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Mr. Trapp <br /> April 2 , 1996 <br /> Page 2 <br /> bearing liquids along or through the Site, possibly from offsite <br /> sources. " <br /> DISC believes that the above statement have been mis-quoted.. <br /> DTSC sent a letter to Mr. Joe Hohenrieder on November 21, 1995 <br /> requesting LCN conduct soil gas sampling in five known and <br /> potential contaminated areas. These five areas are: (1) LCN's <br /> former disposal areas - Areas A, B, and C; (b) the area in and <br /> around the LCN warehouse; (c) the area along Sacramento Street <br /> south of Turner Road; (d) LCN's fc mar chemical drum and tank <br /> storage areas; and (e) other areas of chemical storage or <br /> disposed not previously reported to DTSC. DTSC believes that <br /> LCN's past operations and waste disposal methods may have caused <br /> significant chlorinated solvent contamination in these five <br /> areas. Additionally, DTSC requested that additional <br /> investigation of spent etchant disposed must include pH and other <br /> chemical constituents. <br /> DTSC requires that, at a minimum, the aforementioned five <br /> areas must be included for active soil gas sampling. <br /> 3 . The locations of the sewer system proposed for investigation <br /> must be clarified. <br /> WZI proposes to map the sewer lines using "as built" plans <br /> that are available from the City of Lodi, or private plans that <br /> may be available from the former winery that occupied the Site. <br /> Subsurface mapping using ground penetrating radar and <br /> electromagnetic surveys will be used to map sewer lines. If <br /> required, WZI will release a dye marker agent into the sewer <br /> system to confirm the facility mapping and liquid traveling <br /> paths. <br /> Because WZI mentioned the words "former winery" , DTSC <br /> thereby assumes that the sewer lines WZI proposes to investigate <br /> and map are the sewer lines formerly used by the winery facility <br /> prior to 1970. Therefore, WZI may be proposing to investigate <br /> the sewer lines currently used by LCN (LCN leased the winery <br /> facility in 1970 and purchased the property in 1972) . This sewer <br /> system is on the City of Lodi's map. Additionally, when DTSC <br /> conducted sewer sampling in 1995, DTSC had no problems locating- <br /> the sewer lines and manholes up and downgradient of the LCN <br /> facility and liquid traveling path. Therefore, DTSC fails to see <br /> the merits of conducting any subsurface surveys on the sewer <br /> lines. <br /> DTSC believes that the sewer lines located between LCN <br /> facility and the property formerly occupied by Catalina Swimwear <br /> need subsurface investigation and mapping. These are private <br />