ARCHIVED REPORTS_XR0006746 CASE 1

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r Mr Jeffrey Wong November 16, 2000 ' Page 2 One operating municipal well exists within the site vicinity It is located approximately 1,600 feet southwest of the site,on Powers Avenue between Moffat Avenue and Yosemite Avenue Also within the site vicinity,one municipal well and one industrial well have been abandoned The locations of these three wells are shown on the enclosed map The Department of Water Resources(DWR)water well drillers reports for these three wells are also enclosed By interviewing residents,Ramage Environmental identified a total of 56 domestic water wells along Raylow Avenue and Mylnar Avenue, between East Yosemite Avenue to the south and North Street to the north A water well exists on every parcel within this area,except for the residence at 150 Mylnar Avenue Of the 56 parcels with water wells, only 12 are also connected to city water service The remaining 44 parcels utilize groundwater as their sole source of water for household use In general, the residents were not aware of the construction of their wells DWR water well drillers reports were available for only two of these domestic wells(201 Raylow and 126 Mylnar) These enclosed water well drillers reports indicate that these two domestic wells range in total depth from 126 to 140 feet The locations of the 56 identified domestic water wells are shown on the enclosed map,and a list of the addresses with domestic water supply wells is included in the enclosed table Of the 56 domestic water wells, 12 are located within 500 feet of the site As discussed above,the on-site domestic well and the four domestic wells closest to the site were sampled in September 2000 On November 11, 2000,the other 7 domestic wells within 500 feet of the site were sampled All of the water well samples were collected from hose bibs after allowing the water to run for at least 15 10 minutes Water samples were collected and transported in an iced cooler with chain-of-custody documentation to Kiff Kiff analyzed the water samples for TPH-as-gasoline,BTEX, MTBE, DIPS, ETRE,TAME, TBA, and 1,2-DCA by EPA Method 8260B The results of this sampling are pending laboratory analysis All of the domestic well sampling and analysis results, and laboratory reports will be included in the pending report of the cone penetrometer testing and monitoring well installations Thank you for your assistance on this protect If you have questions or need any additional information,please call me at(916)354-3250 Sincerely, RAMAGE ENVIRONMENTAL r - Joseph Ramage,R G Project Geologist r Enclosures CC Mr R Reed Rinehart—Rinehart Distributing, Inc Mr Marty Hartzell—Central Valley RWQCB