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ARCHIVED REPORTS XR0001533
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3500 - Local Oversight Program
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PR0544465
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ARCHIVED REPORTS XR0001533
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Entry Properties
Last modified
5/16/2019 1:34:16 PM
Creation date
5/16/2019 1:20:09 PM
Metadata
Fields
Template:
EHD - Public
ProgramCode
3500 - Local Oversight Program
File Section
ARCHIVED REPORTS
FileName_PostFix
XR0001533
RECORD_ID
PR0544465
PE
3528
FACILITY_ID
FA0005837
FACILITY_NAME
STEFANOS GASOLINE*
STREET_NUMBER
1419
Direction
E
STREET_NAME
CHARTER
STREET_TYPE
WAY
City
STOCKTON
Zip
95205
APN
15137016
CURRENT_STATUS
02
SITE_LOCATION
1419 E CHARTER WAY
P_LOCATION
01
P_DISTRICT
001
QC Status
Approved
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EHD - Public
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r I1 <br /> A 1 <br /> 10 November 2004 <br /> • AGE-NC Project No 03-1100 <br /> r ' Page 2 of 4 <br /> r " properly labeled, placed in a chilled container, and transported under chain of custody to Cal Tech ' <br /> Environmental Laboratories, Inc (CTEL) for analysis The samples were analyzed for <br /> i Total petroleum hydrocarbons quantified as gasoline (TPH-g) in accordance with EPA <br /> Method 8015 Modified, <br /> • Benzene, toluene, ethylbenzene, and xylenes (BTEX) in accordance with EPA Method <br /> r8260B, and r <br /> • Fuel oxygenates methyl tertiary-butyl ether (MTBE), di-isopropyl ether (DIPE), ethyl <br /> r tertiary-butyl ether(ETBE),tertiary-amyl methyl ether(TAME),and tertiary butanol(TBA) <br /> In accordance with EPA Method 8260B <br /> 1 �I <br /> 3.0. FINDINGS <br /> rGround water elevation, flow direction, and gradient were determined from field data collected on <br /> 16 June 2004 The contaminant impact to groundwater was quantified by laboratory analytical,data <br /> r! r <br /> 3 1 ' GROUND WATER GRADIENT AND FLOW DIRECTION <br /> rAt the time of the June 2004 sampling event, depths to ground water ranged from 42 73 feet to <br /> 44 15 feet below the tops,ofthe well casings During this monitoring event, the ground water level h <br /> rin the wells was approximately 12 73 to 14 15 feet below the tops of the well screens,Indicating that ; <br /> the wells are screened properly and yielded representative shallow ground water samples <br /> rGround water elevations at the site ranged from 23 27 feet below mean sea level (MSL) in well <br /> MW-7 to 23'81 feet below MSL in wells MW-1 and MW-2 (Table 1) The average ground water r <br /> elevation at the site increased an average`of 0 04 feet between the March 2004 and June 2004 <br /> rmonitoring events The elevations increased in wells MW-2 and MW-6,while they decreased in the <br /> F r 1 <br /> __' rema rang wells <br /> rWells MW-1 through MW-7 were used to infer ground water flow direction and gradient The <br /> ground waters flow direction was inferred to be flowing inwards towards an elongated depression iri <br /> r the former UST location The hydraulic gradient averaged 0 008 foot/foot (ft/ft) or less Figure 3 <br /> illustrates the contoured ground water elevations as measured on 16 June 2004 <br /> i <br /> w <br /> Advanced GcoEnvironmental,Inc <br /> r <br /> x ' <br /> r <br />
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