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----------- ------ <br /> Messrs Larson and Trommer June 3, 2010 <br /> April and May 2010 Draft Five-Year Review Page 2 of 2 <br /> Recommendation <br /> Various Sites <br /> 1301 W. Kettleman Road, Lodi, CA; Claim Number 13578: You recommend that the EHD <br /> direct the RP to assess an alternative (additional) remedial technology to achieve water quality <br /> objectives (WQOs) in a timely manner. SVE has been completed and GWE is in progress <br /> utilizing two extraction wells,. One well is cleaning up. The EHD will issue a directive letter to <br /> evaluate additional technologies to accelerate the cleanup. <br /> '_3430_S7 EI Dorado St., Stockton, CA; Claim Number 1878:: You recommended active <br /> remediation continue and that remediation data be uploaded to GeoTracker. The recent <br /> groundwater monitoring report includes information on the SVE operation; the groundwater <br /> monitoring lab data has been recently uploaded to GeoTracker. PID readings of vapor samples <br /> taken during operation and maintenance events are included in the groundwater monitoring <br /> report, but the report does not contain analytical data for vapor sample. The EHD will direct that <br /> all appropriate analytical data be uploaded to GeoTracker if not already completed. <br /> 1140 W. Hammer Lane, Stockton, CA; Claim Number 854: You recommended that the EHD <br /> issue a directive letter to the RP to assess remediation technologies and-to implement active <br /> remediation to achieve WQOs in a timely manner; the EHD has such a letter in preparation. <br /> Questions or comments should be directed to Harlin Knoll at (209) 468-3442 or to Nuel <br /> Henderson at (209)468-3436. <br /> Sinc rely, <br /> Harlin Knoll, R S Nuel Henderson, PG <br /> Senior Registered Environmental Engineering Geologist <br /> Health Specialist <br /> April and May 2010 Annual 5-year Reviews HK Sites.doc <br />