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HomeMy WebLinkAboutBUSINESS PLAN 2/2/2008 17 INIIIIIIIIIIII co� I E Envzronmental,�lanagement Services February 2, 2008 Mr, Tim Sullivan Sullivan Petroleum Company, LLC 1508 18th Street, Suite 222 Bakersfield, California, 93301 FOURTH QUARTER 2008 PROGRESS AND 2008 SUMMARY REPORT FOR THE SULLIVAN PETROLEUM COMPANY DOWNTOWN CHEVRON SERVICE STATION 2317 "L"STREET, BAKERSFIELD, CALIFORNIA(CRWQCB-CVR CASE#5T15000836) Dear Mr. Sullivan: 'VEIR Corp is pleased to•present the following Fourth Quarter 2008 Progress and 2008 Summary Report for the above-referenced site. This work was required by the California Regional Water Quality Control Board - Central Valley Region (CRWQCB-CVR) as a result of the discovery of gasoline-containing soil and groundwater in and around the area of the premium grade unleaded gasoline product pipeline extending to the southeastern multiple product dispenser at the site. The revised California Regional Wafer Quality Control Board (CRWQCB) Tri - Regional Board Staff Recommendations for Preliminary Investigation and Evaluation of Underground Tank Sites, Appendix A — Reports, dated April 16, 2004, requires an annual evaluation of hydrologic conditions, contaminant trends, and remediation status. SITE DESCRIPTION The site is located at 2317 "L" Street, Bakersfield, Kern County, California (see Figure 1 - Site Location Map). The site is located within the commercial district, which flanks 23rd and 24th Streets. The Bakersfield City School District operates the Downtown Elementary School, 1,250 feet south of the site and San Joaquin Community Hospital is located 1,500 feet northwest of the site. The site is at an elevation of 404 feet above mean sea level (MSL), and the topography is relatively flat with a slight slope to the southwest. The site is located within the northwest quarter of Section 30, Township 29 South, Range 28 East, Mount Diablo Baseline and Meridian. The site is a newly constructed retail fuel sales facility and mini mart, which opened during the first quarter of 1999. The subject site is the location of double-walled USTs and product piping (see Figure 2—Plot Plan). The property owner contact is Mr. Tim Sullivan, President, Sullivan Petroleum Company, LLC, 1508 18th Street, Suite 222, Bakersfield, California, 93301, (661) 327-5008. The consultant contact is Mr. Mark Magargee, WEIR Corp, 4560 California Ave, Suite 110, Bakersfield, California, 93309, (661) 631-8347. The regulatory agency contact is Mr. John Whiting, California Regional Water Quality Control Board -Central Valley Region, 1685"E" Street, Fresno, California, 93706, (559)445-5504. IIIIIIIIIIIIIIIIIIII 18 IE 456o CaCfornia.,Avenue, Suite 110, Bakersfield, California 933og (661) 631-8347-Fax(661) 31-8007 Contractor License Number 742735--A ivi nv.veir.net Mr. Tim Sullivan Sullivan Petroleum Company, LLC February 2, 2008- Page 2 TOPOGRAPHY, GEOLOGY,AND HYDROGEOLOGY TOPOGRAPHY The site is located at an elevation of 404 feet above MSL, and the topography slopes slightly to the southwest(see Figure 1). The subject site is located on the eastern flank of the San Joaquin Valley and west of the southern Sierra Nevada. GEOLOGY The surface of the San Joaquin Valley is composed primarily of unconsolidated Pleistocene (1.6 million to 11,000 years ago) and Recent (11,000 years ago to the present) alluvial sediments. Beneath the alluvial sediments are older, predominantly lakebed deposits. These lie unconformably on Mio-Pliocene marine sediments, which extend to a crystalline basement at 50,000 fbg (CDMG, 1965, Geologic Map of California, Bakersfield Sheet). At the subject site, surface deposits consist of Quaternary (recent) unconsolidated alluvium overlying Quaternary (Pleistocene) nonmarine sediments. Geologic deposits in the study area include Pleistocene alluvial sediments that form a homocline dipping gently to the southwest. The deposits are alluvium consisting of indurated and dissected fan deposits (CDMG, 1965). Surface soils are classified by the Soils Conservation Services as Kimberlina - Urban Land - Cajon Complex and are characterized as 35 percent Kimberlina fine, sandy loam with moderate permeability; 30 percent Urban land with impervious surfaces and altered fills; and 20 percent Cajon loamy sand with high permeability. Subsurface soils observed at nearby UST sites, and during the construction of water supply wells in the area are characterized as fine-grained to coarse-grained sands with significant intervals of gravels, cobbles, and boulders, and minor intervals of thinly bedded silts and clays through the depth of groundwater at 110 fbg. The site is located in the southern portion of the Great Valley geomorphic province. The Great Valley is a north-south-trending valley, 400 miles long by 50 miles wide, the southern portion of which is known as the San Joaquin Valley. Surface water and groundwater in the San Joaquin Valley are derived predominantly from the Sierra Nevada to the east and are transported by five major rivers, the closest to the site being the Kern River. The subject site is located 1 mile south of the Kern River. HYDROGEOLOGY The depth to the regional, unconfined aquifer is 110 fbg, and the groundwater gradient is to the southwest, away from the Kern River and toward the ancient Kern Lake bed (KCWA, 2000, 1996 Water Supply Report, July 2000). Perched groundwater at depths as shallow as 20 fbg is known to be present flanking the current course of the Kern River, but is not known to extend to the site (KCWA, 2000). WATER WELLS CWSC operates Well #7, approximately 1,000 feet southeast of the site, and Well#64-01, approximately 2,400 feet southeast of the site. Hydrocarbons have not been detected in water samples collected from Well#7. However, MTBE has been detected in water samples collected from well#64-01 and this well is currently inactive. No additional active water supply wells are located within 2,500 feet of the site. Mr. Tim Sullivan Sullivan Petroleum Company, LLC February 2, 2008- Page 3 PREVIOUS WORK During April 1999, product reconciliation records indicated a potential release in the product piping extending from the premium UST to the southeastern MPD. A breach was observed in the product piping. Therefore, Sullivan Petroleum filed An Unauthorized Release Report (URR) with the Bakersfield Fire Department Environmental Services Division (BFDESD). On May 10, 1999, a hand-augered soil boring adjacent was advanced to the location of the product piping breach. Total petroleum hydrocarbons (TPH) as gasoline, benzene, toluene, ethylbenzene, and total xylenes (BTEX), and methyl tertiary butyl ether (MTBE) were detected in the soil sample collected at a depth of 5 fbg. Based on the soil sampling and laboratory analytical results, the BFDESD, required performance of a site assessment. Between 1999 and the present there have been numerous phases of site assessment activities. There are currently 16 groundwater-monitoring wells (MW-1 through MW-14, MW-5d, and MW-8d); six vapor extraction wells (VW-1s, VW-1i, VW-1d, and VW-2 through VW-4), four air sparge wells (SW-1 through SW-4), and one groundwater extraction well (EW-1) at the site (see Figure 2 for the well locations). Installation of an additional downgradient off-site monitoring well (MW-15) has been pending obtaining an access agreement with the off-site property owner, the Kern Community College District (KCCD). During the fourth quarter of 2006 the access agreement was obtained from KCCD. `VEIR Corp anticipates the installation of monitoring well MW-15 during 2008. The depth to groundwater is approximately 120 fbg and the direction of groundwater flow is to the southeast. PSH was originally observed in well VW-1 d, but has not been observed since the first quarter of 2004. TPH as gasoline was detected at a maximum concentration of 8,400 pg/I in the groundwater samples collected during the third quarter of 2008. MTBE was detected at a maximum concentration of 18,000 pg/I in the groundwater samples collected during the third quarter of 2008. Benzene was not detected during the third quarter of 2008 (see Table 1 - Groundwater Sample Analytical Results for Organic Compounds and Attachment 1 for the Groundwater Elevation and Contaminant Histograms). Groundwater samples have also been analyzed for physical and chemical characteristics. The results of the laboratory analysis indicated that the groundwater beneath the site is potable (see Table 2 - Summary of Groundwater Sample Analytical Results for Physical and Chemical Characteristics). During the fourth quarter of 2002 VES operations were initiated at the site. It is estimated that the mass of gasoline hydrocarbons extracted from the subsurface since startup is approximately 141,942 pounds, which is equivalent to approximately 22,178 gallons of gasoline. On April 8, 2005, the direct-fired thermal oxidation vapor extraction unit was converted to the catalytic oxidation mode. `VEIR Corp is currently preparing an application to modify the SJVUAPCD PTO for the addition of the air stripper of the GWPT to the remediation system covered under the PTO. In addition, the electric supply from the service station building to the remediation compound was not adequate for the simultaneous operation of the SVE, AS, and GWPT. Sullivan Petroleum requested that PG&E increase the amperage to the service station. During February of 2006, PG&E replaced the existing transformer with a higher capacity transformer. During March of 2006, the AS unit was delivered to the site and during April of 2006, the AS unit was connected to the electrical supply. During July 2006, simultaneous SVE and AS operations were initiated. Mr. Tim Sullivan Sullivan Petroleum Company, LLC February 2, 2008- Page 4 The concentration of extracted vapors initially increased to in excess of 400 ppmv during simultaneous SVE and AS operations, but had declined to approximately 150 ppmv by the end of the third quarter of 2006. Because the vapor concentrations declined to less than 150 ppmv, the CRWQCB-CVR, in a verbal communication on November 8, 2006, authorized the removal of the catalytic oxidation VES unit from the site and replacement by carbon absorption VES unit. During the first quarter of 2007, an ATC for the carbon absorption VES unit was obtained and on April 19, 2007 simultaneous SVE and AS operations were re-initiated at the site. WEIR Corp is currently obtaining an industrial wastewater discharge permit from the City of Bakersfield Department of Public Works (BDPW) for the discharge of treated groundwater from a off-site GWPT to the municipal sewer, and upon obtaining the permit WEIR Corp will install and start up operation of the GWPT. The CRWQCB-CVR, in its letter dated May 5, 2008, requested submittal of a work plan to install additional deep zone monitoring wells downgradient of off-site monitoring well MW-8 and upgradient of CWSC Wells 64, 93, and 10. There are currently three water table monitoring wells (MW-12 through MW-14) that are downgradient of monitoring well MW-8 that do not detect hydrocarbons and there are two deep zone monitoring wells (MW-5d and MW-8d) downgradient from the petroleum release that do not detect hydrocarbons. VEIR's Additional Off-Site Deep Monitoring Wells Installation Work Plan, dated July 24, 2008, proposed to install a deep zone monitoring well (MW-13d) adjacent to existing water table monitoring well MW-13 and a deep zone monitoring well (MW-16d) midway between monitoring well MW-13 and CWSC Well 64. The CRWQCB-CVR approved implementation of the work plan in its letter dated October 16, 2008. The downgradient deep zone monitoring wells will be installed upon the BDPW issuance of encroachment permits to install the monitoring wells within the public right-of-way. Off-site groundwater monitoring well MWA5 will be constructed at the time the additional deep zone monitoring wells are constructed. GROUNDWATER MONITORING AND SAMPLING PROCEDURES On October 30, and 31, 2008 the depth to groundwater within groundwater monitoring wells MWA through MW-14, groundwater extraction well EW-1, and vapor extraction well VW-1d was measured to an accuracy of X0.01 foot. Due to the ongoing drought, monitoring wells MWA through MW-3, MW-6 MWA 1 and VW-1d were observed to be dry. Before sampling the monitoring wells were checked for an immiscible layer and none was observed. The wells were then purged prior to extracting samples representative of the in-situ groundwater. During the purging process, the conductivity, temperature, and pH of the groundwater were monitored and recorded on water sample logs. Purging continued until a minimum of 3 casing volumes were produced and the measured parameters had stabilized. Groundwater samples were collected after the wells had recharged to greater than 80 percent of their initial static water levels (see Attachment 2 for the Groundwater Monitoring, Sampling, Sample Management Procedures and Attachment 3 for the Water Sample Logs). l 1 Mr. Tim Sullivan Sullivan Petroleum Company, LLC February 2, 2008- Page 6 REMEDIAL ACTION REPORT FOR THE FOURTH QUARTER OF 2008 On May 13, 2002, SJVUAPCD PTO #S-3267-2-0 was obtained for the installation and operation of a thermal oxidation VES. During the third quarter of 2002, the remediation compound was constructed and the vapor extraction wells MW-1, VW-1s, VW-1i, VW-1d, VW-2, VW-3, and VW-4 were connected by 2-inch-diameter underground PVC piping to a collection manifold in the remediation equipment compound. Subsequently, the VES was delivered to the site and connected to electrical and natural gas services. VES operations were initiated on October 8, 2002. The VES unit has operated 24 hours per day since start-up, with only short periods of inactivity for maintenance, draining of the knockout pot, and occurrences when the system has shut down, as well as the unit being shut down 72 hours prior to the second quarter 2005 groundwater monitoring event and restarted after completion of the sample collection. On April 8, 2005, the direct-fired thermal oxidation vapor extraction unit was converted to the catalytic oxidation mode. On November 4, 2005, monitoring wells MWA0 and MW-11 were connected to the VES manifold and extraction from these wells was initiated. This resulted in an immediate increase in extracted vapor concentrations from less than 50 ppmv to greater than 400 ppmv. The extracted vapor concentrations gradually declined to a level of 100 ppmv at the end of the first quarter of 2006. During July of 2006 simultaneous SVE and AS operations were initiated. This also resulted in an immediate increase in extracted vapor concentrations from less than 100 ppmv to greater than 400 ppmv, and the extracted vapor concentrations have gradually declined to a level of approximately 150 ppmv at the end of the third quarter of 2006. Because the vapor concentrations declined to less than 150 ppmv, the CRWQCB-CVR, in a verbal communication on November 8, 2006, authorized the removal of the catalytic oxidation VES unit from the site and replacement by a carbon absorption VES unit. During the first quarter of 2007, an ATC for the carbon absorption VES unit was obtained and on April 19, 2007 simultaneous SVE and AS operations were re-initiated at the site. Inlet vapor concentrations ranged from 10.1 to 67 ppmv during the fourth quarter of 2008 (see Figure 5- Influent and Effluent TPH Concentrations, Table 3 - Summary of Vapor Analytical Results, and Table 4 -Summary of VES Monitoring Data). The inlet soil vapor flow rate had been maintained near the maximum stated in the PTO and consistently ranged from 116 to 126 scfm. It is estimated that the mass of gasoline hydrocarbons extracted from the subsurface since startup is approximately 142,101 pounds, which is equivalent to approximately 22,203 gallons of gasoline (see Figure 6 -Cumulative Extraction Curve and Table 4). WEIR Corp is currently obtaining an industrial wastewater discharge permit from. BDPW for the discharge of treated groundwater from a GWPT to the municipal sewer, and upon obtaining the permit WEIR Corp will install and start up operation of the GWPT. Mr. Tim Sullivan Sullivan Petroleum Company, LLC February 2, 2008- Page 7 2008 SUMMARY REPORT There are 16 groundwater monitoring wells (MW-1 through MW-14, MW-5d, and MW-8d), six vapor extraction wells (VW-1s, VW-1i, VW-1d, and VW-2 through VW-4), four air sparge wells (SW-1 through SW-4), and one groundwater extraction well (EW-1) at the site (see Figure 2 for the well locations). There were no drilling activities at the site during 2008. In order to further investigation of the downgradient concentration of MTBE in groundwater, CSE anticipates the installation of additional off-site monitoring wells MW-13d, MW-15, and MW-16d during 2009. Due to the ongoing drought conditions, the depth to groundwater declined from approximately 115 fbg during the first quarter of 2008 to in excess of 125 fbg during the fourth quarter of 2008 (see Table 1). Throughout 2008 the direction of groundwater flow was to the southeast with the horizontal gradient varying from between 0.02 to 0.03 (2 to 3 feet per 100 feet) (see Attachment 5 for the 2008 Quarterly Groundwater Elevation Contour Maps). PSH was originally observed in well VW-1d, but has not been observed since the first quarter of 2004. TPH as gasoline was detected at a maximum concentration of 34,000 pg/I in the groundwater samples collected during the first quarter of 2008 and 5,200 pg/I in the groundwater samples collected during the fourth quarter of 2008. MTBE was detected at a maximum concentration of 26,000 pg/I in the groundwater samples collected during the first quarter of 2008 and 9,300 pg/I in the groundwater samples collected during the fourth quarter of 2008. Benzene was detected at a maximum concentration of 58 pg/I in the groundwater samples collected during the first quarter of 2008 and was not detected in the groundwater samples collected during the fourth quarter of 2008 (see Attachment 6 for the 2008 Quarterly TPH as Gasoline/Benzene/MTBE Concentrations in Groundwater and Attachment 1 for the Groundwater Elevation and Contaminant Histograms). During the fourth quarter of 2002 VES operations were initiated at the site. It is estimated that the mass of gasoline hydrocarbons extracted from the subsurface since startup is approximately 142,101 pounds, which is equivalent to approximately 22,203 gallons of gasoline (see Figures 5 and 6 and Tables 3 and 4). On April 8, 2005, the direct-fired thermal oxidation vapor extraction unit was converted to the catalytic oxidation mode. On November 4, 2005, monitoring wells MWA 0 and MWA 1 were connected to the VES manifold and extraction from these wells was initiated. This resulted in an immediate increase in extracted vapor concentrations from less than 50 ppmv to greater than 400 ppmv. The extracted vapor concentrations gradually declined to a level of 100 ppmv at the end of the first quarter of 2006. During July of 2006 Vestech initiated simultaneous SVE and AS. This also resulted in an immediate increase in extracted vapor concentrations from less than 100 ppmv to greater than 400 ppmv, and the extracted vapor concentrations have gradually declined to a level of approximately 150 ppmv at the end of the third quarter of 2006. Because the vapor concentrations declined to less than 150 ppmv, the CRWQCB-CVR, in a verbal communication on November 8, 2006, authorized the removal of the catalytic oxidation VES unit from the site and replacement by a carbon absorption VES unit. During the first '1 \ Mr. Tim Sullivan Sullivan Petroleum Company, LLC February 2, 2008- Page 8 quarter of 2007, Vestech obtained an ATC for the carbon absorption VES unit and on April 19, 2007 simultaneous SVE and AS operations were re-initiated at the site. TEIR Corp is currently obtaining an industrial wastewater discharge permit from the BDPW for the discharge of treated groundwater from a off-site GWPT to the municipal sewer, and upon obtaining the permit WEIR Corp will install and start up operation of the GWPT. The CRWQCB-CVR, in its letter dated May 5, 2008, requested submittal of a work plan to install additional deep zone monitoring wells downgradient of off-site monitoring well MW-8 and upgradient of CWSC Wells 64, 93, and 10. There are currently three water table monitoring wells(MW-12 through MW-14) that are downgradient of monitoring well MW-8 that do not detect hydrocarbons and there are two deep zone monitoring wells (MW-5d and MW-8d) downgradient from the petroleum release that do not detect hydrocarbons. VEIR's Additional Off-Site Deep Monitoring Wells Installation Work Plan, dated July 24, 2008, proposed to install a deep zone monitoring well (MW-13d) adjacent to existing water table monitoring well MW-13 and a deep zone monitoring well (MW-16d) midway between monitoring well MW-13 and CWSC Well 64: The CRWQCB-CVR approved implementation of the work plan in its letter dated October 16, 2008. The downgradient deep zone monitoring wells will be installed upon the BDPW issuance of encroachment permits to install the monitoring wells within the public right-of-way. Off-site groundwater monitoring well MW-15 will be constructed at the time the additional deep zone monitoring wells are constructed. ACTIVITIES PLANNED FOR THE FIRST QUARTER OF 2009 During the first quarter of 2009, the following activities will be completed: • Conduct groundwater monitoring and sampling; • Continue SVE and AS operations; • Install off-Site GWPT, pending BDPW issuance of an industrial wastewater discharge permit, and • Construct off-site downgradient monitoring wells MW-13d, MW-15, and MW-16d, pending BDPW issuance of encroachment permits. Mr. Tim Sullivan Sullivan Petroleum Company, LLC February 2, 2008- Page 9 `VEIR Corp trusts that you will find this Fourth Quarter 2008 Progress and 2008 Summary Report to your satisfaction. If you have any questions or require additional information, please contact Mr. Mark R. Magargee at(661) 631=8347 aED G dress mmagargee @veir.net. � EO� Respectfully submitted, ���S 9AG4 No AAO ex IT C2Sri Mark R. Magargee, PG, Hg s �. Consulting Hydrogeologist rq�OFCAI� P� MRM/jlt Enclosures: Figure 1 - Site Location Map Figure 2 - Plot Plan Figure 3 - Groundwater Elevation Contour Map Figure 4 - TPH as Gasoline/Benzene/MTBE Concentrations in Groundwater Figure 5 - Influent and Effluent TPH concentrations Figure 6 - Cumulative Extraction Curve Table 1 - Summary of Groundwater Sample Analytical Results for Organic Compounds Table 2 - Summary of Groundwater Sample Analytical Results for Physical and Chemical Characteristics Table 3 - Summary of Vapor Sample Analytical Results Table 4 - Summary of VES Monitoring Data Attachment 1 - Groundwater Elevation and Contaminant Histograms Attachment 2 - Groundwater Monitoring, Sampling, Sample Management Procedures Attachment 3 - Water Sample Logs Attachment 4 - Laboratory Reports Attachment 5 - 2008 Quarterly Groundwater Elevation Contour Maps Attachment 6 - 2008 Quarterly TPH as Gasoline/Benzene/MTBE Concentrations in Groundwater cc: Mr. John Whiting, CRWQCB-CVR Mr. Howard H. Wines, III, BFDESD FIGURE 5-INFLUENT AND EFFLUENT TPH CONCENTRATIONS 100,000 10,000 -TPH In -TPH Out 1,000 E CL n to C O 100 C O U C O U 2 d 10 A f✓4 h __ _ [f 0 25 50 75 100 125 150 175 200 225 Cumulative Operating Weeks 1 t FIGURE 6-CUMULATIVE EXTRACTION CURVE 150,000 125,000 100,000 1; m a N 75,000 0 a a� w co E �j 50,000 25,000 0 0 25 50 75 100 125 150 175 200 225 Cumulative Operating Weeks j Mr. Tim Sullivan Sullivan Petroleum Company, LLC February 2, 2008- Page 5 Disposable TeflonTm bailers were used to sample the wells. All groundwater samples were placed in chilled VOA vials containing hydrochloric acid as a preservative, labeled, sealed, and recorded on a chain-of-custody record in accordance with the procedures outlined in the CRWQCB-CVR LUFT guidance document. The groundwater samples contained no visible, suspended matter, and no headspace was observed in any of the vials. The samples were then placed in a container filled with Blue-Ice TM for cooling purposes and transported to Moore Twining Associates, a California State-certified laboratory, for analysis. QA/QC sampling included a trip blank, instrument blanks, spikes, and duplicates. FOURTH QUARTER 2008 GROUNDWATER MONITORING The depth to groundwater in the wells was measured to range from approximately 127.30 to 146.30 fbg and the direction of groundwater flow was determined to be to the southeast (see Figure 3 -Groundwater Elevation Contour Map). The groundwater samples were analyzed for TPH as gasoline using EPA Method 8015 (M); and BTEX, MTBE, TBA, DIPE, ETBE, and TAME using EPA Method 8260B. TPH as gasoline was detected in the groundwater samples collected from wells MW-8 at a concentration of 5,200 pg/I. MTBE was detected in the groundwater samples collected from monitoring wells MW-8, and EW-1, reaching a maximum concentration of 9,300 pg/I in the groundwater samples collected from monitoring well MW-8. Benzene was not detected in the groundwater samples collected from the groundwater monitoring wells. TPH as gasoline, benzene, and MTBE were not detected in the groundwater samples.collected from MW-4, MW-5, MW-5d, MW-7, MW-8d, MW-9, MW-10 and the furthest downgradient monitoring wells (MW-12 through MW-14) (see Figure 4 — TPH as Gasoline/Benzene/MTBE Concentrations in Groundwater, Table 1, and Attachment 4 for the Laboratory Reports). WELL DATE DEPTH TO GROUNDWATER TPH AS BENZENE MTBE ID SAMPLED GROUNDWATER ELEVATION GASOLINE I _VW-1d _�10 31-08 DRY N/A -- -- — MW-1 _ 10-31-08 DRY N/A '— _.T__..._.--_..._........_......_..—_____._ - MW-2 10-31-08 DRY N/A -- -- — MW-3 10-31-08 -'� DRY N/A MW-4 10-30-08 127.30 276.41 T _ ND ND MW-5 _10-31-08 _ 129.20 274.21 ND ND ND_ MW-Sd 10-31-08 129.95_ 273.43_ _ND ��ND ND I MW-6_ 10-31-08 _ _ DRY NSA MW-7 —10-31-08 136.51 266.71 ND_ ND ND j MW-8 10-30-08 137.90 266.48 —_�...._...� 5,200, ND 9,300_ MW-8d 10-30-08 138.40 266.20 ND ND ND MW-9 12-30-08 134.32 268.85__ ND^� - ND— ND MW-10 10-31-08 127.50 275.77 ND ND ND MW-11 10-31-08 DRY N/A -- _ _ -- MW-12 10-30-08 143.40 _ 263.68 ND ND ND MW-13 10-30-08 146.30 259.32 N D ND ND MW-14 �10-30-08 146.11 258.69 ND- ND _ ND� EW-1_ 10-31-08 127.40 __ 275.82 _ ND REMEDIAL ACTION REPORT FOR THE FOURTH QUARTER OF 2008 .' .` I Sri Fat Rwl ml Fa LEGEND SULLIVAN PETROLEUM, LLC 0 0.5 1 MILE DOWNTOWN CHEVRON SERVICE STATION 4,0000 5 000 FEET 0 2317"L"STREET i -i i 11 t BAKERSFIELD, CALIFORNIA USGS BAKERSFIELD 7.5 MINUTE SERIES QUADRANGLE TEm Cory � 1 '7 1, 24th STREET 'CANOPY'( sioRE HIGHWAY 178 M W-1 MW-2® CANOPY LVW-1tl,:, W-=,NWA ® mw-ii MW-3 23rd STREET sd MW-6 PROPOSED OFF-SITE MW-10 W %p k .oA/yc�0`2 ,o \ MW-15 mw-9 ` � '�, MW-8d ED 22nd STREET Mw86 (I)MW-12 F- F- w W W W W w LU of af COB Of � 0 #F- U) 7 W (n _ Z O Y J 21st STREET MW-1 3 ®MW-14 23rd STREET LEGEND SULLIVAN PETROLEUM COMPANY, LLC GROUNDWATER MONITORING WELL DOWNTOWN CHEVRON SERVICE STATION 2317"L"STREET PROPOSED GROUNDWATER MONITORING WELL LOCATION BAKERSFIELD, CALIFORNIA FIGURE 2-SITE VICINITY MAP WEIR Cor.p REVISION DATE:FEBRUARY 2,2009 i 24th STREET 0 / HIGHWAY 178 MW-2 �1h DRY 3RY W-1 Lo YAM 1 275 M W-4 6.41 —mw- 23rd 23rd STREE DRY® MW-6 ® MW-5d EDI MW-5 273.43 266.71 DRY 274.21 M -10 .77 MW-9 �6y 268.85 • MW ad®266.21 22nd STREET Mw8@ 266.48 MW-12 2 6 3.6 8 I H O c OD w of SeD Y J Z O MW-13 21st STREET -1 0259.32 ED 2 8.69 GRO UNDWATER LEVELS MEASI IRED OCTOBER 30,AND 31, 200 23rd STREET LEGEND SULLIVAN PETROLEUM COMPANY, LLC S GROUNDWATER MONITORING WELL DOWNTOWN CHEVRON SERVICE STATION 2317"L"STREET #"GROUNDWATER ELVATION CONTOUR BAKERSFIELD, CALIFORNIA loo # (FEET ABOVE MSL) FIGURE 3-GROUNDWATER ELEVATION ###.# GROUNDWATER ELEVATION GROUNDWATER FLOW CONTOUR MAP DIRECTION TEIR Corp REVISION DATE:FEBRUARY 2,2009 f 1 24th STREET m 0 HIGHWAY 178 MW-1 MW DRY DRIB ND/ND12.1 :J ND/ND/ND i' W-1 MW-0 DRY. MW-11 MW-3 RY 23rd STREET DRY -ed MWa ND/ND/ND ND/®N DRY D DRY MW-10 M -5 NDMD/N ��000 'OHO O mw-9 ND/ND/ND® \/NOMD 22nd STREET `N a 5,200/ND/9, 00 (DMW--12 ND/ND/ND LU ~ W W W W U) Y Z O (DMW-13 21st STREET ND/ND/ND G)M W-14 ND/ND/ND GROUNDWATER SAMPLED OCTOBER 30,AND 31, 2008 23rd STREET LEGEND SULLIVAN PETROLEUM COMPANY, LLC ® GROUNDWATER MONITORING WELL * NOT USED FOR CONTOURING SCREENED WITHIN AQUIFER DOWNTOWN CHEVRON SERVICE STATION 2317"L"STREET TPHASGASOLINE/BENZENE/MTBE BAKERSFIELD, CALIFORNIA #/#/# CONCENTRATIONS IN GROUNDWATER (N9/1) FIGURE 4-TPH AS GASOLINE/BENZENE/MTBE # / MTBE CONCENTRATON CONTOUR(Ng/1) CONCENTRATION IN GROUNDWATER ND NOT DETECTED VEIR REVISION DATE:FEBRUARY 2,2009 TABLE 1. SUMMARY OFGROUNDWATER ANALYTICAL RESULTS FOR ORGANIC COMPOUNDS DOWNTOWN CHEVRON SERVICE STATION,BAKERSFIELD,CALIFORNIA Olnaono6 OF➢f11 ro fLOAT1N0 - ffLOUROI,E- 15.1 15./ 15A 1,1,5 wEU.mANO wre oROUeaa vaooutr wATER _m ETHYL- rove ETIIrI• ToTAI +5- TNArE LSOmORYI PJSORiCPfL NAR4 NRtOPYI TRI6aORO TRtaADRO TRS.ETrIrL TRYFTNYI ortEn ELEVATION' 9AMPlEO WATER TMCg1E59 ELEVATON O/40LSIE BENZENE TOLUENE BENZENE XYLEPES MTBE BEP2ENE TOLUENE BENgNE %YLElE9 MfeE TBA OIPE ETBE TARE Oat EDB ACETONE (CFG12) BEtQQlE TOLUENE M®I( TfALFNE BENZETIE BQlg1IE BEI✓gtg ! eEI2E1✓E YOC9 REF (fw-MSL) (n4) (f <raa4ASL) Ow5) (PA Ow4) Owe) 040 0A Ow4) (PA Owm Ow9 049 Ow5) Ow5)(WO Uw4) Iw5) Iro5) (Van Ow'n an (w10 (mm (PA OW) Uw9 Own (wA Ow9 _ CCR P IC O I 1 8021 I 8 0 I TITLE IN G E •• I I I 1001 6801 1.7501 131 11 1001 6801 1,7501 131 •' " I I •' '• •• I •• I I •• •• •• I '• I NIA PO M I SSE O T R O I TO ORS I NIA VW-ld 3-14-01 10.3 296.30 1 ,400 .001 ,200 8, 0 20, 0 1 D D ND 403.73 11-26-01 115.15 0251 288.581 5,300,000 72.000 660.000 120.000 800,000 4.100,0001 4,100.0001 ND D NO ND B _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 3-28-02 114.54 0.25 269.19 1,400,000 11,000 46,000 ND 29,000 1.300,000 1.300.000 ND NO ND NO NO NO C _ 4•Saeen 8-27-02 116.98 025 288.75 - D 75'•125' 8-20-02 119.48 0.25 234.251 - - - - - _ - - - - - - - - - - _ - - - - - - - - - - - E 12-3-02 118.41 0.2 287.32 - F _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 2-23-03 113.25 0.17 290.481 - G 4-21-03 112.87 0.13 290.86 - - - - - _ - - - - - - - - - - - - - - - - - - - - - - - 1-I _ _ _ _ _ _ _ _ _ _ _ _ 8-&03 112.59 0.08 291.14 1 _ 11-12-03 117.3{ 0.181 288.391 - J 1-30-04 115.48 0.07 288.25 - K 426-04 111.41 0.00 292.32 32,000 - - - - - D 3,00 850 6,100 16.000 ND NO NO ND ND NO NO NO NO ND NO NO 240 D NO 4,200 1,200 NO L 7-21-04 114.05 0.00 289.68 20,000 ND NO NO 2,000 29.0001 ND NO NO ND NO NO M _ 8-30-04 114.25 0.00 289.48 M 10-25-04 115.20 0.00 288.53 150,000 160 6,600 1,800 14,000 53.0001 65.000 NO NO ND ND NO NO NO NO 340 ND D N 2-22-05 113.75 0.00 289.981 51,000 .ND 110 200 4,300 110.000 45.000 NO NO ND NO NO NO NO NO NO O ND O 53-05 114.95 0.00 288.781 60,000 96 590 530 10.000 45.000 36,000 P 7.27-05 114.80 0.00 288.93 71,000 110 100 98 4,200 51.000 38.000 O _ 10.28-05 115.00 0.00 288.73 150,000 61 940 1,200 7,800 55.000 75.0001 R _ _ _ _ 1.26-06 10920 0.00 294.53 16,000 NO 82 85 650 11.600 6.000 NO ND ND ND NO S _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 4-26-06 107.20 0.00 296.53 14,000 NO 140 170 1,200 3.600 1.800 NO NO NO T _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 7-27-06 109.65 0.00 294.08 6,400 ND 200 130 850 5.700 1.700 ND NO ND 10-18-06 110.65 0.00 293.081 7,400 NDI 78 100 830 6.900 2.500 NO NO ND V _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1-18-07 107.30 0.00 296.43 8,200 ND 28 46 320 6.100 1 4.500 1300 ND O ND W _ _ _ _ 4-16-07 108.70 0.00 295.03 9,000 11 47 58 390 6.200 4.5001 ND NO NO ND X _ 7-19-07 108.90 0.00 294.83 11,000 15 43 78 470 8.600 7.600 4.100 ND NO NO Y 10.12-07 112.50 0.00 291.23 8,500 12 ND 35 180 4.100 4.300 500 NO NO NO 2 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 2-16-08 113.96 0.00 289.77 33,000 58 52 1000 6000 ND ND ND ND ND NO AA _ _ _ _ 4-15-08 NM 0.00 WA BB _ 8-12-08 DRY 0.00 WA CC _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 10.31-08 DRY 0.001 WA DD _ -1 1-26-01 1 .96 0 67,000 30 3,200 00 D 403.66 3.26-02 114.53 OAO 289.13 48,000 580 1,000 150 780 49.000 49.000 NO NO NO ND ND NO C _ 6-27-02 117-31- 0,00 286.35 21000 ND NO 110 770 NO 29,000 ND NO O 4.7 ND ND D _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 2'Saeen B-20-02 120.02 0,00 283.84 64.000 1,00 3,300 520 2,400 290.000 61.000 NO NO O 11 ND D E _ 75'-125' 12-5-02 118.04 0,00 285.62 57.000 2.000 11,000 1,700 13,000 9.400 1.800 6.300 9601 4.500 38.000 470 NO ND 27 NO ND ND 32 59 5 NO 210 130 ND NO 1.800 430 ND F 2-24-03 114.73 0.00 288.93 33,000 1,700 3,400 1,400 11,000 15.000 43.000 ND ND NO 35 ND NO G _ 421-03 114.03 0,00 289.93 59,000 2.500 7,000 1,800 12,000 17,000 2.200 16,000 1,800 8,800 59,000 ND ND D NO NO ND NO ND ND NO NO 260 ND NO ND ND ND ND H 8-6-03 113.75 0.00 289.91 190,000 2.100 19,000 5,200 44,000 64,000 310 6.200 1,200 8.300 14,000 ND NO NO NO ND NO NO ND ND NO NO NO NO NO NO ND NO NO I 11-12-03 114.56 0.00 289.10 600 ND 360 500 ,000 11,000 ND ND ND ND ND NO J _ _ _ _ _ 1-30.04 112.98 0.00 290.68 43.000 1001 1.100 100 4,300 12,000 NO ND ND 21 ND NO NO 290 ND ND NO NO ND NO K 4-26-04 112.00 0.00 291.66 4,500 ND ND ND 430 2,300 ND ND ND NO NO NO NO NO ND NO NO NO ND ND ND 860 190 NO L -21-04 114.69 0.00 288.97 5,600 NDI NO 89 470 500 NO NO NO NO ND ND M B-30.04 115.60 0.00 288.08 - - - - - - - - - - - - - - - - - M _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 10.25-04 115.81 0.00 287.85 3,100 ND ND 15 63 240 NO NO NO ND NO NO NO ND NO NO NO ND ND N 2-23-05 112.48 0.00 291.18 2.800 NDI NO D ND 1,400 510 ND NO ND ND ND ND NO ND NO ND NO NO O 53-05 114.45 0.00 289.21 4.300 4.9 27 O 490 5,800 4,200 P _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ -27-05 113.50 0.00 290.16 2,600 ND NO 11 41 1,100 860 O 10-28-05 113.75 0.00 289.91 1600 4.2 NO 1.3 21 810 600 R _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1-25-06 109.80 0.00 293.88 5.900 ND 4 ND 640 3,900 3,800 NO ND ND NO ND S 4-26-06 109.90 0.00 293.76 8.100 8 8.8 4.4 870 2,100 1,100 NO NO NO T _ 7-27-08 110.35 0.00 293.31 5.600 23 28 4.8 730 2,300 530 NO NO 11 U _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 10.18-06 111.30 0.00 292.38 2,400 - 31 23 1.9 220 1,200 910 NO NO ND V _ _ _ _ F47 107.78 0.00 295.88 470 NO ND N ND 560 350 180 NO NO NO 109.35 0.00 294.31 450 NO NO NO NO 4701 580 200 NO NO ND X _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 109.60 0.00 294.08 ND NO D NO NO 4.3 4.1 NO NO NO NO Y _ 113.10 0.00 290.56 ND NO NO NO NO NO NO ND ND ND ND _ 114.48 0.00 289.18 87 ND D ND NO 73 57 ND ND ND ND AA 116.61 6.00 287.05 NO ND ND NO NO NO NO NO NO NO ND BB DRY 0.00 WA CC _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _DRY 0.00 WA p 11-26-01 .20 6 21 .4 .4 403.45 3-2M2 113.30 0.00 290.15 1,300 65 430 1 170 38 38 NO NO NO ND NO NO C _ _ _ _ --6:27-:02- 115.66 0.00 287.79 350 32 1101 f0 68 500 170 ND ND ND ND ND NO D 2•Saeen &20-02 118.25 0.00 285.20 53 ND 2.2 NO I 3.2 110 28 ND ND NO NO NO NO 75'-125' 12-592 116.26 0.00 287.19 ,400 140 16 24 280 5,100 100 5.4 3.5 105 16,000 1.500 NO NO 3.38 NO ND N 64 NO ND ND 1.4 NO NO NO 27 18 NO F 2-24-03 113.19 0.00 290.26 74 0.57 ND NO NO 90 60 ND ND NO NO NO NO G _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 4-21-03 112.64 0.00 290.81 2,900 6.7 -6:55 O 3.9 1,600 ND NO ND NO 920 ND ND NO ND ND ND ND N NO N N ND ND NO ND ND NO NO H 5-0-03 112.33 0.00 291.1 NO NO NO NO NO D ND ND ND ND D ND ND 35 ND NO O ND ND NO NO NO NO ND 1 11-12-03 114.46 0.00 288.99 ND NO 12 NO 8.7 .8 NO ND ND ND NO ND 1-30-04 111.69 0.00 291.8 73 1.9 ND NO ND 22 NO NO NO 0 NO NO O N ND O ND ND ND NO K 4-23-04 110.60 0.00 292.85 ND NO ND NO NO .1 NO N ND ND NO NO NO ND ND NO N ND D O ND ND ND ND L 7-21-04 113.25 0.00 290.20 73 ND ND D ND 3.2 NO ND ND ND ND ND M _ 8-30-04 114.00 0.00 289.45 M _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 10-22-04 114.40 0.00 289.05 ND NO! ND NO NO ND NO D ND N ND N NO 20 NO ND ND NO N 2-22-05 110.80 0.00 292.65 ND ND ND ND NO 1.8 ND NO NO ND O NO NO 24 NO ND ND NO O 5 110.00 0.00 293.45 ND NO ND ND NO 2.6 0.87 P 7-27-05 113.48 0.001 289.97 ND NO ND ND NO NO 1.1 p _ _ _ _ 10-2-05 112.20 0.00 29125 ND NO ND NO NO NO NO R _ 1-25-06 108.10 0.00 295.35 NO ND NO NO NO ND ND ND ND ND ND N S _ 4-26-06 106.23 0.00 297.22 ND NO ND ND ND 5.9 ND ND ND ND T _ -1 108.47 0.00 294.98 NO O ND D NO ND ND ND ND ND U 10.18-06 109.40 0.00 294.05 NO D ND D NO ND ND ND ND ND 1-16-07 1 .00 0.00 297.45 ND NO NO ND NO NO ND NO NO ND ND _ _ _ _ _ _ _ _ _ _ _ _ _ _ 4-1597 107.70 0.00 295.751 NDI NO NO NO NDi ND 2.4 ND ND ND ND 7-17-07 108.00 0.00 29.45 NO ND NO ND ND D 2.7 NO NO NO ND 10.12-07 111.50 0.00 291.95 D ND NO ND ND D ND ND ND ND ND 2-18-08 113.51 0.00 289.54 ND ND ND ND D NO ND ND ND ND ND 4-15-08 NM 0.00 WA aa B-12-08 DRY 0.00 WA CC 10.31-08 DRY 0.00 WA _ - - _ - - - - - _ - - - - - - - - - - - - - - - - - - - TABLE 1. SUMMARY OFGROUNDWATER ANALYTICAL RESULTS FOR ORGANIC COMPOUNDS DOWNTOWN CHEVRON SERVICE STATION,BAKERSFIELD.CALIFORNIA O G60 iOD DEifll ro FLWT1q GRAM IFLOUROME- 1,1,3 1�,A 1],1 1}} W ALL GATE WAO Wi00NCT WATER TFNAS ETHri- TOTAL F.TNK- TOTAL 1,3- TllAlff 60GROPfL P60PROPYL NAPK NiROPYL TRIC160R0 lAIGLL0R0 TRM.RMYL TRPEnIYI OTl1FA ELEVATg1l $AI,PlEO WATER TIIXIOIES4 ELEVAitON OASOl21E mod= TOLt1E1lE eElaEt4: %riET�4 IrteE BFlltEt� TOLUENE BEFIIEt� %YIEtgS MBE TFM DBE ETHE TAME a.-A EDB ACETONE (LTC 4 9EIIIENE TOLUENE M®I( TNAIENE eENIENE �I!$ff BEIlZEHE BQ�Iff BENZEI� VOCS REF OW4ASL) (ft) (faeq (teal-IASL) Od0 OWO (Pom (FW) (m (4W) (WA OGM (VC4) OAYO (mm OAN) (mm(mm OA90 (mm (FC+) (14A DW) (IAN) (f9A) OAVB UAN) (mm (VV0 Ow9 CIGM Ow0 C O O1 I 0 8260 I A CCR TITL 22 1 I I 11 1001 6801 1,7501 1: 6801 f T.DI 31 I ^ " " I I " I I I I I I I I I I I A REPORTING 1 S-S O OR REPORTS VARIES-SEE S O OR R O TS 19FA MW-3 1 1 - I 0.001 289.161 ID,000 90 8 I 991 OOI 0 D D D 403.14 3-28-02 113.68 0.00 289.48 48,000 110 380 36 330 23,000 23,000 NO ND NO NO ND NO C _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 6-27-02 116.41 0.00 288.73 13,000 64 290 601 390 17,000 14,000 NO ND NO 3.7 ND NO D 2'Sveen 8-20-02 118.86 0.00 284.28 12,000 63 140 59 440 44,000 11,000 NO NO NO 3.7 NO NO E 75'-125' 12-3-02 117.05 0.00 286.09 2,100 19 46 7.7 54 3,100 5.7 18 0.71 61.9 4,100 34 NO NO ND NO NO NO 190 NO ND NO NO NO NO NO 2.8 0.87 ND F 2-24-03 3114 95 '0.00 289.19 1,700 NO NO ND ND 1,700 3,400 ND NO NO ND ND NO G _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 4-21-03 39 0.001 289.75 7,600 12 4.2 2.9 20 8.3001 NO NO ND 200 10,000 NO NO NO NO NO NO NO NO ND NO ND ND NO NO ND ND NO NO H BB-03 12 0.00 290.02 81 0.85 t.8 ND 2.1 76 O NO ND ND 31 NO NO NO NO NO ND NO 85 NO NO NO NO NO NO NO NO NO ND I 2-03 20 0.00 287.94 470 NO NO ND ND 1,900 NO NO NO ND D ND J _34 0.00 290.80 2,100 8.5 26 1.6 23 2,100 NO NO NO 51 NO NO ND NO NO N ND NO NO NO K 4-23-04 35 0.00 291.79 290 NO ND ND ND 11,000 NO NO NO NO ND ND NO ND NO NO NO NO NO NO NO NO NO NO L 7-21-04 04 0.00 289.10 390 D NO ND NO 380 ND NO NO ND NO ND M _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _8-30.04 95 0.00 288.19 M _ 10.22-04 115.151 0.00 287.99 300 2.3 11 0.70 20 140 140 NO N NO NO NO ND 27 N NO NO 2.7 N 2-22-05 111.55 0.00 291.59 97 O 0.79 ND 2.5 48 81 ND NO NO O NO D 30 NO NO NO NO O 5-3-05 110.75 0.00 292.39 80 2.9 8.7 1.2 33 17,901) 12,000 P 7-27-05 114.20 0.00 288.94 200 0.9 7.91 0.69 16 130 55 O 10.27-05 113.00 0.00 290.14 110 NO ND NO ND 120 97 R _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1-24-08 108.851 0.00 294.291 76 DI 0.96 NO 3.1 35 850 NO ND ND NO ND S _ 4-25-06 106.95 0.00 298.19 230 1.11 4.6 0.55 11 160 1,600 ND NO NO T _ _ _ _ _ 7-25-06 109.20 0.00 293.94 130 DI 1.6 ND 4.1 110 240 NO ND NO U _ 10.17-06 110.35 0.00 292.79 180 NDI NO NO 1A 73 76 NO O NO 1-16-07 106.80 0.00 298.34 NO ND ND NO 1.5 4.6 5.1 O ND NO NO W 413-07 108.45 0.00 294.69 ND ND D NO NO 23 20 NO NO NO NO 7-17-07 108,68 0.00 294.46 NO ND ND NO ND ND 1.3 NO NO D NO_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 10.11-07 112.60 0.00 290.54 NO ND NO ND ND ND D NO ND ND ND Z _ _ _ _ _ _ _ _ _ _ _ _ _ _ 2-18-08 113.81 0.00 289.33 NO ND NO NO ND ND ND NO ND D ND AA 4-15-08 116.12 0.00 287.02 NO ND ND NO NO ND NO NO ND D ND B _ _ _ _ &12-08 DRY 0.00 WA CC 10.31-08 DRY 0.00 WA DO 4-21-03 16.4 .00 ,0 O 403.71 8-"3 115.73 0.00 287.98 24,000 850 100 1.9 670 19.000 620 ND ND 450 37.000 ND ND ND ND ND ND ND ND ND ND ND ND ND ND I 11-12-03 117.97 0.00 285.74 510 ND ND NO NO 1,800 NO NO NO NO NO NO J _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1-30.04 115.22 0.00 288.49 3,500 301 3.5 3 310 7,800 D NO NO 27 NO NO NO 43 NO NO NO ND ND NO K 4-23-04 114.00 0.00 289.71 5.700 ND NO NO 380 13.000 NO NO D NO NO NO NO NO NO ND NO ND NO NO NO 480 ND D L 7-20.04 114.00 0.00 289.71 2.000 NDI ND ND ND 7.200 ND ND ND ND ND ND M _ _ _ _ _ B-30-04 116.50 0.00 287.21 M 10-22-04 117.90 0.00 285.61 150 NO NO NO NO 78 NO N O NO O NO NO 2 NO NO NO NO N 2-22-05 114.15 0.00 289.56 600 6.66 NDI ND 24 1,00 580 ND ND NO NO NO NO 17 NO 18 NO NO O 5-2-05 113.15 0.00 290.56 1.100 1.1 NO 1.1 26 3,600 2.600 P _ 7-26-05 117.05 0.00 286.66 4.400 NO NO NO 68 4,700 3,306 O _ _ _ _ 10.27-05 115.60 0.00 288.11 170 NO NO NO 3.2 130 130 R 1-24-06 111.55 0.00 292.16 630 NO ND ND 1.9 6.6 NO ND ND ND D ND S _ _ _ _ _ 4-25-06 109.55 0.00 294.16 1.500 2.3 0.7 23 94 300 89 ND NO NO T _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 7-26-06 111.85 0.00 291.86 1.500 1.2 NO 8.1 90 176 66 NO ND NO U _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 10.17-06 113.00 0.00 290.71 540 0.6 NO 2.3 5.8 46 26 NO ND NO V 1.16-07 109.70 0.00 294.01 300 0.73 NO 9.3 16 9 9.4 NO NO NO NO_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 4.16-07 111.10 0.00 292.61 730 1.8 NO 37 24 10 6.8 ND NO ND NO X _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 7-19-07 111.05 0.00 292.56 100 ND NO ND NO 35 50 NO NO NO ND Y 10.11-07 114.72 0.00 288.99 ND ND NO ND NO 10 11 NO NO NO NO Z 2-18-08 NM 0.00 WA _ - _ _ - - - - - - - - - - - - - - AA _ 4-15-08 NM 0.00 WA BE _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 8-12-08 124.31 0.00 279.40 ND���ND NO 2.3 ND ND - - - - NO ND N NO NO - - - - - - - - - - - - - - CC 10.30-08 127.30 0.00 276.N NDI ND NO 2.3 NO ND NO NO NDI NO D DD 4-21-03 11 285.381 .0 0 - -1 _ - - - D - D - - -D 200 403.41 3 117.51 0.00 285.90 45.000 4.400 2.100 200 4,000 24,000 5.200 2.100 150 2700 87,000 ND NO NO O NO NO O NO NO NO NO NO NO NO 11-12-03 119.85 0.00 283.55 8,000 2.100 410 NO 400 28.000 ND D NO NO NO _ 1-29-04 117.09 0.00 288.32 4,000 95 340 NO 400 4,100 D NO 21 2 NO N NO NO NO NO NO D N NO 4-23-04 115.85 0.00 287.56 1.500 D NO NO 350 5,700 ND N D ND ND ND D O NO ND NO 1,900 NO 2,100 670 NO NO NO L -21-04 118.15 0.00 295.26 6,700 NO D ND ND 8,000 NO NO D Nb ND NO M 8-30-04 118,85 0.00 284.56 M 10.25-04 119.45 0.00 283.96 550 12 1.8 1.5 19 1,600 1,500 D 1.3 NO NO NO 1 NO NO N 100 N 2.22-05 115,92 0.00 287.49 2,900 NO NO ND 320 8.300 .500 ND D ND O N D O NO NO NO NO O 5-3-05 114.92 0.00 288.49 5,000 38 29 32 200 5.300 4,700 P _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ -27-05 118.80 0.00 284.61 91000 51 46 57 160 9.300 6.900 10.28-05 117.50 0.00 285.91 5,900 16 2.7 3< 100 3.800 3.800 R _ 1-25-08 113.55 0.00 289.B6J 2,400 - - - - - 13 1.6 16 54 3,300 1000 N NO 2.3 NO N - - - - - - - - - - - - S 4-26.06 114.45 0.00 288.96 2,400 11 1.B 28 81 3,400 SBO ND NO NO T _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ -2 113.78 0.00 89.63 4,800 13 3 62 170 4.300 1.900 NO NO 7.2 10-18-06 115.22 0.00 288.18 1,100 4.3 0.60 20 24 980 410 ND NO NO 1-18-07 111.50 0.00 291.91 410 0.89 NO 5.2 18 490 330 160 ND NO ND 4-16-07 112.90 0.00 290.1 1,100 1.2 NO 12 83 580 760 ND ND ND ND _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ -1 S-07 112.80 0.00 290.81 3,800 NO NO 58 130 2,200 2,300 ND ND NO NO 10.12-07 116.15 0.00 287.26 3,400 2.9 NO 37 83 600 480 4 ND ND ND _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 2-18-08 NM 0.00 WA AA 4-1 8 M 0.00 WA _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ BE 8-1-08 NM 0.00 WA - - - - - - - - - - - - - - - _ - - - - _ _ - - - - - - _ CC 10.2-08 128.40 0.00 275.011 ND ND ND ND ND ND 1.1 ND D ND ND D 10.31-08 129.20 0.00 274.21 D D ND ND D ND ND ND NO ND ND DD TABLE 1. SUMMARY OFGROUNDWATER ANALYTICAL RESULTS FOR ORGANIC COMPOUNDS DOWNTOWN CHEVRON SERVICE STATION,BAKERSFIELD,CALIFORNIA o�Taonoo ceP1N TO rLwTwo cNOUNo- o-,.olma.E- 1,21 f11 +a.. +a.s VJELLm ANO wTE WATER PROdlOT WATER TPN A9 ETNri- TOTAL ETHYL- TOTK 1]- THANE CfOPRORYL PJSOPIEORlL NAR4 N-0ROPYL TRE]IlIXtO TRICNLORO Tim.@THYL TRPEfNYL OTIffA EL ATK)f1' SAMRID WATER T/EGQIESS ELEVATgN fYISOLWE BENZEIg TOLUENE BEN?ENE %'M1ENE9 MTEE BEIlgNE TOLUENE SEl2E1lE XYlENE3 MTSE TSA CRE ETSE TPME OCA EOS ACETOfg (CFG1n BEN7'E!!E TOLUE!!F M>BIf TNALENE BEIlgIlE �t� BEl�fd< BEN>E!!F BEf✓gt� VOC9 REF (fst-NSL) (1E7) (faN) (1sl•MSy 9qn) 94W 94'9 9w8 (RWO 9W) UWO 9U0 944) (f9m (V7A) (Iqm (144)(RGA) (VW) (VGA) 94'1) (W7) 9410 (144) WW) (VWI (1419 940 9419 (V4'9 9W) (IV19 I 8 I 26 I CC I C I I I 0 1 01 01 31 8 1 ,7 I " P MW-5d - 1 .0 86.8 60 D I D D D 403.38 4.22-04 116.001 0.00 287.38 78 ND ND NO ND 53 NO ND ND ND ND ND ND ND NDI ND ND ND ND ND ND ND ND D 7.21-04 118.40 0.00 284.98 NO NO NO NO NO NO NO NO ND NO NO NO M &30-04 118.901 0.00 284.48 - - - - - - - - - - - - - - - - - M 10.25-04 119.50 0.00 283.88 NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO ND N 2.22-05 118.25 0.00 287.13 59 NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO NO O O 54-05 115.10 0.00 288.28 NO NO NO NO NO NO P 7.27-05 118.80 0.00 284.58 O NO NO NO NO NO D 10.28-05 117.78 0.00 285.60 ND NO NO ND NO NO R 1.25-06 113.85 0.00 289.3 NO NO NO NO NO NO ND NO ND NO ND NO S _ _ _ _ _ 4-26-06 111.82 0.00 291.56 NO NO ND ND ND NO ND NO NO NO T 7-26-06 114.40 0.00 288.98 NO NO ND NO ND NO ND NO ND NO U 10.18-06 115.65 0.00 287.73 ND NO ND ND ND NO ND NO NO NO V 1-18-07 111.75 0.00 291.63 NO- NO NO NO ND ND NO NO NO NO NO W _ _ _ _ 4-16-07 11325 0.00 290.13 NO NO NO ND NO ND NO NO ND NO NO X 7-18-07 113.48 0.00 289,90 NO NO NO ND ND NO NO NO ND NO NO Y 10.12-07 116.70 0.00 288.68 NO NO NO NO NO NO NO NO ND NO NO 2 10.12-07 NM 0.00 WA AA 41508 NM 0.00 WA BB _ 8-12-08 _ NM 0.00 WA CC _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 10.2-08 129.30 0.00 274.08 ND ND ND ND ND ND 3.0 NO NO NO NO OD t0-31-08 129.951 0.00 273.43 ND ND ND ND ND ND ND NO NO NO NO DD 4-21-03 1 8.6 ,0 0 3.8 3.8 430 1 00 290 0 ,000 D D D D D N D D D D D 403.22 8-03 115.21 0.00 288.01 200 4.6 ND ND 3.3 190 3 NO NO NO 230 NO NO ND 37 NO NO ND NO ND D MND 11-12-03 117.65 0.00 28.57 740 NO NO NO NO 2,200 NO NO NO NO NO NO 1-29-04 114.65 0.00 288.57 1,700 58 NO NO NO 12,000 NO ND 2,200 33 ND ND ND 8.6 ND NO NO NO NO K 4-23-04 113.65 0.00 289.57 410 NO ND ND NO 11,000 NO ND NO NO NO NO NO NO NO NO NO NO NO N-20-04 116.05 0.00 287.17 520 NO NO NO - NO 3,6001 ND O ND NO NO ND M _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _8-30-04 116.25 0.00 286.97 M _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _10.22-04 117.45 0.00 28.77 66 ND NO NO NO 66 NO NO NO NO ND NO N 36 O NO NO N 2-22-05 113.9 0.001 289.43 560 NO NO NO NO ,1001 3,100 NO NO NO NO NO NO 39 NO ND NO O 5-3-05 112.97 0.00 290.25 510 NO ND NO D 8,00 6,500_ _ _ _ _ _ _ _-27-05 114.90 0.001 288.32 12,000 NO NO NO 1.6 14,000 9,000_ _ _ _ _ _ _ _ _ 10.28-0 115.28 0.00 287.94 6,200 NO NO NO NO 5.600 5,600 R 1-25-06 111.35 0.00 291.87 210 NO NO NO O 330 160 NO ND N NO NO S 4-26-06 109.38 0.001 293.84 230 NO ND NO D 420 63 O ND NO T -26-06 111.65 0.001 291.57 300 ND O NO D 390 130 NO ND NO U 10.18-06 112.90 0.00 290.32 150 NO ND O ND 140 51 NO ND ND V _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1-18-07. 110.45 0.00 292.77 NO ND O NO D 4.7 4.4 NO O NO O W 4-16-07 110. 0.00 292.50 D ND NO O ND D O NO O NO NO X 7-18-07 110.90 0.00 292.32 NO NO NO NO ND NO O NO ND ND NO Y 10.12-07 114.35 0.00 288.87 ND NO NO NO NO NO ND NO D O NO Z 2-18-08 115.87 0.00 287.35 D NO ND D NO NO O NO D O NO AA M15-08 118.80 0.00 284.42 NO NO D NO O NO NO NO O NO NO BB 8-11-08 DRY 0.00 WA CC _ _ _ _ _ 10-31-08 DRY 0.00 WA DD 0.00 28.9 O 3. 403.22 4-22-04 120.32 0.00 282.90 280 NO ND NO D ND ND D NO NO D D ND D ND NO NO NN 7-21-04 122.30 0.00 280.92 260 D ND D ND 5.4 NO D NO ND O ND M &30-04 123.66 0.00 279.58 - - - - - - - - - - - - - - - M 10.22.04 124.00 0.00 279.22 .150 NO D ND NO 15 ND D ND N ND D 4.1 NO NO NO N 2-21-05 120.10 0.00 283.12 63 NO ND ND O NO ND D ND ND ND ND ND 8.8 ND NO NO O 4-29-05 119.33 0.00 283.69 NO O D ND D ND P _ -25-05 121.15 0.00 282.07 ND NO D ND D NO D 10.27-05 122.10 0.00 281.12 ND NO D ND ND 3.2 - 3.2 R 1-2 118.40 0.00 254.82 NO NO NO O NO NO NO O NO NO NO ND S 4-2 118.32 0.00 288.90 ND NO NO D NO NO ND ND ND ND T 7-2 118.35 0.00 254.87 NO NO NO NO NO NO NO NO NO NO U 10.16-OB 120.10 0.00 283.12 ND NO O NO NO D ND D ND NO V 1-16-07 116.80 0.00 286.42 ND NO NO N D N ND ND NO NO NO W _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 4-12-07 117.88 0.00 285.34 ND D O NO ND NO D ND D ND ND X _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 7-16-07 116.90 0.00 286.32 ND D NO ND O NO D ND ND NO NO 16-10-07 120.50 0.00 282.72 ND D D D D NO D ND ND ND ND 2-18-08 121.11 0.00 282.11 ND D NO ND D NO ND ND ND NO NO AA 414-08 124,32 0.00 278.90 ND D NO NO D N ND ND ND ND ND 88 8-11-08 129.22 0.00 2 4.00 ND D O NO O NO - - - - ND ND ND NO I ND - - - - - - - - - - - - - - CC 10.31-08 136.51 0.00 268.71 ND D D NDI D NO ND NDI ND NO T ND OD TABLE 1. SUMMARY OFGROUNDWATER ANALYTICAL RESULTS FOR ORGANIC COMPOUNDS DOWNTOWN CHEVRON SERVICE STATION,BAKERSFIELD,CALIFORNIA O GAOR06 OEPTN TO FLMTSIO ORATED ElAUR01E- 1]J 1]A 1]A t?A WELLm HID. DATE OROUtSJ- PRODUCT WATER TPH A9 ETHYL- TOTAL ETHYL• TOTAL 1)- TlWIE 60PROPIL PISOPROPYL NAPK N-PNOPYI.TRIG40R0 TRIGSORO TROETHYL TRA�TIM OT1�R ELEVATXON' S1YPlED WATER TMEACg59 ELEVATION (LISOIp✓E SENTFUa TOLUEIlE BElIIENE %YLENE9 MTSE BEFIIENE TOLUENE. BENZENE %YLEI✓ES MiSE TBA OBE ETEE TAME OfJ1 EDS ACETONE (C 12) BEtIIEtQ: TOLUENE L@0( TNNENE BFIRFNE SENg1A: BEtIIEI� BEIPE!@ BEIIIEI� YOCS REF (fW-MST (ib7) (tat) lrae-NSU (WO (AM (PWl (wN (mm (WO (PA OWO (mm OW) Alum w (w10(Iwp Swt) (WO (mm (mm w (WO (WO (wm NWl (WO Oqm OroAI (xc4) UW9 O 8 M i I 8260 I NIAI C D I T I I 11 100i 680i 1,750 I I 01 " " " I " " 1 " I " I I I I O G I E O O REPORTS I A -8 1-2 I .8 I I I D 0 D D D D D D 404.38 4-22-04 125.72 0.00 278.68 5.300 NO NO NO NO 35.000 NO NO NO ND ND NO NO NO NO NO NO NO NO NO D ND ND ND L 7-20-04 127.92 0.00 276.48 590 ND ND ND ND 11.000. ND ND ND NDI ND ND M 8-30-04 129.46 0.00 274.92 - - - - _ - - _ - - - - - - 10-21-04 129.67 0.00 274.71 49.000 NO NO NO NO 49.000 39.000 NO NO NO NO NO NO NO NO NO NO NO N 2-18-05 125.60 0.00 278.78 8.700 ND ND ND ND 3.700 NO NO NO NO NO NO NO NO NO NO O NO 0 4-29-05 124.601 0.00 279.78 40.000 D ND D NO 51.000 40.000 P , 7-26-05 126.601 0.00 277.78 22.006 ND ND ND ND 29,000 20.000 D 10.2845 127.65 0.00 276.73 33,000 ND ND D ND 34,000 23.000 -R _ 1-23-06 124.00 0.00 280.38 5500 NO NO NO NO .6.000 3,700 NO NO 5.6 NO NO S 4-24-06 121.92 0.00 282.76 9,000 NO NO ND NO 28,000 12.000 NO NO 23 T 7-26-06 123.55 0.00 280.83 8.00 NO NO NO NO 8,700 - 2,700 NO ND 20 U _ _ _ _ _ _ _ _ _ _ _ _ _ _ 10.17.06 125757 0.00 278.81 4,300 NO NO NO NO 12,000 8.600 ND ND 8,3 1-15-07 122.00 0.00 282.38 22,000 D ND ND ND 34.000 ND NO NO NO 23,000 7,600 ND ND 37 NO NO NO 35 NO NO NO NO NO NO NO ND ND W 4-12-07 122.70 0.00 I 281.68 1 18,000 NDI NDI NDJ NDI 20.000 110 NO NO NO NO X 7-16-07 121.80 0.001 282.58 5,000 NO ND ND NDI 6.400 - - - - 7,100 NO NO NDI� NO 10.11-07 125.55 0.00 278.83 24,000 NO ND ND Nb� 29.000 - - - - 32,000 3.200 NO NO NO - - - - - - - - - - - - - - Z 2.15-08 128.08 0.00 278.32 34,000 NO ND ND NDI 30.000 26,000 NO NO NO NO AA _ 4-14-08 127.88 0.00 276.70 28,000 NO ND ND ND 25.000 - - - - 30,000 NO NO NO NO - - - - - - - - - - - - - - BB 8-11-08 133.94 0.00 270.44 8,400 NO NDJ NDI NDJ 7.0001 18,000 NO NO NO NO - - - - - - - - - - - - - - CC 10.30-08 137.901 0.001 256.48 5200 NO NDI NDI NO 4400 9.300 ND ND ND ND D -8 9. 0.0 2 4.6 D D D D 1 D D 404.60 10.21-04 129.95 0.00 274.6 D ND ND ND ND ND ND ND ND ND ND ND ND 4.2 ND ND ND ND N 2-18-05 125.55 0.00 279.05 ND NO NO NO NO NO NO NO NO NO NO NO NO 3.4 NO NDI NO NO O 4-29-05 124.78 0.00 279.82 NO NO ND NO N NO P 7-25-05 128.80 0.00 275.801 ND NO NO NO ND Nb D _ 10.26-05 128.00 0.00 276.60 ND ND NO NO NO NO R - 1-23-08 123.90 0.00 280.70 ND ND ND ND ND ND ND ND ND ND ND ND S _ 4-24-06 121.82 0.00 282.78 NO NO NO ND NO NO NO NO NO NO T 7-25-06 124.10 0.00 280.50 ND NO NO NO NO NO NO NO NO NO U 1617-06 125.75 0.00 278.8 ND NO NO NO NO NO NO NO NO NO V _ 1-1507 122.05 0.00 282.5 ND NO NO ND ND ND NO NO NO NO NO NO W _ _[ 123.10 0.00 291.50 ND ND ND NO ND ND ND ND ND ND ND X 7-17-07 122.73 0.00 281.87 ND ND ND ND ND ND ND ND ND ND ND Y ,4-13'07 0.10-07 126.10 0.00 278.50 ND ND NO ND ND ND ND - ND ND NO NO Z 2-15-08 126.56 0.00 278.041 ND ND D D AA 4-14-08 128.18 0.00 276.421 ND ND ND ND ND ND D NO ND ND ND&11-08 135.20 0.00 269.40 ND ND ND ND ND ND ND D ND NO D 0.30-08 138.40 0.00 266.201 ND ND NO NO NDI D I I I I I NO I NO I NUI NDI NDI I I I DD TABLE 1. SUMMARY OFGROUNDWATER ANALYTICAL RESULTS FOR ORGANIC COMPOUNDS DOWNTOWN CHEVRON SERVICE STATION,BAKERSFIELD,CALIFORNIA - UOIIOR E. ' OEPTH TO FLOATBlO OROUI@ RLOUROa@• 12d 131 12,a 123 WELL®AND GATE GI RTOp1CT WATER TAt AS ETHYL. TOTK ETHYL• TOTK 12• THANE E,YJPROPYL PSOPROPYL NAPK N-PROPfL TR1C160R0 TRIG60R0 TRPQiXYL TAD,d:THYI OTI�R ELEVATION' BAaPIED WATER TIBCIGIESS ELEVATION OABGLPIE BEMEIE TOLUENE BEN2E1lE XYIEIIIES MTBE BEN2Et� TOLUE!!E BEPCENE %YLEt✓ES MTBE TBA CIPE ETBE TN.d: IXw EDB ACETONE R3"G1� BENZENE TOLUENE M0K TNALENE BEIIIENE BENZENE BENgIlE BENgI✓E BETffi✓e VOCS REF - (hm-MSU (Bq) (hat) (hN-MSU (oat) Oa0 Oa41 Oa'0 Oct) Uu1) (tW) Ow0 WW) U40 WW) WW). O+a•8 WW) lRa4) ONm OATR) OW) WW1 040. Uw11 Z " 040 (140 WW) 040 WW) 1 '801A(M) 1 8260 C 22 RI G I I t l 01 1 1. 1 131 11 1001 9801 1,7501 131 1 I " " I ' " I " I " I " 1 I I I " I I REPORTING I I hU-bEh LABQ VARIES-SEE LABORATORY REPORTS I -9 1 1- 21.09 1 Do- 282.08 I - - - - - I N U I I I I D D I I D I 1 D 403.17 42204 719.85 0.00 283.32 NO NO NO NO NO I NO NO NDI ND ND ND ND ND 7B ND ND ND NDI ND ND D ND IND ND-26-04 722.22 0.00 280.95 56 NO NO NO NO NO ND ND ND NO NO NO 8-36M 723.50 0.00 279.67 - - - _ _ _ M 10.27-04 123.87 0.00 279.50 ND ND ND ND ND ND ND ND ND ND ND ND ND 21 ND ND D NO N 2-21-05 119.98 0.00 283.19 ND ND ND ND ND ND ND ND ND ND ND ND ND 20 ND ND ND NO O 429-05 119.26 0.00 283.81 ND D O NO NO ND P 7-26-05 122.45 0.00 280.72 ND D ND ND ND NO O 10.27-05 121.80 0.00 287.37 ND ND ND ND ND ND R 1-24-08 118.00 0.00 28517 NO NO NO NO NO NO NO NO NO NO NO NO S 42406 NM A A NS - - - _ _ - - - - - - - - - - - T -2406 117.92 0.00 2852 ND NO NO NO NO NO NO NO NO NO_ _ 10.1646 119.451 0.00 28172 ND NO NO NO NO ND NO NO NO NO - V _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1-15-07 116.10 0.00 287.07 NO- ND NO NO ND NO ND NO NO NO NO - W 412-07 117.05 0.00 286.12 ND NO ND ND NO ND NO NO NO NO NO - X _ _ _ _ 7-17-07 118.92 0.00 286.251 NO D D NO NO NO ND NO NO NO NO - Y _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 10.11-07 120.45 0.00 282.72 NO NO D ND ND NO NO NO NO NO NO - Z _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 2-18-08 NM 0.00 NIA AA _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 415-08 NM 0.00 WA BB _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 8-12-08 NM 0,00 WA CC - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 12-30-08 134.32 0.011 268.851 NO NO ND NDI ND NO NO NO NO NO NO - DD -10 1- 9.61 ,0 0 0 .0 0 0 ,00 D D 40 6 D 420 D D 403.27 426-04 112.85 0.00 290.42 40,000 2,500 9,000 1,500 6,800 44,000 NO NO ND NO ND NO ND ND ND ND ND ND ND NO ND ND . 2.700 ND 7-20-04 115.07 0.00 288.20 B,000 NO 11.000 NO 7,500 51.000 NO NO NO ND NO NO M 8-30-04 115.25 0.00 288.02 M 70.22-04 116.65 0.00 286.621 60,0001 1.400 5.000 890 6.200 29.000 24.000 NO ND NO ND NO ND ND D NO ND 700 N 2-21-05 112.78 0.00 290.49 63,000 760 2.300 380 3,400 3,500 17,000 NO NO NO NO NO NO NO ND ND ND ND O 5-2-05 111.95 0.00 291.321 50,000 00 1.300 330 21800 46,000 37.000 P _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ -2605 115.30 0.00 287.97 78,000 1.200 5.400 820 5,400 60,000 26.000 O _ _ _ _ 10.27-05 114.35 0.00 288.92 48,000 170 270 94 920 47.000 39.000 R _ 1-24-06 110.50 0.00 292.T71 12,000 110 140 81 620 7,600 3,300 NO NO NO NO NO S 425-06 108.40 0.00 294.87 13.000 120 350 110 920 17.000 8,800 NO ND NO T •7-26-08 110.66 0.00 292.87 37,000 30 95 62 390 31.000 10.000 NO ND 25 _ 10.17-06 111.92 0.00 291.351 26.000 1 62 750 83 540 8.900 - 4.700 NO NO 2 1-16-07 108.45 0.00 294.821 10.000 160 62 2001 4501 3.000 5.800 2.200 NO NO NO W _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 4-13-07 109.90 0.00 293.37 3,600 25 21 68 130 2.900 2.400 NO NO ND ND 7-17-07 110.20 0.00 293.071 80 NO 0.69 2.7 7.8 NO 8.5 NO NO NO ND 10.11-07 11421 0.00 289.06 230 0.94 15 79 39 8.3 11 NO NO ND NO Z 2-18-08 it .07 0.00 288.20 8.400 18 340 240 2.300 270.0 190 NO NO ND NO AA 415-08 71722 0.00 286.05 5.000 6.4 350 180 1.600 NO NO NO NO ND NO BE 8-1208 120.08 0.00 283.19�� ND NO NO ND ND 9.8 - - - - 10 ND NO ND ND 10.31-08 127.501 0.00 275.'771 NO NO NDI NO NDI ND ND ND ND ND ND DD TABLE 1. SUMMARY OFGROUNDWATER ANALYTICAL RESULTS FOR ORGANIC COMPOUNDS DOWNTOWN CHEVRON SERVICE STATION,BAKERSFIELD.CALIFORNIA ocnLOROo- DEPLN io FLOATPlO AM RTIONE 13a 13A 13.E 13,5 WELL m AND AM OR01R1P RROOUCf WATER TPH AS ENZEN TOTAL ENZEN TOTAL t3- TWWE EiORiORVL PJBOPROPYL NARL N-PROPYL TRICI60R0 TELEVATION' ELEVATgN 01140LPff BEt♦fft� TOLIIEI� BENgt1E %YLEIgS MTBE BQ'IIEtg TOLUENE BENgNE IMENEB MfBE TBA OBE ETBE TAME OCA EDB ACETONE (CFGt� BQQEILE ToLUEHE Y®1( TWYFIS BflQENE BENZENE � BEN2FM VOCB(fW4ASL) (1AY) (foal-reSLl 040 Ug10 O+cO 041) 040 O+vS WW7 04M 04v0 U4'8 04VA OWO 04M(wm U4A) OaB) O+WO Ua'0 Ua'0 (fVB) 04'0 040 UW) OAYO (RWO 04'0 OIW) 8250 R TITLE 22 DRINKING I I 1001 6801 1 7501 131 11 1001 6801 1.7501 31 I I " I I I 1 1 1 1 1 I I REPORTING I ORATAY REPOA -1 1110.45 0.0 9. I 1 1 3 0 -I I D 1301 3. 1 1 1 I 403.23 4-26-04 0.00 290.381 8.100 NO NO NO 2.400 3.400 ND D NO ND NO ND ND NO ND ND NO ND ND ND NO 8201 340 NO L 7-20-04 1 0.00 288.021 14.000 ND ND 280 320 5.0001 ND D ND ND ND ND M _ 8-3004 0.00 287.481 M 10.22-04 0.00 288.651 8,400 NO NO 74 2301 4.300 3.700 ND O ND NO NO NO ND DI 160 ND NO N 2-21-05 0.00 290.481 12.0001 NO NO ND ND 14.000 13,000 ND O ND NDI NO NO ND O D NDI ND O 5-2-05 0.00 291.33 12.000 5.8 NO 13 190 34.000 24.000 P 7-26-05 0.00 289.33 3.000 ND NO NO NO 1.500 11,000 0 _ 16-27-05 0.00 285.78 24.000 ND ND ND ND 17,000 13,000 R 1-24-06 5 0.00 292.78 7.500 1.5 NO 1.7 86 3.900 2200 ND D 4.3 ND ND S _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 4-2506 108.43 0.00 294.80 810 NO 0.8 0.7 24 81 491 NO NO NO T _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 7-26-06 110.80 0.00 292.43 1.400 NO NO NO 2.8 26 NO NO O NO_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 10.18-08 112.00 0.00 291.23 500 ND ND ND 0.68 250 90 ND ND ND _ 1-16-07 108.55 0.00 294.68 62 NO ND ND ND 49 35 O NO NO NO W 4-13-07 110.10 0.00 293.13 810 NO ND 1.8 ND 830 1,100 400 ND O D X 7-17-07 110,45 0.00 292.78 ND ND ND NO ND NO 1.4 NO NO NO NO Y _ 10.11-07 111.70 0.00 288.53 NO ND ND NO ND NO ND ND NO O NO 2 _ 2-18-08 115.31 0.00 287.92 NO ND ND ND - 1.8 ND O NO NO O NO AA _ 415-08 117.88 0.00 285.35 NO ND NLI ND ND NO ND D ND ND ND BB _ 8-12-08 124.60 0.00 278.83 NO NO NO ND ND NO ND D ND D ND CC 10.31-08 DRY 0.00 WA - OD 3 13.3 .00 69. D I D WN 40708 10.21-04 137.05 0.00 270.03 NO ND NO NO NO ND ND D ND ND D ND 2-18-05 131.88 0.00 275.20 ND NDI ND NO ND ND D ND ND ND NO NO ND ND NO NO O 5-2-05 130.78 0.00 276.30 NO ND ND NO NO NO P 7-25-05 134.15 0.00 272.93 ND ND ND ND ND NO 0 _10-26-05 135.30 0.00 271.78 NO ND ND ND NO NO 1-23-08 130.72 0.00 276.36 ND NO NO NO NO NO NO ND O N S 4-24-06 128.80 0.00 278.28 ND ND ND ND NO NO NO NO - T 7-24-06 131.45 0.00 275.63 NO ND ND N NO NO NO NO 10-16-06 131.88 0.00 275.20 NO NO NO ND NO NO NO NO - V _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _1-16-07 128.90 0.00 278.18 NO NO -NO NO NO ND NDI D ND - 442-07 129.90 0.00 277.18 NO NO NO NO NO NO ND NO NO - X P7-1�U7 129.53 0.00 277.55 NO ND ND ND ND ND ND ND ND ND ND - Y 274.23 ND NO ND NO ND ND ND ND ND ND ND - 132.21 0.00 274.87 ND NO NO ND NO NO NO NO ND D NO 134.11 0.00 272.97 ND NO NO NO ND ND NO NO ND NO NO BB 140.81 0.00 266.27 ND NO NO NO NO ND ND ND ND NO NO CC 143.40 0.00 263.68 NO NO NO I NO NO NO ND NO NO NO NO DD _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 3 3.2 0.00 .90 D D D D D D D D D 40562 10.21-04 140.46 0.00 265.16 NO ND ND ND ND ND ND ND ND ND ND ND ND 4.3 ND ND ND ND N 2-18-05 138.75 0.00 268.87 NO NO NO NO NO 1.8 NO ND ND NO ND ND NO NO NO NO NO ND O 5-2-05 135.04 0.00 270.58 NO NO NO ND ND 4.2 3.8 P -26-05 137.55 0.00 268.07 NO NO NO NO NO NO 0 10.26-05 139.20 0.00 266.42 NO ND NO NO NO NO R 1-23-06 135.31 0.00 270.31 ND NO NO NO ND 1.7 ND ND NO NO ND ND S 424-06 133.12 0.00 272.50 NO ND NO NO NO 1.1 NO NO NO ND T _ _ _ _ _ _ _ 7-24-06 135.25 0.00 270.37 ND NO NO NO NO NO NO ND NO NO U _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 10-16-06 138.25 0.00 269.37 NO - - - - - NO NO NO NO NO NO ND NO ND - - - - - - - - - - - - - - V 1-15-07 133.55 0.00 272.07 NO ND ND ND NO NO NO NO ND�D NO ND ND ND ND ND ND NO ND ND NO NO NO NO NO NO NO NO W 4-16-07 134.25 0.00 271.37 NO NO NO NO NO NO ND ND ND NO NO X 116-0 133.45 0.06 272.17 ND NO ND ND NO ND NO ND ND NO ND y 10.10-0 136.67 0.00 268.95 ND NO ND ND ND ND ND NO NO NO ND 2-15-08 136.34 0.00 26928 NO NO NO ND NO ND NO NO NO NO ND 414-08 137AII 0.00 288.11 ND ND NO ND ND ND ND NO NO NO ND 8-11-08 143.81 0.00 261.81 ND NO ND ND NO ND ND ND NO NO ND 10.30-08 146.30 0.00 259.32 NO NO NO ND ND ND NO NO NDI NO NDI - TABLE 1. l SUMMARY OFGROUNDWATER ANALYTICAL RESULTS FOR ORGANIC COMPOUNDS DOWNTOWN CHEVRON SERVICE STATION,BAKERSFIELD.CALIFORNIA qC 40ROD DE-TO FLOATING GROUND tIA L3,3 WF}Lm AND ale (3ROIRd1 FROpCT WATER TRI AS - -(p TOTK ETHYL. TOTK 13- TNAFE LSCPRORYL PSORROV}L NAR4 N-PROPYL TRId6DR0 TRIG60R0 TWEiNYL TRPETMYL O3MFA ELEVATION• SAMPLED WATER TNCIWE55 EIEVATKk! GISOIRlE BEIIIENE TOIUEM EQRE'NE %YLEt�9 MiBE BENiEFlE TOLUEIE BEllffFE %YLEFII:S YTBE T6A C� ETBE TAME OG EDB ALETOtE (CFG13) EEIQQ� TOLUElE Y1EI( TNKENE EFIQEI� EQQENE pEwcuF BEIQENE BE3IIEFE VOCS REF (h_MSL) (1LG) It«L) (hatJABL) (810 9+W8 bt44) W) (1,911) DAYS (RG'D (WA (w8 (Pam OW8 (Pam "m UANI (4011) OIG'1) (WD 014111 (IAY9 (mm m (WWI) NG'A (W1) (I m m 9174) w T O I 801•• 02 260 0 I C R R E C I I 1 OI BOI 1,7501 1 I 11 1 680 I 1,7501 131 I I I I I '• I I I I I I I O TI G E O - O OR PO S 265.651 1 1 I I I I D D 404.80 10-21-04 139.42 0.00 265.381 ND NO ND NO NO NO NO NO NO NDI NDI NO ND 8.8 1 NO ND) I NDi I NO N 2-21-05 134.00 0.00 2 0.60 ND NO NO ND NO NO ND D ND NO ND ND ND 8 NDI ND ND ND O 5-2-05 132.48 0.00 272.321 NO NDI NO NDI NO ND P 1-25-05 134.50 0.00 270.30 NO NDI NO I ND ND ND Q _ 10-26-05 138.5 0.00 26825 NO NO NO NO NO ND R _ i-24-06 132.62 0.00 272.18 NO NO ND NO NO NO ND D ND NO NO NO S 4-25-06 130.01 0.00 274.801 NO NO NO NO NO NO NO NO ND NO 1 1 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _NO -NO NO NO NO 10-18-06 ND NO ND 03 1 _ 1 _ 1 _ _ _ NO 1.1 I I D 1 D _ _ _ _ _ _ _ _ _ _ _ _ _ _ 7 D I N 4B _ _ _ _ 1 D lTlo:or 33.70 000-1 768Bi- ND' -N _ _ _ _ D N 1 .1 A6D _ _ _ _ 1 _ _ _ _ _ _ _ _ _ _ _ _ _ _ AcuA c u 1 11 1 .11 2556Q1- DIN I _ _ _ _ DI I _ tw-I 1-30-04 3.201 0.001 2 9.961 69.0 111 403.22 .0 - - - - - .0 5510 0 ,40 _ 1 - - - I O I ,60 ND O O a NO NNNO O O -1 1 .1 8T11 1 - - - - - 1 N 1 1 1 87�7T�:80� - - - - - 1 13 b ,4 I - - Z - - - - - - - - - - 1 21.0 - - - - _ 2 ,4 b _ - - - - - 1 1 1. 3. _ _ 1 _ _ _ ,60 _ _ _ _ _ _ 1 1 .0 - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ J1W 1 4. 8. 1 - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _1 _ - _ _ I 1 6 1 .1 29S _ _ _ _ _ 1 7 15,200.0 92 _ _ _ _ _ 1 18 1 1 111. 91. _ _ _ _ _ 1 _ _ _ _ _ _ _ _ _ _ _ _ _-1 1 .0 .4 1 1 , _ _ _ _ _ _ _ _ _ _ _ _ _1 1 9. .0 93, D - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _-1 1 933 .1 _ _ _ _ '1 1 .0 89.87 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ -1 -1 4. 8 4 _ _ _ _ 1 1 B. .0 1 _ _ _ _ 1 1 4.1 .0 8. 1 _ _ _ _ 1 16-38 .0 _ _ _ _ I 1 _ _ _ _ _ _ _ _ _ _ _ _ _ _ 403.69 1.30-04 112.711 0.00 290.98 I 1 - - I 1 .1 - 1 - - - I - I K 403.40 1.30-04 114.110I 0.00 288.60 I 1 - I - I I I I I I - - I - - - 1 I K 403.21 1-30-04 111291 0.00 289.92 I � - I - - 1 - - - 1 I I - K 40112 1 1-3044 NMI 0.00 N/A -I - - - I - I - 1 - 1 1 1 - 1 1 1 1 F K TABLE 1. , SUMMARY OFGROUNDWATER ANALYTICAL RESULTS FOR ORGANIC COMPOUNDS DOWNTOWN CHEVRON SERVICE STATION,BAKERSFIELD,CALIFORNIA GLIILOR06 DEPTH TO ROATaq OROUr@ M1LOI1ROrE- tI? t�A 1),A t]p WELL ID Afm WTE G0 PROprrOT WATFR TMAS ETHY4 TOTAL ETHYL- TOTAL tj- 1lVNE tlOPROPYL PiSIMfiOPYL N11Pr1- N-PROPYL TRICXLORO TRIQ60R0 TRG".. TRt.1ETNYL Or1ER ELEVATION lilllaiEO WATER TMa]piEa9 ELEVATION oASaa¢ BENZENE TOLUENE eENrENE %YlFta:3 MIKE BENgtE TOLUENE BErCENE XYlENE9 MLSE Tat DRE ETSE TAME DCJL EDB ACETONE 0C 12) BENZEIE TOLIIEIg MaiK THALEfE eElt<ffNE BENZENE BEN2f1E 9Erffiff eEt4tEtE VOCS REF (fM-MSL) Bbl) (ha) (IW-MSL) (MM 6Vfl) WC'71 (-M (MA1 (p7A1 (�) (Wp UAVp pr1'7) p+aal 6*M (VgA)(yelp (MM (I1o4) w (MM (MM Oat) (PW>1 (MM w (LIgR) (MIp (Ilgq w (M'0 EPA E O 0 1 0 CCR ThIl 1 11 001 IS I 1 1 1,750i 13i I « 1 I I I I I I OT S O LABORATORY ORS TRIP « I' » I •• I BLANKI 10-30-081 WAI WAI WAI NDI NDI NDI NDI NDI NDI 1 I I re...C." -Not app C8 e. = o -= o analyzed. - - - - - - - - - - - - - - - - - - 'Measured to the top of the Well casing. «No CCR Title 22 MCL established. A e Holguin.Fahan d Assodates.Int.'s(HFA'e)report dated June 25,2001. B e HFA's report dated February 19,2002. C-HFA's report dated May 29,2002. D•Central Slens Environmental.LLC's(CSE's)report dated September 10,2002. E e CSE's report dated November 14,2002. F-CSE's report dated March 3,2003. G-CSE's report dated Ap111 13,2003 H-CSE'e report dated August 22.2003 I-CSE's report dated October 20,2003. J-CSE's report dated February 3,2004. K-CSE's report deed May 13,2004.- L•CSE's report dated September 24,2004. M-CSE's report tlated November 19,2004. - N•CSE's report dated March 7,2005. O-CSE's report dated ADn1 13,2005. P e CSE's report dated July 18,2005, 0-CSE's report dated October 20,2005. R,CSE's report dated February 15,2006. _ S e CSE's report dated July 10,2006. T e CSE's report dated August 9,2006 U-CSE's report dated November 2,2006. V e CSE's report dated January 30,2007. W-CSE's report doted April 30.2007. X,CSE's report dated July 31,2007. V-CSE's report dated October 15.2007 - Z-CSE's report dated January 17.2007 AA-VEIR's report dated April 29,2008. BB•VEIR's report dated July 23,2008. CC•VEIR's report dated October 6,2008. DD•VEIR Corp's current report. TABLE 2. SUMMARY OF GROUNDWATER SAMPLE ANALYTICAL RESULTS FOR PHYSICAL AND CHEMICAL CHARACTERISTICS DOWNTOWN CHEVRON SERVICE STATION,BAKERSFIELD,CALIFORNIA WELL ID DEPTH TO FLOATING GROUND- AND DATE GROUND- PRODUCT WATER ELEVATION* SAMPLED WATER THICKNESS ELEVATION TDS EC pH CHLORIDE SULFATE NITRATE CALCIUM MAGNESIUM SODIUM POTASSIUM HYDROXIDE CARBONATE BICARBONATE TKN REF feet-MSL feet feet-MSL m umhos/cm H units m (mg/l m A m A m A (mg/I (m g/1) (mg/I m (mg/l m /I EPA ANALYTICAL METHOD 160.1 9050 1 9040 300.0 6010 310.1 351.2 WA REPORTING LIMIT VARIES-SEE LABORATORY REPORTS N/A VW-1d 403.81 3 28-02 114.54 0.25 289.27 1382 951 7.38 93 82 2.1 120 21 44 5.1 ND ND 350 0.8 A MWA 3-28-02 114.53 0.00 289.13 664 7.12 46 68 40.4 79 14 39 4.1 ND ND 200 0.71 A 403.66 6-22-02 120.02 0.00 283.64 490 6.6 30 51 18 76 23 37 18 ND ND 140 NO B MW-2 3-28-02 113.30 0.00 290.15 576 7.21 31 74 46.3 66 12 39 3.8 ND ND 160 0.8 A 403.45 8-22-02 •118.72 0.00 284.73 550 6.7 33 66 38 71 17 37 11 ND NO 140 NO B MW-3 3-28-02 113.30 0.00 289.84 576 7.21 31 74 46.3 66 12 39 3.8 ND ND 160 0.8 A 403.14 8 22-02 118.84 0.00 284.30 480 6.7 25 59 38 97 25 37 16 ND ND 140 ND B REF=Report reference. NIA=Not applicable. ND=Not detected. 'Measured to the top of the well casing. A=Holguin,Fahan&Associates,Inc.'s,report dated May 29,2002. B=Central Sierra Environmental,LLC's report dated November 14,2002. J A TABLE 3. SUMMARY OF VAPOR SAMPLE ANALYTICAL RESULTS DOWNTOWN CHEVRON SERVICE STATION, BAKERSFIELD, CALIFORNIA SAMPLE DATE TPH AS ETHYL- TOTAL SOURCE SAMPLED SAMPLE ID GASOLINE BENZENE TOLUENE BENZENE XYLENES MTBE (ppmv) my my my ( my) (ppmy REF EPA ANALYTICAL METHOD 8015(M) 8020 1 N/A DETECTION LIMIT 1 0.11 0.11 0.1 0.11 0.1 N/A INFLUENT 10-10-02 0210153-1 5,5001 581 2901 32 2201 1,9001 A EFFLUENT 10-10-02 0210153-2 NDI NDI NDI ND NDI 0.311 A INFLUENT 12-12-02 0212180-1 8,6001 1101 3201 441 2601 2,2001 A INFLUENT 2-21-03 1 0302259-1 1 11,0001 1201 1901 1001 2901 1,4001 B EFFLUENT 2-21-03 0302259-2 NDI ND NDI NDI NDI ND B INFLUENT 6-25-03 0306310-1 ( 3,800 161 1501 341 2011 4801 C INFLUENT 10-21-03 1 0310240-1 1 1,1001 41 391 8.61 651 1801 D EFFLUENT 10-21-03 1 0310240-2 1 NDI NDI NDI NDI NDI NDI D INFLUENT 11-12-03 1 0311114-1 1 3,4001 141 1501 281 2101 680 D INFLUENT 12-28-03 1 0312351-1 9101 2.51 291 7.31 511 110 D EFFLUENT 12-28-03 1 0312351-2 1 NDI NDI ND NDI NDI ND D INFLUENT 3-29-04 1 0403358-1 1 3301 0.81 13 2.11 301 130 E EFFLUENT 3-29-04 0403358-2 NDI NDJ ND NDI NDI ND E INFLUENT 5-27-04 0405368-1 3001 0.581 31 0.751 151 831 F INFLUENT 6-30-04 0407003-1 201 NDI 0.31 NDI 0.971 ND F EFFLUENT 6-30-04 1 0407003-2 NDI NDI NDI NDI NDI ND F INFLUENT 8-26-04 1 0408426-1 1901 0.321 0.641 0.131 3.61 661 G INFLUENT 9-30-04 1 0410016-1 591 0.11 NDI NDI 0.151 121 G INFLUENT 11-19-04 0411271-1 3801 NDI 1.61 0.61 9.61 110 H INFLUENT 12-27-04 0412320-1 1601 0.161 4.61 1.41 7.41 1.5 H INFLUENT 1-27-05 1 0501339-1 1 5501 0.391 71 1.71 261 97 I INFLUENT 2-21-05 1 0502268-1 1 261 NDI 0.491 0.141 2.91 7 I INFLUENT 3-24-05 1 0503336-1 1 NDI NDI NDI NDI NDI 0.38 I INFLUENT 4-22-05 1 0504300-1 1 4601 0.911 121 4.1 421 140 J EFFLUENT 4-22-05 1 0504300-2 1 NDI NDI NDI NDI NDI NDI J INFLUENT 5-25-05 1 0505328-1 1 3301 NDI 8.51 3.21 381 701 J INFLUENT 6-27-05 1 0506364-1 1 2701 ND 6.71 2.61 32 39 J INFLUENT 9-26-05 0509384-1 1 431 0.111 0.341 NDI 2.41 NDI K INFLUENT 12-20-05 0512261-1 1 4701 0.221 2.7 3.71 571 371 L INFLUENT 3-27-06 0603381-1 1001 NDI 0.711 0.651 141 421 M INFLUENT 1 5-31-06 1 0605418-1 1 381 NDI 0.161 0.141 31 261 N INFLUENT 1 7-27-06 1 0607385-1 1 171 NDI NDI NDI 0.371 2.1 O INFLUENT 8-30-06 1 0609074-1 361 NDI NDI NDI 0.31 7.21 0 INFLUENT 7-24-07 1 207380-1 1 15.8661 NDI NDI ND 0.5471 6.694 P EFFLUENT 7-24-07 1 207380-2 1 4.7511 NDI NDI NDI 0.4391 10.315 P INFLUENT 9-26-07 1 207503-1 1 25.611 0.0681 0.19481 0.08871 1.76941 10.5342 P INFLUENT 12-18-07 1 207674-1 19.7871 NDI NDI NDI 1.14041 7.2701 0 INFLUENT 4-29-08 1 208235-1 71.2771 NDI 0.1451 NDI 1.2051 5.296 R INFLUENT 6-25-08 208360-1 265.27 0.1051 1.2931 0.5911 10.4971 7.291 R INFLUENT 8-13-08 208457-1 32.451 0.00811 0.00561 0.00591 0.12481 0.2868 S EFFLUENT 8-13-08 1 208457-2 0.031 NDI 0.02891 NDI NDI ND S TABLE 3. SUMMARY OF VAPOR SAMPLE ANALYTICAL RESULTS DOWNTOWN CHEVRON SERVICE STATION, BAKERSFIELD, CALIFORNIA SAMPLE DATE TPH AS ETHYL- TOTAL SOURCE SAMPLED SAMPLE ID GASOLINE BENZENE TOLUENE BENZENE XYLENES MTBE ( my) (Ppmy my ( my) (p my) ( my) REF EPA ANALYTICAL METHOD 8015(M) 8020 N/A REF= Report reference. N/A=Not applicable. ND=Not detected. A=Central Sierra Environmental, LLC's(CSE's) report dated March 3,2003. B=CSE's report dated April 13, 2003. C=CSE's report dated August 22,2003. D=CSE's report dated February 20,2004. E=CSE's report dated May 12,2004. F=CSE's report dated September 24,2004. G=CSE's report dated November 19,2004. H=CSE's report dated March 7, 2005. 1 =CSE's report dated April 13,2005. J =CSE's report dated July 18,2005. K=CSE's report dated October 20,2005. L=CSE's report dated February 15,2006. M=CSE's report dated July 10, 2006. N=CSE's report dated August 9,2006. O=CSE's report dated November 2,2006. P=CSE's report dated October 15,2006. Q=CSE's report dated January 16,2008. R=VEIR's report dated July 23,2008. S=VEIR's report dated October 6, 2008. TABLE 4. SUMMARY OF VES MONITORING DATA DOWNTOWN CHEVRON SERVICE STATION,BAKERSFIELD,CALIFORNIA Cumulative Cumulative Cumulative Cumulative Outlet Inlet Dilution Feld Feld Reduction Cumulative lbs. Cumulative Cumulative Date Calendar Operating Operating Operating Operating Temper- Flow MW-1 V-1s V-1i V-1d V-2 V-3 V-4 MW-10 MW-11 Air TPH In TPH Out Efficiency Total lbs. Lbs. Destroyed Lbs. Gallons Monitored Days Hours Hours Days Weeks ature(°F) (sctm) (valve) (valve) (valve) (valve) (valve) (valve (valve (valve (valve (valve) (ppmv) (ppmv) (>90%) Extracted Extracted per evert Destroyed Extracted 1041412 1 0 0 0 0 1,450 175 • • • PO • • • PO 4,500 10 100% 0.00 0.00 0.00 0.00 0 10-10-02 2 15 15 1 0 1,470 205 • • • PO • • • PO 5,500 10 100% 187.01 187.01 26722 26722 29 10.15-02 7 62 77 3 0 1,455 235 • • • PO • • • PO 5,775 10 100% 1,106.68 1,293.68 1,329.61 1,596.83 202 10-18-02 10 39 116 5 1 1,470 250 • • • PO • • • PO 5,920 10 100% 837.91 2,131.59 912.14 2,508.96 333 10-22-02 14 52 N438 7 1 1,435 225 • • • PO • • • PO 6,235 10 100% 1,218.36 3,349.95 1,152.90 3,661.86 523 1424-02 16 25 8 1 1,460 230 • • • PO • • • PO 6,530 10 100% 555.23 3,905.18 593.45 4,255.31 610 1030-02 22 75 11 2 1,450 215 • • • PO • • • PO 6,745 10 100% 1,78326 5,688.44 1,719.11 5,974.42 889 11-1-02 24 26 12 2 1,465 235 • • • PO • • • PO 6,950 10 100% 596.91 0,285.35 67123 6,645.66 982 11802 29 63 15 2 1,440 205 • PO • O • • • PO 7,120 10 100% 1,628.94 7,914.29 1,453.55 8,099.21 1,237 11-8-02 31 29 16 2 1,485 240 • PO • O • • • PO 7,280 10 100% 670.11 8,584.39 800.97 8,900.19 1,341 11-12-02 35 52 18 3 1,460 265 • PO • O • • • PO 7,445 10 100% 1,438.33 10,022.72 1,621.84 10,522.03 1,566 11-15-02 38 39 20 3 1,455 220 • PO • O 1 • • • PO 7,535 10 100% 1,218.11 11,240.83 1,022.04 11,544.07 1,756 11-18-02 41 37 514 21 3 1,490 215 • PO • O • • • PO 7,680 10 100% 971.00 12.211.83 965.85 12,509.91 1,908 11-21.02 44 40 554 23 3 1,470 230 • PO • O • • • PO 7,825 10 100% 1,045.61 13,257.45 1,138.13 13,648.04 2,071 11-25-02 48 53 607 25 4 1,435 205 • PO • O 4111 • • PO 8,060 10 100% 1,510.08 14,767.53 1,384.52 15,032.56 2,307 11-30-02 53 62 669 28 4 1,450 225 • PO • 0 • • • PO 8,175 10 100% 1,621.78 16,389.31 1,803.05 16,835.61 2,561 123-02 56 0 669 28 4 1,465 240 • PO • O • • • PO 8,320 10 100% 0.00 16,389.31 0.00 16,835.61 2,561 12802 59 39 708 30 4 1,440 210 • PO • O • • • PO 8,455 10 100% 1,232.85 17,622.16 1,094.86 17,930.47 2,753 12-10-02 63 52 760 32 5 1,485 195 • PO • O • • • PO 8,525 10 100% 11461.67 19,083.83 1,366.77 19,297.24 2,982 12-12-02 65 28 788 33 5 1,460 235 • PO • O • • • PO 8,600 10 100% 736.88 19,820.71 894.74 20,191.98 3,097 12-16-02 69 50 838 35 5 1,450 220 • PO • O • • • PO 8,475 10 100% 1,599.74 21,420.45 1,474.00 21,665.98 3,347 12-19-02 72 41 879 37 5 1,465 215 PO PO • O • • • PO 8,135 10 100% 1,210.20 22,630.65 1,133.76 22,799.74 3,536 12-2402 77 64 943 39 6 1,455 235 PO PO • O • • • PO 7,955 10 100% 1,772.10 24,402.75 1,891.55 24,691.29 3,813 12-26-02 79 27 970 40 6 1,465 255 PO PO • O • • • PO 7,550 10 100% 799.07 25,201-.82 821.78 25,513.07 3,938 12-30-02 83 52 1,022 43 6 1,460 240 PO PO • O • • • PO 7,230 10 100% 1,584.90 26,786.72 1,426.35 26,939.42 4,185 1403 88 61 1,083 45 6 1,465 235 PO PO its O • • • PO 7,465 10 100% 1,675.68 28,462.41 1,691.69 28,631.11 4,447 1-7-03 91 40 1,123 47 7 1,470 245 PO PO • O 0 • • PO 7,615 10 100% 1,110.89 29,57329 1,179.78 29,810.89 4,621 1-9-03 93 26 1,149 48 7 1,485 250 PO PO • O • • • PO 7,750 10 100% 767.93 30,341.22 796.40 30,607.29 4,741 1-14.03 98 65 1,214 51 7 1,460 225 PO PO • O • • • PO 8,025 10 100% 1,993.73 32,334.95 1,855.56 32,462.85 5,052 1-17-03 101 38 1,252 52 7 1,455 230 PO PO • O • • • PO 8,450 10 100% 1,086.23 33,421.19 1,167.70 33,630.56 5,222 1-20-03 104 40 1,292 54 8 1,490 215 PO PO • O • • • PO 8,795 10 100% 1,230.71 34,651.90 1,195.96 34,826.52 5,414 1-23-03 107 42 1,334 56 8 1,470 235 PO PO • O • • • PO 9,230 10 100% 1,257.29 35,909.19 1,440.56 36,267.08 5,611 1-27-03 111 49 1,383 58 8 1,435 205 PO PO • O • • • PO 9,630 10 100% 1,682.59 37,591.78 1,529.69 37,796.77 5,874 1-30-03 114 39 1,422 59 8 1,450 240 PO PO • O • its • PO 9,875 10 100% 1,218.87 38,810.65 1,461.70 39,258.47 6,064 2-3-03 118 52 1,474 61 9 1,485 265 PO PO • 0 • • • PO 10,080 10 100% 1,951.03 40,761.68 2,196.68 41,455.14 6,369 2-7-03 122 49 1,523 63 9 1,440 220 PO PO • O • • • PO 10,345 10 100% 2,072.12 42,833.79 1,763.65 43,218.79 6,693 2-10-03 125 38 1,561 65 9 1,485 215 PO PO • O • • • PO 10,530 10 100% 1,369.14 44,202.94 1,360.57 44,579.36 6,907 2-14-03 129 51 1,612 67 10 1,460 230 PO PO • O • • • PO 10,645 10 100% 1,827.89 46,030.82 1,974.79 46,554.15 7,192 2-17-03 132 37 1,849 69 10 1,450 205 PO PO • O • • • PO 10,870 10 100% 1,434.13 47,464.95 1,303.97 47,858.13 7,416 2-21-03 136 54 1,703 71 10 1,465 225 PO PO • O • • • PO 11,000 10 100% 1,904.97 49,369.92 2,113.78 49,971.91 7,714 2-25-03 140 0 1,703 71 10 1,455 240 PO PO • O • • • PO 10,750 10 100% 0.00 49,369.92 0.00 49,971.91 7,714 2-28-03 143 39 1,742 73 10 1,465 210 PO PO • O • • • PO 10,685 10 100% 1,592.93 50,962.85 1,384.00 51,355.90 7,963 3403 147 50 1,792 75 11 1,475 200 PO PO PO O 0 • • PO 10,650 10 100% 1,776.13 52,738.99 1,684.31 53,040.22 8,240 3-7-03 150 42 1,834 76 11 1,485 235 PO PO PO O • • • PO 10,580 10 100% 1,416.25 54,15524 1,651.50 54,691.71 8,462 3.11-03 154 49 1,883 78 11 1,490 220 PO PO PO O • • • PO 10,535 10 100% 1,928.69 56,083.93 1,796.08 56,487.79 8,763 3-14-03 157 41 1,924 80 11 1,480 215 PO PO • O PO • • PO 10,475 10 100% 1,504.36 57,58829 1,460.31 57,948.10 8,998 3-18-03 161 50 1,974 82 12 1,485 235 PO PO • O PO • • PO 10,415 10 100% 1,782.68 59,370.98 1,935.38 59,883.47 9,277 3-21-03 164 39 2,013 84 12 1,475 255 PO PO • O PO • • PO 10,380 10 100% 1,511.14 60,882.11 1,632.57 61,516.04 9,513 3-2403 167 40 2,053 86 12 1 1,480 245 1 PO PO • O • PO • PO 10,335 10 100% 1,676.14 62,55825 1,601.78 63,117.82 9,775 3-28-03 171 49 2,102 88 13 1,470 250 PO PO • O • PO 6 PO 10,290 10 100% 1,964.20 64,522.45 1,993.50 65,111.32 10,082 3-31-03 174 41 2,143 89 13 1,465 240 PO PO • O • PO • PO 10,275 10 100% 1,669.75 66,192.19 1,598.97 66,710.28 10,343 43-03 177 38 2,181 91 13 1,485 235 PO PO PO O • • PO PO 10,125 10 100% 1,483.50 67,675.70 1,429.89 68,140.17 10,574 47-03 181 54 2,235 913 13 1,470 225 PO PO PO O • • PO PO 9,975 10 100% 2,034.08 69,709.78 1,916.62 70,056.80 10,892 410-03 184 40 2,275 95 14 1,455 220 PO PO PO O • • PO PO 9,935 10 100% 1,42124 71,131.02 1,382.60 71,439.39 11,114 TABLE 4. SUMMARY OF VES MONITORING DATA DOWNTOWN CHEVRON SERVICE STATION,BAKERSFIELD,CALIFORNIA Cumulative Cumulative Cumulative Cumulative Outlet Inlet Dilution Feld Feld Reduction Cumulative Lbs. Cumulative Cumulative Date Calendar Operating Operating Operating Operating Temper- Flow MW-1 V-is V-1i V-1d V-2 V-3 V4 MW-10 MW-11 At r TPH In TPH Out Efficiency Total Lbs. Lbs. Destroyed Lbs. Gallons Monitored Days Hours Hours Days Weeks ature(*9 (sctm) (valve) (valve) (valve) (valve) (valve) (valve (valve (valve (valve (valve) (ppmv) (ppmv) (>90%) Extracted Extracted per event Destroyed Extracted 4-14-03 188 51 2,328 97 14 1,435 215 PO PO • O PO • • PO 9,855 10 100% 1,764.71 72,895.73 1,708.88 73,14825 11,390 4.17.03 191 37 2,363 98 14 1,450 230 PO PO • O PO • • PO 9,780 10 100% 1,241.11 74,136.84 1,316.16 74,464.40 11,584 4-21-03 195 11 2,374 99 14 1,465 205 PO PO • O PO • • PO 9,655 10 100% 391.72 74,528.55 344.29 74,808.70 11,645 4-24-03 198 42 2,416 101 14 1,440 225 PO PO • O • PO • PO 9,480 10 100% 1,316.04 75,844.59 1,416.65 76,225.35 11,851 4-28-03 202 53 2,469 103 15 1,485 240 PO PO • O • 1 PO • PO 9,225 10 100% 1,789.69 77,634.28 1,865.52 78,080.87 12,130 5-1-03 205 38 2,507 104 15 1,460 210 PO PO • O • PO • PO 8,950 10 100% 1,331.91 78,966.19 1,129.32 79,210.19 12,338 5E03 210 63 2,570 107 15 1,450 195 PO PO PO O • • PO PO 8,780 10 100% 1,874.54 80,840.73 1,705.49 80,915.68 12,631 5-9-03 213 41 2,611 109 16 1,465 235 PO PO PO O • • PO PO 8,445 10 100% 1,111.28 81,952.01 1,286.52 82202.19 12,805 5.13-03 217 49 2,660 111 16 1,455 220 PO PO PO O • 0 PO PO 8,110 10 100% 1,539.49 83,491.50 1,382.23 83,584.42 13,046 5-16-03 220 40 2,700 113 16 1,465 215 PO PO PO O PO • • PO 7,825 10 100% 1,129.84 84,621.33 1,063.90 84,648.32 13,222 5-20-03 224 49 2,749 115 16 1,460 235 PO PO • O PO • • PO 7,255 10 100% 1,305.06 85,926.39 1,320.61 85,968.94 13,426 5-23-03 227 41 2,790 116 17 1,465 255 PO PO • O PO • • PO 6,785 10 100% 1,106.63 87,033.02 1,12126 87,09020 13,599 52603 230 42 2,832 118 17 1,470 240 PO PO • O • PO • PO 6,235 10 100% 1,150.41 88,183.43 993.27 88,083.47 13,779 5.29-03 233 38 2,870 120 17 1,485 235 PO PO • O • PO • PO 5,890 10 100% 900.21 89,08164 831.18 88,914.65 13,919 530-03 234 16 2,886 120 17 1,460 245 PO PO • O • PO • PO 5,450 10 100% 350.60 89,434.24 337.56 89,252.21 13,974 6303 238 51 2,937 122 17 1,455 250 PO PO PO O • • PO PO 5,035 10 100% 1,078.06 90,512.30 1,014.16 90,266.37 14,143 6.5-03 240 29 2,966 124 18 1,490 225 PO PO PO O • • PO PO 4,855 10 100% 577.90 91,090.20 500.41 90,766.78 14,233 6-9-03 244 50 3,016 128 18 1,470 230 PO PO PO O • • PO PO 4,615 10 100% 864.68 91,954.88 83826 91,605.04 14,368 6-12-03 247 37 3,053 127 18 1,435 215 PO PO PO O PO • • PO 4,430 10 100% 621.75 92,576.62 556.55 92,161.59 14,465 6.16-03 251 52 3,105 129 18 1,450 240 PO PO PO O PO • • PO 4,225 10 100% 784.07 93,360.70 832.64 92,99423 14,588 6-19-03 254 42 3,147 131 19 1,465 245 PO PO • O PO • • PO 4,075 10 100% 674.22 94,034.91 662.10 93,656.33 14,693 6-23-03 258 50 3,197 133 19 1,460 230 PO PO • O • PO • PO 3,950 10 100% 790.27 94,825.18 717.19 94,373.52 14,816 6-25-03 260 25 3,222 134 19 1,470 235 PO PO • O • PO • PO 3,800 10 100% 359.56 95,184.75 352.44 94,725.98 14,873 6-30-03 265 64 3,286 137 20 1,475 240 PO PO • O • PO • PO 3,810 10 100% 904.78 96,089.53 923.88 95,649.84 15,014 7-2-03 267 27 3,313 138 20 1,460 225 PO PO • O • • PO PO 3,835 10 100% 390.85 96,480.38 367.80 96,017.64 15,075 7-11-03 276 113 3,426 143 20 1,450 220 PO PO PO O • • PO PO 3,795 10 100% 1,543.61 98,023.99 1,489.36 97,507.01 15,316 7-15-03 280 50 3,476 145 21 1,465 215 PO PO PO O • • PO PO 3,765 10 100% 660.87 98,684.87 638.92 98,145.93 15,420 7-18-03 283 37 3,513 146 21 1,440 235 PO PO PO O PO • • PO 3,730 10 100% 474.15 1 99,159.02 511.98 98,657.91 15,494 7-22-03 287 51 3,564 149 21 1,485 255 PO PO PO O PO • • PO 3,705 10 100% 707.72 99,866.73 760.62 99,418.53 15,604 D25- 290 42 3,606 150 21 1,460 240 PO PO • O PO • • PO 3,680 10 100% 628.19 100,494.92 585.55 100,004.08 15,702 294 50 3,656 152 22 1,455 235 PO PO • O PO PO • PO 3,655 10 100% 699.10 101,194.02 677.91 100,681.99 15,812 297 40 3,696 154 22 1,490 245 PO PO • O • PO • PO 3,680 10 100% 543.91 101,737.93 569.29 101,251.28 15,897 300 39 3,735 166 22 1,470 250 PO PO • O • PO • PO 3,720 10 100% 556.66 102,294.59 572.56 101,823.83 15,984 303 0 3,735 156 22 1,435 225 PO PO PO O • PO PO PO 3,685 10 100% 0.00 102,294.59 0.00 101,823.83 15,984 307 49 3,784 158 23 1,450 230 PO PO PO O • • PO PO 3,635 10 100% 643.17 102,937.77 646.64 102,470.48 16,084 310 40 3,824 159 23 1,465 210 PO PO PO O PO • PO PO 3,620 10 100% 529.42 103,467.19 479.97 102,950.45 16,167 314 53 3,877 162 23 1,440 235 PO PO PO O PO • PO PO 3,595 10 100% 637.85 104,105.04 706.75 103,657.20 16,266 8-21-03 317 38 3,915 163 23 1,485 205 PO PO • O PO • • PO 3,560 10 100% 508.23 104,613.27 437.71 104,094.91 16,346 625-03 321 51 3,966 165 24 1,460 240 PO PO • O PO PO • PO 3,525 10 100% 589.23 105,202.50 680.99 104,775.90 16,438 628-03 324 37 4,003 167 24 1,450 270 PO PO • O • PO • PO 3,590 10 100% 495.55 105,698.05 566.10 105,342.00 16,515 9-1-03 328 52 4,055 169 24 1,465 220 PO PO • O • PO • PO 3,630 10 100% 797.95 106,496.00 655.49 105,997.49 16,640 9-5-03 332 50 4,105 171 24 1,455 215 PO PO PO O • PO PO PO 3,655 10 100% 632.14 107,128.13 620.20 106,617.70 16,739 9-8-03 335 41 4,146 173 25 1,465 230 PO PO PO O • • PO PO 3,595 10 100% 510.06 107,638.19 535.10 107,152.80 16,818 9-11-03 338 37 4,183 174 25 1,460 245 PO PO PO O PO • PO PO 3,520 10 100% 484.33 108,122.52 503.63 107,656.42 16,694 9-15-03 342 52 4,235 176 25 1,465 250 PO PO PO O PO • PO PO 3,480 10 100% 709.94 108,832.47 714.02 108,370.44 17,005 9-19-03 346 54 4,289 179 26 1,470 235 PO PO • O PO • • PO 39455 10 100% 743.75 109,576.21 691.96 109,062.41 17,121 9-22-03 349 38 4,327 180 26 1,485 215 PO PO • O PO PO • PO 3,430 10 100% 488.44 110,064.65 44225 109,504.66 17,198 9-2603 353 51 4,378 182 26 1,460 240 PO PO • O • PO • PO 3,420 10 100% 595.41 110,660.06 660.65 110,165.31 17,291 9-29-03 356 37 4,415 184 26 1,470 225 PO PO • O 0 PO • PO 3,415 10 10096 480.79 111,140.85 448.67 110,613.98 17,366 10-3-03 --Wr 54 4,469 186 27 1,485 245 PO PO PO O • PO PO PO 2,850 10 100% 658.87 111,797.72 594.70 111,208.67 17,468 10-7-03 364 52 4,521 188 27 1,505 230 PO PO PO O • • PO PO 2,565 10 100% 574.81 112,372.53 483.64 111,692.32 17,558 10-10-03 367 41 4,562 190 27 1,495 225 PO PO PO O PO • PO PO 2,235 10 100% 382.92 112,755.45 324.85 112,017.16 17,618 10-1303 370 38 4,600 192 27 1,480 230 1 PO PO PO O PO • PO PO 1,975 1 10 1 99% 302.52 113,057.97 1 271.80 112,288.96 17,665 10-17-03 374 55 1 4,655 194 28 1,455 1 215 1 PO PO • 0 PO 411 • PO 1,650 1 10 1 99% 395.52 113,453.49 1 306.88 112,595.84 17,727 TABLE 4. SUMMARY OF VES MONITORING DATA DOWNTOWN CHEVRON SERVICE STATION,BAKERSFIELD,CALIFORNIA Cumulative Cumulative Cumulafive Cumulative Outlet Wet I Dllutm Field Field Reduction Cumutellve lbs. Cumuletive Cumulative Date Calendar Operating Operating Operating Operagng Temper- Flow MW-1 V-1s V-11 V-1d V-2 V-3 V-4 MW-10 MW-11 Air TPH In TPH Out Efficiency Total lbs. Lbs. Destroyed Lbs. Gallons Monitored Days Hours Hours Days Weeks atureM (scfm) (valve) (valve) (valve) (valve) (valve) (valve (valve (valve (valve (valve) (ppmv) (ppmv) (>90%) Extracted Extracted per event Destroyed Extracted 10-21-03 378 49 4,704 196 28 1,470 235 PO PO • O PO PO • PO 1,100 10 99% 275.19 113,728.68 198.59 112,794.43 17,770 1 D-25-03 382 52 4,756 198 28 1,435 205 PO PO • O • PO • PO 1,355 10 99% 212.80 113,941.48 226.86 113,02128 17,803 10.28-03 385 42 4,798 200 29 1,460 240 PO PO • O • PO • PO 1,960 10 99% 184.69 114,126.18 311.08 113,332.36 17,832 10-30-03 387 29 4,827 201 29 1,450 265 PO PO PO O • PO PO PO 2,400 10 100% 215.96 114,342.14 290.70 113,623.07 17,866 114-03 392 62 4.889 204 29 1,465 220 PO PO PO O • • PO PO 2,780 10 100% 624.25 114,966.39 598.00 114,22106 17,963 11-7-03 395 39 4.928 205 29 1,440 215 PO PO PO O PO • PO PO 3,175 10 100% 377.61 115,344.00 420.04 114,641.11 18,023 11-12-03 400 67 4,995 208 30 1,485 230 PO PO PO O PO • PO PO 3,400 10 100% 724.05 116,068.06 828.86 115,467.96 18,136 11-18-03 406 78 5,073 211 30 1,460 205 PO PO • O PO • • PO 3,265 10 100% 965.64 117,033.69 823.78 116291.75 18287 11-21-03 409 37 5,110 213 30 1,455 225 PO PO • O PO PO • PO 3,070 10 100% 392.06 117,425.75 403.20 116,694.95 18,348 11-24-03 412 40 51150 215 31 1,490 240 PO PO • O • PO • PO 2,855 10 100% 437.41 117,863.16 432.28 117,127.24 18,416 11-28-03 416 51 5.201 217 31 1,470 210 PO PO • O • PO • PO 2,675 1 10 100% 553.22 118,416.39 451.73 117,578.97 18,503 12-1-03 419 1 42 5,243 218 31 1,435 195 PO PO PO O • PO PO PO 2,525 10 100% 1 373.51 118,789.90 325.99 117,904.96 18,561 12-5-03 423 1 50 5.293 221 32 1,450 235 PO PO PO O • • PO PO 2,480 10 100% 38914 119,179.64 1 459.34 118,364.30 18,622 12-9-03 427 49 5.342 223 32 1,465 220 PO PO PO O PO • PO PO 2,305 10 100% 452.09 119,631.73 391.55 118,755.84 18,692 12-12-03 430 41 5.383 224 32 1,440 215 PO PO PO O PO • PO PO 2,270 10 100% 329.15 119,960.88 315.29 119,071.13 18,744 12-16-03 434 55 5,438 227 32 1,485 235 PO PO • O PO • • PO 2,155 10 100% 424.95 120,385.83 438.77 119,509.91 18,810 12-20-03 438 51 5,489 229 33 1,460 255 PO PO • O PO PO • PO 1,890 10 99% 408.88 120,794.71 386.94 119,896.85 18,874 12-22-03 440 29 5,518 230 33 1,450 240 PO PO • O • PO • PO 1,375 10 99% 221.26 121,015.98 150.33 120,047.18 18,909 12-28-03 446 76 5.594 233 33 1,465 235 PO PO • O • PO • PO 910 10 99% 397.04 121,413.02 254.29 120,301.47 18,971 1-9-04 458 225 5.819 242 35 1,472 229 PO O PO O • PO PO • 789 10 99% 760.52 122,173.54 633.88 120,935.35 19,090 1-2204 471 237 6,056 252 36 1,485 204 PO O PO O • • PO • 623 5 99% 678.25 122,851.79 472.98 121,408.33 19,196 1-30-04 479 132 6,188 258 37 1,479 178 PO O PO O PO • PO • 556 5 99% 266.55 123,118.34 205.54 121,613.67 19237 2-604 486 123 6,311 263 38 1,488 183 PO O PO O PO • PO • 468 5 99% 192.15 123,310.49 164.36 121,77823 19,267 2-11-04 491 82 6,392 266 38 1,496 167 PO O EPO O PO • • • 397 5 99% 110.64 123,421.13 84.47 121,862.70 19,285 2-18-04 498 138 6,530 272 39 1,484 189 PO O O PO PO • • 438 5 99% 144.59 123,565.72 178.31 122,041.01 19,307 2-26-04 508 150 6,680 278 40 1,472 231 PO O O • PO • • 404 5 99% 19627 123,761.99 218.34 122,259.36 19,338 3-1-04 510 76 6,756 281 40 1,476 229 PO O O • PO • • 375 5 99% 112.05 123,874.03 101.64 122,361.00 19,355 35-04 514 96 6,852 285 41 1,468 236 PO O O • PO PO • 416 5 99% 130.51 124,004.55 147.30 122,508.30 19,376 324-04 533 285 7,137 297 42 1,409 242 PO O O 0 • PO • 389 5 99% 442.96 124,447.50 418.94 122,92724 19,445 329-04 538 119 7256 302 43 1,468 228 PO O O PO • PO • 330 5 98% 177.35 124,624.85 139.46 123,066.69 19,473 4-8-04 548 166 7,421 309 44 11456 217 PO O O PO • PO • 368 5 99% 197.25 124,822.10 206.31 123,273.00 19,503 4.21-04 561 231 7,652 319 46 1,459 243 PO O PO O PO • • • 434 5 99% 291.88 125,113.98 380.76 123,653.76 19,549 4-28-04 568 134 7,787 324 46 1,465 222 PO O PO O PO PO • • 371 5 99% 224.39 125,338.38 172.72 123,826.48 19,584 5304 573 92 7.879 328 47 1,473 245 PO O PO O PO PO • • 362 5 99% 120.48 125,458.86 127.83 123,954.32 19,603 5-12-04 582 177 8.056 336 48 1,465 237 PO O PO O PO PO • • 348 5 99% 248.69 125,707.54 227.73 124,182.05 19,642 577-04 587 80 8,137 339 48 1,471 229 PO O PO O 0 PO PO • 324 5 98% 104.98 125,812.52 92.89 124,274.93 19,658 5-27-04 597 120 8,257 344 49 1,462 234 PO O PO O • PO PO • 300 5 98% 141.19 125,953.71 13121 124,406.15 19,680 61-04 602 51 8,308 346 49 1,434 215 PO O PO O PO PO PO • 287 5 98% 56.68 126,010.39 48.89 124,455.04 19,689 67-04 608 65 8,373 349 50 1,410 204 PO O PO O PO • PO • 246 5 98% 63.50 126,073.88 50.51 124,505.55 19,699 614-04 615 182 8.555 356 51 1,420 226 PO O PO O PO • PO • 158 2 99% 144.59 126,218.48 101.50 124,607.05 19,722 617-04 618 220 8,775 366 52 1,405 231 PO O PO O PO PO PO • 75 1 99% 124.37 126,342.84 59.48 124,666.53 19,741 630-04 631 70 8.845 369 53 1,460 219 PO O PO O PO PO • • 20 0.5 98% 19.20 126,362.04 4.72 124,671.26 19,744 7-6x04 637 26 8,871 370 53 1,425 223 PO O PO O PO PO • • 296 5 98% 1.80 126,363.84 26.68 124,697.94 19,744 7-14-04 645 145 9,016 376 54 1,427 230 O O PO O O PO PO • 318 5 98% 151.52 126,515.37 165.08 124,863.02 19,768 7-19-04 650 41 9057 377 54 1,435 234 O O PO O O PO PO • 384 5 99% 47.47 126,562.84 57.52 124,920.53 19,775 7-26-04 657 13 9,070 378 54 1,428 229 PO O PO O PO O PO • 276 5 98% 18.49 126,581.33 12.76 124,933.29 19,778 7-29-04 660 8 9,078 378 54 1,432 204 PO O PO O PO O PO • 108 2 98% 8.00 126,589.34 2.73 124,936.02 19,780 8-3704 665 35 9,113 380 54 1,432 179 O O PO O PO PO O • 294 5 98% 12.21 126,601.54 28.62 124,964.65 19,781 8-9-04 671 139 9,246 385 55 1,423 181 O O PO O PO PO O • 318 5 98% 110.81 126,712.35 119.13 125,083.77 19,799 8-20-04 682 224 9,470 395 56 1,427 m O O PO O O PO PO • 256 5 98% 204.11 126,916.46 157.28 125241.05 19,831 8-26-04 688 58 9,528 397 57 1,432 185 O O PO O O PO PO • 190 2 99% 41.61 126,958.07 31.91 125,272.96 19,837 9304 696 66 9.594 400 57 1,431 231 PO O PO O O O PO • 167 2 99% 36.73 126,994.79 39.79 125,312.75 19,843 9-10-04 703 39 9,633 401 57 1,429 229 PO O PO O O O PO • 134 2 99% 23.82 1279018.61 18.64 125,331.40 19,847 9-1604 709 18 9,649 402 57 1,425 236 O O PO O PO 0 0 • 118 2 98% 7.69 127,026.31 8.88 125,33826 19,848 TABLE 4. SUMMARY OF VES MONITORING DATA DOWNTOWN CHEVRON SERVICE STATION,BAKERSFIELD,CALIFORNIA Cumulative h24 Cumulative Cumulative Cumulative Outlet Inlet Dilution Feld Field Reduction Cumulative Lbs. Cumulative Cumulative Date Calendar Operating Operating Operating Temper- Flow MW-1 V-1s V-1i V-td V-2 V-3 V4 MW-10 MW-11 Air TPH In TPH Out Efficiency Total Lbs. lbs. Destroyed Lbs. Gallons Monitored Days Hours Days Weeks ature M (scfm) (valve) (valve) (valve) (valve) (valve) (valve (valve (valve (valve (valve) (ppmv) (ppmv) (>90%) Extracted Extracted per event Destroyed Extracted 9-23-04 716 9,668 403 58 1,423 225 O O PO O PO O O • 87 2 98% 8.45 127,034.75 5.79 125,344.05 19,849 9-30.04 723 9,691 404 58 1,428 211 O O PO O PO PO O • 60 1 98% 729 127,042.04 4.55 125,348.60 19,650 10.8-04 731 9,709 405 58 1,435 224 O O PO O PO PO O • 114 2 98% 3.41 127,045.45 6.95 125,355.46 19,851 10.1304 736 9,711 405 58 1,448 208 PO O PO O O PO PO • 178 2 99% 0.97 127,046.42 1.39 125,356.84 19,851 10.18-04 741 32 9,743 1 406 58 1 1,455 215 PO O PO O O PO PO • 204 1 5 98% 1 18.64 127,065.06 21.50 125,378.35 19,854 10.25-04 748 24 9,766 407 58 1,451 221 O O PO O O O PO • 256 5 98% 16.33 127,081.39 20.63 125,398.97 19,856 114-04 758 48 9,814 409 58 1,446 225 O O PO O O O PO • 311 5 98% 42.99 127,124.38 52.26 125,45123 19,863 11-11-04 765 30 9,845 410 59 1,442 234 O O PO O PO O O • 356 5 99% 33.50 127,157.88 39.28 125,490.52 191868 11-19-04 773 77 9,922 413 59 1,437 230 O O PO O PO O O • 380 5 99% 101.86 127,259.74 105.37 125,595.89 19,884 11-28.04 782 193 10,115 421 60 1,439 222 PO O PO O PO PO O • 347 5 99% 267.04 127,526.79 231.75 125,827.64 19,926 12-9-04 793 214 10,329 430 61 1,469 216 PO O PO O PO PO O • 303 5 98% 260.79 127,787.57 217.65 126,045.30 19,967 12-15-04 799 192 10,521 438 63 1,564 206 O O PO O O PO PO 0 256 5 98% 199.10 127,986.67 157.07 126,202.36 19,998 12-24-04 808 166 10,687 445 64 1,522 209 O O PO O O PO PO • 198 2 99% 138.59 128,125.26 107.57 126,309.94 20,020 12-27-04 811 73 10,760 448 64 1,514 216 O O PO O O O PO • 160 2 99% 47.82 128,173.08 39.41 126,349.34 20,027 14-05 819 13 10,773 449 64 1,512 223 O O PO O PO O O • 913 5 99% 7.11 128,180.20 41.66 126,391.00 20,028 1-1305 828 16 10,789 450 64 1,411 231 PO O PO O PO O O • 117 2 98% 51.57 128,231.77 6.72 126,397.72 20,036 1-19-05 834 57 10,846 452 65 1,446 229 PO O PO O PO PO O • 345 5 99% 24.39 128,256.16 70.19 126,467.91 20,040 1-27-05 842 94 10,940 456 65 1,872 236 O O PO O PO PO O • 526 2 100% 117.57 128,373.73 192.41 126,660.32 20,058 2-2-05 848 124 11,064 461 66 1,750 242 O O PO O O PO PO • 343 2 99% 254.81 128,628.53 161.94 126,822.26 20,098 2.9-05 855 33 11,097 462 66 1,608 228 O O PO O O PO PO • 212 2 99% 43.36 128,671.90 25.00 126,847.26 20,105 2-16-05 862 80 11,177 466 67 1,777 217 O O PO O O O PO • 81 2 98% 6122 128,733.11 21.67 126,868.93 20,115 2-21-05 867 1 11,178 466 67 1,485 243 PO O PO O PO O O • 54 0.5 98% 028 128,733.39 0.10 126,869.03 20,115 3-1-05 875 54 11,232 468 67 1,435 222 PO O PO O PO O O • 176 5 97% 5.40 128,738.79 32.39 126,901.42 20,115 37-05 881 32 11,264 469 67 1,433 245 O O PO O PO PO O • 319 5 98% 19.79 128,758.59 38.93 126,940.35 20,119 31305 887 5 11,269 470 67 1,471 237 O O PO O PO PO O • 117 5 96% 6.19 128,764.77 2.10 126,942.45 20,119 324-05 898 152 11,421 476 68 1,785 229 O O PO O O PO PO • 67 0.2 98% 66.73 128,831.50 5.39 1 126,947.84 20,130 330-05 904 4 11,424 476 68 1,546 234 O O PO O O PO PO • 99 2 98% 0.13 128,831.63 1.29 126,949.13 20,130 4-7-05 912 7 11,432 476 68 1,467 239 PO O PO O O O PO • 296 5 98% 2.71 128,834.34 6.14 126,957.27 20,130 4-18-05 923 167 11,599 483 69 620 242 PO O PO O PO O O • 645 10 98% 187.03 129,021.38 405.88 127,363.15 20,160 4-22-05 927 99 11,698 487 70 680 245 O O PO O PO O O • 460 10 98% 244.64 129,266.01 172.56 127,535.71 20,198 4-28-05 933 143 11,841 493 70 686 244 O O PO O PO PO O < • 634 10 98% 255.14 129,521.15 344.35 127,880.05 20,238 55-05 940 98 11,939 497 71 670 244 O O PO O PO PO O • 718 10 99% 240.00 129,761.15 267.78 128,147.84 20,275 59-05 944 109 12,048 502 72 671 244 O O PO O O PO PO • 614 10 98% 302.31 130,063.46 254.05 128,401.89 20,322 518-05 953 188 12238 510 73 672 243 PO O PO O O PO PO • 481 5 99% 445.89 130,509.35 344.03 128,745.92 20,392 525-05 960 184 12,420 517 74 667 240 PO O PO O O O PO • 330 5 98% 340.47 130,849.82 226.99 128,972.91 20,445 63-05 974 332 12,752 531 76 672 241 O O PO O PO O O • 418 5 99% 41627 131,266.09 522.74 129,495.66 20,510 6-15-05 981 178 12,930 539 77 760 241 1 O O PO O PO O O • 398 5 99% 283.87 131,549.97 268.68 1291762.34 20,555 6-23-05 989 33 12,963 540 77 730 240 O O PO O PO PO O • 313 5 98% 50.11 131,600.08 38.58 129,800.92 20,563 6.27-05 993 101 13,064 544 78 691 236 O O PO O PO PO O • 270 5 98% 120.11 131,720.19 99.88 129,900.80 20,581 7-3-05 1,004 29 13,093 546 78 718 237 O O PO O PO PO O • 376 5 99% 29.25 131,749.45 40.33 129,941.13 20,586 7-13-05 1,009 16 13,109 546 78 672 235 O O PO O PO PO O • 455 5 99% 22.57 131,772.02 26.77 129,967.90 20,589 7-20-05 1,016 51 13,160 548 78 741 235 O O PO O PO PO O • 538 10 98% 1 86.33 131,858.35 1 100.06 130,067.96 20,603 7-28-05 1,024 204 13,364 557 80 751 238 O O PO O PO PO O • 602 10 98% 408.31 132266.66 454.55 130,522.50 20,667 8.2-05 1,029 42 13,406 559 80 1 670 235 O 1 O PO O PO PO O • 656 10 98% 95027 132,361.92 100.84 1301623.34 20,682 8-11-05 1,038 "6 13,412 559 80 672 237 O O PO O PO PO O • 720 10 99% 14.64 132.376.57 15.97 130,639.31 20,684 8-16-05 1,043 60 13,472 561 80 681 236 O O PO O PO PO O • 688 10 99% 162.09 132,538.65 151.84 1301791.16 20,709 8-26-05 1,053 68 13,540 564 81 670 235 O O PO O PO PO O • 614 10 98% 174.79 132,713.45 152.64 130,943.80 20,736 9-5-05 1,063 73 13,613 567 81 720 234 O O PO O PO PO O • 342 5 99% 166.75 132,88020 91.05 131,034484 20,763 9-9-05 1,067 172 13,785 574 82 692 233 O O PO O PO PO O • 97 2 1 98% 217.91 1 133,098.11 60.19 131,095.04 20,797 9.16-05 1,074 127 13,912 580 83 674 231 O O PO O PO PO O • 65 1 98% 45.44 133,143.55 29.69 131,124.73 20,804 9.2605 1,084 11 13,923 580 83 878 230 O O PO O PO PO O • 45 1 98% 2.61 133,146.17 1.88 131,126.41 20,804 103-05 1,091 126 14,049 585 84 670 232 O O PO O PO PO O • 67 1 99% 19.73 133,165.89 30.51 131,156.92 20,807 10.10.05 1,098 163 14212 592 85 681 234 O O PO O PO PO O • 53 1 98% 40.10 133,205.99 1 31.35 131,188.27 20,813 10.17-05 1,105 1 167 1 14,379 1 599 1 86 692 233 1 0 0 PO 0 PO PO 1 0 1 56 1 1 98% 32.80 133,238.79 1 33.85 131,222.12 20,819 TABLE 4. - SUMMARY OF VES MONITORING DATA DOWNTOWN CHEVRON SERVICE STATION,BAKERSFIELD,CALIFORNIA Cumulative Cumulative Cumulative Cumulative Outlet Wet Dilution Field Field Reduction Cumulative Lbs. Cumulative Cumulative Date Calendar Operating Operating Operating Operating Temper- Flow MW-1 V-1s V-1I V-1d V-2 V-3 V-4 MW-10 MW-11 Air TPH In TPH Out Effidency Total Lbs. Lbs. Destroyed Lbs. Gallons Monitored Days Hours Hours Days Weeks atum('F) (scfm) (valve) (valve) (valve) (valve) (valve) (valve (valve (valve (valve (valve) (ppmv) (ppmv) (>90%) Extracted Extracted per evert Destroyed Extracted 1627-05 16115 239 14,618 609 87 683 231 O O PO 1 O PO PO 0 0 49 1 98% 49.37 133,288.16 41.90 131264.02 20,826 11 -05 1,123 187 14,805 617 88 695 230 O O PO O PO PO O O O • 350 5 99% 33.51 133,321.67 234.69 131,498.71 20,832 11-11-05 1,130 168 14,973 624 89 695 235 O O PO 0 PO PO O O O • 294 5 98% 214.10 133,535.77 180.43 131,679.14 20,865 11-15-05 1,134 97 15,070 628 90 676 233 O O PO O PO PO O 0 O • 286 5 98% 106.10 133,641.80 100.43 131,779.56 20,882 11-25-05 1,144 239 15,309 638 91 694 231 O O PO O PO PO 1 O 0 O 1 • 1 281 5 1 98% 252.13 133,894.00 240.95 132,020.51 20,921 12-0-05 1,155 266 15,575 649 93 691 233 O O PO O PO PO O O O • 429 5 99% 273.35 134,167.34 415.71 132,43621 20,964 12-15-05 1,164 214 15,789 658 94 694 231 O O PO O PO PO O O O • 518 5 99% 338.39 134,505.73 400.92 132,837.13 21,017 12-20-05 1,169 133 15,922 663 95 692 230 O O PO O PO PO O 0 O • 487 5 99% 25225 134,757.98 225.30 133,062.43 21,056 12-28-05 1,177 173 16,095 671 96 688 232 O O PO O PO PO O O O • 451 5 99% 295.72 135,053.70 282.85 133,345.29 21,102 1-3-06 1,183 143 16,237 677 97 701 233 O O PO O PO PO PO O O • 387 5 99% 236.14 135,289.84 200.71 133,545.99 21,139 1-9-06 1,189 152 16,389 683 98 695 230 O O PO O PO PO PO O 0 • 419 5 99% 216.47 135,506.31 228.41 133,774.40 21,173 1-19-06 1,199 243 16,632 693 99 691 230 O O PO O PO PO PO 0 O • 394 5 99% 370.73 135,877.04 343.90 134,118.30 21,231 1-27-06 1,207 118 16,750 698 100 690 233 O O PO O PO PO PO O O • 217 5 98% 169.28 136,046.33 92.14 134,210.44 21,257 2-1-06 1,212 121 16,871 703 100 712 230 O O PO O PO PO PO O O • 345 5 99% 96.85 136,143.18 149.65 134,360.09 21,272 2-9-06 1,220 199 17,070 711 102 699 230 O O PO O PO PO PO O O • 367 5 99% 249.98 136,393.16 282.07 134,622.16 21,311 2-15-08 1,226 137 17,207 717 102 694 231 O O PO O PO PO PO O O • 343 5 99% 182.81 136,575.97 168.93 134,791.09 21,340 2-24-06 1,235 215 17,422 725 104 704 230 O O PO O PO PO PO O O • 314 3 99% 269.94 136,845.91 243.54 135,034.63 21,382 3-7-06 1,246 263 17,685 737 105 710 230 O O PO O PO PO PO O O • 262 3 99% 300.69 137,146.60 247.84 135.282.47 21,429 3.14-06 1.253 168 17,853 744 106 705 237 O O PO O PO PO PO O O • 206 3 99% 160.27 137,306.87 127.84 135,410.30 21,454 3-20-06 1,259 33 17,886 745 106 694 230 O O PO O PO PO PO O O • 131 3 98% 25.51 137,332.38 15.36 135,425.66 21,458 3-27-06 1,266 131 18,017 751 107 689 227 O O PO O PO PO PO O O • 99 2 98% 62.49 137,394.86 46.07 135,471.73 21,468 4-5-06 1,275 212 18,229 760 109 677 229 O O PO O PO PO PO O O • 147 2 99% 76.07 137,470.93 111.17 135,582.91 21,480 4-10-06 1,280 120 18,349 765 109 672 230 O O PO O PO PO PO O O • 195 2 99% 64.12 137,535.05 84.50 135,667.40 21,490 4-17-06 1.287 169 18,518 772 110 684 229 O O PO O PO PO PO O O O 203 2 99% 119.99 137,655.05 123.07 135,790.47 21,509 4-24-06 1,294 168 18,686 779 111 677 224 O O PO O PO PO PO O O • 210 2 99% 123.64 137,778.69 123.84 135,914.31 21,528 5-1-06 1,301 100 18,786 783 112 675 221 O O PO O PO PO PO O O • 168 2 99% 74.47 137,853.16 58.03 135,972.34 21,540 5.8-08 1,308 183 18,949 790 113 674 220 O O PO O PO PO PO O O • 112 2 98% 95.81 137,948.96 6237 136,034.71 21,555 5.15-06 1,315 433 19,382 808 115 674 220 O O PO O PO PO PO O O • 95 2 98% 168.90 138,117.87 140.05 136,174.76 21,581 5-31-06 1,331 120 19,502 813 116 681 221 O O PO O PO PO PO O O • 105 2 98% 39.70 138,157.57 43.19 136,217.94 21,587 6606 1,337 142 19,644 818 117 664 220 O O PO O PO PO PO O O • 114 2 98% 52.17 138,209.74 55.32 136,273.27 21,595 6-13-06 1,344 25 19,669 820 117 666 214 O O PO O PO PO PO O O • 109 2 98% 10.01 138,219.74 9.12 136,282.39 21,597 6-19-06 1,350 143 19,812 825 118 667 203 O O PO O PO PO PO O O • 102 2 98% 52.73 138,272.48 45.82 136,328.21 21,605 6-26-06 1,357 169 19,981 833 119 668 204 O O PO O PO PO PO O O • 96 2 98% 55.40 138,327.88 51.22 136,379.44 21,614 7-3-06 1,364 78 20,059 836 119 669 204 O O PO O PO PO PO O O • 122 2 98% 24.18 138,352.06 30.19 136,409.63 21,618 7-10-06 1,371 256 20,315 846 121 664 204 O O PO O PO PO PO O O • 119 2 98% 100.87 138,452.92 96.61 136,506.24 21,633 7-17-06 1,378 160 20,474 853 122 671 203 O O PO O PO PO PO 1 O O • 144 2 99% 61.34 138,514.26 72.76 136,579.00 21,643 7-24-06 1,385 178 20,653 861 123 665 201 O O PO O PO PO PO O O 1 • 97 2 98% 82.56 138,596.82 53.84 136,632.84 21,656 7-27-06 1,388 0 20,653 861 123 695 230 O O PO O PO PO PO O O • 64 1 98% 0.00 138,596.82 0.00 136,632.84 21,656 8-3-M 1,395 123 20,776 866 124 673 225 O O PO O PO PO PO O O • 403 5 99% 28.66 138,625.48 17423 136,807.07 21,660 B-11-06 1,403 139 20,915 871 124 665 229 O O PO O PO PO PO O O • 320 5 98% 199.53 138,825.02 158.57 136,965.64 1 21,691 B-18-06 1,410 153 21,068 878 125 687 232 O O PO O PO PO PO O O • 206 5 98% 177.50 139,002.51 112.77 137,078.41 21,719 8-22-06 1,414 1 21,069 878 125 683 227 O O PO O PO PO PO O O • 152 2 99% 0.76 139,003.27 0.54 137,078.95 21,719 11.30-06 1,422 17 21,086 879 126 683 236 O O PO O PO PO PO O O • 119 2 98% 9.29 139,012.55 7.42 137,086.37 21,721 95.06 1,428 44 21,130 880 126 679 227 O O PO O PO PO PO O O • 96 2 98% 19.56 139,032.12 14.84 137,101.21 21,724 9-11-06 1,434 30 21,160 882 126 685 230 O O PO O PO PO PO O O • 103 2 98% 10.35 139,042.47 11.02 137,112.23 21,725 9-18-06 1,441 60 21,220 884 128 691 231 O O PO O PO PO PO O O • 97 2 98% 22.50 139,064.97 20.82 137,133.05 21,729 9-24-06 1,447 67 21,287 887 127 675 233 O O PO O PO PO PO O O • 125 2 98% 23.77 139,088.74 30.37 137,163.41 21,733 9-27-06 1,450 70 21,357 890 127 672 232 O O PO O PO PO PO O O • 143 2 99% 32.20 139,120.94 36.13 137,199.55 21,738 10-2-06 1,455 99 21,456 894 128 654 230 O O PO O PO PO PO O O • 129 2 98% 52.08 139,173.02 45.81 137,245.36 21,746 10-11-00 1,464 216 21,672 903 129 671 233 O O PO O PO PO PO O O • 147 2 99% 101.46 139,274.48 115.43 137,360.78 21,762 10.16-06 1,469 117 21,789 908 130 670 230 O O PO O PO PO PO O O • 167 2 99% 63.44 139,337.92 70.24 137,431.02 21,772 10-26-06 1,479 0 21,789 908 130 664 221 O O PO O PO PO PO O O • 174 2 99% 0.00 139,337.92 0.00 137,431.02 21,772 10-30-06 1,483 72 21,861 911 130 668 223 O O PO O PO PO PO O O • 185 2 99% 43.83 139,381.75 46.48 137,477.50 21,778 11-606 1,490 137 21,998 917 131 654 233 O O PO O PO PO PO 0 O • 194 2 99% 89.48 1 139,471.22 96.96 137,574.46 21,792 TABLE 4. SUMMARY OF VES MONITORING DATA DOWNTOWN CHEVRON SERVICE STATION,BAKERSFIELD,CALIFORNIA Cumulative Cumulative Cumulative Cumulative Outlet Inlet DOution Field Field Reduction Cumulative Lbs. Cumulative Cumulative Date Calendar Operating Operating Operating Operating Temper- Flow MW-1 V-1s V-1i V-id V-2 V-3 V-4 MW-10 MW-11 Air TPHIn TPHOut Efficiency Totallbs. Lbs. Destroyed Lbs. Gallons Monitored Days Hours Hours Days Weeks ature(°F) (sclm) (valve) (valve) (valve) (valve) (valve) (valve (valve (valve (valve (valve) (ppmv) (ppmv) (>90%) Extracted Extracted per event Destroyed Extracted _ 11-946 1,491 104 22,102 921 132 655 1 227 O O PO O PO PO PO O O • 167 2 99% 74.42 139,545.65 61.62 137,636.08 21,804 4-19-07 1,491 0 22,102 921 132 166 O O PO O PO PO PO O O • 92 2 98% 0.00 139,545.65 0.00 137,636.08 21,804 4-23-07 1,495 94 22,196 925 132 167 O O PO O PO PO PO O O • 58 1 98% 22.73 139,568.37 14.02 137,650.10 21,808 4.3007 1,502 167 22.363 932 133 163 O O PO O PO PO PO O O • 45 1 98% 25.39 139,593.76 18.75 137,668.85 21,812 58-07 1,510 192 22,555 940 134 166 0 0 PO O PO PO PO O O • 63 1 98% 22.10 139,615.88 3124 137,700.09 21,815 514-07 1,516 144 22.699 946 135 169 O O PO O PO PO PO O O • 57 1 98% 23.84 139,639.70 21.39 137,721.47 21,819 5-22-07 1,524 195 22,894 954 136 167 O O PO O PO PO PO O O • 59 1 98% 29.53 139,669.23 29.86 1371751.33 21,823 5-31-07 1,533 212 23.106 963 138 161 O O PO O PO PO PO O O • 52 1 98% 33.07 139,70230 27.45 137,778.78 21,828 6 -07 1,537 96 23,202 967 138 157 O O PO O PO PO PO O O • 53 1 98% 12.70 139,715.00 12.31 137,791.09 21,830 6-10-07 1,543 169 23,371 974 139 155 O O PO O PO PO PO O O • 56 1 98% 22.14 139,737.13 22.60 137,813.70 21,834 6-20-07 1,553 220 23,591 983 140 154 O O PO O PO PO PO O O • 60 1 98% 30.02 139,767.15 31.43 137,845.13 21,839 6-26-07 1,559 141 23,732 989 141 155 O O PO O PO PO PO O O • 58 1 98% 20.52 139,787.67 19.65 137,864.78 21,1142 7.6-07 1,569 240 23,972 999 143 144 O O PO O PO PO PO O O • 59 1 98% 34.10 139,821.77 31.84 137,896.62 21,847 7-11-07 1,574 119 24,091 1004 143 156 O O PO O PO PO PO O O • 55 1 98% 16.09 139,837.85 15.93 137,912.65 21,850 7-16-07 1,579 121 24,212 1009 144 173 O O PO O PO PO PO O O • 44 1 98% 16.53 139,854.38 14.09 137,926.64 21,852 7-24-07 1,587 101 24,313 1013 145 198 O O PO O PO PO PO O O • 18 02 99% 12.06 139,866.44 4.95 137,931.60 21,854 8-2-07 1,596 216 24,529 1022 146 198 O O PO O PO PO PO O O • 56 1 98% 10.74 139,877.18 36.98 137,968.58 21,856 8Fa07 1,600 93 24,622 1026 147 197 O O PO O PO PO PO O O • 60 1 98% 16.24 139,893.42 17.09 137,985.67 21,858 8-15-07 1,609 203 24,825 1034 148 199 O O PO O PO PO PO O O • 61 1 98% 37.99 139,931.41 38.31 138,023.98 21,864 8-20-07 1,614 133 24,958 1040 149 198 O O PO O PO PO PO O O • 40 0.5 99% 25.68 139,957.09 16.33 138,040.31 21,868 8-27-07 1,621 169 25,127 1047 150 199 O O PO O PO PO PO O O • 52 1 98% 21.03 139,978.12 27.11 138,067.42 21,872 9-4-07 1,629 191 25,318 1055 151 198 O O PO O PO PO PO O O • 64 1 98% 31.29 140,009.41 37.43 138,104.85 21,876 9-14-07 1,639 243 25,561 1065 152 176 O O PO O PO PO PO O O • 69 1 98% 48.52 140,057.93 46.11 138,150.95 21,884 9-19-07 1,644 121 25,682 1070 153 184 O O PO O PO PO PO O O • 67 1 98% 23.40 140,081.33 23.26 138,174.22 21,888 9-24-07 1,649 117 25,799 1075 154 180 O O PO O PO PO PO O O • 57 1 98% 22.97 140,104.30 18.54 138,192.76 21,891 104-07 1,659 167 25,986 1082 155 195 O O PO O PO PO PO O O 0 64 1 98% 27.03 140,131.33 32.44 138,225.19 21,896 10-8-07 1,663 95 26,061 1086 155 197 O O PO O PO PO PO O O • 57 1 98% 18.77 140,150.10 16.57 138,241.76 21,898 10-11-07 1.666 72 26,133 1089 156 198 O O PO O PO PO PO O O • 50 1 98% 12.80 140,162.90 11.04 138,252.81 21,900 1016-07 1,671 1 26,134 1089 156 199 O O PO O PO PO PO O O • 43 1 98% 0.16 140,163.06 0.13 138,252.94 21,900 10-24-07 1,679 191 26,325 1097 157 199 O O PO O PO PO PO O O • 38 0.5 99% 25.87 140,188.93 22.54 138,275.48 21,905 10-31-07 1,686 140 26,465 1103 158 199 O O PO O PO PO PO O O • 33 0.5 98% 16.76 140,205.69 14.32 138,289.80 21,907 11-8-07 1,692 144 26,609 1109 158 198 O O PO O PO PO PO O O • 56 0.5 99% 14.97 140,220.66 25.03 138,314.83 21,909 11-1507 1,701 126 26,735 1114 159 198 O O PO O PO PO PO O O • 34 0.5 99% 22.12 140,242.78 13.22 138,328.05 21,913 11-19-07 1,705 95 26,830 1118 160 199 O O PO O PO PO PO O O • 21 0.5 98% 10.12 140,252.90 6.12 138,334.17 21,915 11-28-07 1,714 220 27,050 1127 161 199 O O PO O PO PO PO O O • 16 0.2 99% 14.55 140,267.46 10.94 138,345.11 21,917 12-7-07 1,723 214 27,264 1136 182 198 O O PO O PO PO PO O O • 19 0.2 99% 10.78 140,278.24 12.59 138,357.70 21,918 12-12-07 1,728 123 27,387 1141 163 169 O O PO O PO PO PO O O • 23 0.2 99% 7.34 140,285.57 7.51 138,36521 21,920 12-18-0-1 1,734 141 27,528 1147 164 184 O O PO O PO PO PO O O 0 20 0.2 99% 8.68 140,294.25 8.04 138,373.25 21,921 12-28-0-1 1,744 242 27,770 1157 165 188 O O PO O PO PO PO O O • 17 0.2 99% 13.95 140,308.20 12.09 138,385.34 21,923 1-3418 1,750 122 27,892 1162 166 191 O O PO O PO PO PO O O • 14.3 0.1 99% 6.19 140,314.39 5.25 138,390.59 21,924 1-10-08 1,757 141 28,033 1168 167 183 O O PO O PO PO PO O O • 13.7 0.1 99% 6.10 140,320.49 5.56 138,396.15 21,925 1-16-08 1,763 124 28,157 1173 168 188 O O PO O PO PO PO O O • 11.9 0.1 99% 4.92 140,325.41 4.35 138,400.49 21,928 1-28-08 1,775 245 28,402 1183 169 179 O O PO O PO PO PO O - O • 10.4 0.1 99% 8.67 140,334.08 7.14 138,407.63 21,927 2-7.08 1,785 131 28,533 1189 170 184 O O PO O PO PO PO O O • 9.9 0.1 99% 3.86 140,337.93 3.73 138,411.36 21,928 2-12-08 1,790 120 28,653 1194 171 188 O O PO O PO PO PO O O • 10.6 0.1 99% 3.46 140,341.39 3.75 138,415.11 21,928 2-20-08 1,798 88 28,741 1198 171 179 O O PO O 1 PO PO PO O O • 8.5 0.1 99% 2.78 140,344.17 2.09 138,417.20 21,929 2-28-08 1,806 192 28,933 1206 172 184 O O PO O PO PO PO O O • 8.1 0.1 99% 4.62 140,348.79 4.47 138,421.67 21,929 3-5-08 1,812 138 29,071 1211 173 191 O O PO O PO PO PO O O • 5.0 0.1 98% 326 140,35205 2.04 138,423.72 21,930 3-14-08 1,821 191 29,262 1219 174 183 O O PO O PO PO PO O O • 13.2 0.1 99% 2.89 140,354.94 724 138,430.96 1 21,930 3-21-08 1,828 193 29,455 1227 175 171 O O PO O PO PO PO O O • 16.0 0.1 99% 7.38 140,362.32 8.30 138,43926 21,932 3-28-08 1,835 148 29.603 1233 176 184 O O PO O PO PO PO O O • 11.8 0.1 99% 6.41 140,368.73 5.04 138,444.30 21,933 44-08 1,842 190 29.793 1241 177 181 O O PO O PO PO PO O O • 36.1 02 99% 6.53 140,375.28 19.54 138,463.84 21,934 4-11-08 1,849 165 29,958 1248 178 176 O O PO O PO PO PO O O • 28.8 0.1 100% 17.07 140,392.33 12.18 138,476.02 21,936 4-18-08 1,858 165 30,123 1255 179 171 0 0 PO 0 PO PO PO O O • 63.4 0.3 100% 12.23 140,404.56 28.17 138,50.4.19 21,938 TABLE 4. SUMMARY OF VES MONITORING DATA DOWNTOWN CHEVRON SERVICE STATION,BAKERSFIELD,CALIFORNIA N6.-2Cumulative Cumulative Cumulative Cumulative Outlet Inlet DOution Field Feld Reduction Cumulative Lbs. Cumulative Cumulative 2-.0. Calendar Operating Operating Operating Operating Temper- Flow MW-1 V-1s V-11 V-1d V-2 V-3 V-4 MW-10 MW-11 Air TPH In TPH Out Efficiency Total Lbs. Lbs. Destroyed Lbs. Gallons Monitored Days Hours Hours Days Weeks store(°F) (sdm) (valve) (valve) (valve) (valve) (valve) (valve (valve (valve (valve (valve) (ppmv) (ppmv) (>90%) Extracted Extracted per even) Destroyed 6drede0 8 1,863 194 30,317 1263 180 166 O O PO O PO PO PO O O • 30.1 02 99% 33.30 140A37.85 1523 138,519.43 21,943 8 1,867 70 30,387 1266 181 161 O O PO O PO PO PO O O • 31.6 0.1 100% 5.54 140,443.39 12.70 138,532.12 21,944 1,869 48 30,434 1268 181 189 O O PO O PO PO PO O O • 102 0.7 99% 8.63 140,452.02 14.40 _ 138,546.52 21,946 1,873 100 30,535 1272 182 204 O O PO O PO PO PO O O • 174 1.1 99% 30.67 140,482.69 56.08 138,602.60 21,950 1,876 71 30,606 1275 182 201 O O PO O PO PO PO O O • 158 0.9 99% 40.06 140,52274 35.62 138,63822 21,957 8 1,882 141 30,747 1281 183 198 O O PO O PO PO PO O O • 145 0.8 99% 70.75 140,593.49 63.58 138,701.80 21,968 8 1,887 122 30,869 1286 184 168 O O PO O PO PO PO O O • 134 1.8 99% 55.45 140,648.94 42.84 138,744.64 21,976 8 1,898 288 31,157 1298 185 190 O O PO O PO PO PO O O • 151 22 99% 102.64 140,751.58 128.75 138,873.39 21,992 8 1,901 48 31,205 1300 186 196 O O PO O PO PO PO O O • 149 1.8 99% 21.80 140,773.39 21.90 138,895.30. 21,996 8 1,906 168 31,373 1307 187 188 O O PO O PO PO PO O O • 127 2.0 98% 77.67 140,851.06 62.42 138,957.72 22,008 6 1,916 190 31,563 1315 188 191 O O PO O PO PO PO O O • 180 0.9 100% 71.82 140,922.88 102.85 139,060.57 22,019 6-25-08 1,924 193 31,758 1323 189 190 O O PO O PO PO PO O O • 239 1.1 100% 105.04 141,027.92 15327 139,213.84 22,036 6-30-08 1,929 123 31,879 1328 190 184 O O PO O PO PO PO O O • 193 1.8 99% 98.12 141,126.04 68.45 139,282.29 22,051 7-7-08 1,936 166 32,045 1335 191 194 O O PO O PO PO PO O O • 223 1.8 99% 93.32 141,219.36 112.70 139,394.99 22,066 7.14-08 1,943 169 32,214 1342 192 198 O O PO O PO PO PO O O • 237 1.3 99% 115.75 141,335.11 124.81 139,519.80 22,084 7-22-08 1,951 188 32,402 1350 193 198 O O PO O PO PO PO O O • 210 1.6 99% 139.66 141,474.77 122.74 139,642.54 22,105 8-1-08 1,961 239 32,641 1360 194 199 O O PO O PO PO PO O O • 364 2.8 99% 157.32 141,632.09 271.80 139,914.34 22,130 8408 1,964 76 32,717 1363 195 211 O O PO O PO PO PO O O • 394 3.9 99% 87.15 141,71925 98.96 140,013.31 22,144 8-11-08 1,971 5 32,722 1363 195 221 O O O O O O O O O • 5.1 0.1 100% 6.511 141,725.83 0.57 140,013.88 22,145 8-20-08 1,980 216 32,938 1372 196 220 O O O O O O O O O • 44.6 02 t00% 24.52 141,750.35 33.39 140,047.27 22,148 8-25-08 1,985 193 33.131 1380 197 226 O O O O O O O O O • 136 0.1 100% 29.98 1410780.33 93.84 140,141.10 22,163 9-3-08 1,994 214 33.345 1389 198 111 O O O O O O O O O • 86 1.4 98% 104.13 141,884.46 31.74 140,172.85 22,169 941-08 1,999 103 33.448 1394 199 114 O O O O O O O O O • 68 13 98% 15.57 141,900.03 12.37 140,18521 22,172 9-15-08 2,006 167 33,615 1401 200 112 O O O O O O O O O • 74 1.8 98% 20.49 141,920.52 21.31 140206.52 - 22,175 9-22-08 2,013 166 33,781 1408 201 118 O O O O O O O O O • 55 1.1 98% 21.78 141,942.30 16.67 140,223.19 22,178 10.2-08 2,023 180 33.961 1415 202 119 O O O O O O O O O • 67 1.2 98% 18.49 141,960.79 22.26 140245.45 22,181 10508 2,027 72 34.033 1416 203 121 O O O O O O O O O • 64 1.0 98% 9.09 141,969.88 8.67 140254.13 22,183 10-15-08 2,036 162 34,195 1425 204 116 O O O O O O O O O • 61 0.9 99% 19.86 141,989.74 17.85 140,271.97 22,186 10.20-08 2,041 90 34,285 1429 204 113 O O O O O O O O O • 59 1.0 98% 10.08 141,999.83 9.32 14028129 22,187 10-29-08 1 2,050 162 34.447 1435 205 122 O O O O O O O O O • 57 0.8 99% 17.10 142,016.92 17.55 140,298.84 22,190 11.3-08 1 2,055 80 34.527 1439 206 118 O O O O O O O O O • 56 0.6 99% 8.81 142,025.73 827 140,307.11 22,192 11-10-08 1 2,062 143 34,670 1445 206 124 O O O O O O O O O • 52 1.0 98% 14.96 142,040.69 1428 140,321.39 22,194 11-17-08 2,069 172 34.842 1452 207 123 O O O O O O O O O • 33 0.8 98% 17.56 142,05825 10.75 140,332.14 22,197 11-23-08 2,075 187 359029 1460 209 118 O O O O O O O O O • 10.1 0.6 94% 12.02 142,070.26 329 140,335.44 22,198 12-5-08 2,087 241 70 0 212 124 O O O O O O O O O 13 0.5 98% 455 142074.81 9.8.1 140,345.25 22,199 18 28 4 O O O O O O 8.19 142,061.00 9.87 140,35512 2, 0 12-11-08 2,093 3 1478 • 23 12-15-0 2,097 96 35,514 1480 211 121 O O O O O O O O • 35 6.53 142,087.53 6.31 140,364 22,201 12-23-0 2,105 195 35,709 1488 213 118 O O O O O O O O O • 30.3 13.07 142,100.60 1083 140,3 Open= O Closed= • Partially open=PO ATTACHMENT 1. GROUNDWATER ELEVATION AND CONTAMINANT HISTOGRAMS MONITORING WELL VW-1d GROUNDWATER ELEVATION AND CONTAMINANT HISTOGRAM DOWNTOWN CHEVRON SERVICE STATION, BAKERSFIELD, CALIFORNIA 100,000,000 300 10,000,000 290 1,000,000 - 280 270 100,000 c -- � J 260 a p 10,000 d H 250 zo Z 1,000 Q 0 -- 240 V w 100 230 10 220 1 210 0 200 �P ^�\�'41 �\��\oti �\��\o� �\���o��o\���o� �o� �\��o� �\�A�o�moo\&Z �\�4Q �\�6�0� �\�A�o��o\���o� ��01 �\���01 �\^(P moo\^IiP 4Z DATE TPH as Gasoline A, Benzene — --MTBE —f—GW Elevation NDs for TPH as gasoline are displayed as the detection limit of 50 ug/I and NDs for benzene and MTBE are displayed as the detection limit of 0.5 ug/l. MONITORING WELL VW-1d GROUNDWATER ELEVATION AND FREE PRODUCT HISTOGRAM DOWNTOWN CHEVRON SERVICE STATION, BAKERSFIELD, CALIFORNIA 0.5 300 290 0.4 280 m 270 m w U J z 0.3 260 a Y m U m 2 � �- 250 z O Q H a O 0.2 240 w IL w IL w It u- 230 0.1 220 210 0.0 200 ^Po�oa DATE —�PSH —■—GW Elevation MONITORING WELL MW-1 GROUNDWATER ELEVATION AND CONTAMINANT HISTOGRAM DOWNTOWN CHEVRON SERVICE STATION, BAKERSFIELD, CALIFORNIA 100,000,000 300 10,000,000 290 1,000,000 280 270 100,000 p� J 260 Q O 10,000 H 250 z O w 1,000 a z 240 w O —� U W 100 - 230 10 220 1 210 01 200 �����\o���%\o��A\o���\o��\o��b\o����\o��6\0�^�o���\0�rp -,,�N\00�'�\0���\����\01�A\0��%\����\o���\Q1��A\Qo��\Q ^%\���^�\�����\��������\��^�\�� DATE —♦—TPH as Gasoline f Benzene —m—MTBE —E—GW Elevation NDs for TPH as gasoline are displayed as the detection limit of 50 ug/I and NDs for benzene and MTBE are displayed as the detection limit of 0.5 ug/I. MONITORING WELL MW-2 GROUNDWATER ELEVATION AND CONTAMINANT HISTOGRAM DOWNTOWN CHEVRON SERVICE STATION, BAKERSFIELD, CALIFORNIA 100,000,000 300 10,000,000 290 1,000,000 280 270 100,000 p� J 260 a Z 10,000 r= v 250 O w 1,000 Q 0 240 w v w 100 230 10 220 1 210 0 200 � � � o �°o \°�°o �°o N a oK °���o��\o�F' SAP SAP �`P �OF' �`F' ^°�°o^0001 ^°�°1 ^A�°A ^`�°1 �°goo DATE 1—*—TPH as Gasoline A, Benzene —i1--MTBE --w—GW Elevation NDs for TPH as gasoline are displayed as the detection limit of 50 ug/I and NDs for benzene and MTBE are displayed as the detection limit of 0.5 ug/I. MONITORING WELL MW-3 GROUNDWATER ELEVATION AND CONTAMINANT HISTOGRAM - DOWNTOWN CHEVRON SERVICE STATION, BAKERSFIELD,CALIFORNIA 100,000,000 300 10,000,000 290 1,000,000 280 270 100,000 J v 260 Q p 10,000 -- m 250 zo w 1,000 a 0 240 J v uj 100 - 230 10 220 1 210 0 200 DATE -t TPH as Gasoline & Benzene —I•t—MTBE —F GW Elevation NDs for TPH as gasoline are displayed as the detection limit of 50 ug/I and NDs for benzene and MTBE are displayed as the detection limit of 0.5 ug/I. MONITORING WELL MW-4 GROUNDWATER ELEVATION AND CONTAMINANT HISTOGRAM DOWNTOWN CHEVRON SERVICE STATION, BAKERSFIELD, CALIFORNIA 100,000,000 300 10,000,000 290 280 1,000,000 270 100,000 01 J 260 a 0 10,000 250 zo H w 1,000 a 0 240 J v w 100 230 10 220 1 210 0 200 t\�\00 00\00 P b�\�o\oo� 411i �o0 \o� �oh �\�oho\oh AP ^\�-\oo k\000\oo o\^A\oo 0\01 0P 1 o\oA 0\x1\01 o\ ow o\�OR, DATE - * TPH as Gasoline A, Benzene —lit—MTBE —m—GW Elevation NDs for TPH as gasoline are displayed as the detection limit of 50 ug/1 and NDs for benzene and MTBE are displayed as the detection limit of 0.5 ug/l. CONCENTRATION (ug/1) O s O O C) 0 0 0 C O C) O O O O O _ O O O O O O Qi2 0 o o O Co o O o 0 7�0 7 O 7, 72i00 0 z 19 O Fi C ;a 2o�°sr 0 0 z 3 /c,S�OQ 0 cn v' < 0 �pS 00 Z C ch m D m m , p�26,i a rm- ° m 0 0 X06, c0 0 m D Q S'O p CD N 2 fD p� = 2�� M 0 CD o N J °0 CL o p'7 0 ic 7 in OO r z � d �' �� Z m m CD �S� O .i a O, X _ a Tt, y CA O n� 76, -1 a CD 'per 0 CD y m ,70 a, m CD O� m m dpi r 7�p� CD CD 0 3' m zo 0 o 0-- �- LA T 0 o pS o c G7 m CL CD N N N N N N N N N N W < O N W A o1 O -4 O to O N O O O O O O O O O O O ELEVATION (feet ASL) . MONITORING WELL MW-5d GROUNDWATER ELEVATION AND CONTAMINANT HISTOGRAM DOWNTOWN CHEVRON SERVICE STATION,BAKERSFIELD,CALIFORNIA 100,000,000 300 10,000,000 290 1,000,000 280 270 100,000 p� J 260 a Z 10,000 m t— d 250 z0 H w 1,000 a Z 240 w O U tL 100 230 10 220 1 210 0 i 1 200 N b, otk�o\��\o� ���oh ��o\o� �\���oh�o\�o�oh �\���o�o �\�6�0�0 �\�o�oo \N "4' �\^001 �\^001 �\�0�01 0\'`�0� �o\�oo o\oN�oo DATE 1--*--TPH as Gasoline —*—Benzene —*—MTBE —E—GW Elevation NDs for TPH as gasoline are displayed as the detection limit of 50 ugA and NDs for benzene and MTBE are displayed as the detection limit of 0.5 ugA. MONITORING WELL MW-6 GROUNDWATER ELEVATION AND CONTAMINANT HISTOGRAM DOWNTOWN CHEVRON SERVICE STATION,BAKERSFIELD,CALIFORNIA 100,000,000 300 10,000,000 290 280 1,000,000 270 100,000 p� J 260 Q Z 10,000 250 zo w 1,000 a 0 240 J V w 100 230 10 220 1 210 0 200 tK\P\o� 0 0P ��oo �4Q P 4i ro\oR ti'1oK ti�o� h��\off ��\oh 0& h\Q o\oo o\oo X950 �0\01 ^6\1Z1 ^�\o'l ^0'1 �41"i ^4oi DATE 1--o—TPH as Gasoline - A Benzene —F MTBE —m GW Elevation NDs for TPH as gasoline are displayed as the detection limit of 50 ugA and NDs for benzene and MTBE are displayed as the detection limit of 0.5 ugA. MONITORING WELL MW-7 GROUNDWATER ELEVATION AND CONTAMINANT HISTOGRAM DOWNTOWN CHEVRON SERVICE STATION,BAKERSFIELD, CALIFORNIA 100,000,000 300 10,000,000 290 1,000,000 280 270 100,000 � J 260 a Z 10,000 m d H w v 250 0 w 1,000 Q 0 240 J U W 100 230 10 220 1 210 0 200 Off` Off` Off` Off` O� 00 O� O� Oro Oro Oro Oro O� O� O'A O 00 00 00 Op \�o,\ \dry\ ,\rte\ ^p\��y\ 41 �\�o�\ A\r� �p\�1\ ^\��\ �\�O\ A\r�\ �p\gyp\ ^\^p\ �\^� �\gyp\ �p\gyp\ p\ �\gyp\ p\��\ �p\ON\ DATE 1—*—TPH as Gasoline - * Benzene —11—MTBE f GW Elevation NDs for TPH as gasoline are displayed as the detection limit of 50 ug/I and NDs for benzene and MTBE are displayed as the detection limit of 0.5 ug/I. MONITORING WELL MW-8 GROUNDWATER ELEVATION AND CONTAMINANT HISTOGRAM DOWNTOWN CHEVRON SERVICE STATION,BAKERSFIELD, CALIFORNIA 100,000,000 300 10,000,000 290 1,000,000 - 280 270 100,000 p� J 260 a Z 10,000 v 250 0 w 1,000 a 0 240 uj U W 100 230 10 220 1 210 0 200 oK � o� °'p \CC j- �0Z X4111 �°�°Z X01" °�°° �b�°° �`'�o° ^A�°° ^`'\°Z 41 �°�°� �N\Q' ^1bP �b�°Z �N\°� �°'°� DATE 1—*—TPH as Gasoline Benzene —a—MTBE f GW Elevation NDs for TPH as gasoline are displayed as the detection limit of 50 ugA and NDs for benzene and MTBE are displayed as the detection limit of 0.5 ug/I. MONITORING WELL MW-8d GROUNDWATER ELEVATION AND CONTAMINANT HISTOGRAM DOWNTOWN CHEVRON SERVICE STATION, BAKERSFIELD, CALIFORNIA 100,000,000 300 10,000,000 290 1,000,000 280 270 100,000 p� J 260 a Z 10,000 250 zz w 1,000 a 0 -- 240 J Q w 100 • • • • • • • ♦ • • • • ♦ • • • • • 230 10 - 220 1 210 0 200 �\�o�o��o\�"�oa ^��oh �\���o� �\�.18P �o\�0Z �\���o� �\���o� �\�h4o��o\�-k�o� �\^��01 �\^��01 �\^A� �0\^001 ��o00 P \o� DATE 1-0--TPH as Gasoline Benzene -*-MTBE -i—GW Elevation NDs for TPH as gasoline are displayed as the detection limit of 50 ugA and NDs for benzene and MTBE are displayed as the detection limit of 0.5 ugA. MONITORING WELL MW-9 GROUNDWATER ELEVATION AND CONTAMINANT HISTOGRAM DOWNTOWN CHEVRON SERVICE STATION,BAKERSFIELD, CALIFORNIA 100,000,000 300 10,000,000 - 290 280 1,000,000 270 100,000 pM J 260 Q Z 10,000 i` 250 zo t- w 1,000 a 0 240 J U LU 100 • • —• • • ♦ • • • • • -� • ♦ 230 10 220 1 210 0 200 �tK 0� �tK 0b 0� �� �� 0� 0� Ilk 0� 0A �A r6l� 40 410 10r� DATE -♦-TPH as Gasoline Benzene MTBE -s-GW Elevation NDs for TPH as gasoline are displayed as the detection limit of 50 ugR and NDs for benzene and MTBE are displayed as the detection limit of 0.5 ug/I. MONITORING WELL MW-10 GROUNDWATER ELEVATION AND CONTAMINANT HISTOGRAM DOWNTOWN CHEVRON SERVICE STATION, BAKERSFIELD, CALIFORNIA 100,000,000 300 10,000,000 290 280 1,000,000 270 100,000 J 260 Q Z 10,000 250 Oz Z 1,000 a Z 240 O ui V 100 230 10 220 1 210 0 200 �\ooXo?K a o� 'bo�o� oh oo o 00 00 o oo K b \ \t ^ ooA N � �\� � ��ti � �\� � ��`� ��^ o�� 1^ �� 1 �� o o DATE —♦—TPH as Gasoline &Benzene —IF-MTBE GW Elevation NDs for TPH as gasoline are displayed as the detection limit of 50 ug/I and NDs for benzene and MTBE are displayed as the detection limit of 0.5 ug/I. MONITORING WELL MW-11 GROUNDWATER ELEVATION AND CONTAMINANT HISTOGRAM DOWNTOWN CHEVRON SERVICE STATION,BAKERSFIELD, CALIFORNIA 100,000,000 300 10,000,000 290 1,000,000 280 270 100,000 � J 260 a Z 10,000 -- m m 250 z0 Z 1,000 a Z 240 w O J v w 100 - 230 10 220 1 210 0 200 X6) \Orp �Orp Oro �O BOA X0A X0A X00 X00 00 NP lkl� r, Arp 40 rp DATE -♦-TPH as Gasoline Benzene MTBE f GW Elevation NDs for TPH as gasoline are displayed as the detection limit of 50 ug/I and NDs for benzene and MTBE are displayed as the detection limit of 0.5 ug/I. MONITORING WELL MW-12 GROUNDWATER ELEVATION AND CONTAMINANT HISTOGRAM DOWNTOWN CHEVRON SERVICE STATION, BAKERSFIELD,CALIFORNIA 100,000,000 300 10,000,000 290 1,000,000 280 270 100,000 M J 260 a Z 10,000 H 250 zo w 1,000 Q 0 240 J C.) w 100 230 10 - 220 1 210 0 200 o`oo�oa o\���oN ^o�o� `'\doh �\���o� o\�o�oh �\�o�oo �\���oo �\�tK\ o\�o�oo �\�0�01 �\^�oA �\^4 �0\^'Z\ 400 �\^��oo o\���oo^oPo�oo DATE - s TPH as Gasoline &Benzene —IF-MTBE --■—GW Elevation NDs for TPH as gasoline are displayed as the detection limit of 50 ugA and NDs for benzene and MTBE are displayed as the detection limit of 0.5 ugA. MONITORING WELL MW-13 GROUNDWATER ELEVATION AND CONTAMINANT HISTOGRAM DOWNTOWN CHEVRON SERVICE STATION, BAKERSFIELD, CALIFORNIA 100,000,000 300 10,000,000 290 280 1,000,000 270 100,000 °1 260 vi 3 Q ZO 10,000 a~ 250 Z F O w 1,000 Q Z 240 w O J V w 100 230 10 220 1 210 0 200 ff` Otk OD O� O� O� OIrO OHO O'rO 06 OA 0A 01 0A O`b O� 00 O� 'IF, �\ 'L�\ h\� '1��0\ 6\ g� �\ �\ �0'��\ '��^�\ D�^O\ 'l�^O\ ,�0�^O\ �L��\ D�^�\ 0���\ 0\ DATE —* TPH as Gasoline * Benzene —F-MTBE —a—GW Elevation NDs for TPH as gasoline are displayed as the detection limit of 50 ug/I and NDs for benzene and MTBE are displayed as the detection limit of 0.5 ug/I. MONITORING WELL MW-14 GROUNDWATER ELEVATION AND CONTAMINANT HISTOGRAM DOWNTOWN CHEVRON SERVICE STATION, BAKERSFIELD, CALIFORNIA 100,000,000 300 10,000,000 290 1,000,000 280 270 100,000 t J 260 a p 10,000 m v 250 zo w 1,000 a Z 240 J 0 w U 100 - 230 10 220 1 210 0 200 �\�o�o� o\���orx oh A�oh o� � �\���o� �o� � 1 1 1 1 o� � �o� � DATE 1—+—TPH as Gasoline —A Benzene --w—MTBE —0—GW Elevation II for TPH as gasoline are displayed as the detection limit of 50 ug/I and NDs for benzene and MTBE are displayed as the detection limit of 0.5 ug/I. MONITORING WELL EW-1 GROUNDWATER ELEVATION AND CONTAMINANT HISTOGRAM DOWNTOWN CHEVRON SERVICE STATION,BAKERSFIELD,CALIFORNIA 100,000,000 300 10,000,000 290 280 1,000,000 270 100,000 p� J 260 a Z 10,000 H 250 zz Z 1,000 a 0 240 J v uj 100 230 10 220 1 210 0 200 6\o�1� -,\Q o\��\orx ��\oh h�`�\o� �tiA\o� �tio\o��\��\oo��`�o\oo��`�A\oo o\�-b\oo�\^�\01 �\^b\01�\�0\010���0� DATE 1—+—TPH as Gasoline Benzene —>tt—MTBE GW Elevation NDs for TPH as gasoline are displayed as the detection limit of 50 ug/I and NDs for benzene and MTBE are displayed as the detection limit of 0.5 ug/I. ATTACHMENT 2. GROUNDWATER MONITORING, SAMPLING, SAMPLE MANAGEMENT PROCEDURES GROUNDWATER MONITORING, SAMPLING,AND SAMPLE MANAGEMENT PROCEDURES NOTIFICATIONS Prior to performing any field work, the client, regulatory agency, and property owner/manager with jurisdiction over the subject site are notified. Notifications are made a minimum of 48 hours prior to sampling, or as required by the client or regulator. WATER LEVEL MEASUREMENTS Prior to performing purge or no-purge sampling, water level measurements are collected according to the following procedures: • All wells are checked for phase-separated hydrocarbons with an acrylic bailer or oil/water interface meter. • To avoid cross contamination, water levels are measured starting with the historically "cleanest' wells and proceeding to the historically"dirtiest." • Water levels within each well are measured to an accuracy of±0.01 foot using an electric measuring device and are referenced to the surveyed datum (well cover or top of casing). When measuring to top of casing, measurements are made to the notched (or otherwise marked) point on casing. If no marking is visible, the measurement is made to the northern side of the casing. • If possible, all wells are gauged within a short time interval on the same day to obtain accurate measurements of the potentiometric surface. • All measurements are reproduced to assure validity, and measuring equipment is decontaminated between wells. PHASE-SEPARATED HYDROCARBON If phase-separated hydrocarbon (PSH) is encountered, its thickness in the well and the depth to the interface between the PSH and the water in the well are measured using one or both of the following methods: • an electronic oil-water interface meter is used to measure the depths to the top of the PSH and to the top of the water, and/or • an electronic water level meter is used to measure the depth to the top of the water and a clear bailer is used to measure the PSH thickness. The potentiometeric surface elevation is calculated as: TOC—DTW+0.74PT Where TOC=top-of-casing elevation, DTW=depth to water(interface),and PT= PSH thickness. If PSH thickness is less than 0.02 foot, and the well is planned for purging prior to sample collection, the well is purged and sampled in accordance with the sample collection section of this SOP. If the PSH thickness is 0.02 foot or greater,the PSH is bailed from the well, and left onsite in a labeled and sealed container. No sample is collected for analysis from wells having a PSH thickness of greater than 0.02 foot. Groundwater Monitoring, Sampling, and Sample Management Procedures Page 2 NO-PURGE SAMPLING Well purging is not conducted prior to sampling if purging is not needed to meet technical and/or regulatory project requirements. Following collection of water level measurements,wells that are not purged are sampled according to the protocol in the sample collection section of this SOP. PURGING PROCEDURES Well purging is conducted prior to sampling if purging is needed to meet technical and/or regulatory project requirements. If purging is conducted, the monitoring wells are purged using a vacuum truck, submersible electric pump, bailer, hand pump, or bladder pump, as appropriate for site conditions. A surge block may be used if it becomes apparent during purging that the well screen has become bridged with sediment or the produced groundwater is overly turbid. During the purging process, groundwater is monitored for temperature, pH, conductivity, turbidity, odor, and color. These parameters are recorded on a water sample log. Purging continues until all stagnant water within the wells is replaced by fresh formation water, as indicated by removal of a minimum number of well volumes and/or stabilization of the above-outlined parameters. Sampling.is performed after the well recharges to at least 80 percent of hydrostatic. Purge water is stored on site in Department of Transportation-approved, 55-gallon drums until water sample analytical results are received from the laboratory. If active groundwater treatment is occurring at the site, purge water may be disposed of through the treatment system, or the purge water may be transported off site as non- hazardous waste to an approved off-site disposal facility. If permanent pumps are installed in the wells for groundwater remediation, purging may be accomplished by operating the pumps for at least 24 hours before sampling to ensure adequate purging. SAMPLE COLLECTION PROCEDURES Groundwater samples are collected as follows: • A 1-liter TeflonTm bailer is lowered and partially submerged into the well water to collect a groundwater sample. • If visible PSH is present in the sample bailer, PSH'thickness is recorded on the field log, and no sample is collected for laboratory analysis. • For volatile organic analyses, groundwater samples are collected in chilled, 40-milliliter, VOA vials having Teflon TM-lined caps. Hydrochloric acid preservative is added to all vials by the laboratory to lower sample pH to 2. Samples are held at 2 to 4°C while in the field and in transit to the laboratory. Other appropriate containers, preservatives, and holding protocols are used for non-volatile analyses. • VOA vials are filled completely so that no headspace or air bubbles are present within the vial. Care is taken so that the vials are not overfilled and the preservative is not lost. • Sample containers are immediately labeled and sealed after collection to prevent confusion. For VOA vials, the label is placed to overlap the edge of the cap as a custody seal, unless a separate custody seal is being used. • Samples are stored in a cooler while on site and in transport to the laboratory or office. The cooler has sufficient ice to maintain appropriate temperature prior to collecting samples. The VOA vials are kept cool both prior to and after filling. Hot or warm containers are not used when volatile compounds are the target analytes. 1 Groundwater Monitoring, Sampling, and Sample Management Procedures Page 3 DECONTAMINATION PROCEDURES Decontamination of monitoring and sampling equipment is performed prior to all monitoring and sampling activities. Decontamination procedures utilize a three-step process as described below: • The initial decontamination is performed using a non-phosphate soap, such as Simple Green or Alconox, in tap water in a 5-gallon bucket. A soft-bristle bottlebrush is used to thoroughly clean the inside and outside of the equipment. • A second 5-gallon bucket of tap water is used as a first rinse. • A third 5-gallon bucket of deionized water is used as a final rinse. • The brush is used in the first bucket only; it does not travel from bucket to bucket with the equipment. This minimizes any transport of the contaminants that should stay in the first bucket. QUALITY ASSURANCE/QUALITY CONTROL SAMPLES At a minimum,a trip blank and a temperature blank are maintained for QA/QC purposes. • A trip blank sample (TRIP) is kept with any samples being analyzed for VOCs. This is a sample of clean water that is supplied by the laboratory and is transported to and from the field and to the laboratory with the field samples. The designation"QCTRIPBK'or"QCTB" is used for sample name on the field label. Samplers record the date that the TRIP is taken to the field for sampling, not the date that the TRIP was prepared by the laboratory on the chain-of-custody(COC). One TRIP per cooler per day is collected. Unused trip blank samples are stored at the consulting office in a cooler dedicated to this purpose. The trip blank cooler is not refrigerated, but is kept in a clean location away from possible VOC contaminants. • Temperature blank sample containers are supplied by the laboratory and kept in a cooler used to transport samples. The temperature blank is placed in the cooler prior to going to the field and kept there until the cooler is delivered to the laboratory. COMPLETION OF CHAIN OF CUSTODY • A separate COC is completed for each day of sampling. If samples are collected on separate days for the same site, a separate COC is completed for each sampling day, and the COC is always kept with the samples. If samples are shipped off site for laboratory analysis, individual coolers with separate COCs are sent for each day/cooler shipped. • All fields/spaces on the COC are filled out completely, and all persons having control of the samples sign the COC to show transfer of sample control between individuals. At times when the field sampler is not delivering samples directly to the laboratory, the samples may be turned over to a sample manager for shipping. In this instance, the sample manager takes custody of the samples, and both the sampler and sample manager sign and date the COC to clearly show custody transfer. • The COC is placed inside the cooler, and a custody seal is placed on the outside of the cooler prior to shipping. The receiving laboratory indicates if the cooler was received with the custody seal intact. • If samples are sent to the laboratory via UPS, FEDEX, etc., this is indicated on the COC, and the sample manager indicates the date and time custody seal is placed on cooler for delivery to the shipping agent (shipping agent does not sign the COC). • For trip blanks, the COC indicates the date the TRIP was taken to the field for sampling, not the date the TRIP was prepared by the laboratory,which may appear on the VOA label. Groundwater Monitoring, Sampling, and Sample Management Procedures Page 4 • New electronic deliverable format(EDF) requirements of California AB2886 mandate that COCs and laboratory reports maintain consistent and unique names between sites(Global ID)and sample location/well names (Field Point ID). This information must be consistent with the initial information supplied to Geotracker, and for each subsequent quarterly sampling event. SAMPLE HANDLING Refrigerator Storage and Temperature Log Samples may be stored in a refrigerator at the consulting office prior to transport to the laboratory. Refrigerator storage is maintained under the following conditions: • Refrigerators used for sample storage are dedicated for that usage only (no food or other materials are stored in sample refrigerators). • Refrigerators can be locked from the outside by a sample manager, and only the sample manager has access to samples while in storage. • Refrigerators are maintained at temperatures between 2 to 4'C, and are adjusted daily depending on thermometer readings. • Each refrigerator contains a dedicated, reliable thermometer. The thermometer is designed for use in a refrigerator and is fixed/secured to the inside of the unit. The thermometer range is specific for measuring temperatures in the 2 to 4•C range. • A temperature log is kept on the outside of the refrigerator in a lightweight, three-ring binder, or similar logbook. Temperatures are recorded daily or when the refrigerator is open for sample management. • Completed COCs are kept with the samples stored in the refrigerators. The COCs may be held on a clipboard outside the refrigerator, or may be placed inside the cooler if the entire cooler is placed inside the refrigerator. • If a cooler is placed in the refrigerator,the cooler lid remains open to insure that samples are maintained at the refrigerator temperature. Cooler Packing The sample coolers are packed as directed by the receiving laboratory. Standard procedures for cooler packing include: • The cooler contains enough ice to maintain the required temperature of 2 to 4•C (roughly 20 percent of the volume of the cooler). • Water ice(not dry ice or ice packs)is used for shipping. • The ice is placed above and below the samples in at least two sealable plastic bags. This requires that the packing/divider material is removed and replaced. • The COC is placed in the cooler in a sealed plastic bag, and the cooler lid is taped closed to secure it for transport and to minimize loss of temperature. A custody seal is placed vertically across the seam of the cooler lid. J ATTACHMENT 3. WATER SAMPLE LOGS WATER SAMPLE LOG Date: October 31, 2008 Client: Sullivan Petroleum Company,LLC Well Number: VW-1d Project Name: Downtown Chevron Well Depth: 116.28' Well Casing Diameter: 2° Weather Conditions: cloudy and windy Observation/Comments: Well dry, no sample collected (e.g., floating layer, odor, color) Quality Assurance Water Sampling Method: TeflonTm bailer Water Level Measurement Method: Electronic water level meter Pump Lines/Bailer Ropes: Cleaned Method of Cleaning Bailer/Pump: QA/QC Method of Purging Water: Bailer pH Meter: Oakton Calibrated: Yes Specific Conductance Meter: Oakton Calibrated: Checked Comments: pH STD. Calibration STD. Field Temp. °C 4 34170-127 4 7 34170-130 7 Date Time Discharge Temp. pH Conductivity Color Odor Turbidity(NTU's) (gallons) (°C) Tpmhos/cm)field @ 10/31/08 0815 Depth to Groundwater at Start of Purging: DRY Depth to Groundwater at End of Purging: N/A F- I Depth to Groundwater at Sampling: N/A Total Discharge: N/A Casing Volumes Removed: N/A Method of Disposal of Discharged Water: N/A Sample Containers Filled: N/A Water Sample Description (e.g., color,turbidity): N/A Sample Identification Numbers: VW-1d Data Collected By: Sheldon Hood 4660 California Avenue, Suite 110 Bakersfield, CA 93309 (661) 631-VE I R (8347) FAX (661) 631-8007 WATER SAMPLE LOG Date: October 31, 2008 Client: Sullivan Petroleum Company,LLC Well Number: MW-1 Project Name: Downtown Chevron Well Depth: 124.53' Well Casing Diameter: 2° Weather Conditions: cloudy and windy Observation/Comments: Well dry, no sample collected (e.g., floating layer, odor, color) Quality Assurance Water Sampling Method: TeflonTm bailer Water Level Measurement Method: Electronic water level meter Pump Lines/Bailer Ropes: Cleaned Method of Cleaning Bailer/Pump: QA/QC Method of Purging Water: Bailer pH Meter: Oakton Calibrated: Yes Specific Conductance Meter: Oakton Calibrated: Checked Comments: pH STD. Calibration STD. Field Temp. °C 4 34170-127 4 7 34170-130 7 Date Time Discharge Temp. pH Conductivity Color Odor Turbidity(NTU's) (gallons) (°Q I (pmhos/cm)field @ 10/31/08 0745 Depth to Groundwater at Start of Purging: DRY Depth to Groundwater at End of Purging: N/A Depth to Groundwater at Sampling: N/A Total Discharge: N/A Casing Volumes Removed: N/A Method of Disposal of Discharged Water: N/A Sample Containers Filled: N/A Water Sample Description (e.g., color, turbidity): N/A Sample Identification Numbers: MW-1 Data Collected By: Sheldon Hood v�IR Cow 4560 California Avenue, Suite 110 Bakersfield, CA 93309 (661) 631-VE I R (8347) FAX (661) 631-8007 WATER SAMPLE LOG Date: October 31, 2008 Client: Sullivan Petroleum Company,LLC Well Number: MW-2 Project Name: Downtown Chevron Well Depth: 123.41' Well Casing Diameter: 2" Weather Conditions: cloudy and windy Observation/Comments: Well dry, no sample collected (e.g., floating layer, odor, color) Quality Assurance Water Sampling Method: Teflon TM bailer Water Level Measurement Method: Electronic water level meter Pump Lines/Bailer Ropes: Cleaned Method of Cleaning Bailer/Pump: QA/QC Method of Purging Water: Bailer PH Meter: Oakton Calibrated: Yes Specific Conductance Meter: Oakton Calibrated: Checked Comments: pH STD. Calibration STD. Field Temp. *C 4 34170-127 4 7 34170-130 7 rbidity(NTU's) Date Time Discharge Temp. pH Conductivity Color Odor T (gallons) (°C) (Nmhos/cm)field @ 10/31/08 0720 Depth to Groundwater at Start of Purging: DRY Depth to Groundwater at End of Purging: N/A Depth to Groundwater at Sampling: N/A Total Discharge: N/A Casing Volumes Removed: N/A Method of Disposal of Discharged Water: N/A Sample Containers Filled: N/A Water Sample Description (e.g., color,turbidity): N/A Sample Identification Numbers: MW-2 Data Collected By: Sheldon Hood -PT-T co Y; 4660 California Avenue, Suite 110 Bakersfield, CA 93309 (661) 631-VEI R (8347) FAX (661) 631-8007 e � WATER SAMPLE LOG Date: October 31, 2008 Client: Sullivan Petroleum Company,LLC Well Number: MW-3 Project Name: Downtown Chevron Well Depth: 121.45' Well Casing Diameter: 2° Weather Conditions: cloudy and windy Observation/Comments: Well dry, no sample collected (e.g., floating layer, odor, color) Quality Assurance Water Sampling Method: TeflonTm bailer Water Level Measurement Method: Electronic water level meter Pump Lines/Bailer Ropes: Cleaned Method of Cleaning Bailer/Pump: QA/QC Method of Purging Water: Bailer pH Meter: Oakton Calibrated: Yes Specific Conductance Meter: Oakton Calibrated: Checked Comments: pH STD. Calibration STD. Field Temp. °C 4 34170-127 4 7 34170-130 7 ity (NTU's) Date Time Discharge Temp. pH Conductivity Color Odor Turbid (gallons) (°C) (pmhos/cm)field @ 10/31/08 0700 Depth to Groundwater at Start of Purging: DRY Depth to Groundwater at End of Purging: N/A Depth to Groundwater at Sampling: N/A Total Discharge: N/A Casing Volumes Removed: N/A Method of Disposal of Discharged Water: N/A Sample Containers Filled: N/A Water Sample Description (e.g., color, turbidity): N/A Sample Identification Numbers: MW-3 Data Collected By: Sheldon Hood -P.LFR Cow 4660 California Avenue, Suite 110 Bakersfield, CA 93309 (661) 631-VE I R (8347) FAX (661) 631-8007 WATER SAMPLE LOG Date: October 30, 2008 Client: Sullivan Petroleum Company,LLC Well Number: MW-4 Project Name: . Downtown Chevron Well Depth: 132.99' Well Casing Diameter: 2° Weather Conditions: cloudy and windy Observation/Comments: No floating layer, no petroleum hydrocarbon odor (e.g., floating layer, odor, color) Quality Assurance Water Sampling Method: TeflonTm bailer Water Level Measurement Method: Electronic water level meter Pump Lines/Bailer Ropes: Cleaned Method of Cleaning Bailer/Pump: QA/QC Method of Purging Water: . Bailer pH Meter: Oakton Calibrated: Yes Specific Conductance Meter: Oakton Calibrated: Checked Comments: pH STD. Calibration STD. Field Temp. °C 4 34170-127 4 7 34170-130 7 Date Time Discharge Temp. pH Conductivity Color Odor Turbidity(NTU's) (gallons) (°C) (pmhos/cm)field @ 10/30/08 1410 Depth to Groundwater at Start of Purging: 127.30' 10/30/08 1425 1.5 23.6 7.81 766 tan none 384 10/30/08, 1445 3.0 23.1 7.00 683 tan none 596 10/30/08 1500 4.5 22.8 6.95 716 tan none 623 10/30/08 1505 Depth to Groundwater at End of Purging: 130.63' 10/30/08 1515 Depth to Groundwater at Sampling: 130.89' Total Discharge: 4.5 gallons Casing Volumes Removed: 3 Method of Disposal of Discharged Water: Stored on-site in 55-gallon drums Sample Containers Filled: Four VOA vials Water Sample Description (e.g., color, turbidity): tan color, turbidity 623 Sample Identification Numbers: MW-4 Data Collected By: Sheldon Hood -VErw cow 4560 California Avenue, Suite 110 Bakersfield, CA 93309 (661) 631-VE I R (8347) FAX (661) 631-8007 WATER SAMPLE LOG Date: October 31, 2008 Client: Sullivan Petroleum Company,LLC Well Number: MW-5 Project Name: Downtown Chevron Well Depth: 139.00' Well Casing Diameter: 2" Weather Conditions: cloudy and windy Observation/Comments: No floating layer, no petroleum hydrocarbon odor (e.g., floating layer, odor, color) Quality Assurance Water Sampling Method: TeflonTm bailer Water Level Measurement Method: Electronic water level meter Pump Lines/Bailer Ropes: Cleaned Method of Cleaning Bailer/Pump: QA/QC Method of Purging Water: Bailer pH Meter: Oakton Calibrated: Yes Specific Conductance Meter: Oakton Calibrated: Checked Comments: pH STD. Calibration STD. Field Temp. 'C 4 34170-127 4 7 34170-130 7 Date Time Discharge Temp. pH T(pmhos/cm)Conductivity Color Odor Turbidity (NTU's) (gallons) (°Q field @ F 10/31/08 1310 Depth to Groundwater at Start of Purging: 129.20' 10/31/08 1325 1.5 23.6 7.99 588 tan none 610 10/31/08 1 1340 3.0 22.5 8.03 546 tan none 609 10/31/08 1405 4.5 22.8 7.51 559 tan none 534 10/31/08 1410 Depth to Groundwater at End of Purging: 141.83' 10/31/08 1425 Depth to Groundwater at Sampling: 142.08' Total Discharge: 4.5 gallons Casing Volumes Removed: 3 Method of Disposal of Discharged Water: Stored on-site in 55-gallon drums Sample Containers Filled: Four VOA vials Water Sample Description (e.g., color, turbidity): tan color, turbidity 534 Sample Identification Numbers: MW-5 Data Collected By: Sheldon Hood -Ymw Cow 4560 California Avenue, Suite 110 Bakersfield, CA 93309 (661) 631-VE I R (8347) FAX (661) 631-8007 WATER SAMPLE LOG Date: October 31, 2008 Client: Sullivan Petroleum Company,LLC Well Number: MW-5d Project Name: Downtown Chevron Well Depth: 168.03' Well Casing Diameter: 2° Weather Conditions: cloudy and windy Observation/Comments: No floating layer, no petroleum hydrocarbon odor (e.g., floating layer, odor, color) Quality Assurance Water Sampling Method: TeflonTm bailer Water Level Measurement Method: Electronic water level meter Pump Lines/Bailer Ropes: Cleaned Method of Cleaning Bailer/Pump: QA/QC Method of Purging Water: Bailer pH Meter: Oakton Calibrated: Yes Specific Conductance Meter: Oakton Calibrated: Checked Comments: pH STD. Calibration STD. Field Temp. *C 4 34170-127 4 7 34170-130 7 Date Time Discharge Temp. pH Conductivity Color Odor Turbidity(NTU's) (gallons) (°C) (pmhos/cm)field @ 10/31/08 1210 Depth to Groundwater at Start of Purging: 129.95' 10/31/08 1225 6 23.5 7.91 384 clear none 23.4 10/31/08 1239 12 23.4 7.63 410 clear none 33.1 10/31/08 1250 18 22.8 7.36 351 clear none 26.3 10/31/08 1255 Depth to Groundwater at End of Purging: 138.43' 10/31/08 1301 Depth to Groundwater at Sampling: 138.69' Total Discharge: 18 gallons Casing Volumes Removed: 3 Method of Disposal of Discharged Water: Stored on-site in 55-gallon drums Sample Containers Filled: Four VOA vials Water Sample Description (e.g., color, turbidity): no color/turbidity 26.3 Sample Identification Numbers: MW-5d Data Collected By: Sheldon Hood vyl.7z cow 4560 California Avenue, Suite 110 Bakersfield, CA 93309 (661) 631-VE I R (8347) FAX (661) 631-8007 WATER SAMPLE LOG Date: October 31, 2008 Client: Sullivan Petroleum Company,LLC Well Number: MW-6 Project Name: Downtown Chevron Well Depth: 104.00' Well Casing Diameter: 2° Weather Conditions: cloudy and windy Observation/Comments: Well dry, no sample collected (e.g., floating layer, odor, color) Quality Assurance Water Sampling Method: TeflonTm bailer Water Level Measurement Method: Electronic water level meter Pump Lines/Bailer Ropes: Cleaned Method of Cleaning Bailer/Pump: QA/QC Method of Purging Water: Bailer pH Meter: Oakton Calibrated: Yes Specific Conductance Meter: Oakton Calibrated: Checked Comments: pH STD. Calibration STD. Field Temp. °C 4 34170-127 4 7 34170-130 7 Date Time Discharge Temp: pH Conductivity Color Odor Turbidity(NTU's) (gallons) (°C) (pmhos/cm)field @ 10/31/08 0630 Depth to Groundwater at Start of Purging: DRY Depth to Groundwater at End of Purging: N/A Depth to Groundwater at Sampling: N/A Total Discharge: N/A Casing Volumes Removed: N/A Method of Disposal of Discharged Water: N/A Sample Containers Filled: N/A Water Sample Description (e.g., color,turbidity): N/A Sample Identification Numbers: MW-6 Data Collected By: Sheldon Hood -Ymw cow 4660 California Avenue, Suite 110 Bakersfield, CA 93309 (661) 631-VE I R (8347) FAX (661) 631-8007 WATER SAMPLE LOG Date: October 31, 2008 Client: Sullivan Petroleum Company,LLC Well Number: MW-7 Project Name: Downtown Chevron Well Depth: 137.89' Well Casing Diameter: 2" Weather Conditions: cloudy and windy Observation/Comments: Grab sample collected (e.g., floating layer, odor, color) Quality Assurance Water Sampling Method: TeflonTm bailer Water Level Measurement Method: Electronic water level meter Pump Lines/Bailer Ropes: Cleaned Method of Cleaning Bailer/Pump: QA/QC Method of Purging Water: Bailer pH Meter: Oakton Calibrated: Yes Specific Conductance Meter: Oakton Calibrated: Checked Comments: pH STD. Calibration STD. Field Temp. °C 4 34170-127 4 7 34170-130 7 Date Time Discharge Temp. pH Conductivity I Color Odor Turbidity(NTU's) (gallons) (°Q I (pmhos/cm)field @ 10/31/08 1400 Depth to Groundwater at Start of Purging: 136.51' 10/31/08 1458 Depth to Groundwater at End of Purging: 137.83' 10/31/08 1505 Depth to Groundwater at Sampling: 137.83' Total Discharge: N/A Casing Volumes Removed: N/A Method of Disposal of Discharged Water: N/A Sample Containers Filled: N/A Water Sample Description (e.g., color,turbidity): Grab Sample Collected Sample Identification Numbers: MW-7 Data Collected By: Sheldon Hood ?l ,N Cow 4560 California Avenue, Suite 110 Bakersfield, CA 93309 (661) 631-VEIR (8347) FAX (661) 631-8007 a. WATER SAMPLE LOG Date: October 30, 2008 Client: Sullivan Petroleum Company,LLC Well Number: MW-8 Project Name: Downtown Chevron Well Depth: 149.30' Well Casing Diameter: 2" Weather Conditions: sunny and windy Observation/Comments: No floating layer,'no petroleum hydrocarbon odor (e.g., floating layer, odor, color) Quality Assurance Water Sampling Method: Teflon TM bailer Water Level Measurement Method: Electronic water level meter Pump Lines/Bailer Ropes: Cleaned Method of Cleaning Bailer/Pump: QA/QC Method of Purging Water: Bailer pH Meter: Oakton Calibrated: Yes Specific Conductance Meter: Oakton Calibrated: Checked Comments: pH STD. Calibration STD. Field Temp. °C 4 34170-127 4 7 34170-130 7 Date Time Discharge Temp. PH Conductivity Color Odor Turbidity(NTU's) (gallons) (°C) I I (pmhos/cm)field @ 10/30/08 1230 Depth to Groundwater at Start of Purging: 137.90' 10/30/08 1245 2 23.1 7.77 696 clear none 26.9 10/30/08 1300 4 22.3 7.00 710 clear none 19.1 10/30/08 1316 6 22.9 6.96 655 clear none 24.3 10/30/08 1325 Depth to Groundwater at End of Purging: 140.18' 10/30/08 1338 Depth to Groundwater at Sampling: 140.29' Total Discharge: 6 gallons Casing Volumes Removed: 3 Method of Disposal of Discharged Water: Stored on-site in 55-gallon drums Sample Containers Filled: Four VOA vials Water Sample Description (e.g., color, turbidity): no color, turbidity 24.3 Sample Identification Numbers: MW-8 Data Collected By: Sheldon Hood vy--,r-w cow 4560 California Avenue, Suite 110 Bakersfield, CA 93309 (661) 631-VE I R (8347) FAX (661) 631-8007 d WATER SAMPLE LOG Date: October 30, 2008 Client: Sullivan Petroleum Company,LLC Well Number: MW-8d Project Name: Downtown Chevron Well Depth: 180.01' Well Casing Diameter: 2° Weather Conditions: cloudy and windy Observation/Comments: No floating layer, no petroleum hydrocarbon odor (e.g., floating layer, odor, color) Quality Assurance Water Sampling Method: TeflonTm bailer Water Level Measurement Method: Electronic water level meter Pump Lines/Bailer Ropes: Cleaned Method of Cleaning Bailer/Pump: QA/QC Method of Purging Water: Bailer pH Meter: Oakton Calibrated: Yes Specific Conductance Meter: Oakton Calibrated: Checked Comments: pH STD. Calibration STD. Field Temp. °C 4 34170-127 4 7 34170-130 7 Date Time Discharge Temp. pH Conductivity Color Odor Turbidity(NTU's) (gallons) (°C) (pmhos/cm)field @ 10/30/08 1045 Depth to Groundwater at Start of Purging: 138.40' 10/30/08 1100 6 23.9 8.46 410 clear none 36.4 10/30/08 1 1130 12 23.4 8.11 396 clear none 44.4 10/30/08 1145 18 22.6 7.37 384 clear none 21.3 10/30/08 1150 Depth to Groundwater at End of Purging: 151.30' 10/30/08 1200 Depth to Groundwater at Sampling: 151.93' Total Discharge: 18 gallons Casing Volumes Removed: 3 Method of Disposal of Discharged Water: Stored on-site in 55-gallon drums Sample Containers Filled: Four VOA vials Water Sample Description (e.g., color,turbidity): no color, turbidity 21.3 Sample Identification Numbers: MW-8d Data Collected By: Sheldon Hood -YT.,r-w Cow 4560 California Avenue, Suite 110 Bakersfield, CA 93309 (661) 631-VE I R (8347) FAX (661) 631-8007 WATER SAMPLE LOG Date: December 30, 2008 Client: Sullivan Petroleum Company,LLC Well Number: MW-9 Project Name: Downtown Chevron Well Depth: 136.12' Well Casing Diameter: 2° Weather Conditions: Sunny Observation/Comments: Grab Sample collected (e.g., floating layer, odor, color) Quality Assurance Water Sampling Method: TeflonTm bailer Water Level Measurement Method: Electronic water level meter Pump Lines/Bailer Ropes: Cleaned Method of Cleaning Bailer/Pump: QA/QC Method of Purging Water: Bailer pH Meter: Oakton Calibrated: Yes Specific Conductance Meter: Oakton Calibrated: Checked Comments: pH STD. Calibration STD. Field Temp. °C 4 34170-127 4 7 34170-130 7 Date Time Discharge Temp, pH Conductivity I Color Odor Turbidity(NTU's) (gallons) I (°Q) (pmhos/cm)field @ 12/30/08 0936 Depth to Groundwater at Start of Purging: 134.32' Depth to Groundwater at End of Purging: N/A Depth to Groundwater at Sampling: N/A Total Discharge: N/A Casing Volumes Removed: N/A Method of Disposal of Discharged Water: N/A Sample Containers Filled: N/A Water Sample Description (e.g., color,turbidity): Grab sample collected Sample Identification Numbers: MW-9 Data Collected By: Sheldon Hood -Ymw cam 4660 California Avenue, Suite 110 Bakersfield, CA 93309 (661) 631-VE I R (8347) FAX (661) 631-8007 WATER SAMPLE LOG Date: October 31, 2008 Client: Sullivan Petroleum Company,LLC Well Number: MW-10 Project Name: Downtown Chevron Well Depth: 132.45' Well Casing Diameter: 2" Weather Conditions: cloudy and windy Observation/Comments: Grab sample collected (e.g., floating layer, odor, color) Quality Assurance Water Sampling Method: Teflon TM bailer Water Level Measurement Method: Electronic water level meter Pump Lines/Bailer Ropes: Cleaned Method of Cleaning Bailer/Pump: QA/QC Method of Purging Water: Bailer pH Meter: Oakton Calibrated: Yes Specific Conductance Meter: Oakton Calibrated: Checked Comments: pH STD. Calibration STD. Field Temp. °C 4 34170-127 4 7 34170-130 7 Date Time Discharge Temp. pH Conductivity Color Odor Turbidity(NTU's) (gallons) (°C) I (pmhos/cm)field @ 10/31/08 0855 Depth to Groundwater at Start of Purging: 127.50' 10/31/08 0919 Depth to Groundwater at End of Purging: 127.83' 10/31/08 1 0920 Depth to Groundwater at Sampling: 127.83' Total Discharge: N/A Casing Volumes Removed: N/A Method of Disposal of Discharged Water: N/A Sample Containers Filled: N/A Water Sample Description (e.g., color, turbidity): N/A Sample Identification Numbers: MW-10 Data Collected By: Sheldon Hood ?Ymw Cow 4660 California Avenue, Suite 110 Bakersfield, CA 93309 (661) 631-VEI R (8347) FAX (661) 631-8007 WATER SAMPLE LOG Date: October 31, 2008 Client: Sullivan Petroleum Company,LLC Well Number: MW-11 Project Name: Downtown Chevron Well Depth: 126.00' Well Casing Diameter: 2° Weather Conditions: cloudy and windy Observation/Comments: Well dry, no sample collected (e.g., floating layer, odor, color) Quality Assurance Water Sampling Method: TeflonTm bailer Water Level Measurement Method: Electronic water level meter Pump Lines/Bailer Ropes: Cleaned Method of Cleaning Bailer/Pump: QA/QC Method of Purging Water: Bailer pH Meter: Oakton Calibrated: Yes Specific Conductance Meter: Oakton Calibrated: Checked Comments: pH STD. Calibration STD. Field Temp. °C 4 34170-127 4 7 34170-130 7 Date Time Discharge Temp. pH Conductivity Color Odor Turbidity(NTU's) (gallons) (°C) I I (pmhos/cm)field @ 10/31/08 0840 Depth to Groundwater at Start of Purging: DRY Depth to Groundwater at End of Purging: N/A Depth to Groundwater at Sampling: N/A Total Discharge: N/A Casing Volumes Removed: N/A Method of Disposal of Discharged Water: N/A Sample Containers Filled: N/A Water Sample Description (e.g., color,turbidity): N/A Sample Identification Numbers: MW-11 Data Collected By: Sheldon Hood -Ymw coY� 4560 California Avenue, Suite 110 Bakersfield, CA 93309 (661) 631-VE I R (8347) FAX (661) 631-8007 � J WATER SAMPLE LOG Date: October 30, 2008 Client: Sullivan Petroleum Company,LLC Well Number: MW-12 Project Name: Downtown Chevron Well Depth: 152.20' Well Casing Diameter: 2" Weather Conditions: cloudy and windy Observation/Comments: No floating layer, no petroleum hydrocarbon odor (e.g., floating layer, odor, color) Quality Assurance Water Sampling Method: TeflonTm bailer Water Level Measurement Method: Electronic water level meter Pump Lines/Bailer Ropes: Cleaned Method of Cleaning Bailer/Pump: QA/QC Method of Purging Water: Bailer pH Meter: Oakton Calibrated: Yes Specific Conductance Meter: Oakton Calibrated: Checked Comments: pH STD. Calibration STD. Field Temp. °C 4 34170-127 4 7 34170-130 7 ity(NTU's) Date Time Discharge Temp. pH Conductivity Color Odor Turbid (gallons) (°C) (pmhos/cm)field @ 10/30/08 0800 Depth to Groundwater at Start of Purging: 143.40' 10/30/08 0815 2 22.4 7.84 735 tan none 536 10/30/08 0830 4 22.3 7.38 730 tan none 541 10/30/08 0846 6 22.5 7.22 722 tan none 444 10/30/08 0850 Depth to Groundwater at End of Purging: 145.11' 10/30/08 0857 Depth to Groundwater at Sampling: 145.23' P 9� Total Discharge: 6 gallons Casing Volumes Removed: 3 Method of Disposal of Discharged Water: Stored on-site in 55-gallon drums Sample Containers Filled: Four VOA vials Water Sample Description (e.g., color, turbidity): tan color, turbidity 444 Sample Identification Numbers: MW-12 Data Collected By: Sheldon Hood Cow 4560 California Avenue, Suite 110 Bakersfield, CA 93309 (661) 631-VE I R (8347) FAX (661) 631-8007 WATER SAMPLE LOG Date: October 30, 2008 Client: Sullivan Petroleum Company,LLC Well Number: MW-13 Project Name: Downtown Chevron Well Depth: 154.20' Well Casing Diameter: 2° Weather Conditions: cloudy Observation/Comments: No floating layer, no petroleum hydrocarbon odor (e.g., floating layer, odor, color) Quality Assurance Water Sampling Method: TeflonTm bailer Water Level Measurement Method: Electronic water level meter Pump Lines/Bailer Ropes: Cleaned Method of Cleaning Bailer/Pump: QA/QC Method of Purging Water: Bailer pH Meter: Oakton Calibrated: Yes Specific Conductance Meter: Oakton Calibrated: Checked Comments: pH STD. Calibration STD. Field Temp. °C 4 34170-127 4 7 34170-130 7 Date Time Discharge Temp. pH Conductivity I Color Odor Turbidity(NTU's) (gallons) (°C) (pmhos/cm)field @ 10/30/08 0920 Depth to Groundwater at Start of Purging: 146.30' 10/30/08 0940 2 23.9 8.01 806 tan none 877 10/30/08 0958 4 24.1 7.84 788 tan none 699 10/30/08 1010 6 22.8 7.21 764 tan none 701 10/30/08 1015 Depth to Groundwater at End of Purging: 149.17' 10/30/08 1030 Depth to Groundwater at Sampling: 149.26' Total Discharge: 6 gallons Casing Volumes Removed: 3 Method of Disposal of Discharged Water: Stored on-site in 55-gallon drums. Sample Containers Filled: Four VOA vials Water Sample Description (e.g., color, turbidity): tan color, turbidity 701 Sample Identification Numbers: MW-13 Data Collected By: Sheldon Hood v�1R c�� 4560 California Avenue, Suite 110 Bakersfield, CA 93309 (661) 631-VEI R (8347) FAX (661) 631-8007 u + WATER SAMPLE LOG Date: October 30, 2008 Client: Sullivan Petroleum Company,LLC Well Number: MW-14 Project Name: Downtown Chevron Well Depth: 157.58' Well Casing Diameter: 2" Weather Conditions: cloudy and windy Observation/Comments: No floating layer, no petroleum hydrocarbon.odor (e.g., floating layer, odor, color) Quality Assurance Water Sampling Method: TeflonTm bailer Water Level Measurement Method: Electronic water level meter Pump Lines/Bailer Ropes: Cleaned Method of Cleaning Bailer/Pump: QA/CQC Method of Purging Water: Bailer pH Meter: Oakton Calibrated: Yes Specific Conductance Meter: Oakton Calibrated: Checked Comments: pH STD. Calibration STD. Field Temp. °C 4 34170-127 4 7 34170-130 7 Date Time Discharge Temp. pH Conductivity Color Odor Turbidity(NTU's) (gallons) (°Q I (pmhos/cm)field @ 10/30/08 0705 Depth to Groundwater at Start of Purging: 146.11' 10/30/08 0715 2 22.3 7.91 538 tan none 388 10/30/08 1 0733 4 22.8 8.03 564 tan none 654 10/30/08 0744 6 23.1 7.44 599 tan none 510 10/30/08 0755 Depth to Groundwater at End of Purging: 147.99' 10/30/08 0759 Depth to Groundwater at Sampling: 148.26' Total Discharge: 6 gallons Casing Volumes Removed: 3 Method of Disposal of Discharged Water: Stored on-site in 55-gallon drums Sample Containers Filled: Four VOA vials Water Sample Description (e.g., color, turbidity): tan color, turbidity 510 Sample Identification Numbers: MW-14 Data Collected By: Sheldon Hood y.�r7z Cow 4560 California Avenue, Suite 110 Bakersfield, CA 93309 (661) 631-VE I R (8347) FAX (661) 631-8007 WATER SAMPLE LOG Date: October 31, 2008 Client: Sullivan Petroleum Company,LLC Well Number: EW-1 Project Name: Downtown Chevron Well Depth: 186.40' Well Casing Diameter: 2° Weather Conditions: cloudy and windy Observation/Comments: No floating layer, no petroleum hydrocarbon odor (e.g., floating layer, odor, color) Quality Assurance Water Sampling Method: TeflonTm bailer Water Level Measurement Method: Electronic water level meter Pump Lines/Bailer Ropes: Cleaned Method of Cleaning Bailer/Pump: QA/QC Method of Purging Water: Bailer PH Meter: Oakton Calibrated: Yes Specific Conductance Meter: Oakton Calibrated: Checked Comments: pH STD. Calibration STD. Field Temp. °C 4 34170-127 4 7 34170-130 7 Date Time Discharge Temp. pH Conductivity Color Odor Turbidity(NTU's) (gallons) (°G� (Nmhos/cm)field @ 10/31/08 0950 Depth to Groundwater at Start of Purging: 127.40' 10/31/08 1000 9 22.9 7.91 477 clear none 48 10/31/08 1030 18 23.1 7.86 518 clear none 66 10/31/08 1100 27 22.2 7.23 491 clear none 109 10/31/08 1115 Depth to Groundwater at End of Purging: 127.51' 10/31/08 1128 Depth to Groundwater at Sampling: 127.58' Total Discharge: 27 gallons Casing Volumes Removed: 3 Method of Disposal of Discharged Water: Stored on-site in 55-gallon drums Sample Containers Filled: Four VOA vials Water Sample Description (e.g., color, turbidity): no color, turbidity 109 Sample Identification Numbers: EW-1 Data Collected By: Sheldon Hood v�.r7z cow 4660 California Avenue, Suite 110 Bakersfield, CA 93309 (661) 631-VE I R (8347) FAX (661) 631-8007 I � WATER SAMPLE LOG Date: October 2, 2008 Client: Sullivan Petroleum Company,LLC Well Number: MW-5 Project Name: Downtown Chevron Well Depth: 142.00 Well Casing Diameter: 2" Weather Conditions: sunny Observation/Comments: No floating layer, no petroleum hydrocarbon odor (e.g., floating layer, odor, color) Quality Assurance Water Sampling Method: Teflon TM bailer Water Level Measurement Method: Electronic water level meter Pump Lines/Bailer Ropes: Cleaned Method of Cleaning Bailer/Pump: QA/QC Method of Purging Water: Bailer pH Meter: Oakton Calibrated: Yes Specific Conductance Meter: Oakton Calibrated: Checked Comments: pH STD. Calibration STD. Field Temp. °C 4 34170-127 4 7 34170-130 7 Date Time Discharge Temp. pH Conductivity Color Odor Turbidity (NTU's) (gallons) (°Q (pmhos/cm)field @ 10/2/08 1130 Depth to Groundwater at Start of Purging: 128.40 10/2/08 1145 1.5 22.9 7.06 590 tan none 230 10/2/08 1200 3.0 23.1 7.00 610 tan none 385 10/2/08 1215 4.5 22.8 6.99 660 tan none 414 10/2/08 1220 Depth to Groundwater at End of Purging: 133.61' 10/2/08 1230 Depth to Groundwater at Sampling: 134.03' Total Discharge: 4.5 gallons Casing Volumes Removed: 3 Method of Disposal of Discharged Water: Stored on-site in 55-gallon drums Sample Containers Filled: Four VOA vials Water Sample Description (e.g., color,turbidity): tan color, turbidity 414 Sample Identification Numbers: MW-5 Data Collected By: Sheldon Hood y. _W Cow 4560 California Avenue, Suite 110 Bakersfield, CA 93309 (661) 631-VEI R (8347) FAX (661) 631-8007 ATTACHMENT 4. LABORATORY REPORTS MOORE 2527 Fresno Street aT ®N,NG Fresno, CA 93721 , (559)268-7021 Phone i d O C/A T E t. f H c. (559)268-0740 Fax California ELRP Certificate#1371 October 20, 2008 Work Order* 8J03020 Mark Magaree Vestech, LLC/dba VEIR - 4560 California Ave., Suite 110 Bakersfield, CA 93309 RE: Sullivan's Downtown Chevron Enclosed are the analytical results for samples received by our laboratory on 10/03/08 . For your reference, these analyses have been assigned laboratory work order number 8J03020. All analyses have been performed according to our laboratory's quality assurance program. All results are intended to be considered in their entirety, Moore Twining Associates, Inc. (MTA) is not responsible for use of less than complete reports. Results apply only to samples analyzed. If you have any questions, please feel free to contact us at the number listed above. Sincerely, Moore Twining Associates, Inc. Ronald J. Boquist Director of Analytical Chemistry 00R1 2527 Fresno Street M I R Fresno, 93721 EM (559)268-7021 21 Phone (559)268-0740 Fax fSOCI�rfS. JN C. California EL 4P Certificate 91371 Vestcch,LLC/dba VEIR Project: Sullivan's Downtown Chevron ~' 4560 California Ave.,Suite 110 Project Number: 15187 Reported: Bakersfield CA,93309 Project Manager. Mark Mag=e 10/20/08 ANALYTICAL REPORT FOR SAMPLES Sample ID Laboratory ID Matrix Date Sampled Date Received MW-5d 8JO3020-01 Ground Water 10/02108 11:15 10/03/08 14:20 MW-5 8J03020-02 Ground Water 10/02/08 12:30 10/03/08 14:20 4 J Moore Twining Associates,Inc. The results in this report apply to the samples analyzed in accordance with the chain Ronald J.Boquist,Director of Analytical Chemistry custody document.This analytical report must be reproduced in its entirety. Jim Brownfield,Quality Assurauce Manager Page 1 of 5 ORI 2527 Fresno Street Fresno,CA 93721 (559)268-7021 Phone (559)268-0740 Fax 71 1 02 1Arf S. lNC. California E•LAP Certificate 91371 Vestech,LLC/dha VEIR Project: Sullivan s Downtown Chevron 4560 California Ave.,Suite 110 Project Number 15187 Reported: Bakersfield CA,93309 Project Manager. Mark Magaree 10/20/08 MW-5 8J03020-02(Ground Water) Sampled:10/02/09 I230 Reporting i Analytc Result Limit Units Dilution Batch Preparcd Analyzed Method Notes. Volatile Organics Di-isopropyl ether(RIPE) ND 2.0 µg/L 1 TSJ1508 10/15/08 10115108 EPA 8260B Ethyl tert-Butyl Ether(ETBE) ND 2.0 µg/L I T911508 10/15/08 10!15108 EPA 8260B Methyl tert-Butyl Ether(MTBE) 2.6 1.0 ytg/L I T911508 10/15/08 10115/08 EPA 8260B Tert-Amyl Methyl Ether(TAME) ND 2.0 gg/L 1 T8JI508 10/15/08 10/15/08 EPA 9260B ten-Butyl alcohol(TBA) ND 20 1491L I T8J1508 10/15/08 10 115/08 EPA 8260B Surrogate:Toluene-d8 _ 105% 70-130 28.11508 10115108 10115108 EPA 8260B Surrogate:4-Bromofluorobenzene 91.8% 70-130 78J1508 10115108 10115108 EPA 8260B i Surrogate.Dibromoflrroromethane 98.1 Yaa 70-130 TV1506 10115108 10/15108 EPA 8260B Benzene ND 0.50 99/L 1 TSJ0918 10/09/08 10/10/08 EPA 80158180218 Toluene ND 0.50 µg/L. 1 T8J0918 10109106 10/10108 EPA 80158/80218 £thylbenzene ND 0.50 µg/1.. 1 T810919 10/09/08 10/10/08 EPA 8015B/8021B Xylenes,total ND 1.5 µ9/L 1 TBJ0918 10/09108 10/10/08 EPA 8015B/80213 Methyl tert-Butyl Ether(MTBE) ND 2.5 µg/L I TOJO918 10/09/08 10/10/08 EPA 8015B/8021B "1 Gasoline ND 50 lig/L 1 T810918 10/09108 I0/10108 EPA 9015BI8021B Surrogate:4-Bromojluorobenzene(PID) 96.8% 75-125 TV0918 10109108 IWJ0108 EPA8015BI802IB Surrogate:4-Bromojluoroben ene(FID) 99.6 a/o 75-115 T8J0918 10109108 IWIOI08 EPA 8015BI8021B Notes and Definitions ug/1, micrograms per liter(parts per billion concentration units) mgkg milligrams per kilogram(parts per million concentration units) mg/L milligrams per Liter(parts per million concentration units) ND Analyte NOT DETECTED at or above the reporting limit RPD Relative Percent Difference t t Moore Twining Associates,Inc. 77re results In this report apply to the samples analyzed in accordance with the chain Ronald J.Boquist,Director of Analytical Chemistry custody document.This analytical report must be reproduced in its entirety. Jim Brownfield,Quality Assurance Manager Page 3 of 5 OORE 2527 Fresno Street Fresno,CA 93721 d A ��I�� (559)268-7021 Phone (559)268-0740 Fax oc 1A T J. t Nc. California EC,,4P Certificate#1371 Vestech,LLC/dba VE1R Project: Sullivan's Downtown Chevron 4560 California Ave.,Suite 110 Project Number: 15187 Reported: Bakersfield CA,93309 Project Manager: Mark Magaree 10120/08 MW-5d 8103020-01 (Ground Water) Sampled:10102/08 11:15 Reporting Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes. Volatile Organics Di-isopropyl ether(RIPE) ND 2.0 µg1[. 1 T8J1508 10/15/08 10/15/08 EPA 8260B Ethyl tert-Butyl Ether gME) ND 2.0 µg2 1 T811508 10/15/08 10/15/08 EPA 8260B Methyl tort-Butyl Ether(MTBE) 3.0 1.0 µg/L 1 T8J1508 10/15/08 10/15/08 EPA 8260B Tert-Amyl Methyl Ether(TAME) ND 2.0 µg2 1 T8J1508 10/15/08 10/15/08 EPA 8260B tert-Butyl alcohol(TBA) ND 20 µg2 1 TV1508 10/15/08 10/15/08 EPA 8260B Surrogate:Toluene-d8 104% 70-130 TV1508 10115108 105108 EPA 8260E ► Surrogate:4-BromoJluorobenzene 94.7% 70-130 TV1508 IW15108 10/75108 EPA 8260E i Surrogate:Dibromofluoromethane 97.3% 70-130 TV1508 10115108 10115108 EPA 8260B Benzene ND 0.50 9g2 1 T8J0918 10/09/08 10/09/08 EPA 8015B/8021B Toluene ND 0.50 µ92 1 T8J0918 10109 108 10/09/08 EPA 8015BIS021B Ethylbenzene ND 0.50 µg2 1 T830918 10/09/08 10109/08 EPA 8015B/8021B Xylenes,total ND 1.5 µg2 1 T8J0918 10109108 10/09/08 EPA 8415E/8021B Methyl tert-Butyl Ether(MTBE) ND 2.5 µg/L 1 T8J0918 10/09/08 10/09/08 EPA 8015B/80218 Gasoline ND 50 µg/L 1 T8J0918 10/09/08 10/09/08 EPA 8015B/802 in Surrogate:4-Bromo)7uoroben:ene(FID) 100% 75-125 718J0918 10109108 10109108 EPA 80158/80218 Surrogate:4-BromoJluorobensene(PID) 101% 75-125 7870918 10109108 10109108 EPA801SB/8021B i S i Moore Twining Associates,Inc. Me results in this report apply to the samples anab=d in accordance with the chain Ronald J.Boquist,Director of Analytical Chemistry custody document.Zhis analytical report must be reproduced in Its entirety. Jim Brownfield,Quality Assurance Manager Page 2 of 5 00" 2527 Fresno Street Fresno,CA 93721 (559)268-7021 Phone (559)268-0740 Fax ASSOCIAr 7 7INC. California ELQ Certificate#1371 Vestech,LLC/dba VEIR Project Sullivan's Downtown Chevron r 4560 California Ave.,Suite 110 Project Number. 15187 Reported: Bakersfield CA,93309 Project Manager: Mark Magaree 10/20/08 ' Volatile Organics - Quality Control Analyte Result Reporting Units Spike Source %REC %REC RPD RPD Notes Limit Level Result Limits Limit Batch T8J0918 Blank Prepared&Analyzed:10/09/08 Surrogate:4-8romof7uorobenzene(PID) 24.1 UgIL 25.0 96.6 75-125 Surrogate:4-3romof7uorabettsene(FID) 24.9 ltg/L 25.0 99.6 75-125 Benzene ND 0.50 µg/1. Toluene ND 0.50 µ9/L Ethyibenzenc ND 0.50 µg/L Xylenes,total ND I.5 µg/l, Mcdiyl tent-Butyl Ether(MTBE) ND 2.5 µ9/L Gasoline ND so uen- + LCS(T8J4918-BSl Prepared:10/09/08 Analyzed.10/10/08 Surrogate:4-Bromofluorobenzene(FID) 23.5 tcg/L 25.0 93.9 70-130 Surrogate:4-BroingUorobensene(PID) 24.8 P91L 25.0 99.2 70-130 Benzene 20.4 0.50 µg/L 20.0 102 70-130 20 Toluene 213 0.50 µg/L 20.0 106 70-130 20 Ethylbenzene 21.4 0.50 9911, 20.0 107 70-130 20 Xylencs,total 639 1.5 µg/L 60.0 106 70-130 20 Methyl tcrt-Butyl Ether(MTBE) 114 2.5 99/1. 100 114 706130 20 Gasoline 1060 50 µ9/L 1000 106 70-130 20 LCS Dep(T8J0918-]3S )1) Prepared:10109108-Analyzed:10/10/08 Surrogate:4-Bromofluorobera ene(PID) 24.7 11191L 25.0 99.0 70-130 Surrogate:4-Bromofluorobenzene(FID) 23.6 pgIL 25.0 94.5 70-130 Benzene 19.4 0.50 µ81 20.0 97.0 70-130 490 20 Toluene 203 0.50 µ91L 20.0 102 70-130 4.69 20 Ethylbenzenc 20.4 0.50 µ91L 20.0 102 70-130 4.55 20 Xylenes,total 61.1 1.5 µ9/L 60.0 102 70-130 4.46 20 Methyl tent-Butyl Ether(MTBE) 111 2.5 µ91L 100 111 70-130 129 20 Gasoline 1030 50 µ9/L 1000 103 70-130 100 20 Batch TBJ1508 Blank 8J1508-BLKl) Prepared&Analyzed: 10/15/08 Surrogate:Dibromofluoromethane 25.4 /cg/L 25.0 102 70.130 Surrogate:Toluene-d8 26.0 ttg/L 15.0 104 70-130 Surrogate:4-Bromofluorobenzene 24.3 /eg/L 25.0 970 70-130 I)Wsopropyl ether(DIPS) ND 2.0 gg/L Ethyl tort-Butyl Ether(ETBE) ND 2.0 µg/L Methyl tert-Butyl Ether(MTBE) ND I.0 }tg/L Moore Twining Associates,Inc. The results in this report apply to the samples amalyed in accordance with the chain Ronald J.Boquist,Director of Analytical Chemistry custody document This analytical report must be reproduced in its entirety. Jim Brownfield,Quality Assurance Manager Page 4 of 5 on 2527 Fresno Street Fresno,CA 93721 (559)26 Phone M-07 (559)268-0740 Fax A f i0 CIArfS. !NC California EUP Certificate¥1371 Vestech,LLC 1 dba VEIR Project: Sullivan's Downtown Chevron 4560 California Ave.,Suite 110 Project Number: 15187 Reported: . Bakersfield CA,93309 Project Manages Mark Magaree 1020/08 ; Volatile Organics- Quality Control alyte Result Reporting Units Spike Source %REC %REC RPD RPD Notes Limit Level Result Limits Limit Batch MI MS Blank 8J1508-BLKI) _ Prepared&Analyzed:10 11510$ _ Ten-Amyl Methyl Ether(TAM ) NO 2.0 µ91L tert-Butyl alcohol CMA) ND 20 µg(L 1.1-Dichloroetheno ND 0.50 µg/L Benzene NO 0.50 µg/L Chlorobenzene NO 0.50 µ9/L Toluene NO 0.50 µ�I. Trichloroethene(TCE) NO 0.50 µg/L LCS T8J1508-$Si Prepared&Analyzed:10/15/08 Surrogate:Toluene-d8 25.5 µ91L 25.0 102 70-130 Surrogatr:4-Broma.luorobenzene 23.9 /eg/L 25.0 95.4 70.130 Surrogate:Dibromofluorometham 24.8 µg/L 25.0 99.0 70-130 1,1-Dichloroethene 18.2 0.50 99/L 20.0 9I.0 70-130 20 Benzene 17.1 0.50 µ9/L 20.0 85.5 70-130 20 Chlorobenzene 21.4 0.50 µg/L 20.0 107 70-130 20 Toluene 18.0 0.50 µ9/L 20.0 90.0 70-130 20 Trichlorocthcne(TCE) 17.9 0.50 µg/L 20.0 89.6 70-130 20 LCS Du 8JI508-BSD1) Prepared&Analyzed:10115/08 Surrogate.4-BromoJluorobe=ene 23.3 µ91L 2S.0 93.2 70-130 Surrogate:Dibromofluoromethane 238 091L 2S.0 95.1 70-130 Surrogate:Toluene-d8 26.2 µ92 210 105 70.130 IJ-Dichlorocthene 16.7 0.50 991L 20.0 83.6 70-130 8.54 20 Benzene 16.6 0.50 µg/L 20.0 818 70-130 115 20 Chlorobenzene 20.7 0.50 µg2 20.0 104 70-130 3.46 20 _..� Toluene 17.2 0.50 µg/L 20.0 861 70-130 4.32 20 Triehlorocthene(rCE) 17.7 0.50 99/L 20.0 88.6 70-130 1.23 20 r Moore Twining Associates,Iric. The results in this report apply to the samples analyzed in accordance with the chain Ronald J.Boquist,Director of Analytical Chemistry mod'document.This analytical report must be reproduced in its entirety. . Jim Brownfield,Quality Assurance Manager Page 5 of 5 j CHAIN A O C T CH� N ®FCU T®® / 4 lSIE REQUEST ® ® � 9 f N WORK ORDER #: ANALYTICALCHENa iRYDIVISION PAGE OF CALIFORNIA ELAP CERTIFICATION#1371 REPORTTO: a INVOICE TO: a REPORT COPY TO: REPORTING: ATTENTION: ATTENTION; X STANDARD FORMAT Mark Magargee Sullivan Petroleum Company,LLC NAME: NMI: ❑WRITE-ON(STATE FORM) Vestech,LLC/dba VEIR Tim Sullivan 'KGEOTRACKER/COELT(LUFT) ADDRESS: ADDRESS: ❑PDF ❑SPREADSHEET 4560 California Avenue Ste 110 1 150818'St.#222 Bakersfield, CA 93309 Bakersfield, Ca 93301 13 County aHS PHONE, PHONES ❑Environmental Health Agency: 661 631-8347 661 327-5008 FAX FAX: ❑OTHER: 661 631-8007 (661)861-0938 SAMPLE INFORMATION SAMPLE TYPES- PROJECT INFORMATION SAMPLED (PRINT), SOLMr CONTRACT/P.O.NO.: ES-BIOSOLID SULLIVANS S NAT CR—CERAMIC PROJECT NAME, SL-SOIL/SOLID Downtown Chevron Sery Station LIQUID,r PROJECT NUMRER: C SYSTEM X ROUTINE DW-DRINKING WATER 15187 C1 PRIVATE WELL 13 REPEAT GW-GROUND WATER PROJECT MANAGER OL-OIL Mark Magar g ee ❑ OTHER ❑ REPLACEMENT SF-SURFACE WATER TURNAROUNDTIME: ❑RUSH,DUE ON: ST-STORM WATER WW-WASTE WATER ANALYSIS REQUESTED ❑STANDARD NOTES ON RECEIVED CONOMON, A C3 CUSTODY SEAL(S)BROKEN ❑SAMPLE(S)DAMAGED , 1 U ❑ON ICE ❑AMBIENT TEMP. ❑INCORRECT PRESERVATION o a F CLIENT SAMPLE ID GATE TIME TYPE Gl9-v�'� o� i/j- �r•� � d � COMMENTS/ADDITIONAL INSTRUCTIONS: VOC's by 8260 RELINQUISHED BY COMPANY DATE TIME RECEIVED 13Y COMPANY � lo•�o� 1/.x.5 � Rio ORE 2527 Fresno Street Fresno, CA 93721 TWIXII VG (559)268-7021 Phone A f O C l A 7 f J. I K C. (559)268-0740 Fax California FLAP Certificate#1371 November 20, 2008 Work Order#: 8KO5038 Mark Magaree Vestech, LLC/dba VEIR 4560 Caliifomia Ave., Suite 110 Bakersfield, CA 93309 RE: Sullivan's Downtown Chevron Enclosed are the analytical results for samples received by our laboratory on 11 105/08 . For your reference, these analyses have been assigned laboratory work order number 8K05038. All analyses have been performed according to our laboratory's quality assurance program. All results are intended to be considered in their entirety, Moore Twining Associates, Inc. (MTA) is not responsible for use of less than complete reports. Results apply only to samples analyzed. If you have any questions, please feel free to contact us at the number listed above. Sincerely, Moore Twining Associates, Inc. Ronald J. Boquist Director of Analytical Chemistry ��O�� r 2527 Fresno Street Fresno,CA 9372j1 �IN, � 0(559}268-0740 Fax A Sr 0 CIA rIS, ix C. California EL4P Certificate-91371 Vestech,LLC/dba VEIR Project: Sullivan's Downtown Chevron 4560 California Ave.,Suite 110 Project Number: 15187 Reported: Bakersfield CA,93309 Project Manager. Mark Magaree 11/20 108 MW-4 8KO5039-06(Ground Water) Sampled:10/30/08 15:15 Rapordng LA,,Iytc Result Limit Units Dilution Batch Prepared Analyzed Method Notes. Volatile Organics Di-isopropyl ether(RIPE) ND 2.0 µg/L 1 T8K1106 11/11/08 11111108 EPA 8260B Ethyl tert-Butyl Ether(ETBE) ND 2.0 µg/L 1 T8K1106 I1/11/08 11/11/08 EPA 8260B Methyl tent-Butyl Ether(MTBE) 1.1 1.0 µg/L 1 TBKI 106 11/11/09 1 U11/08 EPA 8260B Tort-Amyl Methyl Ether(TAME) ND 2.0 µg11. I T8KI 106 11/1I/08 11/11/08 EPA 8260B tcrt-Butyl alcohol CMA) ND 20 µa,/L 1 TBKI 106 11/11/08 11/11/08 EPA SUM Surrogate:Toluene-d8 104% 70-130 718K1106 11171108 11111108 EPA 8260B Surrogate:Dibromofluoromethane 103% 70-130 7BK1106 11111/08 11111/08 EPA 8260B Surrogate:4-Bromofluorabemerne 95.9% 70-130 T8K1706 11/11/08 11111118 EPA 8260E Benzene ND 0.50 µ91L 1 TBK0605 11/06/08 11/06/08 EPA 80158/8021 B Toluene ND 0.50 µ91L 1 T8K0605 11/06108 11 106 108 EPA 80158/8021B Ethylbenzenc ND 0.50 ug/L 1 T8K0605 11/06/08 11/06/08 EPA 801SM0218 Xylenes,total ND 1.5 µg/L I T8K0605 11/06/08 11106/08 EPASDISW8021B Methyl tort-Butyl Ether(MTBE) ND 2.5 µg/L I T8K0605 I110&08 11/06/08 EPA8015B/8021B Gasoline ND 50 µg(L 1 T8K0605 11/06/08 11/06/08 EPA SDI 511/80218 Surrogate:4-Branofluoroben=ne(PID) 94.7% 75-125 T8K0605 11106108 IM6108 EPA 8015BI8021B Surrogate:4-Bromofluorobernene PD) 98.0% 75-125 78K060S 17106//18 11106108 EPA8015BI8021B Moore Twining Associates,Inc. The results in this report apply to the samples analysed in accordance with the chain Ronald J.Boquist,Director of Analytical Chemistry custody documem 7his analytical report must be reproduced in its entirety. Jim Brownfield,Quality Assurance Manager Page 7 of 15 O� 2527 Fresno Street Fresno,CA 93721 (S( 40 TWINIXG 55268-7021 F ax ASS OCiA 7ff. t NC. Califartila BLAP Certificate#1371 ' Vestech,LLC/dba VEIR Project Sullivan's Downtown Chevron 4560 California Ave.,Suite 110 Project Number: 15187 Reported: Bakersfield CA,93309 Project Manager. MarkMagaree 11/20/08 MW-5 8K05038-1I (Ground Water) Sampled:10/31/08 14:25 Reporting Analyte Result Limit Units Dilation Batch Prepared Analyzed Method Notes. Volatile Organics Di-isopropyl ether(DIPS) ND 2.0 µg/L I T8KI 106 11/11/08 11/11108 EPA 8260B Ethyl tert-Butyl Ether(ETBE) ND 2.0 µg/l, 1 T8KI106 11/11/08 11/11/08 EPA 82608 Methyl tert-Butyl Ether(MTBE) ND 1.0 11g2 1 T8KI106 11111/08 11/11/08 EPA 8260E Tert-Amyl Methyl Ether(TAME) ND 2.0 µg2 I T8KI 106 11/11/08 11/11/08 EPA 8260B tert-Butyl alcohol(TBA) ND 20 µg2 1 T8K1106 11/11/08 11/11/08 EPA 8260B Surrogate:4-BromoJluoroben ene 98.8% 70-130 - 78KI106 11/11/08 11111/08 EPA 8260B Surrogate:Dibromefhtoromethane 9919% 70-130 778KI106 11111108 11111108 EPA 8260B Surrogate:Toluene-d8 105°/a 70-130 T8KI106 11/11/08 11111108 EPA 82608 Benzene ND 0.50 Rg2 l T8K0605 11/06/08 11/06/08 EPA 801513/802IB Toluene ND 0.50 µg/L I TSK0605 11/06/08 11/06/08 EPA 80158/80218 Ethylbenzeno ND 0.50 p,g2 t T8K0605 11/06/08 1110610$ EPA 80 15B/802113 Xylenes,total ND 1.5 µg2 1 T8K0605 11/06/08 11106/08 EPA 8015B/80218 Methyl ter(-Butyl Ether(MTBE) ND 2.5 µg2 l T8K0605 11/06/08 11/06/08 EPA 80158/802113 Gasoline ND 50 �tg/L 1 T8K0605 11/06/08 11/06/08 EPA 80158/8021B Surrogate:4-Bromofluorobe=ene(PID) 95.5% 75-125 TBK0605 11106108 11106108 EPA801SB/8021B Surrogate:4 Bromofluorobe=ene(FJD) 98.2% 75-125 7WK0605 11106108 11106108 EPA 8015BIS021B Moore Twining Associates,Inc. The results in this report apply to the samples awl)-rd in accordance with the chain Ronald J.Boquist,Director of Analytical Chemistry custody document.This analytical report must be reproduced in its entirety, Jim Brownfield,Quality Assurance Manager Page 12 of 15 &ASMOO" 2527 Fresno Street MINING Fresno, 21 Shone (559)268-7021 Phoac(559)268-0740 Fax 9aCIAI F$. JNC. California SLAP Certificate#1371 Vestech,LLC/dba VEIR Project: Sullivan's Downtown Chevron 4560 California Ave.,Suite 110 Project Number: 15187 Reported: Bakersfield CA,93309 Project Manager. Mark Magaree 11/20/08 MW-5d SK05038-10(Ground Water) Sampled.10131/08 13:01 Reporting Analyze Result Limit Units Dilution Batch Prepared Analyzed Method rotes. Volatile Organics Di-isopropyl ether(DIPS) ND 2.0 Ag/L 1 TSK1I06 11111/08 11/11/08 EPA 82608 Ethyl tart-Butyl Ethcr(OBE) ND 2.0 Ag/L l TSK1106 11/11108 11/11/08 EPA 8260B Methyl tent-Butyl Ether(MT13E) ND 1.0 Ag/L 1 TSKI106 11/11/08 11/11/08 EPA 8260B Tcrt-Amyl Methyl Ether(TAME) ND 2.0 Ag/L 1 T8K1106 11111108 11/11/08 EPA 8260B tent-Butyl alcohol(TBA) ND 20 AVL 1 T8K1106 11/11/08 11/11/08 EPA 8260B Surrogate:Toluene-d8 107% 70-130 78KI106 11/11/08 11/11/08 EPA 8260B Surrogale:Dibromofluaromethane 102% 70-130 T8K1106 11/11/08 11/11/08 EPA 8260B Surrogate;4-8romofluoroben:ene 99.1% 70-130 T8K1106 1l/Il/08 11111/08 EPA 8260E Benzene ND 0.50 Ag/L 1 TSK0605 11/06/08 11/06/08 EPA 8015M02 1B Toluene ND 0.50 Ag/L 1 T8K0605 11/06/08 11106108 EPA 801513/8021B Ethylbcnzene ND 0.50 Ag/L I T8K0605 11/06/08 11106/08 EPA 8015B/8021B Xylenes,total ND 1.5 Ag/L 1 TSK0605 11106108 11/06/08 EPA 80153/8021B Methyl tert-Butyl Ether(MTBE) ND 2.5 141- 1 TSK0605 11106/08 11/06108 EPA 801513/8021B Gasoline ND 50 Ag/L 1 TSK0605 11/06/08 11/06/08 EPA 801018021B Surrogate:4-Bromo}tuoro6ensene(PID) 96.3% 75-125 T8060S 11106108 11106108 EPA 8015BI8021 B Surrogate.4-Bromofluerobenzene(F/D) 99.5% 75-125 T8K0605 11106108 11/06/08 EPA 8015BI8021 B Moore Twini ig Associates,Inc. The results in this report apply to the samples analyzed In accordance with the chain Ronald J.Boquist,Director of Analytical Chemistry custody document.7T:is analytical report must be reproduced In its entirely. Jim Brownfield,Quality Assurance Manager Page 11 of 15 MOO" 2527 Fresno Street TWINING Fresno, 21 Shone HO (559)268-7021 Phone (559)2684740 Fax rja c!A rr1. 7N c. CalOrnia ELRP Certificate 81371 Vest=h,LLC/dba VEIR Project: Sullivan's Downtown Chevron 4560 California Ave.,Suite 110 Project Number: 15187 Reported: Bakersfield CA,93309 Project Manager. Mark Magaree 11/20/08 MW-7 8K05038-12(Ground Water) Sampled:1031108 15:05 Reporting Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes. Volatile Organics Di-isopropyl ether(DIPE) ND 2.0 kg/L 1 T8K1106 11/11108 11/11/08 EPA 82606 Ethyl tert-Butyl Ether(ETBE) ND 2.0 M1 1 T8K1106 11/11108 11111/08 EPA 82606 Methyl tcrt-Butyl Ether(MTBE) ND I.0 µg/L l T8Kl I06 11/11/08 11111/08 EPA 8260B Tert-Amyl Methyl Ether(TAME) ND 2.0 µg/L 1 T8K1106 H/11108 11111/08 EPA 8260B tert-Butyl alcohol(TBA) ND 20 gg/L 1 T8K1106 11111/08 I1/11/08 EPA 9260B Surrogate:Dibromo}luoromethane 104% 70-130 78KII06 11111108 11111108 EPA 8260E Surrogate:Toluene-d8 107% 70-130 7"8K7106 11111.108 11111108 EPA 8260B Surrogate:4-Bromofkrorobensene 98.1016 70-130 78K1106 11111108 11111108 EPA 8260B Benzene ND 0:30 µg/L I TSK0605 11/06108 11/06/08 EPA 8015B/8021B Toluene ND 0.50 14L I TSK0605 11/06/08 11/06/08 EPA8015BIS021B Ethylbenzene ND 0.50 µg/L 1 T8K0605 11/06/08 11/06/08 EPA 8015B/8021B Xylencs,total ND 1.5 µg/L 1 T81(0605 11/06/08 11/06/08 EPA 8015B/80213 Methyl tert-Butyl Ether(MTBE) ND 2.5 µg/L 1 T8K0605 11/06/08 11106/08 EPA 8015B/8021B Gasoline ND 50 µg/L 1 T8K0605 11/06/08 11/06/08 EPA 80 1 53/8 02 1B Surrogate:4-Bromofluoroben*ene(PID) 96.3% 75-125 78K0605 11106108 11 106/08 EPA 8015BI80218 Surrogate:4-BromoJluoroben_erse(FID) 98.9% 75-125 MKO605 11106108 11106108 EPA 8015BI8021B Notes and Definitions A2 Sample does not display a fuel pattern.Sample contains single analyte peak(s)in the quantitation range. 119/1, micrograms per liter(parts per billion concentration units) mg/kg milligrams per kilogram(parts per million concentration units) mg/L milligrams per Liter(parts per million concentration units) ND Analyte NOT DETECTED at or above the reporting limit RPD Relative Percent Difference Mo re Twining Associates,Inc. Tim results In this report apply to the samples analyced in accordance with the chain Ronald J..Boquist,Director of Analytical Chemistry custody document 78is analytical report must be reproduced to Its entirely, Jim Brownfield,Quality Assurance Manager Page 13 of 15 ErNOORI 2527 Fresno Street � I�� Fresno, S(559)268-7021 21 Phone (559)268-0740 Fax JJOClA ff S, IMC. California LLAP Certificate#1371 Vest6ch,LLC/dba VEIR Project: Sullivan's Downtown Chevron 4560 California Ave.,Suite 110 Project Number: 15187 Reported: Bakersfield CA,93309 Project Manager: Mark Magaree 11/20/08 MW-8 8K05038-05(Ground Water) Sampled:10/30/08 13:38 Reporting LAWYte Result Limit Units Dilution Batch Prepared Analyzed Method Notes. Volatile Organics Di-isopropyl ether(RIPE) ND 40 µg2 20 TSK1106 11111/08 11/11/08 EPA 82606 Ethyl tert-Butyl Ether(ETBE) ND 40 992 20 TSK1106 11/11/08 11/11/08 EPA 82608 Methyl tort-Butyl Ether(MTBE) 9300 100 µg2 100 T8KI106 11/11/08 11/12/08 EPA 8260E Tert-Amyl Methyl Ether(TAME) ND 40 1191L 20 T8KI106 11111/08 11/11/08 EPA 8260B terr-Butyl alcohol(TBA) ND 400 991L 20 T8KI106 l 1/11/08 I1/1 I/08 EPA 8260B Surrogate:4-BromoAoro6enzane 97.5% 70-130 T8K1106 11/11/08 11111108 EPA 8260B Surrogate:Toluene-d8 106% 70-130 718X7106 11/11108 11/11/08 EPA 8260B Surrogate:Dibromofluoromethane 102% 70-130 nK1106 11/11/08 11111/08 EPA 8260E Benzene ND 10 µ9/L 20 T8K0605 11/06/08 11/06/08 EPASOISS 180218 Toluene ND 10 µ91L 20 T8K0605 11/06/08 11/06/08 EPA 80158/80218 Ethylbenzene ND 10 µg2 20 TSK0605 11/06/08 11/06/08 EPA 8015B/S021B Xylenes,total ND 30 µ91L 20 TSK0605 11/06/08 11/06/08 EPA 8015BIS021B Methyl tert-Butyl Ether(MTBE) 4400 50 µ9/L 20 T8K0605 11/06/08 11/06/08 EPA 8015318021B Gasoline A2 5200 1000 µ91L 20 TSK0605 11/06/08 11/06/08 EPA 8015B/8021B Surrogate:4-BeomoJluorobenzene(P1D) 96.5% 75.125 T8K060S 11106108 11106108 EPA 8015B/8021B Surrogate:4-8romo luorobensene(FID) 98,6% 75-125 78K0605 11106108 11106108 EPA 6015BI8021B Moore Twining Associates,Inc. The results in this report apply to the samples analyzed in accordance with the chain Ronald J.Boquist,Director of Analytical Chemistry custody document Thts analytical report must be reproduced in its entirety. Jim Brownfield,Quality Assurance Manager Page 6 of 15 MO 0R 2527 Fresno Street Fresno,CA 93721 WINING (559)268-7021 Phone (559)268-0740 Fax 010 CIA reb, INC. California FLAP Certificate#1371 Vestech,LLC/dba VEIR Project: Sullivan's Downtown Chevron 4560 California Ave.,Suite 110 Project Number: 15187 Reported: Bakersfield CA,93309 Project Manager: MarkMagaree 1120/08 MW-8d 8KO5038-04(Ground Water) Sampled:10/30/08 12:00 Rrporting Analyze Result Limit Units Dilution Batch Prepared Analyzed Method Notcs. Volatile Organics Di-isopropyl ether(DIPS) ND 2.0 µg/L 1 TBK1I06 11/11/08 11/11/08 EPA 8260B Ethyl tert-Butyl Ether(ETBE) ND 2.0 µg2 1 TBK1I06 I1/I1/08 11/11/08 EPA 9260B MethyI tert-Butyl Ether(MTBE) ND 1.0 µg/L 1 T8KII06 1I/11/08 1I 111/08 EPA 8260B Tert-Amyl Methyl Ether(TAME) ND 2.0 µg2 1 T8K1I06 11/11/08 11/11/08 EPA 8260E ter[-Butyl alcohol(TBA) ND 20 µg2 I T8K1106 11/11/08 11/11108 EPA 82608 Surrogate:4-BromoJluoroben zne 99.4% _ 70-130 78KII06 11/11/08 11111/08 EPA 8260B Surrogate:Dibromojluoromethans 105% 70-130 78KII06 17111108 11/11108 EPA 8260B Surrogate:Toluene-d8 106% 70-130 T8K1106 11111108 11/11108 EPA 8260E Benzene ND 0.50 µg2 1 T8K0605 11/06/08 11/06/08 EPA 80I5B/8021B Toluene ND 0.50 µg2 I TBK0605 11106/08 I1/06/08 EPA 9015B/80213 Ethylbenzene ND 0.50 µg2 1 T8K0605 11106/08 11/06/08 EPA 801513/80218 Xylenes,total ND I.5 µg2 1 T8K0605 I1106/08 11/06/08 EPA 801513/80218 Methyl tert-Butyl Ether(M-rBE) ND 2.5 11g/11 1 TSK0605 11/06/08 11/06/08 EPA 80158/80213 Gasoline ND 50 µg2 1 TSK0605 11/06/08 11/06/08 EPA80 1 5 8/8 02 1 3 Surrogate:4-Bromofluorobenzene(PID) 93.4% 75-125 T8K0605 11106108 11/06/08 EPA 8015818021B Surrogate:4-Bromofluorobetrene(F1Q) 96.4% 75-125 TSK0605 11106108 11106108 EPA 8015BI80218 Moore Twining Associates,Inc. The results in this report apply to the samples analyzed in accordance with the chain Ronald J.Boquist,Director of Analytical Chemistry custody document 7hls analytical report must be reproduced in its entirety. Jim Brownfield,Quality Assurance Manager Page 5 of IS MO ORE 2527 Fresno Street TN/IN�NG Fresno, 21 Shone � (559)268-7021 Phone (559)2684740 Fax Aff OC/Arff, INC. California ELAP Certificate#1371 Vestech,LLC/dba VEIR Project Sullivae's Downtown Chevron 4560 California Ave.,Suite 110 Project Number. 15187 Reported: Bakersfield CA,93309 Project Manager. Mark Magaree 1120/08 MW-10 SK05038-08(Ground Water) Sampled:10/31/08 0920 Reporting Analyle Result Limit Units Dilution Batch Prepared Analyzed Method Notes. Volatile Organics Di-isopropyl ether(DIPS) ND 2.0 µg/L l T8KI106 11/11/08 11/11/08 EPA 8260B Ethyl tert-Butyl Ether(ETBE) ND 2.0 Ag/L 1 T8K1106 11/11/08 11/11/08 EPA 8260B Methyl lert-Butyl Ether(MTBE) ND 1.0 µg11, 1 T8K1106 11/11/08 11/11/08 EPA 826013 Tcrt-Amyl Methyl Ether(TAME) ND 2.0 Ag/L l TSK1106 11/11/08 11/11/08 EPA 8260B tort-Butyl alcohol(TBA) ND 20 µg/L 1 T8K1106 11/11/08 11/11/08 EPA 8260B Surrogate:Dibromolluoromethane _ 98.2% 70-130 T8KI106 11/11/08 !1111108 EPA 8260B Surrogate:4-Bromofluoroberzene 95.3% 70430 7'8KI106 11/11/08 11/11/08 EPA 8260B Surrogate:Toluene-d8 106% 70-130 78KII06 11/11/08 11/11/08 EPA 8260B Benzene ND 0.50 µg/L 1 TSK0605 11/06/08 11/06/08 EPA 80156/80216 Toluene ND 0.50 gg/L 1 T8K0605 11106/08 11/06/08 EPA 801513/8021B Ethylbenzene ND 0.50 Pg/L 1 T8K0605 11/06/08 11/06/08 EPA 8015B/8021B Xylencs,total ND 1.5 µglL 1 T8K0605 I1/06108 11/06/08 EPA 80151318021B Methyl tert-Butyl Ether(ME) ND 2.5 992 1 T8K0605 11/06/08 11/06/08 EPA 80158/8021B Gasoline ND 50 µg/L 1 TBK0605 11/06/08 11/06/08 EPA 8015B/8021B Surrogate:4-BromoJluorobenaene(FID) 97.8% 75-125 78KO605 11106108 11106108 EPA8015BIS021B Surrogate:4-Bromp luoroben ene(P1D) 9S.6% 75425 TWOS 11106108 11106108 EPA 8015BI8021B 14601t Twining Associates,Inc. The re subs in this report apply to the samples analy<ed in accordance with the chain Ronald J.Boquist,Director of Analytical Chemistry custody document.This analytical report must be reproduced In its entirety. Jun Brownfield,Quality Assurance Manager Page 9 of 15 l 1 NOORF Fresno,Fresno Street Fresno,CA 93721 d TWINING (559)265-7021 Phone (559)268-0740 Fax A S o C A r r J. I C. California ELAP Certificate#1371 Vestech,LLC/dba VEIR Project. Sullivan's Downtown Chevron 4560 California Ave.,Suite 110 Project Number: 15187 Reported: Bakersfield CA,93309 Project Manager. Mark Magaree 11120108 ?A W-12 8K05038-02(Ground Water) Sampled:1050108 08:57 Reporting Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes. Volatile Organics Di-isopropyl ether(DIPE) ND 2.0 µ91L 1 TSK1106 11/11/08 11/11/08 EPA 8260B Ethyl tort-Butyl Ether(ETBE) ND 2.0 99tL 1 TSK11D6 11/11/08 I1 11I/D8 EPA 8260B Methyl tert-Butyl Ether(MTBE) ND 1.0 991L 1 T8K11D6 11/11/08 11/11/08 EPA 8260B Tert-Amyl Methyl Ether(TAME) ND 2.0 µ9/L 1 T8K1106 11/11/08 11/11/08 EPA 8260B tert-Butyl alcohol(TBA) ND 20 µg/,- 1 T8K1106 11/11/08 11/1 1/08 EPA 82603 Surrogate:DtbromOuaromethane 99.0% 70-130 r8K1106 11/11/08 11/11/08 EPA 8260B Surrogate:roluened8 107% 70-130 78KI106 11/11/08 11/11/08 EPA 8260B Surrogate:4-Bromofluoroben-ene 97.1% 70-130 T8KI106 11/11/08 111Il108 6PA8260B Benzene ND 0.50 µg/L I T8K0605 11/06/08 11/06/08 EPA80ISB/8021B Toluene ND 0.50 lig/L 1 T8K0605 11/06/08 11/06/08 EPA80156/8021B Ethylbenzenc ND 0.50 991I. 1 T8K06D5 11/06108 11/06/08 EPA 80 158/802 1 B Xylenes,total ND 1.5 9911. 1 nK0605 11/06/08 11 106108 EPA 8015818021B Methyl tert-Butyl Ether(MTBE) ND 2.5 µg2 1 TWOS 11/008 11/06/08 EPA 8015131802113 Gasoline ND 50 µg/L 1 T8KD605 11/06/08 11/D6/08 EPA 8015B/8021B Surrogate:4-Bromnjluoro6enzene(PID) 95.3% 75-125 T8K0605 11106108 11106108 EPA 8015BI8021B Surrogate:4-Bromofluorobenzene(FID) 97.41 75-125 T8K0605 11106108 11106108 EPA SOIS 8021B Moore Twining Associates,Inc. The results in this report apply to the samples analysed In accordance with the chain Ronald J.Boquist,Director of Analytical Chemistry custody document.This analytical report must be reproduced in its entirety. Jim Brownfield,Quality Assurance Manager Page 3 of 15 H)S$QMO ORE 2527 Fresno Street CIArFJ, IffC f LNG ( )268-, 21 Shone 559 268-7021 Phone(559)268-0740 Fax California F,I,AP Cadifcate 41371 Vestech,LLC/dba VEIR Project: Sullives Downtown Chevron 4560 California Ave.,Suite 110 Projcct Number: 15187 Reported: Bakersfield CA,93309 Project Manager: Mark Magaree 11/20/08 MW-13 8K05038-03(Ground Water) Sampled:10/30/08 10:30 Reporting Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes. Volatile Organics Di-isopropyl ether(RIPE) ND 2.0 n/L l TSK1106 11/11/08 11/11/08 EPA 8260B Ethyl tert-Butyl Ether(ETBE) ND 2,0 1191L I T8KI106 11/11108 11/11/08 EPA 8260B Methyl tert-Butyl Ether(MTBE) ND 1.0 µg/L l T8K1106 11/11/08 11/11/08 EPA 8260B Tert-Amyl Methyl Ether(TAME) ND 2.0 µg/L I TSK1106 11/11/08 11/11/08 EPA 8260B tert-Butyl alcohol(TBA) ND 20 119/L. I T8KI106 I1/11108 11/11/08 EPA 82608 Surrogate:4-Bromofuoraben_ene 98.4 Yo 70-130 T8KI106 11111/08 11/11/08 EPA 8260B Surrogate:Dibromofuoromethane 104% 70-130 T8KI106 11111/08 11111/08 EPA 82608 Surrogate;Toluene-d8 107% 70-130 T80 106 11111108 11111/08 EPA 8260E Benzene ND 0.50 IWL 1 TSK0605 11/06/08 I I/06108 EPA 8015BI8021B Toluene ND 0.50 Ag/L I T8K0605 11/06/08 1 1/06/08 EPA 8015B/80216 Ethylbenzene ND 0.50 gg/L 1 TSK0605 11/06/08 11106108 EPA 80158/80219 Xylenes,total ND 1.5 µ9/L t T8K0605 11/06/08 11106108 EPA 80158180218 Methyl tert-Butyl Ether(MTBE) ND 2.5 gg/L I T8K0605 11/06/08 11/06/08 EPA 80158/80218 Gasoline ND 50 Isg/L 1 TSK0605 1I 106/08 11/06/08 EPA80I58/80218 Surrogate:4-Bromofuoro6en ene(FID) 98.5% 75-125 T8K0605 11106108 11106108 EPA 8075B/8021B Surrogate:4 8romofuorobenzene(PID) 9S.3% 75-115 T80605 11106108 11106108 EPA 8015B/80218 Moore Twining Associates,Inc. The results in this report apply to the samples analysed in accordance with the chain Ronald J.Boquist,Director of Analytical Chemistry custody document This analytical report must be reproduced in its entirety. Jbn Brownfield,Quality Assurance Manager Page 4 of 15 MO OR1 2 Fresno Street Fresno,CA 93721 TWINING (559)268-7021 Phone (559)268-0740 Fax ASf OC1ATf S, INC. California ELAP Certificate 41371 Vestech,LLC/dba VEIR Project: Sullivan's Downtown Chevron 4560 California Ave.,Suite 110 Project Number: 15187 Reported: Bakersfield CA,93309 Project Manager: Mark Magaree 11120/08 MW-14 8KO5038-01 (Ground Water) Sampled.10/30/08 07:59 Reporting [Analytc Result Limit Units Dilution Batch Prepared Analyzed Method Notes. Volatile Organics Di-isopropyl ether(DIPS) ND 2.0 992 l T8K1106 11/11/08 11/11/08 EPA 8260B Ethyl tort-Butyl Ether(ETBE) ND 2.0 µg/L 1 T8K1106 11/1 1/08 11/11/08 EPA 8260B Methyl tcrt-Butyl Ether(MTBE) ND 1.0 µ91L 1 TSKI106 11/I1/08 11/11108 EPA 82608 TeJt-Amyl Methyl Ether(TA?vM) ND 2.0 µg/L 1 TSK1106 11/11/08 11/11108 EPA 8260B tert-Butyl alcohol(TBA) ND 20 µg/l, 1 TSK1106 11/11/08 11/11/08 EPA 8260B Surrogate:4-Bromafuorobenzene V 93.9% 70-130~ T8K1106 11/11/08 11111108 EPA 8260E Surrogate:Dibromofluoromethane 96.4% 70-130 T8KI106 11/11/08 11/11108 EPA 82608 Surrogate:Toluene-d8 107% 70-130 T8KI106 11/11/08 11/11/08 EPA 82608 Benzene ND 0.50 µg/L 1 T8K0605 11/06/08 11/06/08 EPA 8015B/8021B Toluene ND 0.50 991L I T&K0605 11/06/08 11/06/08 EPA 8015B/80218 Ethyl benzene ND 0.50 991L 1 T8K0605 11/06/08 11106108 EPA 80158/80218 Xylenes,total ND 1.5 981L 1 TSK0605 11/06/08 11/06/08 EPA8015BIS021B Methyl tert-Butyl Ether(MTBE) ND 2.5 µg/L 1 T8K0605 11 106108 11106108 EPA 9015B/802IB Gasoline ND 50 981L 1 T8K0605 1 l/06108 11/06/08 EPA 801513/8021B Surrogate:4-Bromofluorobenzene(P1D) 95.1% _ 75-125 7180605 11106108 11 106108 EPA 8015BI8021B Surrogate:4-Bromofluorobenzene(FID) 96.8% 75-125 TBK0605 11106108 11106 108 EPA801SB/8021B Moore Twining Associates,Inc. The results in this report apply to the samples analyzed in accordance with the chain Ronald J.Boquist,Director of Analytical Chemistry custody document.This analytical report must be reproduced in its entirety. Jun Brownfield,Quality Assurance Manager Page 2 of 15 al NO O�� 2527 Fresno Street yY/N/1 VG Fresno, 21 93721 (559)268-7021 Pbone (559)268-0740 Fax S a CIA rit, 1 x E California ELAP Cer4rttcate 91371 Vestech,LLC I dba VEIR Project: Sullivan's Downtown Chevron 4560 California Ave.,Suite 110 Project Number. 15187 Reported: Bakersfield CA,93309 Project Manager. Mark Magaree 11/20/08 QCTB 8K05038-07(Water) Sampled;1050108 06:30 Reporting Analytc Result Limit Units Dilution Batch Prepared Analyzed Method Notes. Volatile Orynics Benzene ND 0.50 Ag/L, 1 TSK0605 11/06/08 I1/06/08 EPA SOISB/8021B Toluene ND 0.50 119/1, 1 TSK0605 1 W6108 11/06/09 EPA 80I5B/8021 B Ethylbenzene ND 0.50 9$2 1 T9K0605 11/06/08 11/06/08 EPA 80158/8021B Xylcnes,total ND 1.5 991L 1 TSK0605 11106/08 1 W6108 EPA 801513/802113 Methyl tert-Butyl Ether(MME) ND 2.5 Ag/L 1 TSK0605 11/06/08 11/06/08 EPA 80158/8021 B Gasolino ND 50 gg/L 1 TSK0605 11/06/08 11/06/08 EPA 8015B/8021B Surrogate:4-8romo luoroben:ene(PID) 96.6% 75425 78K0605 11106108 11106108 EPA 8015BI8021B Surrogate:4-Bromgfluoroben ene(FID) 98.7% 75-125 78K0605 11106108 11106108 EPA 8015BIS021B MOOre TWitling Associates,Inc. The results in this report apply to the samples analy-ced in accordance with the chain Ronald J.Boquist,Director of Analytical Chemistry custody document.This analytical report must be reproduced in its entirety. Jim Brownfield,Quality Assurance Manager Page 8 of 15 � 4 MOO" 2527 Fresno Street TWINING. Fresno, 21 Shone � (559)268-7021 Phone {559)268-0740 Fax A110CIATI1. InC. California ELRP Cerhf:eale#1371 Vestech,LLC/dba VEIR Project: Sullives Downtown Chevron 4560 Califomia Ave.,Suite 110 Project Number. 15187 Reported: Bakersfield CA,93309 Project Manager. Mark Magaree 1120108 EW-1 8K05038-09(Ground Water) Sampled:10/31/08 11:28 Reporting Analyte Result Limit Units Dilution Bateh Prepared Analyzed MethDd Notes. Volatile Organics Di-isopropyl ether(DIPE) ND 2.0 Ag/L 1 T8K1106 11/11/08 11/11/08 EPA 8260B Ethyl tert-Butyl Ether(ETBE) ND 2.0 µg/L 1 TSK1106 11/11/09 11/11/08 EPA 8260B Methyl tert-Butyl Ether(MTBE) 2.1 1.0 µglL 1 TSK1106 11/11/08 II/I1108 EPA 8260B Tert-Amyl Methyl Ether(TAME) ND 2.0 µg/L I T8Kl 106 11/11/08 11/11108 EPA 8260B tert-Butyl alcohol(TBA) ND 20 µg/L I TSK1106 1111I/08 11/11/08 EPA 8260B Surrogate:Dibramofluoromethane 99,5% 70-130 MK1106 11111/08 11/11108 EPA 8260B Surrogate:4-BromoJluorobenzene 95.3% 70-130 T8KII06 11/11/08 11/11108 EPA 8260B Surrogate:Toluene-d8 107Vaa 70-130 MKII06 11/11/08 11/11108 FPA8260E Benzene ND 0.50 µg/L 1 T8K0605 11/06/08 11/06/08 EPA 8015E/80218 Toluene ND 0.50 µg/1.. I T8K0605 11/06/08 11/06/08 EPA 8015B/80218 Ethylbenzenc ND 0.50 J.&L 1 TSK0605 11/06/08 11/06/08 EPA8015B/8021B Xylencs,total ND 1.5 µg/L I TSK0605 1I 106108 11/06/08 EPA 8015B/8021 B Methyl tert-Butyl Ether(MTBE) 13 2.5 99/L I TSK0605 11/06/08 11/06/08 EPA 801513/80218 Gasoline ND 50 µg/L I TSK0605 11/06/08 11/06/08 EPA 801513/8021B Surrogate:4-Bromgjborobenzene(P1D) 95.8% 75-125 T8K0605 11106108 11106108 FPA8015BI8021B Surrogate:4-Bromgfiuoroben ene(1-7D) 99.3% 75-125 nK0605 11106108 11/06/08 EPA 8015B/8021B Moore Twinihi-Mtociates,Inc. The results in this report apply to the samples analysed in accordance with the Chain Ronald J.Boquist,Director of Analytical Chemistry custody document.This analytical report must be reproduced in its entirety. Jim Brownfield,Quality Assurance Manager Page 10 of 15 MO ORI 2527 Fresno Street TWINING ,Fresno, 21 Shone M)ASSOCIA (559)268-7021 Phone(559)268-0740 Fax rlr. INC. Cal fornia EUP Certificate#1371 Vestech,LLC/dba VEIR Project: Sullivan's Downtown Chevron 4560 California Ave.,Suite 110 Project Number: 15187 Reported: Bakersfield CA,93309 Project Manager. Mark Magarce 11/20/08 Volatile Organics- Quality Control Annlyte Result Reporting units Spike Source %REC %REC RPD RFD Notes Limit Level Result Limits Limit Batch TSK1106 Blank(r8K11O6-BLK1) Prepared&Analyzed:11/11/08 Tert-Amyl Methyl Ether(TAME) ND 2.0 µg/L tent-Butyl alcohol MA) ND 20 µg2 l,l-Dichlorocthete ND 0.50 µS/L Benzene ND 0.50 )42 Chlorobenzene ND 0.50 nil, Toluene ND 0.50 K9/L Trichloroethene(TCE) ND 0.50 µg2 LCS(T8K1106-BSI) Prepared&Analyzed:11/11/08 Surrogate:Toluene-d8 26.1 kg/L 15.0 104 70-130 Surrogate:4-Bromg/luoroben_ene 24.6 pg/L 25.0 98.3 70-130 Surrogate:Dibromofluoromethane 26.6 1tg/L 15.0 106 70-130 1,1-Dichloroclhene 19.4 0.50 µg/L 20.0 96.8 70-130 20 Benzene 15.8 0.50 µS/L 20.0 78.8 70-130 20 Chlorobenzene 20.8 0.50 µSIC 20.0 104 70-130 20 Toluene 16.6 0.50 W /L 20.0 82.8 70-130 20 Trichloroetlienc(TCE) 16.7 0.50 µg/L 20.0 83.7 70-130 20 LCS 17up(T8KI106-BSDI) Prepared&Analyzed:11/11108 Surrogate:4.8romgJtuorobenzem 244 Kg/L 25.0 97.6 70-130 Surrogate:Dibromofluoromethane 25.9 UgIL 25.0 103 70-130 Surrogate:Toluene-d8 16.S Itg/L 25.0 106 70-130 1,1-Dichloroethene 17.6 0.50 µg2 20.0 87.8 70-130 9.64 20 Benzene 16.0 0.50 µ81L 20.0 79.8 70-130 126 20 Chlorobenzcne 21.3 0.50 µg2 20.0 106 70-130 238 20 Toluene 16.8 0.50 µg/L 20.0 83.8 70-130 1.32 20 Trichlorocthene CME) 17.1 0.50 µg2 20.0 85.6 70-130 2.30 20 Moore Tivinin-Associates,Inc. The results in this report apply to the samples analysed in accordance with the chain Ronald J.Bogttist,Director of Analytical Chemistry mod'document.This analytical report must be reproduced in its entlrely. Jim Brownfield,Quality Assurance Manager Page 15 of 15 MOORI") CHAIN OF CUSTODY/-ANALYSIS REQUESY ® ® . IRO-,tE(559)268-7021•FAX:(559)268-0740 s s o c i r e s, r c. Y 0p.K 0RDE - 't ANAIYTICALCHEMISTRYOIVIStON PAGE, OF � ��j ✓ CALIFORNIA FLAP CERT1FrATION]r 1371 ATTENTION: REPORT TO: ATTENTION: o INVOICE TO: o REPORT COPY TO: REPORTING- Mark Mark Ma Sullivan Petroleum Com any,LLC X STANDARD FORMAT NA ME: NAMES ❑WRITE-ON(STATE FORM) Vestech,LLC/dba VEIR Tim Sullivan XGEOTRACKER/COELT(LUFI) ADDRESS, ADDRESS; ❑ PDF ❑SPREADSHEET 4560 California Avenue, Ste 110 150818'St.##222 ❑ County OHS Bakersfield,CA 93309 Bakersfield,Ca 93301 PHONE, PHONE: ❑ Environmental Health Agency: 661 631-8347 661 327-5008 M' FAX, G OTHER: 661 631-8007 661)861-0938 SAMPLE INFORMATION SAMPLE TYPES: PROJECT INFORMATION SAMPLED a {PR1NT. soup: CONTRACT/P.a.NO., e &,p O BS-BIOSOLID SULLIVANS SIG CR-CERAMIC PROJECT NAME- SL- IQ Solt/sOL1O L1Q111Di DowrAown Chevron Sery Station ❑ UBLIC SYSTEM X ROUTINE OW-DRINKING WATER PRCUMNUMBERA. ❑ PRIVATE WELL CI REPEAT GW-GROUNDWATER PROJECT MANAGER 15187 OE-OIL ❑ OTHER ❑ REPLACEMENT SF-SURFACE WATER Mark Magargee TURN AROUND TIME: ❑RUSH,DUE ON: ST-STORM WATER Cl STANDARD WW-WASTE WATER ANALYSIS REQUESTED NOTES ON RECEIVED CONDITION: L _ A ❑CUSTODY SEAL(S)BROKEN ❑SAMPLE($)DAMAGED N s U ❑ON ICE ❑AMBIENT TEMP, 13 INCORRECT PRESERVATION �o �3 G a 1 E ('-}. G CLIENT SAMPLE 1D DATE TIME TYPE t 7 S9 mzv-8� .��a rJ �' >✓ 63a Comm ENTS/ADDITIONAL INSTRUCTIONS: FFT I I VOC's b 8260 COMPANY DATE TIME RECEIVED EiY COMPANY z! ,3� c4p CHAIN OF CUSTODYI-INA►LYSIS REQUEST ® ® a{w�2//5Q/277y FRESNO STPXET•FRRESNO,CA 937: )HONE(559)268-7021•FAX:(559)268-0740 ANALYTICAL CHEMISTRY DIVISION PAGE OF �D CALIFORNIA FLAP CERTIFICATION O 1371 REPORT TO: a INVOICE TO: a REPORT COPY TO: REPORTING: ATTENTIONt ATTENTION: Mark Maaaraee Sullivan Petroleum Company,LLC X STANDARD FORMAT NAME NAME: ❑WRITE-ON(STATE FORM) VesteCh,LLC/dba VETR Tim Sullivan XGEOTRACKER/COELT(LUM ADORESSt ADDRESS: ❑ PbF ❑SPREADSHEET 4560 California Avenue Ste 110 150818'St.7222 ❑ County DHS Bakersfield, CA 93309 Bakersfield,Ca 93301 PHONE: PHONE. ❑ Environmental Health Agency: 661 631-8347 661)327-5008 FAA1 FAM ❑OTHER: 661 631-8007 (661)861-0938 SAMPLE INFORMATION SAMPLE TYPES: PROJECT INFORMATION SAMPLE RIN7)1 SOIIDJ CONTRACT/P.O.NO.t RS-BIOSOLID SULLFVANS CR-CERAMIC PROJECT NAME. SL-soli/SOLID Downtown Chevron Sery Station r urD PROJECT NUMBER: C SYSTEM X ROUTINE OW-DRINKING WATER 1SiB7 ❑PRIVATE WELL ❑ REPEAT 'i'W^GROUND WATER PROJECT MANAGER: ❑ OTHER OL-OIL Mark Maaar ee O REPLACEMENT SF-SURFACE WATER o TURN AROUND TIME: ❑ RUSH,DUE ON: "STORM WATER ❑STANDARD WW-WASTE WATER ANALYSIS REQUESTED NOTES ON RECEIVED CONDITION: L L; A ❑CUSTODYSEAL(S)BROKEN ❑SAMPLE(S)DAMAGED B � U A ON ICE ❑AMBiENT TEMP. ❑INCORRECT PRESERVATION o E CLIENT SAMPLE ID DATE TIME TYPE ti /d o�i o v9 d w COMMENTS/A001T1ONAL INSTRUCTIONS: VOC's b 8260 COMPANY DATE TIME RECEIVED BY 33 COMPANY d am. p-sr-oz. )I. 03 ��C) P MO ORE 2527 Fresno Street � �®���� Fresno, CA 93721 C I A r F:. .N (559)268-7021 Phone (559)265-0790 Fax California FLAP Certificate 41371 January 16, 2009 Work Order#: 8L31029 Mark Magaree Vestech, LLC 1 dba VEIR 4560 California Ave., Suite 110 Bakersfield, CA 93309 RE: Sullivan's Downtown Chevron Enclosed are the analytical results for samples received by our laboratory on 12/31/08 . For your reference, these analyses have been assigned laboratory work order number 81-31029. All analyses have been performed according to our laboratory's quality assurance program. All results are intended to be considered in their entirety, Moore Twining Associates, Inc. (MTA) is not responsible for use of less than complete reports. Results apply only to samples analyzed. If you have any questions, please feel free to contact us at the number listed above. Sincerely, Moore Twining Associates, Inc. Ronald J. Boquist Director of Analytical Chemistry HADMo 0AE Fresno,Fresno Street TWINING Fresno, 21 93721 (559)268-7021 Phone (559)268-0740 Fax cry rps, r k c. California ELAP Certificate 91371 Vestech,LLC/dba VEIR Project: Sullivan's Downtown Chevron 4560 California Ave.,Suite 110 Project Number: 15187 Reported: Bakersfield CA,93309 Project Manager; Mark Magaree 01/16/09 ANALYTICAL REPORT FOR SAMPLES Sample ID Laboratory ID Matrix Date Sampled Date Received MW-9 8L31029-01 Ground Water 12/30/08 17:05 12131/08 16:11 Moore Twining Associates,Inc. The results in this report apply to the samples analyzed in accordance with the chain Ronald J.Boquist,Director of Analytical Chemistry custody document.This analytical report must be reproduced in its entirety. Jim Brownfield,Quality Assurance Manager Page 1 of 4 t W ORI 2527 Fresno Street Fresno,CA 93721 59)268-7021 Phone TWIN�ING (5(559)268-0740 Fax HISOCIA TES. INC. California ELAP Certtfrcate#1371 Vestech,LLC/dba VEIR Project: Sullivan's Downtown Chevron 4560 California Ave.,Suite I10 Project Number: 15187 Reported: Bakersfield CA,93309 Project Manager: Mark Magaree 01/16/09 MW-9 8L31029-01 (Ground Water) Sampled:12/30/08 17:05 Reporting Analyte Result Limit Units Dilution Batch Prepared Analyzed Method Notes. Volatile Organics _ Di-isopropyl ether(D1PE) ND 2.0 µglL 1 T9A0602 01/06/09 01/07/09 EPA 82603 Ethyl tort-Butyl Ether(ETBE) ND 2.0 µg/L 1 T9A0602 01/06/09 01/07/09 EPA 82603 Methyl tert-Butyl Ether(MTBfi) ND 1.0 lig/L 1 T9A0602 01/06/09 01/07/09 EPA 82603 Tert-Amyl Methyl Ether(TAME) ND 2.0 µg/L 1 T9A0602 01/06/09 01/07/09 EPA 8260B tort-Butyl alcohol(TBA) ND 20 µg/L I T9A0602 01106/09_ 01/07/09 EPA 8260B Surrogate:Dibromofluoromethane 94.2% 70-130 T9A0602 01106109- 01107109 EPA 8260E Surrogate:4-Bromo luoroben:ene 91.3% 70-130 79A0602 01106109 01107109 EPA 82608 Surrogate:7'oluene,d8 102% 70-130 T9A0602 01106109 01107109 EPA 8260B Benzene ND 0.50 9A 1 T9A0812 01/08/09 01108109 EPA 8015B/8021B Toluene ND 0.50 991L 1 T9A0812 01/08/09 01/08/09 EPA 8015BA021B E-thylbenzene ND 0.50 µg/L 1 T9A0812 01/08/09 01/08/09 EPA 8015BI802I3 Xylenes,total ND 1.5 µg/L 1 T9A0812 01/08/09 01/08/09 EPA 8015B/8021B Methyl tert-Butyl Ether(MTBE) ND 2.5 µg/L 1 T9A0812 01/08/09 01/08/09 EPA 80ISB/8021B Gasoline vy - ND 50 µg/L 1 T9A0812 01/08/09 01108109 EPA8015B/8021B Surrogate:4-Bromofluoroben:ene(FID) 77.4% 75-125 T9A0812 01108109 01108109 EPA 8015818021B Surrogate:4-Bromofluoroben_ene(FID) 77.5% 75-125 79AO812 01108109 01108109 EPA 80158180218 Notes and Definitions ug/i, micrograms per liter(parts per billion concentration units) mg/kg milligrams per kilogram(parts per million'concentratioa units) mg/L milligrams per Liter(parts per million concentration units) NO Analyte NOT DETECTED at or above the reporting limit ItPD Relative Percent Difference Moore Twining Associates,Inc. The resula in this report apply to the samples analysed in accordance with the chain Ronald J.Boquist,Director of Analytical Chemistry custody document.This analytical report must be reproduced in its entirety. Jini Brownfield,Quality Assurance Manager Page 2 of 4 IffIff� 2527 Fresno Street al$N�tlIVIIVG ( )268-, 21 93721 559 268-7021 PEtonc (559)268-0740 Fax 0 CIA7EJ, INC. California EUP Cert fcate#1371 Vestech,LLC/dba VBIR Project: Sullivan's Downtown Chevron 4560 California Ave.,Suite 110 Project Number: 15187 Reported: Bakersfield CA,93309 Project Manager. Mark Magaree O1/I6/09 Volatile Organics - Quality Control Analyte Result Reporting Units Spike Source %REC RREC RPD RPD ]Notes Limit Level Result Limits Limit Batch F9A0602 Blank(T9AO602-BLKl) Prepared&Analyzed:01/06/09 Surrogate:Toluene-d8 24.8 1191L 25.0 99.3 70-130 Surrogate:4-Bromofluoroben=ene 23.4 pg/L 2S.0 93.6 70-130 Surrogate:Dibromofluoromethane 23.4 teg/L 25.0 93.8 70-130 Di-isopropyl other(DIPS) ND 2.0 µg/L Ethyl tert-Butyl Ether(ETBE) ND 2.0 µg1L Methyl tent-Butyl Ether(MTBE) ND 1.0 µ91L Tert-Amyl Mcthyl Ethcr(FAME) ND 2.0 µg/L Icrt-Bury]alcohol(TBA) ND 20 1191L %I-Dichloroethene ND 0.50 µg/L Benzene ND 0.50 µg/L Chlorobenzene ND 0.50 µg/L Toluene ND 0.50 991 Trichloroethenc(TCE) ND 0.50 µg/L LCS(T9A0602-BSS_ Prepared&Analyzed:01/06/09 Surrogate:4-Bromgfluorobe=ene 23.3 leg/L 25.0 93.3 70-130 Surrogate:Dibromofluoromethane 23.4 leg/L 25.0 93.4 70-130 Surrogate,7'o/uene-d8 24.6 UgIL 25.0 98.5 70-130 I,I-Dichloroethene 19.5 0.50 µg/l- 20.0 97.5 70-130 20 Benzene 20.4 0.50 µg/L 20.0 102 70-130 20 Chlorobenzene 20.6 0.50 µglL 20.0 103 70-130 20 Toluene 21.0 0.50 µQ11. 20.0 105. 70-130 20 Trichloroethene(TCE) 19.4 0.50 µg1L 20.0 97.2 70-130 20 LCS Dup(T9AO602-BSD1) Premed&Analyzed:01/06/09 _ Surrogate:4-Bromofluoroben:ene 23.3 Kg/L- 25.0 93.3 70-130 Surrogate:Toluene-d8 24.9 pg/L 2S.0 99.7 70-130 Surrogate:Dibromofluoromethane 23.6 teg/L 25.0 94.4 70-130 1,1-Dichloroethene 18.6 0.50 µg/L 20.0 93.2 70-130 4.46 20 Bernzenc 19.6 0.50 µgtL 20.0 97.8 70-130 4,45 20 Chlorobenzene 20.2 0.50 µg11. 20.0 101 70-130 1.81 20 Toluene 20.0 0.50 µOIL 20.0 99.8 70-130 5.12 20 Trichloroethene(TCE) 18,7 0.50 µg/1, 20.0 93.3 70-130 4.15 20 Batch T9A0812 LCS(190812-BSI) _ Prepared&Analyzed:01/08/09 Surrogate:4-Bromofluoroben:ene(FID) 24.7 Xg/L 25.0 98.8 70-130 Moore Twining Associates,Inc. The results in this report apply to the samples anat}zed in accordance with the chain Ronald J.Boquist,Director of Analytical Chemistry custody document.This analytical report must be reproduced to Its entirety. Jim Brownfield,Quality Assurance Manager Page 3 of 4 MOO" 2527 Fresno,Fresno Street HI������ ( )268-, 21 Shone 559 268-7021 Phone(559)268-0740 Fax d o C ee Y S. INc. California FLAP Certificate 41371 Vestech,LLC/dba VE1R Project: Sullivan's Downtown Chevron 4560 California Ave.,Suite 110 Project Number. 15187 Reported: Bakersfield CA,93309 Project Manager. Mark Magaree 01/16/09 Volatile Organics - Quality Control Pula yte Result Reporting Units Spike Source %RFC %REC RPD RPD Notes Limit Level Result Limits Limit Batch T9AO892 LCS{T9A0812-BSl) Prepared&Analyzed:01/08/09 Surrogate:4-8romoJluorobenrene(AID) 21.4 1491L 25.0 85.6 70-130 - Benzene 20.4 0.50 Ag/L 20.0 102 70-130 20 Toluene 2IA 0.50 gg/L 20.0 107 70-130 20 Ethylbenzene 20.6 0.50 µlVL 20.0 103 70-130 20 Xylenes,total 66.1 1.5 pg/L 60.0 110 70-130 20 Methyl test-Butyl Ether(MTBE) 110 2.5 µg/l- 100 110 70-130 20 Gaoline 1040 5o n/L 1000 104 70-130 20 LCS Du T9A0812-BSDI) Prepared&Analyzed:01/08/09 Surrogate:4-BromgfIuorobensene(F1D) 24.4 legIL 25.0 97.7 -70-130 Surrogate:4-Bromofluorobensene(PID) 23.4 ,uglL 25.o 93.7 70-130 Benzene 19.6 0.50 Ag/L 20.0 98.2 70-130 3.89 20 Toluene 20.9 0.50 ug/L 20.0 104 70-130 2.43 20 Ethylbenzene 20.7 0.50 Ag/L 20.0 103 70-130 0.366 20 Xylenes,total 64.6 1.5 Ag/L 60.0 108 70-130 2.36 20 Metliyl tort-Butyl Ether(MTBE) 105 2.5 Ag/L 100 105 70-130 4.78 20 Gasoline 995 50 pg/L 1000 99.5 70-130 4.12 20 Moore Twining associates,Inc. The results in this report apply to the samples analyzed in accordance with the chain Ronald I Boquist,Director of Analytical Chemistry custody document This analytical report must be reproduced in its entirety. Jim Brownfield,Quality Assurance Manager Page 4 of 4 : 1 a OORI CHAIN OF CUSTODY/ANALYSIS REQUEST • ® `x,{29■5p2wIp IFy�RESNO S®f pRwE'E�iT•FRESr0,CA 937«1•P160Nj E(559)26&7021•FA.X:(559)268-07+10 A ,150 C ! A f E S. I N C. �D V i\K ®YRil ilrR • ANALYTICAL CHEMISTRY DIVISION pptarE pF �1 j o'z CALIFORNIA ELAP CERTIFICATION lr 1371 REPORT TO: o INVOICE TO: a REPORT COPY TO: REPORTING: ATTRNTION: ATTENTION: X STANDARD FORMAT Mark Ma ar ee Sullivan Petroleum Company,LLC ❑WRITE-ON(STATE FORM) NAME: NAME: VEIR Co Tim Sullivan XGEOTRACKER/COELT(LUFT) ADDRESS, ADDRESS: ❑PDF ❑ SPREADSHEET 4560 Califomia Avenue, Ste 110 150818"St.#222 0 County DHS: Bakersfield,CA 93309 Bakersfield,Ca 93301 PHONFa PHONEC ❑ Environmental Health Agency: 661 631-8347 661)327-5008 FAA: FAX: ❑OTHER: 661 631-8007 (661)861-0938 SAMPLE INFORMATION SAMPLE TYPES: PROJECT INFORMATION SAMPLED BY(PRINTj: SOLID, CONTRACT/P.O.NO.: /o/s,� EIS-BIOSOLID SULLIVANS SIG CR-CERAMIC PBOSECT NAME: SL-SOIL/SOLID Downtown Che�Ton Sery Station LI UID, PROJECT NUMBER UBL[C SYSTEM X ROUTINE DW-DRINKING WATER 15187 ❑PRNATE WELL 0 REPEAT GW-GROUND WATER PROJECT MANAGER: 13 U OTHER ❑ REPLACEMENT SF- [RFACE WATER Mark Magargee TURN AROUND TIME ❑RUSH,DUE ON: ST-STORM WATER WW-WASTE WATER ANALYSIS REQUESTED ❑ STANDARD NOTES ON RECEIVED CONDITION: A ❑CUSTODYSEAL(S)BROKEN d SAMPLES)DAMAGED E�c ❑ON ICE ❑AMEIIENTTEMP. ❑INCORRECT PRESERVATION o d E _ 72 CLIENT SAMPLE ID DATE TIME TYPE -- 9 .iiE COMMENTS/ADDITIONAL INSTRUCTIONS: VOC's by 8260 RELINQUISHED BY COMPANY DATE TIME RECEIVV90 BY COMPANY t ATTACHMENT 5. 2008 QUARTERLY GROUNDWATER ELEVATION CONTOUR MAPS 24th STREET ti9 W-2 289.94- 891 EW-1 ' VW 1d MW-1 288.40 LT89:77J 289.33& e RNs 23rd STREEy mw-7 mw-6s 287. A�MW-5d &I 287.35 NS NS 282.11 MW-10 288.20 1- H LU W H U c Z mw-9 22nd STREET NSA 8d&278.04 ry�h M&M 278.32 12 B 274.87 f— W W U) J GROUNDWATER LEVELS MEASURED FEBRUARY 15,AND 18, 2007 21St STREET 269.28 a 270.88 LEGEND SULLIVAN PETROLEUM COMPANY, LLC GROUNDWATER MONITORING WELL NS NOT SAMPLED DOWNTOWN CHEVRON SERVICE STATION ® GROUNDWATER EXTRACTION WELL 2317"L"STREET GROUNDWATER ELVATION CONTOUR BAKERSFIELD, CALIFORNIA (FEETABOVE MSQ FIGURE 3-GROUNDWATER ELEVATION GROUNDWATER FLOW CONTOUR MAP ###.# GROUNDWATER ELEVATION N�k DIRECTION VEIR REVISION DATE:APRIL 2008 I 24th STREET 1 ,�g6 W-2 ZMM � �r�,a��� 7.04 E�,_1 LWV 1d0MW-1 2��8/4.81 DRY Jo MW� 287032 NM M �23rd STREEJ/ MW�B 285.35 &SMw-sd eI 284.42 W- NM 1�0 �7e.90 MW-10 186.05 I- I— W I j � � U) - - --\1 Z MW-9 116 22nd STREET NM MW-8d&276.42/ MW-8&276.70 MW-12 27297 H W W Of H U) f _I ti10 GROUNDWATER LEVELS MEASURED APRIL 14,AND 15, 2008 21st STREET 268.14 269.69 LEGEND SULLIVAN PETROLEUM COMPANY, LLC GROUNDWATER MONITORING WELL NM NOT MEASURED DOWNTOWN CHEVRON SERVICE STATION GROUNDWATER EXTRACTION WELL 2317"L"STREET GROUNDWATER ELVATION CONTOUR BAKERSFIELD, CALIFORNIA (FEETABOVE MSQ FIGURE 3-GROUNDWATER ELEVATION GROUNDWATER FLOW CONTOUR MAP ###.# GROUNDWATER ELEVATION DIRECTION VEIR REVISION DATE:JULY 22,2008 24th STREET _CANOPY• UV 0 sTORe� HIGHWAY 178 tioo DRY JCA DRY 1 VIN�IbI-1 dMVN-1 278.91 -1 Y E� NW-a MWOW3 279.40 23rd STRtt IRY s-mw-10 i�'1 V�7 MW-6 278. �99MW-5d �I DRY M*5� NM ,y�h z7a.00 NM MW-10 283.19 MW-9 ry�o NM9 P1GigOM Us 269.40 22nd STREET ra41AA "270.44 MW12 S MW12 266.27 I H F- ~ W F- U) U h p Y J ti6 Z O M\,g4y613d 21st STREET G MW-14 261.46 GROL NDWATER LEVELS MEASU RED AUGUST 11,AND 12;2008 23rd STREET MV1F16d LEGEND SULLIVAN PETROLEUM COMPANY, LLC ® GROUNDWATER MONITORING WELL NM NOT MEASURED DOWNTOWN CHEVRON SERVICE STATION ® GROUNDWATER EXTRACTION WELL 2317"L"STREET GROUNDWATER ELVATION CONTOUR BAKERSFIELD, CALIFORNIA (FEET ABOVE MSL) FIGURE 3-GROUNDWATER ELEVATION GROUNDWATER FLOW CONTOUR MAP ###.# GROUNDWATER ELEVATION \*k DIRECTION VEIR REVISION DATE:SEPTEMBER 24,2008 24th STREET / HIGHWAY 178 MW-2 DRY D 'DRY W-1 VW -1 275 d� j'� YM MW4 MW-3 23rd STREE RY® 6.41 MW-6 ® MW-5d —M®� MW-5 273.43 266.71 DRY 274.21 M -10 .77 Mw-9 268.85 MW-8dED 266.2 22nd STREET Mv�a�266.48 W112 263.68 I F- /F- ry60 Of Y c Z O MW-13 21st STREET ®259.32 ED 2 8.69 GRO UNDWATER LEVELS MEASI IRED OCTOBER 30,AND 31, 200 23rd STREET LEGEND SULLIVAN PETROLEUM COMPANY, LLC GROUNDWATER MONITORING WELL DOWNTOWN CHEVRON SERVICE STATION 2317"L"STREET / #A/GROUNDWATER ELVATION CONTOUR BAKERSFIELD, CALIFORNIA (FEET ABOVE MSL) FIGURE 3-GROUNDWATER ELEVATION W.# GROUNDWATER ELEVATION � GROUNDWATER FLOW CONTOUR MAP DIRECTION TEIR Corp REVISION DATE:FEBRUARY 2,2009 n j . ATTACHMENT 6. 2008 QUARTERLY TPH AS GASOLINE/BENZENE/MTBE CONCENTRATIONS IN GROUNDWATER t 24th STREET a 1,000 10 87IND157 M I MW-2 W-1 ND/ND/ND& EW-1 «. �+ NDINDV34 MW-4 NS 33,000/58MD 0' MW-33 MW-11 ND/ND/N e D/ND/ND 23rd STREEJ/ MW�B ' M S5* �7 ND/ND/ND ND/ND/ND mw-5 MW-10 NS 8,4001181190 W W W W U) H fA Y Z MW-9 MW-8d 22nd STREET Ns �ND/NDhVD* MW-8 B 4,000/ND128,0 SMW--12 ND/ND/ND W W co J GROUNDWATER SAMPLED FEBRUARY 15,AND 18, 2007 21st STREET SMW-13 ND/ND/ND &MW--14 ND/ND/ND LEGEND SULLIVAN PETROLEUM COMPANY, LLC GROUNDWATER MONITORING WELL * NOT USED FOR CONTOURING DOWNTOWN CHEVRON SERVICE STATION SCREENED WITHIN AQUIFER GROUNDWATER EXTRACTION WELL 2317"L"STREET TPHAS GASOLINE/BENZENE/MTBE BAKERSFIELD, CALIFORNIA #/#/# CONCENTRATIONS IN GROUNDWATER(Ng/I) FIGURE 4-TPH AS GASOLINE/BENZENE/MTBE # / MTBE CONCENTRATON CONTOUR(Vg/I) CONCENTRATION IN GROUNDWATER ND NOT DETECTED VEIR REVISION DATE:APRIL 2008 24th STREET ND/ND/ND MW-1 I MW-2 NS & EW-1 ND/ND/52 W 1 MW-4 W-4 NS MW-3 MW-11 D/ND/ND 23rd STREEJ/ ND/ND/N M -0 vv- mw-7 MW-6S MW-5d ND/ND/ND M S* NDMDMD MW-10 N 5,000/s.aNO 7 o W W IW 'o° W W LU 7° w F c/) U) Y Z mw-9 22nd STREET NS W-8d&ND/ND/ND* 28,000/ND/30,0 S MVV-12 ND/ND/ND LU LU Of U) J GROUNDWATER SAMPLED APRIL 14,AND 15, 2008 21st STREET BMW-13 ND/ND/ND A MW14 ND/ND/ND LEGEND SULLIVAN PETROLEUM COMPANY, LLC GROUNDWATER MONITORING WELL * NOT USED FOR CONTOURING DOWNTOWN CHEVRON SERVICE STATION SCREENED WITHIN AQUIFER GROUNDWATER EXTRACTION WELL 2317"L"STREET TPHAS GASOLINE/BENZENE/MTBE BAKERSFIELD, CALIFORNIA # CONCENTRATIONS IN GROUNDWATER (N9/I) FIGURE 4-TPHAS GASOLINE/BENZENE/MTBE # I., MTBE CONCENTRATON CONTOUR(µg/1) CONCENTRATION IN GROUNDWATER ND NOT DETECTED VEIR REVISION DATE:JULY 22,2008 R I 24th STREET CANOPY�e UV 0 HIGHWAY 178 1„STORE� mw-1 MW-2 N-2 DRY DRYS NDIND112 A\,NWp1d 1 W-1 MW4D/NDMD DRY 'W-3 R� MW-11 " MW-3 S DMDMD 23rd STREET Dar MvMWS1 MW-5d �� DRY NS* ND/ND D MW-1 M -5 ND/ND/1 7 �p O 00 'OHO O mw-9 1 NS S 8d 22nd STREET ND/ND/ND 8,400MD/18,000 SMW-12 NDMD/ND LLJ H W W W LLJ w� x w Of U) F- U) co Y � � Z O MW-13d 21st STREET eNDINDIND MW-14 ND/ND/ND GROUNDWATER SAMPLED AUGUST 11,AND 12, 2008 23rd STREET MW-16d LEGEND SULLIVAN PETROLEUM COMPANY, LLC ® GROUNDWATER MONITORING WELL * NOT USED FOR CONTOURING DOWNTOWN CHEVRON SERVICE STATION ® GROUNDWATER EXTRACTION WELL SCREENED WITHIN AQUIFER 2317"L"STREET TPH AS GASOLINE/BENZENE/MTBE BAKERSFIELD,CALIFORNIA # CONCENTRATIONS IN GROUNDWATER(Ng/1) FIGURE 4-TPH AS GASOLINE/BENZENE/MTBE # MTBE CONCENTRATON CONTOUR(Ng/1) CONCENTRATION IN GROUNDWATER ND NOT DETECTED VEIR REVISION DATE:SEPTEMBER 24,2008 Ilk 24th STREET M. HIGHWAY 178 MW-1 M W-2�® DRY DRIV+ ND/ND12.1 ; VW-td W-1 ND/ND/ND � MW-4 viDRYk® ' MW-11 MW-3 RY 23rd STREET DRY MW-6 w-sd ®il DRY NDNDND ND/ND/ND MW-1 M "5 NDND/N -O O �0000 00 Mw-9 ND/NDND ED 8d 22nd STREET W-8 \NDND 5,200/ND/9, 00 OMW--12 ND/ND/ND H ~ W W W W Fj Z O 21 st STREET ®ND/ND/ND ®MW--14 NDNDND GROUNDWATER SAMPLED OCTOBER 30,AND 31, 2008 23rd STREET LEGEND SULLIVAN PETROLEUM COMPANY, LLC GROUNDWATER MONITORING WELL * NOT USED FOR CONTOURING SCREENED WITHIN AQUIFER DOWNTOWN CHEVRON SERVICE STATION 2317"L"STREET TPH AS GASOLINE/BENZENE/MTBE BAKERSFIELD, CALIFORNIA #/#/# CONCENTRATIONS IN GROUNDWATER(Ng/1) FIGURE 4-TPH AS GASOLINE/BENZENE/MTBE # / MTBE CONCENTRATON CONTOUR(Ng/1) CONCENTRATION IN GROUNDWATER ND NOT DETECTED 1VEIR Corp REVISION DATE:FEBRUARY 2,2009 October 17, 2008 Mr.Tim Sullivan Sullivan Petroleum Company, LLC 1508 18th Street, Suite 222 Bakersfield, California, 93301 PROPOSED MODIFICATION TO THE GROUNDWATER PUMP AND TREAT SYSTEM FOR THE SULLIVAN PETROLEUM COMPANY, LLC. DOWNTOWN CHEVRON SERVICE STATION 2317 "L"STREET, BAKERSFIELD, CALIFORNIA(CRWQCB-CVR CASE#5T15000836) Dear Mr. Sullivan: VEIR is pleased to present the following Proposed Modification to the Groundwater Pump and Treat (GWPT) System at the above-referenced site. Soil and groundwater investigation and mitigation activities are being required at the site by the California Regional Water Quality Control Board — Central Valley Region (CRWQCB-CVR) as a result of the discovery of gasoline-containing soil and groundwater in and around the area of the premium grade unleaded gasoline product pipeline extending to the southeastern multiple product dispenser at the site. The performance of on-site simultaneous soil vapor extraction (SVE) and air sparging (AS) has removed an estimated 141,942 pounds, which is equivalent to approximately 22,178 gallons of gasoline from the vadose zone since the initiation of SVE during the fourth quarter of 2002, removed all phase separated hydrocarbons (PSH) from the surface of the unconfined groundwater aquifer at a depth of approximately 115 fbg, and reduced of dissolved phase hydrocarbons in the aquifer beneath and downgradient (southeast) of the petroleum release by in excess of three orders of magnitude. Many of the criteria for characterization of the site as a low risk site appropriate for closure have been meet at the site. The source of the petroleum release has been identified and repaired; the vertical and lateral limits of hydrocarbons in the unsaturated and saturated zones has been performed; the SVE has mitigated the potential for additional hydrocarbons in the vadose zone to migrate to groundwater; PSH has been removed; and the remaining dissolved-phase hydrocarbon plume is stable and diminishing. The remaining criteria to be met is to further reduce the residual concentrations of dissolved-phase hydrocarbons until additional active mitigation is no longer cost effective. Sullivan Petroleum Company has expended in excess of $1,100,000 to perform these activities and is seeking reimbursement of these costs through a claim with the State Water Resources Control Board/Underground Storage Tank Cleanup Fund (SWRCB/USTCF) to the maximum $1,500,000 per occurrence. Sullivan Petroleum Company desires to budget the remaining $400,000 of the SWRCB/USTCF claim in the most cost effective manner, with the majority of the expenditures toward mitigation activities that will result in the most cost effective reduction of the remaining dissolved-phase hydrocarbons. Vestech EnvironmentafInfrastructure and restoration 4560 Caffornia Avenue, Suite 110, Bakersfiefd, Caffornia 93309 (661) 631-q T 1R(8347 0o Ea,�(661) 631-8007 Mr. Tim Sullivan Sullivan Petroleum Company, LLC October 17, 2008—Page 2 Continued operation of the on-site SVE and AS systems remains the most cost effective source removal mitigation activity and installation of the three additional downgradient water table and deep zone monitoring wells will be performed to further evaluate that the off-site plume is stable and diminishing. The CRWQCB-CVR has previously approved the installation and operation of both on-site and off-site GWPT systems. Based upon the successful reduction of on-site dissolved-phase hydrocarbons using the SVE and AS systems, the CRWQCB-CVR, in a telephone conversation on October 15, 2008, concurred with VEIR's recommendation to waive the requirement to install and operate the on-site GWPT system. Because the highest concentrations of dissolved-phase hydrocarbons are downgradient of the site, the CRWQCB-CVR reiterated their requirement to install and operate the off-site GWPT system. Sullivan Petroleum Company has obtained an access agreement with the downgradient property to the southeast of the site to install additional monitoring well MW-15 as well as the off-site GWPT system. In February 2008 VEIR submitted an application for an industrial wastewater discharge permit(WDP)with the City of Bakersfield Department of Public Works-(BDPW) for the GWPT equipment (submersible pumps, above ground storage tank, three 1,000 pound carbon filters, and underground discharge pipeline to the sewer). While permitting issues remain, including negotiating a reasonable connection fee for this temporary service (BDPW has proposed $30,000), VEIR anticipates obtaining the WDP during the fourth quarter of 2008 and installing the off-site GWPT system during the first quarter of 2009. To expedite the off-site groundwater cleanup activities during this extended period to receive the necessary permits, Sullivan Petroleum Company requested that the CRQWCB-CVR consider whether monthly overpurging of the impacted off-site monitoring wells should be conducted until operation of the off-site GWPT system is initiated. However, the CRWQCB-CVR, in the telephone conversation on October 15, 2008, determined that these interim activities would not be cost effective and that Sullivan Petroleum Company should proceed with installation of the off-site GWPT systems, as well as drilling the additional downgradient monitoring wells and continuing operation of the on-site SVE and AS systems. VEIR trusts that you will find this Proposed Modification to the Groundwater Pump and Treat System to your satisfaction. If you have any questions or require additional information, please contact Mr. Mark R. Magargee at(661)631-8347or at e-mail address mmagargee @veir.net. Respectfully submitted, BRED GEp� 9AGg9 Mark R. Magargee, P , C )ly 92 Consulting Hydrogeologist "'y MRM/jlt T��OFCA�� P� cc: Mr. John Whiting, CRWQCB-CVR Mr. Howard H. Wines, III, BFDES.D