HomeMy WebLinkAbout4050 GOSFORD ROAD (39)DELTA
fNInogen'
Envi-1.1 Alliance
SUSTAINABLE STRATEGIES FOR GLOBAL LEADERS
July 1, 2010
DELTA Project No. SCA405OG 1D
SAP No. 121224
City of Bakersfield Fire Department
Environmental Services
1501 Truxton Avenue, 1" Floor
Bakersfield, California 93301
Attention: Mr. Craig Perkins
Re: Response to Agency and Work Plan for Vapor Well Abandonment
Shell Branded Service Station
4050 Gosford Road
Bakersfield, California
Dear Mr. Perkins:
On behalf of Equilon Enterprises LLC dba Shell Oil Products US (SHELL),
Delta Consultants (DELTA) submits this Response to Agency and id'ork Playa
for Vapor Well Abandonment for the above - referenced site. This document
was prepared in response to a City of Bakersfield Fire Department (CBFD)
letter dated May 11, 2010 (Appendix A). The CBFD letter was in response to
DELTA's Confirmation Soil Boring Report and Case Closure Request dated
February 25, 2010. The CBFD requested a final sampling of the onsite vapor
wells and a work plan for the removal of the vapor wells.
This document presents the results of the final sampling event of onsite vapor
wells and a work plan for vapor well abandonment.
This work plan has been prepared to comply with the California Code of
Regulations, Title 23, Division 3, Chapter 16, Article 11. The following site
background information is provided and followed by a detailed scope of work
for the proposed site assessment. All work will be performed under the
supervision of a California - professional geologist and /or professional civil
engineer.
911 SOUTH PRIMROSE AVENUE SUITE K MONROVIA, CALIFORNIA 91016 USA
PHONE +1 626.256.6662 / USA TOLL FREE 800.477.7411
FAX +1 626.256.6263 WWW.DELTAENV.COM
1
City of Bakersfield Fire Department
Response To Agency and Workplan for Vapor Well Abandonment
July 1, 2010
Page 2
BACKGROUND
SITE DESCRIPTION
The subject site is currently an active Shell branded service station located on the northeast corner of the
intersection of Gosford Road and White Lane in Bakersfield, California (Figure 1). The site is located in a
commercial area of Bakersfield. The service station consists of three 10,000 - gallon and one 12,000 - gallon
gasoline underground storage tanks (USTs), two dispenser islands each equipped with two multi- product dispenser
pumps, a carwash, and a station building (Figure 2).
PREVIOUS SITE INVESTIGATIONS AND ENVIRONMENTAL ACTIVITIES
Previous soil boring and vapor well construction data is summarized in Table 1. Soil vapor sampling analytical
data is presented in Tables 2 and 3. Previous environmental activities at the site are summarized in the following
table. Boring and vapor well locations are shown on Figure 2.
SUMMARY
Activity / No. of Borings / Report
Date Consultant Comments
Method Samples Date
Phase II
6 Soil Borings Pacific Petroleum hydrocarbons
Environmental
1/00 BB -1 through Unknown Environmental detected in soil (BB -1, BB -2
Site
BB -6) Group (PEG) and BB -6)
Assessment
Total Petroleum Hydrocarbons
as gasoline (TPH -g) and Total8SoilSamplesin
Petroleum Hydrocarbons as
the Fortner
Soil Sampling Diesel (TPH -d) detected with
Dispenser Area IT
during SB989 maximum concentrations of 10
7/01 and 12 Soil Unknown Corporation
Upgrade milligrams per kilogram
Samples in the IT)
Activities mg/kg) and 210 mg/kg, Former Piping respectively. Maximum methylArea
tert-butyl ether (MTBE)
detected at 13 rng/kg.
TPH -g detected at a maximum
Over- 8 Soil Samples in concentration of 7.9 mg/kg.
7/01 Excavation Over - Excavation Unknown IT Maximum MTBE detected at
Activities Area 16 mg/kg. Fifty cubic yards of
soil removed.
Continued)
1
I
City of Bakersfield Fire Department
Response To Agency and Workplan for Vapor Well Abandonment
July 1, 2010
Page 3
SUMMARY (continued)
Activity / No. of Borings / Report
Date Consultant Comments
Method Samples Date
6 soil borings to Maximum TPH -g detected at
Site maximum 65 feet WGR 15 tng/kg, maximum TPN -d
6/03 Assessment below ground
surface (bgs) 7/21/02 Southwest, detected at 4.6 mg/kg, and
Activities 1313-7 through Inc. (WGR) maximum MTBE detected at
1313-12] 16 mg/kg
Maximum MTBE and tert-
8 soil borings to
Site butyl alcohol (TBA)
maximum 85 feet
5/03 Assessment 6/16/03 WGR concentrations in soil were 47
bgs (1313-13
Activities mg/kg and 16 mg/kg, through 1313-20)
respectively
All wells constructed with
2 -inch Schedule 40 PVC withSoilVapor5dual - nested
0.020 -inch slotted screen. Extraction SVE wells9/03 10/27/03 WGR Maximum MTBE and TBA
SVE) Well VEW -1 through
concentrations in soil were 85
Installation VEW -5)
mg/kg and 29 mg/kg,
respectively
Site tested to obtain data on
vapor extraction parameters
for use to design an SVE
remediation system. Radius of
influence (ROI) up to 25 feet
for wells screened in the
SVE Pilot
12/03 2/9/04 DELTA shallow zone and 33 feet for
Test
wells screened in the deeper
zone. TPH -g mass removal
rates estimated at 53.9 pounds
per day (lbs /day) and MTBE
mass removal rates estimated
at 37.5 lbs /day
Update to Submitted revised SVE test
Results of calculations, which resulted in
4/04 4/15/04 DELTA
SVE Pilot increased values for flow and
Tests mass removal rate
Continued)
1
1
1L
City of Bakersfield Fire Department
Response To Agency and Workplan for Vapor Well Abandonment
July I, 2010
Page 4
SUMMARY (continued)
Date Activity / No. of Borings / Report
Consultant Comments
MMethod Samples Date
Proposed natural attenuation
with long term monitoringCorrective
MNA) as the remedial
11/04 Action Plan 11/11/04 DELTA
approach to address residual
RAP)
hydrocarbons in vadose zone
soils
Confirmation Documented verbal approval
of Verbal
of RAP by City of1 /05 Approval: 1/24/05 DELTA
Bakersfield Fire Department
Remedial
CBFD)
Action Plan
Described proposed scope of
Permission to
work for vapor monitoring, Discharge Soil
which includes the release of
Vapor from
4/05 4/4/05 DELTA soil vapors into the
Onsite Wells
atmosphere. Requested
into the
pennission to discharge soil
Atmosphere
vapors into the atmosphere
Submitted quarterly updates
1/04— Quarterly including soil vaporVariousDELTA
04/08 Updates monitoring data to monitor
natural attenuation parameters
Low Risk Site
Requested Low Risk Closure
5/08 Closure 5/12/08 DELTA
of the Site
Request
Agency Letter Low Risk Closure Denied;
10/08 10/29/08 DELTA
CBFD) Active Remediation Required
Response to Agency LetterResponseto
providing additional3/09 Agency Letter 3/6/09 DELTA
infonnation in support of case
of 10/29/08
closure
Continued)
n
I
F
City of Bakersfield Fire Department
Response To Agency and Workplan for Vapor Well Abandonment
July 1, 2010
Page 5
SUMMARY (continued)
Activity / No. of Borings / Report
Date Consultant Comments
Method Samples Date
Meeting with SBCFD,
SHELL, and DELTA
Meeting with regarding challenges to case5/09 5/08/09 DELTA
SBCFD closure. SBCFD request a
work plan for soil
confirmation borings
Work plan for
Proposed three Work plan proposed soil
Soil
6/09 soil confirmation 6/19/09 DELTA borings as locations discussedConfirmation
borings with SBCFD on 5/8/09
Borings
Requested four Requested two proposed soil
Agency Letter8/09 soil confirmation 8/03/09 DELTA boring relocated and adding aSBCFD)
borings fourth soil boring
Addendum to Per telephone conversations
Work plan for Proposed three between DELTA and SBCFD
9/09 Soil soil confirmation 9/10/09 DELTA addendum addressed
Confirmation borings relocation of two soil borings,
Borings and no requirement for a
fourth boring
Requested Revised Work plan
9/09 Agency e-mail 9/14/09 DELTA to incorporate Addendum in
one document
Confirmation
3 soil borings to TPH -g detected at 0.59 mg/kg, Soil Boring 100 feet bgs maximum MTBE detected at2/10 Report and 2/25/10 DELTA
CB -1 through 0.73 mg/kg, and TBA detectedCaseClosure
CB -3) at 0.14 mg/kgRequest
Agency Letter Requested final sampling of
5110
CBFD) 5/11/10 DELTA vapor wells and work plan for
vapor well abandonment
REGIONAL GEOLOGY AND HYDROGEOLOGY
The geologic conditions in the site vicinity are characterized from alluvial deposits, underlain by marine and non-
marine sedimentary units, metamorphic rocks and crystalline basement material. Surface and near - surface
conditions as designated by the U.S. Geological Survey are older alluviurn, deposited in northwest- dipping alluvial
I
F,
City of Bakersfield Fire Department
Response To Agency and Workplan for Vapor Well Abandonment
July 1, 2010
Page 6
fans resulting from outwash from the Sierra Nevada mountain range to the east. This alluvium is composed
primarily of poorly graded and unconsolidated sands, sandy gravels and occasional discontinuous lenticular bodies
of sandy clay and silt. Regionally, the surface of these old alluvial fans is undulatory, with a distinct dip toward
the Kern River to the northwest of the site. The site itself is located along one of the crests of the alluvial fan
surface "ripples" at an elevation of approximately 363 feet above mean sea level (msl). The total thickness of the
alluvial fan deposits is estimated to range from approximately 600 feet west of the site to over 4,000 feet near the
Sierra Nevada Mountains.
The site lies within the Edison hydrogeologic sub -area of the Edison Maricopa area. Uppermost groundwater
within this area occurs within the old alluvial fan deposits. In the site vicinity, deeper aquifers of limited areal
extent are present in the consolidated non - marine sedimentary units and within fracture zones of the crystalline
basement rock. The most prominent subsurface features controlling the groundwater flow direction are the
groundwater barriers formed by the northwest to southwest trending Edison Fault and subparallel splays of this
fault, located south and north of the site, respectively (WGR, 2003b). Depth to water in the vicinity of the subject
site was approximately 140 feet below ground surface (bgs) in February 2009, according to California Water
Service records.
SITE SPECIFIC GEOLOGY AND HYDROGEOLOGY
The soils encountered at the site during vapor extraction well installation activities conducted in September 2003
consisted primarily of fine- grained sand to the total depth explored of approximately 85 feet below ground surface
bgs). A sandy to silty clay layer was encountered above approximately 12 feet bgs.
RESPONSE TO AGENCY
VAPOR WELL SAMPLING
On May 25, 2010 a DELTA field technician mobilized to the site to collect discreet vapor samples from dual
nested wells VEW -1 through VEW -5. Each dual nested well location consists of two vapor wells screened at
different intervals (Table 1). A total of ten vapor samples were collected from the onsite dual nested vapor wells.
Each vapor well was purged for approximately ten minutes using an extraction blower. A vapor sample was
subsequently collected from each well in Tedlarrm bags. The samples were submitted under chain -of- custody
protocols to Cal Science in Garden Grove, California for analysis. Cal Science is a California- certified analytical
laboratory.
Vapor samples were analyzed for the following compounds:
Benzene, toluene, ethylbenzene, and total xylenes (BTEX), fuel- oxygenates including MTBE, TBA, tert-
amyl methyl ether (TAME), di- isopropyl ether (DUPE), and ethyl tert-butyl ether (ETBE) using
Environmental Protection Agency (EPA) Method TO -15;
TPH -g using EPA Method TO -3 Modified; and
t
1
1
City of Bakersfield Fire Department
Response To Agency and Work-plan for Vapor Well Abandonment
July 1, 2010
Page 7
Methane, carbon dioxide, carbon monoxide, oxygen, and nitrogen (Fixed Gases) using American Society
for Testing and Materials (ASTM) D -1946.
Field data sheets are included as Appendix B.
VAPOR SAMPLE ANALYTICAL RESULTS AND DATA EVALUATION
Analytical Results
A summary of soil analytical results follows, and the results are presented on Tables 2 and 3 and Figure 3
Certified analytical reports are included in Appendix C.
Benzene was detected at a concentration of 0.00053 parts per million (ppm) in well VEW -3A and
0.00056 ppm in well VEW -4B.
Ethylbenzene was detected at a concentration of 0.0013 ppm in well VEW -3A and 0.00069 ppm in well
VEW -4B.
Total xylenes were detected at a concentration of 0.0055 ppm in well VEW -3A.
MTBE was detected in seven of the 10 vapor wells at concetrations ranging from 0.0024 (VEW -5A) to
0.92 ppm (VEW -3B).
TPH -g, toluene, total xylenes, TBA, DFPE, TAME, and ETBE were not detected above laboratory reporting limits.
Data Evaluation
TPH -g, BTEX, and fuel oxygenates concentrations were generally consistant with or lower than the conctrations
detected during the previous sampling event conducted in March 2008 (First Quarter 2008). However,
concentrations of benzene and ethylebenzene increased in wells VEW -3A and VEW -4B, total xylenes increased in
well VEW -3A, and MTBE increased in wells VEW -3A, VEW -3B and VEW -4B, as summarized in the following
table:
Vapor Well Concentration Increase from March 2008 to May 2010 (ppm)
Benzene Ethylbenzene Total Xylenes MTBE
VEW -3A 0.00003 0.0008 0.0040 0.00030
VEW -3B None None None 0.66
VEW -4A None None None 0.00030
VEW -413 0.00006 0.00019 None None
Petroleum hydrocarbon and fuel oxygenate concentrations in soil vapor at the site are either stable or decreasing in
all wells with the exception of minor increases in several analytes in wells VEW -3A, VEW -3B, VEW -4A, and
VEW -4B.
r-,
LJI
City of Bakersfield Fire Department
Response To Agency and Workplan for Vapor Well Abandonment
July I, 2010
Page 8
WORK PLAN FOR VAPOR WELL ABANDONMENT
SCOPE OF WORK
DELTA proposes to abandon five dual nested vapor monitoring well locations (VEW -1 through VEW -5) by over -
drilling each nested well. Boring logs and well construction diagrams are included as Appendix D.
Pre -field Activities
Upon approval of the work plan, DELTA will visit the site to mark the well locations, contact Underground
Services Alert at least 48 hours prior to drilling, arrange the drilling schedule, and supervise a drilling contractor.
Prior to boring advancement, a utility locator contractor will perform a geophysical survey of the proposed well
locations to check for below grade obstructions or utilities. DELTA will obtain the required permits from the
CBFD. Notifications regarding field activities will be made in advance to the appropriate agencies and the
property owner.
Monitoring Well Destruction Activities
Prior to drilling, the well locations will be cleared using air -knife equipment to a depth of approximately eight
feet bgs. A hollow stem auger drill rig will be used to over -drill each well location and remove all well materials.
The resulting borelloles will be backfilled with a 5% bentonite / 95% cement mixture using the augers as a tretnie
pipe to approximately 3 feet bgs. The fonner vapor well locations will be capped with concrete to the surface and
finished to match the existing surface.
Waste Disposal
Soil, rinseate water and other materials generated during abandonment activities will be placed in Department of
Transportation (DOT)- approved 55- gallon drums. The drums will be sealed and labeled in accordance with the
appropriate protocols and each drum will be identified on a waste inventory form. The drums will be temporarily
stored on -site, pending transport and disposal by SHELL'S waste management contractor. Disposal of drill
cuttings and rinseate at appropriate disposal or recycling facility will be coordinated by DELTA.
Report Preparation
Upon completion of the well abandonment activities, a report will be prepared detailing the complete results of the
activities. A final copy will be submitted to the CBFD approximately 90 days after completion ofthe field work.
n
II
i
l
1
r
J
City of Bakersfield Fire Department
Response To Agency and Workplan for Vapor Well Abandonment
July 1, 2010
Page 9
LIMITATIONS
The recommendations and conclusions contained in this work plan represent DELTA's professional opinions based
upon the currently available information and are arrived at in accordance with currently acceptable professional
standards. This work plan is based upon a specific scope of work negotiated with the City of Bakersfield Fire
Department. The Contract between DELTA and its client outlines the scope of work, and only those tasks
specifically authorized by that contract or outlined in this work plan will be performed. This document is intended
only for the use of DELTA's Client and anyone else specifically listed on this report. DELTA will not and cannot
be liable for unauthorized reliance by any other third party. Other than as contained in this paragraph, DELTA
makes no express or implied warranty as to the contents of this work plan.
If you have any questions regarding this site, please contact Mr. Philip L. Gilchrist (DELTA) at (626) 873 -2730 or
Ms. Monica Ortega (DELTA) at (626) 873 -2728, or the SHELL Project Manager is Ms. Andrea Wing, who can be
reached at (714) 731 -1050.
Sincerely, pNA! GFODeltaConsultants eto Envl-o
4 O
Q 4 1k SCOTT N. PEARSON yNo. 6931 —
f ~ rq
J, Exp. 5/31012
I /FORwN CFCAoI
Philip L. Gilchrist, R.E.A. 3004 Scott Pearson, P.G. 6931
Project Manager Consultant
Registered Environmental Assessor
cc: Ms. Andrea Wing, Shell Oil Products US
Heng and Sing Chao, Property Owners
1 y:K _.
r .
ql`t
ii !.
ff /
4
y .
tivn b
ati "
v
8 . Q `vim :
t cpc+ 1
fi %
C',
Cf
1 A.
ni :1J`1 -
ATTACHMENTS:
TABLES
Table 1 — Well and Boring Data
Table 2 — Soil Vapor Sampling Analytical Data (Hydrocarbons and Fuel Oxygenates)
Table 3 — Soil Vapor Sampling Analytical Data (Fixed Gases)
FIGURES
Figure 1 — Site Location Map
Figure 2 — Site Map
Figure 3 — Soil Vapor Analytical Results 5/25/2010
APPENDICES
Appendix A — City of Bakersfield Fire Department Letter dated May 11, 2010
Appendix B — Field Data Sheets
Appendix C — Laboratory Reports and Chain -of- Custody Documentation
Appendix D — Vapor Well Boring logs and Well Construction Diagrams
I
L
i
J
l_ J
r,
I
rte,
J
Gd
r
M
J
7
Tables
t
1
n
n
11
TABLE I
WELL AND BORING DATA
4050 Gosford Road, Bakersfield, California
Y0.e::: 0 ........
pr xQ. ...............
Tte .......
ft'
p .... .....
A ........
I ............
BB -1 Boring 1/19/00 40 5 5-40
1313-2 Boring 1/19/00 40 5 5-40
1313-3 Boring 1/19/00 20 5 5-20
1313-4 Boring 1/19/00 20 5 5-20
BB-5 Boring 1/19/00 20 5 5-20
BB-6 Boring 1/19/00 20 5 5-20
1313-7 Boring 6/21/02 60 5 5-60 Hollow Stem Auger
1313-8 Boring 6/20/02 60 5 5-60 Hollow Stem Auger
1313-9 Boring 6/20/02 65 5 5-65 Hollow Stem Auger
B13-10 Boring 6/20/02 65 5 5-65 Hollow Stem Auger
1313-11 Boring 6/20/02 60 5 5-60 Hollow Stem Auger
1313-12 Boring 6/20/02 60 5 5-60 Hollow Stem Auger
1313-13 Boring 5/6/03 85 5 5-85 Hollow Stem Auger
BB-14 Boring 5/7/03 85 5 5-85 Hollow Stem Auger
1313-15 Boring 5/7/03 85 5 5-85 Hollow Stem Auger
1313-16 Boring 5/7/03 85 5 5-85 Hollow Stem Auger
1313-17 Boring 5/8/03 85 5 5-85 Hollow Stem Auger
1313-18 Boring 5/8/03 85 5 5-85 Hollow Stem Auger
BB-19 Boring 5/6/03 85 5 5-85 Hollow Stem Auger
B13-20 Boring 5/6/03 85 5 5-85 Hollow Stem Auger
VEW-IA Vapor Extraction Well 9/25/03 55 5 5-55 2 10 30 Hollow Stem Auger
VEW-113 Vapor Extraction Well 9/25/03 55 5 5-55 2 40 55 Hollow Stem Auger
VEW-2A Vapor Extraction Well 9/24/03 60 5 5-60 2 5 30 Hollow Stem Auger
VEW-213 Vapor Extraction Well 9/24/03 60 5 5-60 2 40 60 Hollow Stem Auger
VEW-3A Vapor Extraction Well 9/24/03 50 5 5-50 2 5 25 Hollow Stem Auger
VEW-313 Vapor Extraction Well 9/24/03 50 5 5-50 2 35 50 Hollow Stem Auger
VEW-4A Vapor Extraction Well 9/23/03 65 5 5-65 2 10 30 Hollow Stem Auger
VEW-413 Vapor Extraction Well 9/23/03 65 5 5-65 2 40 65 Hollow Stem Auger
VEW-5A Vapor Extraction Well 9/23/03 65 5 5-65 2 5 30 Hollow Stem Auger
VEW-513 Vapor Extraction Well 9/23/03 65 5 5-65 2 40 65 Hollow Stem Auger
CB -1 Boring 10/15/09 100 5 10-100 Air Knifed to —10' b
C13-2 Boring 10/14/09 100 5 10-100 Air Knifed to —10' bgs
C13-3 Boring 10/15/09 too 5 10-100 Air Knifed to —10' b
Notes:
AMSL = Above mean sea level
Not applicable
Data prior to September 2003 supplied by WGR Southwest, Inc.
Page 1 of 1
m m m m m = = m m = = m m = = = = =
TABLE 2
SOIL VAPOR SAMPLING ANALYTICAL DATA (HYDROCARBONS AND FUEL OXYGENATES)
4050 Gosford Road, Bakersfield, California
TPH >Gi >: -
m..
BEJYZENE::.::TOLUEN EFHKL -: >:::::TOTA&
BENZEiVE :::::XYLENES:::::::::::::
i:::::
m
N}TBE:::
m :
AiFBE DIP.Ei:: i::: ETBE ::: TAME ?: .
VEW -1A jNjD<0.002
4/14/2005 ND<3.0 ND ND<0.0005 0.0022 0.002 0.0146 1.1 4.0 02 ND<0.002 ND<0.002 ND<0.002
5/18/2005 ND<3.0 ND 0.00071 0.0017 0.00094 0.0038 2.0 7.1 ND<0.002 ND<0.002 NIX0.002
6/20/2005 ND<3.0 ND 0.00054 0.0011 ND<0.0005 0.00292 1.2 4.5 02 ND<0.002 ND<0.002 ND<0.002
7/14/2005 ND<10 NO 0.00074 0.0018 ND<0.0005 0.00186 1.2 4.4 ND<0.002 ND<0.002 ND<0.002 ND<0.002
8/9/2005 ND<3.0 NO ND<0.002 0.0054 NO<0.002 ND<0.004 0.7 2.5 ND<0.008 ND<0.008 ND<0.008 ND<0.008
9/28/2005 3.2 13 0.0040 0.026 0.015 0.129 0.93 33 ND<0.004 ND<0.004 ND<0.004 ND<0.004
10/13/2005 ND<3.0 NO ND<0.0005 0.0021 ND<0.0005 ND<0.0005 0.51 1.5 ND<0.002 ND<0.002 ND<0.002 ND<0.002
2/1/2006 ND<3.0 NO ND<000050 0.00084 ND<0.00050 ND<0.0010 0.100 037 ND<0.002 ND<0.002 ND<0.002 ND <0.002
5/16/2006 ND<3.0 NO ND<0.00050 0.00230 0.00068 0.00120 0.013 0.05 NIX0.002 ND<0.002 ND<0.002 ND <0.002
8/16/2006 ND<3.0 NO ND<0.00050 0.0017 0.00088 0.0028 0.007 0.026 ND<0.002 ND<0.002 ND<0.002 ND<0.002
12/27/2006 ND<3.0 NO ND<0.00050 0.0079 0.00160 0.0052 0.0037 0.013 ND<0.002 ND<0.002 ND<0.002 ND<0.002
3/10/2007 5.2 21 0.0023 0.0049 0.0009 0.006 04034 0.012 ND<0.002 ND<0.002 ND<0.002 ND<0.002
6/19/2007 ND<3.0 NO ND <0.00050 0.0019 0.00087 0.0073 0.0025 0.0090 ND<0.002 ND<0.002 ND <0.002 ND<0.002
9/21/2007 ND<3.0 NO 0.011 0.086 0.02 0.121 0.0062 0.022 ND<0.002 ND<0.002 ND<0.002 ND<0.002
12/3/2007 ND<3.0 NO ND<0.00050 0.003 0.00072 0.00316 0.0024 0.0087 ND<0.002 ND<0.002 ND<0.002 ND<0.002
3/5/2008 ND<3.0 NO ND <0.00050 0.0020 ND <0.00050 0.0010 0.0039 0.014 ND<0.0020 ND<0.0020 ND<0.0020 ND<0.0020
5/25/2010 ND<1.5 NO ND<0.0005 ND<0.005 ND<0.00051 ND<0.002 0.0028 0.010 ND<0.005 ND<0.002 ND<0.002 ND<0.002
VEW -18
4/14/2005 ND<3.0 NO ND<0.0005 0.0035 0.0028 1 1.2 4.2 ND<0.002 ND<0.002 ND<0.002 ND<0.002
5/18/2005 ND<3.0 NO ND <0.0005 0.0019 0.00089 29 0.0023 0.0083 ND<0.002 ND<0.002 ND <0.002 ND<0.002
6/20/2005 ND<3.0 NO ND <0.0005 0.001 ND<0.0005 75 0.14 0.52 ND<0.002 ND<0.002 ND<0.002 ND<0.002
7/14/2005 ND<3.0 NO 0.00058 0.0011 ND<0.0005 001 0.0053 0.019 ND<0.002 ND<0.002 ND<0.002 ND<0.002
8/9/2005 ND<3.0 NO ND<0.002 0.0034 NO<0.002 004 0.17 0.60 ND<0.008 ND<0.008 ND<0.008 ND<0.008
9/28/2005 ND<3.0 NO 0.0019 0.011 0.0049 2MND<O,001
0.160 0.59 ND <0.004 ND<0.004 ND<0.004 ND<0.004
10/1312005 ND<3.0 NO ND<0.0005 0.0024 ND<0.0005 001 0.008 0.027 ND<0002 ND<0.002 ND<0.002 ND<0.002
2/1/2006 ND<3.0 NO 0.00067 0.0024 ND<0.0005 001 ND<0.002 ND<0.0072 ND<0.002 ND <0.002 ND <0.002 ND<0.002
5/16/2006 ND<3.0 ND 0.00084 0.0025 0.00056 5 0.0063 0.023 ND<0.002 ND<0.002 ND<0.002 NIX0.002
8/16/2006 ND<3.0 ND ND<0.0005 0.0024 0.0021 8 0.0066 0.024 ND<0.002 ND<0.002 ND<0.002 ND<0.002
12/27/2006 ND<3.0 ND ND <0.00050 0.0071 0.0014 7 0.0043 0.015 ND<0.002 ND<0.002 ND<0.002 ND<0.002
3/10/2007 9.1 37 0.0025 0.0063 0.0022 0.0073 0.0023 0.0083 ND<0.002 ND<0.002 ND<0.002 ND<0.002
6/19/2007 ND<3.0 NO ND<0.00050 0.0031 0.0016 0.0127 0.0036 0.013 ND<0.002 ND<0.002 ND<0.002 ND<0.002
9/21/2007 ND<3.0 NO 0.019 0.091 0.028 0.12 0.0061 0.022 ND<0.002 ND<0.002 ND<0.002 ND<0.002
12/3/2007 ND<3.0 NO 0.00067 0.0045 0.0015 0.0067 0.003 0.011 ND<0.002 ND<0.002 ND<0.002 ND<0.002
3/5/2008 ND<3.0 NO ND<0.00050 0.0025 ND<0.00050 ND<0.0015 0.0031 0.011 ND<0.0020 ND<0.0020 ND<0.0020 ND<0.0020
5/25/2010 ND<1.5 NO ND<0.0005 ND<0.005 ND<0.00051 ND<0.002 0.0025 0.0091 ND<0.005 ND<0.002 ND <0.002 ND<0.002
VEW -2A
4/14/2005 18 74 ND<0.002 0.0028 0.0029 0.0197 9.7 35 ND<0.008 ND<0.008 ND<0.008 ND<0.008
5/18/2005 20 82 1 0.0036 0.002 0.0011 0.00309 20 73 ND<0.002 ND<0.002 0.002 0.0022
6/20/2005 150 615 ND<0.005 ND<0.005 ND<0.005 ND<0.005 8.8 32 ND<0.02 ND<0.02 ND<0.02 ND<0.02
7/14/2005 25 102 0.00078 0.0023 ND<0.0005 0.0027 16.0 57 0.012 ND<0.002 0.0065 ND<0.002
8/9/2005 240 984 ND<0.033 ND<0.033 ND<0.033 ND<0.065 4.0 15 ND<0.13 ND<0.13 ND<0.13 ND<0.13
9/28/2005 33 14 0.0017 0.010 0.0048 0.040 0.830 3 ND<0.004 ND <0.004 ND<0.004 ND<0.004
10/13/2005 53 22 ND<0.001 ND<0.001 ND<0.001 ND<0.002 2.400 8.6 ND<0.04 ND<0.04 ND<0.04 ND<0.04
2/1/2006 ND<3.0 NO ND<0.00050 0.0011 ND<0.00050 ND<0.0010 0.820 3.0 ND <0.002 ND<0.002 ND<0.002 ND <0.002
5/16/2006 ND<3.0 NO ND<0.00050 0.0018 0.00056 0.0025 0.720 2.6 ND<0.002 ND<0.002 ND<0.002 ND<0.002
8/16/2006 ND<3.0 NO ND<0.00050 0.0015 0.00089 0.0029 0.180 0.65 ND<0.002 ND<0.002 ND<0.002 ND <0.002
12/27/2006 ND<3.0 NO ND<0.00050 0.0087 0.0014 0.0047 0.0031 0.11 ND<0.002 ND<0.002 ND<0.002 ND <0.002
3/10/2007 ND<3.0 NO 0.0015 0.0033 0.00098 0.0028 0.031 0.11 ND<0.002 ND<0.002 ND<0.002 ND<0.002
6/19/2007 ND<30 NO ND<0.00050 0.0014 0.0005 0.0073 0.0059 0.021 ND<0.002 ND<0.002 ND<0.002 ND<0.002
9/21/2007 ND<3.0 NO 0.0076 0.054 0.014 0.12 0.028 0.10 ND<0.002 ND<0.002 ND<0.002 ND<0.002
126/2007 ND<3.0 NO 0.0011 0.0064 0.0012 0.0043 0.0084 0.03 ND<0.002 ND<0.002 ND<0.002 ND<0.002
3/5/2008 ND<3.0 NO ND<0.00050 0.0025 ND<0.00050 ND<0.0015 0.0075 0.027 ND<0.0020 ND<0.0020 ND<0.0220 ND<00020
5/25/2010 ND<I.5 NO ND<0.0005 ND <0.005 ND<0.00051 ND<0.002 0.0033 0.012 ND<0.005 ND<0.002 ND<0.002 ND<0.002
Page 1 of4
m m = m m m = = m m = = m m m = m m m
TABLE 2
SOIL VAPOR SAMPLING ANALYTICAL DATA (HYDROCARBONS AND FUEL OXYGENATES)
4050 Gosford Road, Bakersfield, California
DATEi:: i:: TfH =G::: T fliGii:
1':
is BENZENE::::
m`
TOLUENE :
m
is ETHYL -' ::: TOTA1: ii:
m
iiiA1TBE::: MTBE :::::::T$A::::
ti m
DIP.Eis i
u.
i: ETBE ::: i:TAME ii:
VEW -2B
4/14/2005 4.9 20 ND <0.0005 0.0011 0.00074 0.0052 3.5 13 ND<0.002 ND<0.002 0.0028 ND<0.002
5/18/2005 ND<3.0 ND ND<0.0005 0.0011 0.00075 0.00259 0.011 0.041 ND<0.002 ND<0.002 ND <0.002 ND<0.002
6/20/2005 5.7 23 0.00057 0.0011 ND<0.0005 0.0032 7.9 29 0.0067 ND<0.002 0.003 ND<0.002
7/14/2005 ND<3.0 ND 0.00098 0.0017 ND<0.0005 0.0024 0.0085 0.031 ND<0.002 ND<0.002 ND<0.002 ND<0.002
8/9/2005 5.5 23 ND<0.002 0.0028 ND<0.002 ND<0.004 4.6 17 0.023 ND<0.008 ND<0.008 ND<0.008
9/28/2005 7.3 30 ND<0.2 ND<0.4 ND<0.2 ND<0.2 11 39 ND<0.8 ND<0.8 ND<0.8 ND<0.8
10/13/2005 ND<3.0 ND ND<0.005 0.0016 ND<0.005 ND<0.001 5.2 19 ND<0.002 ND<0.002 ND<0.002 ND<0002
2/1/2006 ND<3.0 ND ND<0.00050 0.00093 ND<0.00050 NIX0.001 ND<0.002 ND<0.0072 ND<0.002 ND<0.002 ND<0.002 ND<0.002
5/16/2006 ND<10 ND ND <0.00050 0.00015 ND<0.00050 0.00014 0.100 0.38 ND<0.002 ND<0.002 ND <0.002 ND<0.002
8/16/2006 ND<10 ND ND<0.00050 0.0013 0.00055 0.0018 0.089 032 ND<0.002 ND<0.002 ND<0.002 ND<0.002
12/27/2006 ND<10 ND ND<0.00050 0.0079 0.0014 1 0.0047 0.0032 1 0.012 ND<0.002 ND<0.002 ND<0.002 ND<0.002
3/10/2007 3.4 14 0.0036 0.0059 0.0022 0.0068 ND <0.002 ND<0.0072 ND <0.002 ND<0.002 ND<0.002 ND<0.002
6/19/2007 ND<3.0 ND ND<0.00050 0.0012 MX0.00050 0.0021 0.0023 0.0083 ND<0.002 ND<0.002 ND<0.002 ND<0.002
9/21/2007 ND<3.0 ND 0.00077 0.0069 0.0012 0.0081 ND<0.002 ND<0.0072 NIX0.002 ND<0.002 ND<0.002 ND<0.002
12/3/2007 ND<3.0 ND 0.0022 0.0110 0.0019 0.0070 0.041 0.15 ND<0.002 ND<0.002 ND<0.002 ND<0.002
3/5/2008 ND<3.0 ND ND<0.00050 0.0024 ND<0.00050 0.0010 ND<0.002 ND<0.0072 ND<0.0020 ND<0.0020 ND<0.0020 ND<0.0020
5/25/2010 ND<1.5 ND ND<0.0005 ND<0.005 ND<0.00051 N1.<0.002 NIX0.002 ND<0.0072 ND<0.005 ND<0.002 ND<0.002 ND<0.002
VEW -3A
4/14/2005 150 615 ND<0.02 ND<0.02 ND<0.02 ND<0.02 99 360 0.59 ND <0.08 ND<0.08 ND<0.08
5/18/2005 75 307 1 0.00082 0.0027 0.0017 0.0058 76 280 ND<0.002 ND<0.002 0.012 0.011
6/20/2005 1,600 6,557 0.059 ND<0.01 ND<0.01 ND<0.01 53 190 0.23 ND<0.04 ND<0.04 ND<0.04
7/14/2005 570 2,336 ND<0.005 ND<0.005 ND<0.005 ND<0.01 31 110 ND<0.02 ND<0.02 ND<0.02 ND<0.02
8/9/2005 2,200 9,016 ND<0.31 ND<0.31 ND<0.31 ND <0.63 52 190 ND<1.3 ND<1.3 ND<1.3 ND<1.3
9/28/2005 100 410 ND<0.005 0.0062 ND<0.005 0.0285 32.0 110 0.087 ND<0.02 ND<0.02 ND<0.02
10/13/2005 55 225 ND<0.0075 0.019 NEX0.0075 ND<0.015 34.0 120 0.054 ND<0.015 ND<0.015 ND<0.015
2/1/2006 8.4 34 ND<0.0010 0.0013 ND <0.0010 ND<0.0020 7.7 28 ND<0.004 ND<0.004 ND<0.004 ND<0.004
5/16/2006 73 30 ND<0.0010 0.0013 ND<0.0010 NIX0.0020 7.7 28 ND<0.004 ND<0.004 ND<0.004 ND<0.004
8/16/2006 3.8 16 ND<0.0010 0.0022 0.0013 0.0045 1.5 5.6 ND<0.004 ND<0.004 ND<0.004 ND<0.004
12/27/2006 ND<3.0 ND ND<0.00050 0.0074 0.0032 0.011 1.2 43 NIX0.002 ND<0.002 ND<0.002 ND<0.002
3/10/2007 ND<3.0 ND 0.002 0.0024 ND<0.0020 ND<0.0020 0.29 1.0 ND<0.008 ND<0.008 ND<0.008 ND<0.008
6/19/2007 ND<3.0 ND 0.002 0.0023 0.0016 0.0058 0.042 0.15 ND<0.002 ND<0.002 ND<0.002 ND<0.002
9/21/2007 ND<3.0 ND 0.01 0.056 0.016 0.132 ND<0.002 ND<0.0072 ND<0.002 ND<0.002 ND<0.002 ND<0.002
12/3/2007 ND<3.0 ND 0.00056 0.004 0.0011 0.0054 0.0053 0.019 ND<0.002 ND<0.002 ND<0.002 ND<0.002
3/5/2008 ND<3.0 ND ND<0.00050 0.0012 ND<0.00050 ND<0.0015 0.0039 0.014 ND<0.0020 ND<0.0020 ND<0.0020 ND<0.0020
5/25/2010 ND<1.5 ND 0.00053 ND<0.005 0.0013 0.0055 0.0036 0.013 ND <0.005 ND<0.002 ND<0.002 ND<0.002
VEW -36
4/14/2005 30 123 ND<0.004 ND<0.004 ND<0.004 0.011 31 110 ND<0.016 ND<0.016 ND<0.016 ND <0.016
5/182005 9.4 39 0.00085 0.0017 0.0015 0.0052 11 38 ND <0.002 ND<0.002 ND<0.002 ND<0.002
6/20/2005 18 74 0.001 0.0021 0.0014 0.011 12 44 ND<0.002 ND<0.002 0.003 ND<0.002
7/142005 17 70 0.001 0.0013 ND<0.0005 0.0016 19 68 ND<0.002 ND<0.002 ND<0.002 ND<0.002
8/9/2005 10 41 ND<0.002 0.003 ND<0.002 ND<0.004 8.6 31 ND<0.008 ND<0.008 ND<0.008 ND<0.008
9/2812005 73 30 ND<0.02 ND<0.02 ND<0.02 ND<0.04 8.9 32 ND<0.08 ND <0.08 ND<0.08 ND<0.08
10/13/2005 9.2 38 ND<0.001 0.0031 ND<0.001 ND<0.002 10.0 36 NIX0.004 ND<0.004 ND<0.004 ND<0.004
2/1/2006 6.4 26 ND<0.0010 0.0014 ND <0.0010 ND<0.0020 63 23 ND<0.004 ND<0.004 ND<0.004 ND<0.004
5/162006 12 49 ND<0.0010 0.0022 ND<0.0010 0.0022 9.2 33 ND<0.004 ND<0.004 ND <0.004 ND<0.004
8/1612006 83 34 ND <0.0010 0.0019 0.0011 0.0037 8 29 ND<0.004 ND<0.004 ND <0.004 ND<0.004
12/27/2006 9.4 39 ND<0.0010 0.0067 0.0031 0.011 12 42 ND<0.004 ND<0.004 ND <0.004 ND<0.004
3/10/2007 6.5 27 ND<0.002 ND<0.002 ND<0.002 ND<0.002 6.2 23 ND<0.080 ND<0.080 ND<0.080 ND <0.080
6/19/2007 ND<3.0 NA ND<0.00050 0.0011 ND <0.00050 0.0019 0.63 23 ND<0.002 ND<0.002 ND<0.002 ND<0.002
9/21/2007 5.7 23 0.0061 0.057 0.0092 0.088 5.9 21 ND<0.02 ND<0.02 ND <0.02 ND<0.02
12/3/2007 33 14 ND<0.020 ND<0.020 ND<0.020 ND<0.040 3.7 13 ND<0.080 ND<0.080 ND<0.080 ND<0.080
3/5/2008 4.8 20 ND<000050 0.0019 ND<0.00050 ND<0.0015 0.26 0.94 ND<0.0020 ND<0.0020 ND<0.0010 ND<0.0020
5/25/2010 ND<1.5 ND ND<0.0005 ND<0.005 ND<0.00051 ND<0.002 0.92 33 ND<0.005 ND<0.002 ND<0.002 ND<0.G02
Page 2 of 4
m m m m m m = m m m m m m m m m m m m
TABLE2
SOIL VAPOR SAMPLING ANALYTICAL DATA (HYDROCARBONS AND FUEL OXYGENATES)
4050 Gosford Road, Bakersfield, California
is JM-G:::-
w 1):W:.:-:-
E
E ................ X.Y.L. . NES....
in):-: : W: (ugyq:
TBA: :-:-:
jp)
I ................................
I .............................
jopiny
TAME- :.:.7
66'fif
VEW4A
4/14/2005 (1 MIN) ND<3.0 ND ND<0.004 ND<0.004 ND<0.004 0.0087 039 1.4 ND<0.016 ND<0.016 ND<0.016 ND<0.016
4/14/2005 (2 MYN) ND<3.0 ND ND<0.005 ND<0.005 ND<0.005 ND<0.005 0.57 2.0 ND<0.016 ND<0.016 ND<0.016 ND<0.016
4/14/2005 (5 MIN) 43 18 ND-<0M5 ND<0.005 ND<0.005 ND<0.005 1.50 53 ND<0.02 ND<0.02 ND<0.02 ND<0.02
5/18/2005 ND<3.0 ND 0.00058 0.0016 0.0013 1 0.0059 0.94 3.4 ND<0.002 ND<0.002 ND<0.002 ND<0.002
6/20/2005 85 ND 0.0017 0.0013 0.00068 0*0036 0.15 0.53 ND<0.002 ND<0.002 ND<0.002 ND<U1q102
7/14/2005 3-3 14 0.0012 0,0016 ND<0.0005 0.003 0.17 0.61 ND<0.002 ND<0.002 ND<0.002 ND<0.002
8/9/2005 ND<3.0 ND ND<0.002 0.0027 ND<0.002 ND<0.004 0.041 0.15 ND<0.008 ND<0.008 NDI<0.008 ND<0.008
9/28/2005 ND<3.0 ND ND<0.001 0.0074 0.0025 0.0207 0.052 0.19 ND<0.004 ND<0.004 0.018 ND<0.004
10/13/2005 ND<3.0 ND ND<0.002 0.0025 ND<0.002 ND<0.004 0.058 0.21 ND<0.008 ND<0.008 ND<0.008 ND<0.008
2/1/2006 ND<3.0 ND ND<0.00050 0.00093 ND<0.00050 ND<0.0010 0.090 033 ND<0.002 ND<0.002 NEX0.002 ND<0.002
5/16/2006 ND<3.0 ND ND<0.00050 0.0018 ND<000 10 0.0017 0.055 0.20 ND<0.002 ND<0.002 ND<0.002 ND<0.002
8/16/2006 ND<3.0 ND ND<0.00050 0.0015 0.00099 0.0032 0.022 0.080 ND<0.002 ND<0.002 NDK0.002 ND<0.002
12/27/2006 ND<3.0 ND ND<0.00050 0.011 0.0059 0.019 0.026 0.092 NEX0.002 NIX0D02 ND<0.002 ND<0.002
3/1012007 ND<3.0 ND ND<0.002 04024 ND<0M2 ND<0.002 0.012 0.043 ND<0.008 ND<0.008 ND<0.008 ND<0.008
6/19/2007 ND<3.0 ND ND<0.00050 0.00076 ND<0.00050 0.00100 ND<0.002 ND<0.0072 ND<0.002 ND<0.002 ND<0.002 ND<0.002
9/21/2007 ND<3.0 ND 0.0082 0.077 0.014 0.121 ND<0.008 ND<0.029 ND<0.008 ND<0.008 ND<0.008 NDK0.008
1213/2007 ND-<10 ND ND<0.00050 0.0022 0.00060 0.00275 0.0054 0.019 ND<0.002 ND<0.002 ND<0.002 ND<0.002-
3/5/2008 ND<3.0 ND ND<0.00050 0.0021 ND<0.00050 ND<0.0015 0.0022 0.0081 NDI<0.0020 ND<0.0020 ND<0.0020 NDK0.0020
5125/2010 ND<1.5 ND ND<0.0005 ND<0.005 ND<0.00051 ND<0M2 0.0025 0.0090 ND<0.005 ND<0.002 ND<0.002 ND<0.002
VEW4B
4/14/2005 (1 MM ND<3.0 ND ND<0.002 0.0021 0.0025 0.0156 13 4.5 ND<0.008 ND<0.008 ND<0.008 ND<0.008
4/14/2005 (2 MIN) ND<3.0 ND ND<0.004 ND<0.004 ND<0.004 ND<0.004 13 4.8 ND<0.016 ND<0.016 ND<0.016 ND<0.016
4/14/2005 (5 MIN) ND<3.0 ND ND<0.004 ND<0.004 ND<0.004 0.0081 1.2 4.4 ND<0.016 ND<0.016 ND<0.016 ND<0.016
5/18/2005 ND<3.0 ND 0.00067 0.0012 0.0013 0.0054 0.0054 0.019 ND<0.002 ND<0.002 ND<0.002 ND<0.002
6/20/2005 ND<3.0 ND 0.00067 0.0016 0.00074 0.005 0.13 0.47 ND<0.002 ND<0.002 ND<0.002 ND<0.002
7/14/2005 ND<3.0 ND 0.00092 0.0013 ND<0M05 0.0018 ND<0.002 ND<0M72 ND<0.002 ND<0.002 ND<0.002 ND<0.002
819/2005 ND<3.0 ND ND<0.002 0.0039 ND<0.002 ND<0.004 037 1.4 ND<0.008_ ND<0.008 ND<0.008 ND<0.008
9M/2005 ND<10 ND ND<0.002 0.0075 0.0036 0.0295 0.25 0.91 ND<0.008 ND<0w008 ND<0.008 ND<0.008
10/13/2005 ND<3.0 ND ND<0.001 0.0026 ND<0.001 ND<0.002 0.034 0.12 ND<0.008 ND<0.008 ND<0.008 NIX0.008
2/1/2006 ND<3.0 ND ND<0.00050 0.0010 ND<0.00050 ND<0.0010 0.012 0.044 ND<0.002 ND<0.002 ND<0.002 ND<0M2
5/16/2006 ND<3.0 ND ND<0M050 0.0022 0.00084 0.0027 0.130 0.49 ND<0.0032 ND<00032 ND<0.0032 ND<0.0032
8/16/2006 ND<3.0 ND ND<0.00050 0.0013 0.00086 0.0027 0.029 0.10 ND<0M32 ND<0M32 ND<0.0032 ND<0.0032
12/27/2006 ND<3.0 ND 0.00074 0.012 0.0068 0.022 0.013 0.048 ND<0M2 ND<0.002 ND<0.002 ND<0.002
3/10/2007 ND<3.0 ND ND<0.002 ND<0.002 ND<0.002 ND<0.002 ND<0.008 ND<0.029 ND<0.008 ND<0.008 ND<0.008 ND<0.008
6/19/2007 ND<3.0 NA ND<0.00050 0.00110 ND<0.00050 0.00216 0.02300 NA ND<0.002- ND<0.002 ND<0.002 ND<0.002
9/21/2007 ND<3.0 NA 0.024 0.094 0.032 0.158 ND<0.002 ND<0.0072 ND<0.002 ND<0.002 ND<0.002 ND<0.002
12/3/2007 4.0 16 ND<0.020 ND<0.020 ND<0.020 NDI<0.040 4.7 17 ND<0.080 ND<0.080 ND<0.080 N5<-0,080
3/5/2008 ND<3.0 ND ND<0.00050 0.0014 ND<0.00050 ND<0.0015 ND<0.002 ND<0.0072 ND<0.0020 NIX0.0020 ND<0.0020 ND<0.0020
5/25/2010 ND<1.5 ND 0.00056 ND<0.005 0.00069 ND<0.002 ND<0.002 ND<0.0072 ND<0.005 ND<0.002 ND<0.002 ND<0.002
VEW-5A
4/14/2005 89 365 ND<0.013 0.022 ND<0.0 13 ND<0.013 46 170 0.062 ND<0.05 ND<0.05 ND<0.05
5/18/2005 40 164 0.0009 0.003 0.0016 0.0056 55 200 0.014 ND<0.002 0.0074 0.0045
6/20/2005 440 1,803 0.013 ND<0.005 ND<0.005 0.0316 430 16 ND<0.02 ND<0.02 ND<0.02 ND<0.02
7/14/2005 92 377 04012 0.0017 ND<0.0005 0.0018 1.2 4.4 0.0095 ND<0.002 0.0038 ND<0.002
8/9/2005 480 1,967 ND<0.063 ND<0.063 ND<0.063 ND<0.13 3.0 11 ND<0.25 ND<0.25 ND<025 ND<0.25
9/28/2005 62 254 ND<0.002 0.0072 0.0047 0.036 1.7 6.1 ND<0.008 ND<0.008 ND<0.008 ND<0.008
10/13/2005 20 82 ND<0.002 0.0022 ND<0.002 ND<0.004 2.2 7.8 ND<0.008 ND<0.008 ND<0.008 ND<0.008
2/1/2006 ND<3.0 ND ND<0.00050 0.0011 ND<0.00050 ND<0.0010 13 4.8 ND<0.002 ND<0.002 ND<0.002 ND<0.002
5/16/2006 ND<3.0 ND ND<0.0010 0.0026 ND<0.0010 0.0028 0320 1.2 ND<0.004 ND<0.004 ND<0.004 ND<0.004
8/16/2006 ND<3.0 ND ND<0.00050 0.0019 0.0017 0.0058 0.093 030 ND<0.002 ND<0.002 ND<0.002 ND<0.002
12/27/2006 ND<3.0 ND ND<0.00050 0.2064 0.0029 0.0095 0.021 0.077 ND<0.002 ND<0.002 ND<0.002 ND<0.002
3/10/2007 ND<3.0 ND ND<0.002 0.0023 ND<0.002 ND<0.002 0.011 0.038 ND<0.008 ND<0.008 ND<0.008 ND<0.008
12127/2006 ND<3.0 ND ND<0.00050 0.0064 0.0029 0.0095 0.021 0.077 ND<0.002 ND<0.002 ND<0.002 ND<0.002
6/19/2007 NS NS NS NS NS NS NS NS NS NS NS NS
9/21/2007 ND<3.0 ND 0.023 0.19 0.032 0128 0.017 0.062 ND<0.002 ND<0.002 ND<0.002 ND<0.002
12/3/2007 ND<3.0 ND ND<0.00050 0.0024 0.000701 0.0042 0.0076 0.028 ND<0.002 ND<0.002 ND<0.002 ND<0.002
3/5/2008 ND<3.0 ND ND<0.00050 0.0023 ND<0.000501 H2<O 2501 0.0067 0.024 ND<0.0020 1 ND<0.0020 ND<0.0020 ND<0.0020
5/25/2010 ND<1.5 ND ND<0.0005 ND<0.005 ND<0.00051 ND<0.002 0.0024 0.0088 ND<0.005 ND<002 -- ND<O.DO2 N
Page 3 of 4
m m m m m m m m m m m m m m m m m m m
TABLE 2
SOIL VAPOR SAMPLING ANALYTICAL DATA (HYDROCARBONS AND FUEL OXYGENATES)
4050 Gosford Road, Bakersfield, California
TPH6G::: TPH -G:-: iBENZENEii TOLUENE : ETHKG:::::::TOTAL
SEAIZEiYE:::::3CYLE
i:: iihiTBE: is E :::::::TBA:::: 7:D1PE:: 7 ETBEi::: TAME ii:
VEW 5B i. 4/14/2005 17 70 NIX0.004 ND<0.004 ND<0.004 ND <0.004 31 0.032 ND<0.o16 ND<0.016 ND<0.016
5/18/2005 ND<3.0 ND 0.00062 0.0016 0.0013 0.0045 0.015 3 ND<0.002 ND<0.002 ND<0.002 ND<0.002
6/20/2005 23 94 0.00063 0.0011 ND<0.0005 0.00262 15 0.02 ND<0.002 ND<0.002 ND<0.002
7/14/2005 ND<3.0 ND 0.00069 0.0015 ND<0.0005 0.001 0.0031 0.011 ND<0.002 ND<0.002 ND<0.002 ND<0.002
8/9/2005 24 98 ND<0.002 0.0025 ND<0.002 ND<0.004 33 120 0.02 ND<0.008 ND<0.008 ND<0.008
9/28/2005 24 98 ND<0.001 0.0051 0.0023 0.0185 24 85 0.0046 ND<0.004 0.0041 ND<0.004
10/13/2005 10 ND ND<0.00I 0.0001 ND<0.001 ND<0.002 13 46 ND<0.002 ND<0.002 ND <0.002 ND<0.002
2/1/2006 ND<3.0 ND ND<0.00050 0.0011 ND<0.00050 ND<0.001 ND<0.002 ND <0.0072 NiX0.002 ND<0.002 ND<0.002 ND<0.002
5/1612006 ND<3.0 ND ND<0.001 0.0020 NIX0.0010 0.0021 0.180 0.64 NIX0.004 ND<0.004 ND<0.004 ND<0.004
8/16/2006 ND<3.0 ND ND<0.00050 0.0017 0.0011 0.0035 0.011 0.040 ND<0.004 ND<0.004 ND<0.004 ND<0.004
12/27/2006 ND<3.0 ND ND <0.00050 0.0073 0.0023 0.0080 ND<0.002 ND <00072 ND<0.002 ND<0.002 ND<0.002 NIX0.002
3/10/2007 ND<3.0 ND 0.00290 ND<0.002 ND<0.002 NIX0.002 ND<0.002 ND<0.029 ND<0.002 ND<0.002 ND<0.002 ND<0.002
6/19/2007 NS NS NS NS NS NS NS NS NS NS NS NS
3/10/2007 ND<3.0 ND 0.00290 ND<0.002 ND<0.002 ND<0.002 ND<0.002 ND<0.029 ND<0.002 ND<0.002 ND<0.002 ND<0.002
9/21/2007 ND<3.0 ND 0.022 0.13 0.037 0.192 0.003 0.011 ND<0.002 ND<0.002 ND<0.002 ND<0.002
12/3/2007 ND<3.0 ND 0.0026 0.00091 0.0057 0.0034 0.0089 0.032 ND<0.002 ND<0.002 ND<0.002 ND <0.002
3/5/2008 ND<3.0 ND ND<0.00050 0.0020 ND<0.00050 ND<0.0015 ND<0.002 ND <0.0072 ND<0.0020 NIX0.0020 ND<0.0020 ND<0.0020
5/25/2010 ND<1.5 ND ND<0.0005 ND<0.005 ND<0.00051 ND<0.002 ND<0.002 ND<0.0072 ND<0.005 ND<0.002 ND<0.002 ND<0.002
Notes:
TPH -G Concentration (uc./I) = TPH-G concentration (ppmv) x 10_' x 100 w/mole x mole/24.4 I x 106 uq/e
ND - Not detected
NS - Not sampled
NA - Not available
ppm - parts per million
ug/L - micrograms per liter
TPH-G - Total petroleum hydrocarbons as gasoline
MTBE - Methyl -tert butyl ether
TBA - Tert-butyl alcohol
DIPE - Di- isopropyl ether
ETBE - Ethyl tert-butyl ether
TAME - Ten -amyl methyl ether
Page 4 of 4
m m mm m m m m m m m M MM M mm s
TABLE
SOIL VAPOR SAMPLING ANALYTICAL DATA (FIXED GASES)
4050 Gosford Road, Bakersfield, California
IiATZ Aefign 6kidon. _ c ........... 6:' i :::::: pb.p.-D.oxid-e ....
VEW-IA
4/14/2005 10.1 79.7 ND ND 10.1
5/18/2005 12.6 79.5 ND ND 7.9
6/20/2005 10.1 80.5 ND ND 9.4
7/14/2005 10.3 79.1 ND ND 10.6
8/9/2005 10.0 78.9 ND ND 11.1
9/28/2005 10.9 76.9 ND ND 12.2
10/13/2005 12.3 79.0 ND ND 8.8
2/1/2006 12.8 79.6 ND ND 7.6
5/16/2006 14.1 79.8 ND ND 6.11
8/16/2006 14.1 79.4 ND ND 6.50
12/27/2006 15.1 79.4 ND ND 5.45
3/8/2007 18.3 78.8 ND ND 2.98
6/19/2007 15.8 79.0 ND ND 5.21
9/21/2007 16.0 78.2 ND ND 5.80
12/3/2007 16.5 77.8 ND ND. 5.67
3/5/2008 17.4 78.2 ND ND 4.39
5/25/2010 17.3 78.3 ND ND 4.35
VEW-IB
4/14/2005 10.4 79.8 ND ND 9.8
5/18/2005 12.6 79.7 ND ND 7.7
6/20/2005 10.2 80.4 ND ND 9.4
7/14/2005 10.8 79.3 ND ND 9.9
8/9/2005 10.3 78.8 ND ND 10.9
9/28/2005 11.2 77.0 ND ND 11.8
10/13/2005 11.0 79.6 ND ND 9.4
2/1/2006 12.9 79.9 ND ND 7.2
5/16/2006 14.2 79.9 ND ND 5.85
8/16/2006 13.7 79.6 ND ND 6.72
12/27/2006 15.0 79.6 ND ND 5.41
3/8/2007 18.2 78.9 ND ND 2.87
6/19/2007 15.9 79.2 ND ND 4.96
9/21/2007 15.8 78.5 ND ND 5.65
12/3/2007 15.8 77.9 ND ND 6.34
3/5/2008 16.5 78.4 ND ND 5.09
5/25/2010 17.3 78-3 ND ND 4.35
Page 1 of 5
m m m m m m m m m m m m m m m m m m m
TABLE 3
SOIL VAPOR SAMPLING ANALYTICAL DATA (FUXED GASES)
4050 Gosford Road, Bakersfield, California
ti ATI ::::::
a) .. ......:.
e:::::::::::::::::::.fo
iifrOgeu:::::::::::::::
Nz}
1lteftiane::::;:;:::: Cnrtian.l tanozcle:::::::::: C9r4on: Qitiiride:::
fCOz.....
VEW -2A
4/14/2005 8.3 80.9 ND ND 10.9
5/18/2005 10.1 80.3 ND ND 9.5
6/20/2005 7.0 80.9 ND ND 12.2
7/14/2005 8.6 79.6 ND ND 11.8
8/9/2005 7.2 79.1 ND ND 13.6
9/28/2005 16.0 77.5 ND ND 6.4
10/13/2005 9.9 79.5 ND ND 10.6
2/1/2006 12.3 79.7 ND ND 7.9
5/16/2006 14.0 79.6 ND ND 6.39
8/16/2006 13.0 79.5 ND ND 7.51
12/27/2006 14.6 79.4 ND ND 6.06
3/8/2007 15.9 79.0 ND ND 2.97
6/19/2007 15.9 78.7 ND ND 5.39
9/21/2007 15.5 78.2 ND ND 6.36
12/3/2007 16.6 77.9 ND ND 5.44
3/5/2008 16.8 78.0 ND ND 5.21
5/25/2010 17.7 78.4 ND ND 3.88
VEW -2B
4/14/2005 9.1 80.2 ND ND 10.7
5/18/2005 11.2 80.1 ND ND 8.7
6/20/2005 9.7 80.5 ND ND 9.9
7/14/2005 10.5 79.3 ND ND 10.2
8/9/2005 10.0 78.8 ND ND 11.2
9/28/2005 12.0 77.1 ND ND 10.9
10/13/2005 11.1 79.5 ND ND 9.4
2/1/2006 12.6 79.8 ND ND 7.6
5/16/2006 14.6 79.8 ND ND 5.62
8/16/2006 13.7 79.7 ND ND 6.68
12/27/2006 14.7 79.6 ND ND 5.68
3/8/2007 18.1 78.9 ND ND 2.97
6/19/2007 18.0 78.7 ND ND 3.31
9/21/2007 16.0 78.5 ND ND 5.56
12/3/2007 15.8 78.0 ND ND 6.26
3/5/2008 16.3 78.3 ND ND 5.33
5/25/2010 16.7 78.3 ND ND 4.98
Page 2 of 5
m m ! m m m m m m m m m m m m m m m m
TABLE 3
SOIL VAPOR SAMPLING ANALYTICAL DATA (FIXED GASES)
4050 Gosford Road, Bakersfield, California
iiAT> :::::::::::::::
4Qy)
OiCygep:::: ::::;::::::::::frogeo::::::::::
o ................ o::...... io .....
1ltefhane;::::::::::::::
CFIa . ..
ora ....
C$ rtiaii: lVteiioatide::::::
Q).. ...............
o.......................pfo .....
C9rboli:ITioXid:::::;::
fCQz? ....•
ro ........ .
VEW -3A
4/14/2005 6.2 81.5 ND ND 12.4
5/18/2005 8.2 80.7 ND ND 11.1
6/20/2005 5.5 81.1 ND ND 13.4
7/14/2005 6.4 79.4 ND ND 14.2
8/9/2005 6.7 78.6 ND ND 14.7
9/28/2005 7.2 76.0 ND ND 16.8
10/13/2005 8.5 78.9 ND ND 12.6
2/1/2006 10.2 79.6 ND ND 10.1
5/16/2006 11.9 79.5 ND ND 8.58
8/16/2006 11.1 79.1 ND ND 9.81
12/27/2006 21.5 77.8 ND ND 0.69
3/8/2007 15.3 78.2 ND ND 6.47
6/19/2007 14.9 78.5 ND ND 6.64
9/21/2007 14.8 77.5 ND ND 7.71
12/3/2007 16.1 77.7 ND ND 6.27
3/5/2008 17.0 77.6 ND ND 5.46
5/25/2010 18.1 78.4 ND ND 3.51
VEW -3B
4/14/2005 8.1 80.6 ND ND 11.3
5/18/2005 9.9 80.4 ND ND
6/20/2005 7.9 80.7 ND ND 11.4
7/14/2005 9.4 79.4 ND ND 11.2
8/9/2005 8.3 79.2 ND ND 12.5
9/28/2005 9.5 76.8 ND ND 13.7
10/13/2005 10.2 79.4 ND ND 10.5
2/1/2006 11.6 79.8 ND ND 8.6
5/16/2006 13.1 79.8 ND ND 7.06
8/16/2006 12.6 79.4 ND ND 8.05
12/27/2006 14.4 79.5 ND ND 6.10
3/8/2007 15.7 79.1 ND ND 5.22
6/19/2007 15.0 78.8 ND ND 6.13
9/21/2007 15.0 78.2 ND ND 6.74
12/3/2007 15.7 77.6 ND ND 6.72
3/5/2008 16.2 77.9 ND ND 5.86
5/25/2010 17.2 78.3 ND ND 4.55
Page 3 of 5
m m m m m m m® m o m m m m m m m m m
TABLE
SOIL VAPOR SAMPLING ANALYTICAL DATA (FIXED GASES)
4050 Gosford Road, Bakersfield, California
Ox fir
VEW4A
4/14/2005 Q WN) 6.9 81.5 ND ND 11.5
4/14/2005 (2 MIN) 6.8 81.6 ND ND 11.6
4/14/2005 (5 MIN) 8.0 82.1 ND ND 9.9
5/18/2005 7.8 81.3 ND ND 10.9
6/20/2005 6.8 81.2 ND ND 12.0
7/14/2005 7.8 79.7 ND ND 12.5
8/9/2005 8.5 78.8 ND ND 12.8
9/28/2005 9.8 76.8 ND ND 13.4
10/13/2005 8.8 79.5 ND ND 11.7
2/1/2006 11.0 79.8 ND ND 9.2
5/16/2006 12.8 79.6 ND ND 7.54
8/16/2006 13.0 79.1 ND ND 7.96
12/27/2006 14.2 79.1 ND ND 6.64
3/8/2007 15.1 78.7 ND ND 6.14
6/19/2007 14.7 78.5 ND ND 6.78
9/21/2007 14.4 77.9 ND ND 7.62
12/3/2007 15.9 77.5 ND ND 6.59
3/5/2008 16.3 77.7 ND ND 5.95
5/25/2010 16.7 78.2 ND ND 5.14
VEW4B
4/14/2005 (1 MIN) 8.6 81.6 ND ND 9.8
4/14/2005 (2 MIN) 9.5 81.2 ND ND 9.3
4/14/2005 (5 MIN) 8.7 81.7 ND ND 9.7
5/18/2005 13.3 80.0 ND ND 6.6
6/20/2005 9.1 81.1 ND ND 9.7
7/14/2005 11.7 79.8 ND ND 8.5
8/9/2005 9.8 79.6 ND ND 10.6
9/28/2005 10.2 77.8 ND ND 12.0
10/13/2005 10.2 80.3 ND ND 9.5
2/1/2006 12.6 80.2 ND ND 7.1
5/16/2006 13.9 80.1 ND ND 6.07
8/16/2006 13.6 79.9. ND ND 6.51
12/27/2006 14.8 79.7 ND ND 5.47
3/8/2007 15.7 79.4 ND ND 4.93
6/19/2007 15.3 79.1 ND ND 5.62
9/21/2007 15.5 79.1 ND ND 5.46
12/3/2007 15.2 78.2 ND ND 6.53
3/5/2008 16.1 1 78.5 ND ND 5.42
5/25/2010 16.3 78.6 ND ND 5.06
Page 4 of 5
m m = = m = m = = m = m = m = m =
TABLE
SOUL VAPOR SAMPLING ANALYTICAL DATA (FIXED GASES)
4050 Gosford Road, Bakersfield, California
fi ... ane jbg:MaonoxWe rbofiA).i6xiJ6::
VEW-5A
4/14/2005 5.7 81.8 ND ND 12.5
5/18/2005 10.0 80.2 ND ND 9.8
6/20/2005 3.3 81.6 ND ND 15.1
7/14/2005 5.8 79.9 ND ND 14.3
8/9/2005 4.5 79.8 ND ND 15.7
9/28/2005 5.2 76.9 ND ND 17.9
10/13/2005 7.7 79.8 ND ND 12.6
2/l/2006 11.8 79.7 ND ND 8.5
5/16/2006 12.9 79.7 ND ND 7.44
8/16/2006 11.4 79.5 ND ND 9.13
12/27/2006 14.0 79.2 ND ND 6.83
3/8/2007 15.3 79.0 ND ND 5.68
6/19/2007 NS NS NS NS NS
9/21/2007 14.6 78.2 ND ND 7.20
12/3/2007 15.2 77.8 ND ND 6.97
3/5/2008 16.1 78.2 ND ND 5.79
5/25/2010 17.7 78.5 ND ND 3.78
VEW-5B
4/14/2005 10.2 80.3 ND ND 9.5
5/18/2005 12.4 79.9 ND ND 7.7
6/20/2005 8.4 80.4 ND ND 11.2
7/14/2005 11.5 79.3 ND ND 9.2
8/9/2005 9.1 79.3 ND ND 11.6
9/28/2005 9.8 77.2 ND ND 13.0
10/13/2005 10.8 79.8 ND ND 9.4
2/1/2006 12.9 79.9 ND ND 7.2
5/16/2006 14.2 79.9 ND ND 5.86
8/16/2006 13.0 79.8 ND ND 7.24
12/27/2006 14.9 79.6 ND ND 5.50
3/8/2007 15.8 79.4 ND ND 4.80
6/19/2007 NS NS NS NS NS
9/21/2007 15.2 78.8 ND ND 6.08
12/3/2007 15.7 78.0 ND ND 6.27
3/5/2008 16.2 78.5 ND ND 5.32
5/25/2010 17.5 78.5 ND ND 3.98
Notes:
ND - Not detected above limit noted; NS - not sampled
Page 5 of 5
m m m m m m m m m m m O m m m m m m m
Figures
0
a
a
t
1
I
f -jeA
TO
ap,
kin"Al =:"
1 —41 1
01
016A, OR
ONIIID
11;: = , fit• -.
LLi
I tollsr.(
35 m1m 11111111m I
NIlu
s Sol iii' ;
TUR1581' mi'M 1wwA -1 r'4 IRM, .2
MR
ft
I
I
0
VEW -1A
VEW -2A 05/25/10
TPH-g
3
MTBE
TPH-g Benzene Toluene_ I
0
ND<0.00050]
PPm) PPm )
U)
p pm)
w
Z
ND<1.5
0
ND<0.005 ND<0.00051Y
U
0_
VEW -213 05125/10
Q
w
Q
TPH-g Benzene Toluene Ethlybenzen
u
05/25/10
P m) pp-) m
n
PPm)
VEW:A 05/25/10
ND<0.0005
I
F,
ND<1.5 0.00053
Benzene Ethlybenzen
w w
PH-
Ppm) PPm)
Toluene
m pp-)
LJ m
ppm)
ND<1.5 ND<0.0005 ND<0.005 ND<0.00051
O :2
0! 7) VEW -4B 05125/10
CL z
MTBE
TPH-g Benzene Toluene Ethlybenzen
WASH
m f (PPm) m) m
ND<1.5 0.00056 ND<0.005 0.00068
QI I TEPH _Benzene Toluene
VEW -1A
VEW -2A 05/25/10
TPH-g
0]
MTBE
TPH-g Benzene Toluene_ I Ethlybenzen
ND<0.00050]
PPm) PPm ) ppm) p pm)
w
Z
ND<1.5 ND<0.0005 ND<0.005 ND<0.00051Y
U
0_
VEW -213 05125/10
Q
w TPH-g Benzene Toluene Ethlybenzen
U
05/25/10
P m) pp-) m PPm) PPm)
ND<1.5 ND<0.0005 ND<0.0051 ND<0.00051
a
www
o Z
N - WJQUVI
O
0.0013
MTBE TBA
PPm) (PPm
0.0025 ND<0.(
MTBE
TBA
6—p M—) I —(p _pm)
ND<0.002
VEW -1A 05/25/10
o TPH-g Benzene
MTBE
PPm) Pm)
ETHER
ND<1.5 ND<0.00050]
MICROGRAMS PER LITER
ND< NOT DETECTED ABOVE LIMIT NOTED
VEW -18 05/25/10
Z TPH -g Benzene
Q Ppm) PPm)
0_ ND<1.5 ND<0.0005
Q
a
VEW3A 05/25/10
O
TPH-g Benzene
PPm)
m m
ND<0.002
ND<1.5 0.00053
VEW3B 05125110
TPH-g Benzene
ppm) ppm)
ND<1.5 ND<0.0005
a
www
o Z
N - WJQUVI
O
0.0013
MTBE TBA
PPm) (PPm
0.0025 ND<0.(
MTBE
TBA
6—p M—) I —(p _pm)
ND<0.002 ND<0.005
TPH–g TOTAL PETROLEUM HYDROCARBONS
AS GASOLINE
MTBE METHYL TERT –BUTYL
ETHER
TBA TERT –BUTYL ALCOHOL
yg /L MICROGRAMS PER LITER
ND< NOT DETECTED ABOVE LIMIT NOTED
MTBE TBA
PPm) PPm)
0.0033 ND<0.005 Q
a
TBA O IMTBE
ppm) PPm)
ND<0.002 ND<0.005
CAR
MTBE TBA LLLL WASH
PPm) PPm)
0.0028 ND<0.005
I
MTBE TBA
PPm) PPm) I
0.0025 1 ND<0.005
MTBE _ _TBA _
P m (PPm)
0.0036 ND<0.005
I
MTBE TBA
za
a
CANOPY
STATION
BUILDING
DISPENSER —
ISLAND
TYP)
PLANTER
VEW -1
TER
VEW -5
VEW -4
VE –r
AL
VEW -3
WHITE LANE
PLANTER
UST
TYP)
N
W E
S
LEGEND
VEW -1 A NESTED VAPOR WELL LOCATION AND DESIGNATION
TPH–g TOTAL PETROLEUM HYDROCARBONS
AS GASOLINE
MTBE METHYL TERT –BUTYL
ETHER
TBA TERT –BUTYL ALCOHOL
yg /L MICROGRAMS PER LITER
ND< NOT DETECTED ABOVE LIMIT NOTED
ID E LTA CONSULTANTS
SHELL OIL PRODUCTS US
SHELL SERVICE STATION
BAKERSFIELD, CALIFORNIA
FIGURE 3
SOIL VAPOR
ANALYTICAL RESULTS
5/25/2010
4050 GOSFORD ROAD
BAKERSFIELD, CALIFORNIA
s
a
1
Appendix A
City of Bakersfield Fire Department Letter dated May 11, 2010
1
I
F,
1
HOWARD 1-I. WINES, III
DIRECTOR
PREVENTION SERVICES
210114 Street
Bakersfield, CA 93301
VOICE: (661) 326 -3979
FAX: (661) 852 -2171
May 11, 2010
Ms. Andrea Wing
Shell Oil products US
20945 S. Wallington
Carson, CA 90810
21 (IT N _ ME D MAY 1 4 2010
A3Y:......... ......
RE: Underground Storage Tank Clean -up Closure Report 4050 Gosford Road,
Bakersfield, California
Dear Ms. Wing:
This is to inform you that this department has reviewed the result of the Underground
Storage Tank Clean -up Low -Risk Closure Soil Conformation Report dated February 25,
2010, prepared by Delta Consultants. As provided by earlier reports, this department had
determined that passive remediation did not fully remediate the contaminated soil
at the site, as there was no set levels set for MtBE clean -up to begin with.
Therefore, prior to a "no further action" letter being issued the following will
need to be completed and submitted to this office for review.
A final sampling of the vapor wells (1 -5).
A work plan for the removal of the vapor wells.
If you have any questions regarding this matter, please contact me at (661) 326 -3979.
Sincerely,
Craig Perkins R.E.A.
Hazardous Materials Specialist
cc: P. Gilchrist REA, Delta Consultants
J. Whiting, RWQCB
WIN /
PEq
REA 1 -08330
Uc IM-
Ronald J. Fraze
Fire Chief
Tyler Hartley
Douglas Greener
Deputy Chiefs
HOWARD 1-I. WINES, III
DIRECTOR
PREVENTION SERVICES
210114 Street
Bakersfield, CA 93301
VOICE: (661) 326 -3979
FAX: (661) 852 -2171
May 11, 2010
Ms. Andrea Wing
Shell Oil products US
20945 S. Wallington
Carson, CA 90810
21 (IT N _ ME D MAY 1 4 2010
A3Y:......... ......
RE: Underground Storage Tank Clean -up Closure Report 4050 Gosford Road,
Bakersfield, California
Dear Ms. Wing:
This is to inform you that this department has reviewed the result of the Underground
Storage Tank Clean -up Low -Risk Closure Soil Conformation Report dated February 25,
2010, prepared by Delta Consultants. As provided by earlier reports, this department had
determined that passive remediation did not fully remediate the contaminated soil
at the site, as there was no set levels set for MtBE clean -up to begin with.
Therefore, prior to a "no further action" letter being issued the following will
need to be completed and submitted to this office for review.
A final sampling of the vapor wells (1 -5).
A work plan for the removal of the vapor wells.
If you have any questions regarding this matter, please contact me at (661) 326 -3979.
Sincerely,
Craig Perkins R.E.A.
Hazardous Materials Specialist
cc: P. Gilchrist REA, Delta Consultants
J. Whiting, RWQCB
WIN /
PEq
REA 1 -08330
Uc IM-
1
r
Appendix B — Field Data Sheets
1
FIELD DATA SHEET
Shell Service Station
4050 Gosford Rd.
Bakersfield, CA
Date: s12.r % 6
Arrival Time: : /
Departure Time: S
Field Tech. Initial:
Project No.: PA4050G -1
O &M
o Out of Scope
I) ON ARRIVAL:
S' 1
l . Review Health & Safety Plan
2 l
2. a) Calibrated PID to Zero Gas
Manifold Vacuu
Stinger g)
VEW -2A
7 H 3
b) Calibrated PID to Hexane
Jf AIfnotcalibratedtohexaneindicatecalibrationgas:
Stinger (iyJt) h //Lo)
3. Take Ambient Air PID Readin s
Manifold Vacuum VEW -3A
Ambient Air PID Reading If concentrations are above 0.0 ppmv,
D U notify Marsaili Gillecriosd before continuing
Z.
to perform O &M.
4. Take PID Readings Once a Month PID readings rec uired by APCD)
Highest Well PID Reading If any well concentration is above 4,819
Influent Before Dilution) 6.6 ppmv, stop purging the wells and notify
ppmv hexane) William Lantz.
II) SVE OPERATIONS DATA
nwg) i
4. Record Manifold Vacuum
Manifold Vacuum VEW -5B
Mes snrements: Arrival Notes
Manifold V,apuu VEW -lA
Stinger,(iw- or HZ, C S' 1
Manifold Vac um VEW -113
Stinger i 7y2;o) 2 lg) ('?
Manifold Vacuu
Stinger g)
VEW -2A
7 H 3
Manifold Vacuum VEW -213
Stinger (iyJt) h //Lo)
Manifold Vacuum VEW -3A
Stinger (ii ;, -42 0
Manifold Vacuum VEW -3B
Stinger P20) Z.
Manifold Vacuum VEW -4A
Stinger () a N29
Manifold Vacuum VEW -4B 8
Stinger i g) ; ,, P2 0
Manifold Vacuum VEW -5A
Stinger nwg) i
Manifold Vacuum VEW -5B
Stinger (' g) ; " Nz)
YA Shell Sites4W050 Goefordl GBNERALMMFold&AO&MField Data Sheet4050 GoefordAm
t
u
1
t
FIELD DATA SHEET
Shell Service Station
4050 Gosford Rd.
Bakersfield, CA
III} SVE System Field Data
1. Record Svstem Data
Date: S/2,31199
Arrival Time: I Z ' 1 y
Departure Time: fj
Field Tech. Initial: j176
ProjectNo.: PA405OG -1
O&M
0 Out ofScope
Sample ID VOCs
ppmv as hexane} Nodes
Well VEW -1A
a -
Well VEW -113
Well VEW -2A
Well VEW -2B
f_v
Well VEW -3A
Well VEW -313
6 .b
Well VEW4A
Well VEW -413
Well VEW -5A
Well VEW -5B
Z 3
Average Well Ifthe average concentration is
Concentration above 4,819 ppmv, stop
Sum ofPID readines) purging the wells and notify
ofwells William Lantz.
Y:1 Shell Sitea\A4050 GoeforkGBNERAM&M PoIdeAU &MFieldData Sheet 4050G- ford.dw
J
1
0
s
FIELD DATA SHEET
Shell Service Station
4050 Gosford Rd.
Bakersfield, CA
V) Sampling
Take Vapor sample:
Dater 10
Arrival Tune:
Departure Time:
Field Tech. Initial:
ProjectNo.: PA405OG -1
O &M
Out of Scope
FZ(Yes No
Instructions:
1. Take Tedlar Bag sample of Influent and coordinate with lab for pickup.
2. Collect Vapor sample from each well for laboratory analysis at the
O &M site visit of each month for the first 6 months and quarterly thereafter.
Take Other samples:
Yes gNo
Instructions:
Y:\ SIM11 Silel\414050 Gowlordl GENERA4\0 &MFolder\D &M Field Data Sheet 4050Godord.d-
1
C
r
1
FIELD DATA SHEET
Shell Service Station
4050 Gosford Rd.
Bakersfield, CA
Date: 5124 / U
Arrival Time: f
Departure Time:
Field Tech. Initial: 04
ProjectNo.: PA405OG -1
O &M
Out of Scope
Field Notes:
l
rQe BviceQ /4l4 sf Z3 . H Ri is f _ SA wR
L.cr" r 0% -'r i 'f C
12,' Yo 1.0
A
P, e et
1
S o _ ,Fi ti r,lLtW c.e L4c-// j:t / e. a tt:2e .-a s.. 4. R
Gvd /4"
4. a w.4 o
C (aj e cee tTCF#
jrC' a / 'T'to"e ljq'haN ?'40,
Y:1 Shell Site9WW050 Go,fordl GENERAM&M FoldcAO&M Field Date Sheet 4050 Go,ford.doc
J
1
Fh
ally Vehicle Check Est
j,, Unit P5A- Monrovia Date: , / 2szl b
Make Ford Model: Focus (Bright Blue)
VIN 1FAFP34N45W181983 Lic #: 5LJJ106
Year: 2005
LL
Checked By: De— I
Site/Project Lfdam{ O i. b .rA
Item Departure Return Item Departure Return
Vehicle RegistrallonPresent/Current ffaaMo) Interior Clean eaMo
Insurance Card Present /Current eallo Defroster/Fan Checked Yes/No
Headlights Operating (YewWo) Brake Lights Checked es/No
Tum Signals O eratfn e&Wo Tall Lights Chedkad es/No
Emergency Fleshers Checked es/No Windshield Wipers Checked es/No
R. FrontTire Inspected es/No MlrroraMorn Checked Yes/No
R. Rear Tire In cted es/No Brake Pedal Checked esfNo
L. Front nm Inspected esfNo Seat Belts World es/No
L Rear nra Inspected esMo Exlerlor Clean asMO
Spare Tire Checked es/No A11 Compartments Locked esMo
Parking Brake Operating es/No Odometer Reading before departum f7 D
Doors Locked es/No Odometer Reading after return:
Fire Extinguisher property stored and readyforuse
es/No Please comment If No Vehicte Walk Around Completed es/No)
Comnents/Unusual AcN
Please Indicate any dents, scratches, etc., to exterior ofvehicle on (he following figures:
D
0
TOP VIEW
RIGHT SIDE
PASSENGER)
o
O
LEFT SIDE FRONT
DRIVER)
Don't Forget the 5 Smith Svstom Keys!
I. Alm high. 2. Get the trig Picture. 3. Keep Your Eyes Moving.
4. Leave Yourself An Out. S. Malm Sulam i he I See You.
IPlease retain a copy In vehicle binder and return original to Vehicle Manager
f1tt6's; (i3fgrf;Ri.
i
a
0
1
DELTAA ENVIRONMENTAL CONSULTANTS
DAELY (TAILGATE) BEALTH A111 D SAFETY BRIEFING LOG
Date: WV0 Time: Address: yb,SO Gros %, e fi'ea /
Site Name/Number: J c--1 Yv r O4 / D City /State: 4 Jf.' L G¢
Brief description ofwork: ef c Ile f- { o - r 4 4~`0 Lsj Ao r z ,. 41Lf
TAILGATE WETHNG SUBJECTS REVIEWED
Subcontractors must discuss their work activities and review their JSAs during the tailgate.
PPE Requirements (hard bat, steel toes, vest, glasses, ear plugs, & gloves)
Emergency Procedures (evacuation procedure, meeting locations, hospital route, phone #s)
JSAs (list. Delta and sub. JSAs for today's work):
Chemical. I3azards (site contaminants, chemicals brought on site)
Exclusion Zone (cones with flags 42 ", caution tape, totally enclosed)
Vehicular Traffic and Traffic Control
Equipment/Hand Tools (inspect all tools and equipment, including fire extinguishers, prior to start ofwork)
Permits (list permits for today's work): /V o N
Hazard Recognition Analysis (see below)
Life Saving Rules (see next page)
Toolbox Talk (list topic) ,.,c M4 07 - J 7`e-
Subcontractor participated in tailgate meeting, discussed work tasks, work hazards and reviewed then- JSAs.
HAZARD RECOGNITION ANALYSIS
Motion
Pressure
slolo ical Eliminate
v., $. Redlatlo
CoTtro t any
pvo an
Heat / old Electrical
r.,.'}...... Griylty '
C DedsbnPONAssodules, hoc.
October 19, 2004
If subcontractor JSAs discussed earlier did not include an HRP review, briefly
discuss the subcontractors work tasks and how the HRP energy sources apply.
L/ Motion- How? C R +-,J rD
Chemical- How? li tj„e a
Radiation -low?
V Electrical- How? e lG C- IL
Gravity- How? .f'11;e -f4 -Jlv 4
J Heat/Cold- How? r t,
Biological -How? Z1._r
Pressure- How? e.,/4
u
F
12 LIFE SAVING RULES: Check off which Life Saving Rules apply to today's work. provide example(s).
J
t/ '% orkwa3fliavnitdworkperardt- wheniTclu recL
Co zrluEt gas kstsr'irewreclium•ed,
Twifv energy isolation before work i'iegiass.
aamp3e(3): /v ell i
Mp'lers }: )p /I> A4 4L C06
ExainpPe(.$): N`--d
ZGbtwu qu&o'iaadon. Wore enfe-LIngaconrmedspace Esampb(i):, 'N 1,4
Dbtnluauth t•i2adombeEvreavet•iding or 1A
di,ablingcriticategLd anent.
F tactvoums:]firua -rdG tizllan vroglin; p4 l.eigist. satnpte(s):
1 —Do .nat wn1k under a susptuded load.
Do- not suacalte outdcle o$ designated arem%
lta alcohol or &-n.gs w1ule-wrorldng, ax• rl Ang.
While dt-Mn_, do not use your ploae and do not
exceed eecl'Ifinfis.
V Weir your seat belt.
l*olto;v preset ib ddourueyl 1an"Elnent Plam
Meeting Atte3rndees:
Print Name Signature
Esauiple(s). v /,*4
ri mapl.e(s7: y itvhGf 0
F'ViML31e(s): N"
ple(s): 1- 2Ttn W i'Y f IPA /A i
e 1 s
LIampie(s):
EMuumplC -0):
y
1 Meeting Conducted by:
Natne (Site Health and Safety Officer): `- Signature:
Delta Project Manager Signature on completed form:
October 19, 2004
J
r
1
v
hl
1
M = = = = s M M M = M = = = = = M
E LTA m Delta Consultants Job Safety Analysis JSA
HooW Barely Security Envlronrnent war
Q 0D 0 -
bask Description: System O &M Daie JSA Developed:
Name and Address of Worksite: O.i'u A.,
Project Manager /Site Supervisor: J -/ I a
Pote "ntial l;azards;lnvolved With Thts
3 PPE Required for this Job Special Considerations Required Permits
Hard Hat .
Safety Glasses ,ET Gloves (specify type)f44'tx
Lighting
Nearby Activities
Time of Day /Night
Tight/Crowded Work Space
NonegConfined Space
Safety Toe Shoes Other. Simultaneous Operations Environmental Sensitivities Hot Work
Hearing Protection Other. Weather and Temperature Automatic Equipment Ground Disturbance
Hi -Vis Traffic SafetyVest Other. Extremes Other: Working From Heights
Respirator
Use knee pads as necessary.
Other Permit
Consider all Energy Sources: ;lotion, Chemical, Radiation, Electrical, Gravity, Heat/Cold, Biological, and Pressure. Include al! Stored Energy.
9 , , ,
Step Sequence of Bastc Task Steps' ' Pote "ntial l;azards;lnvolved With Thts Howwill the energy be managed? < :L•ist: °; Sto 1Nork fri ers` ' P 99
Nurriber Lrsf the steps required to performthe actmty Step Control'Nieasures -.. for thts task. °(we wtninthesluence'the ;occur . q Y ) Lisftge energy sources) Eliminate,.COntrol; Protect) :stop' a joii ifany of thesettr
occur)
Open/Close Well Manways Motion- Injuries (scraped hands, knees) Wear leather or synthetic work gloves, Proper PPE not
t Use knee pads as necessary. available, or in poor
condition.
Motion, Gravity- Back strain, pinch Proper lifting techniques, do not lift over 50 Manways too heavy, points, exposure to debris, trip hazard Ibs (large manways), Properly secure equipment not
manway lid so potential trip hazard is not available, to lift safely. created_ Watch walk way.
Motion, Gravity- Slip /trip /fall Observe poor well pad/manway conditions
that require repair and report them to PM Pad/manway condition
too poor to work safely"
Biological hazards Be aware of potential insect hazards, and
take action to avoid contact (long sleeve Unwanted contract with
shirts, insect repellent), Inspect area for biological hazards
potential poisonous plants, and take action cannot be managed or
to avoid contact (long sleeve shirts, avoid controlled.
contact Wouter clothing, etc.
Gauging Monitoring Wells Motion- Traffic Wear reflective safety vest, Be aware of Proper PPE not
traffic patterns. Set up traffic control. Use available, or in poor
2. buddy system as needed. Be aware of condition. Adequate
P other potential activities /work being traffic control not
conducted at site. I available.
Consider all Energy Sources: ;lotion, Chemical, Radiation, Electrical, Gravity, Heat/Cold, Biological, and Pressure. Include al! Stored Energy.
m m m m m m m ® m m m m m m m m m
M M M = = = = M M = = = = = = = = =
13 E LTA, Delta Consultants J ®b Safety Analysis (JSA)
Cohsider all Energy Sources: Motion, Chemical, Radiation, Electrical, Gravity, Heat/Cold, Biological, and Pressure. Include all Stored Energy.
W9TYANAP
77.
15'SP
St& enq ' 0 ku. e.
1. qI- P it azarav nvolve VWJth-F W t td LlSt ippergyv1. 01 o:..u. S k
oun bor L1S" thestep required 10 pertor theI . . - . :.
thesequene,heyocUr
Step Con rol M@asllies Y
yr rTnggers :: I
h s,.w
ot
rListtheenergyimiistei.confrol,Protect)
c-
f
s 00 e"d If ofA: e
Chemical- Exposure to hazardous Proper PPE (chemical resistant gloves, PPE not available or in
9 substances eye protection), Proper decontamination of poor condition,
equipment. chemical exposures
exceed PPE protection
factor
Motion- Injuries (hand scrapes, pinch Proper PPE (leather work gloves, hard
points, struck by objects, flying debris) hat, safety glasses) PPE not available or in
poor condition
Radiation, Heat/Cold- Hazardous Wear sunscreen and/or protective clothing
weather conditions when working in intense sunlight, Wear Weather conditions
proper clothing to avoid heat/cold stress, unsafe to work in,
Drink plenty of fluids to avoid dehydration, workers not wearing
proper attire.
Collect Operating System Pressure- Noise Wear protective equipment, conduct noise PPE not available,
3. Parameters survey as needed. noise levels exceed
action levels
Motion, Heat/Cold, Pressure- Physical Pay attention to overhead or trip hazards.
Hazards Confirm that all protective equipment Moving parts, hot/coldguardsareinplacebeforecollectingpartsnotshielded.
readings. No loose clothing.
Chemical- Exposure to hazardous Proper PPE (hand protection, eye PPE not available or in
substances protection), Proper decontamination of poor condition,
equipment Record breathing zones and chemical exposures
address vapors per H and S plan. exceed PPE protection
factor
Electrical- Shock/Electrocution Use Lock out Tag out procedures. If
amperage readings are required, only LOTO procedures nottrainedstafftakereadings. available, not being
followed. Workers not
trained in LOTO
Cohsider all Energy Sources: Motion, Chemical, Radiation, Electrical, Gravity, Heat/Cold, Biological, and Pressure. Include all Stored Energy.
m = = m m = m = = = m ® ® m m = m
r
DELTA Delta Consultants Job Safety Analysis JSA
Ste Sequence :of Basic Task'Steps Potential Hazards Involved With This How will the energy be managed ?;.Lestp .: Stop;WoLisf;thesteps.regwred to perForm the actwity Step' Control Measures 7Numberfor >this task (Vlle.wininthesequencetheyoccur] (List the' energysources)" (Eliminate; Control; Protect) sfop'ihe. }ob ifany of these
r .. .. ,..:.
Consider all Energy Sources: Motion, Chemical, Radiation, Electrical, Gravity, Heat/Cold, Biological, and Pressure. Include all Stored Energy.
Remediation System Shut Down Motion, Electrical, Pressure- System Follow shut down procedures posted in
malfunction. system enclosure and O &M Manual.
4.
f A Procedures not being
followed, unexpected
system malfunction
Electrical, Pressure, Chemical, Hot/Cold- Follow LOTO procedures LOTO procedures not
Unexpected release of energy. available, not being
followed. Workers not
properly trained in
LOTO.
Motion- Hand scrapes, pinch points, Make sure tools are in good working
struck by objects condition and the proper tool is used for
each task. Wear leather or synthetic work PPE not available or in
gloves appropriate for task being poor condition. Correct
completed. tools are not available
or in poor condition.
Changing Oil /Filters Motion- Hand scrapes, pinch points, Make sure tools are in good working
maintenance) struck by objects condition and the proper tool is used for
each task. Wear leather or synthetic work
gloves appropriate for task being PPE not available or in
completed. poor condition. Correct
5•. J`f /P( tools are not available
or in poor condition.
Consider all Energy Sources: Motion, Chemical, Radiation, Electrical, Gravity, Heat/Cold, Biological, and Pressure. Include all Stored Energy.
m m m m m m m m m = m = = = = m ® m
D LA . Delta Consultants Job Safi Anal sis (JSA) -- rSafetyY
Number Cistthe steps required tope. orm iheachvity
in theaequence they occur)
S #8A`'
List the energy'sourcesj
COntfOl nlleasiirL'S
E{iminate Control;;Protect) e.
0p* the' jobfany of these
occur)
Gravity, Motion- Lifting, working in tight Some maintenance activities require lifting
spaces. and working in tight spaces. Assess the
activity and plan accordingly. Do not lift Equipment too heave to
A over 50 Ibs without assistance. Use two be lifted safely.
people if required. Do not squeeze into Workers should not
tight spaces. enter spaces too tight
io not easily walk into.
Rernediatimn System Startup Motion, Electrical, Pressure- System Follow start up procedures posted in procedures not being
6. malfunction. system enclosure and O &M Manual followed, unexpected
m1pr system malfunction
Chemical- Material Spill Follow startup procedures, check all PPE not available, startvalvesorpipingthatwererequiredtobeupproceduresnotremovedtocompletemaintenance. Wear being followed. chemical resistant gloves, safety glasses.
JSA Team Member Agreement
By my signature below, I understand and agree to the following statements and will strive t
I have participate din the development of this JSA and will use the proper equipment,
procedures, and PPE
b 1 know and understand the energy sources and potential hazards involved in the steps.
If a Stop the Job trigger occurs, I will safely stop the job and alert others to do the same.
P.rmt.Name i -:- <
Site Safety Officer i nafur Date
JSA Team Member Agreement
By my signature below, I understand and agree to the following statements and will strive t
I have participate din the development of this JSA and will use the proper equipment,
procedures, and PPE
b 1 know and understand the energy sources and potential hazards involved in the steps.
If a Stop the Job trigger occurs, I will safely stop the job and alert others to do the same.
P.rmt.Name i -:- < v 'S:, 3 • , . , i naturee
i
o achieve a safe job outcome for me, my co- workers, and the job -site.
I understand and will apply the energy management actions for which I have
responsibility.
If any condition or activity occurs that I consider unsafe I will safely stop the job and
report the situation
j Proret- -l are e, " r Si Yrature
i
Consider all Energy Sources: Motion, Chemical, Radiation, Electrical, Gravity, Heat/Cold, Biological, and Pressure. Include all Stored Energy.
m m m m m m m m = = m = = m m = ® m
t
DELTA EMPLOYEE
SITE HEALTH AND SAFETY PLAN REVIEW RECORD
I acknowledge that I have read and understood the contents of this Site Health and Safety Plan and I agree to abide by
all provisions as set forth. I have also checked in with the site client contact to alert them of our presence and for au
daily safety issues. Please note: "no Implements are to be brought on a Delta site, or while performing Delta business
that are, or are intended to be used, as weapons (such as: guns, knives, etc.) ". Firearms are expressly prohibited.
By signing below you are certifying, that this policy is upheld. Delta retains the option to audit your personnel and
equipment to assure your compliance.
October 19, 2004
Signature Date
JrA5 //o
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
CONTACTOR INSTRUCTIONS PRIOR TO START OF WORK 1. Review r6mt,chock appropriateboxes, reed and sign bottom ofthis form 2. Inform dealer, manager, or site representative ofthe job to be performed and potential safety concerns and obtain signature
Station # Statiart Address.
o sd G of e d /I, a C2
Work Order Number.
Cr4 D G
Date:
3 2- /
Contra rCompany Names3 Contrraa /pr person in ccharge(yoydnt Hama): =n1barofWarkers:
L/ 1'T L '
JSA Reference Nu er. Start Time: End Time:
C
Labor. Traver ime Travel Dlstance:
Problem/Work Description:
c vzt- of Retum Call: yes / no
Damage Claim: yes / no5
PPE REQUIRED (CHECK ANDfOR FILL BLANKSPACE
SAFETY VEST
PROTECTIVE CLOTHING
HARD HAT SHOES & BOOTS
GLOVES SAFETY GLASSES /GOGGLES
HEARING PROTECTION RESPIRATOR
WELDING PPE [] OTHER:
MR
TASKSTEP ":::.. : , Hazardsnotcovered by'JSA Haw to redtxe or efiminels risk PPEtIo'be Wom: .
WORK DOCUMENTATION REQUIREMENTS: LowerRisk - no JSArequired m2mq= 4herRisk - JSA required Higher Risk - JSA required & appropriate dhaddist completed (see below)
Fgamples ofHigherl Medium 9sk tasks:
L7
Work at heights in all raises on open sites - on dosed sites Hno JSA present
Trenching or wwavetlon related to underground tank I product line
Heavy lffdng
El Workin confined spaces (e.g. tank, interceptor or deep manhole entry)
13 Hotwork with riskof product or vapor ignition
0 LPG system degassing, installation or maintenances
Contractor representative name Signature
Operating sites: to be signed by7theSfta Representatives
Non- operating sites: to be sige Contractor / {,q 1
Representative onry 4 j
GENERAL SAFETY CHECKS
i
Q- Have all site personnel beenrmed? Site Representative Name Signature
Has fuel derroery service b Wormed?
Is a fuel deliverydue?
Have isolation procedures Fn agreed - lock outitag out?
off? Areworkareas cordoned W protectworkers, site ateff & public?
Olttert
Contredor signature
GENERALSAFETY CHECKS
Hasthe worts area etitidy and safe?
Are site personnel ofstatus ofwork including remaining isolation?
Are changes to equip 'ant documented and
communicated? Site Representative Name Signature
Other?
r
PARTS - Ordered, replaced, andfor disposed of (Include model and serial #'s as appropriate)
The contractor, through is authorized representative, shall sign, issue, and be solely responsiblefor all job clearance toms and the obligations arising there under eppUCabls to the Wont
This form covers importantremindersand Isnot intended to reliave contractorfrom safely performing the wcrx incompliance with all applicable laws and regulations.
The Site 206Na ?0$I&e may require the contractor to stopwork ifit appears that the contrador or any of itsworkers arefailing W comply withthe requirements In the applicable items ofthis form orother applicable safety requirements.
m = m m m m = m m m = m m m m m m
00
O
CO)
r
D
0
0
CL
0
A)
5
0
ft
0
C
A
0
Q
D
0
0
El 0
me
0)
CL
Co
CLm 0u
0 iS
Cn
L
L El
ic
Sr 4 9
C3 m Ll H
Sq q
gu
0 0
CL
TPH • Purgeablo (8260B)
TPH -Extractable (80115M)
BTEX (82008) A) b 0Q)
b6Oxygenates (82608)
10MTBE (82606)
TBA (82608)
DIPE (82608) w
ju
TAME (8200e)
ETBE (82508)
CL1,2 DCA (8260B)
EDO (8260B)
IDCm CnEthanol (8260B)
Methanol (8015M) 4
G
zXXXXXXXXXXVaporBTEXFueOxygenatesIl
ITO-15) It R
X X x x x c x Vapor TPH-q (TO-3)
Cn 44xxxxxxxxVaporFixedGases (ASTM D19461
CD
rp
r.L
SIC
G
CL
R
00
O
CO)
r
D
0
0
CL
0
A)
5
0
ft
0
C
A
0
Q
D
0
0
1
1
s
1
II Appendix C — Laboratory Reports and Chain -of- Custody Documentation
FI
11
1
t
1
t
7
alscience
nvironmental
AL aboratories, Inc.
June 09, 2010
Phil Gilchrist
Delta Environmental Consultants, Inc.
911 South Primrose Avenue, Unit K
Monrovia, CA 91016 -8403
Page 1 of 15
O t4 A.CCp9O
ct
Subject: Calscience Work Order No.: 10 -05 -2007
Client Reference: 4050 Gosford Rd., Bakersfield, CA
Dear Client:
Enclosed is an analytical report for the above - referenced project. The samples
included in this report were received 5/26/2010 and analyzed in accordance with
the attached chain -of- custody.
Unless otherwise noted, all analytical testing was accomplished in accordance with
the guidelines established in our Quality Systems Manual, applicable standard
operating procedures, and other related documentation. The original report of
subcontracted analysis, if any, is provided herein, and follows the standard Calscience
data package. The results in this analytical report are limited to the samples tested
and any reproduction thereof must be made in its entirety.
If you have any questions regarding this report, please do not hesitate to contact
the undersigned.
Sincerely,
Calscience Environmental
Laboratories, Inc.
Xuan Dang
Project Manager
CA -ELAP ID: 1230 0 NELAP ID: 03220CA 0 CSDLAC ID: 10109 • SCAQMD ID: 93LA0830
k)a 7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL:(714) 895 -5494 • FAX: (714) 894 -7501
I
Page 2 of 15
alscience o, N r c o
nvironmental Analytical Report
aboratories, Inc.
Delta Environmental Consultants, Inc. Date Received: 05/26/10
911 South Primrose Avenue, Unit K Work Order No: 10 -05 -2007
Monrovia, CA 91016 -8403 Preparation: N/A
Method: ASTM D -1946
Units: v
Project: 4050 Gosford Rd., Bakersfield, CA Page 1 of 2
Lab Sample Date/Time Date Date/Time
Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID
VE -1A 10 -05- 2007 -1 -B 05/25/10 Air GC 34 N/A 05/26/10 100526L01
13:00 16:22
Parameter Result RL DF Qual Parameter Resu RL DF Qual
Methane ND 0.500 1 Oxygen + Argon 17.4 0.500 1
Carbon Dioxide 4.27 0.500 1 Nitrogen 78.3 0.500 1
Carbon Monoxide ND 0.500 1
VE -1B 10-05- 2007 -2 -B 05/25/10 Air GC 34 N/A 05/26/10 100526L01
13:18 16:56
Parameter Resul RL DF Qu 1 Parameter Result R DF Qual
Methane ND 0.500 1 Oxygen + Argon 17.3 0.500 1
Carbon Dioxide 4.35 0.500 1 Nitrogen 78.3 0.500 1
Carbon Monoxide ND 0.500 1
VE -2A 10- 05- 2007 -3 -B 05/25/10 Air GC 34 N/A 05/26/10 1005261-01
13:30 17:29
Parameter Resul RL DF Qual Paramete Result R DF Qual
Methane ND 0.500 1 Oxygen + Argon 17.7 0.500 1
Carbon Dioxide 3.88 0.500 1 Nitrogen 78.4 0.500 1
Carbon Monoxide ND 0.500 1
VE -2113 10- 05- 2007 -4-B 05/25/10 Air GC 34 N/A 05/26/10 1005261-01
13:42 18:03
Paramete Resul RL DF Qual Parameter Resul RL DF Qual
Methane ND 0.500 1 Oxygen + Argon 16.7 0.500 1
Carbon Dioxide 4.98 0.500 1 Nitrogen 78.3 0.500 1
Carbon Monoxide ND 0.500 1
VE -3A 10 -05- 2007 -5-B 05/25/10 Air GC 34 N/A 05/26110 100526L01
14:05 18:36
Parameter Result RL DF Qual Parameter Result RL DF Qual
Methane ND 0.500 1 Oxygen + Argon 18.1 0.500 1
Carbon Dioxide 3.51 0.500 1 Nitrogen 78.4 0.500 1
Carbon Monoxide ND 0.500 1
VE -3113 10- 05- 2007 -6 -B 05/25/10 Air GC 34 N/A 05/26/10 1005261-01
14:15 19:21
Paramete Result RL DF Qual Parameter Resul RL DF Qual
Methane ND 0.500 1 Oxygen + Argon 17.2 0.500 1
Carbon Dioxide 4.55 0.500 1 Nitrogen 78.3 0.500 1
Carbon Monoxide ND 0.500 1
RL - Reporting Limit DF - Dilution Factor Qual -Qualifiers
7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL:(714) 895 -5494 FAX: (714) 894 -7501
1
F
CI
I1
Page 3 of 15
science N A C C
nvironmental Analytical Report
I
aboratories, Inc.
Delta Environmental Consultants, Inc. Date Received: 05/26/10
911 South Primrose Avenue, Unit K Work Order No: 10 -05 -2007
Monrovia, CA 91016 -8403 Preparation: N/A
Method: ASTM D -1946
Units: v
Project: 4050 Gosford Rd., Bakersfield, CA Page 2 of 2
Lab Sample Datelrime Date Date/Time
Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID
VE-4A 10-05- 2007 -7 -B 05/25/10 Air GC 34 N/A 05/26/10 100526L01
14:30 19:56
Parameter Result RL DF Qual Parameter Result RL DF Qual
Methane ND 0.500 1 Oxygen +Argon 16.7 0.500 1
Carbon Dioxide 5.14 0.500 1 Nitrogen 78.2 0.500 1
Carbon Monoxide ND 0.500 1
VE-4B 10 -05- 2007 -8 -B 05/25/10 Air GC 34 N/A 05/26/10 100526L01
14:43 20:45
Parameter Resul RL DF Qual Parameter Resul RL DF Qual
Methane ND 0.500 1 Oxygen + Argon 16.3 0.500 1
Carbon Dioxide 5.06 0.500 1 Nitrogen 78.6 0.500 1
Carbon Monoxide ND 0.500 1
VE -5A 10-05- 2007 -9 -B 05/25/10 Air GC 34 N/A 05/26/10 100526L01
15:00 21:26
Parameter Resul RL DF Qual Parameter Result RL DF Qual
Methane ND 0.500 1 Oxygen + Argon 17.7 0.500 1
Carbon Dioxide 3.78 0.500 1 Nitrogen 78.5 0.500 1
Carbon Monoxide ND 0.500 1
VE -5B 10 -05- 2007 -10 -A 05/25/10 Air GC 34 N/A 05/26/10 100526L01
15:15 22:00
Parameter Resul RL DF Qual Parameter Result R DF Qual
Methane ND 0.500 1 Oxygen + Argon 17.5 0.500 1
Carbon Dioxide 3.98 0.500 1 Nitrogen 78.5 0.500 1
Carbon Monoxide ND 0.500 1
Method Blank 099 -03- 002 -1,058 N/A Air GC 34 N/A 05/26/10 100526L01
08:53
Parameter Result RL DF Qual Parameter Result RL DF Qual
Methane ND 0.500 1 Oxygen +Argon ND 0.500 1
Carbon Dioxide ND 0.500 1 Nitrogen ND 0.500 1
Carbon Monoxide ND 0.500 1
RL - Reporting Limit DF - Dilution Factor Qual -Qualifiers
7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL:(714) 895 -5494 FAX: (714) 894 -7501
I
Page 4 of 15
alscience S p .4,,
nvironmental Analytical Report zIC - aboratories, Inc.
Delta Environmental Consultants, Inc. Date Received: 05/26/10
911 South Primrose Avenue, Unit K Work Order No: 10 -05 -2007
Monrovia, CA 91016 -8403 Preparation: N/A
Method: EPA TO -3M
Project: 4050 Gosford Rd., Bakersfield, CA Page 1 of 2
Lab Sample Date/Time Date Date/Time
Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID
VE -1A 10 -05- 2007 -1 -A 05/25/10 Air GC 13 N/A 05/26/10 100526L01
13:00 14:30
Parameter Result RL, DF (Mi Units
TPH as Gasoline NO 1.5 1 ppm (v /v)
VE -1 B 10 -05- 2007 -2 -A 05/25/10 Air GC 13 N/A 05/26/10 100526L01
13:18 14:41
Parameter Result RL DF Qual Units
TPH as Gasoline ND 1.5 1 ppm (v /V)
VE -2A 10- 05- 2007 -3 -A 05/25/10 Air GC 13 N/A 05/26/10 100526L01
13:30 14:51
Parameter Resul RL DF Qual Units
TPH as Gasoline ND 1.5 1 ppm (v /v)
VE -213 10- 05- 2007 -4-A 05/25/10 Air GC 13 N/A 05/26/10 100526L01
13:42 15:00
Parameter Result RL DF Qual Units
TPH as Gasoline ND 1.5 1 ppm (v /v)
VE -3A 10 -05- 2007 -5 -A 05/25/10 Air GC 13 N/A 05/26/10 1005261L01
14:05 15:10
Parameter Result RL DF Qual Units
TPH as Gasoline ND 1.5 1 ppm (v /V)
VE -3B 10 -06- 2007 -6 -A 05/25110 Air GC 13 N/A 05/26/10 100526L01
14:15 15:19
Parameter Resul RL DF Qual Units
TPH as Gasoline ND 1.5 1 ppm (v/v)
RL - Reporting Limit OF - Dilution Factor Qual -Qualifiers
7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL:(714) 895 -5494 FAX: (714) 894 -7501
1
0
s
II
VE -5B
Page 5 of 15
a1science
Air GC 13 N/A 05/26/10 1005261_01
N C C o,o
15:15
nvironmental Analytical Report z
Parameter Result RL
1. aboratories, Inc.
Qual Units
TPH as Gasoline
Delta Environmental Consultants, Inc.
1
Date Received: 05/26/10
911 South Primrose Avenue, Unit K Work Order No: 10 -05 -2007
Monrovia, CA 91016 -8403 Preparation:
N/A Air GC 13 N/A
N/A
Method: EPA TO -3M
Project: 4050 Gosford Rd., Bakersfield, CA
08:41
Page 2 of 2
Lab Sample Date/Time
Parameter
Date Date/Time
DF
Client Sample Number Number Collected Matrix Instrument Prepared Analyzed QC Batch ID
1.5 1
VE -4A 10 -05- 2007 -7 -A 05/25/10 Air GC 13 N/A 05/26/10 1005261_01
14:30 15:29
Parameter Result RL DF Qual Units
TPH as Gasoline ND 1.5 1 ppm (v /v)
VE-4B 10 -05- 2007 -8 -A 05/25/10 Air GC 13 N/A 05126/10 1005261_01
7440 Lincoln Way, Garden Grove, CA 92841 -1427
14:43
FAX: (714) 894 -7501
15:38
Parameter Resul RL DF Qual Units
TPH as Gasoline ND 1.5 1 ppm (v/v)
VE -5A 10 -05- 2007 -9 -A 05/25/10 Air GC 13 N/A 05/26/10 1005261_01
15:00 15:48
Parameter Result RL DF Qual Units
TPH as Gasoline ND 1.5 1 ppm (v /v)
VE -5B 10 -05- 2007 -10 -A 05/25/10 Air GC 13 N/A 05/26/10 1005261_01
15:15 15:57
Parameter Result RL DF Qual Units
TPH as Gasoline ND 1.5 1 ppm (v /v)
Method Blank 098 -01 - 005 -2,323 N/A Air GC 13 N/A 05/26/10 100526L01
08:41
Parameter Result RL DF Qual Units
TPH as Gasoline ND 1.5 1 ppm (v /v)
RL - Reporting Limit DF - Dilution Factor Qual -Qualifiers
7440 Lincoln Way, Garden Grove, CA 92841 -1427 TEL:(714) 895 -5494 FAX: (714) 894 -7501
v
1
alscience
nvironmental
aboratories, Inc.
Analytical Report
Page 6 of 15
V
N ACC0
Delta Environmental Consultants, Inc. Date Received: 05/26/10
911 South Primrose Avenue, Unit K Work Order No: 10 -05 -2007
Monrovia, CA 91016 -8403 Preparation: N/A
Method: EPA TO -15M
Units: ug /L
Project: 4050 Gosford Rd., Bakersfield, CA Page 1 of 4
Lab Sample Date/Time Date Datelrime
nn o..a... r
Client Sample Number Number Collected 1 °'d1 "` """"'r'C"` Prepared Analyzed `« aLC.I -
VE -1A 10 -05- 2007 -1 -A 05/25/10 Air GC /MS K N/A 05/26/10 100526L01
13:00 21:01
Comment(s): -The method has been modified to use Tedlar bags instead of Summa Canisters.
The method has been modified to use Tedlar bags instead of Summa Canisters.
Parameter
Parameter
Parameter Result RL DF Qual Parameter Result R DF ual
Benzene ND 0.0016 1 Tert-Butyl Alcohol (TBA) ND 0.015 1
Toluene ND 0.019 1 Diisopropyl Ether (DIPE) ND 0.0084 1
Ethylbenzene ND 0.0022 1 Ethyl -t -Butyl Ether (ETBE) ND 0.0084 1
Xylenes (total) ND 0.0087 1 Tert- Amyl - Methyl Ether (TAME) ND 0.0084 1
Methyl -t -Butyl Ether (MTBE) 0.010 0.0072 1
Q@.1 Surrogates: REC ° Control _QM
Surrogates: REC °° Control Luau I Surrogates: REC °° Control Qual
57 -129
Limits
97 47 -137
Toluene -d8
Limit
78 -156
1,4- Bromofluorobenzene 100 57 -129 1,2- Dichloroethane -d4 95 47 -137
Toluene -d8 91 78 -156
VE -1 B 10 -05- 2007 -2 -A 05/25/10 Air GC /MS K N/A 05/26/10 100526L01
13:18 21:48
Comment(s): -The method has been modified to use Tedlar bags instead of Summa Canisters.
The method has been modified to use Tedlar bags instead of Summa Canisters.
Parameter
Parameter Result RL DF Qual Parameter Resul RL DF Qual
Benzene ND 0.0016 1 Tert-Butyl Alcohol (TBA) ND 0.015 1
Toluene ND 0.019 1 Diisopropyl Ether (DIPE) ND 0.0084 1
Ethylbenzene ND 0.0022 1 Ethyl -t -Butyl Ether (ETBE) ND 0.0084 1
Xylenes (total) ND 0.0087 1 Tert- Amyl - Methyl Ether (TAME) ND 0.0084 1
Methyl -t -Butyl Ether (MTBE) 0.0091 0.0072 1
Surrogates: REC % Control Q@.1 Surrogates: REC ° Control _QM
Limits Limits
1,4- Bromofluorobenzene 95 57 -129 1,2- Dichloroethane -d4 97 47 -137
Toluene -d8 92 78 -156
VE -2A 10 -05- 2007 -3 -A 05/25/10 Air GUMS K N/A 05/26/10 1005261-01
13:30 22:35
Comment(s): The method has been modified to use Tedlar bags instead of Summa Canisters.
Parameter Resul RL DF Qua[ Parameter
Benzene ND 0.0016 1 Tert-Butyl Alcohol (TBA)
Toluene ND 0.019 1 Diisopropyl Ether (DIPE)
Ethylbenzene ND 0.0022 1 Ethyl -t -Butyl Ether (ETBE)
Xylenes (total) ND 0.0087 1 Tert- Amyl - Methyl Ether (TAME)
Methyl -t -Butyl Ether (MTBE) 0.012 0.0072 1
Surrogates: REC ( %) Control Qual Surrogates:
Limits
1,4- Bromofluorobenzene 94 57 -129 1,2- Dichloroethane -d4
Toluene -d8 96 78 -156
RL - Reporting Limit DF - Dilution Factor Qual -Qualifiers
1
Resul RL DF Qual
ND 0.015 1
ND 0.0084 1
ND 0.0084 1
ND 0.0084 1
REC °° Control Qual
Limits
97 47 -137
7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL:(714) 895 -5494 • FAX: (714) 894 -7501
n
l I
1
alscience
nvironmental
1w aboratories, Inc.
Delta Environmental Consultants, Inc.
911 South Primrose Avenue, Unit K
Monrovia, CA 91016 -8403
Project: 4050 Gosford Rd., Bakersfield, CA
Analytical Report
Date Received:
Work Order No:
Preparation:
Method:
Units:
Page 7 of 15
ACCU9U
0
05/26/10
10 -05 -2007
N/A
EPA TO -15M
ug /L
Page 2 of 4
Lab Sample Date/Time Date Date/Time
Client Sample Number Number Collected 1°'auix mstrument Prepared Analyzed W%, DaLCH
VE-2B 10-05- 2007 -4-A 05/25110 Air GCIMS K N/A 05126110 100526L01
13:42 23:24
Comment(s): -The method has been modified to use Tedlar bags instead of Summa Canisters.
Parameter Result RL DF Qual Parameter
Benzene ND 0.0016 1 Tert-Butyl Alcohol (TBA)
Toluene ND 0.019 1 Diisopropyl Ether (DIPE)
Ethylbenzene ND 0.0022 1 Ethyl -t -Butyl Ether (ETBE)
Xylenes (total) ND 0.0087 1 Tert- Amyl - Methyl Ether (TAME)
Methyl -t -Butyl Ether (MTBE) ND 0.0072 1
0.0087
Surrogates: REC ( %) Control Qual Surrogates:
1
Control
Limits
REC ( %) Control
1,4- Bromofluorobenzene 97 57 -129 1,2- Dichloroethane -d4
Toluene -l8 91 78 -156
97 57 -129
Regu RL DF Qual
ND 0.015 1
ND 0.0084 1
ND 0.0084 1
ND 0.0084 1
REC % Control Qual
RL
Limits
97 47 -137
VE -3A 10 -05- 2007 -5 -A 05/25/10 Air GC /MS K N/A 05/27/10 1005261_01
14:05 00:14
Result RL DF Qual
ND 0.015
Comment(s): -The method has been modified to use Tedlar bags instead of Summa Canisters.
Parameter Result RL DF Qual Parameter
Benzene 0.0017 0.0016 1 Tert-Butyl Alcohol (TBA)
Toluene ND 0.019 1 Diisopropyl Ether (DIPE)
Ethylbenzene 0.0055 0.0022 1 Ethyl -t -Butyl Ether (ETBE)
Xylenes (total) 0.024 0.0087 1 Tert- Amyl - Methyl Ether (TAME)
Methyl -t -Butyl Ether (MTBE) 0.013 0.0072 1
Control
Surrogates: REC ( %) Control Qual Surrogates:
Lim'
1,4- Bromofluorobenzene 104
1,4- Bromofluorobenzene 97 57 -129
Toluene -d8
1,2- Dichloroethane -d4
Toluene -d8 89 78 -156
Result RL DF Qual
ND 0.015 1
ND 0.0084 1
ND 0.0084 1
ND 0.0084 1
REC M Control Qual
Limits
Limits
ND
98 47 -137
Ethyl -t -Butyl Ether (ETBE)
VE -3B 10 -05- 2007 -6 -A 05/25/10 Air GC /MS K N/A 05/27/10 1005261-01
14:15 01:01
RL - Reporting Limit DF - Dilution Factor Qual -Qualifiers
IW4"
Result
Comment(s): -The method has been modified to use Tedlar bags instead of Summa Canisters.
Parameter Result RL DF Qual Parameter
Benzene ND 0.0016 1 Tert -Butyl Alcohol (TBA)
ND
Toluene ND 0.019 1 Diisopropyl Ether (DIPE)
Limits
Ethylbenzene ND 0.0022 1 Ethyl -t -Butyl Ether (ETBE)
Xylenes (total) ND 0.0087 1 Tert- Amyl - Methyl Ether (TAME)
Methyl -t -Butyl Ether (MTBE) 3.3 0.12 16
Surrogates: REC °o Control Qual Surrogates:
1,4- Bromofluorobenzene 104 57 -129 1,2- Dichloroethane -d4
Toluene -d8 104 78 -156
RL - Reporting Limit DF - Dilution Factor Qual -Qualifiers
IW4"
Result RL DF Qual
ND 0.015 1
ND 0.0084 1
ND 0.0084 1
ND 0.0084 1
REC °1s) Control Q43
Limits
125 47 -137
7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL:(714) 895 -5494 • FAX: (714) 894 -7501
0
I
Page 8 of 15
L alscience XIA A r; C o,
nvironmental Analytical Report
L aboratories, Inc. -
Delta Environmental Consultants, Inc. Date Received: 05/26/10
911 South Primrose Avenue, Unit K Work Order No: 10 -05 -2007
Monrovia, CA 91016 -8403 Preparation: N/A
Method: EPA TO -15M
Units: ug /L
Project: 4050 Gosford Rd., Bakersfield, CA Page 3 of 4
Lab Sample Date/Time Date Datefrime
Client Sample Number Number Collected 11dO1x insuurncrn Prepared Analyzed QC, Bauch iv
VEDA 10 -05- 2007 -7 -A 05/25/10 Air GC /MS K N/A 05/27/10 100526L01
14:30 02:34
Comment(s): -The method has been modified to use Tedlar bags instead of Summa Canisters.
RLParameter1ResultRLDFQualParameter
0.0084
Benzene ND 0.0016 1 Tert-Butyl Alcohol (TBA)
Toluene ND 0.019 1 Diisopropyl Ether (DIPE)
0.0018
Ethylbenzene ND 0.0022 1 Ethyl -t -Butyl Ether (ETBE)
ND
Xylenes (total) ND 0.0087 1 Tert- Amyl - Methyl Ether (TAME)
0.0030
Methyl -t -Butyl Ether (MTBE) 0.0090 0.0072 1
0.0072
Surrogates: REC °° Control emu l Surrogates:
Control
Methyl -t -Butyl Ether (MTBE)
Limits
0.0072 1
Li i s
1,4- Bromofluorobenzene 100 57 -129
REC %
1,2- Dichloroethane -d4
ail
Toluene -d8 89 78 -156
Toluene -d8
Limits
Result RL DF (emu j
ND 0.015 1
ND 0.0084 1
ND 0.0084 1
ND 0.0084 1
REC M Control Qual
0.0018
ibih
1
97 47 -137
Toluene
VE -4B 10 -05- 2007 -8 -A 05/25/10 Air GC /MS K N/A 05/27/10 100526L01
14:43 03:20
Result RL DF Qual
ND 0.015 1
ND
Comment(s): -The method has been modified to use Tedlar bags instead of Summa Canisters.
0.0084
Parameter Result RL DF Qual Parameter
Benzene 0.0018 0.0016 1 Tert-Butyl Alcohol (TBA)
ND
Toluene ND 0.019 1 Diisopropyl Ether (DIPE)
ND
Ethylbenzene 0.0030 0.0022 1 Ethyl -t -Butyl Ether (ETBE)
0.0088 0.0072
Xylenes (total) ND 0.0087 1 Tert- Amyl - Methyl Ether (TAME)
Control
Methyl -t -Butyl Ether (MTBE) ND 0.0072 1
Li i s
Surrogates: REC % Control ailSurrogates:
1,2- Dichloroethane -d4
Toluene -d8
Limits
78 -156
1,4- Bromofluorobenzene 98 57 -129 1,2- Dichloroethane -d4
Toluene -d8 90 78 -156
Result RL DF Qual
ND 0.015 1
ND 0.0084 1
ND 0.0084 1
ND 0.0084 1
REC %) Control ua
0.019
Limits
Diisopropyl Ether (DIPE)
95 47 -137
ND
VE -5A 10 -05- 2007 -9 -A 05/25/10 Air GC /MS K N/A 05/27/10 100526L01
15:00 04:07
Comment(s): -The method has been modified to use Tedlar bags instead of Summa Canisters.
DF QualParameterResultRLDFQualParameter
1
Benzene ND 0.0016 1 Tert-Butyl Alcohol (TBA)
Toluene ND 0.019 1 Diisopropyl Ether (DIPE)
Ethylbenzene ND 0.0022 1 Ethyl -t -Butyl Ether (ETBE)
Xylenes (total) ND 0.0087 1 Tert- Amyl - Methyl Ether (TAME)
Methyl -t -Butyl Ether (MTBE) 0.0088 0.0072 1
Surrogates: REC % Control Qual Surrogates:
Li i s
1,4- Bromofluorobenzene 98 57 -129 1,2- Dichloroethane -d4
Toluene -d8 90 78 -156
RL - Reporting Limit DF - Dilution Factor Qual - Qualifiers
I h"
Result RL DF Qual
ND 0.015 1
ND 0.0084 1
ND 0.0084 1
ND 0.0084 1
REC ( %l Control Qual
Limi s
95 47 -137
7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL:(714) 895 -5494 • FAX: (714) 894 -7501
e
I' J
t
I
L
r
Page 9 of 15
alscience ^ C C O, oo
rw= nvironmental Analytical Report
aboratories, Inc.
Delta Environmental Consultants, Inc. Date Received: 05/26/10
911 South Primrose Avenue, Unit K Work Order No: 10 -05 -2007
Monrovia, CA 91016 -8403 Preparation: N/A
Method: EPA TO -15M
Units: ug /L
Project: 4050 Gosford Rd., Bakersfield, CA Page 4 of 4
Lab Sample Daterrime Date Date/Time
Client Sample Number Number Collected 1vIaL 1x msuurnern Prepared Analyzed %A'-. oaicn iv
VE -5B 10 -05- 2007 -10 -A 05/25/10 Air GC /MS K N/A 05/27/10 100526L01
15:15 04:55
Comment(s): -The method has been modified to use Tedlar bags instead of Summa Canisters.
RL DF
ND 0.0016 1
Parameter Resul RL DF Qua1 Parameter Re ul RL DF CQ a_I
Benzene ND 0.0016 1 Tert -Butyl Alcohol (TBA) ND 0.015 1
Toluene ND 0.019 1 Diisopropyl Ether (DIPE) ND 0.0084 1
Ethylbenzene ND 0.0022 1 Ethyl -t -Butyl Ether (ETBE) ND 0.0084 1
Xylenes (total) ND 0.0087 1 Tert - Amyl - Methyl Ether (TAME) ND 0.0084 1
Methyl -t -Butyl Ether (MTBE) ND 0.0072 1
Surrogates: REC ( %) Control Qual Surrogates: REC (%) Control Qual
Lb-lik Limits
1,4- Bromofluorobenzene 98 57 -129 1,2- Dichloroethane -l4 97 47 -137
Toluene -d8 91 78 -156
Method Blank 099 -12- 983 -729 N/A Air GC /MS K N/A 05/26/10 100526L01
14:06
Parameter
Benzene
Toluene
Ethylbenzene
Xylenes (total)
Methyl -t -Butyl Ether (MTBE)
Surrogates:
1,4- Bromofluorobenzene
Toluene -d8
Result RL DF
ND 0.0016 1
ND 0.019 1
ND 0.0022 1
ND 0.0087 1
ND 0.0072 1
REC ( %) Control Qual
1
Limits
97 57 -129
103 78 -156
Qual Paramete
Tert -Butyl Alcohol (TBA)
Diisopropyl Ether (DIPE)
Ethyl -t -Butyl Ether (ETBE)
Tert - Amyl - Methyl Ether (TAME)
Surrogates:
1,2 -Dichloroethane -d4
1
RL - Reporting Limit DF - Dilution Factor Qual -Qualifiers
I Ww.,m
Result RL DF Qual
ND 0.015 1
ND 0.0084 1
ND 0.0084 1
ND 0.0084 1
REC ( %) Control Qual
Limits
98 47 -137
7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL:(714) 895 -5494 • FAX: (714) 894 -7501
0
t
Lalscience
nvironmental
aboratories, Inc.
Delta Environmental Consultants, Inc.
911 South Primrose Avenue, Unit K
Monrovia, CA 91016 -8403
Quality Control - Duplicate
Project: 4050 Gosford Rd., Bakersfield, CA
Page 10 of 15
t ACCpf
4<J cJf
Date Received: 05/26/10
Work Order No: 10 -05 -2007
Preparation: N/A
Method: EPA TO -3M
RPD - Relative Percent Difference , CL - Control Limit
7440 Lincoln Way, Garden Grove, CA 92841 -1427 . TEL:(714) 895 -5494 . FAX: (714) 894 -7501
Date Date Duplicate Batch
Quality Control Sample ID Matrix Instrument Prepared: Analyzed: Number
10 -05- 2003 -12 Air GC 13 N/A 05/26/10 100526D01
Parameter Sample Conc DUP Conc RPD RPD CL Qualifiers
TPH as Gasoline 34 35 2 0 -20
RPD - Relative Percent Difference , CL - Control Limit
7440 Lincoln Way, Garden Grove, CA 92841 -1427 . TEL:(714) 895 -5494 . FAX: (714) 894 -7501
1
1
1
Page 11 of 15
alscience to a 9J
X41
nvironmental Quality Control - LCS /LCS Duplicate ,\ '
1 1Aaboratories, Inc.
Delta Environmental Consultants, Inc. Date Received: N/A
911 South Primrose Avenue, Unit K Work Order No: 10 -05 -2007
Monrovia, CA 91016 -8403 Preparation: N/A
Method: ASTM D -1946
Project: 4050 Gosford Rd., Bakersfield, CA
Date Date LCS /LCSD Batch
Quality Control Sample ID Matrix Instrument Prepared Analyzed Number
099 -03- 002 -11058 Air GC 34 N/A 05/26/10 100526L01
Parameter LCS %REC LCSD %REC %REC CL RPD RPD CL Qualifiers
Carbon Dioxide 99 98 80 -120 1 0 -30
Oxygen + Argon 103 102 80 -120 0 0 -30
Nitrogen 105 105 80 -120 0 0 -30
RPD - Relative Percent Difference , CL - Control Limit
7440 Lincoln Way, Garden Grove, CA 92841 -1427 . TEL:(714) 895 -5494 . FAX: (714) 894 -7501
L
1
A
I
Page 12 of 15
J;L!Iscience
nvironmental Quality Control - LCS /LCS Duplicate
aboratories, Inc.
Delta Environmental Consultants, Inc. Date Received: N/A
911 South Primrose Avenue, Unit K Work Order No: 10 -05 -2007
Monrovia, CA 91016 -8403 Preparation: N/A
Method: EPA TO -15M
Project: 4050 Gosford Rd., Bakersfield, CA
Date Date LCS /LCSD Batch
Quality Control Sample ID Matrix Instrument Prepared Analyzed Number
099 -12- 983 -729 Air GUMS K N/A 05/26/10 100526L01
Parameter LCS %REC LCSD %REC REC CL RPD RPD CL Qualifiers
Benzene 86 107 60 -156 22 0-40
Toluene 86 105 56 -146 20 0-43
Ethylbenzene 88 109 52 -154 20 0 -38
p /m- Xylene 88 107 42 -156 19 0-41
o-Xylene 90 107 52 -148 18 0 -38
RPD - Relative Percent Difference , CL - Control Limit
7440 Lincoln Way, Garden Grove, CA 92841 -1427 . TEL:(714) 895 -5494 . FAX: (714) 894 -7501
Ll
I
1
1
Page 13 of 15
alscience o
A C o,
A. nvironmental jGlossaryofTermsandQualifiers
Al. aboratories, Inc.
Work Order Number: 10 -05 -2007
Qualifier Definition
See applicable analysis comment.
Less than the indicated value.
Greater than the indicated value.
1 Surrogate compound recovery was out of control due to a required sample dilution,
therefore, the sample data was reported without further clarification.
2 Surrogate compound recovery was out of control due to matrix interference. The
associated method blank surrogate spike compound was in control and, therefore, the
sample data was reported without further clarification.
3 Recovery of the Matrix Spike (MS) or Matrix Spike Duplicate (MSD) compound was out of
control due to matrix interference. The associated LCS and /or LCSD was in control and,
therefore, the sample data was reported without further clarification.
4 The MS /MSD RPD was out of control due to matrix interference. The LCS /LCSD RPD
was in control and, therefore, the sample data was reported without further clarification.
5 The PDS /PDSD or PES /PESD associated with this batch of samples was out of control
due to a matrix interference effect. The associated batch LCS /LCSD was in control and,
hence, the associated sample data was reported without further clarification.
B Analyte was present in the associated method blank.
E Concentration exceeds the calibration range.
J Analyte was detected at a concentration below the reporting limit and above the
laboratory method detection limit. Reported value is estimated.
ME LCS Recovery Percentage is within LCS ME Control Limit range.
ND Parameter not detected at the indicated reporting limit.
Q Spike recovery and RPD control limits do not apply resulting from the parameter
concentration in the sample exceeding the spike concentration by a factor of four or
greater.
X % Recovery and /or RPD out -of- range.
Z Analyte presence was not confirmed by second column or GC /MS analysis.
Solid - Unless otherwise indicated, solid sample data is reported on a wet weight basis,
not corrected for % moisture.
1
I" 7440 Lincoln Way, Garden Grove, CA 92841 -1427 • TEL:(714) 895 -5494 FAX: (714) 894 -7501
I
d
I
11
I
I
I
I
I
I
I
1,
ri
I
M M = = M = = = = M M M M M M M =
LAB (LOCATION) Shell Oil Products Chain Of Custody Record
GI
0O4Ea1FNOM0DENT#APK1ESp[pr ................ OSPL
MOTIVA RETAPM
XENOD Phil Gilchrist 91 71 31 31 71 21616 DATE. 0
MOTIVA M&CM coNsuLTANT
TEST AK3WA (a&AQffftmLa)
SiELL ------------ ................. ...................... ..............................
PAGE: of
On-RR ( Fci-- I I I I I I I F I I I 1 11 21 11 21 21 41
Delta Consultants 4050 Gosford Road, Bakersfield CA
ADCRES& EDFDEUVERABLETO Mm. Cart{rry. Olga Loaadw4: 40
911 S. Primrose Ave., Monrovia CA
Joyce Gavin, Lia Cotero Z626.256.6662 lcDtero0Mta8rw.GOm
ISCA4050ZrIzDT
PROX-Cr ACr (Hwd MFReWt*
Phil Gilchrist, William Lanz SA&MZR KAMEM M*C
4L it
TELEPHOt:E FAX:
Danrnnsttmaenaenv.com
626.256.6662 626.256.6263 YAant7 Mm
TURNAROUNDTIME (CALENDAR DAYS): RESULTS NB3)ED
STANDARD (14 DAY) [15 DAYS F-1 3 DAYS 2DAYS 24 HOURS REQUESTED ANALYSISONWEEKEND
LA - RWQCB REPORT FORMAT USTAGENCY: IWO
93
TEMPERATURE ON RECEIPT G*
SHELLcONTRAcTRATE AmiEs
SPECIAL INSTRUCTIONS OR NOTES: 0 STATE REIMBURSEMENT RATE APPLIES F-
Please provide reportin ppb and ug/L EDD NOT NEEDED
REa3pr vmmwioN REQUESTED
C1110
U=
SAMPLING PRESERVAIRVE
Field Sample Identification NO. OF AL LU 0, M C4
C4
U
C40 ZoCM 6r 6C M OLI- LL ConWner PID R*adnqs
DATE n1E T ONE JOTHER CoMr. Uj
M 9 6 or Laboratory Notes
3 MS.
OL a. LU
VE-1A Vapor 2 X X X ASTM IM foroxygen
VE-11B l a :ls Vapor 2 X X X nitrogen, methane
VE.2A 13: 16 Va rpo 2 X X X carbon dioxide, and
1, Ll VE - 2B l Vapor 2 X X X carbon monoxide
VE-3A Vapor 1 2 X X X
VF-3B Va. 2 XX X X
VE-4A Jq: 16 Vapor 2 X X X
X X XVE-4B Vapor 2
VE-5A 2 X X X
N'
Vapor
X X XVE-5B JS_-L; Vm r A
Es-r-
R80*W trf. t5pem) Data tuna
M5L
R-d by. (SWb-) Dabs TLBa
0
05QJO5R..W.
Cn
m = m = m m m = = ® ® 0 = m m
CLIENT: I )
Page 15 of 15
WORK ORDER #: 10-05-0 D 0
IN Cooler 0 of Co
DATE: 05 10
TEMPERATURE: Thermometer ID: SCI (Criteria: 0.0 °C — 6.0 °C, not frozen)
Temperature OC + 0.5 °C (CF) _ OC Blank Sample
Sample(s) outside temperature criteria (PM /APM contacted by: ).
Sample(s) outside temperature criteria but received on ice /chilled on same day of sampling.
Received at ambient temperature, placed on ice for transport by Courier.
Ambient Temperature: Air Filter Metals Only PCBs Only Initial:
CUSTODY SEALS INTACT:
Cooler No (Not Intact) Not Present N/A Initial:j_
Sample No (Not Intact) PrNot Present Initial:
SAMPLE CONDITION: Yes No N/A
Chain -Of- Custody (COC) document(s) received with samples ...................
COC document(s) received complete .................... ............................... e
Collection date /time, matrix, and /or # of containers logged in based on sample labels.
No analysis requested. Not relinquished. No date /time relinquished.
Sampler's name indicated on COC ...................... ............................... 53'
Sample container label(s) consistent with COC ...... ............................... Z
Sample container(s) intact and good condition ....... ............................... 21,
Proper containers and sufficient volume for analyses requested ............... 0'
Analyses received within holding time .................. ...............................
E511,
pH / Residual Chlorine / Dissolved Sulfide received within 24 hours........... d
Proper preservation noted on COC or sample container ..........................
Unpreserved vials received for Volatiles analysis
Volatile analysis container(s) free of headspace ...... ............................... 0'
Tedlar bag(s) free of condensation ....................... ............................... 0'
CONTAINER TYPE:
Solid: 4oZCGJ 08ozCGJ 016ozCGJ Sleeve ( ) EnCoreso TerraCorese
Water: VOA VOAh 0VOAna2 0125AGB 125AGBh 125AGBp 01AGB 01AGBna2 1AGBs
0500AGB 500AGJ 11500AGJs 0250AGB 0250CGB 0250CGBs 01PB 500PB 0500PBna
0250PB 11250PBn 125PB 0125PBznna 0100PJ 0100PJna2
Air: VTedlare Summa® Other: Trip Blank Lot#: Labeled /Checked by: h
Container: C: Clear A: Amber P: Plastic O: Glass J: Jar B: Bottle Z: Zip] oc/Resealable Bag E: Envelope Reviewed by:
Preservative: h: HCL n: HNO3 na2:Na2S203 na: NaOH p: H3PO4 s: H2SO4 znna: ZnAc2 +NaOH f: Reid- filtered Scanned by: h`
SOP T100 090 (05/10/10)
I
I
I
I
d
I
I
I
I
I
I
I
I
I
I
I
I
I
I
1
I
1
e
t
IAppendix D — Vapor Well Boring logs and Well Construction Diagrams
1
a
a
0
e
I
BORING LOG
Drill Rig: CME-85 Date Drilled: 9/25/03 Logged By:
Boring Dia: 10 Inches Boring Number: VEW-1 Ryan Nunneley
CL Blow
Counts Completion
Depth
Feet Lithology Description
5
Concrete
Silty Sand (SM) - grayish brown, very fine-fine grained sand,
poorly graded, moderately micaceous, moist, no odor, 0 ppm
Silt (ML) - dark brown, nonplastic, slightly clayey, slightly
4-5-6 10 micaceous, moist, no odor, 0 ppm
Sandy Silt (ML) - medium brown, nonplastic, very fine
6-7-9 15 grained sand, very micaceous, very moist slight odor, 163
PPM
Sand (SP) - light brownish gray, very fine-fine grained sand,
7-9-14 20 poorly graded, slightly silty, moist, strong odor, 620 ppm
19-36-41 25
Silty Sand (§M) - medium brown, very fine grained sand ,
poorly graded, nonplastic, moist, moderate odor, 196 ppm
16-21-28 30
Sand (SP) - light brown, very fine grained sand, poorly
graded, slightly micaceous, damp, strong odor, 1780 ppm
Sand (SP) - light grayish brown, very fine-fine grained sand,
19-23-24 35 poorly graded, very micaceous, damp, strong odor, 1643
ppm
18-31-34 40 -j
Sand (SP) - light reddish brown, very fine grained sand,
poorly graded, very micaceous, damp, strong odor, 1442
PPM
22-38-42 45
Sand (SW) -right brownish gray, fine-coarse grained sand,
well graded, very micaceous, moist moderate odor, 164 ppm
Sandy Clay (CL) - reddish gray, medium plasticity, fine
19-22-28 50 grained veryand, moderately micaceous, ve moist no odor, 0
ppm
24-2848 55
Sand (SW) - light brown, fine-coarse grained sand, well
graded, very micaceous, damp, no odor, 0 ppm
X
60
65
Completion Notes: Site:
VEW-1 is nested with two 2" wells. VEW-1A is screened with 20 feet of schedule 40 PVC, 0.020"
slotted screen from 10 feet to 30 feet below grade. 10 feet to surface is blank schedule 40 PVC. Texaco Service Station
VEW-1 B is screened with 15 feet of schedule 40 PVC, 0.020" slotted screen from 40 feet to 55 feet
below grade. 40 feet to surface is blank schedule 40 PVC. Annular spaced backfilled with sand 4050 Gosford Road
from total depth to 37 feet bentonite seal placed from 37 feet to 33 feet, annular space backfifled
with sand from 33 feet to 8 feet bentonite sea[ placed from 8 feet to 1 foot below grade, 12 -inch Bakersfield, CA 93309
diameter well box set in concrete from 1 foot to surface.
Project No.: 423.EQL.00 Page 1
Ji
A
v
a
t
e
I
r ipp,
u t y=XV.7—
BORING LOG
Drill Rig: CME -85 Date Drilled: 9/24/03 Logged By:
Ryan NunneleyBoringDia: 10 Inches Boring Number: VEW -2
m
Blow
Counts
Completion Depth
Feet Lithology Description
2-4 -5
6-6-10
12 -29 -32
19 -31 -50
18 -34 -38
19-30 -38
24 -32-48
22 -31 -34
13 -25 -32
26 -32-41
26 -33 -50
5
10
15
20
25
30
35
40
45
50
55
60
65
Concrete
Sand (SP) - grayish brown, very fine -fine grained sand,
poorly graded, slightly silty, very micaceous, moist, slight
odor, 25 ppm
Sandy Clay (CL) - dark brown, medium plasticity, very fine
grained sand, very micaceous, very moist, slight odor, 136
ppm
Clayey Sand (SC) medium brown, very fine grained sand,
poorly graded, nonplastic, slightly micaceous, moist, strong
odor, 773 ppm
Sand (SP) - light grayish brown, very fine grianed sand,
poorly graded, slightly silty, very micaceous, moist, strong
992 ppm
Sandy Silt (ML) -- light grayish brawn, nonplastic, very fine
grained sand, moderately micaceous, moist, strong odor, 904
ppm _
Sand (SP) -light brown, very fine grained, poorly graded
very micaceous, damp, strong odor, 705 ppm
Sand (SP) - light grayish brown, very fine- medium grained
sand, poorly graded, trace gravel to 1/4 ", very micaceous,
damp, moderate odor, 359 ppm
Sand (SP) - reddish brown, very fine grained sand, poorly
graded, moderately micaceous, damp, strong odor, 676 ppm
Sand (SW) -- light gray, very fine - medium grained sand, well
graded, very micaceous, damp, slight odor, 185 ppm
Sandy Silt (ML) - grayish brown, nonplastic, fine grained
sand, moderately micaceous, moist, slight odor, 67 ppm
Sand (SW -light brownish gray, very fine coarse grained
sand, well graded, very micaceous, moist, no odor, 0 ppm
9 °
0:': °:° : °D:.:
ppm
Completion Notes:
VEW -2 is nested with two 2" wells. VEW -2A is screened with 25 feet of schedule 40 PVC, 0.020"
slotted screen from 5 feet to 30 feet below grade. 5 feet to surface is blank schedule 40 PVC.
VEW -2B is screened with 20 feet of schedule 40 PVC, 0.020" slotted screen from 40 feet to 60 feet
below grade. 40 feet to surface is blank schedule 40 PVC. Annular spaced backflled with sand
from total depth to 37 feet, bentonite seal placed from 37 feet to 33 feet, annular space backfilled
with sand from 33 feet to 3 feet, bentonite seal placed from 3 feet to 1 foot below grade, 12 -inch
diameter well box set in concrete from 1 foot to surface.
Site:
L+ Texaco Service Station
4050 Gosford Road
Bakersfield, CA 93309
Project No.: 423. EQL.00 Page 1
1
v
v
a
e
di
BORING LOG
q,_ _ C
1.'t'
7
1r C
Drill Rig: CME -85 Date Drilled: 9/24/03 Logged By:
Boring Dia: 10 Inches Boring Number: VEW -3 Ryan Nunneley
M
Blow
Counts
Completion
Depth
Feet Lithology Description
Concrete
Sand (SP) - light brown, very fine grained sand, poorly
graded, very micaceous, moist, no odor, 0 ppm
5
Sandy Clay (CL) - dark brown, low plasticity, very fine grained
4 -6 -12 10 sand, slightly micaceous, moist, moderate odor, 372 ppm
Sand (SP) - medium brown, very fine grained sand, poorly
10-15-22 15 graded, slightly clayey, slightly micaceous, moist, strong
odor, 2156 ppm
16 -26 -29 20
Silty Sand (SM) - brownish gray, very fine -fine sand, poorly
graded, nonplastic, very moist, strong odor, 732 ppm
P 9.: 9:: p:: 9:: 9:
43 -50 25
Silty Sand (SM) - lignt grayish brawn, very fine grained sand,
poorly graded, nonplastic, moist, strong odor, 4000+ ppmQ:: 9:9 P 9:q fQ 9
Sand (SP) -light gray, very fine -fine grained sand, poorly
27 -36-42 30 graded, very micaceous, damp, strong odor, 582 ppm
16-23-38 35
Sand (SP) - light gray, very fine -fine grained sand, poorly
graded, very micaceous, damp, strong odor, 4000+ ppm
20 -30 -37
21 -21 -23
2I -32 -38
40
45
50
Clayey Sand SC medium brown, very fine rained sand,
poorly graded, nonplastic, very micaceous, moist, strong
odor, 1640 ppm
Sand (SW) - light brown, fine- coarse grained sand, well
radeyery micaceous, damp, no odor 0 p m
Sandy Silt (ML) - m mediu gray, nonplastic, very fine grained
sand, slightly clayey, very micaceous, very moist, no odor, 0 /
Clayey Sand (SC) - mediumbrown, very fine -fine grained
sand, poorly graded, nonplastic, very micaceous, very moist,
no odor_0 ppm
P' 9 •"
q... :... ....
90- .9: °-0 .9: °A: °.
55
60
65
Completion Notes: Site:
VEW -3 is nested with two 2" wells. VEW -3A is screened with 20 feet of schedule 40 PVC, 0.020'
slotted screen from 5 feet to. 25 feet below grade. 5 feet to surface is blank schedule 40 PVC. Texaco Service Station
VEW =38 is screened with 15 feet of schedule 40 PVC, 0.020" slotted screen from 35 feet to 50 feet
below grade. 35 feet to surface is blank schedule 40 PVC. Annular spaced backfilled with sand 4050 Gosford Road
from total depth to 32 feet, bentonite seal placed from 32 feet to 28 feet, annular spade backfilled
with sand from 28 feet to 3 feet, bentonile seal placed from 3 feet to 1 foot below grade, 12 -Inch Bakersfield, CA 93309
diameter well box set in concrete from 1 foot to surface.
Project No.: 423.EQL.00 Page 1
1
I
t
a
A
e
J
t f)
BORING LOG
3xat3zrtt yn w Drill Rig: CME -85 Date Drilled: 9/23/03 Logged By:
Boring Dia: 10 Inches Boring Number: VEW-4 Ryan Nunneley
E
CU
U)
Blow
Counts
Completion
ehDnet
Lithology Description
Concrete
Sand (SP) - medium brown, very fine grained sand, poorly
graded, slightly silty, very micaceous, moist, no odor, 0 ppm
5
Silty Clay (CL) - dark brown, low plasticity, very micaceous,
4-5 -12 10 moist, no odor, 0 ppm
Sandy Silt (ML) - brownish gray, nonplastic, very fine grained
6 -10-14 15 sand, moist, moderate odor, 624 ppm
9 -12 -16 20
Silty Sand (SM) - grayish brown, very fire -fine grained sand,
poorly graded, nonplastic, slightly micaceous, moist, strong
odor, 534 ppm
9a Q:9 9c 9Q °
Sand (SP) - light brownish gray, very fine -fine grained sand,
12 -18-22 25 poorly graded, very micaceous, moist, moderate odor, 576
ppm
Sand (SP) - light gray, very fine grained sand, poorly graded,
15 -20-26 30 moderately micaceous, damp, strong odor, 1124 ppm
Sand (SP) - light gray, very fine- medium grained sand, poorly
21 -24-39 35 graded, very micaceous, damp, strong odor, 4000+ ppm
23-24-24 40
Sand (SP) - light brown, very fine -fine grained sand, poorly
graded, very micaceous, damping odor,_1081 ppm
Clay (CH) - brownish gray, high plasticity, moderately
micaceous, moist, no odor, 0 ppm
20 -20-22
17 -22 -29
45
50
P ." .9" P -0' • -0' •
P:V P: "a .9 Aa Clayey Sand (SC) - brownish gray, very fine -fine grained
sand, poorly graded,. nonplastic, very micaceous, very moist,
moderate odor, 244 ppm
Clayey Sand (SC) - dark gray, very fine -fine grained sand,
poorly graded, nonplastic, very micaceous, very moist, no
odor, 0 ppm
P
P' P'
Sand (SP) -Tight grayish brown, very fine-fine grained sand,
22 -50 55 poorly graded, slightly clayey, very micaceous, very moist, no
odor, 0 ppm —
23-50 60
Sand (SW) - light gray, fine - coarse grained sand, well
graded, trace gravel to 1/2 ", damp, no odor, 0 ppm
26 -32 -32 65
Completion Notes: Site:
VEW-4 Is nested with two 2" wells. VEW-4A is screened with 20 feet of schedule 40 PVC, 0.020"
slotted screen from 10 feet to 30 feet below grade. 10 feet to surface is blank schedule 40 PVC. Texaco Service Station
VEW-4B is screened with 25 feet of schedule 40 PVC, 0.020" slotted screen from 40 feet to 65 feet
below grade. 40 feet to surface is blank schedule 40 PVC. Annular spaced backfilled with sand 4050 Gosford Road
from total depth to 37 feet, bentonite seal placed from 37 feet to 33 feet, annular space backfilled
with sand from 33 feet to 6 feet, bentonite seal placed from B feetto 1 foot below grade, 12 -inch Bakersfield, CA 93309
diameter well box set in concrete from 1 foot to surface.
Project No.: 423.EQL.00 Page 1
v
a
a
s
s
1
a
v
v
fli
t
e
u
u
7 7
BORING LOG
Drill Rig: CME -85 Date Drilled: 9/23/03 Logged By:
Boring Dia: 10 Inches Boring Number. VEW -5 Ryan Nunneley
CL
E
M
Blow
Counts
Completion
Depth
Feet Lithology Description
Concrete
Sand (SP) - grayish brown, very fine -fine grained sand,
poorly graded, slightly silty, very micaceous, damp, slight
5 odor, 56 ppm
Silty Clay (CL)'- medium brown, tow plasticity, slightly
7-15-17 10 micaceous, mosit, slight odor, 82 ppm
Sandy Silt (ML) - medium brown, nonplasbc, very fine
6-9 -12 15 grained sand, slightly micaceous, very moist, strong odor,
3405 ppm
10 -10 -17 20
Silty Sand (SM) - light grayish brown, nonplashc, very '
fine-fine grained sand, slightly micaceous, moist, strong odor,
4000+ ppm
Sandy Silt (ML) -- light grayish brown, fine grained sand,
6P::
P :: 9 :
15 -19-35 25 slightly micaceous, very moist, strong odor, 3081 ppm
Sand (SP) - light brownish gray, very fine -fine grained sand,
poorly graded, very micaceous, damp, strong odor, 4000+
22 -30 -34 30
PPM
Sand (SP) - light brownish gray, very fine -fine grained sand,
26 -36-41 35 poorly graded, very micaceous, damp, strong odor, 2391
PPM
Sand (SP) - light grayish brown, very find grained sand,
24 -28-35 40 poorly graded, very micaceous, very moist, strong odor, 1378
PPM
19 -21 -24
16 -27 -38
45
Y.
50
Sandy Clay (CH) - grayish brown, high plasticity, fne- medlsm
grained sand, very micaceous, very moist, slight odor, 47
PPM
Sand (SP) - grayish brown, very fine -fine grained sand,
poorly graded, slightly clayey, very micaceous, moist, no
40 -45 -50 55
odor, 0 ppm
Sand (SW) - light gray, very fine- medium grained sand, well
graded, very micaceous, damp, no odor, 0 ppm
Sand (SW) - light gray, fine - coarse grained sand, well
23 -38-43 60
y... .. •' •o
graded, moderate gravel to 1/3 ", very micaceous, damp, no
odor, 0 ppm
16 -11 -15
P
q.: 65 P
Silty Sand (SM) - medium gray,, nenplastic, very fine grained
sand, very micaceous, very moist, no odor, 0 ppm
9
o :Q
d y. 9
a
Completion Notes: Site:
VFW -5 is nested with two 2" wells. VEW -5A is screened with 25 feet of schedule 40 PVC, 0.020"
slotted screen from 5 feet to 30 feet below grade. 5 feet to surface is blank schedule 40 PVC. Texaco Service Station
VFW -5B is screened with 25 feet ofschedule 40 PVC, 0.020" slotted screen from 40 feet to 65 feet
below grade. 40 feet to surface is blank schedule 40 PVC.. Annular spaced backfilled with sand 4050 Gosford Road
from total depth to 37 feet, bentonite seal placed from 37 feet to 33 feet, annular space backflled
with sand from 33 feet to 3 feet, bentonite seal placed from 3 feet to 1 foot below grade, 12 -inch Bakersfield, CA 93309
diameter well box set in concrete from 1 foot to surface.
Project No.: 423.EQL.00 Page 1
s
0
0
a
1 '