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A <br /> are <br /> T <br /> August 6, 1991 <br /> ARCO Station No. 54 <br /> If no floating product is detected,the wells will be developed with a surge block and pump. <br /> Well development will continue until the discharge water is clear of silt and sand. Clay-size <br /> r sediments derived from the screened portion of the formation cannot be entirely eliminated <br /> by well development. <br /> stabilize, the well will be purged of stagnant water and <br /> After the well has been allowed to <br /> a sample will be collected for laboratory analysis. The well will be purged of approximately <br /> 3 to 5 well volumes of water with a submersible pump, or until pH, conductivity, and <br /> temperature of the purged water have stabilized. Water purged from the wells will be <br /> stored in labeled, 55-gallon, steel drums approved for this use by the Department of <br /> Transportation until suitable disposal options can be selected based on laboratory analysis. <br /> Disposal of drums and purge water is the responsibility of ARCO. <br /> The wells will be allowed to recover to at least 80 percent of static conditions,and a sample <br /> of the formation water will be collected with a Teflon bailer cleaned with a laboratory-grade <br /> detergent and deionized water. The water will be transferred slowly from the bailer to <br /> laboratory-cleaned, Hiter amber bottles and 40-milliliter glass vials for analyses by the <br /> laboratory. The glass vials will contain hydrochloric acid as a preservative. Our geologist <br /> will check to see if headspace is present. If headspace is present, we will collect more <br /> samples until a headspace is absent. Chain of Custody Records will be initiated in the field <br /> by the geologist, updated throughout handling of the samples, and sent along with the <br /> samples to the laboratory. Copies of Chain of Custody Records will be included in our final <br /> report. <br /> 12 <br /> Acs 300(4-4 <br /> i <br />