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OCTOBER 17,2005 NOA PROJECT NUMBER E05131A sample containers. All samples will be stored on ice and transported, under proper chain of custody, to the laboratory for analysis. It is anticipated that samples will be analyzed at Presicion Enviro-Tech, Stockton,California. A log of gauging,purging and sampling activities will be completed for each well by the sampler,using a field report sheet similar to the one included in Appendix A. Quality assurance and quality control(QA/QC) samples (i.e.,field blanks,trip blanks,laboratory blanks) are not anticipated for use during this project, but may be collected if the groundwater professional overseeing sampling activities determines a need for QA/QC sample analysis. Table 1: Analytical Requirements for Groundwater Samples Test Parameter DLR Unit Method Frequency pH H units EPA 150.1 Quarterl Specific Conductance C 1.0 umhos/cm EPA 120.1 Quarterly Total Dissolved Solids 1.00 m /L EPA 160.1 Quarterly Nitrate as N 0.200 m /L EPA 300.0 Quarterly Total Kjeldahl Nitrogen 0.200 m /L EPA 351.2 Quarterly Total Alkalin 1.00 m /L EPA 310.1 Annually Carbonate Alkalin 1.00 m /L EPA 310.1 Annually Bicarbonate Alkalin 1.00 m /L EPA 310.1 Annually Hydroxide Alkalin 1.00 m /L EPA 310.1 Annually Calcium 1.0 m /L EPA 200.7 Annually Chloride 1.00 m /L EPA 300.0 Annually Hardness as CaCO3 6.6 m /L Calc. -Annually Potassium 1.0 m /L EPA 200.7 Annuall Magnesium 1.0 m /L EPA 200.7 Annually Sodium 1.0 m /L EPA 200.7 Annually Sulfate as SO4 1.00 mg/L EPA 300.0 Annuall Boro 100 u /l EPA 200.7 Annuall Ito 50 u /l EPA 200.7 Annuall Notes: (1) Sample containers include one plastic quart bottle per well. DLR-Detection Limit for purposes of reporting 3.1 Evaluation of Analytical Results Quarterly monitoring reports shall be submitted by the end of the first month following the end of the quarter. For example, the first quarter report (January to March) would be submitted by April 30. Those reports shall include all field sampling logs and laboratory analytical report sheets for the most recent monitoring event, a tabular, presentation of cumulative monitoring data (well gauging and analytical results) for each constituent at each monitoring well, a narrative discussion of actual procedures used during the sampling event,maps showing the select analytical results at each well and the hydraulic gradient, and a comparison of analytical results to applicable water quality standards. 6 '-A4