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•1 <br /> RAMAGE <br /> ENVIRONMENTAL I I `P r,liCE <br /> Sacramento Office <br /> S�9 AUG _? J'JPost Office Box 869 <br /> Rancho Murieta, CA 95683 <br /> Tel (916) 354-3250 <br /> July 30, 1999 Fax (916) 354-1786 <br /> Mr Harlin Knoll, Sr R E H S <br /> San Joaquin County PHS/EHD <br /> 304 East Weber Avenue, 3`d Floor <br /> Stockton, CA 95202 <br /> Re Letter Report—Monitoring Well Abandonment <br /> Former Fabricare Facility <br /> 711 South San Joaquin Street, Stockton, California <br /> Dear Mr Knoll <br /> Ramage Environmental is pleased to submit this Letter Report, Monitoring Well <br /> Abandonment to the San Joaquin County Public Health Services Environmental Health <br /> Division (PHS/EHD) The wells were abandoned according to Ramage Environmental's <br /> Letter Work Plan, Monitoring Well Abandonment, dated July 6, 1999 The work plan <br />. was approved by PHS/EHD on July 13, 1999 <br /> The subject site is a former textile processing and dying facility located at 711 South San <br /> Joaquin Street in Stockton (San Joaquin County), California(Figure i attached) This <br /> letter report documents the methods and procedures used to abandon three groundwater <br /> monitoring wells located in the northwest portion of the site (Figure 2 attached) <br /> On July 23, 1999, V&W Drilling(C-57 #720904) destroyed the three on-site wells by the <br /> pressure grout method, under PHS/EHD Permit#019836 The work was supervised by <br /> Mr Joseph Ramage, R G of Ramage Environmental and observed by Mr Harlin Knoll, <br /> R E H S of PHS/EHD <br /> Prior to abandoning each well, the depth-to-groundwater and total well depth were <br /> recorded The depth to groundwater ranged from 26 59 to 27 20 feet below the top of the <br /> well casing <br /> V&W Drilling mixed a 20 1 cement bentonite grout in a trailer-mounted cement mixer, <br /> equipped with a grout pump and tremae pipe system The grout was pumped to the <br /> bottom of the wells using a one-inch diameter PVC tremae pipe Pressure was applied <br /> during pumping using a wellhead regulator cap, outfitted with a water release hose <br />• <br />