Laserfiche WebLink
San Joaquin County DIRECTOR <br /> Donna Her an, REHS <br /> Environmental Health Department° p . . . . . . . . C <br /> .o p ASSISTANT DIRECTOR <br /> % 600 East Main Street Laurie Cotulla, REHS <br /> W Stockton , California 95202 -3029 <br /> PROGRAM COORDINATORS <br /> s r • Mike Huggins, REHS, RDI <br /> Margaret Lagorio, REHS <br /> Website: www.sjgov. org/ehd Robert McClellon, REHS <br /> 4 � % FOR <br /> Phone: (209) 468-3420 Jeff Carruesco, REHS, RDI <br /> Fax: (209) 464-0138 Kasey Foley, REHS <br /> & I <br /> 08 June 2009 <br /> Messrs. Robert Trommer, CHG , and Kirk Larson , PG <br /> State Water Resources Control Board <br /> Division of Financial Assistance <br /> 1001 1 Street <br /> Sacramento CA 95814 <br /> Subject: EHD Comments on Annual Five-Year Review Various Sites <br /> The San Joaquin County Environmental Health Department (EHD ) has received and reviewed <br /> your draft 5-year review updates on numerous sites and is providing comments on the following <br /> sites : <br /> • 517 W. Fremont Street, Stockton <br /> • 23569 S . Santa Fe Road, Escalon , <br /> • 2315 N . California St, Stockton ; <br /> • 15 E . Grant Line Rd . , Tracy <br /> EHD comments on other sites may be issued at a later time; the EHD comments on your draft <br /> reviews for the above listed sites are as follows : <br /> 517 W. Fremont Street - In your draft letter you note that last year's recommendation was to <br /> initiate groundwater remediation ; this year you recommend site closure although no remediation <br /> has been conducted . The EHD had directed implementation of groundwater remediation and <br /> has set several dates, to no avail as of yet. The EHD had reduced the quarterly monitoring for <br /> all but three wells to biennial sampling and kept three wells on quarterly sampling ; the EHD will <br /> direct further reduction of sampling of the three wells to semi-annual . <br /> The plume of impacted groundwater on the site is delineated , but the EHD believes the <br /> contaminant concentration in well MW-3 to be too high for closure consideration without <br /> remediation. Your letter cites the latest high TPHg and benzene concentrations on the site at <br /> 1 , 100 micrograms per Liter (Ng/L) and 280 pg/L, actually, benzene was present in MW-1 at <br /> 61200 pg/L, and TPHg was present at 40 ,000 pg/L during the November 2008 monitoring event. <br /> The EHD would appreciate your reconsideration of the closure recommendation and will attempt <br /> to get the site into remediation this year and will further reduce the groundwater sampling <br /> requirements . <br /> 23569 S. Santa Fe Road — Your draft letter recommends site closure consideration . During the <br /> last monitoring event (September 2008), the TPHg and benzene concentrations in monitoring <br /> 5-Year Review Comment Letter 0609.doc <br />