Laserfiche WebLink
I��a1V'A <br /> Working To Restore Nature <br />• 1710 Main Street <br /> Escalon, CA 95320 <br /> Phone (209) 838-3507 <br /> FAX (209) 838-3509 <br /> FIELD PROCEDURES <br /> Site Safety Plan <br /> This plan describes the safety requirements for field work performed at the site The site <br /> safety plan is applicable to personnel of RESNA Industries who perform the field work. A <br /> copy of the site safety plan is available for reference by appropriate parties during the work. <br /> The onsite representative of RESNA Industries acts as the Site Safety Officer. <br /> Groundwater Well Purging and Sampling <br /> The static water level in each well was measured to the nearest 0.01 foot with a Solinst electric <br /> water-level sounder cleaned with a laboratory-grade, non-phosphatic detergent and deiomzed <br /> water before use in each well. A clean bailer was used to obtain a sample from the surface of <br /> the water in the well for subjective analysis of hydrocarbons. The sample was retrieved and <br /> visually examined for floating product, sheen, color, and clarity <br /> Approximately 3 well volumes of groundwater were purged from the wells using dedicated <br /> bailers or pump systems All downhole equipment such as pumps, cables, and hoses were <br /> cleaned with a laboratory-grade, non-phosphatic detergent and water before use in each well. <br /> The wells were purged until withdrawal was of sufficient duration to result in stabilized pH, <br /> temperature, and electrical conductivity of the water, as measured by portable meters <br /> calibrated to a standard buffer and conductivity standard. The wells were allowed to recover <br /> to at least 80 percent of the static water level prior to sampling The groundwater purged from <br /> the wells was temporarily stored in 55-gallon liquid waste drums approved for this use by the <br /> Department of Transportation pending results of laboratory analyses The City of Stockton is <br /> responsible for the disposal of the purge water and has contracted to have purge water <br /> removed. <br /> A sample of the formation water then was collected from the surface of the water in each of <br /> the wells with dedicated disposable bailers and slowly transferred to laboratory-cleaned sample <br /> containers. <br /> 38009-10X3QSR94 doc <br />