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(C, <br /> San Joaquin County DIRECTOR <br /> Environmental Health Department Donna Heran,RENS <br /> p ASSISTANT DIRECTOR <br /> 2 <br /> V. 600 East Main Street Laurie Cotulla,REHS <br /> Stockton California 95202-3029 <br /> PROGRAM COORDINATORS <br /> • ; _ Mike Huggins,REHS,RDI <br /> Mararet Foar'�P rio,REHS <br /> Website: www.sjgov.org/ehd RobertM cenon,REHS <br /> Phone: (209)468-3420 ,teff Carruesco,REHS,RDI <br /> Fax: (209)464-0138 Kasey Foley,REHS <br /> June 1, 2009 <br /> Tom Crawshaw <br /> Masonite Corporation <br /> 1955 Powis Road <br /> West Chicago, IL 60185 <br /> Subject: Premdor Site Code: 0001329 <br /> 433 W. Scotts Ave. <br /> Stockton, CA <br /> The San Joaquin County Environmental Health Department (EHD) discussed this site <br /> with the Central Valley Regional Water Quality Control 'Board. The results of the <br /> groundwater samples collected since excavation of the contaminated soil at the site was <br /> performed have declined, the contamination in the soil and groundwater have been <br /> defined and the plume of contaminated groundwater is stable. <br /> If you wish to have your site considered for closure, please provide a closure report <br /> according to the`Central Valley Regional Water Quality Control Board Tri Regional Board <br /> Recommendations and ensure that it includes the following: <br /> 1. A calculation of contaminant mass removed and remaining in both soil and <br /> groundwater. <br /> 2. A prediction of how long (in years) it will be until the dissolved contaminant <br /> concentrations on site reach water quality goals. <br /> 3. A discussion of the potential vapor intrusion threat from the remaining <br /> contamination in both soil and groundwater. <br /> 4. Confirmation that a sensitive receptor survey has been completed for this site. <br /> If you have any questions contact me at (209)468-3449. <br /> Margaret Lagorio, REHS <br /> Program Coordinator <br /> cc: Jim Barton, CVRWQCB <br /> Brian Millman,AGE, 837 Shaw Road, Stockton, CA 95215 <br />