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ARCHIVED REPORTS XR0010273
EnvironmentalHealth
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3500 - Local Oversight Program
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PR0544799
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ARCHIVED REPORTS XR0010273
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Last modified
11/19/2024 10:19:06 AM
Creation date
9/3/2019 3:36:40 PM
Metadata
Fields
Template:
EHD - Public
ProgramCode
3500 - Local Oversight Program
File Section
ARCHIVED REPORTS
FileName_PostFix
XR0010273
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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E1OR. <br /> Ms. Evelyn Hubei <br /> November 2, 1999 <br /> Page 2 <br /> residual concentrations of toluene (0.37 to 1.3 mg/kg), ethylbenzene (0.37 to 5.9 mg/kg), and <br /> total xylenes (0.079 to 8.4 mg/kg) were detected in the verification soil samples. TPH in the C6 <br /> to C12 range (1.8 to 470 mg/kg), TPH in the C13 to C23 range (1.3 to 260 mg/kg), and TPH in <br /> the C18+ range (59 to 70 mg/kg) were detected in the verification soil samples. A summary of <br /> the analytical results is presented in Table 1 (Attachment 2). Copies of the laboratory reports <br /> and chain-of-custody documentation are included in Attachment 3. <br /> Based on the analytical results of a soil pile sample it was determined that excavated soil could <br /> be disposed of as non-hazardous waste. On September August 11, 1999, 128 tons of the <br /> petroleum hydrocarbon impacted soil was transported to Forward Inc. Landfill in Manteca, <br /> California for disposal. Copies of the non-hazardous waste disposal manifests are included in <br /> Attachment 4. <br /> Soil Excavation Activities—September 1999 <br /> Soil impacted by petroleum hydrocarbons was encountered by Giardino Construction during <br /> additional grading and excavation activities conducted northwest of the former Discovery <br /> Chevrolet Service Bay building on September 2, 1999. Soils impacted by petroleum <br /> hydrocarbons were encountered around a possible leach pipe (36 foot length) located northwest <br /> of the former Discovery Chevrolet service bay building. Figure 1 (Attachment 1) contains the <br /> - location of the impacted soil encountered along the possible leach line. Giardino Construction <br /> removed the leach line as part of the installation of a new stormwater drain system. <br /> Approximately 49 tons of impacted soil were excavated by Giardino from an area approximately <br /> 40 feet long by 4 feet wide to a depth-of 5.5 feet bgs along the former leach line. ; <br /> f, <br /> Delineatign of Soil-l[ni2agledHydrocarbons <br /> ENSR delineated the area of impacted soil by observations of staining and the presence of <br /> volatile petroleum hydrocarbon vapors. Soil around and beneath the former leach line was <br /> over-excavated until evidence of stained soils and volatile petroleum hydrocarbons were no <br /> longer apparent in soil. A soil sample (Westend05) was collected from excavated soil at the <br /> western end of the excavation where the greatest amount of staining was observed prior to <br /> excavation. The soil sample was submitted to Sequoia Analytical, a state-certified analytical <br /> testing laboratory, for analysis. The soil sample was analyzed for volatile organic compounds <br /> (VOCs) by EPA Method 8260, purgeable and extractable petroleum hydrocarbons by EPA <br /> Method 8015, and total recoverable petroleum hydrocarbons (TRPH) by EPA Method 418.1. <br /> Results of Waste Qharacterization Ana <br /> Analytical results indicated that purgeable and extractable hydrocarbons, total recoverable <br /> petroleum hydrocarbons (TRPH), and volatile organic compounds were detected in the soil <br /> sample collected from excavated soil at the west end of the trench. Table 2 (Attachment 2) <br /> contains the results of the laboratory analysis. Attachment 3 contains the laboratory analytical <br /> results. <br /> Based on the analytical results it was determined that excavated soil could be disposed of as <br /> non-hazardous waste. On September 10, 1999, approximately 49 tons of petroleum <br />
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