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<br /> ENVIRONMENTAL HEALTH dEPARTMENT
<br /> SAN JOAQUIN COUNTY
<br /> �* ♦ .s Donna K. Hese, R.E.H.S. Program Coordinators
<br /> Director 304 East Weber Avenue,Third Floor Carl Borgman, R.&ITS.
<br /> Laurie A..Cotaiin,R.E,H.S. Stockton,California 95202-2708 Mike Huggins, R.E.H.S., R.D.I.
<br /> 4 '� A,ssisrant I reCtpr Telephone:(209)468-3420 Margaret Lagorio, K.E.H.S.
<br /> Robert McClellan,it:E..11,S.
<br /> Face: (209)464-0138 Jeff Carruesco, lr.E.H.S.
<br /> i Website:www.sjgovorg/ehd/ Kasey Foley, R.E.H.s.
<br /> RALDIR & AMRIT GREWAL } & , ,. t OJEC 12 2006
<br /> GR»AL'S MARKET t .i���,.��E.1
<br /> 4100 Z S STREET C
<br /> BTOCKTON CA9 5 215
<br /> RE: Grewal's Market SITE CODE: 1574
<br /> 4100 Fremont Street
<br /> Stockton,CA 95215
<br /> San Joaquin County Environmental Health Department (EHD) has reviewed Corte Pen-etration
<br /> Testing Site 1'nvis(igation --April 2006 dated May 330; 2006,prepared and submitted to EHD by
<br /> Advanced GeoEnvirenmental, Inc. (AGE) on your behalf. Based on the results of this cone
<br /> penetration testing(CPT) investigation, AGE:recommends "consideration of the site for low-risk
<br /> closure."
<br /> EHD is aware that groundwater samples collected from borehole. CPT-1. at 76, 85, and 95 feet
<br /> L below ground surface (bgs), and borehole CPT-2 at 59, 80,and 95 feet b.gs were non-detect for
<br /> chemicals of corm (COC). Thereforc, your site is currently under review for closure
<br /> consideration, Of concern is the recent increase in concentration for 1,2-dichloroethane in
<br /> groundwater samples collected £t`oin monitoring well MW`4 during the June 2006 groundwater
<br /> sampling event. EHD is awaiting the analytical results from the third and fourth quarters to
<br /> determine what,action,if any,is needed
<br /> L Central. Valley Regional Water Quality Control Board (CVRWQCB) is requiring evaluation of
<br /> Environntal Screcning Levels(ESLs),California Human.Health Screening Levels (CHHSLs),
<br /> (Sart Francisco Bay Regional Water Quality Control Board) and the potential for vapor intrusion
<br /> into buildings for closure consideration of sites having, residential contamination left in plaec.
<br /> Therefbre, you.need to evaluate,.the threat of vapor intrusion inside the buildings located onsite,
<br /> please submit a wotk plan to EHD by February 14, 2007, to assess the potential for vapor
<br /> L intrusion into the existing onsite buildings, or provide a rational, with technical support, for
<br /> discounting vapor intrusion into the:buildings as a potential hazard for fiiis site.
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<br /> If you have any questions or concerns, please contact Vicki. McCartney by electronic snail at
<br /> artneygdoelyd.ccan or by.telephone--at(2.09)468-3456.
<br /> Donna Horan,REHS1,Director
<br /> Environmental Health Department
<br /> V�ctona L Mo artr y,Senior REH Nuel C.Henderson,.Jr.,PG
<br /> LUP/Site Mitigation Jnit TV Engineering Geologist
<br /> LOP/Site:Mitigation Unit W
<br /> Lc: Tim Cuellar-AGE
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<br /> James L.L.Barton,PG-C'VRWQCB
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