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<br />S Ec0R
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<br />`~- San Joaquin County Public Works Department, Frank Beeler, verbal communication (July
<br />=� 2000)
<br />Sampling of the nearby City of Lodi Municipal Well 12 for petroleum hydrocarbons was initiated
<br />-- in 1996 (San Joaquin Co. Public Works Department, Frank Beeler, verbal communication, July
<br />2000). The well was sampled annually in 1996 and 1997, quarterly during 1998, and monthly in
<br />r} 1999 and 2000. No detectable concentrations of hydrocarbons or fuel oxygenates have been
<br />reported in this well (City of Lodi and G -R).
<br />► , SECOR, Final Remediation Plan (August 25, 2000)
<br />The Final Remediation Plan (FRP) summarized the GWE and SVE interim remediation
<br />` e performed to date, proposed adding EW -2 as a second GWE well, and recommended continued
<br />operation of the existing SVE system.
<br />E SECOR, Aquifer Test Report (March 30, 2001)
<br />Between November 13 and 27, 2000, SECOR conducted an aquifer test to estimate various
<br />aquifer parameters. Based on results from the aquifer pump test, the average transmissivity (T)
<br />and storativity (S) values were approximately 1,497 ft2/day and 0.1, respectively. Assuming a
<br />r. saturated aquifer thickness of 445 ft, hydraulic conductivity of the aquifer is approximately 3.5
<br />ft/day.
<br />SECOR, Problem Assessment Report/Final Remediation Plan Addendum (June 5, 2001)
<br />On June 5, 2005, SECOR prepared a Problem Assessment Report/Final Remediation Plan
<br />n Addendum (PAR/FRP) to document the results of site assessment activities, and to evaluate
<br />potential remedial actions at the site.
<br />The PAR/FRP discussed the drilling of seven soil borings (B4, B6, B8, B9, B10, B11, and MW -
<br />8S), and the installation of nine groundwater monitoring wells (MW -7B, MW -8S, MW -9B, MW -
<br />10C, MW -17B, MW -18B, MW -19C, MW -20A, and MW -20B), and one groundwater extraction
<br />well (EX -3) (Table 1).
<br />Hydrocarbons and fuel oxygenates were not reported in soil samples collected from borings B8
<br />and B4. Hydrocarbons and fuel oxygenates were not reported in B5 at 50 and 82 ft bgs. TPHg,
<br />benzene, ethylbenzene, MtBE, EtBE, and TAME were reported in the soil sample from 58 ft bgs
<br />in B5 at 2.38 mg/kg, 0.805 mg/kg, 0.049 mg/kg, 17.2 mg/kg, 0.647 mg/kg, and 0.229 mg/kg
<br />respectively (Table 4). TPHg, benzene, ethylbenzene, MtBE, EtBE, and TAME were reported in
<br />--- the soil sample from 62-1/2 ft bgs at 1.69 mg/kg, 0.610 mg/kg, 0.0570 mg/kg, 7.53 mg/kg, 0.452
<br />mg/kg, and 0.109 mg/kg respectively.
<br />2.3 Sensitive Receptor Survey
<br />F�� 95775 NFAR REPORT Final.doc 4 SECOR International Incorporated
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