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ARCHIVED REPORTS_XR0011687
EnvironmentalHealth
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2900 - Site Mitigation Program
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PR0508007
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ARCHIVED REPORTS_XR0011687
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Last modified
2/6/2020 3:56:47 PM
Creation date
2/6/2020 3:26:32 PM
Metadata
Fields
Template:
EHD - Public
ProgramCode
2900 - Site Mitigation Program
File Section
ARCHIVED REPORTS
FileName_PostFix
XR0011687
RECORD_ID
PR0508007
PE
2950
FACILITY_ID
FA0007880
FACILITY_NAME
ARCO FACILITY #434
STREET_NUMBER
501
Direction
W
STREET_NAME
KETTLEMAN
STREET_TYPE
LN
City
LODI
Zip
95240
APN
03119028
CURRENT_STATUS
02
SITE_LOCATION
501 W KETTLEMAN LN
P_LOCATION
02
P_DISTRICT
004
QC Status
Approved
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SJGOV\sballwahn
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EHD - Public
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Date January 31,2002 <br /> Quarter 4Q01 <br /> ARCO QUARTERLY GROUNDWATER MONITORING REPORT <br /> Facility No 434 Address 501 W Kettleman Ln ,Lodi,CA <br /> ARCO Environmental Engineer Paul Supple <br /> Consulting Co/Contact Person SECOR/Rusty Benkosky <br /> Consultant Project No 077 43125 704 <br /> Primary Agency/Regulatory ID No San Joaquin County Environmental Health Services(SJCEHS) <br /> Assembly Bill 681 Status Property owned by Atlantic Richfield Company <br /> WORK PERFORMED THIS QUARTER (Fourth Quarter - 2001): <br /> 1 Performed quarterly groundwater monitoring and sampling <br /> 2 Prepared and submitted quarterly groundwater monitoring report <br /> WORK PROPOSED FOR NEXT QUARTER (First Quarter - 2002): <br /> 1 Perform quarterly groundwater monitoring and sampling <br /> • 2 Prepare and submit quarterly groundwater monitoring report <br /> QUARTERLY RESULTS SUMMARY <br /> Current Phase of Project Monitoring <br /> Frequency of Groundwater Sampling W-1A,W-2B,W-2,W-3,W-9,and W-2A sampled quarterly <br /> Frequency of Groundwater Monitoring Quarterly <br /> Is Free Product(FP)Present Onsite No <br /> FP Recovered this Quarter NA <br /> Cumulative FP Recovered to Date NA <br /> Current Remediation Techniques Natural attenuation <br /> Approximate Depth to Groundwater 53 '/z to 59 3/a ft <br /> Groundwater Gradient South and West @ 0 047 to 0 063 ft/ft <br /> DISCUSSION: <br /> Total petroleum hydrocarbons as gasoline(TPHg),benzene and methyl tert-butyl ether(MtBE)were reported as <br /> non-detect in all six wells Oil and grease was reported as non-detect in well W-9 Chemical concentrations are <br /> consistent with historical data with the exception of well W-2A,which historically has contained detectable <br /> concentrations of TPHg Groundwater elevations across the site increased by an average of 2 96 ft Groundwater <br /> flow direction was to the south and west at an approximate gradient of 0 047 to 0 063 ft/ft WeII W-lA has <br /> • increased significantly in groundwater elevation since the previous quarter <br /> This report presents our understanding of existing conditions at the subject site The conclusions contained herein <br />
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