|
Icy .r
<br /> San Joaquin County DIRECTOR
<br /> a U t h Donna Heran, RENS
<br /> Environmental Health Department
<br /> �• •� ASSISTANT DIRECTOR
<br /> 600 East Main Street Laurie Cotulla, REHS
<br /> Stockton, California 95202-3029
<br /> PROGRAM COORDINATORS
<br /> Mike Huggins,REHS,RDI
<br /> ov.or /ehd Margaret Lagorio,REHS
<br /> Website: www.sjg g
<br /> �ri`oRN Robert McClellon,REHS
<br /> Phone: (209) 468-3420 Jeff Carruesco, REHS, RDI
<br /> Fax: (209) 464-0138 Kasey coley,REHS
<br /> 21 July 2009
<br /> Carl Navarra
<br /> 475 Blewett Road
<br /> Tracy, CA 95376
<br /> Subject: Navarra Property
<br /> 7500 W. Eleventh Street
<br /> Tracy, CA 95376
<br /> By letter dated.29 June 2009, the San Joaquin County Environmental Health Department (EHD)
<br /> had modified tfie monitoring/sampling frequency for the wells utilized for characterizing the
<br /> impact on groundwater resulting from the unauthorized release from your former underground
<br /> storage tank system. The sampling schedule for monitoring well MW-10 was inadvertently
<br /> omitted. To comply with Resolution 2009-0042, recently adopted by the State Water Resources
<br /> Control Board, the following sampling schedule should be implemented:
<br /> • Semi-annuaily — MW-3, MW-4, MW-7, MW-13, MW-19, MWFP-1, MWFP-2, MWFP-3
<br /> and MWFP-4;
<br /> • Annually — MW-2, MW-5, MW-6, MW-10, MW-11, MW-14, MW-17, MW-18, and
<br /> MWFP-5;
<br /> • Biennially— MW-1, MW-8, MW-9, MW-12, MW-15 and MW-16; and
<br /> • Discontinue sampling MW-3A, MW-3B and MW-12A.
<br /> If needed to evaluate the effectiveness of the remediation effort, some wells can be sampled
<br /> more frequently if requested with technical justification. If you have any questions or comments
<br /> you may contact Nuel Henderson, Engineering Geologist at (209) 468-3436.
<br /> Sincerely,
<br /> ��d r -
<br /> r r
<br /> Nuel C. Henderson, Jr., PG Ma ga a agorio, RERS
<br /> Engineering Geologist Program Coordinator
<br /> c: Mr. James Barton, CVRWQCB
<br /> Dr. Dai Watkins, The San Joaquin Company, Inc., 1120 Hollywood Ave., Ste 3, Oakland, CA
<br /> 94602
<br /> Additional Monitoring Frequency Modification tetter 0709
<br />
|