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DDJC-Sharpe EWCAtometer Installation Wor<Plan 5.0 POST-PIEZOMETER 5.4 Data Management INSTALLATION ACTIVITIES 5.4.1 All data collected from location sur y- 5.1 Piezometer Development ing, lithologic logging,piezometer construction, water level measurement, and groundwater Each piezometer will be developed after casing sample analyses under this task order will installation. Piezometer development procedures incorporated into the DDJC-Sharpe/Tracy will follow those outlined in the DDJC-Sharpe/ Environmental Data Management System Tracy Comprehensive Field Work Plan (URS, (EDMS)database. Data receipt,data loadin g, 2001b). Each piezometer will be swabbed and and data quality control will be pelformed under bailed to remove fine sand inside the piezometer a separate task order. casing; swabbing and bailing will continue until fine-grained sediment removed from the 5.4.2 Electronic versions of all documents(i.e., piezometer decreases to less than an estimated CD-ROMs)will be prepared and submitted volume of one ounce of sediment in one bailer according to the procedures described in the load. Piezometer development data recorded will Electronic Document Submittals (#RD-ST- 02) include field determinations of pH,temperature, for the DDJC-Sharpe/Tracy program. specific conductivity,turbidity data, the total number of well volumes purged from the 6.0 REFERENCES piezometer during development, and the average pumping rate during development. URS, 2001a. URS Memorandum,Recomm nda- tion for Monitoring Well Cluster and 5.2 Piezometer Location Surveying Piezometers on Private Properties Vest of DDJC-Sharpe. 17 December. The top of casing elevation will be measured for each of the nine newly installed piezometers URS, 2001b. DDJC- Sharpe/Tracy Compr en- (each of the nine piezometers will be assigned a sive Field Work Plan.February. unique identification number). Horizontal coordinates will be determined to the closest 1.0-foot and referenced to the State Plane Coordinate System,Zone 3,North American Datum of 1983. Ground and top of casing elevations to the closest 0.1-foot and 0.01-foot, respectively, will be obtained at each well. These elevations will be referenced to the National Geodetic Vertical Datum of 1988. 5.3 Groundwater Sample Collection Following piezometer development, water levels will be measured,and samples will be collected from the piezometers as required by the annual monitoring program. Sample collection will be performed in accordance with procedures outlined in the Comprehensive Field Work Plan (URS, 2001b). Samples will be analyzed for volatile organic compounds (U.S.Environ- mental Protection Agency [EPA] Method SW8260B). KAI 2200\Sharpe\EW CC3 Piez WP\EWCC3 WP.dm 5 July 2002