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California Rdkional Water Quality Cbontrol Board <br /> Central Valley Region <br /> ion <br /> ` <br /> Peter M.Rooney Sacramento Main Office Ed J.Schnabel <br /> Secretaryfor IntemetAddress: http://www.swrcb.ca.gov/—rwgcb5 Chair <br /> Environmental 3443 Routier Road,Suite A,Sacramento,Califomia 95827-3003 , <br /> Protection Phone(916)255-3000•FAX(916)255-3015 <br /> 12 November 1998 <br /> Mr. Mark Bradford <br /> Environmental Resources Management <br /> 620 Bercut Drive <br /> Sacramento, CA 95814 <br /> ARCADY DISPOSAL SITE, SAN JOAQUIN COUNTY (Case No. 2794) <br /> I have reviewed your 5 November 1998 letter and proposed workplan for additional investigation at the <br /> Arcady site. I agree that you can only investigate the southern parcel at this time. However,the northern <br /> parcel will need to be addressed when the issues you described are resolved. <br /> The analytical methods proposed in the workplan are generally appropriate. Bicarbonate or alkalinity, <br /> however, should be added to the list for both DI-WET and groundwater samples. In addition, laboratory <br /> detection limits for WET and groundwater samples need to be low enough to compare the results to <br /> applicable water quality standards. Water quality standards based on aquatic life protection, human <br /> health and agricultural use may be lower than the MCL standards shown in the workplan. <br /> If you have any questions, please call me at (916) 255-3131. <br /> STEVE E. ROSENBAUM <br /> Associate Engineering Geologist <br /> SER <br /> cc: Mr. Ron Rowe, Environmental Health Division, San Joaquin County Public Health Services, <br /> Stockton <br /> Mr. Gregory Brown, Bright and Brown, Glendale <br /> California Environmental Protection Agency <br /> 0 Recycled Paper <br />