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t } - Harding ESE, Inc. <br /> 10265 Rockingham Drive <br /> i Harding ESE Site150 <br /> Sacramento,CA 95827 <br /> Telephone: 916/364-0793 <br /> A MACTEC COMPANY Fax: 916/364-5633 <br /> Home Page: www.mactec.com <br /> January 3, 2001 <br /> i <br /> f <br /> 52439 1 <br /> Margaret Lagorio, Supervising REHS <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> 304 East Weber <br /> Stockton, California 95202 <br /> Well Destruction Work Plan and Permit Application Re., <br /> i 210,000-gallon UST Removal Project and <br /> Limited Phase H Investigation of Courtyard Tanks and Sump <br /> Newark Sierra Paperboard Mills <br /> 800 West Church Street,Stockton,California Site Code 1063 <br /> ' Dear Ms. Lagorio: <br /> On behalf of Newark Sierra Paperboard Corporation(Newark), Harding ESE(formerly Harding Lawson <br /> Associates (HLA))submits to the San Joaquin County Public Health Services,Environmental Health <br /> Division(PHS/EHD)a work plan,permit application, and permit fees for destruction of four monitoring <br /> wells associated with a 210,000-gallon underground storage tank(UST)formerly located.at the above <br /> referenced Site. The facility(Site) is located at 800 West Church Street in Stockton, California(Plates 1 and <br /> 2)(Site). This work plan and.permit were requested in a December 6,2000 PHS/EHD letter to Newark <br /> which indicated that the four wells must be destroyed prior to issuance of the site closure letter. <br /> BACKGROUND i <br /> In 1998,HLA performed environmental investigations at two areas within the Newark facility. One of these <br /> areas consisted of the two Number 4 6 fuel USTs and an adjacent sump located within the courtyard of main <br /> plant building(Plate 2). The second area consisted of a 210,000-gallon Number 6 fuel oil UST located in the <br /> southeast corner of the Newark facility(Plate 2). The results of these investigations were presented in two <br /> reports entitled Closure Report 210,000-gallon UST Removal Project and Summary Report Limited Phase II <br /> Investigation, Courtyard Tanks and Sump(HLA, 1998a and 1998b). PHS/EHD requested further information <br /> which was submitted in reports entitled Additional Closure Information, Mass Calculations and Compilation <br /> of Monitoring Well Data(HLA, 1999)and Additional Requested.Closure Information 2;000 foot Radius Well <br /> Survey and Physical Search(Harding ESE, 2000). <br /> WORK PLAN FOR WELL DESTRUCTION <br /> s <br /> Destruction of the wells will be performed in accordance with the requirements of San Joaquin County Well <br /> Standards(Section 13.17)and the State of California Well Standards Bulletins 74-81 and 74-90(California <br /> { Department of Water Resources, 1981 and 1991). The four monitoring wells were installed in locations <br />