HomeMy WebLinkAbout2900 UNION AVE_GROUNDWATER LETTER 7.1.08` E2C Remed "n
e«, ,e WW PoiYOdWIfOM 0=.
July 1, 2008
Mr. Nassri Jaber
2900 Union Avenue
Bakersfield, CA 93305
SUBJECT: Fourth Quarter 2007 and First Quarter 2008 Groundwater Monitoring
and Remediation Status Reports
Minit Stop Market
2900 Union Avenue
Bakersfield, California
Dear Mr. Jaber:
E2C Remediation (E2C) is pleased to present this report to'document,Fourth Quarter 2007 and
First Quarter 2008'groundwater monitoring activities for the Minit Stop Market located at 2900
Union Avenue (Site), Bakersfield, California. In addition, this report documents the remediation
status for the Site, including a recommendation to restart the remediation system using thermal
means for treatment of effluent vapors. This report has, been prepared by E2C for Mr. Nassri
Jaber to document site conditions as required by the State of California Regional Water Quality
Control Board--. Central Valley Region., the Lead .Regulatory Agency.
It is a pleasure to be of service, should you have any questions regarding this submittal, do not
hesitate to call the. undersigned at 661- 831 - 6906: .
Respectfully Submitted,
E2C Remediation
' ONAL C;EQi'
OL
William A. Law?.G. #7171
Director of Technical perations OF
cc: Mr. John Whiting, P.G.
Regional Water Quality Control Board — Central Valley Region
1685 E Street
Fresno, CA 93706
Mr. Howard H. Wines III, P.G.
Hazardous Materials Specialist
City of Bakersfield Fire Department, Office of Environmental Services
900 Truxton Avenue, Suite 210
Bakersfield, CA 93301
6300 VVQodmere Drive, Suft 105, eakws>fWcM CA 93313
6W 681. 831.8908 fax 861.831.6234 www ;62o net,
E2C Remediation
Er"=W"ental &Vw*sdm0,
const"and %wroc won, Inc.
FOURTH QUARTER 2007 AND FIRST.QUARTER 2008
GROUNDWATER MONITORING
AND
REMEDIATION STATUS REPORTS
MINIT STOP MARKET
2900 UNION AVENUE
BAKE RSFIELD, .CALIFORNIA
July 1, 2008
Project Number' 1803BK26
Prepared For:
Mr. Nassri Jaber
2900 Union Avenue
Bakersfield, CA 93305
Prepared By:
E2C, Remediation
Environmental /Engineering Consultants
5300 Woodmere Dr., Suite 105
Bakersfield, CA, 93313
530o Woodmem Drive. &M 105. IlWwWiOld, CA 93313
tel $81.931.8906 fax e8t.MA234 wwW:92p: net
Proiect Number 1803BK26 July 1 2008
TABLE OF CONTENTS
TABLEOF CONTENTS ................................................................................ ............................... i
LIST OF FIGURES
"'
LIST OF TABLES .......................................:............................................... ...............................
iii
"
LIST OF APPENDICES .............................................................................. ...............................
iii
"
EXECUTIVESUMMARY .............................................................................. ..............................1
Discussion of Groundwater Monitoring Data ............................................. ..............................1
Summary of Remediation Status ............................................................... ..............................2
Conclusions.............................................................................................. ...............................
3
Recommendations.................................................................................... ..............................4
1.0 INTRODUCTION ................................................................................ ..............................5
1.1 Site Description .............................................................................. ..............................5
1.2 Site Geology and Hydrology ........................................................... ..............................5
1.2.1 Site Geology ............................................................................ ..............................5
1.2.2 Site Hydrogeology ................................................................... ..............................6
1.3 Summary of Site History ................................................................. ..............................7
1.3.1 Site Assessment Status ........................................................... ..............................8
2.0 GROUNDWATER MONITORING ...................................................... ..............................8
2.1 Fourth Quarter 2007 Groundwater Monitoring ................................ ..............................8
2.1.1 Groundwater Elevation Monitoring ........................................... ..............................8
2.1.2 Groundwater Sampling Methods and Procedures ................... ..............................9
2.1.3 Recycling of Purge Water ........................................................ ..............................9
2.1.4 Groundwater Analytical Services ............................................. ..............................9
2.1.5 Summary of Fourth Quarter 2007 Groundwater Analytical Data ..........................
10
2.1.6 Quality Control Samples ......................................................... .............................10
2.2 First Quarter 2008 Groundwater Monitoring .................................. .............................10
2.2.1 Groundwater Elevation Monitoring .......................................... .............................10
2.2.2 Groundwater Sampling Methods and Procedures .................. .............................10
2.2.3 Recycling of Purge Water ....................................................... .............................10
2.2.4 Groundwater Analytical Services ............................................ .............................10
2.1.5 Summary of First Quarter 2008 Groundwater Analytical Data .............................11
2.2.6 Quality Control Samples ......................................................... .............................11
2.3 Compliance with AB 2886 .............................................................. .............................11
2.4 Discussion of Groundwater Monitoring Data .................................. .............................11
3.0 REMEDIATION STATUS REPORT .................................................. .............................12
3.1 Remedial System Operations — Thermal Oxidizer Mode ................ .............................13
3.2 Remedial System Operations - Thermal/Catalytic Mode ................ .............................14
3.3 Proposed Remediation System Modifications using Granular Activated Carbon .........
15
3.3.1 Air Sparge Compressor .......................................................... .............................16
3.4 Compliance with SJVAPCD Permit To Operate ............................. .............................16
3.5 Fuel Hydrocarbon Mass Removal Rates ........................................ .............................16
Remediation i
' Proiect Number 1803BK26 July 1. 2008
t3.6 Discussion of Remedial Efficiency 16
' 4.0 CONCLUSIONS ................................................................................ .............................17
5.0 RECOMMENDATIONS ..................................................................... .............................17
6.0 LIMITATIONS AND REPORT CERTIFICATION ............................... .............................18
n
E2C Pemediation
M
Project Number 1803BK26 July 1. 2008
LIST OF APPENDICES
Appendix A Fourth Quarter 2007 Groundwater Purge Data Sheets
Appendix B Fourth Quarter 2007 Groundwater Analytical Laboratory Report and Chain -of-
Custody
Appendix C First Quarter 2008 Groundwater Purge Data Sheets
Appendix D First Quarter 2008 Groundwater Analytical Laboratory Report and Chain -of-
Custody
Appendix E Purge Water Transport Manifests and Recycling Certificates
Appendix F GeoTracker Upload Confirmation Reports
E2C Pemediation iii
LIST OF FIGURES
Figure 1
Site Location Map
Figure 2
Site Plan
Figure 3A
Fourth Quarter 2007 Groundwater Gradient Plot
Figure 3B
First Quarter 2008 Groundwater Gradient Plot
Figure 4A
Fourth Quarter 2007 Benzene Distribution Plot
Figure 4B
First Quarter 2008 Benzene Distribution Plot
Figure 5A
Fourth Quarter 2007 TPHg Distribution Plot
Figure 5B
First Quarter 2008 TPHg Distribution Plot
Figure 6
Groundwater MtBE Concentration Trends
Figure 7
VE/AS /GAC Process Flow Diagram
LIST OF APPENDICES
Appendix A Fourth Quarter 2007 Groundwater Purge Data Sheets
Appendix B Fourth Quarter 2007 Groundwater Analytical Laboratory Report and Chain -of-
Custody
Appendix C First Quarter 2008 Groundwater Purge Data Sheets
Appendix D First Quarter 2008 Groundwater Analytical Laboratory Report and Chain -of-
Custody
Appendix E Purge Water Transport Manifests and Recycling Certificates
Appendix F GeoTracker Upload Confirmation Reports
E2C Pemediation iii
LIST OF TABLES
Table 1A
Summary of Fourth Quarter 2007 Groundwater Monitoring Data
Table 1 B
Summary of First Quarter 2008 Groundwater Monitoring Data
Table 2
Summary of Historical Groundwater Elevation Data
Table 3
Summary of Historical Groundwater Analytical Data
Table 4
Summary of VE /GASS Monitoring Data
Table 5
Summary of Hydrocarbon Mass Removed
Table 6
Summary of Influent Vapor Analytical Data
Table 7
Summary of Effluent Vapor Analytical Data
LIST OF APPENDICES
Appendix A Fourth Quarter 2007 Groundwater Purge Data Sheets
Appendix B Fourth Quarter 2007 Groundwater Analytical Laboratory Report and Chain -of-
Custody
Appendix C First Quarter 2008 Groundwater Purge Data Sheets
Appendix D First Quarter 2008 Groundwater Analytical Laboratory Report and Chain -of-
Custody
Appendix E Purge Water Transport Manifests and Recycling Certificates
Appendix F GeoTracker Upload Confirmation Reports
E2C Pemediation iii
Proiect Number 1803BK26 July 1. 2008
EXECUTIVE SUMMARY
On October 16, 2007 and January 17, 2008, E2C Remediation (E2C) conducted Fourth Quarter
2007 and First Quarter 2008 groundwater monitoring and sampling at the Minit Stop Market
located at 2900 Union Avenue, Bakersfield, California (Site) (see Figure 1). In addition, this
report documents the remediation status for the Site, including a recommendation to restart the
remedial using thermal means for treatment of effluent vapors. This report has been prepared
by E2C for Mr. Nassri Jaber to document site conditions as required by the State of California
Regional Water Quality Control Board — Central Valley Region, the Lead Regulatory Agency in
ongoing directive letters, most recently dated April 13, 2007.
Discussion of Groundwater Monitoring Data
The groundwater flow directions and gradients in the Fourth Quarter 2007 and First Quarter
2008 were consistent with interpreted historic flow directions and gradients.
Concentrations of dissolved -phase fuel hydrocarbons in groundwater in the Fourth Quarter
2007 were reported as non - detect at well MW -1, the Source Area monitoring well. In the First
Quarter 2008 COCs were reported as non - detect at well MW -1, except for TPHg being
detected at a concentration of 427 µg /L. At the upgradient (somewhat cross - gradient)
monitoring well (MW -4), fuel constituents of concern (COCs) of benzene, toluene, ethylbenzene
and xylene (BTEX) and Total Petroleum Hydrocarbons as gasoline (TPHg) have been reported
as non - detect for eleven (11) consecutive quarters. Similarly, at MW -2, located downgradient
and cross - gradient to the southwest, COCs have been reported as non - detect for fourteen (14)
consecutive quarters. At the furthest downgradient well (MW -5), sporadic low concentrations of
COCs were reported prior to August 2005. Since that time, all COCs have been reported as
non - detect at that well.
At MW -3, located downgradient of the Source Area, COCs were historically reported at
significant concentrations, which exhibited declining trends during the course of remedial
operations until concentrations reached non - detect in February 2006 and continued as non -
detect into May 2006. At the time of remedial system shut down in August 2006, BTEX and
TPHg concentrations rebounded at MW -3 and remained at relatively stable concentrations until
April 2007. As of July 2007, benzene was reported as non - detect at MW -3, however, TPHg,
toluene, and ethylbenzene were reported at their highest concentrations since March 2004.
Additionally, xylenes (total) were reported at their highest concentration to date at MW -3.
Concentrations of COCs have decreased at MW -3 since July 2007. For example TPHg
decreased from 55,000 µg /L in July 2007 to 14,000 µg/l_ in October 2007, before decreasing
further to 9,420 µg /L in January 2008.
This data indicates that remedial operations at the Site had been effective in reduction of
`source' mass in the Source Area vadose zone and in reduction of dissolved -phase components
in groundwater throughout the Site. However, it appears that rebound in dissolved hydrocarbon
concentrations have occurred in the area of well MW -3. The low to moderate levels of COCs
reported at MW -1 from the Fourth Quarter 2006 through the First Quarter 2008 indicate that
some minor residual `source' mass is present in the vadose zone in that area. Additionally, the
moderate levels of COCs at MW -3 in the groundwater indicate that a groundwater `source'
mass occurs in the area between MW -1 and MW -3 and may extend somewhat downgradient
from MW -3; however, this mass has not migrated very far offsite, as COCs are non - detect at
IE2C Remediation
Proiect Number 1803BK26 July 1. 2008
MW -5. The levels of COCs in the MW- 1 /MW -3 area will require additional remedial attention,
with the most appropriate measure being restart of the remedial system using thermal means
for the treatment of hydrocarbon vapors.
Note: 1,2- Dichloroethane (1,2 -DCA) and 1,2- Dibromomethane (a.k.a. ethylene dibromide)
(EDB), were reported as non - detect in groundwater at the Site since December 2004. The
analysis for 1,2 -DCA and EDB were discontinued per the RWQCB letter dated December 21,
2006. Additionally, MtBE has been reported as non - detect in groundwater from all wells at the
Site since August 2005. Finally, the other fuel oxygenates of di- isopropyl ether (DIPE), ethyl
tertiary-butyl ether (ETBE), tertiary-amyl methyl ether (TBA) and tertiary-butyl alcohol (a.k.a.
tert- butanol) (TBA) have been reported as non - detect at all wells for a minimum of twelve (12)
consecutive quarters.
Summary of Remediation Status
In early March 2006, influent concentrations remained low even after numerous cyclic
optimizing episodes. These low levels of extracted influent were not cost effective for continued
use of the thermal unit. As such, E2C notified the SJVAPCD of the intention to convert the
thermal unit to a thermal /catalytic unit. During the remainder of March 2006, and through most
of April 2006, the thermal unit was cycled off and modified for thermal /catalytic operation, which
commenced on April 20, 2006. The system was operated in thermal /catalytic mode until
August 2006 when it was found that influent concentrations had reduced to levels that
precluded efficient continued use of the thermal /catalytic unit on a full -time run basis.
Therefore, on August 2, 2006, the system was shut down pending an evaluation of the system
efficiency and to determine if any modifications could be made to the system to enable more
eff icient operations.
Prior to shutdown on August 2, 2006 the previous two (2) months of operational influent
laboratory analytical data indicated influent concentrations that averaged approximately 500
ppmV, with an average flow of approximately 175 SCFM, which equated to a removal rate of
approximately 24 to 33 Ibs /day (approximately 850 Ibs /month). Additionally, system cycling
data indicated, that following periods of shutdown, influent concentrations were lower than pre -
shutdown levels and on system restart after off - cycling periods, influent concentrations would
initially be high, however would rapidly decline. Finally, it was found that costs to operate this
system at these levels of influent were extremely disproportionate per pound of hydrocarbon
removal and did correlate well with the cost per pound of removal as indicated at other nearby
sites undergoing remediation. The utility costs (electricity and natural gas) necessary to
operate that system averaged $6,000.00 per month, which equated to approximately $38.00
per gallon of fuel removed. Note: At other nearby remedial sites, energy costs ranged from
$2,000 to $4,000 per month, depending on type of remedial activity.
As the energy costs seemed extraordinarily high, E2C contacted PG &E on two (2) occasions to
have PG &E verify these seemingly excessive costs and to verify that their lines were not
leaking. After extensive conversations with PG &E, PG &E affirmed that there were no leaks in
their lines and that their invoices were properly billed. E2C also performed extensive testing to
verify that there were no leaks in the site remedial system plumbing and the BF 250 and
associated equipment. None were found.
E2C Remediation
Project Number 1803BK26 July 1. 2008
Based on the above data, continued full -time use of the BF 250 in thermal /catalytic mode was
deemed infeasible. E2C then performed an evaluation to see if an electrical/catalytic oxidizer
unit could be utilized, which would eliminate the supplemental fuel costs, thus making the
remedial operation more efficient and more cost effective. Based on the influent concentrations
over the last few months of BF 250 operations, the concentrations were at the low end of the
range needed for efficient use of an electric /catalytic (ECAT) oxidizer. At the time, it appeared
that the time and expense necessary to meet the permitting requirements for the ECAT would
not be justified by the limited ECAT run time that could be expected prior to modification of the
remedial system to a granular activated carbon system (GAC) absorption system, which was
expected to be used near the end of remedial operations to polish residual fuel hydrocarbons.
It was found that carbon change -outs would occur frequently during the initial stages of GAC
operations, a GAC remedial system would be substantially more cost effective than operation of
either the BF 250 or the ECAT. However, as of July 2007, dissolved fuel hydrocarbon
concentrations appear to have rebounded in the area of well MW -3. The rebound of dissolved
fuel hydrocarbons now warrants restarting the remediation system. E2C anticipates restarting
the system in the near future. At this time, the use of GAC does not appear to be efficient or
cost effective for the treatment of effluent vapors. As such, the system should be restarted
using thermal catalytic means for the treatment of effluent vapors.
Conclusions
Based on the site assessment work, groundwater monitoring data and remedial operational
data obtained at the Site to date, E2C concludes the following:
• The average groundwater elevations beneath the Site increased an average of 0.52 foot
in the Fourth Quarter 2007 before decreasing 4.73 feet in the First Quarter 2008. The
groundwater flow directions were southeasterly, which were consistent with historic
groundwater flow directions and gradients;
• Remedial operations (using the VE/GASS) at the Site have been effective in removing
fuel hydrocarbons from the subsurface and in controlling migration of the groundwater
fuel hydrocarbon plume, evidenced by COCs being reported as non - detect for a
minimum of six (6) quarters at MW -2 and MW -5. Note: Prior to that, only sporadic low
concentrations of COCs were reported;
• MtBE, DIPE, ETBE, TAME and TBA have not been reported since the August 24, 2005
sampling event;
• Fuel hydrocarbon concentrations (BTEX and TPHg) in groundwater had shown
significant reductions across the Site since startup of the remediation system. However,
rebound in dissolved fuel hydrocarbon concentrations have occurred in the area of well
MW -3 since the system was shutdown in August 2006;
• Fuel, hydrocarbon mass removed, as of August 2, 2006, was calculated as
approximately 176,152 Ibs, or approximately 27,523 gallons; and
• Remedial system influent concentration averages indicated that the thermal /catalytic
oxidizer unit had reached the limit of its effectiveness for continual operations mode, and
that the time and costs necessary to modify the remedial system to an electric /catalytic
oxidizer were prohibitive. However, moderate concentrations of fuel hydrocarbons
remain in groundwater at the Site. As such, additional remedial operations are
necessary for the Site.
E2C Remediation 3
1 Proiect Number 1 BIQ6 July 1. 2008
IRecommendations
E2C makes the following recommendations based on the above conclusions and the data
presented in this report:
• Continue to monitor and sample groundwater at the Site on a quarterly basis;
'
• Analyze groundwater samples for BTEX and MtBE using EPA Method 8260b. Note:
Although MtBE has been reported as non- detect since August 2005, E2C recommends
that analysis for this analyte continue to verify that it does not rebound as high
concentrations were originally present in groundwater;
■ Restart the remedial system using a thermal catalytic treatment method; and
• Continue to submit groundwater monitoring reports and remediation status reports to the
Client, the RWQCB and the BFD on a quarterly basis.
u
ERC Remediation 4
Proiect Number 1803BK26 Juiv 1 2008
1.0 INTRODUCTION
On October 16, 2007 and January 17, 2008, E2C Remediation (E2C) conducted Fourth Quarter
2007 and First Quarter 2008 groundwater monitoring and sampling at the Minit Stop Market
located at 2900 Union Avenue, Bakersfield, California (Site) (see Figure 1). In addition, this
report documents the remediation status for the Site, including a recommendation to restart the
remediation system using thermal means for treatment of effluent vapors. This report has been
prepared by E2C for Mr. Nassri Jaber to document site conditions as required by the State of
California Regional Water Quality Control Board — Central Valley Region, the Lead Regulatory
Agency in ongoing directive letters, most recently dated April 19, 2007.
1.1 Site Description
The Site is a Texaco gasoline station and convenience store ( Minit Stop Market) located in
Bakersfield, California, at 2900 Union Avenue, on the northeast corner of Union Avenue and
Pacific Street (see Figure 1 for Site Location Map). The Site is located within the southwestern
quarter of the southwestern quarter of Section 20, Township 29 South, Range.28 East, and
MDBM. The Site is at an elevation of approximately 428 feet above Mean Sea Level (msl) and
the topography is relatively flat with a slight slope to the southwest.
The Minit Stop facility consists of a convenience store and a canopy- covered fueling area
consisting of one fueling island located west of the building. The lot covers an area of
approximately 14,950 square feet with one (1) structure of approximately 2,000 square feet in
the east center of the parcel. Formerly located at the Site were three (3) 10,000 - gallon
gasoline USTs, and four (4) multiple product dispensers (MPDs) on a single dispenser island
(also, two 5,000 - gallon gasoline USTs were abandoned in place). The former USTs were
located to the north and east of the present fueling area. Currently present at the Site are a
20,000 - gallon, doubled - walled, split- chambered UST and two (2) dual -sided MPDs on a single
dispenser island, with the 15,000 - gallon chamber used to store regular unleaded gasoline and
the 5,000 — gallon chamber used to store premium - unleaded gasoline.
The surrounding area consists of mixed industrial, commercial and residential uses along Union
Avenue. The sites directly adjacent to the subject property are described below:
• North: Located adjacent to the subject site is a service shop (Air - Draulics Sales and
Service);
• South: Pacific Street bounds the Site to the South and beyond is a general contractor
(Silver AC & Heating);
• East: An alley bounds the Site to the East and beyond is a single - family residence; and
• West: Union Avenue bounds the Site to the West and beyond are a canal and a storage
warehouse (Kern Ice & Cold Storage Co.).
1.2 Site Geology and Hydrology
1.2.1 Site Geology
The property is located in the south central area of the San Joaquin Valley where the Sierra
Nevada, Great Valley, and Coastal Range physiographic provinces meet. The southern end of
the Sierra Nevada Province is composed of a massive block of igneous and metamorphic rock
of Mesozoic age and older. This Sierran block, 40 to 100 miles wide and 400 miles long, slopes
five to seven degrees beneath the San Joaquin Valley. The Coastal Range province on the
west consists of tectonically deformed and fractured marine and non - marine sedimentary rocks
of Jurassic, Cretaceous, and Tertiary age, which dip eastward beneath the San Joaquin Valley.
E2C Remediation 5
PPr iect_Number 1803BK26 Ju/v 1
The Great Valley province is a broad asymmetrical synclinal trough, which is known as the
Sacramento Valley in the north and the San Joaquin Valley in the south. Beneath the southern
San Joaquin Valley floor, the Sierran plutonic and metamorphic rock block is overlain by
consolidated marine rocks of Jurassic and Cretaceous age. These rocks are overlain by
continental marine and non - marine sedimentary rocks of Tertiary age, which are comprised of
' continental deposits of consolidated to semi - consolidated, fossiliferous sandstone, siltstone,
and shale which thicken toward the south and west. The Tertiary rocks in turn, are overlain by
unconsolidated continental deposits, which consist of Pliocene to Holocene river and lake
' sediments of gravel, sand, silt, and clay.
Surface features of the floor of the San Joaquin Valley consist of dissected uplands, alluvial
' fans, overflow areas, and lake bottoms. Dissected uplands lie between the mountains and the
nearly flat Valley floor and are manifest in low -lying hills through which perennial and
intermittent streams flow. These features consist of reworked older alluvium. The alluvial fans
' are the sites of active stream deposition of sands and silts derived from the Sierra Nevada and
the dissected uplands. The overflow lands and lake bottoms lie in the central part of the Valley
where silt and clay accumulate in quiet lake and marsh environments.
' The Site lies in the northeast portion of the City of Bakersfield on a geomorphological feature
loosely termed "the Panorama Bluffs ". The Panorama Bluffs achieve an elevation of
approximately 900 feet mean sea level (MSL) and slope to the south - southwest. The
' Panorama Bluffs are a slightly tilted (uplifted) erosional remnant of the deposition along the
Kern River. The Kern River is located just north of the Bluffs at its base. The depositional
environment of the bluffs is alternating between high- energy deposition (gravel, cobbles, and
boulders) and low- energy deposition (silts and clays in overbank deposits).
The subsurface beneath the Site is characterized by interbedded silt, clayey silt, silty to clayey
sand, and sand with gravel and clay lenses. Beneath the Site, dense layers of gravel to
cobbles of weathered granite exist between depths of approximately 50 feet and 75 feet below
ground surface (bgs). Off the Site, in the downgradient direction at the location of MW -5,
' dense layers of gravels to cobbles of weathered granite exist between 30 feet and 75 feet, and
between 90 feet and 105 feet bgs, with a layer of fine to medium grain size sand (SP) between
them.
0 1.2.2 Site Hydrogeology
A broad, thick hydrogeologic unit consisting of soil and rock with varying porosity and
permeability underlies the Central Valley of California. Physical dimensions are approximately
50 miles wide at the widest point in the Valley, 400 miles long, and as much as 2,000 feet deep.
Recharge to regional aquifers consists of infiltration of seasonal precipitation and percolation of
surface waters. The Valley aquifer of greatest storage, highest quality, and greatest
accessibility for domestic and agricultural use consists of the alluvial and lacustrine continental
deposits extending to the depths of 1,500 to 2,000 feet beneath the San Joaquin Valley floor.
Lithologic and hydraulic properties of these sediments are largely the product of the sediment
source and the depositional environment. The sediments range in size from clays to boulders
and include all mixtures between the extremes. Western sediments are derived largely from
the Coastal Ranges, and tend to consist of shales and fine sandstones with limited
permeability. Eastern sediments are derived mainly from granitic materials of the Sierra
Nevada, and are generally coarser and much more permeable. Sediments encountered during
the borings at the Minit Stop site consisted of alluvial and fluvial deposits of interbedded silt,
E2C Remediation 6
Proiect Number 1803BK26 July 1
clayey silt, silty to clayey sand, and sand with gravel and clay lenses. Dense layers of
permeable, weathered granite gravel and cobbles exist between depths of approximately 50
' feet and 75 feet bgs.
Regionally, the depth to groundwater ranges between 200 and 220 feet below grade, according
to the 1996 Water Supply Report published by the Kern County Water Agency in July 2000.
During February 2002 drilling activities, first encountered groundwater was found at a depth of
approximately 120 feet bgs. During January 2003 drilling activities, first groundwater was also
encountered at a depth of approximately 120 feet. During July 2003 drilling activities, first
groundwater was also encountered at a depth of approximately 119 feet bgs. See Table 3 for a
summary of historical groundwater elevations.
' 1.3 Summary of Site History
On March 18, 1999, the City of Bakersfield Fire Department (BFD) (lead agency for the Site)
' issued a temporary closure permit for the Site. The underground storage tank upgrades had not
been completed and temporary closure was in effect as of that date. In March 2000 a Phase I
Environmental Site Assessment was performed.
In May 2000, three (3) 10,000- gallon USTs', and four (4) multiple product dispensers (MPDs)
on a single dispenser island and associated product piping were removed as follows.
■ Tank #1 — 10,000 - Gallon Gasoline (Removed - May 9, 2000)
• Tank #2 — 10,000 - Gallon Gasoline (Removed - May 9, 2000)
• Tank #3 — 10,000 - Gallon Gasoline (Removed - May 9, 2000)
Upon removal of the above tanks, two (2) additional 5,000 - gallon USTs were discovered to the
east of the three 10,000 - gallon USTs. The two (2) 5,000 - gallon USTs were abandoned in place
in accordance with KCEHD guidelines and KCEHD permitting.
■ Tank #4 — 5,000 - Gallon Gasoline (Abandoned in place)
■ Tank #5 — 5,000 - Gallon Gasoline (Abandoned in place)
At the time of tank removal, soil samples were collected from beneath the inverts at each end of
the USTs. Soil samples were also collected beneath each MPD. Three (3) hand -auger soil
borings (TK -4W, TK -5W, and TK -5E) were also slant - drilled beneath the inverts of the two (2)
5,000 - gallon newly discovered USTs, with soil samples collected at depths of 12 and 16 feet
bgs in each boring.
Elevated concentrations of adsorbed -phase Total Petroleum Hydrocarbons as gasoline (TPHg)
and the volatile aromatic compounds of benzene, toluene, ethyl benzene and total xylenes
(BTEX) were reported in soil samples at location TK -3E at depths of 14 and 18 feet bgs
beneath the eastern end of the southern 10,000 - gallon gasoline UST, and in soil sample TK-
4W-16 which was collected at a depth of 16 feet bgs beneath the western end of the western
5,000 - gallon USTs. The maximum concentrations for TPHg and BTEX were reported at
location TK -5E at the eastern 5,000 - gallon UST. Trace concentrations of benzene and the fuel
oxygenate of methyl tertiary-butyl ether (MtBE) were reported in soil sample TK -3E -14 collected
at a depth of 14 feet bgs beneath the eastern end of the southern 10,000 - gallon UST, but were
reported as non - detect at the 18 -foot depth at that same location. TPHg, BTEX, and MtBE
were reported as non - detect in the remaining twenty -three (23) soil samples analyzed. The
fueling facilities were subsequently upgraded with a 20,000 - gallon double - walled, split chamber
UST and two dual -sided MPDs on a single dispenser island.
E2C Remediation
Project Number 1803BK26 July 1. 2008
1.3.1 Site Assessment Status
Groundwater Monitoring Wells
To date, five (5) groundwater monitoring wells have been installed, four (4) onsite (MW -1
through MW -4) and one (1) offsite (MW -5). See Figure 2 for the monitoring well locations.
Vapor Extraction and Air Spar eq Wells
Three (3) double - completion (two separate screen intervals, shallow and deep) vapor extraction
(VE) wells and one (1) deep completion VE well have been installed at the Site. Four (4)
groundwater air sparge (AS) wells have also been installed.
Vapor Extraction Pilot Test Conclusions
A VE Pilot Test was conducted in March 2003. The site stratigraphy and lack of resistance to
flow (0.4- to 1.45- inch H2O at different wells) suggested that this site was an ideal candidate for
vapor extraction. The extremely high removal rates documented also suggested that this site
had a significant soil and groundwater on -site source (i.e., area requiring remediation). It was
calculated that the radius of influence for a full -scale remediation would be at a minimum 55
feet, and could exceed 70 feet. It was found that the use of well VE -3S tended to dilute the
influent vapor stream and should only be used during the initial stages of remediation. Use of
VE-1S and VE-1D yielded the highest influent concentrations, thus the focus of remediation
would be at these two (2) wells after 100% of the well field became utilized. Note: VE-1S and
VE-1D are located in the highest source area of soil and groundwater impaction. Therefore
these wells would yield the highest removal rates. It was estimated that hydrocarbon removal
rates initially could be greater than 1,000 Ibs /day, with a subsequent decrease as remedial
operations progressed.
Surrounding Area Well Survey
Research of the surrounding area identified six (6) water supply wells and two (2) surface water
bodies within a 2,500 -foot radius of the Site.
1 2.0 GROUNDWATER MONITORING
t Depths to groundwater were measured and groundwater samples were collected from site
monitoring wells as part of Fourth Quarter 2007 and First Quarter 2008 monitoring events. The
depths to groundwater were used to calculate groundwater elevations and interpret the
I' groundwater flow direction and gradient. The groundwater samples were chemically analyzed
to evaluate groundwater chemical conditions.
' 2.1 Fourth Quarter 2007 Groundwater Monitoring
On October 16, 2007 E2C conducted Fourth Quarter 2007 groundwater monitoring and
sampling at the Site.
2.1.1 Groundwater Elevation Monitoring
Each well (MW -1 through MW -5) was evaluated, using a clear bailer, for the presence of free-
' product, and none was identified. The depth to groundwater was then measured at each well to
the nearest one - hundredth (0.01) of a foot, using a Solinst water level indicator. Measurements
were made at the north side of the top of casing. The Solinst water level indicator, and
' attached measuring tape, were washed in Alconox solution and were then double rinsed in
clean potable water prior to use at each well. Depth to groundwater measurements are
summarized in Table 1 A and with historical data in Table 3.
E2C Remediation 8
Protect Number 1803BK26 July 1. 2008
Based on the October 2007 measurements, the overall groundwater elevation rose an average
of 0.52 foot in the Fourth Quarter 2007, as compared to the Third Quarter 2007 and
groundwater flow was interpreted as southeasterly at a gradient of 0.029 ft/ft (see Figure 3A).
The groundwater flow direction and gradient were consistent with historic interpreted flow
directions and gradients.
Note: Groundwater flow and gradient beneath the Site may be influenced by recharge from the
nearby canal. The canal is unlined and parallels Union Avenue along its west side. Stream
flow in the canal is southerly.
2.1.2 Groundwater Sampling Methods and Procedures
Groundwater at all monitoring wells was purged using a battery- operated pump or a hand
bailer. At least 3 casing volumes of groundwater was removed from each well prior to
sampling. Casing volume is calculated by multiplying the height of the freestanding water
column in the well by the cross - sectional area of the well casing. The temperature, pH and
conductivity of the water were measured periodically as water was pumped from the wells to
ensure sufficient purging, as indicated by stable measurements on field instruments. At each
well, when measurements from the field instruments stabilized to within 10% of the previous
measurement during purging, groundwater in the well was considered representative of the
aquifer, a groundwater sample was collected. A purge data sheet for each well is included in
Appendix A.
Each groundwater sample was collected using a new disposable bailer. Liquid in the bailer was
decanted into two 40- milliliter volatile organic analysis (VOA) vials. Each sample container was
sealed using a tight fitting Teflon -lined screw cap. Care was taken so that no headspace or
bubbles existed after sealing each VOA with the cap. All samples were labeled and
documented on a chain of custody record immediately after sealing. After the documentation
was complete, the samples were placed into an iced cooler maintained at 4° Centigrade for
transport to the analytical laboratory.
' All downhole equipment was cleaned prior to use by washing with an Alconox solution and
double rinsing clean potable water.
2.1.3 Recycling of Purge Water
Groundwater sampling purge water was transported to Remedy Environmental Services of
Bakersfield, California for recycling. Transport manifests and recycling certificates are
presented in Appendix E.
' 2.1.4 Groundwater Analytical Services
Groundwater samples were transported under Chain -of- Custody and were analyzed at ProVera
' Analytical Laboratories, Inc. (ProVera) (California State - Certified analytical laboratory #2606) in
accordance with State guidelines and EPA protocols. The samples were analyzed for the
following fuel hydrocarbons using the appropriate EPA Method:
• BTEX using EPA Method 8260b;
■ The fuel oxygenates of MtBE, di- isopropyl ether (DIPE), ethyl tertiary-butyl ether
(ETBE), tertiary-amyl methyl ether (TBA) and tertiary -butyl alcohol (a.k.a. tert- butanol)
(TBA) using EPA Method 8260b;
■ TPHg using EPA Method 8015M; and
■ The reporting limits for BTEX and the fuel oxygenates were 0.5 µg/L (TBA at 2.5 Itg /L)
' and 50 µg /L for TPHg.
IE2C Remediation
Protect Number 1803BK26 July 1. 2008
2.1.5 Summary of Fourth Quarter 2007 Groundwater Analytical Data
A summary of reported concentrations in groundwater samples follows:
• Benzene was reported as non - detect in all wells (See Figure 4A);
• TPHg was reported at one (1) well (MW -3), at a concentrations of 14,000 4g/L at MW -3
(14,000 µg/l_ in duplicate)(See Figure 5A);
• Toluene was reported at one (1) well, at a concentration of 2.5 µg/l_ at MW -3 (2.5 gg /L
in duplicate);
• Ethylbenzene was reported at one (1) well, at a concentration of 190 µg /L at MW -3
(190 µg /L in duplicate);
• Xylenes were reported at one (1) well, at a concentration of 190 µg /L at MW -3 (190 µg /L
in duplicate); and
• MtBE, TBA, DIPE, EtBE, TAME, 1,2 -DCA and EDB were reported as non - detect in all
groundwater samples collected this quarter. .
■ 2.1.6 Quality Control Samples
The duplicate sample collected from well MW -3 was reported to contain similar or identical
concentrations of COCs as the primary sample from that well. The trip blank was reported as
non - detect for any of the COCs at their respective detection limits, and the laboratory control
samples all had recoveries within acceptable ranges. These results indicated that the analytical
' data are usable and are of adequate quality and reproducibility to satisfy data validity
requirements.
' 2.2 First Quarter 2008 Groundwater Monitoring
On January 17, 2008 E2C conducted First Quarter 2008 groundwater monitoring and sampling
at the Site.
' 2.2.1 Groundwater Elevation Monitoring
Each well (MW -1 through MW -5) was evaluated as described in Section 2.1.1. Depth to
groundwater measurements are summarized in Table 1 B and with historical data in Table 3.
Based on the January 2008 measurements, the overall groundwater elevation decreased an
' average of 4.73 feet in the First Quarter 2008, as compared to the Fourth Quarter 2007 and
groundwater flow was interpreted as southeasterly at a gradient of 0.025 ft/ft (see Figure 3B).
The groundwater flow direction and gradient were consistent with historic interpreted flow
directions and gradients.
2.2.2 Groundwater Sampling Methods and Procedures
Groundwater sampling methods and procedures are described in Section 2.1.2. A purge data
sheet for each well is included in Appendix C.
2.2.3 Recycling of Purge Water
' Groundwater sampling purge water was transported to Remedy Environmental Services of
Bakersfield, California for recycling. Transport manifests and recycling certificates are
presented in Appendix E.
2.2.4 Groundwater Analytical Services
Groundwater samples were analyzed as described in Section 2.1.4.
E2C Remediation 10
Proiect Number 1803BK26 July 1 2008
2.1.5 Summary of First Quarter 2008 Groundwater Analytical Data
A summary of reported concentrations in groundwater samples follows:
■ Benzene was reported as non - detect in all wells (See Figure 4B);
• TPHg was reported at two (2) wells, at concentrations of 427 gg /L at MW -1 and 9,420
µg /L at MW -3 (9,440 gg /L in duplicate)(See Figure 5B);
• Toluene was reported at one (1) well, at a concentration of 49 lag /L at MW -3 (48.2 µg /L
in duplicate);
• Ethylbenzene was reported at one (1) well, at a concentration of 133 lag /L at MW -3
(134 µg /L in duplicate);
• Xylenes were reported at one (1) well, at a concentration of 242 4g /L at MW -3 (239 gg /L
in duplicate); and
• MtBE, TBA, DIPE, EtBE, TAME, 1,2 -DCA and EDB were reported as non - detect in all
groundwater samples collected this quarter.
■ 2.2.6 Quality Control Samples
The duplicate sample collected from well MW -3 was reported to contain similar or identical
concentrations of COCs as the primary sample from that well. The trip blank was reported as
non - detect for any of the COCs at their respective detection limits, and the laboratory control
samples all had recoveries within acceptable ranges. These results indicated that the analytical
1 data are usable and are of adequate quality and reproducibility to satisfy data validity
requirements.
2.3 Compliance with AB 2886
Groundwater analytical data for this quarter have been uploaded to the GeoTracker data base
in accordance with State of California Assembly Bill 2886 (AB 2886). Groundwater elevation
data have also been uploaded to the data base. Finally, a copy of this status report has also
been uploaded to the data base. Appendix F contains copies of the available upload
confirmation reports through the First Quarter 2008. Any upload confirmation reports not
included in this report will be included in the next quarterly status report.
2.4 Discussion of Groundwater Monitoring Data
The groundwater flow directions and gradients in the Fourth Quarter 2007 and First Quarter
2008 were consistent with interpreted historic flow directions and gradients.
Concentrations of dissolved -phase fuel hydrocarbons in groundwater in the Fourth Quarter
2007 were reported as non - detect at well MW -1, the Source Area monitoring well. In the First
Quarter 2008 COCs were reported as non - detect at well MW -1, except for TPHg being
detected at a concentration of 427 gg /L.
At the upgradient (somewhat cross - gradient) monitoring well (MW -4), fuel constituents of
concern (COCs) of benzene, toluene, ethylbenzene and xylene (BTEX) and Total Petroleum
Hydrocarbons as gasoline (TPHg) have been reported as non - detect for eleven (11)
consecutive quarters. Similarly, at MW -2, located downgradient and cross - gradient to the
southwest, COCs have been reported as non - detect for fourteen (14) consecutive quarters.
At the furthest downgradient well (MW -5), sporadic low concentrations of COCs were reported
prior to August 2005. Since that time, all COCs have been reported as non - detect at that well.
Remediation i 1
Proiect Number 1803BK26 July 1 2008
At MW -3, located downgradient of the Source Area, COCs were historically reported at
significant concentrations, which exhibited declining trends during the course of remedial
operations until concentrations reached non - detect in February 2006 and continued as non -
detect into May 2006. At the time of remedial- system shut down in August 2006, BTEX and
TPHg concentrations rebounded at MW -3 and remained at relatively stable concentrations until
April 2007. As of July 2007, benzene was reported as non - detect at MW -3, however, TPHg,
toluene, and ethylbenzene were reported at their highest concentrations since March 2004.
Additionally, xylenes (total) were reported at their highest concentration to date at MW -3.
Concentrations of COCs have decreased at MW -3 since July 2007. For example TPHg
decreased from 55,000 µg /L in July 2007 to 14,000 µg/l_ in October 2007, before decreasing
further to 9,420 µg /L in January 2008 (See Table 3).
This data indicates that remedial operations at the Site had been effective in reduction of
`source' mass in the Source Area vadose zone and in reduction of dissolved -phase components
in groundwater throughout the Site. However, it appears that rebound in dissolved hydrocarbon
concentrations have occurred in the area of well MW -3. The low to moderate levels of COCs
reported at MW -1 from the Fourth Quarter 2006 through the First Quarter 2008 indicate that
some minor residual `source' mass is present in the vadose zone in that area. Additionally, the
moderate levels of COCs at MW -3 in the groundwater indicate that a groundwater `source'
mass occurs in the area between MW -1 and MW -3 and may extend somewhat downgradient
from MW -3; however, this mass has not migrated very far offsite, as COCs are non - detect at
MW -5. The levels of COCs in the MW- 1 /MW -3 area will require additional remedial attention,
with the most appropriate measure being restart of the remedial system using thermal means
for the treatment of hydrocarbon vapors.
Note: 1,2- Dichloroethane (1,2 -DCA) and 1,2- Dibromomethane (a.k.a. ethylene dibromide)
(EDB), were reported as non - detect in groundwater at the Site since December 2004. The
analysis for 1,2 -DCA and EDB were discontinued per the RWQCB letter dated December 21,
2006. Additionally, MtBE has been reported as non - detect in groundwater from all wells at the
Site since August 2005. Finally, the other fuel oxygenates of di- isopropyl ether (DIPE), ethyl
tertiary-butyl ether (ETBE), tertiary-amyl methyl ether (TBA) and tertiary-butyl alcohol (a.k.a.
tert - butanol) (TBA) have been reported as non - detect at all wells for a minimum of twelve (12)
consecutive quarters.
3.0 REMED/ATION STATUS REPORT
During the period of April 9, 2004 through August 6, 2006, remedial operations at the Site were
conducted using a combined vapor extraction/groundwater air sparging system (VE/GASS).
The groundwater air sparging components performed two (2) functions: 1) increased dissolved
oxygen in groundwater to enhance microbial degradation processes, and 2) mechanically
stripped hydrocarbons (volatilization process). Upon volatilization, the hydrocarbons rose and
were collected via the vapor extraction system. The vapor extraction system also removed
hydrocarbons from the vadose zone. Extracted hydrocarbons were then routed in a vapor
stream to a thermal treatment unit.
Extraction of the hydrocarbons occurs via remediation wells consisting of three (3) multiple -
completion vapor extraction (VE) wells (VE -1 D/1 S, VE- 2D /2S, and VE- 3D /3S)], one (1) deep
completion VE well (VE -4), and four (4) air sparge wells (AS wells) plumbed to manifolds
located in the onsite equipment compound. See Figure 2, Site Plan, for the location of the AS
wells, VE wells and the onsite remediation equipment compound.
EZC Remediation 12
Project Number 1803BK26 July 1. 2008
In September 2003, the SJVAPCD issued the Permit to Operate (PTO) for the remedial
equipment. On April 29, 2004, after the installation gas and electrical services by PG &E, the
remediation system (utilizing a Baker Furnace 250 -CFM Thermal Oxidizer (BF 250) for effluent
vapor treatment), was brought on line. On April 26, 2006, the system was switched over to
Thermal /Catalytic mode for the treatment of effluent vapors. The system operated in
Thermal /catalytic mode until August 20, 2006. The remediation system was to be modified to
treat effluent vapors using granular activated carbon (GAC). However, the rebound of
dissolved COC concentrations in 2007 precludes the efficient use of GAC at this time. A
description of remedial systems operations is presented below.
3.1 Remedial System Operations — Thermal Oxidizer Mode
For initial site remediation, E2C utilized the BF 250, which was designed to be modified in the
field for use with a modular catalytic cell when fuel hydrocarbon concentrations declined and
stabilized at or below 2,000 parts per million by volume (ppmV). The unit's minimum operating
temperature in thermal mode was 1,400 deg. F, and its minimum operating temperature in
catalytic mode was 600 deg. F. These temperatures were set to ensure cost effective vapor
oxidation. The unit was equipped with a positive displacement (PD) vapor extraction blower.
For improved reliability and safety, the valve controls, actuators, and components were
controlled by a relay logic system. The unit was equipped with a water knockout pot, automatic
air dilution, a noise - reducing muffler, and a blower sound reducing enclosure. This equipment
was designed to shut down and lock out in the event of a system malfunction. The various
safety features included sensors to detect high and low oxidizer bed temperatures, high and low
blower pressure, high intake LEL, high and low air pressure, high and low exhaust temperature,
and water knockout malfunction. The manufacturer's specifications for this remediation unit
indicate that this unit has 99% (minimum) destruction efficiency.
During remediation system operations, the remediation equipment was typically monitored on a
weekly basis to perform routine maintenance, to record oxidizer parameters (temperature, flow
rate and operating hours), to measure and document influent and effluent hydrocarbon
concentrations and to optimize the wellfield. Although the oxidizer parameters were
continuously recorded digitally on a Zip disk, weekly monitoring of these parameters verified
continued accuracy of the measuring devices. Hydrocarbon concentrations were measured
with a portable hydrogen flame ionization detector (FID) and the data is used in applicable
formulas to calculate hydrocarbon mass removal rates (on both a monthly and on a cumulative
basis). Adjustments were continually made to the configuration of the unit to maximize vapor
flow from the wellfield, while maintaining the chamber temperature above 1,400 degrees
Fahrenheit ( °F) (as required in the SJVAPCD permit) and keeping the chamber temperature
below the manufacturer's recommended temperature limit of 1,850 OF in the stack. The
wellfield was optimized on a weekly basis (i.e., control valves are opened and closed to achieve
the highest influent concentration possible).
Due to declining influent concentrations, E2C instituted a cycling program to promote fuel
hydrocarbon rebound, which resulted in improved efficiency in removal costs. E2C cycled the
thermal unit off for the periods of October 31, 2005 through November 11, 2005 and November
28 through December 12, 2005. E2C continued to enhance rebound by cycling the thermal unit
off from February 7, 2006 through March 6, 2006.
E2C Remediation 13
Proiect Number 1803BK26 July 1 2008
It should be noted that as of July 2007, the rebound of dissolved COC concentrations is
sufficient to warrant restarting the remedial system using thermal means for the treatment of
extracted vapors. The RWQCB in verbal communication with E2C concurs with this conclusion.
As such, E2C anticipates that the remedial system using thermal treatment will be restarted in
the near future.
3.2 Remedial System Operations - Thermal /Catalytic Mode
In early March 2006, influent concentrations remained low even after numerous cyclic
optimizing episodes. These low levels of extracted influent were not cost effective for continued
use of the thermal unit. As such, E2C notified the SJVAPCD of the intention to convert the
thermal unit to a thermal /catalytic unit. During the remainder of March 2006, and through most
of April 2006, the thermal unit was cycled off and modified for thermal /catalytic operation, which
commenced on April 20, 2006. The system was operated in thermal/catalytic mode until
August 2006 when it was found that influent concentrations had reduced to levels that
precluded efficient continued use of the thermal/catalytic unit on a full -time run basis.
Therefore, on August 2, 2006, the system was shut down pending an evaluation of the system
efficiency and to determine if any modifications could be made to the system to enable more
efficient operations.
Prior to shutdown on August 2, 2006 the previous two (2) months of operational influent
laboratory analytical data indicated influent concentrations that averaged approximately 500
ppmV, with an average flow of approximately 175 SCFM, which equated to a removal rate of
approximately 24 to 33 Ibs /day (approximately 850 Ibs /month). Additionally, system cycling
data indicated, that following periods of shutdown, influent concentrations were lower than pre -
shutdown levels and on system restart after off - cycling periods, influent concentrations would
initially be high, however would rapidly decline. Finally, it was found that costs to operate this
system at these levels of influent were extremely disproportionate per pound of hydrocarbon
removal and did not match up to cost per pound of removal as indicated at other nearby sites
undergoing remediation. The utility costs (electricity and natural gas) necessary to operate that
system averaged $6,000.00 per month, which equated to approximately $38.00 per gallon of
fuel removed. As these energy costs seemed extraordinarily high, E2C contacted PG &E on two
(2) occasions to have PG &E verify these seemingly excessive costs and to verify that their lines
were not leaking. After extensive conversations with PG &E, PG &E affirmed that there were no
leaks in their lines and that their invoices were properly billed. E2C also performed extensive
testing to verify that there were no leaks in the site remedial system plumbing and the BF 250
and associated equipment. None were found.
Based on the above data, continued full -time use of the BF 250 in thermal/catalytic mode was
deemed infeasible. E2C then performed an evaluation to see if an electrical /catalytic oxidizer
unit could be utilized, which would eliminate the supplemental fuel costs, thus making the
remedial operation more efficient and more cost effective. Based on the influent concentrations
over the last few months of BF 250 operations, the concentrations were at the low end of the
range needed for efficient use of an electric /catalytic (ECAT) oxidizer.
At the time it appeared the expense necessary to meet the permitting requirements for the
ECAT would not be justified by the limited ECAT run time that could be expected prior to
modification of the remedial system to a granular activated carbon system (GAC) absorption
system, which would be used near the end of remedial operations to polish residual fuel
hydrocarbons.
E2C Aemediation 14
Project !Number 1803BK26 July 1. 2008
Although, it was found that carbon change -outs would occur frequently during the initial stages
of GAC operations, a GAC remedial system would be substantially more cost effective than
operation of either the BF 250 or the ECAT.
3.3 Proposed Remediation System Modifications using Granular Activated Carbon
In E2C's report Fourth Quarter 2006 Groundwater Monitoring and Remediation Status Reports,
dated January 18, 2007, it was recommended that the existing remediation system be modified
to operate using GAC for effluent control. The RWQCB, with their letter dated April 13, 2007,
approved the request for modification of the system. A brief description of proposed
modifications to the remediation system is presented below. Note: It should be noted that
dissolved COC have rebounded to high enough concentrations that the efficient use of GAC is
not possible at this time. Based on current dissolved COC concentrations, operation of the
remedial system using thermal treatment is the most appropriate measure until dissolved COC
concentrations once again decrease. However, the discussion presented below is applicable to
the time when dissolved COC concentrations are again low enough to warrant the proposed
use of GAC.
V E/GAC
The proposed new emissions control unit will consist of a vapor phase granular activated
carbon treatment unit (see Figure 7 for VE/AS /GAC Process Flow Diagram). The equipment is
skid mounted and consists of an entrainment liquid separator, float switches and entrainment
water pump, electrical control panel with main power switch and hour meter, vacuum pump and
motor, two (2) 1,000 lb. carbon canisters in series filled with granulated activated carbon, one
(1) 1,000 lb. carbon canister held in reserve, direct read flow meter, influent and effluent
sampling ports for each carbon canister. The units are designed to achieve 100% adsorption
efficiency. The calculated removal rate at startup, based on a flow rate of 140 scfm and influent
concentration of 600 ppmV, is 27 pounds per day. Influent concentrations are likely to be much
lower at the time that GAC is actually utilized for vapor treatment.
E2C will operate and monitor the GAC system in accordance with the conditions stipulated in a
(SJVAPCD) PTO to verify that emissions are within the permitted limits. It is anticipated that
the remediation system will be restarted after a modified PTO is received from the SJVAPCD
and after the carbon vessels are installed at the Site.
Carbon Change -Out
Based on the removal rate of 27 pounds per day, the initial calculated carbon utilization rate is
135 to 189 pounds per day. This calculation is based on an approximate carbon utilization rate
of 5 to 7 pounds of 5/8 — inch coconut -shell vapor phase carbon per pound of hydrocarbon.
This is calculated from carbon isotherms. Projected breakthrough of the first 1,000 -pound
carbon canister is, therefore, between 5.3 and 7.4 days (10.6 to 14.8 days for 2,000 Ibs). As
such, it is estimated that carbon (2,000 Ibs) will require changing twenty -four (24) times in a
one -year period, which is not an efficient or cost effective use of GAC. The estimated GAC
usage will be re- calculated at the time GAC is actually utilized. As influent concentrations are
expected to be much lower at that time, daily removal rates will also be much lower, thereby
extending GAC usage time. Carbon usage can also be extended by reducing influent flow
rates.
E2C Remediation 15
Project Number 1803BK26 July 1. 2008
3.3.1 Air Sparge Compressor
Groundwater air sparging was and will be conducted via an Ingersol -Rand 10 -hp air
compressor. Needle valve flow controllers, which are set in an air sparge manifold at the
equipment compound, control the airflow to the microporous sparge points set at the bottom of
the AS wells. Flow of air is optimized during each weekly site visit so that the maximum air
pressure available is introduced evenly to all AS wells and into the groundwater.
3.4 Compliance with SJVAPCD Permit To Operate
Ongoing San Joaquin Valley Air Pollution Control District (SJVAPCD) Permit To Operate (PTO)
compliance has been demonstrated during regular Site visits by measuring the VOC
concentrations in the influent and effluent streams using a PID or FID and collection and
i .
chemical _an_alyses _ of_Tedlar@ bag samples. Based_ on TedlarO bag data from January 2005
until August 2006, the system destruction has averaged 99.99% (see Tables 6 and 7 for
' summaries of Tedlar® bag influent and effluent laboratory data), which meets PTO conditions.
Field records, including sampling results, cumulative runtime, flow rate and catalytic oxidizer
temperature, were and will be maintained and retained for a minimum of two (2) years. System
operation temperature was maintained at a minimum of 1,400 degrees Fahrenheit ( °F) in the
combustion chamber of the thermal oxidizer through March 7, 2006.
On March 7, 2006, E2C, submitted a Vapor Extraction System Modification Notification (PTO #
S- 4205 -1 -0) to the SJVAPCD. E2C notified the SJVUAPCD that the BF 250 unit would be
modified to operate in thermal/catalytic mode due to decreasing influent concentrations at the
site. The modified unit incorporated a catalytic cell and the minimum operating temperature for
the combustion chamber of the thermal/catalytic oxidizer was maintained at or above 600
degrees Fahrenheit. On April 20, 2006, thermal/catalytic operations commenced and were
' terminated on August 2, 2006.
At the time the remedial system will be modified to use GAC for the treatment of effluent
vapors, an application will be made to the SJVUAPCD to modify the existing PTO to meet the
requirements of the SJVAPCD.
' 3.5 Fuel Hydrocarbon Mass Removal Rates
The first method to calculate mass removal rates uses a straight -line extrapolation of influent
measurements based on actual hourly run -time. Based on this method, the mass of fuel
' hydrocarbons removed from startup through August 2, 2006 can be calculated at approximately
171,315 Ibs (see Table 4A). The second method to calculate mass removal uses the average
influent concentrations over the average daily run -time per month. Based on this method, the
total mass of fuel hydrocarbons removed from startup through the August 2, 2006 can be
calculated at approximately 180,990 Ibs (see Table 5). The average of the above two (2)
methods (176,152 Ibs) provides a conservative estimate of the total mass removed.
3.6 Discussion of Remedial Efficiency
VE/GASS operational data indicated that influent concentrations to the system declined to a
point that did not justify operating the thermal /catalytic unit in the continuous mode. After
restart of the thermal /catalytic unit on April 20, 2006, the influent concentrations, based on
Tedlar® bag data, declined to less than 1,000 ppmV, even in the cycling operational mode.
E2C conducted several cycling events of varying duration, and influent concentrations failed to
i rebound, as follows:
1 E2C Remediation 16
Proiect Numbe 1803BK26 July 1 2008
■ 10/31/05 (Influent = 2,350 ppmV) to 11/11/05 (Influent = 1,850 ppmV);
■ 11/28/05 (Influent = 1,589 ppmV) to 12/12/05 (Influent = 1,825 - declined to 1,000
ppmV); and
■ 2/7/06 (Influent = 2,850 ppmV) to 3/3/06 (Influent = 4,450 ppmV — declined to 512
ppmV)
The declining influent concentration combined with the excessive energy costs indicated that
use of an oxidizer unit was no longer efficient, or cost effective for the Site.
4.0 CONCLUSIONS
Based on the site assessment work, groundwater monitoring data and remedial operational
data obtained at the Site to date, E2C concludes the following:
• The average groundwater elevations beneath the Site increased an average of 0.52 foot
in the Fourth Quarter 2007 before decreasing 4.73 feet in the First Quarter 2008. The
groundwater flow directions were southeasterly, which were consistent with historic
groundwater flow directions and gradients;
• Remedial operations (using the VE/GASS) at the Site have been effective in removing
fuel hydrocarbons from the subsurface and in controlling migration of the groundwater
fuel hydrocarbon plume, evidenced by COCs being reported as non - detect for a
minimum of six (6) quarters at MW -2 and MW -5. Note: Prior to that, only sporadic low
concentrations of COCs were reported;
• MtBE, DIPE, ETBE, TAME and TBA have not been reported since the August 24, 2005
sampling event;
• Fuel hydrocarbon concentrations (BTEX and TPHg) in groundwater had shown
significant reductions across the Site since startup of the remediation system. However,
rebound in dissolved fuel hydrocarbon concentrations have occurred in the area of well
MW -3 since the system was shutdown in August 2006;
• Fuel hydrocarbon mass removed, as of August 2, 2006, was calculated as
approximately 176,152 Ibs, or approximately 27,523 gallons; and
• Remedial system influent concentration averages indicated that the thermal /catalytic
oxidizer unit had reached the limit of its effectiveness for continual operations mode, and
that the time and costs necessary to modify the remedial system to an electric /catalytic
oxidizer were prohibitive. However, moderate concentrations of fuel hydrocarbons
remain in groundwater at the Site. As such, additional remedial operations are
necessary for the Site.
5.0 RECOMMENDATIONS
E2C makes the following conclusions based on the above conclusions and the data presented
in this report:
■ Continue to monitor and sample groundwater at the Site on a quarterly basis;
• Analyze groundwater samples for BTEX and MtBE using EPA Method 8260b. Note:
Although MtBE has been reported as non - detect since August 2005, E2C recommends
that analysis for this analyte continue to verify that it does not rebound as high
concentrations were originally present in groundwater;
• Restart the remedial system using a thermal catalytic treatment method; and
E2C Remediation 17
Proiect Number 1603BK26 July 1. 2008
■ Continue to submit groundwater monitoring reports and remediation status reports to the
Client, the RWQCB and the BFD on a quarterly basis.
6.0 LIMITATIONS AND REPORT CERTIFICATION
E2C performed this investigation in accordance with the generally accepted standards of care
existing in California of this time. It should be recognized that definition and evaluation of
geologic conditions is a 'difficult -and inexact science. Judgments leading to conclusions and
recommendations are generally made with limited knowledge of subsurface conditions present..
No warranty, expressed or implied, is made.
This report has been prepared by E2C under the. professional supervision of the registered
professional whose seal and signature appear herein. The conclusions of this report are based
solely, on the Scope of Services outlined and the sources of _information referenced in this.
report. Any additional information that becomes available concerning the Site should be
submitted to E2C so that our conclusions may be reviewed and modified, if necessary. This
:report was prepared for the sole use of Mr. Nassri Jaber and /or agent(s), the RWQCB, and the
BFD.
Prepared By:
ODROG
O
i w DANIEL J,
HIDALGO -`
NO. 854 •
Daniel Hidalgo
Senior Hydrogeologist c of f JAL, 0
C.H.G. #659 Reg. Ex. 6 -30-09
Reviewed By:
314
William Lawson, P. 1
Director of Technical Aerations
E2C Remediation 18
Pmwt Number 1603BK26 July 1. 2008
FIGURES
Figure 1
Site Location Map
Figure 2
Site Plan
Figure 3A
Fourth Quarter 2007 Groundwater Gradient Plot
Figure 3B
First Quarter 2008 Groundwater Gradient Plot
Figure 4A
Fourth Quarter 2007 Benzene Distribution Plot
Figure 4B
First Quarter 2008 Benzene Distribution Plot
Figure 5A
Fourth Quarter 2007 TPHg Distribution Plot
Figure 5B
First Quarter 2008 TPHg Distribution Plot
Figure 6
Groundwater MtBE Concentration Trends
Figure 7
VE /AS /GAC Process Flow Diagram
E2C Remediation Figures
I AS -1
VE -2S -2101 M UST MW-4
MW -1
V E -1 S-1 D � �
Fuel
Dispensers Remediation
AS4 Equipment
Compound
VE -3S3DM
MW
I I ,a -2
C
z
O
z
M
z
C
M
A
M
z
r
z
M
U 40 FT
SCALEi
LEGEND
MW-1 Groundwater Monitoring
Well Location
AS -1 Air Sparge Well Location
0
VE Vapor Extraction Well Location
M
AS -3 MW-3 AS-4 VE-4
N Q� M 11111111
PACIFIC STREET
MINIT STOP MARKET
EC Remediation 2900 NORTH UNION AVE FIGURE
5300 Woodmere Dr., Suite 105 BAKERSFIELD, CALIFORNIA
Bakersfield, CA 93313
- Phone: (661) 831 -6906 SITE PLOT 2
Fax: (661) 831 -6234
Fuel
Dispensers
C
z
0
z
M
z
C
M
n
M
z
m
0 40 FT
SCALE
MW -1
I EGENn
Groundwater Monitoring
Well Location with Groundwater
n
Elevation in Feet Above Mean
11.09
Sea Level (MSL)
,1%
Groundwater Elevation Contour
in Feet Above MSL (dashed whet
00`
approximate, queried where
/n
unknown)
AS -1
Air Sparge Well Location
VE
Vapor Extraction Well Location
AS-1
UST
n
MW-4
I
�
11.09
10.45
MW -1
/n
VE- 1S -1D11111111 Q
/
1190
00,
/
Remediation
AS -2
/
Equipment
/
Compound
IS -3D M
10�
n
MW -2 ♦ ♦
/
is ♦
/
10.20 i
/
MW�3
AS-3
/
90W
9.16iii�
. AS-4
M VE-4
/
n
00 O /
Z .10 .' $O
\01 -*
/ /PACIFIC STREET —
Z�
0 /
G7
O�
00/ Old
Gf`
I O
. ro
n/
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/
/
MW -5
iii 4.14
MINIT STOP MARKET
EC Remediation 2900 NORTH .UNION AVE FIGURE
5300 Woodmere Dr., Suite 105 BAKERSFIELD, CALIFORNIA
Bakersfield, CA 93313
hone: (661) 831 -6906 FOURTH QUARTER 2007 3A
Fax: (661 831 -6234 GROUNDWATER GRADIENT PLOT
I AS -1
VE -2S -213 M UST MW-4
2
10.61 �`t 5.75
MW -1
VE- 1S -1DM �8
Fuel _
r
Dispensers ? Re ediation
AS -2 uipment
♦ Compound
VE3S -3D M /
MW -2 500
/
ie �o
MW-3 AS-4
AS-3 ♦ ♦� VE-4
4.38 X00
C
Z_
O
z
G
M
z
C
M
0
M
z
z
M
0 40 FT
SCALE
'
i
i
PACIFIC STREET,. —
/
I
0
d
�
� ♦
A
/
�
/
o,
♦ e7
i 2P0
Zi o
'off
s
It
##* 100
MW -5
-0.06
MINIT STOP MARKET
EC Remediation 2900 NORTH UNION AVE FIGURE
5300 Woodmere Dr., Suite 105 BAKERSFIELD, CALIFORNIA
Z�akersfield, CA 93313
FIRST QUARTER 2008
Nhone: (661) 831 -6906 GROUNDWATER GRADIENT PLOT 313
Fax: (661 831 -6234
ND
LEGEND
MW -1
Groundwater Monitoring
Well Location with Groundwater
Elevation in Feet Above Mean
6.11
Sea Level (MSL)
`S
Groundwater Elevation Contour
in Feet Above MSL (dashed wher
approximate, queried where
unknown)
AS -1
M
Air Sparge Well Location
E
Vapor Extraction Well Location J
`
i
i
PACIFIC STREET,. —
/
I
0
d
�
� ♦
A
/
�
/
o,
♦ e7
i 2P0
Zi o
'off
s
It
##* 100
MW -5
-0.06
MINIT STOP MARKET
EC Remediation 2900 NORTH UNION AVE FIGURE
5300 Woodmere Dr., Suite 105 BAKERSFIELD, CALIFORNIA
Z�akersfield, CA 93313
FIRST QUARTER 2008
Nhone: (661) 831 -6906 GROUNDWATER GRADIENT PLOT 313
Fax: (661 831 -6234
AS -1
VE -2S -2D M UST MW-4
r'a
ND
MW -1
VE- 1S -1DM Z
Fuel ND
Dispensers Remediation
AS -2 Equipment
Compound
VE-3S-3D M
MW -2
Z
ND
AS -3 MW -3 AS-4 VE-4
i■ -
� ND
C
Z
O
Z
M
Z
C
M
0
M
Z
M
r
Z
M
0 40 FT
�-M�
SCALE
PACIFIC STREET
MINIT STOP MARKET
E2C Remediation 2900 NORTH UNION AVE FIGURE
5300 Woodmere Dr., Suite 105 BAKERSFIELD, CALIFORNIA
F � Bakersfield, CA 93313
Phone: (661) 831 -6906 FOURTH QUARTER 2007 4A
Fax: (661 831 -6234 BENZENE DISTRIBUTION PLOT
I EGENn
MW -3
Groundwater Monitoring
Well Location with Benzene
Concentration in Micrograms
33
per Liter (uglL)
AS -1
M
Air Sparge Well Location
VE
M
Vapor Extraction Well Location
�ND
Benzene Not Detected
PACIFIC STREET
MINIT STOP MARKET
E2C Remediation 2900 NORTH UNION AVE FIGURE
5300 Woodmere Dr., Suite 105 BAKERSFIELD, CALIFORNIA
F � Bakersfield, CA 93313
Phone: (661) 831 -6906 FOURTH QUARTER 2007 4A
Fax: (661 831 -6234 BENZENE DISTRIBUTION PLOT
I C
z
n
AS -1
VE -2S -2D M UST MW-4
ND
MW -1
VE- 1S -10M it
Fuel ND
Dispensers Remediation
AS-2 Equipment
i Compound
VE3S -3D M
MW -2
ie
ND
AS-3 MW3 AS-4 VE-4
M a M
ND
PACIFIC STREET
MINIT STOP MARKET
E2C Remediation 2900 NORTH UNION AVE FIGURE
F1 5300 Woodmere Dr., Suite 105 BAKERSFIELD, CALIFORNIA
Bakersfield, CA 93313
FIRST QUARTER 2008
Phone: (661) 831 -6906 BENZENE DISTRIBUTION PLOT 413
Fax: (661)831 -6234
z
z
O
z
M
z
C
M
n
M
z
M
r
z
M
0 40 FT
SCALE
e
I FrFNn
MW -1
VE -2S
-21)
UST MW-4
81
Concentration in Micrograms
per Liter (ug /L)
AS -1
M
ND
VE
M
Vapor Extraction Well Location
MW -1
TPHg Not Detected
VE- 1S -1DM
Fuel
ND
Dispensers
Remediation
Equipment
Compound
VE-3S
-3D M
MW -2
r14,000
(� Approximate Limit of
ND TPHg Plume
AS-3 VE-4
•
z
z
O
z
M
z
C
M
n
M
z
M
r
z
M
0 40 FT
SCALE
e
I FrFNn
MW -1
Groundwater Monitoring
Well Location with TPHg
81
Concentration in Micrograms
per Liter (ug /L)
AS -1
M
Air Sparge Well Location
VE
M
Vapor Extraction Well Location
ND
TPHg Not Detected
PACIFIC STREET
OFakersfield, MINIT STOP MARKET FIGURE
EZC Remediation 2900 NORTWUNION AVE
00 Woodmere Dr., Suite 105 BAKERSFIELD, CALIFORNIA
CA 93313
FOURTH QUARTER 2007
Phone: ( 661 ) 831 -6906 TPHg DISTRIBUTION PLOT 5A
Fax: 661 831 -6234
PACIFIC STREET
I C
Z
O
MINIT STOP MARKET
EC Remediation 2900 NORTH UNION AVE FIGURE
F1 5300 Woodmere Dr., Suite 105 BAKERSFIELD, CALIFORNIA
Brsfield, CA 93313
ne: (661) 831 -690fi FIRST QUARTER 2008 5B
Fax: 661) 831 -6234 TPHg DISTRIBUTION PLOT
j AS -1
I
VE -2S
-21)
M UST MW-4
a
ND
W-
VE -1 S -1 D �
Fuel
427
Dispensers
Remediation
Equipment
M Compound
AS -2
VE-3S
-3D M
MW -2
A proximate Limit of
ND TPHg Plume
AS-3 MW-3 S-4 VE-4
• M
9,420
PACIFIC STREET
I C
Z
O
MINIT STOP MARKET
EC Remediation 2900 NORTH UNION AVE FIGURE
F1 5300 Woodmere Dr., Suite 105 BAKERSFIELD, CALIFORNIA
Brsfield, CA 93313
ne: (661) 831 -690fi FIRST QUARTER 2008 5B
Fax: 661) 831 -6234 TPHg DISTRIBUTION PLOT
r
Project Number 1803BK26
r
r� r r .■� 1�s ■r I�
FIGURE 6
GROUNDWATER MtBE CONCENTRATION TRENDS
■r
Ir �■�I r
July 1, 2008
E2 Remediation
cP cP` oc, oh oh o`' Ae �° A° do
Month -Year
Figure 6
80,000
I I I I I I I
I 1 I I I I I I I 1 1 I I I 1 1
I I I 1 I I I
1 1 I I I I 1
I t I 1 I I I i 1 I I I I I 1 1
I I I I I 1 I I I I I I 1
I I I
I 1 I I I I —MW -1 I I
70,000
___J____I____L___J____ _ y___ J____
L_______ I ____L___J____I-- __1_- _J____L___
--E--MW-2
1 I I I I 1 I I I
I I I I I I I
I I 1 I
—MW -3
60,000
I I I 1 I
--- ;---- ,-------- - - - - -,- -- ;---- I--
I I I I I I I
I I I I I I I
STP1RT REM9DIAT[6N- -- - - - - -- - - - - - - - -� - -- -- - - - - -- - -- --- - - - - -� - -- �-
I
I I I I I 1
4/29/04
I I I I I I I I I 1 I I I I 1 I
50,000
I I I I I I
i I I 1 I I
I I I I
I I I I I I I I I I I I I I I I
I I 1 I 1 I I I I I I I I I I I
I I I I I I 1 I 1 1 I I
I I I I I I I
I I I I I I I 1 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 1 I I I
1 I I I I I
1 I I I I I I I I i I I I I I I
1 I I I I I
t I 1 I I I I I I 1 I I I I I I
40,000
--- '1 ---- 1 ' - - - -! - -- !-- - - - - - - - - -' -
I I I
-- '---- !--- - - - - -! ------- ' - - - -! ----'----'----!----'----'--------'--------'-
I 1 1 I I 1 1
L
I I I I I I I
I 1 I I I I I
I I 1 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
C
I I I I 1 I 1
I 1 I I 1 I 1 I I I I 1 1 I 1 I
1 I I I 1 I
I I 1 I I I I
I I I I I I I I I I
I I I I I I
V
1 I I i I I I
I I I I I 1 I I I I
I I
Q
30,000
I I I I I I I
------- r--- r - - -� -- - r - - -r- -ti ---
I I I I I I I I I I I I I I
r--- Y---- r- - -r - -- ---- r- - -r - -- ---- r--- r---- I---- r------- r--- r - - -�-
1 1 I I I I I I I I I I
1 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 I I I I I I f I I I I I I
I I I I I I I I I I I I I I I I
I 1 I I 1 I I I I I I I I I I I
20,000
I I I I I 1 I
I I 1 I I 1
I I I t I I
I I I 1 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 I I I I I I I
1 I I I I I I I I I I 1 I I I i
I I I I I I I 1 I I I i I I 1 f
t I 1 1 I I I 1 I I 1 I 1 I I I
I I I
10,000
I I I I I I
I 1 I I I I
I I I I I I
_ _ -- 1 I
- -- I -- ---- r-- - - - - -; r - -- -
1 I I I I I t
I I I I I I
I 1 I 1 I I I 1 I I 1 I I
I I I I I I I 1 I 1 I I I I I I
I I I I 1 I I I I 1 I I 1 1 I 1
- I ___ I I 1 I I 1
r - - -� - - -I- r----------- r---------- T---- i---- r------- r--- r - - -�-
I I I I I I 1 I I I I I I I I I
I I I 1 I I I I I I 1 I I I I
1 I I I I I
I I I I 1 1 I
I I I I I I I I I I 1 I I I I
I I I I I I I I I 1 I I I i 1
E2 Remediation
cP cP` oc, oh oh o`' Ae �° A° do
Month -Year
Figure 6
SVE WELLS
(4 wells)
Iliilllr IIIIIIIII mm on m m m m m m m
AIR CPAArC 1A /GI I C
SVE MANIFOLD (VAPOR MANIFOLD)
GAC SYSTEM
(2, 1,0004b vapor phase canisters)
LE PORTS
Reserve Canister
0
UENT
:OUT POT
E2C Remediation
5300 Woodmere Dr., Suite 105 MINIT STOP MARKET
P Bakersfield, CA Dr., 2900 NORTH UNION AVE FIGURE
BAKERSFIELD, CALIFORNIA
Phone: (661) 831 -6906 7
Fax: (661) 831 -6234 VE/AS /GAC PROCESS FLOW DIAGRAM
ftiect Number 1803BK26
July 1 08
' TABLES
Table 1 A Summary of Fourth Quarter 2007 Groundwater Monitoring Data
Table 1 B Summary of First Quarter 2008 Groundwater Monitoring Data
Table 2 Summary of Historical Groundwater Elevation Data
Table 3 Summary of Historical Groundwater Analytical Data
Table 4 Summary of VE /GASS Monitoring Data
Table 5 Summary of Hydrocarbon Mass Removed
Table 6 Summary of Influent Vapor Analytical Data
Table 7 Summary of Effluent Vapor Analytical Data
II E2C Aemediation Tables
Project Number 1803BK26
July 1, 2008
E2 C Remediation Table 1A -1
TABLE 1 A
SUMMARY OF FOURTH QUARTER 2007 GROUNDWATER
MONITORING
DATA
MINIT STOP MARKET
2900 Union Avenue
Bakersfield, California
October 16, 2007
TOC Elevation
Depth to Water
GW Elevation
B I T I E I X
I TPHg
I MtBE I TBA
I DIPE I ETBE I TAME 1,2 -DCA EDB
Well ID
u L
feet MSL
feet BTOC
feet MSL
MW -1
123.15
112.06
11.09
nd<0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd<0.5
MW -2
121.86
111.66
10.20
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd<2.5
nd <0.5
nd<0.5
nd <0.5
nd <0.5
nd <0.5
MW -3
122.29
113.13 9.16
nd <0.5
2.5
190
190
14,000
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
duplicate
Labeled
MW - 6 on COC
nd <0.5
2.5
190
190
14,000
nd <0.5
nd <2.5
nd<0.5
nd <0.5
nd <0.5
nd<0.5
nd <0.5
MW -4
123.25
112.80
10.45
nd <0.5
nd<0.5
nd <0.5
nd <0.5
nd <50
nd<0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd<0.5
nd <0.5
MW -5 1
121.84
117.70
4.14 1
nd <0.5
nd <0.5
nd<0.5
nd <0.5 1
nd <50
1 nd <0.5
nd <2.5
nd <0.5 1
nd <0.5
nd <0.5
nd <0.5 1
nd <0.5
Notes:
1,2 -DCA= 1,2- Dichloroethane
B= Benzene
BTOC = Below top of casing
DIPE = Di- isopropyl Ether
E = Ethylbenzene
EDB = Ethylene Dibromide (a.k.a. Dibromo Methane)
ETBE = Ethyl tertiary-butyl Ether
GW = Groundwater
LEAD = Dissolved Lead
MtBE = Methyl tertiary-Butyl Ether
na = Not analyzed
nd = Not detected at or above the Method Detection Limit, which is
indicated by number.
= Toluene
TAME = Tertiary-Amyl Methyl Ether
BA = Tertiary-Butyl Ether (a.k.a tert- butanol)
OC = Top of casing
PHg = Total Petroleum Hydrocarbons as gasoline
ug/kg = micrograms per liter
X = Total xylenes
Sam le MW -6 on chain-of-custody is duplicate of MW -3.
E2 C Remediation Table 1A -1
Project Number 1803BK26
July 1, 2008
EZ C Remediation i Table 1B-1
TABLE 1 B
SUMMARY OF FIRST QUARTER 2008 GROUNDWATER MONITORING DATA
MINIT STOP MARKET
2900 Union Avenue
Bakersfield, California
January 17, 2008
I
TOC Elevation
Depth to Water
GW Elevation
B I T
I E
I X
I TPHg
I MtBE I TBA
I DIPE
I ETBE I TAME I 1,2 -DCA EDB
Well ID
u L
feet MSL
feet BTOC
feet MSL
MW -1
123.15
117.04
6.11
nd<0.5
nd <0.5
nd <0.5
nd<0.5
427
nd <0.5
nd <2.5
nd
<0.5
I nd <0.5
nd <0.5
nd <0.5
nd<0.5
MW -2
121.86
116.65
5.21
nd <0.5
nd <0.5
nd<0.5
nd <0.5
nd <50
nd <0.5
nd<2.5
nd
<0.5
nd <0.5
nd<0.5
nd <0.5
nd <0.5
MW -3
122.29
117.91 4.38
nd <0.5
49.0
133
242
9,420
nd <0.5
nd <2.5
nd
<0.5
nd<0.5
nd<0.5
nd <0.5
nd<0.5
duplicate
Labeled
MW - 6 on COC
nd <0.5
48.2
134
239
9,440
nd <0.5
nd <2.5
nd
<0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
MW -4
123.25
117.50
f 5.75
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd<0.5
nd <2.5
n6<0.5
nd <0.5
nd <0.5
nd <0.5
nd<0.5
MW -5
1 121.84
121.90
-0.06 1
nd <0.5
nd<0.5
nd <0.5
nd <0.5
1 nd <50
1 nd< .51
nd <2.5
n,
<0.5
nd <0.5
nd<0.5
nd <0.5 1
nd <0.5
Notes:
1,2 -DCA= 1,2- Dichloroethane
B = Benzene
BTOC = Below top of casing
DIPE = Di- isopropyl Ether
E = Ethylbenzene
EDB = Ethylene Dibromide (a.k.a. Dibromo Methane)
ETBE = Ethyl tertiary-butyl Ether
GW = Groundwater
LEAD = Dissolved Lead
MtBE = Methyl tertiary-Butyl Ether
na = Not analyzed
I
nd = Not detected at or above the Method Detection Limit, which is
indicated by number.
= Toluene
TAME = Tertiary-Amyl Methyl Ether
BA = Tertiary-Butyl Ether (a.k.a tert- butanol)
OC = Top of casing
PHg = Total Petroleum Hydrocarbons as gasoline
ug/kg = micrograms per liter
= Total xylenes
Sam le MW -6 on chain-ot-custGdy is duplicate of MW -3.
EZ C Remediation i Table 1B-1
Project Number 1803BK26
July 1, 2008
TABLE 2
SUMMARY OF HISTORICAL GROUNDWATER ELEVATION DATA
MINIT STOP MARKET
2900 Union Avenue
Bakersfield, California
WELL ID
DATE
TOTAL
DEPTH
(feet BTOC)
DEPTH
TO GW
(feet BTOC)
TOC
ELEVATION
(feet MSL)
GW
ELEVATION
(feet MSL)
GW ELEVATION
CHANGE
feet)
MW -1
4/19/02
135.44
117.68
sp
5/23/02
137.00
117.70
-0.02
8/15/02
135.37
114.98
2.72
12/9102
135.32
118.22
-3.24
2/28/03
135.50
121.10
199.91
78.81
-2.88
6/5/03
137.00
119.15
80.76
1.95
10/10/03
135.50
113.93
85.98
5.22
12/9/03
135.45
115.82
84.09
-1.89
3/30/04
135.50
119.64
80.27
-3.82
6/14/04
135.50
116.87
83.04
2.77
9/3/04
135.50
113.50
12315
9.65
3.37
12/10/04
135.45
116.39
6.76
-2.89
3/16/05
135.45
119.20
3.95
-2.81
5/31/05
135.45
_
116.77
6.38
2.43
8/24/05
135.45
111.93
11.22
4.84
11/8/05
135.45
113.25
_
9.90
-1.32
217/06
135.45
117.75
5.40
-4.50
5/5/06
135.45
117.60
5.55
0.15
8/11/06
135.45
112.62
10.53
4.98
10/30/06
135.45
113.60
9.55
-0.98
1/16/07
135.45
115.72
7.43
-2.12
4/19/07
135.45
115.76
7.39
-0.04
7/17/07
135.45
112.54
10.61
3.22
10/16/07
135.45
112.06
11.09
0.48
1/17/08
135.45
117.04
6.11
-4.98
E2 Aemediation Table 2 -1
' Project Number 1803BK26 July 1, 2008
TABLE 2
SUMMARY OF HISTORICAL GROUNDWATER ELEVATION DATA
MINIT STOP MARKET
2900 Union Avenue
Bakersfield, California
WELL ID
DATE
TOTAL
DEPTH
(feet BTOC)
DEPTH
TO GW
(feet BTOC)
TOC
ELEVATION
(feet MSL)
GW
ELEVATION
(feet MSL)
GW ELEVATION
CHANGE
(feet)
MW -2
2/28/03
134.80
120.50
198.42
77.92
6/5/03
134.66
118.60
79.82
1.90
10/10/03
135.50
113.50
84.92
5.10
12/9/03
135.74
115.20
83.22
-1.70
3/30/04
135.50
118.96
79.46
-3.76
6/14/04
135.50
116.31
82.11
2.65
9/3/04
135.50
112.98
12186
8.88
3.33
12/10/04
135.74
116.00
5.86
-3.02
3/16/05
135.74
118.76
3.10
-2.76
5/31/05
135.75
116.18
5.68
2.58
8/24/05
135.75
111.28
10.58
4.90
11/8/05
135.75
112.81
9.05
-1.53
2/7/06
135.75
116.80
5.06
-3.99
5/5/06
135.75
117.08
4.78
-0.28
8/11/06
135.75
112.08
9.78
5.00
10/30/06
135.75
113.18
8.68
-1.10
1/16/07
135.75
115.33
6.53
-2.15
4/19/07
135.75
115.25
6.61
0.08
7/17/07
135.75
112.02
9.84
3.23
10/16/07
135.75
111.66
10.20
0.36
1/17/08
135.75
116.65
5.21
-4.99
IE2 C Remediation Table 2 -2
Project Number 1803BK26
July 1, 2008
TABLE 2
SUMMARY OF HISTORICAL GROUNDWATER ELEVATION DATA
MINIT STOP MARKET
2900 Union Avenue
Bakersfield, California
WELL ID
DATE
TOTAL
DEPTH
(feet BTOC)
DEPTH
TO GW
feet BTOC)
TOC
ELEVATION
(feet MSL)
GW
ELEVATION
(feet MSL)
GW ELEVATION
CHANGE
(feet)
MW-3
2/28/03
134.90
121.76
199.01
77.25
6/5/03
134.85
120.08
78.93
1.68
10/10/03
134.90
115.09
_
83.92
4.99
12/9/03
134.85
116.62
82.39
-1.53
3/30/04
134.90
120.25
78.76
-3.63
6/14/04
134.90
117.94
81.07
2.31
9/3/04
134.90
115.08
122.29
7.21
2.86
12/10/04
134.85
117.41
4.88
-2.33
3/16/05
134.85
120.10
2.19
-2.69
5/31/05
134.85
118.95
3.34
1.15
8/24/05
134.85
112.94
9.35
6.01
11/8/05
134.85
114.35
7.94
-1.41_
2/7/06
134.85
116.85
5.44
-2.50
5/5/06
134.85
117.75
4.54.
-0.90
8/11/06
134.85
113.80
8.49
3.95
10/30/06
134.85
114.64
7.65
-0.84
1/16/07
134.85
116.66
5.63
-2.02
4/19/07
134.85
116.73
5.56
-0.07
7/17/07
134.85
113.66
8.63
3.07
10/16/07
134.85
113.13
9.16
0.53
1/17/08
134.85
117.91
4.38
-4.78
IE2 C Remediation
Table 2 -3
Project Number 1803BK26
July 1, 2008
TABLE 2
SUMMARY OF HISTORICAL GROUNDWATER ELEVATION DATA
MINIT STOP MARKET
2900 Union Avenue
Bakersfield, California
WELL ID
DATE
TOTAL
DEPTH
(feet BTOC)
DEPTH
TO GW
(feet BTOC)
TOC
ELEVATION
(feet MSL)
GW
ELEVATION
(feet MSL)
GW ELEVATION
CHANGE
(feet)
MW -4
2/28/03
135.00
121.40
200.00
78.60
6/5/03
136.21
120.02
79.98
1.38
10/10/03
136.20
114.80
85.20
5.22
12/9/03
135.05
116.25
83.75
-1.45
3/30/04
136.20
120.00
80.00
-3.75
6/14/04
136.20
118.05
81.95
1.95
9/3/04
136.20
114.36
123.25
8.89
3.69
12/10/04
135.05
117.00
6.25
-2.64
3116/05
135.05
119.80
3.45
-2.80
5/31/05
135.05
117.65
5.60
2.15
8/24/05
135.00
112.88
10.37
4.77
11/8/05
135.00
113.98
9.27
-1.10
2/7/06
135.00
117.80
5.45
-3.82
5/5/06
135.00
117.96
5.29
-0.16
8/11/06
135.00
113.62
9.63
4.34
10/30/06
135.00
114.32
8.93
-0.70
1/16/07
135.00
116.35
6.90
_
-2.03
4/19/07
135.00
115.56
7.69
0.79
7/17/07
135.00
113.48
9.77
2.08
10/16/07
135.05
112.80
10.45
0.68
1/17/08
135.05
117.50
5.75
-4.70
IE2 Remediation
Table 2-4
Project Number 1803BK26
July 1, 2006
IEZ C Remediation
Table 2 -5
TABLE 2
SUMMARY OF HISTORICAL GROUNDWATER ELEVATION
DATA
MINIT STOP MARKET
2900 Union Avenue
Bakersfield, California
TOTAL
DEPTH
TOC
GW
GW ELEVATION
WELL ID
DATE
DEPTH
TO GW
ELEVATION
ELEVATION
CHANGE
(feet BTOC)
(feet BTOC)
(feet MSL)
(feet MSL )
(feet)
10/10/03
135.05
119.90
12/9/03
135.03
121.10
-1.20
sp
3/30/04
135.05
124.12
-3.02
6/14/04
135.05
122.18
1.94
9/3/04
135.05
119.13
2.71
3.05
12/10/04
135.03
121.58
0.26
-2.45
3/16/05
135.03
123.90
-2.06
-2.32
5/31/05
135.00
122.00
-0.16
1.90
8/24/05
135.00
117.86
3.98
4.14
MW-5
11 /8/05
135.00
118.84
3.00
-0.98
217/06
135.00
121.95
-0.11
-3.11
5/5/06
135.00
122.70
-0.86
-0.75
12184
8/11 /06
135.00
118.37
3.47
4.33
10/30/06
135.00
_
119.20
2.64
-0.83
1/16/07
135.00
120.81
1.03
-1.61
4/19/07
135.00
120.83
1.01
-0.02
7/17/07
135.00
_
118.26
3.58
2.57
10/16/07
135.00
117.70
4.14
0.56
1 /17/08
135.00
121.90
-0.06
-4.20
NOTES:
BTOC = Below Top of Casing
Ave. Water Level Change (feet)
GW = Groundwater
2Q.05 - 3Q.05
4.93
MSL = Mean Sea Level
3Q.05 - 4Q.05
-1.27
OC = Top of Casing
4Q.05 - 1 Q.06
-3.58
p = Survey pending
10.06 - 2Q.06
-0.39
2Q.06 - 3Q.06
4.52
30.06 - 4Q.06
-0.89
4Q.06 - 10.07
-1.99
10.07 - 2Q.07
0.15
2Q.07 - 3Q.07
2.83
3Q.07 - 4Q.07
0.52
40.07 - 1Q.08
-4.73
IEZ C Remediation
Table 2 -5
Project Number 1803BK26
July 1, 2008
TABLE 3
SUMMARY OF HISTORICAL GROUNDWATER ANALYTICAL DATA
MINIT STOP MARKET
2900 Union Avenue
Bakersfield, California
Well
Sample
B T E X TPHg MtBE TBA DIPE ETBE TAME 1,713CA EDB Dis. Lead
ID
Date
N L
2/18/98
nd <0.5
nd <0.5
nd <0.5
130
380
1,570
nd
na
na
na
na
na
na
duplicate
nd<0.5
nd <0.5
nd <0.5
140
390
1,770
nd
na
na
na
na
na
na
5/23/02
nd <0.5
nd <0.5
nd <0.5
nd <0.5
5,200
4,040
nd
na
na
na
na
na
na
duplicate
nd<0.5
nd <0.5
nd <0.5
nd <0.5
5,350
3,730
nd
na
na
na
na
na
na
8/15/02
nd <0.5
nd <0.5
nd <0.5
nd <0.5
6,000
5,780
na
na
na
na
na
na
na
duplicate
nd <0.5
nd <0.5
nd <0.5
nd <0.5
6,250
5,590
na
na
na
na
na
na
na
12/9/02
nd <0.5
nd <0.5
nd <0.5
130
12,300
11,630
nd<2.5
nd <0.5
nd <0.5
nd <0.5
2.2
nd <0.5
nd <0.05
duplicate
nd <0.5
nd <0.5
1.0
130
13,730
11,660
nd <2.5
nd <0.5
1.9
nd <0.5
3.7
nd <0.5
nd <0.05
2/28/03
nd<0.5
nd <0.5
nd <0.5
nd <0.5
21,000
20,900
68.0
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
duplicate
nd <0.5
nd <0.5
nd <0.5
nd <0.5
19,200
19,100
98.3
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
6/5/03
3,270
10,600
383
7,944
40,800
12,700
157
nd <0.5
nd <0.5
nd <0.5
nd<0.5
nd <0.5
na
duplicate
3,550
11,500
371
8,185
48,000
13,500
171
nd<0.5
nd <0.5
nd<0.5
nd <0.5
nd <0.5
na
10/10/03
590
1,960
25
10,080
18,900
74,600
180
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
duplicate
580
2,120
25
10,180
18,850
67,000
172
nd <0.5
nd <0.5
nd <0.5
nd<0.5
nd<0.5
na
12/9/03
1,292
3,471
475
2,540
14,032
31,188
nd <2.5
nd <0.5
21
20
nd <0.5
130
na
MW -1
duplicate
1,450
4,246
470
2,544
14,130
31,804
nd<2.5
nd <0.5
26
20
nd <0.5
140
na
3/30/04
174
1,605
2,690
2,508
66,407
12,365
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
duplicate
181
1,589
2,570
2,455
67,152
12,210
nd <2.5
nd <0.5
nd<0.5
nd <0.5
nd <0.5
nd <0.5
na
6/14/04
nd <0.5
nd <0.5
nd <0.5
nd <0.5
307
9.0
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
9/3/04
nd<0.5
nd <0.5
nd <0.5
4.3
270
19
nd <2.5
nd <0.5
nd <0.5
nd<0.5
nd <0.5
nd <0.5
na
duplicate
nd <0.5
nd <0.5
nd <0.5
4.2
330
20
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd<0.5
nd <0.5
na
12/10/04
nd <0.5
16
9.4
78
1,700
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd<0.5
nd <0.5
na
duplicate
nd <0.5
15
9.3
78
1,700
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd<0.5
na
3/16/05
nd <0.5
nd <0.5
nd <0.5
5.4
750
nd <0.5
nd<2.5
nd <0.5
nd <0.5
nd<0.5
nd <0.5
nd <0.5
na
5/31/05
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
8/24/05
nd <0.5
1.0
12
260
3,200
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
11/8/05
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
duplicate
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd<50
nd<0.5
nd <2.5
nd <0.5
nd<0.5
nd <0.5
nd <0.5
nd <0.5
na
2/7/06
nd <0.5
nd<0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd<0.5
nd <0.5
nd <0.5
nd <0.5
nd<0.5
na
5/5/06
nd <0.5
nd<0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
8/11/06
nd <0.5
nd <0.5
nd <0.5
17
4,600
nd<0.5
nd <2.5
nd <0.5 I
nd <0.5
nd <0.5 I
nd <0.5 I
nd <0.5
na
E2 C Remediation Table 3 -1
Project Number 1803BK26
July 1, 2008
Ez C Remediation
Table 3 -2
TABLE 3
SUMMARY OF HISTORICAL GROUNDWATER ANALYTICAL DATA
MINIT STOP MARKET
2900 Union Avenue
Bakersfield, California
Well
Sample
B
T
E
X
TPHg I MtBE TBA
I DIPE
ETBE
TAME
1,2 -DCA
EDB
Dis. Lead
ID
Date
Ng/L
10/30/06
11
2.0
5.2
28
13,000
nd <0.5
nd<2.5
nd<0.5
nd <0.5
nd<0.5
nd <0.5
nd <0.5
na
1/16/07
5.5
2.8
2.8
12
6,300
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
4119/07
nd <0.5
nd <0.5
nd <0.5
nd <0.5
980
nd <0.5
nd <2.5
nd<0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
MW -1
7/17/07
nd <0.5
nd <0.5
nd <0.5
nd <0.5
81
nd <0.5
nd<2.5
nd<0.5
nd <0.5
nd<0.5
nd <0.5
nd <0.5
na
10/16/07
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd<0.5
nd <0.5
nd <0.5
nd <0.5
na
1/17108
nd <0.5
nd <0.5
nd <0.5
nd <0.5
427
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
Ez C Remediation
Table 3 -2
Project Number 1803BK26 July 1, 2008
TABLE 3
SUMMARY OF HISTORICAL GROUNDWATER ANALYTICAL DATA
MINIT STOP MARKET
2900 Union Avenue
Bakersfield, California
Well
Sample
B T E X TPHg TMtBE I TBA DIPE ETBE TAME 1,2 -DCA EDB Dis. Lead
ID
Date
2/28/03
nd <0.5
nd <0.5
nd <0.5
3.74
1,600
1,590
nd <2.5
nd <0.5
nd<0.5
nd <0.5
1.92
nd<0.5
na
6/5/03
nd <0.5
nd <0.5
nd <0.5
nd <0.5
76.0
212
nd <2.5
nd<0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
10/10/03
40
44
180
452
4,155
3,280
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
12/9/03
nd<0.5
nd <0.5
0.6
14
226
2,286
12
nd <0.5
nd <0.5
nd <0.5
4
nd<0.5
na
3/30/04
nd<0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
273
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
6/14/04
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
13
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
9/3/04
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
8.0
nd<2.5
nd<0.5
nd <0.5
nd <0.5
nd <0.5
nd<0.5
na
12/10/04
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd<0.5
nd <0.5
nd <0.5
nd <0.5
na
3/16/05
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd<2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
5/31/05
nd <0.5
nd <0.5
nd <0.5
nd<0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
MW
8/24/05
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd<0.5
nd <0.5
nd<0.5
na
-2
11/8/05
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
2/7/06
nd <0.5
nd<0.5
nd<0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd<0.5
nd <0.5
nd <0.5
na
5/5/06
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
8/11/06
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd<0.5
nd <0.5
nd <0.5
nd <0.5
nd<0.5
na
10/30/06
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd<0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
1/16/07
nd<0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd<0.5
nd <0.5
nd <0.5
na
4/19/07
7/17/07
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <50
nd <0.5
nd <0.5
nd<2.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd<0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
na
10/16/07
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd<0.5
nd<2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
1/17/08
nd <0.5
nd<0.5
nd<0.5
nd<0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd<0.5
na
E2 C Remediation Table 3 -3
Project Number 1803BK26
July 1, 2008
TABLE 3
SUMMARY OF HISTORICAL GROUNDWATER ANALYTICAL DATA
MINIT STOP MARKET
2900 Union Avenue
Bakersfield, California
Well
Sample
B T E X TPHg I MtBE I TBA I DIPE ETBE TAME 1,2 -1) EDB Dis. Lead
ID
Date
pgtL
2/28/03
nd <0.5
nd<0.5
nd <0.5
63.9
2,950
2,870
nd <2.5
nd <0.5
nd <0.5
nd<0.5
15.9
nd <0.5
na
6/5/03
nd <0.5
nd <0.5
nd <0.5
0.8
429
305
nd<2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
10/10/03
110
170
nd <0.5
260
5,370
550
nd<2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
12/9/03
1,129
5,328
766
2,669
10,026
928
nd <2.5
nd <0.5
7.0
nd <0.5
8.0
3.0
na
3/30/04
9,800
18,050
3305
3,310
68,121
19,626
nd <2.5
nd <0.5
nd <0.5
nd <0.5
22
nd <0.5
na
6/14/04
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd<0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
duplicate
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd<0.5
na
9/3104
nd<0.5
4.3
nd <0.5
3.0
330
780
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
3.3
na
12/10/04
54
2,700
190
2,300
25,000
410
nd <0.5
nd<0.5
nd <0.5
nd <0.5
1.3
710
na
3/16/05
650
1,200
1 540
2,000
32,000
22
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
duplicate
650
1,200
540
2,000
32,000
21
nd <2.5
nd <0.5
nd<0.5
nd <0.5
nd <0.5
nd <0.5
na
5/31/05
10
10
nd <0.5
870
3,100
23
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
duplicate
10
10
nd <0.5
860
3,100
24
nd <2.5
nd<0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
8/24/05
nd <0.5
8.8
3.2
100
1,100
nd <0.5
nd<2.5
nd<0.5
nd <0.5
nd <0.5
nd <0.5
nd<0.5
na
du licate
nd<0.5
8.7
3.1
98
1,100
nd <0.5
nd <2.5
nd<0.5
nd <0.5
nd <0.5
nd <0.5
nd<0.5
na
11/8/05
nd <0.5
9.5
3.4
99
1,100
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
2/7/06
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
MW -3
duplicate
nd <0.5
nd <0.5
nd <0.5
nd<0.5
nd_ <50
nd <0.5
nd <2.5
nd <0.5
nd<0.5
nd <0.5
nd <0.5
nd <0.5
na
5/5/06
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
duplicate
nd <0.5
nd<0.5
nd<0.5
nd <0.5
nd <50
nd <0.5
nd<2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd<0.5
na
8/11/06
4.0
78
15
2,300
25,000
nd <0.5
nd <2.5
nd <0.5
nd<0.5
nd <0.5
nd<0.5
nd <0.5
na
duplicate
4.0
78 .
15
2,300
25,000
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd<0.5
nd <0.5
na
10/30/06
3.0
320
170
1,600
42,000
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
duplicate
3.0
320
170
1,600
42,000
nd<0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
1/16/07
18
320
250
1,500
44,000
nd <0.5
nd <2.5
nd <0.5
nd<0.5
nd<0.5
nd <0.5
nd <0.5
na
duplicate
18
320
250
1,500
44,000
nd <0.5
nd <2.5
nd <0.5
nd<0.5
nd <0.5
nd <0.5
nd <0.5
na
4119/07
33
900
740
1,800
22,000
nd <0.5
nd <2.5
nd<0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
duplicate
33
900
740
1,800
22,000
nd <0.5
nd<2.5
nd<0.5
nd <0.5
nd <0.5
nd<0.5
nd <0.5
na
7/17/07
nd <0.5
2,900
1,000
4,700
55,000
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd<0.5
nd<0.5
na
duplicate
nd <0.5
2,900
1,000
4,700
55,000
nd<0.5
nd <2.5
nd<0.5
nd<0.5
nd <0.5
nd<0.5
nd <0.5
na
10/16/07
nd <0.5
3
190
190
14,000
nd <0.5
nd <2.5
nd<0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
duplicate
nd <0.5
3
190
190
14,000
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd<0.5
nd <0.5
na
1/17/08
nd <0.5
49.0
133
242
9,420
nd <0.5
nd<2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
du licate
nd <0.5 1
48.2
134
239
9,440
nd <0.5
nd<2.5
nd <0.5
nd <0.5
nd <0.5
nd<0.5
nd<0.5
na
1
1
1
1
EZ C Remediation Table 3-4
Project Number 1803BK26
July 1, 2008
TABLE 3
SUMMARY OF HISTORICAL GROUNDWATER ANALYTICAL DATA
MINIT STOP MARKET
2900 Union Avenue
Bakersfield, California
Well
Sample
B T E X TPHg I MtBE I TBA DIPE I ETBE TAME 1,2 -DCA EDB rDis. Lead
ID
Date
pg/L
2/28/03
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
6/5103
0.8
nd <0.5
nd<0.5
nd <0.5
nd <50
nd <0.5
nd<2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
10/10/03
nd<0.5
nd <0.5
nd <0.5
nd<0.5
nd <50
8.5
nd<2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
12/9/03
nd <0.5
nd<0.5
0.6
nd <0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd<0.5
nd <0.5
nd <0.5
na
3130/04
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd<2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
6/14/04
1.0
nd <0.5
nd <0.5
nd <0.5
nd <50
1,388
nd<2.5
1.0
nd <0.5
nd <0.5
9.0
nd <0.5
na
9/3/04
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd<0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
12/10/04
nd<0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
3/16/05
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
5/31/05
nd <0.5
2.3
nd <0.5
nd <0.5
nd <50
I nd <0.5
nd <2.5
nd<0.5
nd <0.5
I nd <0.5
nd <0.5
nd<0.5
na
MW
8/24/05
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
-4
11/8/05
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd<0.5
nd <0.5
nd <0.5
nd <0.5
nd<0.5
na
217/06
nd<0.5
nd<0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd<2.5
nd <0.5
nd<0.5
nd <0.5
nd <0.5
nd <0.5
na
5/5/06
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
8/11/06
nd <0.5
nd <0.5
nd <0.5
nd<0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
10/30/06
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
1/16/07
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd<50
nd <0.5
nd<2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
4/19/07
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
7/17/07
nd <0.5
nd<0.5
nd <0.5
nd <0.5
nd <50
nd<0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
10/16/07
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd<0.5
nd <2.5
nd <0.5
nd <0.5
nd<0.5
nd <0.5
nd <0.5
na
1/17/08
nd <0.5
nd<0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd<0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
E2 Remediation Table 3 -5
Project Number 1803BK26
July 1, 2008
E2 C Remedladon Table 3-6
TABLE 3
SUMMARY OF HISTORICAL GROUNDWATER ANALYTICAL DATA
MINIT STOP MARKET
2900 Union Avenue
Bakersfield, California
Well
Sample
B
T E X
TPHg
I MtBE
I TBA
DIPE
I ETBE
TAME
1,2 -DCA
EDB Dis. Lead
ID
Date
Ng/L
10/10/03
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd<2.5
nd <0.5
nd <0.5
nd<0.5
nd <0.5
nd <0.5
na
12/9/03
nd <0.5
nd <0.5
0.6
0.6
nd <50
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
3130/04
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd<0.5
nd<0.5
nd <0.5
nd<0.5
na
6/14/04
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
193
nd <2.5
nd <0.5
nd <0.5
nd <0.5
1.0
nd <0.5
na
9/3/04
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd<0.5
nd <0.5
nd <0.5
nd<0.5
nd <0.5
na
12/10/04
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd<0.5
nd <0.5
nd <0.5
nd <0.5
na
all 6/05
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
5/31/05
nd <0.5
3.7
nd<0.5
nd <0.5
nd<50
2.3
nd <2.5
nd<0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
8/24/05
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd<0.5
na
MW
11/8/05
nd<0.5
nd <0.5
nd<0.5
nd <0.5
nd <50
nd<0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
-5
2/7/06
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd<0.5
nd<2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
5/5/06
nd <0.5
nd<0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd<0.5
na
8/11/06
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd<50
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd<0.5
nd <0.5
nd <0.5
na
10/30/06
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd<2.5
nd <0.5
nd <0.5
nd<0.5
nd <0.5
nd <0.5
na
1/16/07
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd<0.5
nd <0.5
nd <0.5
nd<0.5
na
4/19/07
nd <0.5
nd<0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
7/17/07
nd <0.5
nd<0.5
nd <0.5
nd <0.5
nd<50
nd<0.5
nd <2.5
nd <0.5
nd<0.5
nd <0.5
nd <0.5
nd <0.5
na
10/16/07
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd<0.5
nd<0.5
na
1/17/08
nd <0.5
nd<0.5
nd <0.5
nd <0.5
nd <50
nd <0.5
nd <2.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
nd <0.5
na
Notes:
Results in micrograms per liter (pV) = parts per billion (ppb)
Analytical Methods: BTEX, oxygenates, 1,2 -DCA, and EDB by EPA Method 8260b; TPHg by EPA Method 8015M; Dissolved Lead by EPA Method 3010A/6010B
Method Detection Limits: BTEX - 0.5 pg/L; TPHg - 50 pg/L; MtBE, ETBE, TAME, and DIPE - 0.5 µg/L; TBA - 2.5 pg/L
1,2 -DCA = 1,2- Dichloroethanf EDB = Ethylene dibromide T = Toluene
B = Benzene ETBE = Ethyl tertiary-butyl Ether TAME = Tertiary-Amyl Methyl Ether
DIPE = Di- isopropyl Ether MtBE = Methyl tertiary-Butyl Ether TBA = Tertiary Butyl Alcohol (a.k.a. tert- butanol)
Dis. Lead = Dissolved lead na = Not analyzed TPHg - Total Petroleum Hydrocarbons as gasoline
E = Eth (benzene nd - Not Detected at or above Method Detection Limit indicated bV value X = Total xylenes
E2 C Remedladon Table 3-6
Project Number 1803BK26
July 1, 2008
TABLE 4A
SUMMARY OF VES MONITORING DATA
MINIT STOP MARKET
2900 Union Avenue
Bakersfield, California
Date
Monitored
Cumulative
Calendar
Days
Operating
Hours
Cumulative
Operating
Hours
Inlet
Flow
(scfm)
Combustion
Temp.
( °F)
Stack
Temp.
( °F)
Field
TPH in
(ppmv)
Lab
TPH in
(ppmv)
Field
TPH out
(ppmv)
Lbs./Hr.
Extracted
Cumulative
Lbs.
Extracted
Cumulative
Gallons
Extracted
4/29/04
0
81
0
276
1515
1505
50,000
0
187.64
15,290
2,389
4/30/04
1
105.5
24.0
284
1525
1485
50,000
0
193.08
19,924
3,113
5/3/04
4
177.5
96.0
265
1495
1360
50,000
0
180.16
32,897
5,140
5/4/04
5
201.8
120.3
264
1489
1314
50,000
0
179.48
37,259
5,822
5/7/04
8
273.0
191.5
261
1477
1379
48,408
0
171.79
49,490
7,733
5/10/04
11
345.5
264.0
271
1471
1351
37,000
0
136.34
59,375
9,277
5/13/04
14
417.5
336.0
268
1486
1358
19,300
0
70.33
64,437
10,068
5/17/04
18
516.0
434.5
267
1476
1355
17,000
0
61.72
70,517
11,018
5/24/04
25
685.0
603.5
266
1481
1353
4,000
0
14.47
72,962
11,400
6/1/04
33
876.0
1450.0
267
1488
1354
7,700
0
27.95
96,625
15,098
6/7/04
39
1024.0
3100.0
258
1483
1341
9,515
0
33.38
151,699
23,703
6/14/04
46
1189.0
3800.0
261
1489
1383
7,000
0
_
24.84
169,088
26,420
6/15/04
47
1203.0
2400.0
230
1488
1354
6,950
0
21.73
138,660
21,666
6/21 /04
53
1357.0
2554.0
220
1479
1477
6,600
0
19.74
141,700
22,141
7/2/04
64
1620.0
2817.0
220
1480
1337
6,320
25
18.91
146,672
22,918
7/6/04
68
1716.0
2913.0
214
1481
1341
3,000
20
8.73
147,510
23,048
7/20/04
82
2050.0
5100.0
214
1482
1345
7,550
23
21.97
195,555
30,555
7/26/04
88
2198.0
3625.0
212
1473
1333
4,020
28
11.59
178,463
27,885
8/4/04
97
2409.2
1701.0
215
1470
1472
6,300
15
18.42
143,029
22,348
8/10/04
103
2551.4
1588.5
215
1477
1465
5,300
21
15.49
141,286
22,076
8/17/04
110
2724.2
1412.5
223
1489
1475
2,800
0
8.49
139,792
21,842
8/24/04
117
2789.0
1000.0
216
1485
1361
5,980
15
17.56
132,547
20,710
9/1/04
125
2978.0
1189.0
199
1487
1341
4,185
30
11.32
134,687
21,045 .
9/3/04
127
3023.0
430.0
210
1415
1395
4,950 1
28
14.13
123,960
19,369
9/7/04
131
3117.0
2100.0
201
1474
1335
4,260
14
11.64
143,402
22,407
9/13/04
137
3258.2
840.0
184
1482
1354
4,110
0
10.25
130,482
20,388
9/20/04
144
3258.2
505.0
181
30
1354
5,230
20
12.87
126,170
19,714
9/27/04
151
3258.2
600.0
185
27
1354
6,560
21
16.54
127,741
19,960
10/4/04 1
158 1
3258.2
600.0
222
0
0
3,175
10
9.58 1
127,741 1
19,960
10/11/04 1
165 1
3936.0 1
1277.9 1
187 1
1479 1
1482
1,775 1
1
0 1
4.51 1
130,800 1
20,438
E,, C Remediation Table 4A -1
Project Number 1803BK26
July 1, 2008
TABLE 4A
SUMMARY OF VES MONITORING DATA
MINIT STOP MARKET
2900 Union Avenue
Bakersfield, California
Date
Monitored
Cumulative
Calendar
Days
Operating
Hours
Cumulative
Operating
Hours
Inlet
Flow
(scfm)
Combustion
Temp.
( °F)
Stack
Temp.
( °F)
Field
TPH in
(ppmv)
Lab
TPH in
(ppmv)
Field
TPH out
(ppmv)
Lbs. /Hr.
Extracted
Cumulative
Lbs.
Extracted
Cumulative
Gallons
Extracted
10/18/04
172
4056.0
1397.9
191
1483
1485
1,850
12
4.80
131,377
20,528
10/27/04
181
4280.0
1621.9
194
1490
1479
1,900
10
5.01
132,499
20,703
11/1/04
186
4403.0
1744.9
192
1486
1481
2,700
20
7.05
133,366
20,838
11/8/04
193
4567.5
1909.4
191
1483
1482
1,550
10
4.03
134,028
20,942
11/15/04
200
4740.0
2081.9
179
1488
1482
2,650
20
6.45
135,141
21,116
11/22/05
572
4906.0
2247.9
179
1481
1480
2,350
20
5.72
136,090
21,264
11/29/04
214
5072.0
2413.9
189
1474
1334
2,275
0
5.85
137,061_
21,416
12/10/04
225
5334.0
2675.9
193
1493
1487
2,200
0
5.77
138,573
21,652
12/17/04
232
5369.0
2710.9
200
1489
1491
1,850
10
5.03
138,749
21,680
12/23/04
238
5369.0
2710.9
0
0
0
0
0.00
138,749
21,680
12/28/04
243
5496.3
2838.1
120
1489
1480
1,500
0
2.45
139,061
21,728
1/4/05
250
5667.0
3008.9
212
1482
1477
1,350
10
3.89
139,725
21,832
1/14/05
260
5793.0
3134.9
221
1481
1481
710
0
2.13
139,994
21,874
1/18/05
264
5800.0
3141.9
204
1483
1483
1,200
10
3.33
140,017
21,878
1/24/05
270
5942.0
3283.9
201
1483
1479
1,850
10
5.06
140,735
21,990
1/31/05
277
6110.0
3451.9
190
1481
1482
1,300
1,900
10
4.91
141,560
22,119
2111/05
288
6110.0
3451.9
0
0
0.00
141,560
22,119
2/14/05
291
6113.0
3454.9
184
1485
1485
1,166
1,000
20
2.50
141,567
22,120
2/21/05
298
6279.0
3620.9
184
1481
1481
1,950
10
7.76
142,855
22,321
2/28/05
305
6451.0
3792.9
180
1480
1480
2,550
20
7.59
144,160
22,525
317/05
312
6546.0
3887.9
187
1480
1480
3,150
5,200
21
13.22
145,416
22,721
3/16/05
321
6572.0
3913.9
186
1480
1479
2,800
0
9.61
145,666
22,760
3/21/05
326
6650.0
3991.9
190
1485
1480
2,850
20
9.82
146,432
22,880
3/28/05
333
6819.0
4160.9
185
1478
1475
2,550
20
9.56
148,047
23,132
4/4/05
340
6985.0
4326.9
183
1480
1480
1,600
6
9.46
149,617
23,378
4/13/05
349
7196.1
4537.9
184
1478
1480
1,600
70
9.51
151,623
23,691
4/21/05
357
7196.1
4538.0
184
1495
1495
2,150
100
9.51
151,623
23,691
4/26/05
362
7360.0
4701.9
181
1490
1490
1,800
2,400
0
5.91
152,591
23,842
5/2/05
368
7505.0
4846.9
180
1478
1478
1,600
5
5.87
153,443
23,975
5/4/05
370 1
7673.0 1
5014.9 1
182 1
1480 1
1480 1
1,550 1
1
5 1
5.94 1
154,441 1
24,131
E2 C Remediation Table 4A -2
M M r M M M M M M i M M M M M M M M M
Project Number 1803BK26
July 1, 2008
TABLE 4A
SUMMARY OF VES MONITORING DATA
MINIT STOP MARKET
2900 Union Avenue
Bakersfield, California
Date
Monitored
Cumulative
Calendar
Da s
Operating
Hours
Cumulative
Operating
Hours
Inlet
Flow
(scfm)
Combustion
Temp.
( °F)
Stack
Temp.
( °F)
Field
TPH in
(ppmv)
Lab
TPH in
(ppmv)
Field
TPH out
(ppmv)
Lbs./Hr.
Extracted
Cumulative
Lbs.
Extracted
Cumulative
Gallons
Extracted
5/16/05
382
7837.0
5178.9
183
1480
1479
1,900
2,400
7
5.97
155,420
24,284
7/25/05
452
7936.0
5277.9
177
1506
1409
1,500
9
8.90
156,302
24,422
7/29/05
456
8125.0
5466.9
177
1488
1478
2,950
15
8.90
157,985
24,685
8/4/05
462
8168.0
5509.9
180
1482
1477
2,250
20
9.06
158,374
24,746
8/12/05
470
8364.0
5705.9
177
1474
1473
800
0
8.90
160,120
25,019
8/19/05
477
8530.0
5871.9
160
1481
1490
3,500
18
8.05
161,456
25,227
8/24/05
482
8651.0
5992.9
164
1483
1482
3,600
20
8.25
162,454
25,383
8/31/05
489
8823.0
6164.9
159.
1478
1484
3,300
5,000
17
10.81
164,313
25,674
9/7/05
496
8983.0
6324.9
157
1482
1493
3,100
70
10.89
166,055
25,946
9/7/05
496
8992.0
6333.9
154
1740
1423
3,300
50
10.68
166,151
25,961
9/26/05
515
8992.0
6333.9
225
1494
1496
5,300
5,200
90
15.91
166,151
25,961
10/3/05
522
9157.5
6499.4
178
1477
1482
2,950
55
8.77
167,603
26,188
10/17/05
536
9158.0
6499.9
180
1484
1488
2,050
2,050
50
5.02
167,606
26,188
10/26/05
545
9160.0
6501.9
193
1483
1489
4,050
70
4.46
167,615
26,190
10/31 /05
550
9281.0
6622.9
191
1476
1481
2,350
0
4.42
168,149
26,273
11/7/05
557
9282.0
6623.9
190
1482
1486
1,850
0
4.39
26,274
11/14/05
564
9282.0
6623.9
196
1479
1483
1,850
0
4.53
_168,154
168,154
26,274
11/22/05
572
9283.0
6624.9
183
1488
1483
1,352
1,352
0
3.36
168,157
26,275
11/28/05
578
9428.0
6769.9
176
1480
1484
1,589
0
3.80
168,708
26,361
12/5/05
585
9429.0
6770.9
183
1487
1490
1,589
0
3.95
168,712
26,361
12/12/05
592
9429.0
6770.9
180
1486
1492
1,825
1,825
0
4.47
168,712
26,361
1/24/06
635
9430.0
6771.9
184
1460
1487
1,000
1,000
0
2.50
168,715
26,362
1/31/06
642
9597.0
6938.9
185
1479
1479
1,000
0
1.80
169,015
26,409
20/06
649
9769.0
7110.9
185
1481
1490
2,850
0
1.80
169,324
26,457
2/13/06
655
9770.0
7111.9
190
1481
1487
3,750
0
1.85
169,326
26,457
2120/06
662
9770.0
7111.9
195
1483
1490
5,500 1
0
1.90
169,326
26,457
2/27/06
669
9770.0
9688.5
0
0.00
169,326
26,457
3/6/06
676
1.4
9689.9
200
1453
1459
4,450
0
1.94
169,329
26,458
3/7/06
677
23.0
9711.5
199
1435
1456
512
430
0
1.16
169,354
26,462
3/13/06
683
23.0
9721.6
0
0.00
169,354
26,462
E2 C Remediatlon Table 4A -3
M ' M M r =1 M M M M M M M M M M M M M
Project Number 1803BK26
Jury 1, 2008
TABLE 4A
SUMMARY OF VES MONITORING DATA
MINIT STOP MARKET
2900 Union Avenue
Bakersfield, California
Date
Monitored
Cumulative
Calendar
Days
Operating
Hours
Cumulative
Operating
Hours
Inlet
Flow
(scfm)
Combustion
Temp.
( °F)
Stack
Temp.
( °F)
Field
TPH in
(ppmv)
Lab
TPH in
(ppmv)
Field
TPH out
(ppmv)
Lbs./Hr.
Extracted
Cumulative
Lbs.
Extracted
Cumulative
Gallons
Extracted
3/20/06
690
23.0
9721.6
0
0.00
169,354
26,462
3/27/06
697
23.0
9721.6
0
0.00
169,354
26,462
4/3/06
704
23.0
9721.6
0
0.00
169,354
26,462
4/20/06
721
23.4
9722.0
192
649
648
3,200
0
0.56
169,354
26,462
4/25/06
726
142.2
9840.8
195
650
652
1,600
2,100
0
5.57
170,016
26,565
5/5/06
736
380.0
10078.6
181
654
646
3,100
0
1.03
170,262
26,603
5/8/06
739
455.1
10153.7
181
655
2,700
0
1.03
170,339
26,615
5/22/06
753
720.1
10418.7
177
662
_653
651
800
840
0
2.02
170,875
26,699
6/1/06
763
960.1
10658.7
185
659
648
720
0
1.57
171,252
26,758-
6/6/06
768
1080.1
10778.7
179
651
662
780
0
1.52
171,435
26,787
6/12/06
774
1224.1
10922.7
181
660
650
640
0
1.54
171,656
26,821
6/23/06
785
1488.0
11186.6
180
652
651
540
0
1.53
172,060
26,884
6/27/06
789
1586.0
11284.6
180
646
650
1,100
410
0
1.00
172,158
26,900
7/3/06
795
1732.0
11430.6
181
646
650
980
0
1.24
172,340
26,928
7/12/06
804
1949.0
11647.6
177
652
659
1,060
0
1.22
172,603
26,969
7/17/06
809
2070.0
117_68.6
179
658
659
880
0
1.23
172,752
26,993
7/24/06
816
2235.0
11933.6
168
642
644
650
600
0
1.37
172,978
27,028
[8/2/06
825
2313.0
12011.6
222
665
662
540
0
1.81
173,120
27,050
E2 C Remediation Table 4A-4
M M M M M M M M M M M M M M M M M M r
Project Number 1803BK26
July 1, 2008
TABLE 4A
SUMMARY OF VES MONITORING DATA
MINIT STOP MARKET
2900 Union Avenue
Bakersfield, California
Cumulative Cumulative Inlet Combustion Stack Field Lab Field Cumulative Cumulative
Date Calendar Operating Operating Flow Temp. Temp. TPH in TPH in TPH out Lbs./Hr. Lbs. Gallons
Monitored Days Hours Hours (scfm) (°F) ( °F) I (ppmv) I (ppmv) I (ppmv) I Extracted Extracted Extracted
Notes:
Hydrocarbons Removed (lbs/month) = Influent Concentration (ppmv) X 10 -6 X Influent Flow Rate (scfm) X 1 lb- mole /379.5 ft3 X 86 (Ib/lb -mole) X 1440 (min /day) X Run
Time (days /month)
2/14/05 - Bag analytical data used in calculations for this time; PID malfunction
4/29/04 - VES (BF -250 CFM) operation starts with all wells open, air sparge on, and 3/4 dilution air on air filter.
Starting influent was measured with FID at a concentration greater than 50,000 ppmv.
12/22/2000 - System down, no supplemental fuel flow as supply was 'zero; notify PG &E
12/27/2000 - Restart system; collect Tedlar bag samples; Influent TPHg = 1,550 ppmv, BTEX = 47 ppmv; effluent TPHg = 0.6 ppmv, BTEX = non - detect
5/19/2005 - City of Bakersfield issued a 7 -Day Notice to Abate, due to noise levels from remediation system. System shut down on 5/23/2005.
7/25/05 - New air compressor, and insulation for blower installed; City of Bakersfield Inspector approves restart.
9/7/2005 thru 9/26/05 - System cycled off to allow for contaminant rebound.
10/3/2005 thru 10/17/05 - System cycled off to allow for contaminant rebound.
10/31/2005 thru 11/22/05 - System cycled off to allow for contaminant rebound.
11/28/2005 thru 12/12/05 - System cycled off to allow for contaminant rebound.
2/7 /06.thru 3/6/06 - System cycled off to allow for contaminant rebound.
March 6, 2006 - Hour meter reset to 0.0 by Baker Furnace during repair
March 7, 2006 - Bag data used for influent
317/06 thru 4/20/06 - System cycled off to allow for contaminant rebound.
3/2/06 - System cycled off to allow for contaminant rebound.
)pen = O; partially open = PO; closed = C
E2 Remediation Table 4A -5
Project Number 1803BK26 July 1, 2008
TABLE 4B
SUMMARY OF VES MONITORING DATA
MINIT STOP MARKET
2900 Union Avenue
Bakersfield, California
Date
Monitored
Well
VE -1 S
valve
Well
VE -1 D
valve
Well
VE -2S
valve
Well
VE -2D
valve
Well
VE -3S
valve
Well
VE -3D
valve
Well
VE-4
valve
Dilution
Air Valve
N
4/29/04
O
O
O
O
O
O
O
75%
4/30/04
O
O
O
O
O
O
O
0%
5/3/04
O
O
O
O
O
O
O
0%
5/4/04
O
O
O
O
_ O _
__ —_O --
O_—
-0- % --
5/7/04
O
O
O
O
O
O
O
0%
5/10/04
O
O
O
O
O
O
O
0%
5/13/04
O
O
O
O
O
O
O
0%
5/17/04
O
O
O
O
O
O
O
0%
5124/04
O
O
O
O
O
O
O
0%
6/1/04
O
O
C
O
O
O
O
0%
6/7/04
O
O
C
O
O
O
O
0%
6/14/04
O
O
C
O
O
O
O
0%
6/15/04
O
O
C
O
O
O
O
0%
6/21/04
O
O
C
O
O
O
O
0%
7/2/04
O
O
C
O
C
O
O
0%
7/6/04
O
O
C
O
C
O
O
0%
7/20/04
O
O
C
O
C
O
O
0%
7/26/04
O
O
C
C
C
O
O
0%
8/4/04
O
O
C
C
C
O
O
0%
8/10/04
O
O
C
C
C
O
O
0%
8/17/04
O
O
C
O
O
O
1/2
0%
8/24/04
O
O
C
1/2
1/2
O
1/4
0%
9/1/04
O
O
C
1/2
1/2
1/2
C
0%
9/3/04
O
O
C
1/2
1/2
1/2
C
0%
917/04
O
O
C
1/2
1/2
1/2
C
0%
9/13/04
O
O
C
1/2
1/2
1/2
C
0%
9/20/04
O
O
C
1/2
1/2
1/2
C
0%
9/27/04
O
1/2
C
1/2
1/2
1/2
C
0%
10/4/04
1/2
1/2
C
1/2
1/2
1/2
C
0%
10/11/04
1/2
1/2
C
1/2
1/2
1/2
C
0%
10/18/04
1/2
1/2
C
1/2
1/2
1/2
C
0%
10/27/04
1/2
1/2
C
1/2
1/2
1/2
C
0%
11/1/04
1/2
1/2
C
1/2
1/2
1/2
C
0%
11/8/04
1/2
1/2
C
1/2
1/2
1/2
C
0%
11/15/04
1/2
1/2
C
1/2
1/2
1/2
C
0%
11/22/05
1/2
1/2
C
1/2
1/2
1/2
C
0%
11/29/04
1/2
1/2
C
1/2
1/2
1/2
C
0%
12/10/04
1/2
1/2
C
1/2
1/2
1/2
C
0%
12/17/04
1/2
112
C
112
1/2
1/2
C
0%
12/23/04
1/2
1/2
C
1/2
1/2
1/2
C
0%
12/28/04
1/2
1/2
C
1/2
1/2
1/2
C
0%
E2 C Remediation Table 4B -1
ProJect Number 1803BK26
July 1, 2008
TABLE 4B
SUMMARY OF VES MONITORING DATA
MINIT STOP MARKET
2900 Union Avenue
Bakersfield, California
Date
Monitored
Well
VE -1 S
valve
Well
VE -1 D
valve
Well
VE -2S
valve
Well
VE -2D
valve
Well
VE -3S
valve
Well
VE -313
valve
Well
VE -4
valve
Dilution
Air Valve
N
114/05
O
1/2
1/2
1/2
1/2
1/2
1/2
0%
1/14/05
O
1/2
1/2
1/2
1/2
1/2
112
0%
1/18/05
O
1/2
1/2
1/2
1/2
1/2
112
0%
1/24/05
O
1/2
1/2
1/2
1/2
1/2
1/2
0%
1/31/05
O
O
1/2
1/2
1/2
1/2
1/2
0%
2/11/05
O
O
1/2
1/2
112
112
112
0%
2/14/05
O
O
1/2
1/2
1/2
1/2
1/2
0%
2/21/05
O
O
C
C
C
C
1/2
0%
2/28/05
O
O
C
C
C
C
1/2
0%
3/7/05
O
O
C
C
C
C
1/2
0%
3/16/05
O
O
C
C
C
C
112
0%
3/21/05
O
O
C
C
C
C
1/2
0%
3/28/05
O
O
C
C
C
C
1/2
0%
414/05
O
O
C
C
C
C
1/2
0%
4/13/05
O
O
C
C
C
C
1/2
0%
4/21/05
O
O
C
C
C
C
1/2
0%
4/26/05
O
O
C
C
C
C
112
0%
5/2/05
O
O
C
C
C
C
1/2
0%
5/4/05
O
O
C
C
C
C
1/2
0%
5/16/05
O
O
C
C
C
C
1/2
0%
7/25/05
O
O
C
C
C
C
1/2
0%
7/29/05
O
O
C
C
C
C
1/2
0%
8/4/05
O
O
C
C
C
C
1/2
0%
8/12105
O
PO
C
C
C
C
1/2
0%
8/19/05
O
PO
C
C
C
C
1/2
0%
8/24/05
O
PO
C
C
C
C
1/2
0%
8/31/05
O
PO
C
C
C
C
1/2
0%
917/05
O
PO
C
C
C
C
1/2
0%
9/7/05
O
PO
C_
C
C
C
1/2
0%
9/26/05
O
O
C
C
C
C
1/2
0%
10/3/05
O
O
C
C
PO
C
1/2
0%
10/17105
O
O
C
C
PO
C
1/2
0%
10/26/05
10/31/05
O
O
C
C
PO
C
1/2
0%
11/7/05
O
O
C
C
PO
C
1/2
0%
11/14/05
O
O
PO
C
PO
C
1/2
0%
11/22/05
PO
PO
PO
PO
PO
PO
112
0%
11/28/05
12/5/05
12/12/05
O
O
PO
PO
PO
PO
1/2
0%
1/24/06
1 O
1 O
1 PO
PO
PO
PO
1/2
0%
E2 C Remediation Table 4B -2
Project Number 1803BK26
July 1, 2008
TABLE 4B
SUMMARY OF VES MONITORING DATA
MINIT STOP MARKET
2900 Union Avenue
Bakersfield, California
Date
Monitored
Well
VE -1 S
valve
Well
VE -1 D
valve
Well
VE -2S
valve
Well
VE -2D
valve
Well
VE -3S
valve
Well
VE -3D
valve
Well
VE -4
valve
Dilution
Air Valve
N
1/31/06
O
O
PO
PO
PO
PO
1/2
0%
2/7/06
O
O
PO
PO
PO
PO
1/2
0%
2/13/06
O
O
PO
PO
PO
PO
1/2
0%
2/20/06
O
O
PO
PO
PO
PO
1/2
0%
2/27/06
3/6/06
O
O
PO
PO
PO
PO
1/2
0%
3/7/06
O
O
C
C
C
C
112
0%
3/13/06
3/20/06
3/27/06
4/3/06
4/20/06
_
O
O
PO
PO
PO
PO
1/2
0%
4/25/06
O
O
PO
PO
PO
PO
1/2
0%
5/5/06
O
O
PO
PO
PO
PO
1/2
0%
5/8/06
O
O
PO
PO
PO
PO
1/2
0%
5/22/06
O
O
PO
PO
PO
PO
1/2
0%
6/1/06
O
O
PO
PO
PO
PO
1/2
e 0%
6/6/06
O
O
PO
PO
PO
PO
1/2
0%
6112/06
O
O
PO
PO
PO
PO
1/2
0%
6/23/06
PO
PO
PO
PO
PO
PO
1/2
0%
6/27/06
PO
PO
PO
PO
PO
PO
1/2
0%
7/3/06
PO
PO
PO
PO
PO
PO
1/2
0%
7/12/06
PO
PO
PO
PO
PO
PO
1/2
0%
7/17106
PO
PO
PO
PO
PO
PO
1/2
0%
7/24/06
PO
PO
PO
PO
PO
PO
1/2
0%
8/2/06
PO
PO
PO
PO
PO
PO
1/2
0%
open = O; partially open = PO; closed = C
E2 C Remediation
Table 4B-3
Project Number 1803BK26
July 1, 2008
TABLE 5
SUMMARY OF HYDROCARBON MASS REMOVED USING VEIGASS
(based on influent concentrations)
MINIT STOP MARKET
2900 Union Avenue
Bakersfield, California
Date
month/ ear
HC Removed
Ibs /month
Cumulative HC
Removed
Ibs
Influent
Concentration
my
Flow Rate
scfm
AcEda n
Daily Removal
Rate
Ibs/da
Apr-04
6,730
6,730
50,000
275
1.5
4,487
May -04
85,407
92,138
31,490
268
31.0
2,755
Jun -04
17,455
109,593
7,348
243
30.0
582
Jul -04
12,296
121,889
5,632
216
31.0
397
Aug -04
8,623
130,512
4,764
213
26.0
332
Sep -04
8,965
139,477
4,639
197
30.0
299
Oct -04
5,340
144,816
2,993
195
28.0
191
Nov -04
4,103
148,920
2,238
187
30.0
137
Dec -04
1,095
150,014
1,835
152
12.0
91
Jan -05
1,751
151,766
1,450
206
18.0
97
Feb -05
2,650
154,416
3,100
185
14.2
187
Mar -05
4,212
158,628
3,800
186
18.3
230
Apr -05
3,228
161,856
2,400
182
22.6
143
May -05
2,846
164,702
2,400
.182
20.0
142
Jun -05
Jul -05
836
165,538
2,400
178
6.0
139
Aug -05
8,745
174,283
5,100
170
31.0
282
Sep -05
1,446
175,729
3,625
175
7.0
207
Oct -05
856
175,139
1,701
193
8.0
107
Nov -05
580
175,719
1,589
187
6.0
97
Dec -05
0
175,719
1,413
181
0.0
0
Jan -06
421
176,141
1,000
185
7.0
60
Feb -06
319
176,460
715
190
7.2
44
Mar -06
39
176,499
430
200
1.4
28
Apr -06
1,326
177,825
2,100
194
10.0
133 .
May -06
553
178,378
840
184
11.0
50
Jun -06
895
179,273
505
181
30.0
30
Jul -06
980
180,253
600
185
27.0
36
Aug -06
0
180,253
600
222
0.0
0
here: Hydrocarbons Removed (Ibs /month) = Influent Concentration (ppmv) X 10 -6 X Influent Flow Rate (scfm)
X 1 lb-mole/379.5 U X 86 Ib/lb-mole) X 1440 (min/day) X Run Time (days/month
EZ C Remediation Table 5-1
Project Number 1803BK26
TABLE 5
SUMMARY OF HYDROCARBON MASS REMOVED USING VE/GASS
(based on influent concentrations)
MINIT STOP MARKET
2900 Union Avenue
Bakersfield, California
FUEL HYDROCARBON MASS REMOVED TRENDS
200,000
U)
150,000 ..... - ---------------------------------
+a 100,000 --------------------------------------------------
E50,000 - -------------------------------------------------
0
ro 0 p ro
00 00 00 z z 00 z 00 z z z Q3 00 Q Op
`5 \'1. `t, `L `L `L `5 \`L `5 \`L `5 \'1.
Nti1 �,1 �1 cam\ �\ Cpl N tit �\ p\ �1
— -total in Ibs
Month -Year
-- -Ibs /month
4,500
4,000
3,500
0 3,000
s2,500
N 2,000
E 1,500
1,000
500
0
FUEL HYDROCARBON MASS REMOVED
(Ibs /month)
July 1, 2008
90,000
80,000
70,000
60,000 f3
50,000 o `
40,000 E
30,000 SO
20,000
110,000
---------------------------- - - - - -- Seriesl --- - - - - --
- --------------------------- - - - - -- ------ - - - - --
-------------------------------- 2 per. Mov. Avg. --- - - - - --
- - ----------------------------- - - - - -- (Series-)------------- - - - - --
a----------------------------------------------------------- - - - - --
,-a - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
,Oh ,Oh ,O� O� ,O� ,O� ,Orb ,Orb Orb Orb
PJO' Oeo lea PQc ,J�, PJO',
Month -Year
E2 C Remediation Table 5-2
Project Number 1803BK40 July 1, 2006
12/12/05
1 1,659
TABLE 6
SUMMARY OF INFLUENT VAPOR ANALYTICAL DATA
MINIT STOP MARKET
2900 Union Avenue
Bakersfield California
24
31
Date
TPH /G`
......................................
MtBE
...............................
B T E X
..................... ...............................
(P P mV
TOTAL
mV
01/24/06
FID
m
°/G
Difference
01/31/05 1
1,747
7
7
70 1
42
34
1,900
1 348
1,300
46.15
02/14105
840
6
ND
50
40
70
1,000
15
2,600
-61.54
03/07/05
4,937
20
ND
83
63
117
5,200
10
3,150
65.08
04/26/05
2,221
2
23
58
54
44
2,400
10
1,800
33.33
05/09/05
1 2,270
12
9.1
51
34
36
2,400
22
1,550
54.84
08/31/05
4,580
50
60
150
80
130
5,000
3,300
51.52
09/26/05
4,770
43
60
180
50
140
5,200
5,300
-1.89
10/17/05
1,907
7
18
1 33
1 50
1 42
2,050
11/22/05
1,209
5
15
1 36
1 50
1 42
1,352
12/12/05
1 1,659
9
24
31
52
59
1,825
01/24/06
1 918
3
9
12
28
33
1,000
03/07/06
1 348
ND
ND
20
34
28
430
512
-16.02
04/25/06
1,909
15
28
35
61
52
2,100
1,600
31.25
05/22/06
755
ND
10
22
38
15
840
800
5.00
06/27/06
367
ND
4
10
19
10
410
1,100
-62.73
07/24/06
530
ND
9
12
22
27
600
650
-7.69
Avera a
1,935
15
21
53
45
55
11.44
Total 30,967 179 276 853
na = Not analyzed
nd = Not detected at or above the method detection limit
ppmv = Parts per million by volume
PHg analysis method includes BTEX and MtBE
717
879
TOTAL
33,707
TOTAL
23,662
SUMMARY OF TEDLAR BAG INFLUENT
CONCENTRATIONS
6,000
> I I I I I I I I I I I I I I I I 1 I I
I I I I I I I I I I
I I I I I I I I I 1 I
CL. 5000 - - -I - -- - �--- r--- 1--- r- - -1 - -- - r-- �--- r--- 1--- -r--- 1--- r--- 1---- r-- -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
.� 4.000 -- --I - -- -- --- r--- I - - -r- - r - - -- 1--- r I--- T--- r-- 7- - -r - -�
I I I I I I I I I I I I I i I I
C I I I I I I I I I I I I I I I I I I
I I I f I I I 1 I f I I I I f
}, 3.000 ----- - i - - - r - -- -r - - -r-- - -�- --r - -- - -� - -- --�
I I I I I I I I I 1 I I I I I I I I I
I I I t I I I I
C 2,000 - -- -- r-- 7--- r--- i--- r--- I-- -� - - -r -1 - - -r -- 1--- Y--- 1 - - -r- --- �- --r- -�
I I I I I I I I 1 I I I I I I
I I I I I I I I I 1 i I I I I I I I
V I I I I I I I I I I 1 I I I I I I I
C 1,000 - -�- -r -- --- r-- -I--- r------ ---r-- --- r - --1 -- - --i-- r - - -r- �- - -r - -7
O I 1 1 1 1 I I I I I I I I I I
V I I I I I 1 I I 1 I I 1 I I I I I
O I I I I 1 I I I I I
>,o' .�o �.� °h �.o' .goo .\& `� ° ,�o .\& `o' �\d° '.\d° .goo `goo '`o. '`oo .\d° '.ado
o°\o 'ZO, dP o'��o oo�o oo�o ` °�o >``�o N4,
Month /DayYear
E2 Remediation Table 6 -1
Project Number 1803BK26
July 1, 2008
E2 C Remediation Table 7 -1
TABLE 7
SUMMARY OF EFFLUENT VAPOR ANALYTICAL DATA
MINIT STOP MARKET
2900 Union Avenue
Bakersfield, California
Date
...... TPH /G
MtBE
B
T
... E ..............
X
...... TOTAL
01/31/05
1.50
0.00
0.00
0.00
0.12
0.10
1.72
02/14/05
0.40
0.00
0.00
0.00
0.00
0.00
0.40
03/07/05
2.80
0.00
0.00
0.02
0.00
0.00
2.82
04/26/05
0.60
0.00
0.00
1.02
0.00
0.00
1.62
05/09/05
0.40
0.00
0.00
0.00
0.00
0.00
0.40
08/31/05
4.40
0.00
0.80
0.50
0.00
0.50
6.20
09/26/05
0.10
0.00
0.00
0.00
0.00
0.00
0.10
10/17/05
0.10
0.00
0.00
0.00
0.00
0.00
0.10
11/22/05
0.10
0.00
0.00
0.00
0.00
0.00
0.10
12/12/05
0.10
0.00
0.00
0.00
0.00
0.00
0.10
03/07/06
0.00
0.00
0.00
0.00
0.00
0.00
0.00
04/25/06
0.00
0.00
0.00
0.00
0.00
0.00
0.00
05/22/06
0.00
0.00
0.00
0.00
0.00
0.00
0.00
06/27/06
0.00
0.00
0.00
0.00
0.00
0.00
0.00
07/24/06
0.00
0.00
0.00
0.00
0.00
0.00
0.00
Average
0.95
0.00
0.07
0.14
0.01
0.05
1.23
TOTAL
Total
10.50
0.00
0.80 1.54
0.12
0.60
13.56
Notes:
na = Not analyzed
nd = Not detected at or above the method detection limit
ppmv = Parts per million by volume
L-
I
E2 C Remediation Table 7 -1
Proiect Number 1803BK26 July 1. 2008
APPENDICES
Appendix A Fourth Quarter 2007 Groundwater Purge Data Sheets
Appendix B Fourth Quarter 2007 Groundwater Analytical Laboratory
Report and Chain -of- Custody
Appendix C First Quarter 2008 Groundwater Purge Data Sheets
Appendix D First Quarter 2008 Groundwater Analytical Laboratory
Report and Chain -of- Custody
Appendix E Purge Water Transport Manifests and Recycling
Certificates
Appendix F GeoTracker Upload Confirmation Reports
IE2C.Remediation Appendices
ProiacLumber 1803BK26 July 1. 2008
APPENDIX A
Fourth Quarter 2007 Groundwater Purge Data Sheets
E2C Remediation Appendix A
E2C Remediation
Groundwzter Scientists : Environmental Consultants
5300 Woodmere Drive, Suite 105; Bakersfield, Califomia 93313
Telephone: (661) 831-6906 / Facsimile: (661) 831-6234
Water Quality Sampling Record
and Well Development Data
............................................ .......... ..... . .... ............ .
SAMPLE ID / WELL #:— erX W - I
E2C REM. PROJECT t. 1 803
PROJECT NAME: rn I A
DATE SAMPLED:-
SAMPLED BY:—
.......................... -- ----
DEPTH TO WATER
TOTAL DEPTH OF WELL-
WELL DIAMETER-,
CASING VOLUME:
PURGE METHOD:
................................... ............
112-06
Lj 15'
$91
AJV
V MaS M-1
-M9 V M RUMM
TIME
TEMP
pH
(UNITS)
SEC
(Mmhos/cin)
REMARKS
(COLOR, TURBIDITY, ETC.)
INTAKE
DEPTH
RATE
(GPM)
CUM. VOL
(GAL)
wEuva'
PUMPED
0
67,1
-7-79
J3
1:
69,0
7-96
.oe
41? Air
10MR,
Well Capacity, 2"- 0.1632gallon/Unearfoot
4* - 0.6528 gallonAlnear That
6" - 1.4688 gallonflinear That
SAMPLEDA Fr. FINAL DEPTH TO WATER- Fr. 3 CASING VOLUMES GALS.
NOTES
E2C Remediation
Groundwater Scientists : Environmental Consultants
Water Quality Sampling Record
5300 Woodmere Drive, Suite 105; Bakersfield, California 93313
and Well Development Data
Telephone: (661) 831 -6906 / Facsimile: (661)831 -6234
.......................... ... ....................
SAMPLE ID l WELL #-- ILI (i-I ' a
DEPTH TO WATER: 111166
E2C REM. PROJECT* % H03
TOTAL DEPTH OF WELL: 13 5., %S
PROJECT NAME 5T-0C
WELL DIAMETER; 41
DATE SAMPLED: / (1 _ /6 -• y7
CASING VOLUME q 3
SAMPLED BY: ) os �cG
PURGE METHOD: �� %� �' ►�'�
TEMP
pH
SEC
REMARKS
TIME
INTAKE
RATE
CUM. VOL
WELL VOL
(F")
(UNITS)
(mmhoslcin)
(COLOR, TURBIDITY, ETC.)
'
DEPTH
(GPM)
GAL
PUMPED'
7. 43
. Y3
cleat No od&r
31
U
-&;t6
e e°. a & e, de r
1:35
C6.7
G 21
f
).,r
'
1* 3q
Ia
66.5
6,3o
5-a
elew oar
`1 ; qq
Ge+��
_
Well Capacity: 2"- 0.1632 gallon/lInear foot
4"- 0.6528 gallon16near foot
'
6"- 1.4688 gallon/linear foot
SAMPLED A I/ / Fr. FINAL DEPTH TO WATER
FT. 3 CASING VOLUMES / GALS.
NOTES:
1
EZC Remediation
IGroundwaterSdisntfsts
: Environmental Consultants
Water Quality Sampling Record
5300 Woodmere Drive, Suite 105; Bakersfield, California 93313
and Well Development Data
Telephone: (661) 831 -6906 / Facsimile: (661) 831 -6234
.... ............................... ..... .. ................ .
SAMPLE ID / WELL.# r-yf i j - .3
DEPTH TO WATER: 3.
E2C RML PROJECT*. Ayo
TOTAL DEPTH OF WELL:- g
PROJECT NAME: i-h
WELL DIAMETER; ay
DATE SAMPLED; 10 - 1E-- 07
CASING VOLUME:
SAMPLED BY: S �� t
PURGE METHOD:
2-• � _ It'_. , _ VMM
TEMP
pH
SEC
REMARKS
T1ME
INTAKE
RATE
CUM. VOL
WELL VOL
(F")
(UNITS)
(nmftslcin)
(COLOR, TURBIDITY, ETC.)
'
DEPTH
GPM
GAL
PUMPED
10-37 t7
;3
67,5r
I / D ✓
. 57
to aB
,J7
'
1D'.as
/%
67.5
i S7
e l.`t,�- lar
1
-
Well Capacity; 2"- 0.1632 galloMinear foot
4" - 0.6528 gallon/Unear foot
6"- 1.4688 gallonlMear foot
SAMPLED A I 6 FT. FINAL DEPTH TO WATER
// 3, /,9
FT. 3 CASING VOLUMES 6 ;t GALS.
' NOTES: !'h W - / S -�,� 1jc�
/� �Cc: P
o—^ H7 G✓ - 3
E2C Remediation
Groundwater Scientists : Environmental Consultants
5300 Woodmere Drive, Suite 105; Bakersfield, Callfbmia 93313
Telephone: (661) 831-6906 1 Facsimile: (661) 831-62L4
Water Quality Sampling Record
and Well Development Data
.............. ...... ......... ....................... ....... .......
SAMPLE ID I WELL 4- M d-i
E2C REM. PROJECT: Zgo.7
_,ogi, ,j/ � -!5 7-6 #0
PROJECT NAMF- '
DATE SAMPLED: /063
- -16— r7 -
SAMPLED BY: aLl-c e
...... . .. ...
........
.... .. .... ..................
DEPTH TO WATEI;t
TOTAL DEPTH OF WELL:
WELL DIAMETER;
CASING VOLUME:
PURGE METHOD:
...... .............................................
//2. V0
L3 0 sr
pt
3,
vr If
4
TIME
'-�M'23P PRI - 0 -, 4008Y�Tk§
X
TEMP
(Fn
pH
(UNITS)
SEC
(MmhoW=)
REMARKS
(COLOR, TURBIDITY, E TC.)
INTAKE
DEPTH
RATE
(GPM)-
CUM. VOL
WELL VOL
PUMPED
q;03
1
0 1
67,0
7,87
r B
dear ovew
adev-
q%,
C
67,1
7.77
,
clear .,#Vr-*
odof-
q 12
1
67,0
7,73
,
r
ete-mP, /ya
q, 14
67, 1
7. 75
'OF
Well Capacity: 2* - 0.1632 gaRontlinear foot
4! - 0.6528 gallonflinear foot
6* - 1.4688 gallor0near That
SAMPLED A- FT. FINAL DEPTH TO WATER: LFr. 3 CASING VOLUMES = GALS.
NOTES:
E2C Remediation
Groundwater Scientists : Environmental Consultants
5300 Woodmere Drive, Suite 105; Bakersfield, California 93313
Telephone: (661) 831 -6906 1 Facsimile: (661) 831 -6234
Water Quality Sampling Record
and Well Development Data
...................... .............................. ......................
SAMPLE ID / WELL t. m W - S
E2C REM. PROJECT* / f1D3
PROJECT NAME: /?7ii1 % l).°
DATE SAMPLED: /O -/6--e 7
SAMPLED BY:
............
.... ........... .............................................
DEPTH TO WATER:
TOTAL DEPTH OF WELL:
WELL DIAMETER;
CASING VOLUME:
PURGE METHOD:
...._......................:...
117,70
13-51 v u
•
N
�`a.
TIME
n��Fa6";`CCi.l(;, •
TEMP
(F")
pH
(UNITS)
SEC
(mmhoslcm)
REMARKS
(COLOR, TURBIDITY, ETC.)
INTAKE
DEPTH
RATE
GPM
CUM. VOL
GAL
WELL VOL
PUMPED
8,qo
'7.31
G e r
�••i�
69.7
( , �
C►
l 1
Ll�pi ��s c)rr
8,4L
G
0-0
T-5
14
cleat lVo o.) -r
9'. Li
G1
��,�
7. SnZ
c�
-
/
-- - -
j•S`S
Yh� ?Fe'�.�%`r,�6Y'uSC
�yryy`h
_ ��i�,�1.•..�-
:.Y9... �
-
�,. � ..
._. . -... _
Z,.. �y
_ _ .l 'L•: 3^,
Well Capacity:- 2 - 0.1632 gailonflinear foot
r - 0.6528 gallonAinear foot
6" - 1.4688 gallonAinear foot
ISAMPLED A 12 1 ' FT. FINAL DEPTH TO WATER: I If -7,,7-7 FT. 3 CASING VOLUMES = o ' q/, GALS.
NOTES:
IPP iect Number 1803BK26 July 1. 2006
APPENDIX B
' Fourth Quarter 2007 Groundwater Analytical Laboratory Report
And Chain of Custody
E2C Remediation Appendix 8
PROVERA ANALYTICAL LABORATORIES
■� � � � f1� f1r f1• fi• � �
Chain of Custody Form
Client Name: a C /ze,ie) ; e- f.' y,,,
Analysis Requested
Sample Matrix
Project Name: ✓ 5 ?a O
N
Q
w
�
0°
N
Q
w
w
o
m
f
to
0
_°
IL-
N
a
°�
N
a
a-
w
8
o
N
co
d
w
i3
c°n
m
Q
W
w
a
°
cnL
m
J
o
M
f_, I Aqueous
a Soil ,
Client Address: 5300 Woodmere Dr. Suite 105 Bakersfield, CA
Project Manager: %� / ,y,
��( �oe. (y
a Acidified
Sampler Na me: C a ��w
J �-C u`^
Sample Date
Sample Time
Sample Description and Container Type
Comments
�
o r
x
x
-
V
1 �: O
- 3 uc�
°�
P`
>`
�- w�,o
Sampling Event: (1A Ce7kIr- Q-7 EDF Type:GW Monitoring C,-,-Other
Turnaround Time Requested: 24 Hour 48 Hour. 5 -Day Standard
Relinquished B :
Date: %p - 16 -o-1
Relinquished By: Date:
Received By:
Date: I
Received By: Date:
Pro Vera
Analytical Laboratories, Inc.
Laboratory,Report
Certification# 2606
CLIENT:. E2C. Remediation -. Project Name: Minit Stop
5300 Woodmere Drive, Suite 105
Bakersfield, CA 93313 Matrix:. AQ
Sampled by: J. Irwin
TESTS:. TPH Gas by EPA 8015M TPH g Analysis: 10/16/2007
Date of Report: 10/18/200.7
Units: ug/l
Sample: #:. .
9476 -001
. 9476 =005
9476 -004
9476 =003
9476 -002
Date Sampled:
.10/16/2007
.10/16/2607,10/16/2007
10/16/2007
10/16/2007
DL ug/l
Sample Description:
Travel Blank
MW -1
MW -2
MW4
MW -5
TPA Gasoline
ND
ND
ND
ND
ND
50
Surrogate Recovery %
92 93 . 90 91 . 92
Sample #:
9476 -006
9476 7007 .
Date Sampled: -
10/16/2007,,,16/16/2007
DL ug/l
Sample Description:
MW -3
MW -6
TPH Gasoline
14,000
14,000
500
,Surrogate Recovery %
89 = 90
DL = Detection Limit
1 ND - Non - Detect at given DL
1
P. cipa nelyst:'Alexander Candia
' 5221 Woodmere Drive, Bakersfield, CA 93313
Phone: (661) 827 -5240 Fax: (661)827 -5244
1
Analytical Laboratories, -Inc.
'- Certification # 2606
CLIENT., EZC Remediation.
5300 Woo�dmere -Drive Suite 105'
Bakersfield, CA 13313
Project ID : Min it Stop
Analysis Type: EPA Method 8260B
' Analysis Date: 10/18/2007
Report Date : 10118/2007
Sample ID.::. 9476 -001 Travel: Blank
' Method RL
Multiplication
Analyte Result Units Method RL Factor
'
5 Oxygenates
0.5
1
0.5
t- Butanol,(TBA) Tert-Butyl Alcohol
ND
ug/L
0.5
1
Methyl Tert-Butyl Ether (MTBE)
ND
ug/L
'
Diisopropyl'Eiher (DIPE)
ND
ug/L
Ethyl Tert-Butyl Ether (ETBE)
ND
ug/L
Tert-Amyl Methyl Ether (TAME)
ND
ug/L
'
BTEX Components
Benzene
ND
ug/L
1
Toluene:
ND
ug/L
Ethylbenzene
ND
ug/L
m , p & o Xylenes
ND
ug/L
'
'Lead Scavengers
1,2 Dichloro 'ethane (1,2 DCA)
ND
ug/L
1;2 Dibromo ethane (EDB)
ND
ug/L
'
Internal Standards
Results
% Recovery
Benzene, fluoro
50
100%
Benzene -d5, chloro-
50
100%
1,4- Dichlorobenzene -d4
50
100%
Surrogate Standards
'
Methane,,dibromofluoro-
58
116% "
1';2- Dichloroethane -d4
55
110%
Toluene-c!8'"
51
102%
p -Bro fl robenzen (BFB)
51
102%
Pri ipal )Cnalyst: Alexander Candia
2:5
1
0.5
1
0.5
1
0.5
1
0.5
1
0.5 1
0.5 1
0.5 1
0.5 1
0.5 1
0.5 1
5221 Woodmere Drive, Bakersfield, CA. 93313
Phone: (661) 827 -5240 Fax: (661)827 -5244
P rot/ e a r
Analytical Laboratories, Inc.
ICertification # 2606
CLIENT; E2C1 Remediation
Surrogate Standards
'
Methane, 'dibromofluoro-
.5300 Woodmere Drive,
Suite 105.
1,2- Dichloroethane -d4
58 116%
Bakersfield, CA 93313
T61uene -d8
54 108%
'
'
.. Project ID : Minit Stop
PrNcipal nalyst: Alexander•Candia
'
Analysis Type: EPA, Method 8260B
5221 Woodmere'Drive, Bakersfield, CA 93313
Phone: (661) 827 -5240 Fax: (661)827 -5244
Analysis Date: 10/18/2007 '
'
Report Date : 10/18/2007
Sample ID: 9476 -005 MW -1
' Anal. yt e .
Result,
Units
Method RL
'
5 Oxygenates
.t- Butanol (TBA) Tert-Butyl Alcohol
ND
ug/L
2.5
Methyl Tert-Butyl Ether (MTBE)
ND .
ug/L -
0.5
'
Diisopropyl•Ether(DIPE)
ND
ug/L
0:5
Ethyl Tert -Butyl Ether (ETBE)
ND
ug/L
0.5
Tert-Amyl Methyl Ether (TAME)
ND
ug/L
0.5
' BTEX Components
Benzene
ND
ug/L
0.5.
Toluene
ND
ug/L,
0.5
' Ethylbenzene-
ND
ug/L
0.5
m ; p &-o Xylenes
ND
ug/L
0.5
Lead Scavengers
1',2•Dichloro ethane (1;2 DCA)
ND
ug/L
0.5
1,2 Dibromo ethane,(EDB)
ND
ug/L
0.5
1 Internal Standards
Results
%Recovery
Benzene, fluoro.
50
100%
Benzene -d5, chloro-
' 1',4= DichlorobenzeneA4
50
50
100%
100 %
Method RL
Multiplication
- Factor
1
1
1
1
1
1
1
1
1
1
1
Surrogate Standards
'
Methane, 'dibromofluoro-
55 110%
1,2- Dichloroethane -d4
58 116%
T61uene -d8
54 108%
'
p76rom fluorobenzene (BFB)
55 110%
PrNcipal nalyst: Alexander•Candia
'
5221 Woodmere'Drive, Bakersfield, CA 93313
Phone: (661) 827 -5240 Fax: (661)827 -5244
1
1
1
1
1
1
1
1
1
1
1
Pro Vera (�` -
Analytical Laboratories, Inc..
0.5 1
0.5 1
5221 Woodmere Drive, Bakersfield, CA 93313
Phone: (661) 827 -5240 Fax: (661)827 -5244
1
Method RL
Multiplication
Method RL
Certification # 2606
2.5
1
I
CLIENT:. EZC Remediation
0.5
1
0.5
5300 Woodmere Drive,
Suite 105
1
'0.5
Bakersfield, .CA 93313
0.5
1
'
Project ID : Minit Stop
0.5
1
Analysis Type: EPA Method 8260B
Analysis Date: 10118/2007
'
Report Date : 10/18/2007 '
Sample 1b: 9476- 004 MW -2
'
Analyte
Result
units
I5-
Oxygenates
t- Butanol. (TBA) Tert-Butyl Alcohol
ND .
ug/L
Methyl Tert-Butyl Ether (MTBE)
ND
ug/L
I
Diisopropyl Ether (RIPE)
ND
ug/L
Ethyl Tert-Butyl Ether (ETBE)
ND'
ug/L
Tert-Amyl Methyl Ether (TAME)
ND
ug/L
BTEX Components
Benzene
ND
ug/L
Toluene
ND
ug/L
Ethylbenzene"
ND
ug/L
rn., p'& o Xylenes
ND
ug/L
'
Lead Scavengers
1,2, Dichloro ethane (1,2 DCA)
ND
ug/L
:•1,2 Dibromo ethane (EDB)
ND
ug/L
Internal Standards.
Results
% Recovery
Benzene,fluoro
50
100%
Benzene -d5, chloro-
50
100%
1,4- Dichlorobenzene -d4
50
100%
Surrogate Standards
'
Methane, dibromofluoro-
57
114%
1,2- Dichloroethane -d4
57
114%
Toluene -d8
50
100%
'
p-Bro orobenzene (BFB)
52'
104%
P . ncipa Analyst: Alexander Candia
0.5 1
0.5 1
5221 Woodmere Drive, Bakersfield, CA 93313
Phone: (661) 827 -5240 Fax: (661)827 -5244
1
Method RL
Multiplication
Method RL
Factor.
2.5
1
0.5
t
0.5
1
0.5
t
0.5
1
'0.5
1
0.5
1
0.5
1
0.5
1
0.5 1
0.5 1
5221 Woodmere Drive, Bakersfield, CA 93313
Phone: (661) 827 -5240 Fax: (661)827 -5244
1
i
roue ra
Analytical Laboratories, Inc.
5221 Woodmere Drive, Bakersfield, CA 93313
Phone: (661) 827 -5240 Fax: (661)827 -5244
1
Certification # 2606
CLIENT E2C Remediation
"
5300. Woodmere Drive,
Suite 105
Bakersfield, .CA '93313
:
Project ID :. Minit Stop
Analysis Type- EPA., Method 8260B
Analysis Date: 10/18/2007
Report Date : 10/18/2007
Sample ID : 94767006 "f1AW -3
Method RL
Multiplication
Analyte
Result
Units
Method RL
Factor
1
5 Oxygenates
t,Butanol (TBA) Tert-Butyl Alcohol
ND
ug/L
2.5-
1
Methyl Tert-Butyl Ether (MTBE)
NO
ug/L.
0.5
1
1
Diisopropyl Ether (DIPE)
ND
ug/L
0.5.
l
Ethyl Tert-Butyl Ether (ETBE)
ND
ug/L
0.5
1
Tert-Amyl Methyl Ether (TAME)
ND
ug/L
0.5
1
BTEX,Components
Benzene
ND
ug/L
0.5
1
Toluene
2.5
ug/L
0.5
1
I'
Ethylbenzene
190
ug/L
5.0
10
m , p &,o Xylenes
.190
ug/L
5.0
10
Lead- Scavengers
1,2.Dichloro ethane (1,2 DCA)
ND
ug/L
0.5
1
1,2 Dibromo ethane (EDB)
ND
ug/L
0.5
1
Internal .Standards
Results
% Recovery
Benzene, fluoro
50
100%
'
Benzene -d5, chloro-
1,4- Dichlorobenzene -d4
50
50
100%
100% .
Surrogate Standards
Methane, dibromofluoro-
54
108%
1,2- Dichloroethane -d4
52
104%
'
Toluene -d8 ' 55 .
p -Brom fl orobenzene (BFB) 51
110%
102%
P ' cipal nalyst: Alexander Candia
5221 Woodmere Drive, Bakersfield, CA 93313
Phone: (661) 827 -5240 Fax: (661)827 -5244
1
Provers --
Analytical Laboratories, Inc.
1
Certification # 2606
'
CLIENT: :E2C Remediation
5300 Woodm`ere'DDrive,'Suite 105
Bakersfield, CA. 93313.,
Project ID : Minit Stop
Analysis Type: EPA Method 82608
Analysis Date: 10/18/2007
'
Report Date : 10118/2007
Sample ID : 9476=003 MW4
Method RL
1
Multiplication
Analyte
Result
Units Method.RL
Factor
'
5 Oxygenates
t- Butanol (TBA) Tert-Butyl Alcohol
ND
ug/L 2.5
1
Methyl Tert-Butyl Ether (MTBE)
ND,
ug/L 0.5
1
'
Diisopropyl Ether (DIPE)
ND
ug/L 0.5
T
Ethyl.Ter t -Butyl Ether (ETBE)
ND
ug/L 0.5
1
Tert-Amyl Methyl Ether -DAME)
ND
ug/L 0.5
1
tBTEX
Components
Benzene
ND
ug/L 0.5.
1 .
Toluene
ND
ug/L 0.5,
1
1
Ethylbenzene
ND
ug/L 0.5
1
m , p & o Xylenes '
ND
ug/L 0.5
t
Lead Scavengers
,.
1,2 Dichloro ethane (1,2 DCA)
ND_
ug/L 0.5
1
1,2 Dibrorno ethane (EDB)
ND
ug/L 0.5
1
Internal Standards
Results
% Recovery
Benzene, fluoro
50
100%
Benzene -d5, chloro-
50
100%
'
1,4- Dichlorobenzene -d4
50
100%
Surrogate Standards
Methane, dibromofluoro-
61.
122%
1,2- Dichl6roethane -d4
63
126%
Toluene -d8.
50
100%
1
p Brom fluobbenzene (BFB)
50
100%
'rriNcipall
alyst: Alexander Candia
5221 Woodmere
Drive, Bakersfield, CA 93313
Phone: (661) 827 -5240 Fax: (661)827 -5244
1
P rove ra
Analytical Laboratories, Inc.
Certification # 2606
CLIENT: E2C Remediation
5300 Woodmere Drive, 'Suite 105
Bakersfield, CA 93313.
Project ID : Minit Stop,
Analysis.Type: EPA Method 8260B
' Analysis Date: "10/1,8/2007. .
Report Date': 10/18/2007
Sample ID :. 9476=002 MW -5
Method RL
' Multiplication
Analyte Result Units Method RL Factor
5 Oxygenates.
t- Butanol (TBA) Tert-Butyl Alcohol ND ug/L 2.5 I
Methyl Tert- Butyl. Ether (MTBE)' ND ug/L 0.5 1
I Diisopropyl Ether (DIPE) ND ug/L 0.5 1
Ethyl Tert-Butyl Ether (ETBE) ND ug/L 0.5 1
Tert- Amyl Methyl Ether (TAME) ND ug/L 0.5 1
BTEX Components
Benzene ND ug/L ' 0.5 1
Toluene ND ug/L 0.5 1
Ethylbenzene ND ug/L 0.5 1
m , p & o Xylenes ND ug/L 0.5 1
1 Lead Scavengers
1,2 Dichloro ethane (1,2 DCA) ND ug/L 0.5 1
1,2 Dibromo ethane (EDB) ND ug/L 0.5 1
' Internal Standards Results % Recovery
Benzene, fluoro 50 100%
Benzene -d5, chloro- 50 100%
' 1;4- bichl6r6beh2ene -d4 '50 100%
Surrogate Standards
Methane, dibromofluoro - 52 104 %.
1,2- Dichloroeth6ne -d4 51 102%
Toluene -d8 55 110%
p-Bro ofluorobenzene (BFB) 54 108% .
Pr ncip Analyst: Alexander Candia
' 5221 Woodmere Drive, Bakersfield, CA 93313
Phone: (661) 827 -5240 Fax: (661)827 -5244
P rove ra U
Analytical Laboratories, •Inc.
Certification # 2606
CLIENT: EZC Remediation
` 5300 Woodmere "Drive, Suite 105
Bakersfield, CA 93313
Project ID Minit Stop "
Analysis Type` EPA Method 82608
Analysis Date: 10/18/2007
Report Date : 10/18/2007
Sample ID : 9476 -007 MW -6
Method RL
Multiplication
Analyte Result Units Method RL- Factor
5 Oxygenates
t- Butanol (TBA) Tert=Butyl Alcohol
ND
ug/L
2.5
Methyl Tert-Butyl Ether(MTBE)
ND
ug/L
0.5
Diisopropyl Ether (DIPE)
ND'
ug/L
0.5
Ethyl Tert-Butyl Ether (ETBE)
ND
ug/L
0.5
Tert-Amyl Methyl Ether (TAME)
ND
ue /L
0.5
BTEX Components
Benzene
ND
ug/L
Toluene,
2.5
ug/L.
Ethylbenzene
190
ug/L
m , p-& o'Xylenes
190
ug/L
Lead Scavengers
1,2 Dichloro ethane (1,2 DCA)
ND
ug/L
1,2 Dibromo ethane (EDB)
ND
ug/L
Internal Standards
Results
% Recovery
Benzene, fluoro
50
100%
Benzene -d5, chloro-
50
100%
1,4Dichlorobenzene -d4
50
100%
Surrogate Standards
Methane, dibromofluoro-
49
98%
1,2- Dichloroethane -d4
52
104%
Toluene -d8
49
98%
p- Bromoluprobenzene (BFB)
54
108%
PrincipaVAnalyst: Alexander Candia
0.5
6.5
5.0
5.0
0.5
0.5
5221 Woodmere Drive, Bakersfield, CA 93313
Phone: (661) 827 -5240 Fax.: (661)827 -5244
1
1
1
1
1
1
1
10
10
1
1
P rove ra
Ancilytical Laboratories, Inc.
EPA 8260B QA-QC Report
EPA 8015M. QA-QC Report.
Certification # 2606
CLIENT: E2C Remediation
53(KWoodmere Drive,
Suite'105
Bakersfield, CA 93313
Projects Covered by this QA -QC:
1GL'nit Stop
Analysis Date:: '
10/1812007
Matrix:
AQ
'
BFB:
Internal Standards
Results
% Recovery
Benzene, fluoro
50
100%
Benzene- d5, chloro-
50
400%
'
1,4- Dichlorobenzene -d4,
50
100%
Surrogate Standards
Methane; dibromofluoro=
52
104%
1,2= Dichloroethane -d4
56•
112%
Toluene 7d8
50
100%
p- Bromofluorobenzene (BFB) ".
56
112%
IB:
Internal Standards
Results
% Recovery
Benzene, fluoro '
50
100%
Benzene -d5, chloro-
50
100%
1,,4- Dichlorobenzene -d4
50
1000/0
Surrogate Standards
Methane, dibromofluoro-
52
104%
1,2- Dichloroethane -d4
51
102%
Toluene-d8
52
104%
p-Bromofluorobenzene (BFB)
56
112%
MS:
Results
% Recovery
1,1- Dichloroethene
50
100 %,
Trichloroethene
49
98%
Chlorobenzene
44
88%
Toluene
45
89%
1 Benzene
45
90%
p- Bromofluorobenzene (BFB)
49
98%
MSD:
Results
% Recovery
I , I - Dichloroethene
44
89%
Trlchloroethene
45
90%
Chlorobenzene
58
116%
Toluene',
52
105%
Benzene
1
50
100%
p- Bromofluorobenzene (BFB)
49
98%
8015M -TPHG
1
%Recovery
BFB
90%
IB
91%
MS
96%
' MSD
94%
5221 Woodmere Drive, Bakersfield, CA 93313
1
Phone:
(661) 827 -5240 Fax: (661)827 -5244
Proiect Number 18038K26 July 1. 2008
APPENDIX C
First Quarter 2008 Groundwater Purge Data Sheets
E2C Remediation Appendix C
Groundwater Scientists : Environmental Consultants Water Quality Sampling Record
5300 Woodmere Drive� Suite I OS; Bakersfield, California 93313 and Wolf Development Data
Telephone: (661) 83 1-6906 Facsimile: (66 1) 83 1-62 4
SAMPLE ID I WELL #:
.2C REM. PROJECT #: 11903
PROJECT NAME: Kj,)CrSmP
DATE SAMPLED- Ot — 17-0 r
SAMPLED BY:
DEPTH TO WATM- 1164-
TOTAL DEPTH OF WELL: t4_S
WELL DIAMETER,
CASING VOLUME: 3. 0 0
PURGE METHOD:
TIME
T
(FL)
PH
(UNITS)
EC
(Mmhoslrm)
(COLOR, TURBIDITY, ETC-)
I
INTAKE
DEPTH
RATE
(GP"
CUM.VOI-
(GAL)
WELLVOL
PUMPED
Well Capadt)r Z" - 0. 1 63Z gallon/linear foot
4" - 0. 652 8 gallonfUnear foot
6-- 1.4688gallon/ilnear foot
OWN
SAMPLED A' 12,0-0 FT; FINAL DEPTH TO WATEP, 111. it Fr. .3 CASING VOLUMES = q.00 GALS.
NOTE:
E2C Remediati ®n
Groundwater Scientists : Environmental Consultants
5300 Woodmere Drive, Suite l OS; Bakersfield, California 933 13
Telephone: (661) 831 -6906 / Facsimile: (66 1) 831 -6234
AMPLE ID ! WELL #:
�2C REM. PROJECT #: 180+3
PROJECT NAME: Ko3C ref
DATE SAMPLED: 61-0- 0 0
SAMPLED BY : %.
Water Quality Sampling Record
and Well Development Data
DEPTH TO WATER: it4-4S
TOTAL DEPTH OF WELL: 13S 3 S
WELL DIAMETER;
CASING VOLUME:
PURGE METHOD: dt2 U1='r
TIME
TEMP
(F" }
pH
(UNITS)
SEC
(mmhas /cm)
REMARKS
(COLOR, TURBIDITY, ETC.)
INTAKE
DEPTH
RATE
(GPM)
CUM. VOL
(GAL)
WELL VOL
PUMPED
6q4 3
49.0
•43
- oq
CAeAf -_"& aoo4.
oi%
3
ti
C-L6- ,-"0 d10 0o-
—7-72-
'1 -03
. i l
"uy - St.( &- Ird*oo-
D�r53
7.37
. 1 1
Lw091 -Suer ooeR..
soevLaao
Well Capacity: 2" - 0.1632 gallon/lInear foot
4" 0.6528 gallon/Ilnear foot
6"- 1.4688 gallon /linear foot
SAMPLED A' 120-0 FT. FINAL DEPTH TO WATER: _ I � � � ?O FT. 3 CASING VOLUMES = ^� 31 GALS.
NOTES:
EXRemediation
Groundwater Scientis . ts : Environmental Consultants
5300 Woodmere Drive, Suite 105; Bakersfield,, Califomia 93313
Telephone: (661) 831 -6906 f Facsimile: (66 1) 831 -6234
............ -.- ........
Water Quality Sampling Record
and Well Development Data
SAMPLE ID WELL #: MtJ 3
,C REM. PROJECT #:
PROJECT NAME: tAt0trSmP
DATE SAMPLED:
SAMPLED BY:
DEPTHTOWATER:-
TOTAL DEPTH OF WELL:
WELL DIAMETER-
CASING VOLUME:
PURGE METHOD: Ati -r
LUr
MEMO%
TIME
7
ft
E. -M
R-'! G- "CHA
--.r.--.E
C
TEMP
PH
(UNITS)
SEC
(Mmhos/cm)
REMARKS .
(COLOR, TURBIDrrf, ETC.)
INTAKE
DEPTH
PLATE
CGPI-0
cum. VOL
(GAL)
WE
PUMPED
(4•5
MU
.11
#^%Lb 00 07
-ID11
02,0
L
7.95
Cq
e—Lo vjv*t —cm—%4c. &*a 4—
AAF
LF, k'
10 23
-5
NI- wwwwom
g; !11,1111
WeD Capadty: 2" - 0.1632 gallon/linear foot
4" - 0.6S28 gaflon/Unear foot
6"- 1.4688 gallonlNnear foot
son
SAMPLED A' .12A.b Fr. FINAL DEPTH TO WATER: I I TU Fr. 3 CASING VOLUMES = g, jj GALS.
NOTES: M LO - (, I S 199, 0v P LA CA, 11- 0 5- N& ki - 3
E2C RE mediation
Groundwater Scientists : Environmental Consultants
5300 Woodmere Drive, Suite I OS; Bakersfield, California 93351 31
Telephone: (661) 831 -6906 / Facsimile: (66 1) 831 -6234
Water Quality Sampling Record
and
nd Well Development Data
SAMPLE ID / WELL #:
4C REM. PROJECT #:
PROJECT NAME: KtWr Sm?
DATE SAMPLED: 0 1 - I 7-01
SAMPLED BY. jL.F)Pr&eU&1%—
............
DEPTHTOWATER: - 117.1;1)
TOTAL DEPTH OF WELL 3S. oS
WELL DIAMETER,
CASING VOLUME:
PURGE METHOD: - AtiLUr-r
TIME
ffiMPUR"XHARACT.-JEN
TEMP
(F-)
pH
(UNITS)
SEC
(rnmhos/cm)
REMARKS
(COLOR, TURBIDITY, ETC.)
INTAKE
DEPTH
RATE
(CPI-)
CUM. VOL
(GAL)
WELL Mt'
PUMPED
OUT
176kA" I In P-b 680f.
44401
(0c A
'7.,q Y'
lS
63"cj.., - tj a 6 0 oA-
q
0 2
Q. OS
4
-Lr
Lr 6 &Ot-4-- #►0 ea at-,
C407
Well Capacity: Z" - 0.1632 gallon/linear foot
4" - 0.6SZ8 gaflon/finear foot
6". 1.4688 gallon/linear foot
SAMPLED A' U&-<b FT; FINAL DEPTH TO WATER. L �4 *FT. 3 CASING VOLUMES GALS.
NOTES:
E2C Remediation
Groundwater Scientists :'Environmental Consultants
5300 Woodmere Drive, Suite 105; Bakersfield, California 93313
Telephone: (661) 831 -6906 f Facsimile: (66 1) 831-6234
Water Quality Sampling Record
and Well Development Data
SAMPLE ID / WELL #:
2C REM. PROJECT #: 11903
PROJECT NAME: Mo3CrSme
DATE SAMPLED: 81-17-bq
SAMPLED BY:%. 1)"rbe"491—
DEPTH TO WATER:
TOTAL DEPTH OF WELL: 13� O0
WELL DIAMETER,
CASING VOLUME: X-13
PURGE METHOD:
TIME
.......... ...:. .P01 GE ,.0 HARACUR
SS-.- .-
T
TEMP
(Fu):
pH
(UNITS)
SEC
(Mmhoslcm)
REMARKS
(COLOR, TURBIDITY, ETC.)
INTAKE
DEPTH
RATE
(GPM)
CUM. VOL
(GAL)
WELL VOL
PUMPED
0630
66 Ap
1-C I
- 14
CL0,001 f-j b 0 0 6
to
013
6LOL..Volf- t-6• 0004--
tr.03
-14
c-,Lao - t-a a*..%-
C637
7
(.5-L.
'7.ql(
Well Capacity: Z" 0.1632 gallon/linear foot
4" - 0.6528 gallon/flnear foot
6" - 1.4688 gallon/linear foot
SAMPLED A ( Vr. D Fr; FINAL DEPTH TO WATER: 12. (• 't!e FT. 3 CASING VOLUMES = (,.4t GALS.
NOTES:
APPENDIX D
' First Quarter 2008 Groundwater Analytical Laboratory Report
' And Chain of Custody
E2C Remediation Appendix D
� 1♦ � � ll� f♦ � � �
PROVERA ANALYTICAL LABORATORIES
Chain of Custody Form
Client Name: EiCp „k;,o,.�
Analysis Requested
Sample Matrix
Project Name: %A SToP
N
Q
a
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°~°
N
`�°
w
w
m
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o
°'
�
=
°�—°
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a
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Q
w
a
°'
'`
°
°�°
W
m
o
to
'L'
>
o
N
m
®Aqueous
Soil
Client Address: 5300 Woodmere Dr. Suite 105 Bakersfield, CA.
Project Manager: ?14-s ` G6-k%- , 0
Acidified
f \
Sampler Name: � � _
Sample Date
Sample Time
Sample Description and Container Type
Comments
X
04 o
fAw -
X
y-
taw - 2
X
x
x
_
1023
�,, _ 3
�C
7-
k
K
(10
Sampling Event: Jsc&V GWNW EDF Type:GW Monitoring Other
Turnaround Time Requested: 24 Hour 48 Hour 5 -Day Standard X
.�
Relinquished By:
Date: 61. r- oY
Relinquished By: Date:
Received By:
Date: pti ,1vfqy
Received By: Date:
A
Laboratory Report
Certification # 2606
CLIENT: E2C Remediation,
5300 Woodmere Drive, Suite 105
Bakersfield, CA 93313
TESTS: TPH Gas by EPA 8015M
P roVe ra 'L
Analytical Laboratories, Inc.
Project Name: Minit Stop
Matrix:.
AQ
Sampled by:
D. Anderson
TPH g Analysis:
1/24/2008
Date of Report:
2/4/2008
Units: ug/l
1/17/2008
Sample #:
9629 -001
9629 -004
9629 -005
9629 -003
9629 -002
Date Sampled:
1/17/2008
1/17/2008
, 1/17/2008
1/17/2008
1/17/2008
DL ug/1
Sample Description:
Travel Blank
MW -1
MW -2
MW-4
MW -5
TPH Gasoline
ND
427
ND
ND
ND
50.0
Surrogate Recovery %
94.3 97.8 92.7 ' 93.4 92.6
Sample #:
9629 -006
9629 -007
Date Sampled:
1/17/2008
1/17/2008
DL ug/l
Sample Description:
MW -3
MW -6
TPA Gasoline
9,420
9,440
500
Surrogate Recovery %
94.8 95.7
DL = Detection Limit U
ND - Non - Detect at given DL
AL
Principal Analyst: Alexander Candia
5221 Woodmere Drive, Bakersfield, CA 93313
Phone: (661) 827 -5240 Fax: (661)827 -5244
t
P roVera
Analytical Laboratoi7es, Inc.
'
Certification # 2606
CLIENT.: E2C Remediation
I
5300 Woodmere' Drive,
Suite X105
Bakersfield; CA 93313
Project ID : Minit Stop
Analysis Type: EPA Method 8260B
Analysis .Date: 1/23/2008
Report Date : 214/200'8
Sample ID: 9629 -001 Travel Blank
Method RL
Multiplication
Analyte
Result
Units
Method RL Factor
I5.
Oxygenates
t- Butanol (TBA) Tert-Butyl Alcohol
ND
ug/L
2.5
1
Methyl Tert-Butyl Ether (MTBE)
ND
ug/L
'
Diisopropyl Ether (DIPE)
ND
ug/L
0.5. `
1
Ethyl Tert-Butyl Ether (ETBE)
ND
ug/L,
0.5
1
Tert-Amyl Methyl Ether (TAME)
ND
ug/L
0.5
1
iBTEX
Components
Benzene
ND
ug(L
0.5
1
'
Toluene
ND
ug/L
0.5
1
Ethylbenzene
ND
ug/L
0.5
1
m , p & o Xylenes
ND
ug/L
0.5
1
Lead Scavengers
12 Dichloro ethane (1,2 DCA)
ND
ug/L
0.5
l
1,2 Dibromo ethane (EDB)
ND
ug/L
0.5
1
Internal Standards
Results
%'Recovery
Benzene, fluoro
50.0
100%
Benzene -d5, chloro-
50.0
100%
1,4- ..Dichlorobenzene -d4
50.0
100%
Surrogate Standards
'
"Methane, dibromofluoro-
45.7
91%
1,2- Dichloroethane -d4
57.9
116%
Toluene -d8
52.0
104%
p-Br m uoro benzene (BFB)
48.2
.96%
'
fkinciparAnalystd Alexander Candia
'
5221
Woodmere Drive, Bakersfield, CA 93313
Phone: (661) 827 -5240
Fax: (661)827 -5244
�1
.ProVera
Analytical Laboratories, Inc.
Certification # 2606
CLIENT:
EX'Remediation
ND
5300 W.00dmere Drive, Suite 105
ND
Bakersfield, CA 93313
Project ID :
Minit Stop
Analysis Type:
EPA Method 8260B
Analysis Date:
1/23/2008
Report Date :
21412008
Sample ID:
9629 -004 MW -1
Analyte Result
5.Oxygenates
t- Butanol (TBA) Tert-Butyl Alcohol
ND
Methyl Tert-Butyl Ether (MTBE)
ND
Diisopropyl Ether (DIPE)
ND
Ethyl Tert-Butyl Ether (ETBE)
ND
Tert-Amyl Methyl Ether (TAME)
ND
BTEX Components
1
Benzene
ND
Toluene
ND
Ethylbenzene
ND
m , p,& :o Xylenes
ND
Lead Scavengers
ug/L - 0.5 1
ug/L 0.5 1
ug/L 0.5 1
ug/L 0.5 1
1,2 Dichloro ethane (1,2 DCA)
ND
Method RL
1,2 Dibromo ethane (EDB)
ND
Multiplication
Units
Method. RL
Factor
ug/L
2.5-
1
ug/L
0.5
1
ug/L
6.5
1
ug/L
0.5
1
ug/L
0.5
1
ug/L - 0.5 1
ug/L 0.5 1
ug/L 0.5 1
ug/L 0.5 1
1,2 Dichloro ethane (1,2 DCA)
ND
ug/L 0.5
1,2 Dibromo ethane (EDB)
ND
ug/L 0.5
Internal Standards
Resuits
% Recovery
Benzene, fluoro
50.0
100%
Benzene -d5, chloro-
50.0
100%
1,4- Dichlorobenzene -d4
.50.0
100%
Surrogate Standards
Methane, dibromofluorb-
45.6
91%
1,2- Dichloroethane -d4
59.2
118%
Toluene -d8
55.8
112%
p- Bromofluorobenzene (BFIV*'�
51.8
104%
PAircipat'Analyst: Alexander Candia
5221 Woodmere Drive, Bakersfield, CA 93313
Phone: (661) 827 -5240 Fax: (661)827 -5244
1
1'
�J-
Provera -
Analytical Laboratories, Inc.
tCertification # 2606 .
CLIENT: EZC Remediation
2.5 1
5300 Woodmere'Drive,
Suite 105
Bakersfield, CA 93313
0.5 1
Project ID : Minit.Stop
0.5 1
Analysis Type: EPA- Method :82608
0.5 1
' Analysis Date: 1/23/2008
0.5 1
Report Date : 2/4/2008
0.5 1
Sample ID : 9629 -005 MW -2
0.5 1
1 Analyte
Result
' 5 Oxygenates
t- Butanol (TBA) Tert-Butyl Alcohol
ND
Methyl Tert-Butyl Ether (MTBE)
ND
Diisopropyl Ether (DIPE)
ND
Ethyl Tert-Butyl Ether (ETBE)
ND
Tert-Amyl Methyl Ether (TAME)
ND
' BTEX Components
97%
Benzene
ND
Toluene
ND
Ethylbenzene
ND'
m , p & o Xylenes
ND
Lead Scavengers
Method RL
Multiplication
Units Method RL Factor
ug/L
2.5 1
ug/L
0.5 1
ug/L
0.5 1
ug/L
0.5 1
ug/L
0.5 1
ug/L
0.5 1
ug/L'
0.5 1
ug/L
0.5 1
ug/L
0.5 1
1,2 Dichloro ethane (1,2 DCA)
ND
ug/L
1,2 Dibromo.ethane (EDB)
ND
ug/L
' Internal Standards
Results
% Recovery
Benzene, fluoro
50.0
100%
Benzene -d5, chloro-
50.0
100%
1,4- Dichlorobenzene -d4
50.0
100%
Surrogate Standards
Methane, dibromofluoro-
40.0
80 %°
1,2- Dichloroethane -d4
54.0
108%
Toluene -d8 50.7
101%
'p- 0 orobe ene (BFB)
48.5
97%
r cipal Analyst. Alexander Candia
0.5 1
0.5 1
5221 Woodmere Drive, Bakersfield, CA 93313
'Phone: (661) 827 -5240 Fax: (661)827 -5244
1
ProVera
Analytical Laboratories, hic.
Certification # 2606
5221 Woodmere Drive, Bakersfield, CA 93313
Phone: (661) 827 -5240 Fax: (661)827 -5244 .
CLIENT: EZC. Remediation
,5300 Woodmere'Drive,
Suite 105
"
Bakersfield, CA 93313
Project ID : Minit Stop
Analysis Type: EPA. Method 82608
Analysis Date: 1/23/2008
Report Date: .2/4/2008
Sample ID: .9629 -006 MW -3
Method RL
1
_
Multiplication
Analyte
Result
Units
Method RL
Factor.
1
5 Oxygenates
t- Butanol (TBA) Tert-Butyl Alcohol
ND ..
ug/L
2.5
1
Methyl Tert-Butyl Ether (MTBE)
ND
ug/L
0.5
1
Diisopropyl Ether (DIPE)
ND
ug/L
0.5
I
Ethyl Tert-Butyl Ether (ETBE).
ND
ug/L , ,
0.5
I
Tert =Amyl Methyl Ether (TAME)
ND
ug/L
0.5
1
iBTEX
Components
Benzene
ND.
ug/L
0.5
1
Toluene
49.0
ug/L
0.5
1
Ethylbenzene
133
ug/L
5.0
10
m , p & o Xylenes
242
ug/L
5.0
10
I
Lead Scavengers
1,2 Dichioro ethane (1,2 DCA)
ND
ug/L
0.5
1
1,2 Dibromo ethane (EDB)
ND
ug/L
0.5
l
Internal Standards
Results
% Recovery
Benzene, fluoro
50:0
100%
Benzene -d5, chloro-
50.0
100%
'
1,4- Dichlorobenzene -d4
50.0
100%
Surrogate Standards
tMethane,
dibromofluoro-
40.5
81%.
1,2- Dichloroethane -d4
53.3
107%
'
Toluene -d8
e (BFB )•
52.0
47.3
104%
95%
=oflor
Pri cipal Analyst: Alexander Candia'
5221 Woodmere Drive, Bakersfield, CA 93313
Phone: (661) 827 -5240 Fax: (661)827 -5244 .
i
Pro Vera �`3:..
Analytical Laboratories, Inc.
tCertification"# 2606
CLIENT: E2C Remediation
5300'Woodmere Drive; 'Suite, 105
Bakersfield, CA 93313
Project ID :. Minit Stop
Analysis Type: EPA Method 82608 '
Analysis Date: 1123/2008
Report Date: 2/4/2008
Sample ID:- 9629 -003 MW-4
Method RL
1 Multiplication
Analyte Result Units Method RL Factor
5 Oxygenates
t- Butanol (TBA) Tert=Butyl Alcohol. ND ug/L 2.5 1
1 Methyl Tert-Butyl Ether(MTBE) ND ug/L 0.5 1
Nisopropyl Ether(DIPE) ND ug/L 0.5 1
Ethyl Tert -Butyl Ether (ETBE) ND ug/L 0.5 1
Tert=Amyl Methyl Ether (TAME) ND ug/L 0.5 1
1 BTEX Components
Benzene ND " ug/L 0.5 1
' Toluene ND ug/L 0.5 1
Ethylbenzene ND" ug/L 0.5 1
m p & o Xylenes ND ug/L 0.5 1
Lead Scavengers
1,2 Dichloro ethane (1;2 DCA) ND ug/L 0.5 l
1,2 Dibromo ethane (EDB) ND ug/L 0.5 .1
Internal Standards Results % Recovery
Benzene, fluoro 50.0 100%
Benzene -d5, chloro- 50.0 100%
1,4- Dichlorobenzene -d4 50.0 100%
Surrogate Standards
' Methane, dibromofluoro- 40.5 81%
1,2- Dichloroethane -d4 54.3 109%
Toluene -d8 53.8 108 %0
p-Bro fluor a ene (:L 47.7 95%
' P ncipal Analyst: Alexander Candia
' 5221 Woodmere Drive, Bakersfield, CA 93313
Phone: (661) 827 -5240 Fax: (661)827 -5244
I
ProVera
_
Analytical.
laboratoiles, Inc.
Certification # 2606
I CLIENT: E2C Remediation
5300`Woodmere Drive,
Suite 105,
Bakersfield, CA 93313
Project ID : Minit Stop
Analysis Type: EPA Method 82606
' Analysis Date: 1/23/2008 .
Report Date: 2/4/2008
Sample ID: 9629 -002 MW-'5
Method RL
I
Multiplication.
Analyte
Result
Units
Method RL .
Factor
5 Oxygenates
t- Butanol (TBA) Tert -Butyl Alcohol
ND
ug/L
2.5
1
Methyl Tert-Butyl Ether.(MTBE)
ND'
ug/L
0.5
1
Diisopropyl Ether (DIPE)
ND
ug/L
0.5,'
1
Ethyl Tert-Butyl Ether,(ETBE)
ND
ug/L
0.5
1
Tert-Amyl Methyl Ether (TAME)
ND
ug/L
0.5
1
IBTEX Components
Benzene
ND
uglL
0.5
1
Toluene
ND
ug/L
0.5
1
Ethylbenzene .
ND
ug/L
- m , p & o Xylenes
ND
ug/L
0.5
1
I Lead Scavengers
1,2 Dichloro ethane (1,2 DCA)
ND
ug/L
0.5
1
1,2 Dibromo ethane (EDB)
ND
ug/L
0.5
1
1 Internal Standards
Results
% Recovery
Benzene, fluoro
50.0
100%
Benzene -d5, chloro-
50.0
100%
1,4- Dichlorobenzene -d4
50.0
100%
.Surrogate Standards
jMethane, 6bromofluoro-
41.8
84%
1,2- Dichloroethane -d4 ',
54.6
109%
Toluene7d8
54.2
'111%
' p-Br uorobenzene (BFB)
50.9
102%
P incipa Analyst: Alexander Candin
5221 Woodmere
Drive, Bakersfield, CA 93313
Phone: (661) 827 -5240
Fax: (661)827 -5244
ProVera'�
Analytical Laboratories, Inc.
Certification # 2606
CLIENT:
EZC Remediation .
Methyl Tert- Butyl Ether.(MTBE)
5300 WoodmemDrive, Suite 105
Diisopropyl Ether (DIPE)
Bakersfield, CA 93313'
Project ID :
Minit Stop J
Analysis Type:
EPA, Method 82608
Analysis Date:
1/23/2008
Report Date:
2/4/2008
Sample ID:
9629 =007 MW -6
Analyte Result
5 Oxygenates
t- Butanol (TBA) Tert- Butyl _Alcohol
ND
Methyl Tert- Butyl Ether.(MTBE)
ND
Diisopropyl Ether (DIPE)
ND
Ethyl Tert-Butyl Ether (ETBE).
ND
Tert-Amyl Methyl Ether (TAME)
ND.
BTEX Components
0.5 1
Benzene
ND
Toluene
48.2
Ethylbenzene
134.
m , p & o'Xylenes .
239
Lead Scavengers
ug/L 0.5, 1
ug/L 0.5 1
ug/L 5.0 10
ug/L . 5.0 10
1,2 Dichloro ethane (1,2 DCA)
Method RL
ug/L
Multiplication
Units
Method RL Factor
ug/L
2:5 1
ug/L
Benzene, fluoro
ug/L
0.5 1
ug/L
0.5 1
ug/L
0.5 1
ug/L 0.5, 1
ug/L 0.5 1
ug/L 5.0 10
ug/L . 5.0 10
1,2 Dichloro ethane (1,2 DCA)
ND
ug/L
1,2 Dibromo ethane (EDB)
ND
ug/L
Internal Standards
Results
% Recovery
Benzene, fluoro
50.0
100%
Benzene -d5, chloro- .
50:0
100%
1,4- Dichlorobenzene -d4
50:0
100%
Surrogate Standards
Methane, dibromofluoro-
45.7,
91%
1,2- Dichloroethane -d4
56.8
114%
Toluene -d8
54.1
108%
p flu obe ene (BF:) 43.9 88%
Pri ipal Analyst: Alexander Candia
0.5
0.5
5221 Woodmere Drive, Bakersfield, CA 93313
Phone: (661) 827 -5240 Fax: (661)827 -5244
1
ProVera
Analytical Laboratories, Inc.
EPA 8260B QA -QC Report
EPA 8015M QA- QC-Riport .
Certification # 2606
CLIENT: E2C Remediation
5300 W oodmere Drive,
_ Suite 105
Bakersfield, CA 93313
Projects Covered by this QA -QC:
Minit Stop
Analysis Date:
1/23/2008
Matrix:
AQ
BFB:
'
Internal Standards
Results %.Recovery,
Benzene, fluoro
50.0 100%
Benzene -d5, chloro-
50.0 100%
I
1,4- Dichlorobenzene -d4
50.0 100%
Surrogate Standards
Methane, dibromofluoro-
37.1 74% .
1,2- Dichl6roethane -d4-
41.2 82%
'
Toluene -0 '
48.3 97%
p-Bromofluorobenzene (BFB)
45.8 92%
IB:
,
Internal Standards
Results % Recovery
Benzene, fluoro
50.0 1000/0
Benzene- d5, chloro-
50.0 1000/0
1,4- Dichlorobenzene -d4
50.0 100%
Surrogate Standards
Methane, dibromofluorc-
53.2 106%
1,2- Dichloroethane -d4
53.9 108%
Toluene -d8
48.7 97%
'
p- Bromoiluorobenzene (BFB)
46.4 93%
MS:
Results % Recovery .
I
1,1- Dichloroethene
51.2 102 %
Trichloroethene
35.4 71%
Chlorobenzene
54.2 108%
Toluene
54.2 108%
1
Benzene
37.8 76 %
p Bromofluorobenzene (BFB)
49.0 98%
MSD :..
Results % Recovery
1,1- Dichloroethene
53.2 106%
Trichloroethene
41.0 82%
Chlorobenzene
54.2 108%
Toluene
56.2 112%
'
Benzene
36.8 74%
p= Bromofluorobenzene (BFB)
50.0 100%
8015M -TPHG
'
%Recovery
BFB..
118%
1B
117%
MS
MSD
95.1%
93.8%
5221 Woodmere Drive, Bakersfield, CA 93313
Phone: (661) 827 -5240 Fax: (661)827 -5244
Proiect Number 1803BK26 July 1. 2008
APPENDIX E
Purge Water Transport Manifests and Recycling Certificates
E2C Remediation
Appendix E
1169-81-C-0 5 11477 tRay. R/nAl n=Q1f--h1A-,r=n =Ar'll 9-r-4,Q ^-nDV
NON-HAZARDOUS
1. Generator ID
-T
2. Page 1 of
3. Emergency Respo hone,
4. Waste Tracking Number
WASTE MANIFEST
.79
1
5. Generator's Name and Mailing Address
Generator's Site Address (If different than mailing address)
Generator's Phone: r"'
6. Transporter 1 Company Name
U.S. EPA ID Number
7. Transporter 2 Company Name
U.S. EPA ID Number
8. Designated Facility Name and Site Address
U.S. EPA ID Number
Facil 's Phone:
"4 i -0 0
9. Woe Shipping Name and Description
10. Containers
11. Total
12. Unit
No.
Type
Quantity
WtjVoL
M
0
4 i'2
2.
�1A
t Yy.Yx r�N�N�} Ni
3.
4.
13• Special Handling Instructions and Addilticnall Information
14, GENERATOR'S CERTIFICATION: I certify the materials described above on ft manifest are not suNect to federal regulations for reporting proper disposal of Hazardous Waste.
Generatoe.s0hror's PhnlWTyped Name
Signature Month Day Year
-j
1-
15, International Shipments
❑ Import to U.S.
❑ Export from U.S. Part of entry/exit
Transporter Sktnature (tore rts only):
Date leaving U.S.:
ir
W
16, Transporter Acknowledgment of Receipt of Materials
Transp6rlarl Printed/Typed
*nature Month Day Year,
0
CL
z
Transporter 2 Printed/Typed Name
Signature Month Day Year
17, Discrepancy
17a. Discrepancy Indication Spare ou'lity ElType.
❑ Residua ❑ Partial Fl,**n ❑ Full Rejection
Manifest Reference Number.
17D. Alternate Facility (or Generator)
U.S. EPA ID Number
Facility's Phone:
170. Signature of Alternate Facility (or Generator)
Month Day Year
Z
4 4
'dl
18. Designated Facility Owner or Operator. Certification of receipt of materials covered by the manifest except as noted in Item 17a
Printed/Typed Name
Signature Month Day Year,
7
1169-81-C-0 5 11477 tRay. R/nAl n=Q1f--h1A-,r=n =Ar'll 9-r-4,Q ^-nDV
NON - HAZARDOUS
1. Generator ID Number
2. Pap 1 of
3. Emergency Response Phone
4. Wage Tracking Number
WASTE MANIFEST
0
5. Generator's Name and Mailing Address Generators Site Address (If different than mating address)
B'A'kl'- ;45 rX
Generator's Phone: -73 1'
6. Transporter 1 Company Name U.S. EPA ID Number
7. Transporter 2 Company Name U.S. EPA ID Number
8. Designated Facility Name and Site Address U.S. EPA 10 Number
07
Facilify's Phone:
9. Waste Shipping Name and Description
10• Containers
11. Total
12. Unit
No.
Type
Qua"
wtivol.
0
P, - P A 2 Pv f uF vz
Z
W
2 .
s.
3.
tv
4.
Ms
13. Special Handling Instructions and Additional Information
14. GENERATOR'S CERTIFICATION: I certify the materials described above on this manifest are not subject to federal regulations for reporting proper disposal of Hazardous Waste.
Generator PrintediTyped. Name Signature c Month Day Year
—1
15. Internatloinal Shipments
1:1
F.
Import to U.S. Export from U.S. Pon of entry/exit
Transporter Siqnatura (fore rts onty): Date leaving U.S.:
cc
16. Transporter Acknowledgment of Receipt of Materials
uj
Transp6r1e&j Printed/Typed Name? Signature Month Day Year
0
(L
Transporter 2 PrintedlTyped Name signature Month Day Year
17. Discrepancy
17a. Discrepancy Indication Space ❑ Quantity ❑ Type ❑ Residue ❑ Partial Rejection ❑Full Rejection
Manifest Reference Number
17b. Alternate Facitity (or Generator) U.S. EPA, 10 Number
ua Facility's Phone:
Lu
17c. Signature of Aftemate Facility (or Generator) Month Day Year
Z
_y
1 B. Designated Facility Owner or Operator. Certification of receipt of materials covered by ft manifest except as noted in Item 17a
Printed/Typed Name Signature Mmt Day Yeg
11AQ.F%1 fl—n Z; 11077 IQ— OMM
�
.^
�� --
NOWHAZARDOUS
1. Generator ID Number
2. Page 1 of
3. Emergency Response Phone
4. Waste Tracldng Number
WASTE MANIFEST
1
5. Generator' s Name and Mailing Address
Generator' a Site Address (if different than mailing address)
Generator's Phone:
6. Transporl�r 1 Gompany.Name
U.S. EPA ID Number
7. Transporter 2 Company Name
U.S. EPA ID Number
8. Designated Facility Name and Site Address
U.S. EPA ID Number
Facifty's Phone:
9. Waste Shipping Name and Description
10. Containers
11. Total
12. Unit
No.
Type
Qua"
WI.Nol.
Iq
cc
3.
4.
13. Special Handling inshnfions and Additional Information
14. GENERATOR'S CERTIFICATION: I certify the materials described above on this manifest are not suboct to federal regulations for reporting proper disposal of Hazardous Waste.
Generatoes/Offeror's PdntWypeo Name
Signature Month Day Year
1 15. international Shipments Import to U.S.
Expion fr.. U.S. Port of entry/exit
Transporter Slqnature (for sports only):
Date leaving U.S.:
m
16. Transporter Acknowledgment of Receipt of Materials
Transpofter, 1 Printed(Typed Name
Signature Month. Day Year
z
Transporter 2 Printed/Typed Name
Sk_mture Month Day Yew
17. Discrepancy
17a. Discrepancy indication Space Quantity Type
Residue 0 Pat.] Rejection Full R.i..dn
Manifest Reference Number
17b. Alternate Facility (or Generator)
U.S. EPA iD Number
Facility's Phone:
LL,
17c. Signature of Afternate Facility (or Generator)
Month Day Year
18. Designated Facility Owner or Operator. Certification of receipt of materials covered by the manifest except as noted in Item 17a
PrintediTyped Name
Signature Month Day Year,
�UEMIA7�EIM F{4MW. 'S M M 011RAW M
k 2000 E. BRUNDAGE LANE, BAKERSFIELD, CA 93307 of Scrap
4 PHONE (661) 327 -3559 ISRI Recycling
WEIGHMASTER CERTIFICATE IndUSMes, Inc.
THIS IS TO CERTIFY that the following described oommodlly was weighed, measured, or counted by a weighmaster, whose signature Is on this certificate, who Is a recognized
authority of accuracy, as prescribed by Chapter 7 (commencing with Section 12710) of Division 5 of the California Business and Professions Code, administered by the Division
of Measurement Standards of the California Department of Food and Agriculture.
i
CODE COMMODITY GROSS TARE NET PRICE EXTENSION
i
i
BILL OF SALE: I warrant that I am the owner (or owner's representative) of the material described hereon and have the I _
AUTHORIZED SIGNATURE
right to sell same, that it contains no hazardous material as defined by Federal or Stale law and that for payment hereby XI ,
I received I sell and convey title to GOLDEN STATE METALS. wEIOHMASTER SIGNATURE
BRi i��4� ®H���f 600 S l - spinale- Drtt home tetmlaffi RECAP
Duplicate - Ddver re Was in hlsi4er posttetuba for fight days Comp4L
(Month) (DaY) (Year) sad of
(24 HOURS)
Name of Carrier or Carriers l7n -0aq hoop
�� today. (roW .. .. _ . _ .. ,•' - : : -- .
lines 7 & 11 .. .. _
otal Mies Driving Today Total Mileage Today I / p Main Office Address %��� / /�/ ,tom 70 8ottr/
Home Terminal Address -fivers
( I certi correct: JL
Truck/Tractor and Trailer Numbers or'
" total boors on
License Plates) I State (shove each unit) I Driver's Full Signature Co-Driver's Name duty list 7 days.
u p . Including
'DUTY Lf 6. � , f ToW hours
aralfaWe
EPER TFTFTF ill ill ill I I ITT-77 romortoa.
:,,� Lr� 70 hr. mims A• .
STING c
I I ToW howls no
DUTY duty lost B days,
D1tIVI7i6) _ I I including today.
60 Ho>a/
MGHT l 2 8 4 7 8 O 11 ooN 1 2 3 4 8 6 7 8 9 1Q 11
Drivers
RKS i . .
at A
•� y _1t ToW hours no .. .
^ duty lest 0 days,
` •V Including today. .. "
rS $
Total hours
. AAAAJJJJyyyy �, 1�+ y w J'
tomorrow. o hr. miaus
n •
UMENTS: .. .
C. - .F ..i �'•
V Tats hoes an C� ;Y_a, -'t.� i •4°t ,
or 1ltaai%st No. "' - i •it ( `.
` dory b)t 7 days.
601-LQ ' bcluding today.
/ •9youtook
per & Commodity Enter name of place you reported and where released from work and when and where each change of duty occurred. Sa conaecutke
pour on dory.
From: To: M=6% e
e
USE TIDE STANDARD AT HOME TERSONAL 0 Copyright 2005 & Published by J. J. KELLER & ASSOCIATES, INC. again.
Project Number 1803BK26 July 1 2008
` to] VAN
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Submittal Title: MINIT STOP 1007 GEO_WELL
Submittal' DatOffime , 411012007 5:05 -25 VM
-Confirmation Number.-S6978-1-77,42
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Electronic Submittal Information
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MiNIT STOP'MARKET - 70602993722 - 6ACK.TQ- SUBMIT'TAL_STAT�_S
2900 UNION AVE
BAKERSFIELD, CA 93305
GEO WELl. DATA
submitted,ft ub►niricdDpte -Q()nfirniaGon# Global<FD
NH:IIz 66A1.yW.LN= (Alj'I44. FtN) 411.012007 .5697817742 T060299372:
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1' 70602993722 MW-2' ACT 111672007 11.5.33 - N
2 T0602993722 MW -1 ACT 1116}20D7 11.5.72 N
3 T0602993722 MW -4 ACT 1716/2007 11635 N
4 TD602993722 MW -3 ACT 1/16,`2007 116.66 N
N
5 70602993722 MW -5 'ACT 1/ 1672007 1
.,iggcd in as F?CRTAftIllA790N.1.I,C (ill ('I'FI RP) d'(:,Td'fAC'1' S
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20:B1 N
N
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