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0 <br /> October 6, 2004 <br /> NOA Project Number: LE03-034 <br /> The purge water will be tested once for each casing volume removed for basic water quality <br /> parameters including pH, electrical conductivity, and TDS. The water quality meter to be used is a <br /> Ultrameter 6P by Myron L. Company, serial number 616892. The portable meter will require <br /> decontamination between wells. The required meter calibration period for pH is every two weeks <br /> and for TDS is every month. <br /> The well is ready for sampling when all the parameters are within±5 percent on three (3) <br /> consecutive readings. <br /> 5.0 Purge Water Disposal <br /> Since the purge water is not hazardous waste, the purge water will be discarded on the ground <br /> nearby the monitoring well. If any noticeable odors or concerning physical properties are observed <br /> in the ground water sample, the purge water will be stored in 55-gallon drums for further analysis. <br /> 6.0 Analytical Methods and Required Reporting Limits <br /> The following are the proposed analytical methods: <br /> Conventional Chemistry Parameters by APHA/EPA Methods <br /> Test Parameter DLR Unit Method <br /> Total Alkalin 1.00 m /L EPA 310.1 <br /> Carbonate Alkalinity 1.00 m /L EPA 310.1 <br /> Bicarbonate AlkaEnity 1.00 m /L EPA 310.1 <br /> H droyide Alkalin 1.00 m /L EPA 310.1 <br /> Calcium 1.0 m /L EPA 200.7 <br /> ' Chloride 1.00 m /L EPA 300.0 <br /> S ecific Conductance C 1.00 umhos/crn EPA120.1 <br /> Fluoride 1.00 /L EPA 300.0 <br /> Hardness as CaCO3 6.6 m /L Calc. <br /> ' Total Cations 0.20 me /1 Calc. <br /> Total Anions 0.226 me /1 Calc. <br /> Potassium 1.0 m /L EPA 200.7 <br /> ' Medi lene Blue Active Substances 0.0500 m /L EPA 425.1 <br /> Ma esium 1.0 m /L EPA 200.7 <br /> Sodium <br /> 1.0 m /L EPA 200.7 <br /> ' g Nitrate as NO3 1.00 m /L EPA 300.0 <br /> y Nitrate as NO2 0.200 m /L EPA 300.0 <br /> CG H H units EPA 150.1 <br /> Phosphate 0.100 m /L EPA 300.0 <br /> Total Dissolved Solids 1.00 m /L EPA 160.1 <br /> Sulfate as SO4 1.00 m /L EPA 300.0 <br /> Metals by EPA 200 Series Methods <br /> Silica(Si02) 0.200 mg/L EPA 200.7 <br /> 3 <br />