Laserfiche WebLink
• parameters stabilize, which is interpreted to be aquifer water entering the casing. <br /> The well will be allowed to stabilize to about 80% of its initial water level before <br /> sampling. The groundwater sample will be carefully collected with a clean bailer <br /> and poured into the appropriate laboratory pre-cleaned container with minimum <br /> agitation and cascading. <br /> Each water sample will be collected in two one-liter amber unpreserved <br /> glass bottles and one liter plastic nitric acid-preserved bottles. Each water <br /> sample for copper shall also be properly filtered on the field. All samples shall be <br /> properly labeled, logged onto a chain-of-custody form, and placed in a chilled ice <br /> chest on crushed ice to maintain approximately a 4C° (approximately = 38.7 F°) <br /> temperature and shipped to the laboratory. Upon completion of well sampling, <br /> each well will be closed and locked. All purged well water shall be properly <br /> containerized, labeled (see photograph 2), sampled, and analyzed for proper <br /> recycling and disposal at a later time if necessary, <br /> v : <br /> d h' <br /> Photograph 2-Purge Water Containers to be Properly Labeled and Closed Pending Lab Analysis <br /> VII. Chemical Analysis <br /> Four (4) groundwater samples will be analyzed at a State certified <br /> analytical laboratory for the following, Polynuclear Aromatic Hydrocarbons and <br /> total Copper using EPA Methods 8270A and 60106 respectively. The analysis <br /> will be performed at Precision Environmental Laboratory (PET), a state certified <br /> analytical laboratory, located in Stockton, CA. The analyses will be performed on <br /> a "normal' turnaround time of five to ten working days. <br /> VIII. Report <br /> A monitoring well sampling report will be prepared. The report will include <br /> the monitoring well purge and sampling forms, chain-of-custody forms, <br /> . groundwater contour flow map, and a discussion of the sampling, groundwater <br /> flow and chemical data. <br /> 7 <br />