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SR0085623
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SR0085623
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Entry Properties
Last modified
10/12/2022 10:55:12 AM
Creation date
10/4/2022 10:05:48 AM
Metadata
Fields
Template:
EHD - Public
ProgramCode
2900 - Site Mitigation Program
File Section
WORK PLANS
RECORD_ID
SR0085623
PE
2903
FACILITY_ID
FA0024809
FACILITY_NAME
OXYCHEM STOCKTON
STREET_NUMBER
1904
Direction
W
STREET_NAME
CHARTER
STREET_TYPE
WAY
City
STOCKTON
Zip
95206
APN
16302041
ENTERED_DATE
8/5/2022 12:00:00 AM
SITE_LOCATION
1904 W CHARTER WAY
P_LOCATION
01
P_DISTRICT
001
QC Status
Approved
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EHD - Public
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M c <br /> May 25, 2022 <br /> Mr.Jeff Wong <br /> San Joaquin County <br /> Environmental Health Department <br /> 1868 E Hazelton Avenue <br /> Stockton, California 95205 <br /> Subject:Monitoring Well Destruction Workplan, Former 76 Service Station No. 11190 <br /> 1206 East March Lane, Stockton, California. RWQCB File No. 391182, San Joaquin County Case No. 1698 <br /> Dear Mr. Wong: <br /> On behalf of Phillips 66 Company(Phillips 66),ATC Group Services LLC (ATC) doing business as Atlas <br /> Technical (Atlas), is submitting this workplan describing proposed activities and methodology pertaining <br /> to the destruction of groundwater monitoring and remediation wells associated with the above <br /> referenced site (Figures 1 and 2).This workplan was prepared as a requirement to apply for a Well <br /> Destruction Permit with the San Joaquin County Environmental Health Department (SJCEHD).The scope <br /> of work is described in detail in the following paragraphs. <br /> SITE HISTORY <br /> In April 1987, Kaprealian Engineering, Inc. (KEI)observed the removal of one waste-oil UST. No visible <br /> damage to the UST was observed and the soil sample from the tank pit showed no detectable levels of <br /> total petroleum hydrocarbons in the diesel range (TPHd), halogenated volatile organic compounds <br /> (HVOCs), and oil and grease. It should be noted that ATC could not locate a copy of KEI's UST removal <br /> report. In 1988, an unauthorized release report was filed with the San Joaquin County Public Health <br /> Service (SJCPHS) on the basis of two USTs that failed pressure tests along with a cracked impact housing <br /> in the diesel dispenser. <br /> Four USTs and associated piping were removed from the site in October 1991.The USTs were single-wall <br /> fiberglass tanks used to store leaded and unleaded gasoline and diesel. IT reported that the tanks <br /> appeared to be intact and no petroleum odor or staining was noted in the underlying soils; however, a <br /> San Joaquin County Inspection Report dated October 30, 1991, indicated a "strong hydrocarbon odor in <br /> pea gravel backfill." An oil/water separator located east of the former UST complex was also removed <br /> during excavation activities. Approximately 1,200 tons of soil from the UST excavation and the pipeline <br /> stockpiles and 25 cubic yards of soil from the oil/water separator excavation stockpile were transported <br /> to the BFI Landfill in Livermore, California. New tanks and piping were installed in November 1991 (IT, <br /> 1992). <br /> International Technology Corporation (IT) conducted a preliminary site investigation in June of 1991. <br /> Two soil borings were advanced near the former pump islands and the former UST complex to a depth <br /> of 20 feet below ground surface (bgs). A third boring was advanced to 45 feet bgs east of the former <br /> UST complex. Groundwater was not encountered in either of the soil borings. Soil samples were <br /> analyzed for total petroleum hydrocarbons in the gasoline range (TPHg),TPHd, and benzene, toluene, <br /> 1117 Lone Palm Avenue, Suite 201 B, Modesto, CA 95351 <br /> 209.579.2221 1 oneatlas.com <br />
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