ARCHIVED REPORTS_XR0004840 - Laserfiche WebLink

Home Browse Search

2-9 stainless steel bailers The stainless steel bailers were laboratory-decontammated prior to use in the following manner ' • Washed with Alconoe • Rinsed with potable water • Rinsed with deioruzed water • Rinsed with 10 percent by volume nitric acid solution • Rmsed with deiomzed water + Rinsed with hexane • Rinsed with deionized water • Aar dried • Wrapped in alummum foil ' Ground water samples were placed in umquely labeled, laboratory-prepared sample con- tainers The sample identification system used was similar to that used during the soil sam- pling Upon collection, each sample was placed in a cooler and chilled Cham-of-custody forms accompanied the samples which were shipped via overnight couner to the subcon- tracted analytical laboratory for analysis Ground water samples collected during the uutial Phase II Investigation were analyzed for total (unfiltered) concentrations of the eight RCRA metals, TCL VOCs (which includes BIMX), ammoma, and hexavalent chromium Ground water samples collected during the supplemental Phase II Investigation were submitted for ' analyses of TPH-purgeable fuels as gasoline, total (unfiltered) lead, and TCL VOCs Two water supply wells (southern and northern) are present at the site and are spaced ap- proximately 30 feet apart (Figure 3) The reported total depth of construction for the south- ern supply well is 180 feet and for the northern supply well is 120 feet The southern supply ' well was installed imtmUy at the site When screen integrity problems were suspected in the southern supply well, the northern supply well was installed The southern supply well is ' currently functional to 100 feet. Both supply wells have submersible pumps reportedly set at 100 feet The northern supply well is the primary source The southern supply well only ' operates during penods of high water use. 29025 I ' REALISTIC SOLUTIONS FOR HAZARDOUS WASTE PROBLEMS