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ARCHIVED REPORTS XR0001914
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3500 - Local Oversight Program
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PR0544497
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ARCHIVED REPORTS XR0001914
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Last modified
5/28/2019 3:37:33 PM
Creation date
5/28/2019 3:03:28 PM
Metadata
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Template:
EHD - Public
ProgramCode
3500 - Local Oversight Program
File Section
ARCHIVED REPORTS
FileName_PostFix
XR0001914
RECORD_ID
PR0544497
PE
3528
FACILITY_ID
FA0003687
FACILITY_NAME
OLD TRUCK STOP, THE
STREET_NUMBER
3535
STREET_NAME
CHEROKEE
STREET_TYPE
RD
City
STOCKTON
Zip
95205
APN
13206009
CURRENT_STATUS
02
SITE_LOCATION
3535 CHEROKEE RD
P_LOCATION
99
P_DISTRICT
002
QC Status
Approved
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EHD - Public
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01 November 2002 <br /> AGE-NC Project No 97-0312 <br /> Page 3 of 4 <br /> • Volatile organic compounds (VOCs) in accordance with EPA Method 8260B <br /> 3.0. FINDINGS <br /> Ground water elevations were determined by subtracting the measured depths-to-water from the <br /> surveyed casing elevations (Table 1) Ground water flow direction was determined by contouring <br /> the water elevations on a scaled site plan (Figure 4) Hydrocarbon-Impact to ground water was <br /> assessed by laboratory analysis and field observations <br /> 3 1 GROUND WATER ELEVATION AND GRADIENT <br /> Depths to ground water at the site ranged between 68 64 to 69 93 feet below top of casing (btoc), <br /> ground water elevations were between 40 62 feet(UST-4) and 41 14 feet (UST-2)below mean sea <br /> level (MSL) The ground water elevation had decreased by an average of 7 98 feet since the <br /> June 2002 monitoring event The ground water table occurred within the screened intervals of <br /> • monitoring wells UST-2 through UST-6 <br /> General ground water flow direction at the site was Inferred to be northwest with an average gradient <br /> of approximately 0 003 fl./ft or less Figure 4 depicts the ground water elevation contours for <br /> August 2002 <br /> Monitoring data from UST-2,UST-3 and UST-4 was combined with monitoring data collected from <br /> the adjacent Moore Truck Lines property to determine an approximate regional ground water flow <br /> direction <br /> 3 2 ANALYTICAL RESULTS OF GROUND WATER SAMPLES <br /> During the August 2002 monitoring event,TPH-g and TPH-d were detected in the sample collected <br /> from UST-5 at concentrations of 320 micrograms per liter(µg/1) and 71 gg/l, respectively <br /> Benzene was detected in the sample collected from UST-5 at a concentration of 19 µg/l <br /> MTBE was detected in the sample collected from UST-6 at a concentration of 0 72 µg/l 1,2-DCA <br /> was detected in samples UST-5 and UST-6 at concentrations of 440 µg/l and 4 4 µg/1,respectively <br /> No other target analytes were detected at or above laboratory reporting levels in the ground water <br /> . samples collected this quarter The laboratory reports (MAI Lab IDs 0208519-001 through <br /> Advanced GeoEnvironmental,Inc <br />
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