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7-11/stockton 13 <br /> April 1989 <br /> All drill cuttings and equipment rinsate will be <br /> retained in labeled, steel, 55-gallon drums. Drill <br /> cuttings will be retained on site pending laboratory <br /> analyses for legal disposal. Disposal of drill <br /> cuttings will be conducted at a Class III landfill or <br /> by waste haul. Equipment rinsate will be settled in <br /> the 55-gallon drums and subsequently run through the <br /> operating air stripper for disposal. <br /> o After allowing sufficient time for the well seals to <br /> set, the wells will be developed by alternately surging <br /> and pumping until groundwater pumped from the well is <br /> silt-free. All development water will be settled in <br /> 55-gallon drums and run through the air stripper for <br /> legal disposal. <br /> o Following well development, all wells will be sampled <br /> using an EPA-approved TeflonR Sampler. Monitoring <br /> - wells will be purged by hand bailing a minimum of four <br /> well volumes prior to sampling. Samples will be stored <br /> - in 40-milliliter glass VOA vials, labeled, placed on <br /> ice, and transported to GTEL Environmental <br /> Laboratories, Inc. (GTEL) along with a Chain-of-Custody <br /> Manifest in accordance with GTI SOPs 9, 10, 11 and 12 <br /> (Appendix I) . Prior to well development and purging, <br /> all wells will be monitored for depth-to-water and <br /> depth-to-product using an ORS Environmental Equipment <br /> InterfaceR Probe in accordance with GTI SOP 8 (Appendix <br /> I) . Also, the wellhead elevations will be surveyed by <br /> a licensed surveyor to an established benchmark to an <br /> accuracy within 0.01 foot. These data will allow GTI <br /> to produce an accurate base map and groundwater <br /> gradient map. <br /> _ . GROUNDWATER <br /> } TECI N43LIXV.INC. <br />