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PR0544465
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Last modified
5/16/2019 11:54:59 AM
Creation date
5/16/2019 11:30:23 AM
Metadata
Fields
Template:
EHD - Public
ProgramCode
3500 - Local Oversight Program
File Section
WORK PLANS
RECORD_ID
PR0544465
PE
3528
FACILITY_ID
FA0005837
FACILITY_NAME
STEFANOS GASOLINE*
STREET_NUMBER
1419
Direction
E
STREET_NAME
CHARTER
STREET_TYPE
WAY
City
STOCKTON
Zip
95205
APN
15137016
CURRENT_STATUS
02
SITE_LOCATION
1419 E CHARTER WAY
P_LOCATION
01
P_DISTRICT
001
QC Status
Approved
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EHD - Public
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r r � <br /> Wright <br /> -I'- SE 'Env* entalIMICEironm3 <br /> 03 SEP 15 PM 1: 27 '-- Services, Inc. <br /> 67 East 1Uh Street,Tracy CA 95376 <br /> Ph:209-833-0758—Fax:209-832-5152 <br /> September 12, 2003 <br /> Trust of Mary Gardella <br /> 5252 nd Street <br /> Santa Cruz, California 95060 <br /> Attn.: Ms. Winifred Alexander <br /> I Re: Addendum for Workplan for Soil Vapor Extraction Testing <br /> Stefanos Gasoline 1419 Charter Way, Stockton, CA <br /> Project No. 4233-3 (revision 1) <br /> Dear Ms. Alexander, <br /> At the request of the County of San Joaquin Public Health Service Environmental <br /> Health Division (PHS EHD) Wright Environmental has prepared this addendum to <br /> the workplan to address PHS EHD comments. <br /> I <br /> Soil Vapor Extraction Workplan (August 12, 2003) <br /> Soil vapor extraction (SVE) has been proposed as an interim remediation measure <br /> to clean up petroleum hydrocarbon impacted vadose zone soils at the subject site <br /> (Figure 1- Location Map). This workplan describes the installation of extraction wells <br /> and soil vapor monitoring probes and the protocol for conducting a SVE pilot test at <br /> the subject site. The objective of the test is to assess the feasibility of SVE in <br /> removing chemicals of concern (COCs) that occur at depths of 12 to 35 feet in site <br /> vadose zone soils. The CDCs include total petroleum hydrocarbons as gasoline <br /> (TPH-G); benzene, toluene, ethylbenzene, and xylenes (BTEX); 1,2 dichloroethane <br /> (1,2 DCA) and several fuel oxygenates detected in site soil or ground water. <br /> SVE Well Construction Details <br /> Two extraction wells will be constructed to target the silt/clay and sandy zones that <br />'r have been identified at different depths in the source area. The proposed wells will <br /> be located within the area of highest soil contamination (Figure 2- Site Plan). Should <br /> the test show SVE to be feasible these wells will be utilized for interim soil <br /> E remediation. The proposed extraction well specifications are as follows: <br /> Silt/clay zone - EW-1, 2-inch diameter, PVC Schedule 80, 0.020 slot size, screened <br /> 12-27 feet, TD 30 ft. Well terminated within silt zone. <br /> Sandy zone - EW-2, 2-inch diameter, PVC Schedule 80, 0.020 slot size, screened <br /> 30-35 feet, TD 35 ft. <br /> Revision 1 Page 1 of 3 <br /> E <br />
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