Laserfiche WebLink
M <br /> Advanced <br /> GeoEnvironmental , Inc . - - - <br /> 03 August 1999 <br /> AGE-NC Project No. 95-0121 <br /> Mr. Mike Infurna <br /> San Joaquin County Public Health Services - Environmental Health Division <br /> 304 East Weber Avenue, Third Floor <br /> Stockton, CA 95202 <br /> Subject: Additional Remedial Investigation/Feasibility Study Work Plan <br /> Nomellini Construction Co. - 1045 West Charter Way, Stockton, California <br /> Dear Mr. Infurna: <br /> At the request of Mr. Dante John Nomellini of Nomellini Construction Co. , Advanced <br /> GeoEnvironmental, Inc. (AGE) has prepared this work plan addendum for additional remedial <br /> investigation/feasibility studies at 1045 West . Charter Way (site). The proposed work plan for <br /> additional remedial investigation/feasibility study is being prepared to address increasing ground <br /> water elevations at the site that have submerged the core of the adsorbed petroleum hydrocarbon- <br /> impacted soil plume. <br /> Hydrocarbon-impacted soil and ground water has been characterized on the site. A soil vapor <br /> extraction (SVE) pilot test was performed at the site in August 1995 ; the results of the SVE pilot test <br /> indicated that SVE would be favorable to remediate the petroleum hydrocarbon-impact in the vadose <br /> zone at the site. No additional remedial feasibility studies have been performed at the site due to the <br /> favorable SVE/AS pilot test results. <br /> The results of the SVE pilot test were submitted in a corrective action plan dated 14 November 1995 <br /> to the PHS-EHD that proposed SVE in conjunction with air sparging (AS) as the most effective <br /> means of addressing soil and ground water petroleum hydrocarbon-impact at the site. The PHS-EHD <br /> concurred by letter dated 06 June 1996 with AGE' s recommendations that SVE and AS could <br /> effectively remediate petroleum-hydrocarbon impacted soil and ground water at the site. <br /> However, ground water elevation has risen approximately 10 to 15 feet since August 1995, thus <br /> increasing the interval thickness of impacted soil in the saturated zone and reducing the volume of <br /> impacted soil in the vadose zone, where SVE is most effective. These changes are anticipated to have <br /> 1 profoundly affected the site response to SVE and AS . <br /> 1 <br /> 3315 E. Miraloma Avenue, Suite 117, Anaheim, California 92806 - <br /> Telephone (714) 996-5151 FAX (714) 996-5182 <br /> jf <br /> I , <br />