HomeMy WebLinkAboutMITIGATION
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ARca I?rodll.lc~s Company
IEnvironmentBlI Health /I, Saiety
4 Centerpointe Drive
La Palma, Cali10miBl 90623-1066
LJG~
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Mailing Address: Bo ( 6038
Artesia, Cali10mia 90702-6038
November 19, 1998
Bakersfield Fire Dept.
Haz.Mat. Division
1715 Chester Ave.
Bakersfield, Ca. 93301
Attn: Mr. Howard Wines
1D'1M,r-¡ 7,-:-, 'II" .
.1.L'U.'-!.;r",','~" \T¡L7'D' ,
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NOV 2 4 1998
Re: Contaminated Soil found: Arco SS# 5365, 4010 Wible Rd/
White Lane~ Bakersfield, Ca.
Dear Howard:
Confirming our telephone conversation of last week, this letter is submitted
per your request.
During construction of a new canopy at the subject site, Kern Construction
found contaminated soil during the digging of at least one new footing. The
contamination is believed to have been associated with a much earlier
release for which the site was remediated and received environmental
closure in August 1994. In this regard, attached is a IITPHG Soil Sample
Map" dated 12/93 indicating the sample locations and the hydrocarbon
level.
I have been advised by our remediation department that SECOR International
has performed air monitoring and collected samples for the generated soil
stockpiles and a full and detailed report has been submitted directly to you
under separate cover.
If you have any questions please direct them to our Environmental Projects
Engineer, Mr. Darrell Fah (714)839-9531.
pliance
encl.
cc: D. Fah
AReo Products Company is a Division of AtlanticRichfieldCompany
APC·7116
(10/96)
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ODD TECHNOLOGY
o FEET 40
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CLIENT: FILE: PROJECT NO.: PM PE/RG
ARCO PRODUCTS CO. C:\ARCO\ 5365\ SM 022504676
ARCO FACILITY NO. 5365 REV.
LOCATION: 1 FIGURE:
WIBLE ROAD AND WHITE LANE DES. 3
BAKERSFIELD, CALIFORNIA SAB 12/93
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SECOR
International Incorporated
November 17, 1998
RECErVjE;D
NOli 2 a 1998
! ß'\T.
j -7_~,~,~
Mr. Howard H. Wines III
Hazardous Materials Specialist
Bakersfield Fire Department
Office of Environmental Services
1715 Chester Avenue
Bakersfield, California 93301
RE: SOIL STOCKPILE SAMPLE ANALYTICAL RESULTS
ARCO Service Station No. 5365
4010 Wible Road
Bakersfield, California
Dear Mr. Wines:
SECOR International Incorporated (SECOR), on behalf of ARCO Products Company (ARCO), is
pleased to present this letter report detailing the results of soil stockpile sampling at the above
referenced site (Figure 1). SECOR performed air monitoring during excavation for new canopy
footings and collected soil samples from the generated soil stockpiles.
On November 4, 1998, Kern Construction excavated six new canopy footings in the area of the
dispenser islands (Figure 2). The footings were excavated to a total depth of approximately 10 feet
below ground surface (bgs), and had surface dimensions of 4 feet by 4 feet in diameter. SECOR
performed air monitoring during the excavation using a Heath-Tech Flame Ionization Detector.
Elevated concentrations of volatile organic compounds (VOCs) were detected during the excavation
of the second canopy footing (Footing 2). Concentrations of VOCs measured during the excavation
of the remaining five canopy footings (Footings 1,3,4,5, and 6) were either non-detectable or below
50 parts per million by volume (ppmv). Soil excavated from Hole 2 was stockpiled separately for
sampling and analytical characterization. Air monitoring logs are included in Attachment A,
SECOR collected five stockpile samples (SP-l through SP-5) from the generated soil stockpiles.
Soil samples were submitted to State-certified Del Mar Analytical of Van Nuys, California for
analyses of total petroleum hydrocarbons characterized as gas (TPHg), benzene, toluene,
ethylbenzene, and total xylenes (BTEX), and methyl-tertiary-butyl ether (MTBE) by EPA Methods
8015M and 8020M, respectively. Varying concentrations of total petroleum hydrocarbons as
gasoline (TPHg) were detected in each of the five samples. The highest concentration, 4,200
milligrams per kilogram (mg/kg), was detected in sample SP-l which originated from the second
canopy footing (Footing 2). Lower concentrations of TPHg (1.8 to 250 mg/kg) were detected in the
remaining four samples (SP-2 through SP-5). A low concentration of benzene (0.41 mg/kg) was
detected in only of the five samples (SP-3). MTBE was not detected above laboratory reporting
limits in any of the five samples. Analytical results are presented in Table 1. The laboratory
analytical report and chain-of custody are included in Attachment B.
L4749
SECOR
290 Conejo Ridge Ave" Suite 200, Thousand Oaks, CA 91361 (805) 230-1266 (805) 230-1277 Fax www,secor,com
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Mr. Howard H. Wines III
ARCO Station No. 5365
November 17, 1998
Page 2
The presence of petroleum hydrocarbon constituents was previously documented at the site during
removal and replacement of the underground storage tanks (USTs), dispensers, and product piping
in August 1993 (GTI, 1994). Elevated concentrations of TPHg were identified beneath dispensers at
the middle and southern dispenser islands (Figure 3). A maximum TPHg concentration of 9,900
mg/kg was reported at the eastern end of the middle dispenser island, which correlates with elevated
hydrocarbons identified during the excavation of the second canopy footing (Footing 2).
On July 30, 1993, GTI completed three soil borings (B-1 through B-3) adjacent to the USTs to a
depth of 25 feet bgs (Figure 4). No detectable concentrations of TPHg or benzene were identified in
any of the soil samples.
On May 19, 1994, GTI completed three angle borings (B-4 through B-6) to a depth of 45 linear feet
beneath the middle and southern dispenser islands (Figure 4). Petroleum hydrocarbons were
identified in only one sample beneath the western end of the southern dispenser island at 8 feet bgs
(B6-8). Historical analytical results are presented in Attachment C.
SUMMARY/CONCLUSIONS
· No detectable concentrations of MTBE were reported for any of the five stockpile samples, and
benzene was detected in only one soil stockpile sample (SP-3) at low concentrations, This
suggests that hydrocarbons identified in the soil stockpiles generated from the canopy footing
excavation are not from recent leaking/spillage, but related to prior and documented
hydrocarbon impacted soil identified at the site;
· As indicated from stockpile sampling and FID readings, the highest concentration of TPHg was
associated with soil generated from the second canopy footing (Footing 2), which is consistent
with elevated TPHg concentrations identified at the eastern end of the middle dispenser island
during the upgrade of the dispensers and USTs in August 1993;
· Previous site assessments by GTI delineated the lateral and vertical extent of hydrocarbons in
soil adjacent to the dispenser islands and USTs;
· Groundwater is located at approximately 100 feet below the site; and
· All possible source areas (USTs, dispensers, and product lines) were removed and replaced in
August 1993.
In summary, hydrocarbons identified in soil samples collected from the canopy footing excavation
stockpiles are most likely related to those previously identified beneath the dispenser islands during
the UST removal and replacement in August 1993. Based on the findings above, SECOR believes
that no further action is warranted, and that the site should maintain closure status.
L4749
SECOR
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Mr. Howard H. Wines III
ARCO Station No. 5365
November 17, 1998
Page 3
If you have any questions about this project or require additional information, please do not hesitate to
contact either Gareth Roberts or John Bollier, R.G. at (805) 230-1266.
Sincerely,
~ ~L R.G. #4856
Senior Geologist
SECOR International Incorporated
GJ;;3.~
Sr. Staff Geologist
Enclosure: Figure 1 - Site Location Map
Figure 2- Site Map Showing Canopy Footing Excavation and Stockpile Locations
Figure 3 - Site Map Showing UST and Dispenser Sample Locations
Figure 4 - Site Map Showing Historical Soil Boring Locations
Table 1 - Soil Stockpile Analytical Results
Attaclunent A - Air Monitoring Logs
Attaclunent B - Laboratory Analytical Report and Chain-of Custody
Attaclunent C - Historical Analytical Results
cc: Mr. Darrell Fah - ARCa
L4749 SECOR
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REV.
ARCO PRODUCTS COMPANY
AReO f'ACILITY NO. 5365
LOCATION:
WIBLE ROAD & WHITE LANE
BAKERSFIELD, CALIFORNIA
, 8/93
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CLIENT: rilE: PROJECf NO.: PM PE/RG
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ARCO F' ACILlTY NO. 5365 REV.
lOCATION: 1 F'IGURE:
I WIBLE ROAD AND WHITE: LANE OES, DATE! 2
BAKERSFIELD, CALIFORNIA SAB
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/SOIL SAMPLE NUMBER
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4.~CQ_ TPHG (MG/KG)
"APPROXIMATE SAMPLE: LOCATION
. (DIE) DETECTED HTDROCARBONS DO NOT MATCH THE GASOUNE STANDARD
19P~GROUNDWATER
ODD TECHNOLOGY
CUENT:
ARCO PRODUCTS CO.
ARCO F' ACILlTY NO. 5365
LOCA TION:
WIBLE ROAD AND WHITE LANE
BAKERSFIELD, CALIFORNIA
o
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FEET 40
SCALE
FILE:
C:\ARCO\5365\SM
REV.
1
DES.
SAB
LANT ~
TRASH
ENCLOSURE
LANDSCAPED EMBANKMENT
TPHG IN SOIL SAMPLES
FROM TANK REMOVAL
PROJECT NO.:
022504676
DATE:
12/93
PM
FIGURE:
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GASOLINE STORAGE:
TANKS
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SIDf:W"LK
WHITE LANE
PROPERTY LINE:
80RING LOCATION
¡9[1~IGROUNDWmR 0 fEET 40 SITE MAP
'-i::
DO TECHNOLOGY SCALE:
CLIENT: rilE:: PROJECf NO.: PM PE/RG
ARCO PRODUCTS CO, C:\ARCO\5365\SM 022504676
ARCa F' ACILlTY NO. 5365 REV.
LOCATION: 1 FIGURE::
WIBLE ROAD AND WHITE: LANE DES. OATE: 4-
8AKERSF"IELD. CALlF"ORNIA SAB 12/93 .
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TABLES
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T4750
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TABLE 1
Soil Stockpile Analytical Results
ARCO Station No. 5365
Bakersfield, California
" "',"'" ""..... ::::::::::::r::::r::::::r:::::::::::::::: =]~tÄtì¡ijj~(
::::::::::::!.~r::::::::::::::::=::::~#.fum.~:::::::::n::::::::::::::::::::]tffi::::::::::"",::r::!~!WM:
:r:::::::::rc.ø.rr:r::r r=======:r»iOOi:r::=:==:m: m:mr:r::m:~r:::::::::::::(:::rmml¥~g'
SP-1 11/4/98 4,200 <10 250 100 720 <70
SP-2 11/4/98 1.8 <0,0050 0,0086 0,0098 0,096 <0,035
SP-3 11/4/98 250 0.41 8,3 4,1 32 <1.4
SP-4 11/4/98 7.4 <0,0050 <0,0050 0,0075 0,19 <0,035
SP-5 11/4/98 53 <0,20 0.47 0,32 3.4 < 1.4
Notes:
mg/~g - Milligrams per kilogram
TPHg - Total petroleum hydrocarbons characterized as gasoline
Page 1 of I
SECOR
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ATTACHEMENT A
Air Monitoring Logs
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SECOR International Incorporated
SCAQMD Rule 1166 Air Monitoring Log
ARco
SECOR Personnel: r...... K ~ &-€\IS
Date of Excavation: 1 \, l./ - q ~
Monitoring Device: 't-/ f' to I:::. in 1 y7 (l-1
Client:
Facility No.:
Signature:
C~~·/~~
Model No.: ~. DV n
Calibrated To: I tjJ Pf»'l ' Jie;<t,..,t?
Calibration Date:
Permit No.:
Wind Direction: N/ -1
Excavation Equipment: ~c\t '/liM. IA )'/ d ¡,-', 1\ ~ Pl4-:b:=. ¿L, ..¡.--ct/I-t::
TIME
LOCATION
CONCENTRATION
(ppmv)
REMARKS
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ATTACHMENT B
Laboratory Analytical Report and Chain-of Custody
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Del Mar Analytical
REC'D NOV 1 4 1QQA
2852 Alton Ave" Irvine, CA 92606 (949) 261-1022 FAX (949) 261-1228
1014 E. Cooley Dr" Suite A, COllon, CA 92324 (909) 370·4667 FAX (909) 370-1046
16525 Sherman Way, Suite C,11, Van Nuys, CA 91406 (818) 779-1844 FAX (818) 779,1843
9484 Chesapeake Dr" Suite 805, San Diego, CA 92123 (619) 505,9596 FAX (619) 505-9689
2465 W. 12th St, Suite 1, Tempe, AZ 85281 (602) 968,8272 FAX (602) 968-1338
ANALYTICAL REPORT
Prepared For: SECOR International, Inc.
290 Conejo Ridge Ave., Ste. 200
Thousand Oaks, CA 91361
Attn: John Bollier
Project: ARCO Work Auth. #23450-00
5365, Bakersfield
Sampled:
11/4/98
~.~
Roan J. McRae
Laboratory Manager
- H £)-4
~oseph Doak
Project Manager
I 2852 Allan Ave" Irvine, CA 92606 (949) 261,1022 FAX (949) 261-1228
1014 E. Cooley Dr., Suite A, Colton, CA 92324 (909) 370,4667 FAX (909) 370-1046
l~c~@~~:~~a~~~~!;m$W_~ßID'~';;;;;=::§.~.;~~~::~:;;:~m :E::~~ ¡~:::=
:!::SECOR International, Inc, Client Project 10: ARCO Work Auth, #23450-00 ,.."..,""Šåmpléd: HNov"'4';""Úmí3!!!:!
'!!290 Conejo Ridge Ave., Ste. 200 5365, Bakersfield Received: Nov 5, 1998!!!!!
I ~~::~Thousand Oaks, CA 91361 Analysis Method: EPA 5030/CA OHS Mod. 8015/8020 Extracted: 11/5-11/6, 1998::~:!
~r Attention: John Bollier First Sample #: VHK00058 Analyzed: 11/5-11/6, 1998 :~:~!
'H":':':':::::::':::'::::::::::::::::::::::::::::::::::::::::::'::::::::::::::':::':':':::::'::":::::::::"":'::::::::::::::;:";"""'::':::::':':;:":"::::::::::::::::::::::::::::::::::::::::::::::::",;,,:,:;;,;:::,""""";';';:':':""::::::::'::""""""':"'",:,:::::::::;:::::;:",;,::",,:,,::,:,,::::::::::::::"",,:;:::::::;:::::::;,;:::::::;:;:;;;;:;;:;;;;;;;:::::::::;:::;::;;;;;;;;;;:::;::::::::::::::::~:;gg~;:~;:;;;;;:;::::::::::::::::~::~~::;:::~;'.:,:::,:~::::,9,~,,!:!:!
I VOLATILE FUEL HYDROCARBONS/BTEX DISTINCTION (CA DHS Mod. EPA 8015/8020)
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Laboratory Sample Volatile Fuel Ethyl Total
Number Description Hydrocarbons Benzene Toluene Benzene Xylenes
QC Batch Soil mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg
(ppm) (ppm) (ppm) (ppm) (ppm)
VHKOOO58 SP-1 4,200 N.D. 250 100 720
HK06051S
Dilution: 2000 Reporting Limit: 2,000 10 10 10 30
VHK00059
HK06051 S
Dilution: 1
SP-2
1.8
N.D.
0.0086
0.0098
0.096
Reporting Limit:
1.0
0.0050
0.0050
0.0050
0,015
VHK00060
HK05041S
Dilution: 40
SP-3
250
0.41
8.3
4.1
32
Reporting Limit:
40
0,20
0.20
0.20
0,60
VHK00061
HK06051S
Dilution: 1
SP-4
7.4
N.D.
N.D.
0.0075
0.19
Reporting Limit:
1.0
0,0050
0.0050
0.0050
0.015
VHK00062
HK06051S
Dilution: 40
SP-5
53
N.D.
0.47
0.32
3.4
Reporting Limit:
40
0.20
0.20
0.20
0,60
Volatile Fuel Hydrocarbons are quantitated against a gasoline standard, Hydrocarbons detected by this method range from C6 to C12,
Analytes reported as N,D, were not present at or above the reporting limit. Dilution factors are due to matrix effects and other factors,
I
(ELAP #1855)
Results pertain only to samples lested in the laboralory, This report shall not be
reproduced, except in full, wilhout written permission from Del Mar Analytical.
VHK00058,SEA <1 of 4>
I 2852 Allon Ave" Irvine, CA 92606 (949) 261,1022 FAX (949) 261-1228
1014 E. Cooley Dr.. Suite A, Colton, CA 92324 (909) 370,4667 FAX (909) 370,1046
1~~~~~:~~'~~:~iD:ARCÔ~~Ä~~~§~~~~;;~~!;;:
'::::290 Conejo Ridge Ave., Ste. 200 5365, Bakersfield Received: Nov 5, 1998)))))
)')')Thousand Oaks, CA 91361 Analysis Method: EPA 5030/8020 Modified Extracted: 11/5-11/6, 1998)':
IAtt:::~~1æJ
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MTBE (EPA 8020 Mod.)
Laboratory Sample Sample Reporting
Number Description Result Limit
QC Batch Soil mg/Kg mg/Kg
(ppm) (ppm)
VHKOOO58 SP-1 N,D. 70
HK06051S
VHKOOO59 SP-2 N.D, 0.035
HK06051S
VHKOOO60 SP-3 N.D. 1.4
HK05041 S
VHKOOO61 SP-4 N.D. 0.035
HK06051 S
VHKOOO62 SP-5 N.D. 1.4
HK06051 S
MTBE = Methyl tert-Butyl Ether
Dilution
Factor
2,000
1.0
40
1.0
40
Analytes reported as N,D, were not present at or above the reporting limit. Dilution factors are due to matrix effects and other factors,
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Results pertain only to samples tesled in Ihe laboratory, This report shall not be
reproduced, except in full, without written pennission from Del Mar Analytical.
VHK00058,SEA <2 of 4>
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Del Mar Analytical
2852 Alton Ave" Irvine, CA 92606
1014 E. Cooley Dr.. Suite A, Colton, CA 92324
16525 Sherman Way, Suite C'11, Van Nuys, CA91406
9484 Chesapeake Dr" Suite 805, San Diego, CA 92123
2465 W. 12th SI., Suite 1, Tempe, AZ 85281
(949) 261-1022 FAX (949) 261-1228
(909) 370-4667 FAX (909) 370-1046
(818) 779,1844 FAX (818) 779,1843
(619) 505-9596 FAX (619) 505'9689
(602) 968-8272 FAX (602) 968,1338
SECOR International, Inc.
290 C . R'd A St 200 ,;,;,;,;,;,;.:,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;.:,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;,;
one JO I ge ve. , e. ~::::~r:t:r~:~~:~:t:rr:~~~~~~:::rr~:::{{:t~~:~:;;\;t~~~:~~~::~::~~:::::::::::::::~~:~::t(\ttt::~::::r:~rrr::::::::::::::::::::::::rr:~:~r
Th d 0 k CA 91361 ,..,..""'......""""""·' :;;¡;j;:a¡h'"""~..BJ:~;nJ:j;i:.......""..,..".......,.........",
Att~~~~~: Jo~n Ssollier ;,::"I,..':!!!:!::,:I::::!:I,:'..!:':'::!:!~!~!,,:':!:iI~::::::::II,:,::::::::::~B::::::I:::!:::::!,'..:~;::,::~:::::;::::::::::::::::::::::i::i:;:,:;:;I:,!ii,,:::
....""""..""""",..',..............",."""...,""",........."",'..,...........,......""....
...""",..,..."""'..".....,.......,."""",...,..,,",............'...,.".."",..,......"",'....
.....""......"",'..,..,.,............."""",.....""..,..........",'..".,."..............""....
Extracted:
Analyzed:
Reported:
11/5-11/6,1998
11/5-11/6,1998
Nov 6, 1998
VOLATILE FUEL HYDROCARBONS/BTEX DISTINCTION (CA DHS Mod. EPA 8015/8020)
Sample Volatile Fuel Ethyl Total
QC Batch Description Hydrocarbons Benzene Toluene Benzene Xylenes
mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg
(ppm) (ppm) (ppm) (ppm) (ppm)
HK06051 S Method Blank N.D. N.D. N.D. N.D. N.D.
Dilution: 1 Reporting Limit 1.0 0.0050 0.0050 0.0050 0.015
HK05041S Method Blank N.D. N.D. N.D. N.D. N.D.
Dilution: 1 Reporting Limit 1.0 0.0050 0.0050 0.0050 0.015
Volatile Fuel Hydrocarbons are quantitated against a gasoline standard, Hydrocarbons detected by this method range from C6 to C12,
Analytes reported as N,D, were not present at or above the reporting limit. Dilution factors are due to matrix effects and/or other factors,
I
ELAP #1855)
Resulls pertain only 10 samples tested in the laboratory, This report shall not be
reproduced, except in full, without written pannission from Del Mar Analytical.
VHK00058,SEA <3 of 4>
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Del Mar Analytical
2852 Allan Ave" Irvine, CA 92606
1014 E. Cooley Dr., Suite A, Colton, CA 92324
16525 Sherman Way, Suite C'II, Van Nuys, CA 91406
9484 Chesapeake Dr., Suile 805, San Diego, CA 92123
2465 W, 12th SI., Suite 1, Tempe, AZ 85281
(949) 261-1022 FAX (949) 261-1228
(909) 370,4667 FAX (909) 370-1046
(818) 779,1844 FAX (818) 779,1843
(619) 505,9596 FAX (619) 505,9689
(602) 968,8272 FAX (602) 968,1338
I
SECOR International, Inc.
290 Coneio Ridge Ave Ste 200 :""-:-:,"""""""',':,:,:,:,:,, " """":':':::::::::::':':'::::'::::':':':::::::::::::::"""""';',',,, ""'" """',""""",::::::',':'",;"",,',',,::::',',',',':':',',":',
J . , . :::::::::::::::r::::::::::::::::::::t::,:::::::r,::,:::::::::,::::::::::::::::::::':'::{:,::::::::):::¡::::::,,:::(:/::::::::,:,;::;\:/:}}::::::t::;')\\::i::::::
Thousand Oaks CA 91361 ................·........Method..Bfank...................................
Attention: John Bollier ',::::1,:,':':1:,:;;:::::1::1:11:',':::':1,1,11'::::1:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::'::::::::,:::'::::::::',:,:1:;:,:,:1:::1::,::::,:,:::::':1:1:::'::,':::::::
Extracted:
Analyzed:
Reported:
11/5-11/6,1998
11/5-11/6,1998
Nov 6, 1998
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MTBE (EPA 8020 Mod.)
I
QC Batch
Sample
Description
Sample
Result
mg/Kg
(ppm)
Reporting
Limit
mg/Kg
(ppm)
Dilution
Factor
I
HK06051S
Method Blank
N.D.
0.035
1.0
I
HK05041 S
Method IBlank
N.D.
0.035
1.0
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MTBE = Methyl tert-Butyl Ether
Analytes reported as N,D, were not present at or above the reporting limit. Dilution factors are due to matrix effects and other factors,
(ELAP #1855)
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Resulls pertain only to samples tested in the laboratory, This report shall not be
reproduced, except in full, without written permission from Del Mar Anatytical,
VHK00058,SEA <4 of 4>
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Del Mar Analytical
2852 Alton Ave.. Irvine, CA 92606 (949) 261-1022 FAX (949) 261-1228
1014 E, Cooley Dr" Suite A, Colton, CA 92324 (909) 370-4667 FAX (909) 370,1046
16525 Sherman Way, Suite C·11, Van Nuys, CA 91406 (818) 779-1844 FAX (818) 779-1843
9484 Chesapeake Dr" Suile 805, San Diego, CA 92123 (619) 505,9596 FAX (619) 505-9689
2465 W. 12th St., Suite 1, Tempe, AZ 85281 (602) 968-8272 FAX (602) 968-1338
Date:
Sample #:
Batch #:
Analvte
TPH
Benzene
Toluene
Ethylbenzene
Xylenes
MTSE
1''''' ......, r" r r.... r" ......rf..' I,.... "I'''' r f¡f¡Ii¡f..lrr........ ...., "....'I
11:1::::11111111111,/,,'11111111,/:11111::111'11,111::1111,:,':',11,..,1
..
"
, EPA Method 8015/8020
11/05/98
VHK00049
Matrix: Soil
HK05041S
R1
ppm
fu!
ppm
MS
ppm
MSD
pprn
PR1
%
PR2
%
RPD
%
Mean PR Acceptance Limits
%
RPD
Mean PR
0.067 1.1 1.2 1.3 107 108 1.2 107
0.10 0.098 0.099 98 99 0.93 99
0.00094 0.10 0.10 0,10 100 100 0.23 100
0.00031 0.10 0,10 0.10 100 101 0.79 100
0.0055 0,30 0,31 0.31 100 100 0.10 100
11.5 11.5 /96 I
0.016 1.4 97 95 2.3 I
~20 65 - 130
~20 75 - 120
~20 75 - 120
~20 / 80 - 125
~20 180-120
~30 ! 50 - 150
Definition of Terms
R1. . . . . . . . . . . . . . . . . . .. Result of Sample Analysis
Sp, . . . . . . . , . . . . . . . . . .. Spike Concentration added to sample
MS. , . . . . . , . . . . . . . . . . .. Matrix Spike Result
MSD. . . . . . . . . . . . . . . . . . . Matrix Spike Duplicate Result
PR1. . . . . . . . . . . . . . . . . .. Percent Recovery of MS; «MS-R1)/SP) X 100
PR2. . . . . . . . . . . . . . . . . .. Percent Recovery of MSD; «MSD-R1)/SP) X 100
RPD. . . . . . . . . . . . . . . . . .. Relative Percent Difference; «(MS-MSD)/(MS+MSD)/2) X 100
Mean PR. . . . . . . . . . . . . .. Mean Percent Recovery
Acceptance Limits. . . . .. Determined by in-house Control Charts
Del Mar Analytical
~o _u*o_v~.. - ~as~er~ ~ó~ ~ - - - - clIiI OfiÎÌllllfto~
ion 01 ichlie ny-
ARCO Facility no, ,:~ ?;. C c;- I City \), , (' \ ..1 Project manager -' ß ¡ I ' Laboratory name
(Facilitv) '(.\ \( e ," ~ " ¡.:. ('.1 IlConsultant)J c)hh '\(' ,I f ~ \)(~\ '---\
ARCO engineer \')c. v (' ~ \ f· ('~ \,.. Telephone no, , Telephone no, ~o, ( C\.ì'
lARCO) (·11L.\ ')t',.) - (j\~ ¡ IlConsultant) (c-C'~ 1 J. ~ L:' I '1 (j Consultant) (<¿,....:¡) ^ ~(, ' I Á 7 7 Contract number
Consultant name r", I tddress R .<.L¿... \.Ì ''') Ci 1 -/
( . lU() 'Tlv'll""" '--)
-S EL 0 I (Consultant) ,~,¡ü C.:..,,"-· (.I :::,rr _
Matrix Preservation \J.¡ 0 ~ Method of shipment
(!lor) '葤 l)~\: v(>~("1
J-- :!!D 0 w Æ> S!o 0
.. .. ' 2 ~ :l!u
Ó ãi ~ r.:~ 23j '" 0
$"; ~.... en
q c: 'C ~ ~ 0 ~ R ~ wt;¡ :r: 0
-g,,!, ..- ~ ~ 0
Qj 0> 0> ..... '" '"
,5 ,5 ~~ ~o ~D ~ ~ ~O ~~Ñ
.. Ó c: Soil Water Other Ice Acid ~ ~O <Ó 1Ë 0
ã. c: ë¡; ã. ã. ~~, :;¡: ~ ~ owi::
E ë E E ~~ æ~ ~Ë ~u
.c :r:., :r:< < < < ~.... ~!~
'" '" 0 '" '" ....... ..... _M ...... ... ... ... u'"
en .... () en en <ow ....e> õ:; ....w w w w ....~ ul= ............
:1 Special detection
\ ~Pi X )( Il"4-C/~ 1Ç'30 X LimiUreporting
)~ sp ,.z It:;J.. 0
'X SP 3 I (;,J.5'
~ 'SPi I l:-:.r7 Special OAlOC
'< SPS- ~V \1/ '\/ \ l ~ LtO .y
Remarks P-.A ï:" A ~'?"\ ,!J"
Wo"\. f \ rW. 1'\0 tt.C::-5C
·s"U-"~ee. (-.'.:=,,- M Tß(-
hy ~"'O., T~';iè
, \\v i:1:.e-sb '5'~WI~i-€-
\) 'f bOLO fz:..~
Le~\.vt
Lab number
~ .. ~, Turnaround time
IJ~ Priority Rush
1 Business Day Q¡(
, Condition of sample: ì V\i fw0--t Temperature received: CÐU\
Rush
RelinQuis,/2) I)y samyler ~ Dat~ { _Time RecmY:J 1\ /s- (¿i '15 )" J- 5 2 Business Days 0
,0 r\ ') ~ Ö 0~ ð-:J
~ ~I TT / I' ,~-/"". I, '0
/Áe/~~ ) Da\Ð i ' Time Received by Expedited
ill ç çt.t \DDl> () 5 Business Days 0
I i-Rélinqu)Sf\ed by /"I
Da\e I TimA .r.I~ived bY~~fy. l J JDL1/\ l~y Ti7 (fV.-.:J Standard
( I( /"-v '-<..-/ ~ 10 Business Days 0
\..
Distribution: White copy - laboratory; Canary copy - ARCO Environmental Engineering; Pink copy - Consultant
APC·3292 12,91)
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ATTACHMENT C
Historical Analytical Data
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. . ~ - , "~,,,...~ '.' ..., .....
Table 1. Analytical results On mg/kg) of soU samples from borings, 7/30/93.
Sample No. TPH 8S
(Indicates Benzene Toluene Ethylbenzene Xylenes Gasoline
depth)
81-5' - - - - <10
B1-10' <0.005 <0.005 <0.005 <0.015 <10
B1-15' - - - - <10
B 1-20' < 0.005 <0.005 <0.005 <0.015 <10
82-5' - - - -- <10
82-1 A' - - - -- <10
82-15' - - - - <10
82-20' < 0.005 <0.005 <0,005 0.033 <10
82-25' <0.005 <0.005 <0.005 <0.015 <10
83-5' - - - - <10
83-15' <0,005 0.066 0.017 0.36 <10
83-20' - - - - <10
63-25' - - - - <10
83-30' <0.005 <0.005 <0.005 <0.015 <10
- Constituent not analyzêd
SIt8 Assessment Report
ARCO Facility No. 536S
.line 16, 1994
DD&iI GRoUNDWATER
ODD TECHNOLOGY
1-:
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Table 2. Analytical results (in mg/kg) of soU samples from beneath dispensers, piping and tanks.
sample No, Benzene Toluene Ethyl- Xylenes TPHG
benzene
D1W <0,005 0.66 3.3 39 570
D1E <0.005 <0.005 < 0.005 <0.015 17'
D2W <0.102 12 8.4 300 3,400
D2E 95 750 190 1,200 9,900
D3W 1.3 71 57 470 4.600
D3E 0.089 1.4 0.86 6.7 150
P1 <0,005 <0.005 <0.005 <0.015 <10
P2 < 0.005 <0.005 <0.005 < 0.015 <10
P3 < 0.005 <0.005 <0.005 0.039 <10
P4 <0.005 <0.005 < 0.005 <0,015 <10
T1-2' 0.95 42 36 300 2,300
T1-6' 23 140 390 850 6,600
T2-2' 1.4 55 37 450 4,700
T2-6' < 0.005 0.031 0,012 0.13 <10
T3-2' <0.005 <0.005 < 0.005 <0.015 <10
T3-6' 0.008 0.13 0.062 1.3 18
2
Hydrocarbons In the gasoline range do not match the gaSoline standard.
Reporting limits raised due to dilution.
51'10 A5ðcssment Repon:
ARc:O Faonlty No. 5385
.l1li1<: '.. 1994
~ GRoUNDWATER
ODD TECHNOLOGY
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Table 3. Analytical results (in mg/kg) of soli samples from borings. 5/19/94.
Sample No. Benzene Toluene Ethyl- Xylene' TPHG
benzene
84-4 - - - - -
84·9 <0.005 <0.005 <0.005 < 0.015 <1
64-14 < 0.005 <0.005 <0.005 <0.015 <1
84-18 .. - - - -
84-24 -. - - - -
84-29 <0.005 <0.005 <0.005 < 0.015 <1
85-3 -- - .. .. -
85-8 <0.005 < 0.005 <0.005 <0.015 <1
65-13 < 0.005 <0.005 < 0.005 <0.015 <1
85-18 .. - - - -
65·24 -- - - - ..
85-29 <0.005 < 0.005 <0.005 ' <0.015 <1
86-4 - - - .. -
B6·8 0.~4 3.0 5.8 42.0 1400
86-13 .. - - -- ..
86·18 <0.005 <0.005 <0.005 < 0.015 <1
86-23 - - - .. -
86-29 .. .. - - ..
86-34 <0.005 <0.005 < 0.005 <0.015 <1
61·20 - - - .- ..
67-25 <0.005 <0.005 < 0.015 <1
87-30 - - - - -
67-35 < 0.005 <0.005 <0.005 <0,015 <1
87-40 - - - -. -.
67-45 0.020 <0.005 <0.005 <0.015 <1
, .. Constituent not analyzed
Site Assu¡;ment Report
ARCO Facility No. 536!i
June 18, 1994
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ODD TECHNOLOGY