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ARCHIVED REPORTS XR0006786
EnvironmentalHealth
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3500 - Local Oversight Program
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PR0544639
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ARCHIVED REPORTS XR0006786
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Last modified
7/9/2019 4:25:39 PM
Creation date
7/9/2019 3:21:55 PM
Metadata
Fields
Template:
EHD - Public
ProgramCode
3500 - Local Oversight Program
File Section
ARCHIVED REPORTS
FileName_PostFix
XR0006786
RECORD_ID
PR0544639
PE
3528
FACILITY_ID
FA0005076
FACILITY_NAME
DICKS EXXON
STREET_NUMBER
2360
STREET_NAME
EAST
STREET_TYPE
ST
City
TRACY
Zip
95376
APN
23346001
CURRENT_STATUS
02
SITE_LOCATION
2360 EAST ST
P_LOCATION
03
P_DISTRICT
005
QC Status
Approved
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EHD - Public
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GEOLOGICAL AND HYDROGEOLOGICAL OVERVIEW <br /> 1 <br /> According to information contained within the September , <br /> 1991 WaterWork assessment , the Reeve ' s site is located on <br /> level terrain underlain by flood plain deposits of <br /> Pleistocene and Holocene age that are composed of sediments <br /> similar to , and prooabl � conformable on , underlying <br /> deposits of alluvium and Tulare formation. The flood plain <br /> deposits are light to dark-brown and grey clay , silty sand , <br /> and organic materials with locally high concentrations of <br /> salt and alkali Strrdm channel deposits of sand and <br /> gravel are also included <br /> 3roundwater within the shallow water bearing zone occurs <br /> less than ten feet below grade at the site as well as over <br /> most of the Tracy area General groundwater gradient is to <br /> the north The flood plain deposits of the shallow water <br /> bearing zone have well developed soil profiles and, <br /> consequently , exhibit poor permeability The base of the <br /> shallow zone is poorly defined and probably is from five to <br /> twenty feet below ground surface <br /> ENVIRONMENTAL COMPLIANCE ACTIVITIES PERFORMED DURING THE <br /> FIRST QUARTER OF 1994 <br /> . Placement and Sampling of Additional Exploratory Soil <br /> Borings <br /> -___- <br /> On March 17 , 1994 , Del Tech Geotechnical Support Services <br /> of Oakdale advanced four ( 4 ) soil borings (designated EP-1 , <br /> EP-2 , EP-3 , and EP-4 ) at the locations shown on Figure 2 <br /> Each boring was advanced with a hand auger Discrete soil <br /> samples and a grab water sample were acquired from each <br /> borehole Each soil sample was collected within a 1 9 inch <br /> diameter by 4 0 inch long clean brass sleeve fitted within <br /> a drive sampler lowered into the borehole to a point <br /> accessed by the hand auger Upon being retrieved, the <br /> drive sampler was opened and the brass sleeve removed The <br /> ends of each sleeve were then covered with teflon <br /> sheeting/aluminum foil , fitted with plastic caps , and <br /> sealed with duct tape Each tube was then marked and <br /> placed in an iced , insulated container for transportation <br /> to Priority Environmental Labs of Milpitas , a California- <br /> state certified hazardous waste analytical laboratory , <br /> under chain of custody Subsequent analyses were performed <br /> for Total Petroleum Hydrocarbons as Diesel (TPH-D) , Total <br /> Petroleum Hydrocarbons as Gasoline (TPH-G) , benzene , <br /> toluene , ethylbenzene , and total xylenes ( BTEX) using EPA <br /> Methods 3550/8015 and 5030/8015-8020 , respectively <br /> Grab water samples from each boring were acquired within a <br /> • clean , disposable polyethylene bailer lowered into the <br /> Page 2 <br />
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