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4TH QUARTER STATUS REP. 1/4/1993
I I I I I I I I I I I. I I I I I I I G J L Environmental Gary 4. Leary, R.E.A. Environmental Consultant 4009 FAIRWOOD ST. BAKERSFIELD~ CA 93306-1310 (805) 872-1543 January 4, 1993 BAKERSFIELD CITY FIRE DEPARTMENT Hazardous Material Division 2130 "G" Street Bakersfield, California 93301 Re: 601 Eureka Street, Bakersfield, California Property Owners: John M. and Deanna J. McCaule¥ Subject: Fourth Quarter Status Report Prepared by: GJL ENVIRONMENTAL Gary J. Leary, R.E.A. I I I I :1 I I I I I I '1 I I I I I Status of Investlqatlon and Cleanup Including the Results of &ll Investiqations Implemented to Date On March 19 - 20, 1992, a site characterization was performed to define the vertical and horizontal extent of the contamination plume. No cleanup activities have been implemented. The results of the site characterization are in Exhibit "1". Next Phase of Investigation On November 16, 1992, the Bakersfield City Fire Department, the lead agency, issued a letter which agreed with site assessment recommendation from John R. Wilson and Associates. See Exhibit "5". An Invitation for Bids was issued on December 23, 1992, to four (4) environmental consulting firms. See Exhibit "6". Method of Cleanup Proposed or Implemented to Date The cleanup method proposed is a vapor extraction unit. This was acceptable to the Bakersfield City Fire Department. Time Schedules for the Completion of the Investiaation of the site and Remediation No time schedules for completion of investigation or remediation has been set at this time. Method and Location of Disposal of the Released Hazardous Substance and any Contaminated Soil, Ground Water or Surface Water None has been chosen at this time. Manifest Required for Transport of Hazardous Substances Does not apply at this time. Monitorinq Well Data Including Ground Water Elevation, pH, ConductivitY, Temperature and Gradient No monitoring wells have been installed at this time. Tabulated Analytical Results of Ground Water or Sol1 Sampling The tabulated analytical results of soil sampling at the site can be found in Exhibit "2". I I I I I I I I I I I I I I I I I I I Site Map Hhoving the ,,Zero Line," of Contamination if Know, m, and Chanqes in ~nalyses and Gradient Measurements Over the Last Ouarter Does not apply at this time. Tabulated Data for all Monitoring Wells Including Ground Water Elevations Collected to Date No monitoring wells have been installed at this time. A Site Map Delineating Ground Water Elevation Contours Based on Recent Data; if the Site is in Remediation, Define the Zone of Capture for any Extraction Well(s) on the Contour Map Does not apply at this time. Tabulated Analytical Results from all Previous Sampling Events Including Laboratory Reports for the Most Recent Sampling Event and Chain of Custody Documentation All this information can be found in Exhibit "3". Site Map Delineating Contamination Contours for Soil and Ground Water Based on Recent Data The site map delineating contamination contours for soil. See Exhibit "4". There is no groundwater data at this time. The Quantity of Ground WaterfVapors, and Hydrocarbons Removed (in Gals., cu. ft., and lbs., Respectively), During the Reporting Period and Cumulative to Date Does not apply at this time. Times and Dates Equipment Was Not Operatina. Cause of Shutdown, and a Corrective ~ction Plun to Insure Similar Shutdowns do not Reoccur (Proposed Corrective ~ctions are to be Completed Within 30 Days of the System Shutdown) Does not apply at this time. Estimates of the Quantity of Contamination Remaining in Soil and Ground Water, and Time for Completing Remediation Does not apply at this time. Sincerely, GJL/ldh GJL ENVIRONMENTAL EXHIBIT I I I I I I I 1 I I I I I I I I I I '1 ~J'ILEiON & _,4~OCb4]'~-=" CIVIL ENGINEERING SURVEYING PRELIMINARY SITE CHARACTERIZATION OF GASOLINE IMPACTED SOIL CALIFORNIA SHEET METAL 601 EUREKA STREET BAKERSFIELD, CALIFORNIA PREPARED FOR: JOHN McCAULEY PREPARED BY: JOHN R. WILSON AND~ASSOCIATES, INC. I I~EGISTRATION EXPIRES 12-31-93 I SEPTEMBER, 1992 I I 221'7 'E' STREET · BAKERSFIELD, CA 93301 r~m~l .~~~4F~C) · I=AX rBO51 323-4723 I I I I I I I I I I t I I I I I I TABLE OF CONTENTS RESULTS OF PRELIMINARY SITE CHARACTERIZATION OF GASOLINE IMPACTED SOIL CALIFORNIA SHEET METAL i.'6', INTRODUCTION ~. ...................... 1 1.1 Site Description .................. 2 1 2 Background · 2 2.0 METHODS OF INVESTIGATION ................ 3 2.1 Drilling and Soil Sampling .......... ~ . . 3 2.2 Laboratory Analysis ................ 4 3.0 FINDINGS . '~. ,~.~ .................... 5 3.1 Geologic Conditions ........... ~ .... 5 3.2 Subsurface Conditions ............... 5 .3.3 Hydrogeology ...................... 5 3.4 Soil Vapor Monitoring ............... 6. 3.5 Laboratory Analytical Results '. . . . . . . . . . . 6 4.0 CONCLUSIONS ................. - . - . - - 7 4.1 Remedial Alternatives ................. 8 5 0 RECOMMENDATIONS' - 9 6.0 CLOSURE ......................... 9 Exhibit A Exhibit B Exhibit C APPENDIX A APPENDIX B Typical Section A-A Site Plan Typical Section B-B Boring Logs Laboratory Reports and Chain-of-custody I i I I I I I I I I I I I I I ! I PRELIMINARY SITE CHARACTERIZATION CALIFORNIA SHEET METAL SEPTEMBER 1992 1.0 INTRODUCTION PAGE NO.1 This report presents the result of a preliminary site characterization performed by WILSON & ASSOCIATES, INC. (W&A) at the above referenced site. The purpose of the characterization was to assess the lateral and vertical extent of soil impacted by gasoline hydrocarbons associated with a former 550 gallon underground gasoline storage tank removed from the property on December 17, 1991 by CALPI, INC. of Bakersfield, California. A concentration of Total Purgeable Hydrocarbons (TPH) as gasoline was detected at 810 mg/kg, and 10,000 mg/kg at depths of two and six feet beneath the former tank. Toluene was detected at 170 mg/kg, and 275 mg/kg at depths of two and six feet beneath the tank. See attached laboratory results. The concentrations of TPH as gasoline and the gasoline constituent volatile aromatics detected in the samples from beneath the tank are in excess of Regional Water Quality Control Board (RWQCB) recommended guidelines, and resulted in the Lead Implementing Agency (LIA) which is the City of Bakersfield Fire Department - Hazardous Materials Division requesting that an initial site characterization consisting of soil borings and laboratory analysis of soil samples be performed to assess the vertical and lateral extent of gasoline impacted soil in the vicinity of the former underground gasoline storage tank. The fuel dispenser was located directly above the tank, and therefore n© additional soil samples were required at this location. The scope of work for this project developed in conjunction with Mr. Joe Dunwoody of the City of Bakersfield Fire Department~ - Hazardous Materials Division. In addition, remedial action alternatives are presented. Work performed to date includes the following: * Development of site health and safety, and technical Work~. plans° '- * Drilling and sampling of six exploratory soil borings to a maximum depth of 90 feet below surface grade. Laboratory analysis of nineteen selected soil samples for Total Purgeable Hydrocarbons as gasoline, and the gasoline constituent volatile aromatics. Preparation of this report presenting our conclusions, recommendations, and remedial alternatives for the site. results, action I I I I I I I I I I ! I I I I I I PRELIMINARY 'SITE CHARACTERIZATION CALIFORNIA SHEET'~METAL SEPTEMBER 1992' 1.1 Site D~scriPtion PAGE NO.2 The subjec~ site is located on the south side of Eureka Street in the City of Bakersfield, Kern County, California. The site was used as a commercial "Sheet Metal Facility". The underground fuel tank was used to provide fuel for the service trucks. The site is situated within a developed urban and commercial area. Nearby properties are primarily commercial businesses along both sides of Eureka Street, and residential areas to the south. The overall site topography is essentially flat. 1.2 Background. Based on a review of analytical results, a 550. gallon underground gasoline storage tank, and dispenser located directly~ above the tank were removed under City of Bakersfield Permit Number BP0031 from the above referenced property. Reportedly, no soil was removed from the site during removal of the tanks. ~ Soil samples were collected at depth of two and six feet from beneath the removed tanks. The samples from beneath the gasoline were analyzed for the presence of total purgeable hydrocarbons (TPH) s gasoline, and the gasoline'constituent volatile aromatics (BTEX). Gasoline was detected at 810 mg/kg, and 1,000 mg/kg at depths of two and six feet beneath the former tank. Benzene was detected in the two samples at 4.4 mg/kg and 98 mg/kg at depths of two and six feet. Toluene was detected at 170 mg/kg, and 275 mg/k~ at depths of two and six feet beneath the tank. Ethyl benzene was detected at 19 mg/kg, and 170 mg/kg at depths of two and six feet beneath the tank. The concentration of TPH as gasoline and the gasoline constituent volatile aromatics detected in the soil samples from beneath the tank are in excess of Regional Water Quality Control Board (RWQCB) recommended guidelines, and resulted in the Lead Implementing Agency (LIA) which is the City of Bakersfield Fire Department - Hazardous Materials Division requesting that an initial site characterization consisting of soil borings and laboratory analysis of soil samples be performed to assess the vertical and lateral extent of gasoline impacted soil in the vicinity of the former underground gasoline storage tank. The fuel dispenser was located directly above the tank, and therefore no additional soil samples were required at this location. I I I I I I i I ! I I I I I I PRELIMINARY SITE CHARACTERIZATION CALIFORNIA SHEET METAL SEPTEMBER 1992 PAGE NO.3 Based on these analytical results WILSON & ASSOCIATES, INC. has been retained by John McCauley to perform a site characterization in the vicinity of the former gasoline tank Below are the results of .the site characterization. 2.0 METHODS OF INVESTIGATION 2.1 Drilling and Soil Sampling Prior to commencing field operations, a technical work plan was reviewed and approved by City of Bakersfield Fire Department - Hazardous Materials Division personnel. Underground Service Alert was notified 48 hours in advance of the site activities. Drilling commenced on March 19, 1992 using a CME~" B-75 truck mounted drill rig, operated by Soils Engineering, Inc. of Bakersfield, California, and equipped with six 3/4-inch diameter hollow-stem augers. The augers were steam cleaned prior to use to minimize the possibility of crosslcontamination. A total of six borings were drilled within this phase of soil characterization. One soil boring, B-1 was drilled through the approximate "center" of 'the tank excavation to a depth of ninety feet. A second soil boring, B-2, was drilled on the south edge of the tank excavation to a depth of thirty feet. A third soils boring, B-3, was drilled southeast of the tank excavation to a depth of forty feet. The fourth soil boring B-4, was drilled~ southwest of the tank excavation to a depth of forty feet. Boring number five, B-5, was drilled northwest of the tank excavation to a depth of forty feet. The sixth boring, B-6, was drilled northeast of the tank excavation to a depth of forty feet. Soil sample~ were collected at 5-foot intervals in each of the borings using a split-spoon sampler (ASTM D 3550 with shoe similar to ASTM D 1586) equipped with three 6-inch by 2.5-inch diameter stainless steel sleeves for soil retention. The soil samples were obtained by driving the sampler with a 140-pound hammer dropping 30 inches in accordance with ASTM D 1586. I I I I I I I I I I I I I I i I i PRELIMINARY SITE CHARACTERIZATION CALIFORNIA SHEET METAL SEPTEMBER 1992 PAGE NO.4 The lowermost sleeve at'each sample intervals was screened for total organic vapors with a photo-ionization detector (PID). Headspace vapor' analysis was performed by first discarding a portion of the soil retained at one end of the sleeve to produce a headspace. The sleeve was then capped and the probe of the PID was inserted through a hole in the cap and into the headspace for analysis. The PID readings are recorded on the boring logs. The middle sample sleeve was immediately transferred to a glass jar, capped, security taped, labeled, and placed on ice for transportation to a California Department of Health Services (DOHS) certified laboratory. Strict chain of custody procedures were utilized for all samples collected to ensure sample integrity and to.document sample possession from the time of collection to the final destination. Ail sampling equipment was washed with TSP (tri-sodium phosphate) cleanser, and rinsed with tap water and de-ionized water prior to sampling, between sample intervals, and between borings to minimize the possibility of cross-contamination. The drill auger was steam cleaned between borings, also to minimize the possibility of cross-contamination. Contaminated drill cuttings and soil sample spoils were stored in D.O.T. approved 55-gallon drums, sealed, and left on-site pending appropriate disposal. After drilling, the borings were backfill'ed with a 2 sack cement, sand, and bentonite clay grout to seal the abandoned boreholes. 2'.2 Laboratory Analysis Nineteen samples were selected for analysis based on: a) observations and greatest PID readings of odorous soil, b) observations and PID readings of the first encountered sampling locations containing apparently uncontaminated soils, which would Serve to define the lateral and vertical extent-of contamination, and c) requirements that the two lowermost samples of each boring which detects gasoline hydrocarbons be submitted for analysis. The nineteen samples were analyzed at BC Laboratories for benzene, toluene, ethyl benzene and total xylenes (BTEX) by the USEPA Test Method 8020, andtotal purgeable hydrocarbons (TPH) as gasoline by the DOHS LUFT Manual Method. I I I I '1 I ! I I I I I I I I I PRELIMINARY'~SITE CHARACTERIZATION · 'CALIFORNIA SHEET'METAL SEPTEMBER 1'992 3.0 RESULTS OF' ENVIRONMENTAL ASSESSMENT ~3.1 Sub-Soii'~C°nditions PAGE NO.5 Regional Geology: The site is located in the southern part of ' the Great Valley. The Great Valley is a north-south trending valley, approximately 400 miles long by 50 miles wide. Surface and groundwater in the San Joaquin Valley is derived predominantly from the Sierra Nevada mountain range to the east, and is transported by five major rivers, the southern most being the Kern River. The subject site is located approximately three miles south of the Kern River. Site Soils: Soil deposits in the study area include alluvial sediments of the Kern River Formation, which dip to the southwest. The deposits are alluvium consisting of poorly graded fan deposits. The depth to the regional unconfined aquifer .is approximately 200 feet below surface grade beneath the site with the direction of groundwater flow to the south (Kern County Water Agency, Improvement District No. 4, 1991 Report on Water Conditions, February, 1992 ). The nearest known occurrence of perched groundwater is 2 miles to the southwest at a depth of 20 feet in the abandoned Kern River channel to the ancient Kern Lake Bed (Kern County Water Agency, 1991 Water S~pply Report, May, 1992). No perched groundwater is known to exist beneath the subject site. .3.2 Subsurface~ Conditions :. .. . Subsurface material encountered during drilling included artificial fill in the former tank pit underlain by alluvium to the total depth of each boring. The artificial fill was encountered, in the upper portion of boring B-1 from the surface to approximately 10 feet. The fill consisted of a medium brown, silty sand (SM). 3.3 ~ydrogeology Groundwater was not encountered in any of the borings drilled during this project. The project to the regional unconfined aquifer is approximately 200 feet below surface grade beneath the site with the direction of groundwater flow to the south (Kern County Water Agency, Improvement District No. 4, 1992 Report on Water Conditions, February, 1992). The nearest known of perched groundwater is 2 miles to the southwest at a depth of 20 feet in the abandoned Kern River channel to the ancient Kern Lake Bed (Kern I I I I I I I I I I I PRELIMINARY SITE'CHARACTERIZATION CALIFORNIA SHEET.METAL SEPTEMBER 1992 '.. PAGE NO.6 County Water Agency, 1991 Water Supply Report, May, 1992). perched groundwater is known to exist beneath the subject site. 3.4 Soil vapor"MOnitoring No Soil samples collected during drilling were monitored with a photo-ionization detector (PID) to evaluate organic vapor concentrations. The PID was calibrated with an isobutylene standard of 100 per million (ppm) and contained an 11.8 electron volt (eV) lamp, .capable of detecting benzene (9.25 eV). Boring Logs presents the PID readings as they were recorded in the field. 3.5 Laboratory Analytical Results . . Boring B-1 was advanced through the center of the former 55.0 gallon tank where (TPH) as gasoline were detected at 6,000 mg/kg at 5 feet and 15 feet, at 3,100 mg/kg at 30 feet, at 3,000 mg/kg at 45 feet and 18,000 mg/kg at 60 feet. TPH as gasoline was not detected at 75 feet, 80, 85 and 90 feet. TPH wad detected in Boring B-2 at 12,000 mg/kg at 15 feet and at 400 mg/kg at 30 feet. TPH as gasoline was detected in Boring B-3 at 30,000 mg/kg at 25 feet. TPH as gasoline was detected in Boring B-5 at 7,000 mg/kg at a depth of 40 feet. TPH as gasolin~'was not detected at 30 and 40 feet in B-4, at 15 feet in B-5 and at depths of 20, 30 and 40 feet in B-6. The gasoline constituent volatile aromatic benzene was' detected in eight of the nineteen samples analyzed. Benzene was detected in; Boring B-1 at 5 mg/kg at 45 feet, 110 mg/kg at 60 feet and 0.084 mg/kg at 90 feet, Boring B-2 at 1,000 mg/kg at 15 feet and 0.2 mg/kg at 30 feet, Boring B-3 at 400 mg/kg at 30 feet, Boring B-5 at 0.011 mg/kg at 35 feet and 42 mg/kg at 40 feet. Benzene was not detected in B-1 at depths of 5, 15, 30, 75 80 and 85 feet, B-2 at depths of 30 feet, and 40 feet, B-6 at depths of 20, 30 and 40 feet. Toluene was detected in thirteen of the nineteen samples. Toluene was detected in; Boring B-1 at 210 mg/kg at 5 feet, 390 mg/kg at 15 feet, 86 mg/kg at 30 feet, 160 mg/kg at 45 feet, 1,300 mg/kg at 60 feet, 0.047 mg/kg at 85 feet, 0.16 mg/kg at 90 feet, Boring B-2 at 1,500 mg/kg at 15 feet, 1.2 mg/kg at 30 feet, Boring B-3 at 3,400 mg/kg at 25 feet, Boring B-5 at 0.017 mg/kg at 15 feet, 540 mg/kg at 40 feet, Boring B-6 at 0.008 mg/kg at 40 feet. Toluene was not detected in Boring B-1 at 75 and 80 feet, B-4 at 30 and 40 feet, B-6 at 20 and 30 feet. I i I I I I I I ! I I I I I I I PRELIMINARY SITE CHARACTERIZATION CALIFORNIA SHEET METAL SEPTEMBER '1'992: PAGE NO.7 Ethyl benzene was detected in ten of the nineteen samples~ analyzed. Ethyl benzene was detected in; Boring B-1 at 50 mg/kg at 5 feet, 170 mg/kg at 15 feet, 71 mg/kg at 30 feet, 75 mg/kg at 45 feet, 300 mg/kg at 60 feet and 0.049 mg/kg at 90 feet, Boring B-2 at 340 mg/kg at 15 feet, 4.7 mg/kg at 30 feet, Boring B-3 at 800 mg/kg at 35 feet, Boring B-5 at 160 mg/kg at 40 feet. Ethyl benzene was not detected in Boring B-1 at 75, 80 and 85 feet, Boring B-4 at 30 and 40 feet, B-5 at 15 feet, B-6 at 20, 30 and 40 feet. Due to the presence of "gasoline" in the soil, selected samples were analyzed for ~Lead. Lead was detected in B-1 at 5 feet at 39 mg/kg (TTLC) and 2.7 mg/1 (STLC), at 30 feet at 4.5 mg/kg (TTLC) at 85 feet at 4.5 mg/kg, at B-2 at 30 feet at 3.9 mg/kg, at B-6 at 20 feet at 3.6 mg/kg and at 40 feet at 8.5 mg/kg. Regional Water Quality Control Board recommended guidelines for gasoline, and the gasoline constituent volatile aromatics, benzene, toluene, recommended and total xylenes have 'been calculated using the LUFT methodology by multiplying the most stringent current federal or state water quality standards by a factor of 1,000 to account for attenuation due to site-specific parameters including vertical separation to ground water, soil lithology, fractures in subsurfaces, annual average precipitation, and any direct conduits to ground~'water. The limits are 1,000 mg/kg for TPH as gasoline, 1.0 mg/kg for benzene and toluene, and 50 mg/kg for ethyl benzene and total xylenes. 4.0 CONCLUSIONS The data obtained from the field operations suggest that soil impacted with gasoline hydrocarbons, and the gasoline constituent volatile aromatics at concentrations in excess of RWQCB recommended guidelines exists at the subject site in the area directly beneath the former 550 gallon underground gasoline storage tank to a depth of 60-75 feet, and laterally of approximately 35 feet. The estimated volume of soil with concentrations of gasoline hydrocarbons in excess of 1,000 mg/kg, and volatile aromatics in excess a their respective recommended guidelines is 6,000 cubic yards. I I I PRELIMINARY SITE CHARACTERIZATION CALIFORNIA SHEET METAL. SEPTEMBER 1992 4.1 Remedial'~Acti°n Alternatives PAGE NO.8 i I I I I I I I I I I ! I I At least four options for remediation of the soil are applicable to the site 1) excavation and transportation of soil to an approved landfill or recycling facility, 2) in-situ vapor extraction, 3). excavation and uncontrolled aeration, and 4) no action. In the first action, impacted soil would be excavated and transported to a suitable disposal site or recycling firm. Due to the depth of the contaminated soil we believe that the existing means of excavation would not be suitable for this site. The next option is to treat the soil through in-situ vapor' extraction. Wells are drilled into the impacted soil. The hydrocarbon vapors are extraction and treated as a unit such as a thermal oxidizer. We believe that three wells would effectively extract the gasoline hydrocarbons, and the time frame· for successful treatment would be approximately six to nine months. The cost for installing the wells and below ground manifolding would be approximately $32,000.00. The monthly cost rental of an extraction unit will be approximately $8,500.00/month, or $42,5000 for five months, including the cost of electricity, and/or supplemental fuel. Verification, soil sampling and system abandonment would be approximately $17,300. Management fees including Work Plans, regulatory liaison, supervision, reports, etc. will be approximately $10,000. The overall cost is estimated to be $101,800. However, we believe that additional borings will be necessary to further define the lateral extent of the contamination.. The third option is to excavate the soil and "aerate" on-site. Again due to the depth of the. contamination we believe that excavation of the soil is not acceptable. The fourth option is to leave the site "as-is" and allow natural in-situ biodegradation to occur. Due to the high concentrations of gasoline and the gasoline constituent volatile aromatic we believe that there is a "risk" of leaking hydrocarbons to groundwater,~ which is at a depth of approximately 200 feet. Long term monitoring of the hydrocarbons may be required at additional costs. I I I I I ! I PRELIMINARY SITE CHARACTERIZATION CALIFORNIA SHEET METAL SEPTEMBER 5.0 RECOMMENDATIONS PAGE NO.9 WILSON AND ASSOCIATES, INC. would recommend that two additional borings be completed in order to assess the lateral extent of the contamination. One boring would be located southwest of Boring B-3, and another boring would be located northwest of Boring B-5. At the completion of the laboratory analysis. W&A would prepare a Work Plan for implementation of a vapor extraction 6.0 CLOSURE '. This report has been prepared for the exclusive use of the John McCauley as it pertains to the location of the former gasoline tank at 601 Eureka Street, Bakersfield, California. The conclusions and recommendations rendered are opinions based on information obtained within the scope of work authorized by the client. This report should not be regarded as a guarantee that no further contamination, beyond that which may have been detected within the scope of this study, is present on or beneath the site. If additional information regarding the possible presence or past use of hazardous materials at the site becomes available, then the need for further field investigation should be re-evaluated. Similarly, if suspected contamination is encountered during earthwork or construction activities, a qualified engineer or geologist should be on-site to monitor the soils and collect samples for laboratory analysis. Work has been performed in accordance with generally accepted practices in geotechnical ~nd environmental engineering, engineering geology, and hydrogeology. No other warranty, either expressed or implied, is made. Thank you for this opportunity to be of service. If you have.any questions regarding this .report or the information contained herein, please contact this office at your convenience. '1 I I I I I I I I I I I I I i I I I I I I ~ '1 I I I I I I I ,./ Z I I I WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON Petroleum Hydrocarbons 323 -6460 Date of Report: 03/30/92 Lab ~: 2517-1 :i Sample Description: PROJECT: 601 EUREKA: 1-5' (SOIL) 03'-19-92 FROM 0800 HRS TO 1530 HRS COLLECTED BY J.R. WILSON TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil I I ;I ! I Date Sample Collected: 03/19/92 Constituents Date Sample Received ® Lab: 03/19/92 Date Analysis Completed: 03/27/92 Minimum Analysis Reporting Reporting Results Units Level Benzene None Detected mg/kg 20. Toluene 210. mg/kg 20. Ethyl Benzene 50. ~' mg/kg 20. o-Xylene 360. mg/kg 20. m & p-Xylene 600. 'mg/kg 20. Total Petroleum Hydrocarbons (gas) 6000. mg/kg 5000. Note: High reported PQL due to high concentrations of tar§et analytes in sample. I I I California D.O.H.S. Cert. ~1186 Department Supervis~ 41 (/D Ar3as (2t. · Bakersfield. ICA 933(2~ · (IE)Ob-] 3;27--491 I · FAX (EI(2~ 32R7-191 8 WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON 323-6460 Date Reported: 03/30/92 Date Received: 03/19/92 Laboratory No.: 2517-1 Page Sample Description: PROJECT: 601 EUREKA: 1-5' (SOIL) 03-19-92 FROM 0800 HRS TO 1530 HRS COLLECTED BY J.R. WILSON TOTAL CONTAMIND~NTS (Title 22, Article 11, California Code of Regulations) Regulatory Criteria Method STLC TTLC Constituents S.ample Results Units P.Q.L. Method . mq/L mq/kq Lead 39. mg/kg 4.0 SWo6010 5.0 1000. Comment: Ail constituents reported above are in mg/kg (unless otherwise stated) on an as received (wet) sample basis. Results reported represent totals (TTLC) as sample subjected to appropriate techniques to determine total levels. P.Q.L. = STLC = TTLC Practical Quantitation Limit (refers to the least amount of analyte detectable based on sample size used and analytical technique employed. None Detected (Constituent, if present, would be less than the method P.Q.L.) . Soluble Threshold Limit Concentration Total Threshold Limit Concentration REFERENCES: SW = "Test Methods for Evaluat.ing Solid Wastes Physical/Chemical Methods", SW 846, September, 1986. Department Supervisor 4100 ~rJas Cc. · I~aker~ield. CA 93~C)E] · (l~--J 327-491 I · FAX (E~I~-)32_7-1918 I APR 1 ? 1992 WILSu,,~ ~, Ab;~UC. INC. :I WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON 323-6460 Date Reported: 04/14/92 Date Received: 03/19/92 Laboratory No.: 2517-1~kDD'N WET TEST EXTRACT CONT/kMIN/LNTS AND~LYZED ACCORDING TO TITLE 22, ARTICLE Il, CALIFORNIA CODE OF REGULATIONS FOR HAZARDOUS WASTE DETERMINATION (STLC) Sample Description: PROJECT: 601 EUREKA: 1-5' (SOIL) 03-19-92 FROM 0800 HRS TO 1530 HRS COLLECTED BY J.R. WILSON I Constituents Regulatory Sample Results Method Criteria mq/liter P.Q.L. Method STLC Lead 2.7 0.5 SW-6010 5.0 I I I I I i I I I comment: All metals reported above are in mg/liter on a filtrate bas~s (STLC). These results are based on extracting sample according to Title 22, Article 11, California Administrative Code using a 48-hour citric acid (deionized water for hexavalent chromium) extraction. P.Q.L. = Practical Quantitation Limit (refers to the least amount of analyte detectable based on sample size used and analytical technique employed. N.D. = None Detected (If constituent is present it would be less than the method P.Q.L. listed to the right. STLC = Soluble Threshold Limit Concentration REFERENCES: SW = "Test Methods for Evaluating Solid Wastes Physical/Chemical Methods", SW 846, September, 1986. Depa~c~nt Supervisor O I 41 03 Atlas Ct. - Bakersfield, CA 93308 · (80~ 327-491 I · FAX (805) 327ol 91B '1 WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON Petroleum Hydrocarbons 323-6460 Date of Report: 03/31/92 Lab ~: 2517-3 I Sample Description: PROJECT: 601 EUREKA: 1-15' (SOIL) 03-19-92 FROM 0800 HRS TO 1530 HRS COLLECTED BY J.R. WILSON I TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil I Date Sample Date Sample Collected: Received @ Lab: 03/19/92 03/19/92 I Analysis Constituents Results I Benzene None Detected Toluene 390. . . Ethyl Benzene 170. i o-Xylene 230. m & p-Xylene 960. Total Petroleum Hydrocarbons (gas) 6000. ! Date Analysis Completed: 03/30/92 Minimum Reporting Reporting Units Level mg/kg 100. mg/kg 10. mg/kg 10. mg/kg 10. mg/kg 10. mg/kg 2000. I I I I Note: High reported PQL due to hi§h concentrations of target analytes in sample. California D.O.H.S. Cert. ~1186 Department Supervisor/ 41 f/DAr]as C~t. · Bakersfielc~, CA 93308 · (15)C~] 327~491 I · F:~kX (80~ 3~7-1911~ rF:U~TORII::S I I I WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON Petroleum Hydrocarbons 323-6460 Date of Report: 03/27/92 Lab ~:' 2517-6 Sample Description: PROJECT: 601 EUREKA: 1-30' (SOIL) 03-19-92 FROM 0800 HRS TO 1530 HRS COLLECTED BY J.R. WILSON TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil I I I I I Date Sample Date Sample Collected: Received ® Lab: 03/19/92 03/19/92 Analysis Constituents Results Benzene None Detected Toluene 86. Ethyl Benzene 71. o-Xylene 88. m & p-Xylene 350. Total Petroleum Hydrocarbons (gas) 3100. Date Analysis Completed: 03/26/92 Minimum Reporting Reporting Units Level mg/kg 2. mg/kg 2. mg/kg 2. mg/kg 2. mg/kg 2. mg/kg 500. I I I i Note: High reported PQL due to high concentrations of target analytes in sample. California D.O.H.S. Cert. #1186 Department Supervisor 410D.~tlas C~. · Bakersfield, CA 93._q(D~ · ~ 327-491 I · I:~X (15)(D~ 3~'7-1918 I I WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON 323-6460 Date Reported: 04/02/92 Date Received: 03/19/92 Laboratory No.: 2517-6 Page 1 Sample Description: PROJECT: 601 EUREKA: 1-30' (SOIL) 03-19-92 FROM 0800 HRS TO 1530 HRS COLLECTED BY J.R. WILSON I I I T OT~SJu CONTAMINA/qTS (Title 22, Article 11, California Code of Regulations) Constituents Sample Results Units Lead 4.5 mg/kg Regulatory Criteria Method STLC TTLC P.Q.L. Method mq/L mq/kq 4.0 SW-6010 5.0 1000. I Comment: I P .Q.L. = i N.Do = STLC = TTnC -- All constituents reported above are in mg/kg (unless otherwise stated) on an as received (wet) sample basis. Results reported represent totals (TTLC) as sample subjected to appropriate techniques to determine total levels. Practical Quantitation Limit'(refers to the least amount of analyte detectable based on sample size used and analytical technique employed. None Detected (Constituent, if present, would be less than the method P.Q.L.). Soluble Threshold Limit Concentration Total Threshold Limit Concentration I I I REFERENCES: SW = "Test Methods for Evaluating Solid Wastes Physical/Chemical Methods", SW 846, Septeraber, 1986. Department Supervisor 41 (30Adas OC. · Bakersfield. CA 9~1~ · (EOS) 327~4911 · FAX (8(35) 327-1 91 8 IOI::~ATOt~IES I I I WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON Petroleum Hydrocarbons 323-6460 Date of Report: 03/27/92 Lab ~: 2517-9 ISample Description: PROJECT: 601 EUREKA: 1-45' (SOIL) 03-19-92 FROM 0800 HRS TO 1530 HRS COLLECTED BY J.R. WILSON I TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method ~ Modified EPA 8015 Individual constituents by EPA Method 5030/8020. I Sample Matrix: Soil I Date Sample Date Sample Collected: Received ® Lab: 03/19/92 03/19/92 I Analysis Constituents Results I Benzene 5. Toluene 160. Ethyl Benzene 75. i o-Xylene 140. m & p-Xylene 250. Total Petroleum Hydrocarbons (gas) 3000. ! Date Analysis Completed: 03/26/92 Minimum Reporting Reporting Units Level mg/kg 5. mg/kg 5. mg/kg 5. mg/kg 5. mg/kg 5. mg/kg 1000. I I I I '1 Note: High reported PQL due to high concentrations of target analytes in sample. California D.O.H.S. Cert. ~1186 Department Supervisor 4 q CO Adas Cc. · Bakersfield. CA 93308 · (E~-__~ 3~7-491 I · FAX (BOb-) 327-1918 Petroleum Hydrocarbons WILSON & ASSOCIATES Date of 2217 "E" STREET Report: 03/31/92 BAKERSFIELD, CA 93301 Lab #: 2517-12 Attn.: JOHN R. WILSON 323-6460 Sample Description: PROJECT: 601 EUREKA: 1-60' (SOIL) 03-19-92 FROM 0800 HRS TO 1530 HRS COLLECTED BY J.R. WILSON TEST METHOD: TPH D.O.H.S.L.U.F.T. Manual Method Modified by / EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil Date Sample Date Sample Date Analysis Collected: Received ® Lab: Completed: 03/19/92 03/19/92 03/30/92 Minimum Analysis Reporting Reporting' Constituents Results Units Level Benzene 110. mg/kg 20. Toluene 1300. mg/kg 20. Ethyl Benzene 300. ~' mg/kg 20. o-Xylene 460. mg/kg 20. m & p-Xylene 2100. 'mg/kg 20. Total Petroleum Hydrocarbons (gas) 13000. mg/kg 5000. Note: High reported PQL due to high concentrations of target analytes in sample. California D.O.H.S. Cert. ~1186 Department Supervisor 4100 Atlas Cc. · Bakersfield. CA E;330~ · (IEE~-1327-491 I · I--AX (8(Z~ :3~-1918 I ! I I I I I ! I I I I I I I I Petroleum Hydrocarbons WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON 323-6460 Date of Report: 03/30/92 Lab ~: 2517-15 Sample Description: PROJECT: 601 EUREKA: 1-75' (SOIL) 03-19-92 FROM 0800 HRS TO 1530 HRS COLLECTED BY J.R. WILSON TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil Date Sample Collected: 03119192 Constituents Date Sample Received ® Lab: 03/19/92 Date Analysis Completed: 03/27/92 Analysis Reportin9 Results Units Minimum Reporting Level Benzene None Detected mg/k9 0.005 Toluene None Detected mg/k9 0.005 Ethyl Benzene None Detected ~' mg/kg 0.005 o-Xylene None Detected m9/kg 0.005 m & p-Xylene None Detected mg/k9 0.005 Total Petroleum " Hydrocarbons (gas) None Detected mg/kg 1. California D.O.H.S. Cert. ~1186 Department Supervisor 4100~das Cc. · E)akers~eld. C~ 9330~ · (~05) 327~491 I · F~X (E)Ob--J ~327-1918 WILSON & ASSOCIATES i 2217 "E" STREET , BAKERSFIELD, CA 93301 , Attn.: JOHN R. WILSON 323-6460 Date Reported: 04/02/92 Date Received: 03/19/92 Laboratory No.: 2517-15 Page 1 ISample Description: PROJECT: 601 EUREKA: 1-75' (SOIL) 03-19-92 FROM 0800 HRS TO 1530 HRS COLLECTED BY J.R. WILSON TOTAL CONTAI~IND2qTS (Title 22, Article 11, California Code of Regulations) Constituents Sample Results Units · Lead None Detected mg/kg Regulatory Criteria Method .STLC TTLC P.Q.L. Method mq/L mq/kq 2.5 SW-6010 5.0 1000. I Comment: I P.Q.L. = Ail constituents reported above are in mg/kg (unless otherwise stated) on an as received (wet) sample basis. Results reported represent totals (TTLC) as sample subjected to appropriate techniques to determine total levels. Practical Quantitation Limit (refers to the least amount of analyte detectable based on sample size used and analytical technique employed. I N.D. = None Detected (Constituent, if present, would be less than the method P.Q.L.) . STLC = Soluble Threshold Limit Concentration TTLC = Total Threshold Limit Concentration IREFERENCES: SW = "Test Methods for Evaluatin9 Solid Wastes Physical/Chemical Methods", SW 846, September, 1986. Department S .pervisor I 41 OD ~t]as Cc. · Bakersfield. C~ 9~B308 · (15)1~-] 327~491 I · FAX (15)C)b--q 327-1 ~18 WILSON & ASSOCIATES I 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON Petroleum Hydrocarbons 323-6460 Date of Report: 03/31/92 Lab ~: 2517-16 I Sample Description: PROJECT: 601 EUREKA: 1-80' (SOIL) 03-19-92 FROM 0800 HRS TO 1530 HRS COLLECTED BY J.R. WILSON TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method Modified EPA 8015 Individual constituents by EPA Method 5030/8020. I Sample Matrix: Soil IDate Sample Collected: 03/19/92 I Constituents Benzene Toluene Ethyl Benzene o-Xylene m & p-Xylene Total Petroleum Hydrocarbons (gas) ! Date Sample Received ® Lab: 03/19/92 Analysis Results None Detected None Detected None Detected None Detected None Detected None Detected Date Analysis Completed: 03/30/92 Reporting Units mg/kg mg/kg mg/k9 mg/k9 mg/k9 mg/k9 Minimum Reportin9 Level 0.005 0.005 0.005 0.005 0.005 I I I California D.O.H.S. Cert. ~1186 Department Supervisor 4100 ~tlas Ct. · Fqakems~eld. CA 93~ · (1~0~ 327~491 I · FAX (805-] 327-191 8 Petroleum Hydrocarbons WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: ' JOHN R. WILSON 323-6460 Date of Report: 03/31/92 Lab ~: 2517-17 Sample Description: PROJECT: 601 EUREKA: 1-85' (SOIL) 03-19-92 FROM 0800 HRS TO 1530 HRS COLLECTED BY J.R. WILSON TEST METHOD: TPH by D.O.N.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil Date Sample Collected: 03/19/92 Constituents Date Sample Received ® Lab: 03/19/92 Date Analysis Completed: 03/30/92 Analysis Reporting Results Units Minimum Reporting Level Benzene None Detected mg/kg 0.005 Toluene · 0.047 ,~. mg/kg 0.005 Ethyl Benzene None Detected mg/kg 0.005 o-Xylene None Detected mg/kg 0.005 m & p-Xytene 0.014 mg/kg 0.005 Total Petroleum '~ Hydrocarbons (gas) None Detected mg/kg 1. California D.O.H.S. Cert. #1186 Department Supervisor 93308 · (15~)5] 327-491 I · FAX (8(2b--] 3:27-1918 I ! WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON 323-6460 Date Reported: 04/02/92 Date Received: 03/19/92 Laboratory No.: 2517-17 Page 1 I Sample Description: PROJECT: 601 EUREKA: 1-85' (SOIL) 03-19-92 FROM 0800 HRS TO 1530 HRS COLLECTED BY J.R. WILSON TOTAL CONTAMINANTS (Title 22, Article 11, California Code of Regulations) Regulatory Criteria Method -STLC TTLC P.Q.L. Method mq/L mg/k~ Constituents Sample Results Units Lead 4.5 mg/kg 2.5 SW-6010 5.0 10007 Comment: I P.Q.L. = Ail constitueDts reported above are in mg/kg (unless otherwise stated) on an as received (wet) sample basis. Results reported represent totals (TTLC) as sample subjected to appropriate techniques to determine total levels. Practical Quantitation Limit (refers to the least amount of analyte detectable based on sample size used and analytical technique employed. N.D. None Detected (Constituent, if present, would be less than the method P.Q.L.) . STLC Soluble Threshold Limit Concentration TTLC = Total Threshold Limit Concentration REFERENCES: SW = "Test Methods for Evaluating Solid Wastes Physical/Chemical Methods", SW 846, September, 1986. Department Supervisor 4100 Atlas ~. · Bakersfielc~, C~A 9330~ · (BC~ 327~491 I · F~X (EiC)b--1327-19119 ~ILou,, Petroleum Hydrocarbons WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON 323-6460 Date of Report: 04/06/92 Lab ~: 2576-1 Sample Description: CALIF. SHEET METAL: 1 90' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON TEST METHOD: Sample Matrix: TPH by D.O.H.S. / L.U.F.T. Manual Method Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Soil Date Sample Collected: 03/20/92 Constituents Benzene Toluene Ethyl Benzene o-Xylene m & p-Xylene Total Petroleum Hydrocarbons (gas) Date Sample Received ® Lab: 03/23/92 Date Analysis Completed: 04/05/92 Analysis Reporting Results Units 0.084 mg/kg 0.16 mg/kg 0.049 ~- mg/kg 0.026 mg/kg 0.062 mg/kg None Detected mg/kg Minimum Reporting Level, 0.005 0.005 0.005 0.005 0.005 I I I California D.O.H.S. Cert. 41186 Department Supervisor 41 (3D Ar, les C~. · Bakersfield, CA ~ · ~E~ 3~7-,491 I · FAX (B0b--J 32'7-191B I I I I I I I I i I I I I ! I Petroleum.Hydrocarbons WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON 323-6460 Date of Report:. 04/06/92 Lab ~: 2576-2 Sample Description: CALIF. SHEET MET3~L: 2 15' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON TEST METHOD: Sample Matrix: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Soil Date Sample Collected: 03/20/92 Constituents Benzene Toluene Ethyl Benzene o-Xylene m & p-Xylene Total Petroleum Hydrocarbons (gas) Date Sample Received @ Lab: 03/23/92 Date Analysis Completed: o4/o5/92 Analysis Reporting Results Units Minimum Reporting Level 1000. mg/kg 5. 1500. mg/kg 5. 340. mg/kg 5. 480. mg/kg 5. 2000. mg/kg 5. 12000. mg/kg 1000. High reported PQL due to high concentration of target analytes. California D.O.H.S. Cert. $1186 Department Supervisor 4100A~as CC. · Bakersfield, CA ~)3308 · (BOb-) 3~R7~491 I · FAX (805) ~7-1918 I I I ! I I I I I I I :1 :1 I I I Petroleum Hydrocarbons WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON 323-6460 Date of Report: 04/06/92 Lab ~: 2576-4 Sample Description: CALIF. SHEET METAL: 2 - 30' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil Date Sample Collected: 03/20/92 Constituents Date Sample Received ® Lab: 03/23/92 Date Analysis Completed: 04/05/92 Analysis Reporting Results Units Benzene 0.2 Toluene 1.2. Ethyl Benzene 4.7 o-Xylene 39. m & p-Xylene 10. Total Petroleum Hydrocarbons (gas') 400. mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg Minimum Reporting Level · 0.1 0.1 0.1 0.1 0.1 High reported PQL due to high concentrations of target analytes. .California D.O.H.S. Cert. ~1186 Department Super¥.isor 4100Atlas CC. · Bakersfield, CA 93308 · (805) 327~491 I · FAX (80b--) 3~-~7o1918 I I i I I I I I I I I i I I I I I I_ABORATOI~IE~ WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301' Attn.: JOHN R. WILSON 323-6460 Date Reported: 04/03/92 Date Received: 03/23/92 Laboratory No.: 2576-4 Page Sample Description: CALIF. SHEET METAL: 2 - 30' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON TOTAL CONTAMINANTS (Title 22, Article 11, California Code 'of Regulations) Method Constituents S.amDle Results Units P.Q.L. Method Lead 3.9 mg/kg 3.5 SW-6010 Regulatory Criteria STLC TTLC mq/L mq/kq 5.0 1000. Comment: Ail constituents reported above are in mg/kg (unless otherwise stated) on an as received (wet) sample basis. Results reported represent totals (TTLC) as sample subjected to appropriate techniques to determine total levels. P.Q.L. = STLC = TTLC = Practical Quantitation Limit (refers to the least amount of analyte detectable based on sample size used and analytical technique employed. None Detected (Constituent, if present, would be less than the method P.Q.L.). Soluble Threshold Limit Concentration Total Threshold Limit Concentration REFERENCES: SW = "Test Methods for Evaluating Solid Wastes Physical/Chemical Methods", SW 846, September, 1986. Department Supervisor 4100 Attas Ct. · Bakersfield. CA 93308 · (805] 327~4911 · FAX (805-'J 3~----o'7-1918 I I WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON Petroleum Hydrocarbons 323-6460 Dateof Report: 04/02/92 Lab #: 2576-6 Sample Description: CALIF. SHEET METAL: 3 25' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method o Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil Date Sample Collected: 03/20/92 Date Sample Received ® Lab: 03/23/92 Date Analysis Completed: 04/01/92 '~ Minimum Analysis Reporting Reporting Constituents Results Units Level Benzene 400. mg/kg' 100. Toluene 3400. mg/kg 100. Ethyl Benzene 800. ~' mg/kg 100. ooXylene 1500. mg/kg 100. m & p-Xylene 2700. mg/kg 100. Total Petroleum · Hydrocarbons (gas) 30000. mg/kg 20000. High reported PQL due to high concentrations of target analytes in sample. California D.O.H.S. Cert. ~1186 Department Supervisor 4100,~las ~--'~. · Baker~elcl. OA 93308 · ~ 3~:~7-,491 I · FAX (13~--') 32.?-1918 I I I I I I I I Petroleum Hydrocarbons WILSON & ASSOCIATES 2217 "E" STREET BA/<ERSFIELD, CA 93301 Attn.: JOHN R. WILSON 323-6460 Date of Report: 04/07/92 Lab ~: 2576-7 Sample Description: CALIF. SHEET METAL: 4 30' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil Date Sample Collected: 03/20/92 Constituents Date Sample Received ~ Lab: '03/23/92 Date Analysis Completed: 04/06/92 Analysis Reporting Results Units Minimum Reporting Level Benzene None Detected mg/kg 0.005 Toluene None Detected mg/kg 0.005 Ethyl Benzene None Detected mg/kg 0.005 o-Xylene None Detected ~- mg/kg 0.005 m & p-Xylene None Detected mg/kg 0.005 Total Petroleum Hydrocarbons (gas) None Detected .. mg/kg 0.1 California D.O.H.S. Cert. $1186 Department Supervisor 4100A~as C~. · Bake~eld, CA 93308 · (805) 327~491 I · FAX (805) 327-1918 IL~BOF~TOF~IES I I I I Petroleum Hydrocarbons WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON 323-6460 Date of Report: 04/0i/92 Lab ~: 2576-8 Sample Description: CALIF. SHEET METAL: 4 40' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil I I I I I Date Sample Date Sample Date Analysis Collected: Received ~ Lab: Completed: 03/20/92 03/23/92 03/31/92 Analysis Reporting Constituents Results Units Benzene None Detected mg/kg Toluene None Detected mg/kg Ethyl Benzene None Detected ~- mg/kg o-Xylene None Detected mg/kg m & p-Xylene None Detected mg/kg Total Petroleum Hydrocarbons (gas) None Detected mg/kg Minimum Reporting Level 0.005 0.005 0.005' 0.005 0.005 I I I .California D.O.H.S. Cert. ~1186 Department Supervisor 4100Atlas C~. · Bakersfield, CA 93308 - (82b--) 32";-4911 · FAX [BOb-----] ~-1918 I I I I Petroleum Hydrocarbons WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON 323-6460 Date of Report: 04/07/92 Lab %: 2576-11 Sample Description: CALIF. SHEET METAL: 5 - 15' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. I I I I I I Sample Matrix: Soil Date Sample Collected: 03/20/92 Date Sample Received $ Lab: 03/23/92 Date Analysis Completed: 04/06/92 · :' Minimum , Analysis Reporting Reporting Constituents Results Units Level Benzene 0.011 mg/kg 0.005 Toluene 0.017 mg/kg 0.005 Ethyl Benzene None Detected ~' mg/kg 0.005 o-Xylene None Detected mg/kg 0.005 m & p-Xylene None Detected mg/kg 0.005 Total Petroleum " Hydrocarbons (gas) None Detected mg/kg .California D.O.H.S. Cert. ~1186 i Department Supervisor 4100 At~as OC. · Baker~-fielcl. CA Ek~3C~ · (BOb--) 3~7~4911 · FAX (8Cb--) 3~7-1 91 8 LABORATOFIIES I I I I I I Petroleum Hydrocarbons wILSON &A~SOCIATES Date of 2217 "E" STREET Report: 04/02/92 BAKERSFIELD, CA 93301 Lab ~: 2576-10 'Attn.: JOHN R. WILSON 323-6460 Sample Description: CALIF. SHEET METAL: 5 40' (SOIL) 03-2'0-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil Date Sample Collected: 03/20/92 Date Sample Received ~ Lab: 03/23/92 Date Analysis Completed: 04/01/92 ' Minimum Analysis Reporting Reporting Constituents Results Units Level Benzene 42. mg/kg 5. Toluene 540. mg/kg 5. Ethyl Benzene 160. "- mg/kg 5. o-Xylene 300. mg/kg 5. m & p-Xylene 510. mg/kg 5. Total Petroleum Hydrocarbons (gas) 7000. mg/kg 2000. High reported PQL due to high concentrations of target analytes in sample. .California D.O.H.S. Cert. #1186 Department Supervisor '4100At:las Ct. · Bakersfield. CA 933C~ · (1512b-) 3~911 - FAX (EIC~ 32.7-1918 I I I I I I I I I I I I I I I I I Petroleum Hydrocarbons WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON 323-6460 Date of Report: 04/02/92 Lab ~: 2576-12 Sample Description: CALIF. SHEET METAL: 6 - 20' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil Date Sample Date Sample ~ Collected: Received ® Lab: 03/20/92 03/23/92 Constituents Benzene Toluene Ethyl Benzene o-Xylene m & p-Xylene Total Petroleum Hydrocarbons (gas) Analysis Results None Detected None Detected None Detected None Detected None Detected None Detected Date Analysis Completed: 04/01/92 Reporting Units mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg Minimum Reporting Level. 0.005 0.005 0.005 0.005 0.005 California D.O.H.S. Cert. ~1186 Department Supervisor' 4100Atlas 0'~c. · Baker~eld. GA 93309 · (8(3b-) 32-/-4911 · I=AX (Ei0~ ~--~7-1918 I I I I I I I I I I I I I I I WILSON & ASSOCIATES Date Reported: 04/03/92 Page 1 2217 "E" STREET Date Received: 03/23/92 BAKERSFIELD, CA 93301 Laboratory No.: 2576-12 Attn.: JOHN R. WILSON 323-6460 Sample Description: CA~IF. SHEET METAL: 6 - 20' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON TOTAL CONTAMINANTS (Title 22,'Article 11, California Code of Regulations) · .. RegUlatory. Criteria Method STLC TTLC Constituents SamDle Results Units P.Q.L. Method mq/L 'mq/kq Lead 3.6 mg/kg 3.5 SW-6010 5.0 1000. Comment: Ail constituents reported above are in mg/kg (unless otherwise stated) on an as received (wet) sample basis. Results reported represent totals (TTLC) as sample subjected to appropriate techniques to determine total levels. P.Q.L. = Practical Quantitation Limit (refers to the least amount of analyte detectable based on sample size used and analytical technique employed. N.D. = None Detected (Constituent, if present, would be less than the method P.Q.L.) . STLC = Soluble Threshold Limit Concentration TTLC = Total Threshold Limit Concentration REFERENCES: SW = "Test Methods for Evaluating Solid Wastes Physical/Chemical Methods", SW 846, September, 1986. Department Supervisor 41CIDAclas Oc. · Bakersfield, CA ~ · (B(DS)327~4911 · FAX(80~ 3~7-191B I I I I I I I I I I I I I I I I I Petroleum Hydrocarbons WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON 323-6460 Date of Report: 04/07/92 Lab ~: 2576-13 Sample Description: CALIF. SHEET METAL: 6 - 30' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil Date Sample Collected: 03/20/92 Date Sample Received @ Lab: 03/23/92 Date Analysis Completed: 04/06/92 Analysis Reporting Constituents Results Units Benzene None Detected mg/kg Toluene None Detected mg/kg Ethyl Benzene None Detected ~' mg/kg o-Xylene None Detected mg/kg m & p-Xylene None Detected mg/kg Total Petroleum Hydrocarbons (gas) None Detected mg/kg Minimum Reporting Level 0.005: 0.005 0.005 0.005 0.005 California D.O.H.S. Cert. ~1186 Department Supervis6r 4100Arias Ct. · Bakersfield. CA 93308 · l]5Eb--J 327-4911 · FAX (EiC~ 327-1918 ! ! petroleUm HYdr°carb°ns Date of 04/02/92 Report: Lab ~: 2576°10 $OCTATES .-' SON & AS 0800 TO 1700 ~. ,,~, STREET e~ple pescr{ptf°n: ~ECTED BY d.~- Modified EPA 8°1b' ~~ESTI~ET~OD: ~nd~dual constituents by EPA MethOd 5030/B020' ! ! Date SamPle Collected: 03/20/92 Soil ~e~e~e ~t~¥1 ~e~e~e m & P'XYlene Date sample ~ece~ed ® Lab: 03/23/92 Date Analysis completed: 04/01/92 KepOrtfng AnalysfS 540. mg/~g 160. 300. 510- mg/~g ~000- l%eport~ng 5. 5. 5. 5. 2000- ! ! ,I ! ! californfa D.O.H.S- Cert. High reported pQh due to high conCentrationS of target analyteS in s~mple- I I I I I I I I I I ! Petroleum Hydrocarbons WILSON & ASSOCIATES 2217 "E" STREET B~ERSFIELD, ~ 93301 Attn.: JOHN R. WILSON 323-6460 Date of Report: 04/02/92 Lab #: 2576-10 Sample Description: CALIF. SHEET METAL: 5 40' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil Date Sample Collected: 03/20/92 Constituents Date Sample Received ® Lab: 03/23/92 Date Analysis Completed: 04/01192 Minimum Analysis Reporting Reporting Results Units Level Benzene 42. mg/kg 5. Toluene 540. mg/kg 5. Ethyl Benzene 160. ~- mg/kg 5. o-Xylene 300. mg/kg 5. m & p-Xylene 510. mg/kg 5. Total Petroleum Hydrocarbons (gas) 7000. mg/kg 2000. High reported PQL due to high concentrations of target analytes in sample. California D.O.H.S. Cert. ~1186 I I I Department Supervisor 41 C0 ACa$ C~'- · Bakers'fielcl. CA 93308 · (BOb-) 327-4911 · FAX (E)(]~ ~:)'7-1 91 I:1 I I I I Petroleum Hydrocarbons WILSON & ASSOCIATES 2217 "E" STREET BI~KERSFIELD, CA 93301 Attn.: JOHN R. WILSON 323-6460 Date of Report: 04/02/92 Lab ~: 2576-12 Sample Description: CALIF. SHEET METAL: 6 - 20' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON TEST METHOD: TPH by D.0.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil I I I I I Date Sample Collected: 03/20/92 Constituents Benzene Toluene Ethyl Benzene o-Xylene m & p~Xylene Total Petroleum Hydrocarbons (gas) Date Sample Received ® Lab: 03/23/92 Analysis Results None Detected None Detected None Detected None Detected None Detected None Detected Date Analysis Completed: 04/01/92 Reporting Units mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg Minimum Reporting Level 0.005 0.005 0.005 0.005 0.005 I I California D.O.H.S. Cert. ~1186 Department Supervi sot Ct:. · E~aker-s'6elcl. ~ ~:~3~)~ · [15)C~5] ~c~'7-~}1 I · I='~,G,X (1~ ~]~'7-191 8 WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON Sample Description: Date Reported: 04/03/92 Page Date Received: 03/23/92 Laboratory No.: 2576-12 323-6460 CAliF. SHEET METAL: 6 - 20' (SOIL).03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON '1 TOTAL CONT/LMI NA/TTS (Title 22, Article 11, California Code of Regulations) Constituents Lead SamDle Results Units 3.6 mg/kg Regulatory__ Criteria Method STLC TTLC P.Q.L. Method mq/L mq/kq 3.5 SWo6010 5.0 1000. I I I I Comment: Ail constituents reported above are in mg/kg (unless otherwise stated) on an as received (wet) sample basis. Results reported represent totals (TTLC) as sample subjected to appropriate techniques to determine total levels. P.Q.L. = Practical Quantitation Limit (refers to the least amount of analyte detectable based'on sample size used and analytical technique employed. N.D. = None Detected (Constituent, if present, would be less than the method P.Q.L.) . STLC = Soluble Threshold Limit Concentration TTLC = Total Threshold Limit Concentration REFERENCES: SW = "Test Methods for Evaluating Solid Wastes Physical/Chemical Methods", SW 846, September, 1986. Department Supervisor 41 00~t~as ~c. · I~aker~-field, OA ~ · (190~ 32~491 I · F:~X (81~ ~:~7-1 91E~ I I I WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON Petroleum Hydrocarbons 323-6460 Date of Report: 04/07/92 Lab #: 2576-13 Sample Description: CALIF. SHEET METAL: 6 - 30' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil I I Date Sample Collected: 03/20/92 Constituents Date Sample Received ® Lab: 03/23/92 Date Analysis Completed: 04/06/92 Minimum Analysis Reporting Reporting Results Units Level I I I Benzene None Detected mg/kg 0.005 Toluene None Detected mg/kg 0.005 Ethyl Benzene None Detected ~' mg/kg 0.005 o-Xylene None Detected mg/kg 0.005 m & p-Xylene None Detected mg/kg 0.005 Total Petroleum Hydrocarbons (gas) None Detected mg/kg 1. I I I California D.O.H.S. Cert..~1186 Department Supervisor I I I I Petroleum Hydrocarbons WILSON &ASSOCIATES .... 2217."E!'.STREET ..... BD,KERSFIELD, CA 93301. ' Attn.: JOHN R. WILSON 323-6460 Date of Report: 04/02/92 Lab ~: 2576-14 Sample Description: CALIF. SHEET METAL: 6 - 40' (SOIL) 03-20-92 FROM 0800 TO 1700 -- COLLECTED BY J.R. WILSON I I TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil Date Sample Collected: 03/20/92 Date Sample Received @ Lab: 03/23/92 Date Analysis Completed: 04/0.1/92 Constituents Minimum Analysis Reporting Reporting Results Units Level I I I Benzene None Detected mg/kg 0.005 Toluene 0.008 mg/kg 0.005 Ethyl Benzene None Detected ~' mg/kg 0.005 o-Xylene None Detected mg/kg 0.005 m & p-Xylene 0.010 mg/kg 0.005 Total Petroleum Hydrocarbons (gas) None Detected mg/kg 1. California D.O.H.S. Cert. ~1186 Department Supervisor 41 (2]0 A~a$ Ct.. · EBakef~fieI,H. C~ ~B3~E) - ~ 32'7-491 I · FAX (8Ob--'] 3~:r7-1918 I I I I WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON 323-6460 Date Reported: Date Received: 03/23/92 Laboratory No.: 2576-14 Page Sample Description: --CAL'IF. SHEET METAL: 6 40' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON TOTAL CONTAMIN~LNTS (Title 22, Article 11, California Code of Regulations) I I Constituents SamDle Results Lead 8.5 Method Units P.Q.L. Method mg/kg 3.5 SW-6010 Regulatory Criteria STLC TTLC mq/L mq/kq 5.0 1000. I I I I I I Comment: Ail constituents reported above are in mg/kg (unless otherwise stated) on an as received (wet) sample basis. Results reported represent totals (TTLC) as sample subjected to appropriate techniques to determine total levels. P.Q.L. = Practical Quantitation Limit (refers to the least amount of analyte detectable based on sample size used and analytical technique employed. N.D. = None Detected (Constituent, if ~resent, would be less than the method P.Q.L.) . STLC = Soluble Threshold Limit Concentration TTLC = Total Threshold Limit Concentration REFERENCES: SW = "Test Methods for Evaluating Solid Wastes Physical/Chemical Methods", SW 846, September, 1986. Department Supervisor 4100ACas ~ '- Bakersfield. C_,A 93308 · (805-] 327-491 I - FAX (8Ob---) 3~'7-191B ~:.~ -- CHAIN OF CUSTODY 4100 Atlas Court BORATORIES. i . ,,, Bakersfield, California 93308 ' ~o, ~ _,,__, ,, , ~:~ ..~.~~ o i~ ~ . _ .-- _~ '~ b~ ._ ~ o .... .. ~. m ~. . , t ~ ~ ~ ~ ~ .. ~ ~ _~/~ ~ ~ ~ ~ Matrix (S) Soil (SL) Sludge ~ (W) Water (Other) E E E E E I · -~ - ¢~ ~ ' Sampl&s rec. col~ I ~ Custody Seals i ~ ~ ~esults ~eeOeO m ~ Dato & lime I ~ ~, _ _ ~= ~ ~ Number and ~' ~' ~ a ~'~ ~" ~ Container Type I ; I I I I I I I I I I I I I i I I I I Petroleum Hydrocarbons WILSON & ASSOCIATES Date.of 2217 "E" STREET Report: 04/02/92 BAKERSFIELD, CA 93301 Lab ~: 2576-14. Attn.: JOHN R. WILSON 323-6460 Sample Description: CALIF. SHEET METAL: 6 40' (SOIL) 03-20-92 FROM 0800 TO 1700 ~- COLLECTED BY J.R. WILSON TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix:' Soil Date Sample Collected: 03/20/92 Date Sample Received ® Lab: 03/23/92 Date Analysis Completed: 04/0~/92 Minimum Analysis Reporting Reporting Constituents Results Units Level Benzene None Detected mg/kg 0.005 Toluene 0.008 mg/kg 0.005 Ethyl Benzene None Detected mg/k9 0.005 o-Xylene None Detected mg/kg 0.005 m & p-Xylene 0.010 mg/k~ 0.005 Total Petroleum Hydrocarbons (gas) None Detected mg/k~ 1. California D.O.H.S. Cert. ~1186 Department Supervisor 4100 Atlas Cc. · Eiaker~eld. CA ~ · (8Cb-) 3L::~7-,491 I · FAX (EI0~ 3~7-1E)I E~ I I I I I I I I I I I I I I I I I I.~BORATOI~IE-~ WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON Date Reported: Date Received: 03/23/92 Laboratory No.: 2576-14 page 1 323-6460 ' Sample Description: CALIF. SHEET METAL: 6 40' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON TOTAL CONTAMINANTS (Title 22, Amticle 11, California Code of Regulations) Regulatory Criteria Method STLC TTLC Constituents Sample Results Units P.Q.L. Method mq/L mq/kq Lead 8.5 mt/kg 3.5 SW-6010 5.0 1000. Comment: All constituents reported above are in mt/kg (unless otherwise stated) on an as received (wet) sample basis. Results reported represent totals (TTLC) as sample subjected to appropriate techniques to determine total levels. P.Q.L. = Practical Quantitation Limi~ (refers to the least amount of analyte detectable based on sample size used and analytical technique employed. N.D. = None Detected (Constituent, if present, would be less than the method P.Q.L.) . STLC = Soluble Threshold Limit Concentration TTLC = Total Threshold Limit Concentration REFERENCES: SW = "Test Methods for Evaluating Solid Wastes Physical/Chemical Methods", SW 846, Septen%ber, 1986. Department Supervisor 4100 At~as ~c. · Baker~-field, OA ~3308 · (E)05) 32~491 I · FAX (BOb-) 32~-1 ~31 E3 LABORATORIES, Inc. 4100 Atlas Court Bakersfield, California 93308 CHAIN OF CUSTODY O O ~ r-' "o > o3 !1 ..... ' I -' m B 0 I ~__~ ~~ ~ ~~~ ~ I Matrix {S)(w) SOilwater (SL)(other)Sludge ~- ~. ~- -. ~ ~ ~ ~ ~ ~ -~ -<. C~ -C~ ~ ~-~- ~ Samples rec. cold (yin) . I 4 ~. - . . Results Needed by: ' = Date & Time - , ~ Container Type L ~__~~ABORATORIES. Inc. 4~ o0 Atlas Cou, · Bakersfield, California 93308 CHAIN OF CUSTODY n ~ ~ N ffi ~ Matrix (S) Soil (SL) Sludge (W) Water (Other) -< Samples rec. cold (y/n) ~ ~ Custodg Seals I u ~ato & Time BORATORIES. Inc. Bakersfield, California 93308 CHAIN OF CUSTODY ~ " ' ' , ~ , ~ ~ ~ ~ , ~ ~ o I [ ~ ~ ..~~~~~ ~ Matrix (S) Soil (SL) Sludge ~ (W) Water (Other). ......~ ~"~ ~ ~ .... Ii II ...... ~ ~ ~ Samples rec. cold (y/n) II ~ Custody Seals (y/n) ~l ~ Results Needed by: ~ ~ Date & Time 5' ~ 5' ~' ~' 5' ~~ Container lype '1 I I I ,I I I I I I I I I I I I I I I EXHIBIT 2 'I ,! ,! SUMMARY OF LABORATORY ANALYTZCA/~ DAT~. (values irr, mi!ligram~ pek kil .ogram) · Gasoiiae ~enzene Toluene- S000, .... 45' 60' 75' 80' ; 2 2 30' 3000' 13000' ND ~D MD ~0 400. ND !300.* ~D ND 0.0~'4 0.!6 LS00..~ 300 ND 0.049 340.* 250 .,"' Z/00. * ND ND 0.014 0.062 2000.~ 39. } 30000~ 400 *" .. 3400* 800.~ 2700.* 3 ~D ~D 4- 40' ~O ND ,, ND ~O ~O ~D ~.017 ND MD ~.5' 40' 5 20' 6 30' 6 40' M_W~L 7000* 0.0i! ND ND . ...': ND i000 ~O L. 0.005 540.~ ND ND 0.008 0.005 ~D ND ND 0.005 50.0 510.* ~D ~D 0.0!0 0.005 50.0 3,5 8.5 !O00 ND: None Detected at or above minimum reporting level. NA: .Not Applicable'.' -- MI~L: Minimum Reporting Level. *: exceeds current recommended guidelines AL: .Regional Water Quality Control Board recommended guidelines for contaminants in soil. The recommended~guidelines.were calculated using the LUFT methodology by multiplying the most stringent current federal or state water quality standards by a factor of !,000 to account for attenuation due to soil composition and distance from groundwater. EXHIBIT 3 I I I I I I I I I I I I I I I ~etroleum Hydrocarbons I10. $ P, 2 WILSON &AS.SOCIAT~$ '- 2217 "~" ETREET ~AK~RSFI=LD, ~A 93301 A~tn.: JOH~T R. WIL~O~ 323-6460 Re~or~: 03/30/92 Sample Description: ~ROJECT: 601 HUREKA: 1-5' (SOIL) 03'-19-92 FROM 0800 HRS TO 1530 HRS CO~LECT=D ~Y J,R. WILSON T=ST M~THOD~ TPH by D.O.H.S. / L.U.F.T. ~anual Method - Modified ~?A 0015 ~ndividual conot£tuen~ by EPA Me=hod 5030/0020. Date ga~ple ~ollected~ Date Sample Received ~ Lab: Da:e Analys~e Comple:e~: 0~/=?/~ Minimum. gGn~o~G None Deteete~ m~/k~ g0. ToZuene 310. mg/kg 20. ~thyl ~en~ene SO. ~- m~/k~ 20. o-XyZene 3~0. mg/kg 20. m & p-Xy~ene ~00. mg/~g ~0. Tot~l Pet:oleu~ Hydrocarbons (gas) ~000. mg/kg 5000, NOte: · ' High reported PQL due to high conccntrations oE target an~l¥~es in sample. Cali£o:nia D.O.H.S. Car:, #118~ & 'd STREET ~S~.L~, c~ 9~o~ JOH~ R. W~bSON 325.6460 gamplo Desc~iDtion: PROJECT: 601 EUREKA: 1-15' (SOIL) 03-~9-9= PROM 0~00 ~n$ TO i$30 HnS COLL~C"I~=D S~ J.R. WIL30N TEST METHOD: TPH by D.O.~.S. / L.U.F.T, Manual Method - Modified ~PA 8019 Individual COnStltuenca by ~PA M¢cho~ 5030/~020. I I I I I Oa~e Sample o~/~/9~ Toluene E~hyl ~en=ene o-Xylene m & 9-Xyl~ne To=al PO~rOleu~ Comple~ed~ 0~/30/~2 ~intmum _. Rgsul~s , ~nJ. tS _ Level__ None Detected m~.tk~ 100. 3~0. m~/k~ ~0. ~90, mg/k~ 10. 230. ~' mg/k~ ~0, 6000. mg/kg 2000. ! I I Note: High reported PQL duo to high concentrations o£ .target enalyces in ~am~e, Californi& D.O.H.S. Cert. ~1156 ',i 9 'd FROtl I I WILBON & ASSOCIATES 3217 "~" STREET ~U~JO~R~FIBLD, CA 9330X A~tn.: J0iIN R. WILSON Pe e roleum Hydrocar~.ons 323-6460 L~b ~: ~517-6 P. 4 I I, I I I I I I' I I I I I PROJECT= 601 EUREKA: 1-20' (SOIL) 0]-19-92 FROM 0800 HRS TO 1S30 HRS COULECT~D BY J,R, WILSON T~$T FAETHOD~ T~H b~ D.O.H.S. / L.U.F.T. ~anual Method - Modifie~ EPA g01~ Individuml constituents by EPA ~=hcd ~030/8020. Collected= OSlxgI~ Date Sample Received ® Lab: Completed: Results n~. Level Benzene None Detec=ed Toluene 86. me~kg 2. ~thT1 Benzene ~1, m~/kg 2. u-Xylene e~, ~:- m~/k~ 2. m & p-Xylene 350. me~kg Total ~etroleum Ilydrocarbone (gas) 3100. me/kg 500, Note: High reporte~ PQL duo ~:o high co~centratlon~ o£ ~arge~ alnalytos in smnp%e, Call£o~nia D,O,H,S, Cert. ~1106 Supervisor G eT,eT z66~-~ 't. ~alu~OO~U ~ t~tn I i I I I I I I I I I I I I ! I I I WXL~ON & ASSOCIATES 2217 "~" STRERT '" ~AKERS~I~ZD, CA 93301 A=Cm.: 'JOHN R.'WZL~ON ~23.6~60 Lab ~amDle DescriDtion! ;ROJECT: 68l RU~RKA= 1o4~~ (SOIL} 03-19-92 FRQM 0~00 HR~ TO 1530 MRS COLLECTED ~Y J.K. WILSON T~S?.MET~OD: ?PN by D.O.R.$. / L.U.F.T, M~nual M. thcd - Modified EPA 801~ I~d~v£dual constituents b%' ~mA Me=h~I 5030/80=0, Da~e Sample Collected: o3/=~/~ Tolumne ~60. mg/kg ~. o-Xylene 140. ~:- m~/k~ ~. m & p-Xylenm 250. m~/k~ $, Total Petroleum Mydrocarbone (~as) 3000, m~/k~ 1000. Not e: H{~h reported PQL due to high co:tcentr~t~on~ o~ target ~n&lytes in s~ple. California D.O.M.S. Ce&t. ~1186 I I I ,I I I !1 I I ,I I i I I I WILSON & ASSOCIATE~ DeC0 O5 2217 "E" STREET -' Report: 03/31/92 BAKERSFIELD, C3L 93301 Lab ~ 2517.12 At~n.~ JOMN R. WILSON 323-6460 Sample Description: PROJECT: 601 ~U~EKA: 1-60' (SOIL) 03-19-92 FROM 0800 MRS TO 1530 }[RS COLLECTED BY J.R. WILSON TEST M£T~OD: TPH by D.O.~.$. / L.U.F.T. Manu&l Me=~od - ~odlfle~ =PA 801~ Individual constituentm by ~PA ~eLhod 5030/8020. Sampi~ Matrix: Soil Date 8ample Co~Iected: 0]/~s/s~ Da~e Received ~ Lab~ Completed: o3/3o/9~ Hlnimum Analy~ is Report/ng Report lng ____Reeulte Unita. ~ Benzene ~10. mO/kg 30. Toluene ~300. mo/kg 30. ~chyl Benzene 300. °'Xylene 4~0. m & p-X¥1ene 2100. mg/k~ 20. Tota~ Petroleum ~yd~ocaxbone (gas) ~3000. m~/k~ S000. Note: ... lHgh ~epcrCed PQL due to high concentrations 6~'"ta~get anatyte~ in sa,npte. Califo=n£a D.O.H.$. Cert. #1185 :f ~,c :et Z~:'~ 't, $~.l. u13ossu · Nos'~Z~ uo~.4 I i I '1 I '1 I I I I I I !1 I I I I .Pe~coleum Hyd=ocazbons WII, SON& ASSOCIATES 2217 "B" STREET -' BAKERS F.T.ELD, CA 93301 Attn... JOHN R. WILSON 39-3 - 6~t 60 Date of Lab #.. 2517-15 Samglv DvBcri~cion: PRCXTECT: 601 EUREKA: 1-?$' (SOIL) 03-19-92 FR0~ 0800 H~$ TO 1530 H~8 COLLeCTeD ~y J.R, WIL$O~ T~ST24ET~OD: TP~ k~ D.O.M.S. / L.~.F.T. ~a~%ual Method - Modi£1ed E~A 80~ Individual ccn~tltu~nCs by ~A Hochod $030/0020. Dace ~am~le Collected: 0~/19/92 Toluene ~ & p-Xyleoe Total Petroleum ~¥dro~arhon~ (gae) Date Sample Receivad ~ Lab: 03/19/9: Da~e Analyeis Complete~; Analysxs Reporting _ Results __ Unlu=~ No~e n~Cec~ed mg/kg Nona De~cted '- mg/k9 None De=ected m~/k~ None Detected ms/kg ~in£mum Reporting _.Level 0.005 0,005 0,005 0,005 0.005 California D.O.~.S. Cert. #1186 Depar%ment Supervieor 8! 'd WO~d I I I I x 04.0.~. 199'2. (~9:,$ II0. ~ P. 8 Pe=roleum ];¥droc~rbons w~LeoN & ASCOCIATSS BAJ(~RS~I~LD, CA 93301 A~=~,~ JO~ R. WILSON 323-6&~0 Report; 03/31/92 Sample Description: ~ROJECT: 601 EU~RKA: 1-80' (SOIL) 03-19-P2 FROM 0800 MRS COLLECTED BY J.R. WILSON T~ST METMOD: TPH by D.O.H.g. / L.U.F.T. Manual Me~hod - Modified EPA 8015 Individu&l ¢ons~i~uen=a by EPA Method S030/8020. Da~e Sampla 0~/~/9= o~/~/~ Anal¥.i~ ~ttl~ Comple~ed: Repor~tn~ __units . Reporting ~hyl Ben=ene o-Xylene m & p-xylane To~al ~et=oleum ~ydroca=b~n~ (gae) None D~teoted None Detected MU/kg 0.005 0'005 0.005 0,005 I I CalA£orn~a D,O,H.S. Cer:. #1186 Department Superv:eo~ ~::e~ ~66~'~ '~ S31~I3OSSU ~ NOS~Ifl ~0~ ~NOM I10. 5 I I I "~" STREET '.JOHN Dace o~ Report: 03/31/93 Lab #; 2517-17 5amgle Descrip=ioa: PROJECT: 601 ;UREKA~ 1-eS' (SOIL) 03-19-~ FROM 0800 HR$ TO 1530 HRS COLLECTED BY J,R. WILSON TBST METHOD: TPH by D.O.H.S, / L,U.P.T. Manu&l Method - Mod£flsd g~A 8015 Individual constituents by I I I ! I I Collected: Benzene Toluene, gthyl Benzene o-Xyl.n. m & 9-Xylene Tota~ ~ecroleum Dace Sample Received ~ Lab: Da~e Analyel~ Com. D!ecmd~ Analysis Reporting . ~e~ult~ Units . None Detected m~/kg 0,0~? mg/k~ None Detocted mg/k9 N~ne De~ected mg/k~ o.olt mg/kg' None Detected mg/kg _ Level ": ' 0'.'005 0.005 0,005 0.005 0.005 I ! I ! ,I California D,O,H.5, Cert, #llS~ WILSON & ASSOCIATES I 2217 "E" STREET BAKERSFIELD,' CA 93301 Attn.: JOHN R. WILSON Petroleum Hydrocarbons 323-6460 Date of Report: 04/06/92 Lab ~: 2576-1 Sample Description: CALIF. SHEET METAL: I 90' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. I Sample Matrix: Soil Date Sample Collected: 03120192 Constituents Date SamDle Received ® Lab: 03/23/92 Date Analysis Completed: 04/05/92 Analysis Reporting Results Units Minimum Reporting Level Benzene 0.084 mg/kg 0.005 Toluene 0.16 mg/kg 0.005 Ethyl Benzene 0.049 ~- mg/kg 0.005 o-Xylene 0.026 mg/kg 0.005 m & p-Xylene 0.062 mg/kg 0.005 Total Petroleum Hydrocarbons (gas) None Detected mg/kg 1. California D.O.H.S. Cert. ~1186 Department SuperviSor I I I I Petroleum Hydrocarbons WILSON & ASSOCIATES 2217 ."E" STREET BAKERSFIELD,'CA 93301 Attn.: JOHN R. WILSON 323-6460 Date of Report: 04/06/92 Lab ~: 2576-2 Sample Description: CALIF. SHEET METAL: 2 - 15' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil I I I I I Date Sample .Collected: '03/20/92 Constituents Benzene Toluene Ethyl Benzene o-Xylene m & p-Xylene Total Petroleum Hydrocarbons (gas) Date Sample Received ~ Lab: 03/23/92 Date Analysis Completed: 04/05/92 Minimum Analysis Reporting Reporting Results 'Units Level 1000. mg/kg 5. 1500. mg/kg 5. 340. ~' mg/kg 5. 480. mg/kg 5. 2000. mg/kg 5. 12000. mg/kg 1000. I I ! I High reported PQL due to high concentration of target analytes. California D.O.H.S. Cert. ~1186 Department Supervisor I I I I I I ! I I I I I I I I Petroleum Hydrocarbons WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON 323 -6460 Date of Report: 04/06/92 Lab ~: 2576-4 Sample Description: CALIF. SHEET METAL: 2 - 30' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil Date Sample Collected: 03/20/92 Constituents Date Sample Received ~ Lab: 03/23/92 Date Analysis Completed: 04/05/92 Analysis Reporting Results Units Benzene 0.2 mg/kg Toluene 1.2 mg/kg Ethyl Benzene 4.7 "' mg/kg o-Xylene 39. mg/kg m & p-Xylene 10. mg/kg Total Petroleum Hydrocarbons (gas) 400. mg/kg Minimum Reporting Level · 0.1 0.1 0.1 0.1 0.1 200. High reported PQL due to high concentrations of target analytes. California D.O.H.S. Cert. Department Supervisor 41 OD A~as CC. · Baker~fielO. CA 933(28 · ~ 3~'7-.491 I - }':AX [15)(D~ 3~'7-1918 I I I I ,I I I 't I WILSON & ASSOCIATES Date Reported: 04/03/92 Page 1 2217 "E" STREET Date Received: 03/23/92 BAKERSFIELD, CA 93301 Laboratory No.: 2576-4 Attn.: JOHN R. WILSON 323-6460 sa~ple'peScription: CALIF. SHEET METAL: 2 - 30' (SOIL)'03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON TOTAL CONTAi~INAI~TS (Title 22, Article 11, California Code of Regulations) Regulatory_. Criteria Method STLC TTLC Constituents S.amDle Results Units P.Q.L. Method , mq/L. mq/kq Lead 3.9 mg/kg 3.5 SW-6010 , 5.0 1000. Comment: Ail constituents reported above are in mg/kg (unless otherwise stated) on an as received (wet) sample basis. Results reported represent totals (TTLC) as sample subjected to appropriate techniques to determine total levels. P.Q.L. = Practical Quantitation Limit (refers to the least amount of analyte detectable based on sample size used and analytical technique employed. N.D. = None Detected (Constituent, if present, would be less than the method P.Q.L.). STLC = Soluble Threshold Limit Concentration TTLC = Total Threshold Limit Concentration REFERENCES: SW = "Test Methods for Evaluating Solid Wastes Physical/Chemical Methods", SW 846, September, 1986. Department Supervisor 41 CO ~C, as Ct.. - Bakersfield, C.~ ~ · (15)05"] ~:~/-4911 · F~.X ~ ~::::~7-1 ~!11~ ILJ~,J~ORATQFIIES , I I I Petroleum Hydrocarbons WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON 323-6460 Date of Report: 04/02/92 Lab ~: 2576-6 Sample Description: CALIF. SHEET METAL: 3 - 25' (SOIL) 03-20-92 FROM 0.800 TO 1700 COLLECTED BY J.R. WILSON ! I TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil I I I I I Date Sample Date Sample Collected: Received ® Lab: 03/20/92 03/23/92 Analysis Constituents Results Benzene 400. Toluene 3400. Ethyl Benzene 800. o-Xylene 1500. m & p-Xylene 2700. Total Petroleum Hydrocarbons (gas) 30000. Date Analysis Completed: 04/01/92 Minimum Reporting Reporting Units Level mg/kg 100. mg/kg 100. mg/kg 100. mg/kg 100. mg/kg 100. mg/kg 20000. I I High reported PQL due to high concentrations of target analytes in sample. California D.O.H.S. Cert. ~1186 Department Supervisor Petroleum Hydrocarbons I I I WILSON &ASSOCIATES 2217 "E" STREET BAKERSFIELD,.-CA 93301 Attn.:-'JOHN R. WILSON 323-6460 Date of Report: 04/07/92 Lab ~: 2576-7 Sample 'Description: CALIF. SHEET METAL: 4 30' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON TEST METHOD: TPH by D.O.'H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. I I I I I Sample Matrix: Soil Date Sample Collected: 03/20/92 Const{tuent~ Benzene Toluene Ethyl Benzene o-Xylene m & p-Xylene Total Petroleum Hydrocarbons (gas) Date Sample Received @ Lab: 03/23/92 Date Analysis Completed: 04/06/92 Minimum Analysis Reporting Reporting Results Units Level None Detected mg/kg 0.005 None Detected mg/kg 0.005 None Detected m~/kg 0.005 None Detected ~' mg/k9 0.005 None Detected mg/k~ 0.005 None Detected mg/kg 0.1 California D.O.H.S. Cert. ~1186 Depar~men~ Supervisor 41COAclas Ct.- · E]akersfie{d, CA 9332E) · [EE]~--J ~2~:r'7-,~91 I · FAX ~ ~--~7-1918 Petroleum Hydrocarbons I I WILSON & ASSOCIATES ~2!7.."E'3_.STREET B/LKERSFIELD, CA ~3'301 Attn.: JOHN R. WILSON 323-6460 Date of ~e~ort: 0.4/01/92 Lab ~: 2576-8 Sample Description: CALIF. SHEET METAL: 4 40' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON I I TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil I I I i I Date Sample Collected: 03/20/92 Constituents Benzene Toluene Ethyl Benzene o-Xylene m & p-Xylene Total Petroleum Hydrocarbons (gas) Date Sample Received ® Lab: 03/23/92 Analysis Results None Detected None Detected None Detected None Detected None Detected None Detected Date Analysis Completed: 03/31/92 Reporting Units mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg Minimum Reporting Level 0.005 0.005 0.005' 0.005 0.005 I I I California D.O.H.S. Cert. ~1186 Department Supervisor 41 O0 ~t~a$ Cc. · I~akersfielcl, ~ ~933~] · (15)0~ 3;::7-.491 I - ,=,~X (1~)[~---) ~---~7'-1 ~1 E] '1 I Petroleum Hydrocarbons I I WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON 323-6460 Date of Report: 04/07/92 Lab ~: 2576-11 Sample Description: CALIF. SHEET METAL: 5 - 15' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON I I TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil I I I I I Date Sample Collected: 03/20/92 Constituents Benzene Toluene Ethyl Benzene o-Xylene m & p-Xylene Total Petroleum Hydrocarbons (gas) Date Sample Received ® Lab: 03/23/92 Analysis Results 0.011 0.017 None Detected None Detected None Detected None Detected Date Analysis Completed: 04/06/92 Reporting Units mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg Minimum Reporting Level 0.00S 0.00S 0.00S 0.005 0.005 I I I California D.O.H.S. Cert. ~1186 Department Supervisor 4100,~t;~as ~'"=~. · Bakersfield. C-.A 93308 · (80b----~27-4911 · FAX 0~ ~L:rT-1918 EXHIBIT 4 I I I I I I I i I I I I I I I I I I I APPROXIMATE LOCATION TANK EXCAVATION ~ · ..q' / / '~ APpROxIMATE L/MITS OF CONTAMINATION. .I EXHIBIT 5 I I I I I I I I I I I I I I I I I I I I I I I I I I F[RE OE?,~RTMEN'r S. C. JOHNSON ~AKEPSF'~LO.. 9330: Ca. li'iornia Sheet Metal 4293 Country Club Drive Bakersfield, CA 93306 Dear Mr. McCauley: The site assessment report, received on September 23, 1992. for the California Sheet Mctel'facility located at 601 Eureka Street nas been reviewed. 'This re0ort., Comoieted by John R. Wilson~ and Associates, recommends additional testing be accomptis,hed in order to assess the full extent of the contamination plume. We concur! Furthermore, it is recommended that the hydrocarbons.in tine soil (as gasoline) be removed using vapor extraction. With the submittal of a satisfactory corrective action plan, meeting ail cf the requirements of Section 2725(c) Article 11, Title 23 CCR, it is anticipated tBat vapor extraction would be found an acceptable means of mitigation. The next step must be to complete the sampling necessary to define the full extent (both vertical and lateral) of the contamination. Th. ese results as well as a corrective action plan must then be submitted to this office.- The high concentrations of product in the soil indicate a good likelihood of plume migration. It is important that you proceed in a timely manner to minimize the risks to the environment, as wetl as, the overall economic aspects of the c eon-up. I I I I I Sincerely yours, REH/ed cc: Gary J. Leary GJL Environmental 4009 Fairvvood Street · Bakersfield, CA 93306-1310 EXHIBIT 6 I I I I I I I I I I I I I I i I I I I I I I I I I I I I I I I I I I INVITATION FOR BIDS Consulting engineers, geologists, and other professional firms experienced in the field of underground storage tank correc- tive action work are being invited to submit bids to conduct a Soil and Water Investigation (23 California Code of Regulations ["CCR"] § 2725) for John M. and Deanna J. McCauley ("Owners"). A~ Objective The objective of the work is to carry out a full Soil and Water Investigation, as defined in 23 CCR § 2722 (a)(2), at 601 Eureka Street, Bakersfield, California (the "site"). Initially, the work will involve implementation of the recom- mendations for further investigation set forth at page 9 of a written report of Preliminary Site Characterization of Gasoline Impacted Soil, dated September, 1992, which recommendations were endorsed by the City of Bakersfield on November 16, 1992. Background Owners own the site. Prior to Dece~er 17, 1991, the site contained one underground gasoline storage tank, with a capacity of approximately 550 gallons, which was used to refuel service trucks used in a business conducted byMr. McCauley known as California Sheet Metal. The site is currently under lease to the Kern, Inyo, and Mono Counties Sheet Metal Joint A~prenticeship and Training Trust for the operation of a part-time apprentice school. Owners retain the legal right of access to the site for the purpos- es of conducting'corrective action. A site map is attached hereto as Exhibit A. The site is situated within a developed urban and commercial area. Nearby properties are primarily commercial businesses along both sides of Eureka Street, and residential areas to the south. The overall site topography is essentially flat. Soil deposits in the area of the site include alluvial sedi- ments of the Kern River Formation, which dip to the southwest. The deposits are alluvium, consisting of poorly graded fan depos- its. Alluvium was encountered in the soil borings advanced during the Preliminary Site Investigation. The depth to the regional unconfined aquifer is approximately 200 feet below surface grade, and groundwater is reputed to flow to the south. No groundwater was encountered in any of the borings advanced during the Preliminary Site Investigation, and we do not anticipate that groundwater has been i~pacted by the re- lease. I I I I I I I I I I I I I I I I I I Page 2 The City of Bakersfield is the lead regulatory agency ("LRA"), and will continue in that role throughout the investiga- tion and cleanup unless the case is referred to the Regional Water Quality Control Board. On December 17, 1991, the tank was removed by Calpi, Inc., pursuant to a tank removal permit issued by the LRA. Pursuant to the LRA's requirements, two samples were taken from the tank excavation: one at a depth of two feet below the former center of the tank, and one at a depth of six feet below the former center of the tank. Laboratory analysis of the two soil samples showed elevated levels of benzene, toluene, ethylbenzene, xylene, isopropylbenzene, and TPH (Gasoline). The results are follows: 2 feet below center of tank: Benzene 44 ug/g Toluene 170 ug/g Ethylbenzene 19 ug/g p-Xylene 47 ug/g m,o-Xylene 53 ug/g Isopropylbenzene 7.6 ug/g TPH-G 810 ug/g 6 feet below center of tank: Benzene 98 ug/g Toluene 275 ug/g Ethylbenzene 23 ug/g p-Xylene 58 ug/g m,o-Xylene 66 ug/g Isopropylbenzene 5.8 ug/g TPH-G 1,000 ug/g On January 6, 1992, the LRA required that further assessment be done to define the vertical and horizontal extent of the contam- ination. A copy of the LR3~'s corrective action order (dated January 6, 1991, in error) is attached hereto as Exhibit B. A copy of the Underground Storage Tank Unauthorized Release (Leak)/Contamination Site Report is attached hereto as Exhibit C. A Preliminary Site Assessment was conducted by Wilson & Associates, Inc. ("Wilson"). Six exploratory soil borings were advanced to a maximum depth of 90 feet below surface grade, and 19 selected 'soil samples were analyzed for TPH-G, benzene, ethylbenzene, toluene, and xylenes. The results of laboratory analysis are summarized in Exhibit D; a site plan setting forth locations of the borings is attached hereto as Exhibit E. Soil I I ! I I I I ,I I I Page 3 cuttings produced by the borings are stored on the site temporari- ly in eight 55 gallon barrels. The report of Preliminary Site Assessment was submitted to the LRA in September, 1992. On the basis of the data obtained from the Preliminary Site Assessment, Wilson concluded that soil impacted with gasoline hydrocarbons and constituents at concentra- tions in excess of Regional Water Quality Control Board recommend- ed guidelines exist in the area directly beneath the former tank to a depth of 60 to 75 feet, and laterally approximately 35 feet. Wilson recommended that two additional borings be completed in order to assess the lateral extent of the contamination. One boring would be located southwest of Boring B-3 and another boring would be located northwest of Boring Bo5 (please refer to Exhibit E). A copy of the report is attached hereto as Exhibit F. On November 16, 1992, the LP~A concurred with Wilson's recom- mendations, and directed Mr. McCauley to complete the sampling necessary to define the full extent, both vertical and lateral, of the contamination, and to submit the results and a Corrective Action Plan to the LR3%. A copy of the LRA's letter is attached hereto as Exhibit G. C. Work to Be Performed The chosen consultant will be required to provide all manpow- er, equipment, supplies, and licenses or permits required to perform the following work. ~- All work performed by the consultant shall be performed in accordance with Applicable Requirements. As used in this Invita- tion for Bids, "Applicable Requirements" refer to California Health & Safety Code § 25299.37; the "Corrective Action Require- ments,'' Article 11, Chapter 16, Division 3, Title 23, of the California Code of Regulations; and all relevant statutes, ordi- nances, regulations, rules, plans, policies, requirements, and/or guidelines prescribed by the Legislature, the LRA, the State Water Resources Control Board, the Central Valley Regional Water Quality Control Board, or other relevant governmental authority. Task 1 Planning and Permits Within 15 days following notification of acceptance of bid: Conduct any additional site background investi- gation-which is necessary in order to obtain the information needed to carry out the field work and prepare the site background section of the report described in Task 5. I I I I I I I I I I I I I I I I I I Page Prepare a health and safety plan in accord_snce with Applicable Requirements. Co Prepare a workplan for the Soil and Water Investigation, which shall include an adequate description of the actions to be performed (including, without limitation, the prepara- tion of a Corrective Action Plan) and a sched- ule for their completion. Submit the health and safety plan and the workplan to the LR3~ for its review and approv- al. Task 2 Soil Boring and Sampling As Drill the soil borings that the consultant has determined are required for the Soil and Water Investigation (as stated in the consultant's bid and described in the workplan). B. Take soil samples according to the workplan. The performance of Task 2 shall commence within 15 days following the first to occur of (1) the LRA's approval of the workplan or (2) the expiration of 60 days following the submission of. the workplan to the LRA (23 CCR § 2722(e). Take 3 Interim Remedial Action Treat and/or dispose of any contaminated soil produced by drilling, including, without limitation, the existing cuttings. Conduct other interim remedial actions as and if needed. Task 4 Laboratory Analysis ao Deliver all soil samples to an analytical laboratory certified by the State of Califor- nia for hazardous materials work. The samples shall be handled according to appropriate "Chain of Custody" procedures. In addition, any duplicate samples, trip blanks, or other QA/QC measures which are prescribed by Applica- ble Requirements or are otherwise necessary in order to validate the results of laboratory I I I I I I i I I I I I ,I i I I I I analysis of the samples shall be obtained or followed. The samples shall be analyzed for Total Petroleum Hydrocarbons (Gasoline), BTX&E (benzene, toluene, xylene, and ethylbenzene), and any other substance or compound specified by the LRA in reviewing the workplan. Task 5 Report Preparation Prepare a technical report which documents the above activities and analyzes/discusses the data collected, including (without limitation) a Corrective Action Plan which meets the requirements of 23 CCR § 2725, and send four copies of the report to Mr. and Mrs. McCauley, in care of their attorneys, Byrum, Holland & Griffin, Post Office Box 2348, Bakersfield, California 93303-2348. The report shall include an executive summary of investigation activities and results, a tabulation of all soil and groundwater data, laboratory data sheets, and any recommendations for further work if the data warrants it. Be Meet with LRApersonnel at least once, if required, to discuss any report deficiencies. Consultant shall correct any report deficien- cies and submit a revised report to the LRA for review. D. Bidding Re_cuirements Prospective consultants must be agreeable to or meet the following specifications: The consultant shall have at least five years experience conducting underground storage tank corrective action work in California. o - The consultant shall eu~ploy qualified persons, subcontractors, and laboratories to perform the work described above, including licensed geologists and other technical professionals, as appropriate, and possess all necessary licenses to operate within the State of Cali- fornia and the City of.Bakersfield. A list of qualified persons, subcontractors, and labora- tories who will perform the work must accompa- ny any bid submitted. I I I I I I I I I I I :1 I I I I I I I Page 6 $ The consultant must carry out the described work in a timely, professional, safe, and legal manner and maintain necessary records and other safeguards to ensure that reported sample results are accurate. All work must be performed in a manner acceptable to the LRA, and with reasonable diligence. Consultant shall submit the Corrective Action Plan to the LRAwithin 60 days following the commencement of field work or by such earlier date as the LRA shall specify. The consultant must maintain general liability insurance in the amount of not less than $500,000, and professional errors and omis- sions liability insurance in the amount of not less than $500,000 for the life of the pro- ject. Owners shall not be responsible for the cost of any associated premiums. Proof of such insurance shall be furnished to Owners prior to the start of work· Work shall be performed in a manner which will not require the cessation of business at the site unless absolutely necessary or dictated by the L~A. Consultant shall provide a copy of the consultant's standard services agreement and schedule of charges with any bid submitted. The schedule of charges shall include (1) hourly rates for personnel classifications employed by consultant, (2) unit charges for common supplies and equipment used in correc- tive action work, and (3) multipliers used when charging any other direct expenses (e.g. subcontractors and laboratories). The consultant's bid shall be in writing and shall conform to the terms and conditions of this Invitation for Bids· The bid shall describe in reasonable detail the actions to be perfo~nnedby the'consultant and state the charges for performing those actions (includ- ing, without limitation, the two soil borings recommended by wilson, the health and safety plan, workplan, Corrective Action Plan, and any other technical reports). The bid shall I '1 I I I I '1 I I i ! I I I I ! Page 7 also state the per unit basis on which charges -will be made by the consultant for performing any additional actions which may become neces- sary in order to complete the Soil and Water Investigation. The consultant shall not perform any work which is not described in the consultant's written bid without the ~rior express authorization of Own- ers, which authorization must be in writing, except in the case of emergen- cy. $ Consultant understands that Owners reserve the right to reject any or all bids without notice or cause. Owners retain the right to solicit and accept additional bids as necessary in their judgment. All bids are due on or before January 5, 1993. Consultant understands that Owners intend to seek reimbursement for the subject work from the U~derground Storage Tank Cleanup Fund administered by the State Water Resources Control Board, and will agree to respond to any reasonable inquiry from that agency regard- ing any claim submitted by Owners. E. Invoices Consultant shall submit a detailed invoice to Owners for payment at the completion of the project. The invoice shall specify the actual costs incurred. The invoice for consulting services shall reference the specific subagreement and task for which the costs were incurred. In addition, the invoice should include when the services were performed, a breakdown for direct labor, 'indirect costs, travel, equipment, material, and supplies, and subcontract work. The invoice should be submitted in dupli- cate. F. Contents of BiG Responsive bids will include all of the following items: (1) a list of qualified persons, subcontractors, and laboratories who will perform the work, (2) the consultant's standard services agreement and schedule of charges, and (3) a completed, signed bid. A Site map i I I I I I I I I I Page 8 B C D E F G LRA's corrective action order Underground Storage Tank Unauthorized Release (Leak)/ Contamination Site Report Results of laboratory analyses Site plan Preliminary Site Assessment report LRA's supplemental order dated November 16, 1992 i! ~3 I EXHIBIT A I FIRE DEPARTMENT S. D. JOHNSON IFIRE CHIEF CI2 £ of BAKERSFIELD "WE CARE" January 6, 1991 2101 H STREET BAKERSFIELD, 93301 326-3911 I I John M. McCauley California Sheet Metal 4297 Country Club Drive Bakersfield, CA 93306 I ! RE: Laboratory results from preliminary site assessment conducted at the property located at 601 Eureka Street Bakersfield, CA. I I I I I I i Dear Mr. McCaule¥, Upon review of the recently submitted laboratory results from your facility, this office has determined that the extent of the contamination plume has not been adequately defined. This office requires (in accordance with chapter 6.7 of the California Health and Safety Code and chapter 16, Title 23 of the California Code of Regulations) that further assessment be done to define the vertical and horizonta~ extent of the contamination plume. Please submit a work plan for further assessment, to this office, with in 30 days from receipt of this letter. The work plan should follow guidelines found in: Appendix A - ReDortst Tri - Reqional Board Staff Recommendations for Preliminary Evaluation and Investiqation of Underqround Tank Sites; January 22, 1991. If you have any questions, please call me at (805) 326-3979. A. Dunwoo~ ardous Material Specialist Underground Tank Program EXHIBIT El I I I I I I I UNDERGROUND STORAGE TANK UNAUTHORIZED RELEASE (LEAK) / CONTAMINATION SITE REPORT ~ J. LERR~ (805) 872-1543 ~ ~E j ~NT~TPE~ON . -~~ {' ) ~. -. .. . . . '' . -. . :: .. . ;. '.' .-. ~~. . ~ ~ ~ ~ P~N P~ . P~NE ' ~(1) . ~ ~L~~ ~ u~ ~ · . . ....... . .. .., . .:.;:~.....:.: ...:.... .' ..:.... .... .... : .~ .- -.. . . ~D~~ '. . .: .'. :. .-.' ~~~O~(~~T~... .. - · "1 "".1 '" ol 01': ,I q ' ~" ~ f ~' ~~ ' ~' '~T~K ~, ~T~. - ~UR~O~ . . : ~(~ ~ U~,N~ ~ ~ILONLY ~ G~ATM ~ ~E~ ONE ~ VA~UM~~ ~ O~R(~ :, '..' I I I :1 I I I I I F-.XHIB!¥~ TABLE - 1 SUMMARY OF LABORATORY ANALYTICAL DATA (values in milligrams per kilogram) Ethyl- To=al Total SamDZe 0eoth Benezene . Xvienes Lead GasolLne Benzene Toluene 5' 6000* I ND.:'' 310.* · 50..~" I 600 * · i 30' 3!00' J ND 5. * 5:. 350.* 250." 3000* !60.* 75.* 13000* J I!0.*Q' !300.* 300.* 2100.* ND J ND ND ND ND ND I ND ~ .ND ND ND ){D 51D ,!. J' 0.047 ND 0.014 ND 0.16 0.049 0.062 !5' 30' 30' 12000.* J 1000.*~' 30000~ J 400-*~'~-. J ND ND ND., 7000* J 42.*~ 40' ND . ..." IND 15' 1500.* 1.2' 3400* ND ND 0.017 540 .* ND 40' 340.* 4.7 800.* ND ND 160 .* ND 20' 30' 2000.* 39. 2700 .* ND ~D 5i0.* ND 6 ND ND ND ND $ 40~ ~D ~B L. 0.008 ~D 0.010 8.5 ~_RL N/.~. !.0 J 0.0,.0,..5 0.005 0.005 0.005 2.5 AL N/A i000 1.0 50.0 50.0 1000 ND: None Detected at or above minimum reporting level. NA: .Not Applicable.' MRL: Minimum Reporting Level. *: exceeds current recommended guidelines AL: .Regional Water Quality Control Board recommended guidelines for contaminants in soil. The recommended guidelines.were calculated using the LUFT methodology by multiplying the most stringent current federal or state water quality standards by a factor of 1,000 to account for attenuation due to soil composition and distance from groundwater. EXHIBIT D ,I 1! SITE. PLAN J EXISTING ~ CONCRETE Ii Ii II APPROXIM/~TE LOCATION OF~ TANK EXCAVATION ~ I" I0' / / / ~~APPROXIMATE LIMITS // OF CONTAMINATION. ~ ~ILSON & ossor'IATE~ IVIL ENGINEEERING SUI::::IVEEYING m m m ! m i I ] .J I PRELIMINARY SITE CHARACTERIZATION OF GASOLINE IMPACTED SOIL CALIFORNIA SHEET METAL 601 EUREKA STREET BAKERSFIELD, CALIFORNIA PREPARED FOR: JOHN~McCAULEY PREPARED BY: JOHN R. WILSON AND ASSOCIATES, INC. I~ISTRATION EXPIRES 12-31-93 SEPTEMBER, 1992 221 ? 'E' STREET · BAKERSFIELD, CA 93301 (805) 323-6460 · FAX (805) 32:~4723 EXHIBIT F I I I I I I I ! 1 TABLE OF CONTENTS RESULTS OF PRELIMINARY SITE CHARACTERIZATION OF GASOLINE IMPACTED SOIL CALIFORNIA SHEET METAL 1.0 INTRODUCTION · · . 1 Descriptlon~ ' .. ........... 1.1 Site 1.2 Background .................... 2 2.0 METHODS OF INVESTIGATION ................ 3 2.1 Drilling and Soil Sampling ............. 3 2.2 Laboratory Analysis ................ 4 3.0 FINDINGS ....................- . . . 5 3.1 Geologic Conditions ....... .... 5 3.2 Subsurface Conditions ....... ' ........ 5 3.3 Hydrogeology .................... 5 3.4 Soil Vapor Monitoring ............... 6 3.5 Laboratory Analytical Results ........... 6 4.0 CONCLUSIONS ................. 7 4.1 Remedial e v ............... 8 5.0 RECOMMENDATIONS ..................... 9 6.0 CLOSURE ......................... 9 Exhibit A Exhibit B Exhibit C APPENDIX A APPENDIX B Typical Section A-A Site Plan Typical Section B-B Boring Logs Laboratory Reports and Chain-of-custody I I ! I i I :1 I I PRELIMINARY SITE CHARACTERIZATION CALIFORNIA SHEET METAL SEPTEMBER 1992 PAGE NO.1 1.0 INTRODUCTION This report presents the result of a preliminary site characterization performed by WILSON & ASSOCIATES, INC. (W&A) at the above referenced site. The purpose of the characterization was to assess the lateral and vertical extent of soil impacted by gasoline hydrocarbons associated with a former 550 gallon underground gasoline storage tank removed from the property on December 17, 1991 by CALPI, INC. of Bakersfield, California. A concentration of Total Purgeable Hydrocarbons (TPH) as gasoline was detected at 810 mg/kg, and 10,000 mg/kg at depths of two and six 'feet beneath the former tank. Toluene was detected at 170 mg/kg, and 275 mg/kg at depths of two and six feet beneath the tank. See attached laboratory results. The concentrations of TPH as gasoline and the gasoline constituent volatile aromatics detected in the samples from beneath the'tank~ are in excess of Regional Water Quality Control Board (RWQCB) recommended guidelines, and resulted in the Lead Implementing Agency (LIA) which is the City of Bakersfield Fire Department - Hazardous Materials Division. requesting that an initial site characterization consisting of soil borings and laboratory analysis of soil samples be performed to assess the vertical and lateral extent of gasoline impacted soil in the vicinity of the former underground gasoline storage tank. The fuel dispenser was located directly above the tank, and therefore no additional soil samples were required at this location. The scope of work for this project developed in conjunction with Mr. Joe Dunwoody of the City of Bakersfield Fire Department - Hazardous Materials Division. In addition, remedial action alternatives are presented. Work performed to date includes the following: Development of site health and safety, and technical work plans. Drilling and sampling of six exploratory soil borings to a maximum depth of 90 feet below surface grade. Laboratory analysis of nineteen selected soil samples for Total Purgeab!e Hydrocarbons as gasoline, and the gasoline constituent volatile aromatics. Preparation of this report presenting our conclusions, recommendations, and remedial alternatives for the site. results, action I I I I i I I '! PRELIMINARY SITE CHARACTERIZATION CALIFORNIA SHEET METAL SEPTEMBER 1992 PAGE NO.2 1.1 Site Description The subject site is located on the south side of Eureka Street in the City of Bakersfield, Kern County, California. The site was used as a commercial "Sheet Metal Facility". The underground fuel tank was used to provide fuel for the service trucks. The site is situated within a developed urban and commercial area. Nearby properties are primarily commercial businesses along both sides of Eureka Street, and residential areas to the south. The overall site topography is essentially flat. 1.2 Background Based on a review of analytical results, a 550 gallon underground gasoline storage tank, and dispenser located directly above the tank were removed under City of Bakersfield Permit Number BP0031 from the above referenced property. Reportedly, no soil was removed from the site during removal of the tanks. Soil samples were collected at depth of two and six feet from beneath the removed tanks. The samples from beneath the gasoline were analyzed for the presence of total purgeable hydrocarbons (TPH) s gasoline, and the gasoline constituent volatile aromatics (BTEX). Gasoline was detected-at 810 mg/kg, and 1,000 mg/kg at depths of two and six feet beneath the former tank. Benzene was detected in the two samples at 4.4~mg/kg and 98 mg/kg at depths of two and six feet. Toluene was detected at 170 mg/kg, and 275 mg/kg at depths of two and six feet beneath the tank. Ethyl benzene was detected at 19 mg/kg, and 170 mg/kg at depths of two and six feet beneath the tank. The concentration of TPH as gasoline and the gasoline constituent volatile aromatics detected in the soil samples from beneath the tank are in excess of Regional Water Quality Control Board (RWQCB) recommended guidelines, and resulted in the Lead Implementing Agency (LIA) which is the City of Bakersfield Fire Department - Hazardous Materials Division requesting that an initial site characterization consisting of soil borings and laboratory analysis of soil samples be performed to assess the vertical and lateral extent of gasoline impacted soil in the vicinity of the former underground gasoline storage tank. The fuel dispenser was located directly above the tank, and therefore no additional soil samples were required at this location. I I I ! ! ! ! I I I I ! ! ! !1 ! PRELIMINARY SITE CHARACTERIZATION CALIFORNIA SHEET METAL SEPTEMBER 1992 PAGE NO.3 Based on these analytical results WILSON & ASSOCIATES, INC. has been retained by John McCauley to perform a site characterization in the vicinity of the former gasoline tank. Below are the results of the site characterization. 2.0 METHODS OF INVESTIGATION 2.1 Drilling and Soil Sampling Prior to commencing field operations, a technical work plan was reviewed and approved by City of Bakersfield Fire Department - Hazardous Materials Division personnel. Underground Service Alert was notified 48 hours'in advance of the site activities. Drilling commenced on March 19, 1992 using a CME~ B-75 truck mounted drill rig, operated by Soils Engineering, Inc. of Bakersfield, California, and equipped with six 3/4-inch diameter hollow-stem augers. The augers were steam cleaned prior to use to minimize the possibility of cross-contamination. A total of six borings were drilled within this phase of soil Characterization. One soil boring, B-1 was drilled through the approximate "center" of the tank excavation to a depth of ninety feet. A second soil boring, B-2, was drilled on the south edge of the tank excavation to a depth of thirty feet. A third soils boring, B-3, was drilled southeast of the tank excavation to a depth of forty feet. The fourth soil boring B-4, was drilled southwest of the tank excavation to a depth of forty feet. Boring number five, B-5, was drilled northwest of the tank excavation to a depth of forty feet. The sixth boring, B-6, was drilled northeast of the tank excavation to a depth of forty feet. Soil samples were collected at 5-foot intervals in each of the borings using a split-spoon sampler (ASTM D 3550 with shoe similar to ASTM D 1586) equipped with three 6-inch by 2.5-inch diameter stainless steel sleeves for soil retention. The soil samples were obtained by driving the sampler with a 140-pound hammer dropping 30 inches in accordance with ASTM D 1586. ,I I ,! PRELIMINARY SITE CHARACTERIZATION CALIFORNIA SHEET METAL SEPTEMBER 1992 PAGE NO.4 The lowermost sleeve at each sample intervals was screened for total organic vapors with a photo-ionization detector (PID). Headspace vapor analysis was performed by first discarding a portion of the soil retained at one end of the sleeve to produce a headspace. The sleeve was then capped and the probe of the PID was inserted through a hole in the cap and into the headspace for analysis. The PID readings are recorded on the boring logs. The middle sample sleeve was immediately transferred to a glass jar, capped, security taped, labeled, and placed on ice for transportation to a California Department of Health Services (DOHS) -certified laboratory. Strict chain of custody procedures were utilized for all samples collected to ensure sample integrity and to document sample possession from the time of collection to the final destination. Ail sampling equipment was washed with TSP (tri-sodium phosphate) cleanser, and rinsed with tap water and de-ionized water prior to sampling, between sample intervals, and between borings to minimize the possibility of cross-contamination. The drill auger was steam cleaned between borings, also to minimize the possibility of cross-contamination. Contaminated drill cuttings and soil sample spoils were stored in D.O.T. approved 55-gallon drums, sealed, and left on-site pending appropriate disposal. After drilling, the borings were backfilled with a 2 sack cement, sand, and bentonite clay grout to seal the abandoned boreholes. 2.2 Laboratory Analysis Nineteen samples were selected for analysis based on: a) observations and greatest PID readings of odorous soil, b) observations and PID readings of the first encountered sampling locations containing apparently uncontaminated soils, which would serve to define the lateral and vertical extent of contamination, and c) requirements that the two lowermost samples of each boring which detects gasoline hydrocarbons be submitted for analysis. The nineteen samples were analyzed at BC Laboratories for benzene, toluene, ethyl benzene and total xylenes (BTEX) by the USEPA Test Method 8020, and total purgeable hydrocarbons (TPH) as gasoline by the DOHS LUFT Manual Method. I I I I i PRELIMINARY SITE CHARACTERIZATION CALIFORNIA SHEET METAL SEPTEMBER 1992 PAGE NO.5 3.0 RESULTS OF ENVIRONMENTAL ASSESS~NT 3.1 Sub-Soil Conditions Regional Geology: The site is located in the southern part of the Great Valley. The Great Valley is a north-south trending valley, approximately 400 miles long by 50 miles wide. Surface and groundwater in the San Joaquin Valley is derived predominantly from the Sierra Nevada mountain range to the east, and is transported by five major rivers, the southern most being the Kern River. The subject site is located approximately three miles south of the Kern 'River. Site Soils: Soil deposits in the study area include alluvial sediments of the Kern River Formation,.which dip to the southwest. The deposits are alluvium consisting of poorly graded fan deposits. The depth to the regional unconfined aquifer is approximately 200 feet below surface grade beneath the site with the direction of groundwater flow to the south (Kern County Water Agency, Improvement District No. 4, 1991 Report on Water Conditions, February, 1992). The nearest known occurrence of perched groundwater is 2 miles to the southwest at a depth of 20 feet in the abandoned Kern River channel to the ancient Kern Lake Bed (Kern County Water Agency, 1991 Water Supply Report, May, 1992). No perched groundwater is known to exist beneath the subject site. 3.2 Subsurface Conditions Subsurface material encountered during drilling included artificial fill in the former tank pit underlain by alluvium to the total depth of each boring. The artificial fill was encountered in the upper portion of boring B-1 from the surface to approximately 10 feet. The fill consisted of a medium brown, silty sand (SM). 3.3 Hydrogeology Groundwater was not encountered in any of the borings drilled during this project. The project to the regional unconfined aquifer is approximately 200 feet below, surface grade beneath the site with the direction of groundwater flow to the south (Kern County Water Agency, Improvement District No. 4, 1992 Report on Water Conditions, February, 1992). The nearest known of perched groundwater is 2 miles to the southwest at a depth of 20 feet in the abandoned Kern River channel to the ancient Kern Lake Bed (Kern ,I I I I I I I I ! PRELIMINARY SITE CHARACTERIZATION CALIFORNIA SHEET METAL SEPTEMBER 1992 PAGE NO.6 County Water Agency, 1991 Water Supply Report, May, 1992). No perched groundwater is known to exist beneath the subject site. 3.4 Soil Vapor Monitoring Soil samples collected during drilling were monitored with a photo-ionization detector (PID) to evaluate organic vapor concentrations. The PID was calibrated with an isobutylene standard of 100 per million (ppm) and contained an 11.8 electron volt (eV) lamp, capable of detecting benzene (9.25 eV). Boring ~Logs presents the PID readings as they were recorded in the field. 3.5 Laboratory Analytical Results Boring B-1 was advanced through the center of the former 550 gallon tank where (TPH) as gasoline were detected at 6,000 mg/kg at 5 feet and 15 feet, at 3,100 mg/kg at 30 feet, at 3,000 mg/kg at 45 feet and 18,000 mg/kg at 60 feet. TPH as gasoline was not detected at 75 feet, 80, 85 and 90 feet. TPH wad detected in Boring B-2 at 12,000 mg/kg at 15 feet and at 400 mg/kg at 30 feet. TPH as gasoline was detected in Boring B-3 at 30,000 mg/kg at 25 feet. TPH as gasoline was detected in Boring B-5 at 7,000 mg/kg at a depth of 40 feet. TPH as gasoline was not detected at 30 and 40 feet in B-4, at 15 feet in B-5 and at depths of 20, 30 and 40 feet in B-6. The gasoline constituent volatile aromatic benzene was detected in eight of the nineteen samples analyzed. Benzene was detected in; Boring B-1 at 5 mg/kg at 45 feet, 110 mg/kg at 60 feet and 0.084 mg/kg at 90 feet, Boring B-2 at 1,000 mg/kg at 15 feet and 0.2 mg/kg at 30 feet, Boring B-3 at 400 mg/kg at 30 feet, Boring B-5 at 0.011 mg/kg at 35 feet and 42 mg/kg at 40 feet. Benzene was not detected in B-1 at depths of 5, 15, 30, 75 80 and 85 feet, B-2 at depths of 30 feet, and 40 feet, B-6 at depths of 20, 30 and 40 feet. Toluene was detected in thirteen of the nineteen samples. Toluene was detected in; Boring B-1 at 210 mg/kg at 5 feet, 390 mg/kg at 15 feet, 86 mg/kg at 30 feet, 160 mg/kg at 45 feet, 1,300 mg/kg at 60 feet, 0.047 mg/kg at 85 feet, 0.16 mg/kg at 90 feet, Boring B-2 at 1,500 mg/kg at 15 feet, 1.2 mg/kg at 30 feet, Boring B-3 at 3,400 mg/kg at 25 feet, Boring B-5 at 0.017 mg/kg at 15 feet, 540 mg/kg at 40 feet, Boring B-6 at 0.008 mg/kg at 40 feet. Toluene was not detected in Boring B-1 at 75 and 80 feet, B-4 at 30 and 40 feet, B-6 at 20 and 30 feet. I I I i i i PRELIMINARY SITE CHARACTERIZATION CALIFORNIA SHEET METAL SEPTEMBER 1992 PAGE NO.7 Ethyl benzene was detected in ten of the nineteen samples analyzed. Ethyl benzene was detected in; Boring B-1 at 50 mg/kg at 5 feet, 170 mg/kg at 15 feet, 71 mg/kg at 30 feet, 75 mg/kg at 45 feet, 300 mg/kg at 60 feet and 0.049 mg/kg at 90 feet, Boring B-2 at 340 mg/kg at 15 feet, 4.7 mg/kg at 30 feet, Boring B-3 at 800 mg/kg at 35 feet, Boring B-5 at 160 mg/kg at 40 feet. Ethyl benzene was not detected in Boring B-1 at 75, 80 and 85 feet, Boring B-4 at 30 and 40 feet, B-5 at 15 feet, B-6 at 20, 30 and 40 feet. Due to the presence of "gasoline" in the soil, selected 'samples were analyzed for Lead. Lead was detected in B-1 at 5 feet at 39 mg/kg (TTLC) and 2.7 mg/1 (STLC), at 30 feet at 4.5 mg/kg (TTLC) at 85 feet at 4.5 mg/kg, at B-2 at 30 feet at 3.9 mg/kg, at B-6 at 20 feet at 3.6 mg/kg and at 40 feet at 8.5 mg/kg. Regional Water Quality Control Board recommended guidelines for gasoline, and the gasoline constituent volatile aromatics, benzene, toluene, recommended and total xylenes have been calculated using the LUFT methodology by multiplying the most stringent current federal or state water quality standards by a factor of 1,000 to account for attenuation due to site-specific parameters including vertical separation to ground water, soil lithology, fractures in subsurfaces, annual average precipitation, and any direct conduits to ground water. The limits are 1,000 mg/kg for TPH as gasoline, 1.0 mg/kg for benzene and toluene, and 50 mg/kg for ethyl benzene and total xylenes. 4.0 CONCLUSIONS The data obtained from the field operations suggest that soil impacted with gasoline hydrocarbons, and the gasoline constituent volatile aromatics at concentrations in excess of RWQCB recommended guidelines exists at the subject site in the area directly beneath the former 550 gallon underground gasoline storage tank to a depth of 60-75 feet, and laterally of approximately 35 feet. The estimated volume of soil with concentrations of gasoline hydrocarbons in excess of 1,000 mg/kg, and volatile aromatics in excess a their respective recommended guidelines is 6,000 cubic yards. I '1 I I I I I '1 PRELIMINARY SITE CHARACTERIZATION CALIFORNIA SHEET METAL SEPTEMBER 1992 PAGE NO.8 4.1 Remedial Action Alternatives At least four options for remediation of the soil are applicable to the site 1) excavation and transportation of soil to an approved landfill or recycling facility, 2) in-situ vapor extraction, 3) excavation and uncontrolled aeration, and 4) no action. In the first action, impacted soil would be excavated and transported to a suitable disposal site or recycling firm. Due to the depth of the contaminated soil we believe that the existing 'means of excavation would not be suitable for this site. The next option is to treat the soil through in-situ vapor extraction. Wells are drilled into the impacted soil. The hydrocarbon vapors are extraction and treated as a unit such as a thermal oxidizer. We believe that three wells would effectively extract the gasoline hydrocarbons, and the time frame for successful treatment would be approximately six to nine months. The cost for installing the wells and below ground manifolding would be approximately $32,000.00. The monthly cost rental of an extraction unit will be approximately $8,500.00/month, or $42,5000 for five months, including the cost of electricity, and/or supplemental fuel. Verification, soil sampling and system abandonment would be approximately $17,300. Management fees including Work Plans, regulatory liaison, supervision, reports, etc. will be approximately $10,000. The overall cost is estimated to be $101,800. However, we believe that additional borings will be necessary to further define the lateral extent of the contamination. The third option is to excavate the soil and "aerate" on-site. Again due to the depth of the contamination we believe that excavation of the soil is not acceptable. The fourth option is to leave the site "as-is" and allow natural in-situ biodegradation to occur. Due to the high concentrations of gasoline and the gasoline constituent volatile aromatic we believe that there is a "risk" of leaking hydrocarbons to groundwater, which is at a depth of approximately 200 feet. Long term monitoring of the hydrocarbons may be required at additional costs. PRELIMINARY SITE CHARACTERIZATION CALIFORNIA SHEET METAL SEPTEMBER 1992 PAGE NO.9 5.0 RECOMMENDATIONS WILSON AND ASSOCIATES, INC. would recommend that two additional borings be completed in order to assess the lateral extent of the contamination. One boring would be located southwest of Boring B-3, and another boring would be located northwest of Boring B-5. At the completion of the laboratory analysis. W&A would prepare a Work Plan for implementation of a vapor extraction system. 6.0 CLOSURE This report has been prepared~for the exclusive use of the John McCauley as it pertains to the location of the former gasoline tank at 601 Eureka Street, Bakersfield, California. The conclusions and recommendations rendered are opinions based on information obtained within the scope of work authorized by the client. This report should not be regarded as a guarantee that no further contamination, beyond that which may have been detected within the scope of this study, is present on or beneath the site. If additional information regarding the possible presence or past use of hazardous materials at the site becomes available, then the need for further field investigation should be re-evaluated. Similarly, if suspected contamination is 'encOuntered during earthwork or construction activities, a qualified engineer or geologist should be on-site to monitor the soils and collect samples for laboratory analysis. Work has been performed in accordance with generally accepted practices in geotechnical and environmental engineering, engineering geology, and hydrogeology. No other warranty, either expressed or implied, is made. Thank you for this opportunity to be of service. If you have any questions regarding this report or the information contained herein, please contact this office at your convenience. '1 I I i I F- O II II oo. SITE PLAN co~c~T~",,1 / ~,, ..... ~ /~ .~ ~ ' ~-t' .. .il OF CONTAMINATION. .! '1 WILSON &ASSOCIATES ' · 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON iI Petroleum Hydrocarbons Date of Report: 03/30/92 Lab ~: 2517-1 323-6460 Sample Description: PROJECT: 601 EUREKA: 1-5' (SOIL) 03-19-92 FROM 0800 HRS TO 1530 HRS COLLECTED BY J.R. WILSON TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. I Sample Matrix: Soil I Date Sample Date Sample Date 3%nalysis Collected: Received ® Lab: Completed: 03/19/92 03/19/92 03/27/92 Constituents Minimum Analysis Reporting Reporting Results Units Level Benzene' None Detected mg/kg 20. Toluene 210. mg/kg 20. Ethyl Benzene 50. mg/kg 20. o-Xylene 360. mg/kg 20. m & p-Xylene 600. 'm~/kg 20. Total Petroleum Hydrocarbons (gas) 6000. m~/kg 5000. i Note:High reported PQL due to high concentrations of target analytes in sample. 1 1 I California D.O.H.S. Cert. ~1186 Department Supervisb~ 4100Ac]as (2c. · Bakersfield. C~ 9330~ · (E)OS-J 327~45)1 I · F~,X (15~2b---J 327-1 91 8 I WILSON & ASSOCIATES 2217 "E" STREET iBAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON Sample Description: I Constituents ILead 323-6460 PROJECT: 601 EUREKA: 1-5' COLLECTED BY J.R. WILSON Date Reported: 03/30/92 Date Received: 03/19/92 Laboratory No.: 2517-1 Page 1 (SOIL) 03-19-92 FROM 0800 HRS TO 1530 HRS TOTAL CONT~/~INANTS (Title 22, Article 11, California Code of Regulations) Sample Results Units 39. mg/kg Regulatory Criteria' Method STLC TTLC P.Q.L~ Method mq/L_ mg/kG 4.0 SW-6010 5.0 1000. Comment: ~1 P.Q.L. = N.D. = i STLC = TTLC = Ail constituents reported above are in mg/kg (unless otherwise stated) on an as received (wet) sample basis. Results reported represent totals (TTLC) as sample subjected to appropriate techniques to determine total levels. Practical Quantitation Limit .(refers to the least amount of analyte detectable based on sample size used and analytical technique employed. None Detected (Constituent, if present, would be less than the method P.Q.L.) . Soluble Threshold Limit Concentration Tofal Threshold Limit Concentration REFERENCES: SW = "T=st Methods for Evaluating Solid Wastes Physical/Chemical Methods", SW 846, September, 1986. Department Supervisor Ct. - Bakersfield, CA 9330~ · [80b-) 327--1911 · FAX [8(2b--) 327-1918 APR 1 ? 7992 IWILSON & ASSOCIATES 2217 "E" STREET BA/CERSFIELD, CA 93301 Attn.: JOHN R. WILSON Date Reported: 04/14/92 Date Received: 03/19/92 Laboratory No.: 2517-1ADD'N 323-6460 WET TEST EXTRACT cONTA~LINA~TS ANALYZED ACCORDING TO TITLE 22, ARTICLE 11, CALIFORNIA CODE OF REGULATIONS FOR HAZARDOUS WASTE DETERMINATION (STLC) Sample Description: PROJECT: 60! EUREKA: 1-5' (SOIL) 03-19-92 FROM 0800 HRS TO 1530 HRS COLLECTED BY J.R. WILSON I I Sample Results Method Constituents mg/liter P.Q.L. Method Lead 2.7 0.5 SW-6010 Regulatory Criteria STLC 5.0 I. Comment: Ail metals reported above are in mg/liter on a filtrate basis (STLC). These results are based on extracting sample according to Title 22, Article 11, California Administrative Code using a 48-hour citric acid (deionized water for hexavalent chromium) extraction. P.Q.L. = Practical Quantitation Limit (refers to the least amount of analyte detectable based on sample size used and analytical technique employed. N.D. = None Detected (If constituent is present it would be less than the method P.Q.L. listed to the right. STLC = Soluble Threshold Limit Concentration ]1 REFERENCES: SW = "Test Methods for Evaluating Solid Wastes Physical/Chemical Methods", SW 846, September, 1986. :! 4100 Atlas Ct. · Bakersfield, CA 9332)8 · (805) 327~4911 · FAX (80~ 327-1918 ! WILSON & ASSOCIATES 2217 "E" STREET IBA~fERSFIELD, CA 93301 Attn.: JOHN R. WILSON Petroleum Hydrocarbons 323-6460 Date of Report: 03/31/92 Lab #: 2517-3 Sample Description: PROJECT: 601 EUREKA: 1-15' (SOIL) 03-19-92 FROM 0800 HRS TO 1530 HRS COLLECTED BY J.R. WILSON TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. ISample Matrix: Soil IDate Sample Collected: 03/19/92 Date Sample Received ® Lab: 03/19/92 Date Analysis Completed: 03/30/92 I Analysis Reporting Constituents Results Units i Benzene None Detected mg/kg Toluene 390. mg/kg Ethyl Benzene 170. mg/kg o-Xylene 230. mg/kg I m & p-Xylene 960. mg/kg Total' Petroleum Hydrocarbons (gas) 6000. m~/kg Minimum Reporting Level 100. 10. 10. 10. 10. 2000. Note: High reported PQL due to high concentrations of target analytes in sample. California D.O.H.S. Cert. Department Rupervisor/ WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON Petroleum Hydrocarbons Date of Report: 03/27/92 Lab ~:' 2517-6 323-6460 Sample Description: PROJECT: 601 EUREKA: 1-30' (SOIL) 03-19-92 FROM 0800 HRS TO i530 HRS COLLECTED BY J.R. WILSON ! TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method Modified EPA 8015 Individual constituents by EPA Method 5030/8020. I Sample Matrix: Soil Date Sample Date Sample Date Analysis Collected: Received ® Lab: Completed: 03/19/92 03/19/92 03/26/92 'I Minimum Analysis Reportins Reportin~ Constituents Results Units Level I Benzene ' None Detected m~/kg 2. · Toluene 86. ms/ks 2. Ethyl Benzene 71. mg/kg 2. Io-Xylene 88. m~/k~ 2. m & p-Xylene 350. mg/kg 2. Total Petroleum Hydrocarbons (gas) 3100. mg/kg 500. ! Note: High reported PQL due to high concentrations of target analytes in sample. California D.O.H.S. Cert. ~1186 Department Supervisor 4100 Ar]as Oc. · 5~akersfielcl, CA 93~C~ · ~ 327~-~91 I · FA>< (15C)5-J 32-7-1 WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON Sample Description: Constikuents I Lead Date Reported: 04/02/92 Date Received: 03/19/92 Laboratory No.: 2517-6 Page 1 323-6460 PROJECT: 601 EUREKA: 1-30' (SOIL) 03-19-92 FROM 0800 HRS TO 1530 HRS COLLECTED BY J.R. WILSON TOTAL CONTAMINANTS (Title 22, Article 11, California Code of Regulations) Sample Results Units 4.5 mg/k~ Regulatory Criteria Method STLC .TTLC P.Q.L. Method mq/L. mq/kq 4.0 SW-6010 5.0 '. 1000. comment: :~I p Q.L. = I N.D. = STLC = · - TTLC = Ail constituents reported above'are in m~/k9 (unless otherwise stated) on an as received (wet) sample basis. Results reported represent totals (TTLC) as sample subjected to appropriate techniques to determine total levels. Practical Quantitation Limit' (refers to the least amount of analyte detectable based on sample size used and analytical technique employed. None Detected (Constituent, if present, would be less than the method P.Q.L.). Soluble Threshold Limit Concentration Total Threshold Limit Concentration REFERENCES: SW = "Test Methods for Evaluatin~ Solid Wastes Physical/Chemical Methods", SW 846, September, 1986. Department Supervisor 41 OD Ar3as C~. · Bakersl~elrt, CA 93308 · (805) 327-4911 · FAX lB05--) 327-1918 WILSON & ASSOCIATES I2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON Petroleum Hydrocarbons 323-6460 Date of Report: 03/27/92 Lab #: 2517-9 Sample Description: PROJECT: 601 EUREKA: 1-45' (SOIL) 03-19-92 FROM 0800 HRS TO 1530 HRS COLLECTED BY J.R. WILSON ITEST.METHOD: TPH by D.O.H.S. / L.U.F.T. - EPA Manual Method Modified 8015 Individual constituents by EPA Method 5030/8020. i Sample Matrix: Soil Date Sample Collected: 03/19/92 Date Sample Received ® Lab: 03/19/92 Date Analysis Completed: 03/26/92 Minimum Analysis Reporting Reporting Constituents Results Units Level Benzene 5. mg/kg 5. Toluene 160. mg/kg 5. Ethyl Benzene 75. mg/kg 5. o-Xylene 140. m~/kg 5. m & p-Xylene 250. mg/kg 5. Total Petroleum Hydrocarbons (gas) 3000. mg/kg 1000. Not e: High reported PQL due to high concentrations of target analytes in sample. California D.O.H.S. Cert. ~1186 Department Supervisor 4100 Atlas 0c. · Bakersfield. CA 933C)~ · (BC)5~ 327-4911 · FAX (EIC~ 327-191 El Petroleum Hydrocarbons WILSON & ASSOCIATES Date of I 2217 "E" STREET Report: 03/31/92 BAKERSFIELD, CA 93301 Lab #: 2517-12 Attn.: JOHN R. WILSON 323-6460 I Sample Description: PROJECT: 601 EUREKA: 1-60' (SOIL) 03-19-92 FROM 0800 HRS TO 1530 HRS COLLECTED BY J.R. WILSON TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. I Sample Matrix: Soil I Date Sample Date Sample Date Analysis Collected: Received @ Lab: Completed: - 03/19/92 03/19/92 03/30/92 Analysis Reporting Constituents Results Units Benzene 110. rog/kg Toluene 1300. Ethyl Benzene 300. o-Xylene 460. mg/kg m & p-Xylene 2100. 'mg/kg Total Petroleum Hydrocarbons (gas) 13000. mg/kg Minimum Reporting Level 20. 20. 20. 20. 20. 5000. I ! ! ! Note: High reported PQL due to high concentrations of target analytes in sample. California D.O.H.S. Cert. Department Supervisor 41 Cf]Atlas Ct. · Bakers~eld. CA 93308 · (805-~ 327~1~)1 ~ · ~--~X (SC)b-) 327-191B WILSON & ASSOCIATES 217 "E" STREET AKERSFIELD, CA 93301 Attn.: JOHN R. WILSON '.lsample Description: Petroleum Hydrocarbons 323-6460 PROJECT: 601 EUREKA: 1-75' (SOIL) HRS COLLECTED BY J.R. WILSON Date of Report: 03/30/92 Lab %: 2517-15 03-19-92 FROM 0800 HRS TO 1530 '~TEST~ METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. ilsample Matrix: Soil '~ate Sample Date Sample Date Analysis Collected: Received @ Lab: Completed: 03/19/92 03/19/92 03/27/92 Constituents Analysis Reporting Results Units lBenzene None Detected mt/kg Toluene None Detected mt/kg Ethyl Benzene None Detected mt/kg ~.o-Xylene None Detected mt/kg m & p-Xylene None Detected mt/kg Total Petroleum ~1 Hydrocarbons (gas) None Detected mt/kg Minimum Reporting Level 0.005 0.005 0.005 0.005 0.005 1. California D.O.H.S. Cert. 41 O0 ~d@s Ct. · 5B@kersSeld. C~, 93308 · (E)C)5) 327~491 I · F:~X (15)05] ,_~27-1 918 WILSON & ASSOCIATES ItAt217 "E" STREET RSFIELD, CA 93301 n.: JOHN R. WILSON 323-6460 Date Reported: 04/02/92 Date Received: 03/19/92 Laboratory No.: 2517-15 Page ~ ~ample Description: PROJECT: 601 EUREKA: 1-75' (SOIL) 03-19-92 FROM 0800 HRS TO 1530 HRS COLLECTED BY J.R. WILSON TOTAL CONTAMINANTS (Title 22, Article 11, California Code of Regulations) I Regulatory Criteria Method STLC TTLC Constit6ents Sample Results Units P.Q.L. Method mq/L mg/kg lead None Detected mg/kg 2.5 SW-6010 5.0 ~1000: iI lo~ent: Ail constituents reported above are in mg/kg (unless otherwise stated) on an as received (wet) sample basis. Results reported represent totals (TTLC) as sample subjected to appropriate techniques to determine total levels. Practical Quantitation Limit ('refers to the least amount of analyte detectable based on sample size used and analytical technique employed. ~ .D. = None Detected (Constituent, if present, would be less than the method P.Q.L.) . .i:~SLC = Soluble Threshold Limit Concentration LC = Total Threshold Limit Concentration i ,~EFERENCES: , SW = "Test Methods for Evaluating Solid Wastes Physical/Chemical Methods", SW 846, September, 1986. Department Supervisor 41 O0 ~tlas (2c. · 5Bskersfield. CA 93~ · [15~b--) 327-491 I · FAX [805--J 327-1918 WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON lSample Description: Petroleum Hydrocarbons 323-6460 Date of Report: 03/31/92 Lab #: 2517-16 PROJECT: 601 EUREKA: 1-80' (SOIL) 03-19-92 FROM 0800 HRS TO 1530 HRS COLLECTED BY J.R. WILSON I ! TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil IDate Sample Collected: 03/19/92 Constituents IBenzene Toluene Ethyl Benzene Io-Xylene m & p-Xylene Total Petroleum Hydrocarbons (gas) Date Sample Received ~ Lab: 03/19/92 Analysis Results None Detected None Detected None Detected None Detected None Detected None Detected Date Analysis Completed: 03/30/92 Reporting Units mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg Minimum Reporting Level 0.005 0.005 0.005 0.005 0.005 1. California D.O.H.S. Cert. Department SuPervisor 41 OOZe]as Ct. · ~akers~elcl. CA ~330~ · ~E)C3~ 327~911 · F~v~ (E)Cb----) 327-1 WILSON & ASSOCIATES '2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: ' JOHN R. WILSON Isim'nple Description: Petroleum Hydrocarbons 323-6460 Date of Report: 03/31/92 Lab #: 2517-17 PROJECT: 601 EUREKA: 1-85' (SOIL) 03-19-92 FROM 0800 HRS TO 1530 HRS COLLECTED BY J.R. WILSON I TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. ~ I Sample Matrix: Soil Date Sample Date Sample Date Analysis Collected: Received ® Lab: Completed: 03/19/92 03/19/92 03/30/92 Analysis Reporting Constituents Results Units il Benzene None Detected m~/kg Toluene ' 0.047 mg/kg Ethyl Benzene None Detected mg/kg I o-Xylene None Detected mg/kg m & p-Xylene 0.014 mg/kg l Total Petroleum Hydrocarbons (gas) None Detected mg/kg Minimum Reporting Level 0.005 0.005 0.005 0.005 0.005 1. .! California D.O.H.S. Cert. #1186 Department Supervisor Bakersfield. CA 9330~ · (15~(D~ 327~191 I · F~X (S05-) 327-1918 WILSON & ASSOCIATES tAK217 "E" STREET ERSFIELD, CA 93301 tn.: JOHN R. WILSON , Ilample Description: 323-6460 Date Reported: 04/02/92 Date Received: 03/19/92 Laboratory No.: 2517-17 Page i PROJECT: 601 EUREKA: 1-85' (SOIL) 03-19-92 FROM 0800 HRS TO 1530 HRS COLLECTED BY J.R. WILSON TOTAL CONTAMINANTS (Title 22, Article 11, California Code of Regulations) Constlt~ents IJead Sample Results Units Regulatory Criteria Method STLC TTLC P.Q.L. Method mq/L mq/kg 4.5 mg/k9 2.5 SW-6010 5.0 1000. ilomment: Ail constituents reported above are in mg/kg (unless otherwise stated) on an as received (wet) sample basis. Results reported represent totals (TTLC) as sample subjected to appropriate techniques to determine total levels. ?.Q.L. = Practical Quantitation Limit (refers to the least amount of analyte detectable based on sample size used and analytical technique employed. .D. = None Detected (Constituent, if present, would be less than the method P.Q.L.). TLC = Soluble Threshold Limit Concentration TTLC = Total Threshold Limit Concentration IEFERENCES: SW = "Test Methods for Evaluating Solid Wastes Physical/Chemical Methods", SW 846, September, 1986. Department Supervisor WILSON & ASSOCIATES I 2217 "E" STREET BA/fERSFIELD, CA 93301 Attn.: JOHN R. WILSON t ECEiVED Petroleum Hydrocarbons 323-6460 Date of Report: 04/06/92 Lab ~: 2576-1 Sample Description: CALIF. SHEET METAL: 1 - 90' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. I Sample Matrix: Soil I Date Sample Date Sample Date Analysis Collected: Received ® Lab: Completed: 03/20/92' 03/23/92 04/05/92 I Analysis Reporting Constituents Results Units I Benzene 0.084 mg/kg ,, Toluene 0.16 mg/kg Ethyl Benzene 0.049 mg/kg I o-Xylene 0.026 mg/kg m & p-Xylene 0.062 mg/kg Total Petroleum Hydrocarbons (gas) None Detected mg/kg Minimum Reporting. Level. 0. 005 0. 005 0.005 0.005 0.005 California D.O.H.S. Cert. ~1186 I Department Supervisor 4100 A~as C~. · Bakersfield, CA 93308 · (80b---J 327~491 I · FAX (805) 327-1918 Petroleum Hydrocarbons iWILSON &ASSOCIATES Date of 2217 "E" STREET Report:. 04/06/92 BAKERSFIELD, CA 93301 Lab %: 2576-2 Attn.: JOHN R. WILSON 323-6460 Sample Description: CALIF. SHEET METAL: 2 15' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON I ! TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method o Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil .! Date Sample Date Sample Collected: Received ® Lab: 03/20/92 03/23/92 Constituents Date Analysis Completed: 04/05/92 Analysis Reporting Results Units Benzene ~, 1000. mg/kg Toluene 1500. mg/kg Ethyl Benzene 340. mg/kg o-Xylene 480. mg/kg m & p-Xylene 2000. mg/kg Total Petroleum Hydrocarbons (gas) 12000. mg/kg Minimum Reporting Level 5o 1000. .! High reported PQL due to high concentration of target analytes. California D.O.H.S. Cert. ~1186 Department Supervisor 41C)0 ~,clas C~. · EBaker~--~eld, C~ 9~30E) · (EBCb---) 327-491 I · FAX [E)(2~-) 327-191 E) Petroleum Hydrocarbons WILSON & ASSOCIATES Date of 2217 "E" STREET Report: 04/06/92 BAKERSFIELD, CA 93301 Lab #: 2576-4 Attn.: JOHN R. WILSON 323-6460 ,! Sample Description: CALIF. SHEET PIETAL: 2 - 30' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil Date Sample Date Sample Collected: Received @ Lab: 03/20/92 03/23/92 Constituents Date Analysis Completed: 04/05/92 Analysis ReportinN Results Units Benzene 0.2 mg/kg Toluene 1.2 mg/kg ' Ethyl Benzene 4.7 mg/kg o-Xytene 39. mg/kg m & p-Xylene 10. mg/kg Total Petroleum Hydrocarbons (gas) 400. mg/kg Minimum Reporting Level · 0.1 0.'1 0.1 0.1 0.1 200. .I High reported PQL due to high concentrations of target analytes. California D.O.H.S. Cert. ~1186 partment: Superv~isor 41 O0 Adas Oc. · ~aker'sfielcl. C~ 93._~D~ · ~ ~m7-4~)11 · F~X (l~2b--) ."q27-1918 '1 WILSON & ASSOCIATES I 2217 "E" STREET BAKERSFIELD, CA 9330I Attn.: JOHN R. WILSON 323-6460 Date Reported: 04/03/92 Date Received: 03/23/92 Laboratory No.: 2576-4 Page ISample Description: CALIF. SHEET METAL: 2 - 30' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON TOTAL CONTAMINAlqTS (Title 22, Article 11, California Code of Regulations) Constituents .Sample Results Units I Lead 3.9 mg/kg .! Regulatory Criteria Method STLC TTLC P.Q.L. Method mq/L mg/kq 3.5 SW-6010 5.0 1000. Comment: All constituents reported above are in mg/k9 (unless otherwise stated) on an as received (wet) sample basis. Results reported represent totals (TTLC) as sample subjected to appropriate techniques to determine total levels. P.Q.L. = Practical Quantitation Limit (refers to the least amount of analyte detectable based on sample size used and analytical technique employed. N.D. = None Detected (Constituent, if present, would be less than the method P.Q.L.). STLC = Soluble Threshold Limit Concentration TTLC = Total Threshold Limit Concentration REFERENCES: SW = "Test Methods for Evaluating Solid Wastes Physical/Chemical Methods", SW 846, September, 1986. Department Supervisor 4100 Atlas 0~. · ~aker~ffielcl, CA 93309 · (15~ib~ 327~491 I · FAX (80~ 327-1 ~)1B I I I I Petroleum Hydrocarbons WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON 323-6460 Sample Description: CALIF. SHEET METAL: 3 25' COLLECTED BY J.R. WILSON Date of Report: 04/02/92 Lab %: 2576-6 (SOIL) 03-20-92 FROM 0800 TO 1700 TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil Date Sample Date Sample Date Analysis Collected: Received ® Lab: Completed: 03/20/92 03/23/92 04/01/92 Analysis Reporting Constituents Results Units Benzene 400. mg/kg' Toluene 3400. mg/kg Ethyl Benzene 800. mg/kg o-Xylene 1500. mg/kg m & p-Xylene 2700. mg/kg Total Petroleum Hydrocarbons (gas) 30000. mg/kg ,I Minimum Reporting' Level 100. 100. 100. 100. 100. 20000 ,! High reported PQL due to high concentrations of target analytes in sample. California D.O.H.S. Cert. ~1186 Department Supervisor 4100A~@s Oa. · i~akems~eld, E2A 9~(2)~ · (l~b----) 327~491 I · I:AX (BOb---) 3~m7-1 91B I I I I I I ! ! 'I Petroleum Hydrocarbons WILSON & ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON 323-6460 Date of Report: 04/07/92 Lab ~: 2576-7 Sample Description: CALIF. SHEET METAL: 4 30' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Date Sample Collected: 03/20/92 Soll Constituents Benzene Toluene Ethyl Benzene o-Xy!ene m & p-Xylene Total Petroleum Hydrocarbons (gas) Date Sample~ Received @ Lab: 03/23/92 Analysis Results None Detected None Detected None Detected None Detected None Detected None Detected Date Analysis Completed: 04/06/92 Reporting Units mg/kg mg/kg mg/kg mg/kg mg/kg mg/k9 Minimum Reporting Level 0.005 0.005 0.005 0.005 0.005 0.1 California D.O.H.S. Cert. %1186 Department Supervisor 41 O0 Ar]as Or. · Baker~-~elcl, OA ~)~_-~D~ · (805-] 32~-491 I · F~kX (15~D5") ~27-1 ~)18 ! ! I WILSON &ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON ,I Petroleum Hydrocarbons 323-6460 Date of Report: 04/01/92 Lab $: 2576-8 Sample Description: CALIF. SHEET METAL: 4 40' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. I ~ample Matrix: Soil Date Sample Date Sample Date Analysis Collected: Received ® Lab: Completed: 03/20/92 03/23/92 03/31/92 '1 .! Constituents Minimum Analysis Reporting Reporting Results Units Level Benzene None Detected mg/kg 0.005 Toluene None Detected mg/kg 0.005 Ethyl Benzene None Detected mg/kg 0.005' o-Xylene None Detected mg/kg 0.005 m & p-Xylene None Detected mg/kg 0.005 Total Petroleum Hydrocarbons (gas) None Detected mg/kg 1. California D.O.H.S. Cert. $1186 Department Supervisor 4100 At~as b--~. · Bakers~eld, CA 93308 · [80b--] 327-491 I · FAX (80b--] 327-191 8 I I I I I Petroleum Hydrocarbons WILSON &ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON 323-6460 Date of Report: 04/07/92 Lab %: 2576-11 Sample Description: CALIF. SHEET METAL: 5 15' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil Date Sample Date Sample Date Analysis Collected: Received @ Lab: Completed: 03/20/92 03/23/92 04/06/92 Analysis Reporting Constituents Results Units Benzene 0.011 mg/kg Toluene 0.017 mg/kg Ethyl Benzene None Detected mg/kg o-Xylene None Detected mg/kg m & p-Xylene None Detected mg/kg Total Petroleum Hydrocarbons (gas) None Detected mg/kg Minimum Reporting Level 0.005 0.005 0.005 0.005 0.005 California D.O.H.S. Cert. ~1186 Department Supervisor 4100 Ar~as Oc. · 5)aker~--field, CA 9330t9 · (BC)~ 327-z]911 · FAX (B05-) 327-191 8 Petroleum Hydrocarbons iWILSON &ASSOCIATES Date of 2217 "E" STREET Report: 04/02/92 BAKERSFIELD, CA 93301 Lab ~: 2576-10 Attn.: JOHN R. WILSON 323-6460 I Sample Description: CALIF. SHEET METAL: 5 - 40' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON ,! TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil Date Sample Date Sample Collected: Received @ Lab: 03/20/92 03/23/92 Constituents Analysis Results Date Analysis Completed: 04/01/92 Reporting Units Benzene 42. mg/kg Toluene 540. mg/kg Ethyl Benzene 160. mg/kg o-Xylene 300. mg/kg m & p-Xylene 510. mg/kg Total Petroleum Hydrocarbons (gas) 7000. mg/kg Minimum Reporting Level 5. 5. 5. 2000. '1 High reported high target analytes sample. PQL due to concentrations of in California D.O.H.S. Cert. ~1186 Department Supervisor Petroleum Hydrocarbons I I WILSON &ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON 323-6460 Date of Report: 04/02/92 Lab ~: 2576-12 Sample Description: CALIF. SHEET METAL: 6 - 20' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON ! I TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil ! ! I I ! Date Sample Collected: 03/20/92 Constituents Benzene Toluene Ethyl Benzene o-Xylene m & p-Xylene Total Petroleum Hydrocarbons (gas) Date Sample ' Date Analysis Received ® Lab: Completed: 03/23/92 04/01/92 Analysis Reporting Results Units None Detected mg/kg None Detected mg/kg None Detected mg/kg None Detected mg/kg None Detected mg/kg None Detected mg/kg Minimum Reportingl Level 0.005 0.005 0.005 0.005 0.005 1. California D.O.H.S. Cert. ~1186 Department Supervisor' 4100 Atlas C~. · Bakersfield, CA 93308 · (80~ 327~-~911 · FAX (805-'J 327-1918 WILSON &ASSOCIATES Date Reported: 04/03/92 Page I2217 "E" STREET Date Received: 03/23/92 BAICERSFIELD, CA 93301 Laboratory No.: 2576-12 Attn.: JOHN R. WILSON 323-6460 ! . Sample Description: CALIF. SHEET METAL: 6 - 20' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON ! I TOTAL CONTAMINAlqTS (Title 22, Article 11, California Code of Regulations) Constituents SamDle Results Units I Lead 3.6 mg/kg Regulatory Criteria Method STLC TTLC P.Q.L. Method mq/L mq/kq 3.5 SW-6010 5.0 1000. I Comment: STLC · TTLC All constituents reported above are in mg/k9 (unless otherwise stated) on an as received (wet) sample basis. Results reported represent totals (TTLC) as sample subjected to appropriate techniques to determine total levels. P.Q.L. = Practical Quantitation Limi~ (refers to the least amount of analyte detectable based on sample size used and analytical technique employed. = None Detected (Constituent, if present, would be less than the method P.Q.L.). = Soluble Threshold Limit Concentration = Total Threshold Limit Concentration REFERENCES: SW = "Test Methods for Evaluating Solid Wastes Physical/Chemical Methods", SW 846, September, 1986. Department Supervisor 4100Ar3as ~--~. · F%akers~Selcl, OA 92k_~m(2~ · (8C]b--) 327~491 I · FAX (15)Ob--) [B27-I 918 Petroleum Hydrocarbons I i WILSON & ASSOCIATES Date of 2217 "E" STREET Report: 04/07/92 BAKERSFIELD, CA 93301 Lab ~: 2576-13 Attn.: JOHN R. WILSON 323-6460 Sample Description: CALIF. SHEET METAL: 6 - 30' COLLECTED BY J.R. WILSON (SOIL) 03-20-92 FROM 0800 TO 1700 TEST METHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil I Date Sample Date Sample~ Collected: Received ® Lab: 03/20/92 03/23/92 iI Constituents Benzene Toluene Ethyl Benzene o-Xylene m & p-Xylene Total Petroleum Hydrocarbons (gas) Analysis Results None Detected None Detected None Detected None Detected None Detected None Detected Date Analysis Completed: 04/06/92 Reporting Units mg/kg mg/kg mg/kg mg/kg mg/kg mg/kg Minimum Reporting Level 0.005 ·0.005 0.005 0.005 0.005 California D.O.H.S. Cert. ~1186 I Department Supervisor 4100A~las 0~. · I~aker~field, ~ ~ · (BOb--) 327~4~1 I · F~X (8C)~ 327-1 ~1B I I I Petroleum Hydrocarbons WILSON &ASSOCIATES 2217 "E" STREET BAKERSFIELD, CA 93301 Attn.: JOHN R. WILSON 323-6460 Date'of Report: 04/02/92 Lab ~: 2576-14 Sample Description: CALIF. SHEET 'METAL: 6 - 40' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON TEST ~ETHOD: TPH by D.O.H.S. / L.U.F.T. Manual Method - Modified EPA 8015 Individual constituents by EPA Method 5030/8020. Sample Matrix: Soil Date Sample Date Sample Collected: Received @ Lab: 03/20/92 03/23/92 Constituents Benzene Toluene Ethyl Benzene o-Xylene m & p-Xylene Total Petroleum Hydrocarbons (gas) Analysis Results None Detected 0.008 None Detected None Detected 0.010 None Detected Date Analysis Completed: 04/01/92 Reporting Units mg/kg mg/kg mg/kg mg/kg mg/k9 mg/kg Minimum Reporting Level 0.005 ~0.005 0.005 0.005 0.005 California D.O.H.S. Cert. %1186 Department Supervisor 4100 Ar3as Oz. · Baker~%elcl. ~ 9330~ · (B05) 327~4911 · FAX (80b---) 327-1918 '1 I I I I Lead WILSON & ASSOCIATES 2217 "E" STREET B~2CERSFIELD, CA 93301 Attn.: JOHN R. WILSON 323-6460 Date Reported: Date Received: 03/23/92 Laboratory No.: 2576-14 Page Sample Description: CALIF. SHEET METAL: 6 40' (SOIL) 03-20-92 FROM 0800 TO 1700 COLLECTED BY J.R. WILSON TOTAL CONTAMINANTS (Title 22, Article ll, California Code of Regulations) Method ~ Constituents Sample Results Units P.Q.L. Method 8.5 mg/kg Comment: ! t N.D. STLC - TTLC Regulatory Criteria STLC TTLC mq/L. mq/kq 3.5 SW=6010 5.0 1000. All constituents reported above are in mg/k9 (unless otherwise stated) on an as received (wet) sample basis. Results reported represent totals (TTLC) as sample subjected to appropriate techniques to determine total levels. P.Q.L. = Practical Quantitation Limi't (refers to the least amount of analyte detectable based on sample size used and analytical technique employed. = None Detected (Constituent, if present, would be less than the method P.Q.L.). = Soluble Threshold Limit Concentration = Total Threshold Limit Concentration . REFERENCES: SW = "Test Methods for Evaluating Solid Wastes Physical/Chemical Methods", SW 846, September, 1986. Department Supervisor 4100 Atlas Ct. · Bakers~eld. CA 93308 · ~)Cb--] 327-4911 · FAX [805-J 32'7-1 91 [] 4100 Atlas Court IRC. Bakersfield, California 93308 CHAIN OF CUSTODY 0 ~ ~ ~ ~ ~- ~ ~ ~ ~ Matrix (S) Soil (SL) Sludge .... (~ Water (~her) - .... Results Needed by: = Date & Time ~ Number and r , - ' ~~ Container Type I ..~_~~. 4100 Atlas Court I_Z:kBORATDRIES. II-lC. Bakersfield, California 93308 CHAIN OF CUSTODY q '- ~ ~ . +~, u ~'" - . ~ ¢ Matrix (S) Soil (SL) Sludge , (~ Water (~her) ,. ~" ~. ~' ~' ~' ~' · - ~ ~ ~ ~ ~"~~ ~' < ...... < < ~' .. ~ ~ ~ .... ~. ~. ~. ~. ~.,_~. -< Samples rec. cold ~ ~. Custody Seals ~ ~ ~ ~esults ~eeded ~ Date & Time Number and ~' ~' 5' ]' ~ ~ ]' ~ OontainerType BORATORIES, InC. Bakersfield, California 93308 CHAIN OF CUSTODY · ~ '' ~ ~ ' - ' -' ''~ ~ ~~ ' o-. " 'r - ~~~ ~ ~ ~ ~ ~ -~ ~ ~~ ~~ I~ Matrix (S) Soil (SL) Sludge ~ . (W) Water (Other) . & Samples rec. cold (y/n). ~ Custody Seals (y/n) ~ ~ Results Needed by: ~ ~ Date & Time ~ q ~ ~. ~ ~umber and ~ ~' ~'~ ~' ~ Container Type i I FIRE DEPARTMENT John M. McCaule¥ California Sheet' Metal 4293 Country Club Orive Bakersfield, CA 93306 Dear Mr. McCauley: a,.-2 NovemOer 1 5, iv= I I I The site assessment report, received an Septsmber 23, 1992, for the California Sheet Metal'facility located st 601 _.Eureka Street has been reviewed. "'This report, completed by John R. Wilson and Asscciates. recommends additional testing be accomplished in order to assess the furl extent of the contamination plume. We concur! Furthermore, it is recommended that the hydroc~bons in the soil (as gasoline) be removed using vapor extraction. With the submittal of a satisfactory corrective action plan, meeting all of the requirements of Section 2725(c) Article 11, Title 23 CCR, it is anticipated that vapor extraction would be found a~ acceptable means of mitigation. I I I I I I I I The next step must be to complete the sampling necessary to define the full extent (both. vertical and lateral) of the contamination. These results as well as a corrective action plan must then be submitted to this office~-. The high .concentrations of product in the soil indicate a good likelihood of plume migration. It is important that you proceed in a timely manner to minimize the risks to the environment, as well as, the overall economic aspects of the clean-up. Sincerely yours, REH/ed cc: Gary J. Leery GJL Environmental 4009 Fairwood Street · Bakersfield, CA 93306-1310 i EX~IIBIT'6