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Wa I I a c e Ku h I RECEIVED 3251 BeacBouleva d,Suite'00 NMon300 <br /> s a s s o c i a T e s i N c West Sacramento,CA 95691 <br /> MAR 12 2009 916.372.1434 phone <br /> 916.372.2565 fax <br /> March 4, 2009 EN IRONMENT HEALTH ROCKLIN OFFICE <br /> PERMIT/SERVICES 500 Menlo Drive,Suite 100 <br /> Rocklin,CA 95765 <br /> 916.435.9722 phone <br /> 916.435.9822 fax <br /> Mr. Ray von Mile, REHS <br /> San Joaquin County Environmental Health Department SN OFFICE <br /> 3410 West Hammmermer Lane,Suite f <br /> 600 E. Main Street Stockton,CA 95219 <br /> 209.234.7722 phone <br /> Stockton, California 95202-3029 209.234.7727 fax <br /> Direct Push Sampling Work Plan <br /> N. EDISON STREET UNDERGROUND STORAGE TANK REMOVAL AREA <br /> Stockton, San Joaquin County, California <br /> WKA No. 7345.09 <br /> Dear Ray: <br /> On behalf of the City of Stockton Redevelopment Agency,Wallace-Kuhl &Associates, Inc. <br /> (WKA) is providing this work plan to conduct additional sampling in a former underground <br /> storage tank(UST) area related to the redevelopment of the Stockton Promenade property, located <br /> along the southern bank of the Stockton Channel in Stockton, California. During the course of soil <br /> removal activities at the northeastern portion of the Promenade, four previously unidentified <br /> USTs were identified at the northern end of the former Edison Street. This location corresponds <br /> to an unpaved area immediately west of Tuleberg Levee Road, which runs along a portion of the <br /> southern bank of the Stockton Channel adjacent to the Waterfront Towers. <br /> Under the direction of the San Joaquin County Environmental Health Department (SJCEHD <br /> Tank Abandonment Permit No. SR0055962), WKA coordinated the removal of four USTs <br /> between December 2008 and January 2009. WKA also conducted additional step-out <br /> exploratory test pit sampling to evaluate soil conditions in the area surrounding the former USTs. <br /> At the request of Mr. Roberto Cervantes of the Central Valley office of the California Regional <br /> Water Quality Control Board (RWQCB), WKA advanced two of the exploratory test pits (EP-1 <br /> and EP-4) to depths of 15 and 18 feet bgs to collect grab groundwater samples for laboratory <br /> analysis. Because groundwater was not encountered at the maximum depths of these exploratory <br /> test pits (18 feet below ground surface), deeper-interval soil samples were collected instead. <br /> As discussed with Mr. Cervantes, WKA will advance and sample one direct-push GeoProbe soil <br /> boring in this area to an anticipated depth of no more than 25 feet bgs to encounter and sample <br />