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STANDARD OPERATING PROCEDURES <br /> Well Installation and Development (continued) <br /> Well development techniques include pumping, bailing, surging, swabbing, jetting, <br /> flushing and air lifting During well development three to ten well volumes are <br /> removed from the well, allowing temperature, pH, specific conductivity and <br /> sediment content of the water to stabilize All development water and rinsate is <br /> collected for temporary storage in labeled 55 gallon containers or proper storage <br /> tanks, and is then disposed of properly depending on chemical analysis results To <br /> assure that cross contamination does not occur between wells during development, <br /> development equipment is either steam cleaned or washed with Alconox and triple <br /> rinsed, twice with tap water and finally with deionized water <br /> Parker Environmental Services 4185 Rialto Court Pittsburg CA 94565-6116 <br /> Phone (510) 439-1024 Fax (510) 439-2566 <br />