Laserfiche WebLink
Decontamination <br /> • Any company owned or rented equipment used for the sampling of ground water (i.e. <br /> pumps, measurement devices, etc.) will be cleaned prior to use. Cleaning will be <br /> accomplished by washing the equipment in a solution of warm water and trisodium <br /> phosphate (TSP) followed by two successive rinses with deionized (DI) water. The <br /> decontamination will occur in the field during and at the completion of each workday. <br /> Decontamination fluid will be discharged to ground with well purge water. <br /> • Purge pumps will be decontaminated between wells by circulating a solution of water <br /> and TSP through the pump, while scrubbing the outside of the pump with a brush. <br /> Purge pumps will be rinsed after decon with DI water. <br />