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ARCHIVED REPORTS XR0011352
EnvironmentalHealth
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3500 - Local Oversight Program
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PR0544624
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ARCHIVED REPORTS XR0011352
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Last modified
7/3/2019 6:26:43 PM
Creation date
7/3/2019 3:55:11 PM
Metadata
Fields
Template:
EHD - Public
ProgramCode
3500 - Local Oversight Program
File Section
ARCHIVED REPORTS
FileName_PostFix
XR0011352
RECORD_ID
PR0544624
PE
3526
FACILITY_ID
FA0005206
FACILITY_NAME
GEORGES SERVICE
STREET_NUMBER
1600
Direction
W
STREET_NAME
DURHAM FERRY
STREET_TYPE
RD
City
TRACY
Zip
95376
APN
25510004
CURRENT_STATUS
02
SITE_LOCATION
1600 W DURHAM FERRY RD
P_LOCATION
99
P_DISTRICT
005
QC Status
Approved
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EHD - Public
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Geological Technics Inc --- - - - ---- -- - - _ - Page 2 - - <br /> George's Service <br />' Additional Site Characterization Work Plan <br /> Project No 2812 <br /> January 29,1996 <br />' north Laboratory analytical data has shown that both the soil and groundwater <br /> environments are impacted by gasoline <br />' On November 9, 1995 the SJCPHS/EHD directed that George's Service submit a T <br /> work plan to further investigate the extent of contamination at this site. This plan <br /> was prepared in response to this request <br /> i <br /> 2.0 PROPOSED INVESTIGATION <br /> 2.1 Information Generated for Risk Based Corrective Action Evaluation <br /> In light of the changes occurring in the regulatory requirements for engineered <br /> cleanups and the move towards rapid closure of sites that pose a low risk to human <br /> health and the environment, Geological Technics Inc recommends that several <br /> issues be addressed to provide valuable data to SJCPHS/EHD for the purpose of <br /> determining if this site meets the criteria for a low risk site These tasks include, but <br /> may not be limited to the following- <br /> 0 Perform a well survey to locate domestic wells within a 500 foot radius and <br /> review the site and adjacent properties for potential human and environmental <br /> receptors that may be impacted by these chemicals <br /> o Perform monthly groundwater level measurements to determine predominant <br /> direction of flow <br /> I o Perform quarterly groundwater monitoring for a minimum period of 1 year to <br /> determine if the plume is in a growth mode, stable, or decline mode <br /> a Review the sales records of the petroleum distributor to determine if the fuel <br /> delivered to this station may have contained the additive MTBE. If it is <br /> suspected, then perform lab testing for this chemical <br /> 2.2 Monitoring Well Installation <br /> To further investigate the lateral and vertical extent of gasoline and kerosene range <br />' petroleum hydrocarbons in the soil and groundwater environments, Geological <br /> Technics Inc proposes to install three additional shallow groundwater monitoring <br /> wells surrounding the known plume area and one discretely screened deeper <br /> monitoring well (Figure 2 Site Map) <br /> Based on the May 3, 1995 groundwater gradient calculation the groundwater <br /> exhibits a predominately north direction of flow The well borings will be drilled <br /> . using an 8 00 inch outside diameter continuous flight hollow stem auger owned and <br /> I <br />
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