Laserfiche WebLink
GROUND ZERO <br /> ANALYSIS, INC. <br /> 1172 Kansas Avenue,Suite A <br /> Modesto,CA 95351 <br /> 209.522.4119-PH <br /> 209.522.4227-FAX <br /> groundzeroanalysis.com <br /> August 25, 2014 <br /> Project No. 425.2 <br /> Project Name: George's Service <br /> Ms. Vicki McCartney <br /> San Joaquin County Environmental Health Department <br /> 1868 East Hazelton Avenue <br /> Stockton, CA 95205-6232 <br /> RE: Remedial System Effectiveness &Expansion Work Plan Review <br /> George's Service, 1600 Durham Ferry Road, Tracy, CA <br /> Dear Ms. McCartney <br /> Thank you for your response dated August 22, 2014. As per your requests, Ground Zero <br /> Analysis, Inc. will perform the following: <br /> • Install one air sparging well (AS-7) in the location suggested by EHD and shown on <br /> the attached revised figure. <br /> • Install four vapor extraction wells (VEW-3 through VEW-6) in the location suggested <br /> by EHD and shown on the attached revised figure. <br /> • Advance three soil borings to a total depth of 10 feet below grade. <br /> • An AS/SVE pilot study work plan will be submitted to your office by October 17, <br /> 2014. <br /> • A well and boring permit package is being prepared. <br /> • Vertical gradients will no longer be calculated or reported. <br /> • Bi-monthly O&M of the AS/SVE system will continue. <br /> • Monthly performance and effectiveness monitoring will continue. <br /> • Quarterly groundwater monitoring and sampling that includes an annual event and <br /> three quarterly remedial performance groundwater monitoring events; and semi- <br /> annual reporting of groundwater monitoring and remedial effectiveness data will <br /> continue. <br /> • Field data logs will be included in future reports. <br />