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ARCHIVED REPORTS_XR0012021
EnvironmentalHealth
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EHD Program Facility Records by Street Name
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WILSON
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2900 - Site Mitigation Program
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PR0541653
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ARCHIVED REPORTS_XR0012021
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Last modified
10/10/2020 11:01:18 PM
Creation date
7/9/2020 8:24:49 AM
Metadata
Fields
Template:
EHD - Public
ProgramCode
2900 - Site Mitigation Program
File Section
ARCHIVED REPORTS
FileName_PostFix
XR0012021
RECORD_ID
PR0541653
PE
2965
FACILITY_ID
FA0023871
FACILITY_NAME
TOP FILLING STATION
STREET_NUMBER
101
Direction
S
STREET_NAME
WILSON
STREET_TYPE
WAY
City
STOCKTON
Zip
95205
APN
15125307
CURRENT_STATUS
01
SITE_LOCATION
101 S WILSON WAY
P_LOCATION
01
QC Status
Approved
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EHD - Public
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f 31 Jul),2000 <br /> AGE-NC Project No. 95-0130 <br /> ..Page 6 of <br /> -. Total petroleum hydrocarbons. 4uantif ed as gasoline (TPH-g) by- EPA Method 8015• ' <br /> i Modified, <br /> Volatile aromatic compoulids: benzene, toluene, ethylbenzene and•xylene (BTEX) witlf <br /> i methyl-tertiary butyl-ether(MTBE)by EPA Method 8020;and <br /> • Methanol,ethanol, tertiary.butanol (TBA), di-isopropyl ether.(DIPS),'ethyl tert butyl ether <br /> r (ETBE), tert amyl-methyl ether'(TAME), ethylene:dibromide (EDB), 1,2-dichloroethane <br /> "(1,2-DCA) and 1VITBE by EPA Method 8260 Modified. <br /> 3.4. • FINDINGS - <br /> Ground water elevation, flow direction and-gradient were'determined from field data collected on <br /> - <br /> .2 1June 2400;laboratory analysis of eleven ground water samples detected TPH-g and•BTEX'in nine <br /> r samples, MTBE in eight samples, TBA in two samples and 1,2'-DCA in five samples. <br /> 3.4.1. RELATIVE GROUND-WATER ELEVATION AND GRADIENT <br /> The depths to ground water.in wells MW--1 through'MW-5, VW=1B, VW-1C;-VW-2A, VW 2B, <br /> 7 = VW-3A and VW-3B were measured,between 36.15 and 37:22.feet below the tops of the well <br /> '- casings. Ground water.elevations at the site were calculated to be between 20.40 feet and.20.86 feet <br /> below mean sea level; ground water elevations are depicted in Figure 9. Ground water elevation at <br /> t the,site increased an average 0.68 feet between the March 2000 and the June 2000 ground water . - <br /> monitoring events. The general ground water gradient at the site was calculated to be approximately <br /> —,' 0.002 ft/ft or approximately 11,feet per mile and directed towards the northeast.The ground water . <br /> surface elevation at the site is approximately'13'feet to 23 feet above the slotted screen intervals in , <br /> wells MW_1 through-MW-5 and approximately 5 feet to 11 feet above the slotted screen intervals' <br /> r- in wells VW-IC, VW72A and VW:-3A. <br /> 3.4.2:. 'LABORATORY RESULTS OF GROUND WATER SAMPLES <br /> TPH-g was detected in water samples collected from wells MW-2,MW-3,.MW-5;VW-1B,VW-lC, <br /> VW-2A VW-214, VW=3A and VW-38 at concentrations between 170 arid300;000/igll. <br /> Various BTEX compounds were detected in water samples collected,from MW-2; MW-3,MW-5., <br /> VW-I C, VW-2A.and VW-3A at concentrations as-high as 44;000 ',ug/t (VW-IB). The greatest <br /> be eoncentration was detected.in the water sample collected from VW-IC at.37,000µg11. <br /> .^ Advanced GenEnvironmental,-Inc. <br />
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