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ARCHIVED REPORTS XR0011893
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3500 - Local Oversight Program
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PR0544802
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ARCHIVED REPORTS XR0011893
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Entry Properties
Last modified
11/19/2024 10:19:09 AM
Creation date
9/4/2019 11:47:59 AM
Metadata
Fields
Template:
EHD - Public
ProgramCode
3500 - Local Oversight Program
File Section
ARCHIVED REPORTS
FileName_PostFix
XR0011893
RECORD_ID
PR0544802
PE
3528
FACILITY_ID
FA0005153
FACILITY_NAME
FAYETTE MANUFACTURING CORP
STREET_NUMBER
7675
Direction
W
STREET_NAME
ELEVENTH
STREET_TYPE
ST
City
TRACY
Zip
95376
APN
25014012
CURRENT_STATUS
02
SITE_LOCATION
7675 W ELEVENTH ST
P_LOCATION
99
P_DISTRICT
005
QC Status
Approved
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SJGOV\wng
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EHD - Public
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v <br /> TC <br /> A S S O C I A T E S I N C <br /> On September 24 and October 2, 1996, Smith Technology conducted an additional subsurface <br /> investigation at the site. A total of nine soil borings were advanced to depths up to 15 feet below <br /> ground surface. Soil, soil vapor, and groundwater samples were collected from the borings. <br /> Analytical results of the soil and groundwater samples indicated the general extent of total <br /> petroleum hydrocarbons as gasoline (TPHg), benzene, toluene, ethylbenzene, and xylenes <br /> (BTEX), and methyl tertiary butyl ether (MTBE) in soil and groundwater under the site. <br /> Analytical results for geochemical parameters in soil and groundwater indicated bioremediation is <br /> occurring in the plume of petroleum hydrocarbons in groundwater beneath the site. Analytical <br /> �. results of soil vapor samples indicated the availability of oxygen, carbon dioxide, nitrogen and <br /> methane in the vadose zone. Also, results of laboratory geophysical testing on soil samples from <br /> the site indicated that the potential receptor on-site, the water supply well, would not be affected <br /> by the plume of petroleum hydrocarbons in groundwater within the next 20 years, in the worst <br /> case. <br /> On March 9, 1999, ATC supervised the installation of three groundwater monitoring wells, MW- <br /> 4, MW-5, and MW-6 (Figure 2). During installation of the monitoring wells, soil samples were <br /> L, collected from the borings. On March 11, 1999, ATC developed and sampled monitoring wells <br /> MW-4, MW-5, and MW-6. Analytical results of the soil and groundwater samples collected at <br /> the site indicated the lateral extent of impacted soil and groundwater had been defined. Refer to <br /> ►—..i ATC's Summary Report Additional Subsurface Investigation, 7675 West Eleventh Street, Tracy, <br /> California, dated May 12, 1999, for additional information. <br /> Based on historical data and a verbal discussion with Mr. Ron Rowe of SJEHD, ATC submitted a <br /> closure report request dated June 27, 2000. SJEHD did not formally respond to the report but <br /> instead requested that ATC perform another monitoring event. In a letter dated October 2, 2001, <br /> Ms. Dot Lofstom of the SJEHD requested computer modeling of the groundwater plume be <br /> conducted. ATC evaluated contaminant migration potential of affected soil and groundwater at <br /> the site using the EPA's BIOSCREEN (v.1.4) software program. The results of the computer <br /> modeling indicated the petroleum impacted soil and groundwater at the site do not appear to be <br /> an immediate and significant threat to human health or the environment. The computer modeling <br /> results are presented in ATC's Addendum to Additional Site Evaluation and Request for No <br /> Further Action for Fayette Manufacturing Corporation, dated November 4, 2002. <br /> On April 5 and 8, 2004 an additional subsurface investigation consisting of three Geoprobe soil <br /> borings (GP-1, GP-2 and GP-3) and one cone penetrometer soil boring (CPT-1) were advanced <br /> to evaluate the vertical extent of impacted soil in the vicinity of the former underground storage <br /> �. tanks (USTs) and possible lateral migration of impacted groundwater between wells MW4 and <br /> MW 5. The results were submitted on a Summary Report on Additional Subsurface Investigation <br /> dated August 11, 2004. <br /> S:\Enviromental\17861-Glover\REP0RTS\2005QMR1 andwelIinstal lreport.doc 2 <br /> V <br />
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