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0 i <br /> San Joaquin County DIRECTOR <br /> Donna Heran, REHS <br /> PQ'UNEnvironmental Health Department ASSISTANT DIRECTOR <br /> c\ 600East Main Street <br /> � Laurie Cotulla, REHS <br /> Q <br /> Stockton, California 95202-3029 PROGRAM COORDINATORS <br /> Mike Huggins, REHS,RDI <br /> Margaret Lagorio, REHS <br /> Website: www.sjgov.org/ehd Robert McClellon, REHS <br /> ��FOR Phone: (209) 468-3420 Jeff Carruesco,REHS, RDI <br /> Fax: (209)464-0138 Kasey Foley,REHS <br /> April 29, 2009 <br /> Stephanie Furgal <br /> Chevron Environmental Management Company <br /> 6111 Bollinger Canyon Road, Room 3652 <br /> San Ramon, CA 94583 <br /> Subject: 437 E. Miner Street <br /> Stockton, CA <br /> The San Joaquin County Environmental Health Department (EHD) has reviewed the "Third <br /> Quarter 2009 Groundwater Monitoring Report' dated March 25, 2009, prepared by ARCADIS <br /> for the above subject site. The EHD recommends further reductions in groundwater sampling <br /> for this site. The EHD directs that groundwater samples be collected and analyzed quarterly <br /> from monitoring wells MW3, MW12, MW13, MW17, MW19, MW20, MW21, NP1-22, NPI-65, <br /> NP2-22 and N132-60. All other site monitoring wells are to have groundwater samples collected <br /> from them and analyzed annually. Analysis for TPH-GRO and BTEX should be performed on <br /> all water samples. Analysis for 1,2-DCA shall be performed on all water samples from MW3, <br /> MW12, MW21 and NP1-22. <br /> In a letter dated December 1, 2008, the EHD agreed that monitoring well U26 should be located <br /> and destroyed. To date there has been no work plan or well permit application for destruction <br /> with permit fees submitted to the EHD. This well has not been accessed for two years. A work <br /> plan, well permit destruction application and fees should be submitted to the EHD by July 1, <br /> 2009. Application to the City of Stockton for an encroachment permit should be submitted by <br /> June 1, 2009. <br /> If you have any questions, please contact me at (209) 468-3449. <br /> Margaret Lagorio, REHS <br /> Program Coordinator <br /> c: Jim Barton, CVRWQCB <br /> David Evans, ARCADIS, 950 Glenn Drive Ste 125, Folsom, CA, 95630 <br />