ARCHIVED REPORTS_XR0012601 - Laserfiche WebLink

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RN — _ tom ' F J 4G 44 w n. k 47 ;g If these conditions are mat, the sample will be assigned a unique log number for identification throughout analysis and reporting. The log number will be recorded on the chain-of-custody form and In the legally required log book maintained by the laboratory in the laboratory. The sample desarlption, date received, client's name, and any other relevant information will 2Is0 be recorded. 1. jr' yltl�; 9�t< -. In addition to routine calibration of the analytical instruments with standards and blanks,the analyst Is requlrod to rein dupllcatas and spikes on 10 percent of the analyses to insure an added measure of PrOClsion and accuracy. Accuracy is also verified through the following: 1• U.S. Environmental Protection Agency(EPA)and State certification programs, 2, Participation In an interlaboratory or"round-robin"quality assurance program. 3, Verification of results with an alternative method. For example, calcium may be determined by atomic absorption, ion chromatography, or titrimetric methods. Volatile organics may be determined through either purge and trap or liquid-liquid r extraction methods. To Insure that proper sampling procedures are followed int eh field,one field blank will be collected for every tan ground water samples collected in the field. Procedures for collection of the field .i blank will be Identical to these for collection of the ground water samples, with the exception that _ delunized (or distilled) water will be poured into a laboratory di9ahrge from the bailer to the p { ) ry cleaned, tej.on.bailer and then -i appropriate sample bottle s , Where trace analysis is involved, purity of the solvents, reagents, and aces employed concern. g p Dyed is of great The laboratory maintains a service contract on all major instrumentation; gas chromatograph,atomic absorption, ion chromatography,and total organic carbon analyzers are all serviced and maintained regularly. The above program is more than sufficient for moss needs. Additional quality'ssurance, such as - spikes and duplicates an all analyses, will be provided if requested. —This plea add:asses safer -- - - — -- - - — - y provisions to be employed during the site investigation field work int eh. vicinity of 7700 Moreland Court, Stockton, California. The objective of the plan is to describe I procedures and actions to protect the worker, as.well as uninvolved parties, from inhalation and 4