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ARCHIVED REPORTS XR0010266
EnvironmentalHealth
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3500 - Local Oversight Program
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PR0544799
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ARCHIVED REPORTS XR0010266
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Entry Properties
Last modified
11/19/2024 10:19:06 AM
Creation date
9/3/2019 3:36:16 PM
Metadata
Fields
Template:
EHD - Public
ProgramCode
3500 - Local Oversight Program
File Section
ARCHIVED REPORTS
FileName_PostFix
XR0010266
RECORD_ID
PR0544799
PE
3528
FACILITY_ID
FA0003872
FACILITY_NAME
DISCOVERY CHEVROLET
STREET_NUMBER
1615
Direction
W
STREET_NAME
ELEVENTH
STREET_TYPE
ST
City
TRACY
Zip
95376
APN
23227019
CURRENT_STATUS
02
SITE_LOCATION
1615 W ELEVENTH ST
P_LOCATION
03
P_DISTRICT
005
QC Status
Approved
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EHD - Public
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17F <br /> i <br /> Y E��. <br /> f <br /> Ms. Evelyn Hubel <br /> y February 25, 1999 <br /> Page 4 <br /> storage area were analyzed for total California Leaking Underground Fuel Tank (LOFT) 5 <br /> metals (cadmium, chromium, lead, nickel, and zinc) by EPA Test Method 601017000. <br /> Groundwater samples were collected from 3 of the 4 existing monitoring wells (MW-1, MW-3, <br /> and MW-4) located onsite. Monitoring well MW-2 was reportedly destroyed during UST <br /> removal activities in 1993 and MW-5 was not sampled by ENSR. Prior to collecting <br /> groundwater samples, each monitoring well was purged of approximately 3 well volumes. <br /> Groundwater samples collected from monitoring wells MW-1, MW-3, and MW-4 were analyzed G <br /> for total and dissolved LUFT 5 Metals (cadmium, chromium, lead, nickel, and zinc) by EPA Test <br /> Method 601017000. Groundwater samples submitted for dissolved metals analyses were <br /> filtered at the laboratory to remove sediment prior to analysis. In addition, groundwater <br /> samples collected from monitoring wells MW-3 and MW-4 were analyzed for TEPH as gasoline, <br /> MTBE and BTEX using EPA Methods 8015M and 8020, respectively. t <br /> Laboratory Results <br /> Analytical results of soil samples collected from the 18 borings advanced at the subject site <br /> indicate that chlorinated VOCs were not detected above laboratory reporting limits in soil <br /> samples collected in the vicinity of the floor drains, former AST, former drum storage area, and <br /> former USTs. PCBs were not detected above laboratory reporting limits in soil samples <br /> collected in the vicinity of the 5 hydraulic auto body lifts. Analytical results of collected soil <br /> samples are summarized in Table 1 in Attachment 2 as compared to EPA Region 9 PRGs for <br /> residential soil. A copy of the laboratory report is provided in Attachment 3. <br /> A soil sample collected at a depth of 5 feet bgs from boring SB-2 located near the floor drain in <br /> the north end of the auto body shop contained TRPH at a concentration of 1,409 ppm. The <br /> TRPH analysis is, in general, a screening analysis designed to ascertain whether hydrocarbons <br /> are present. Typically, site cleanup objectives are based on the results of EPA Method 8015M <br /> analysis, which can discriminate between gasoline, diesel, and motor oil petroleum hydrocarbon <br /> compounds. Based on EPA Method 8015M analysis of the soil sample collected from SB-2 at 5 <br /> feet bgs, gasoline, diesel, and motor-oil hydrocarbon compounds were not detected at <br /> concentrations above laboratory reporting limits. <br /> TRPH was also detected at 479 ppm in the soil sample collected at 10 feet bgs in boring SB-14 <br /> located adjacent to the hydraulic lift at the south end of the service bay building. EPA 8015M <br /> analysis revealed the presence of gasoline (59 ppm), diesel (1,700 ppm), and motor oil (3,500 <br /> ppm) in this soil sample. Petroleum hydrocarbons (TRPH) were not detected in soil samples <br /> collected at 5 feet bgs from boring SB-14. <br /> i <br /> - i <br />
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