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Home My WebLink AboutNC0003433_Table 9-1 Recommended Groundwater Monitoring Parameters_20160229TABLE 9-1 RECOMMENDED GROUNDWATER MONITORING PARAMETERS CAPE FEAR STEAM ELECTRIC PLANT DUKE ENERGY PROGRESS, LLC, MONCURE, NC PARAMETER I RL JUNITS IMETHOD FIELD PARAMETERS pH NA SU Field Water Quality Meter Specific Conductance NA µS/cm Field Water Quality Meter Temperature NA 0C Field Water Quality Meter Dissolved Oxygen NA mg/L Field Water Quality Meter Oxidation Reduction Potential NA mV Field Water Quality Meter Turbidity NA NTU Field Water Quality Meter INORGANICS Antimony 1 µg/L EPA 200.8 or 6020A Arsenic 1 µg/L EPA 200.8 or 6020A Barium 5 µg/L EPA 200.7 or 6010C Beryllium 1 µg/L EPA 200.8 or 6020A Boron 50 µg/L EPA 200.7 or 6010C Chromium 1 µg/L EPA 200.7 or 6010C Cobalt 1 µg/L EPA 200.8 or 6020A Hexavalent Chromium 0.03 µg/L EPA 218.7 Iron 10 µg/L EPA 200.7 or 6010C Manganese 5 µg/L EPA 200.8 or 6020A Nickel 1 µg/L EPA 200.7 or 6010C Selenium 1 µg/L EPA 200.8 or 6020A Thallium (low level) 0.2 µg/L EPA 200.8 or 6020A Vanadium 0.3 µg/L EPA 200.8 or 6020A Zinc 5 µg/L EPA 200.7 or 6010C RADIONUCLIDES Radium 226 1 pCi/L EPA 903.1 Modified Radium 228 3 pCi/L EPA 904.0/SW846 9320 Modified Uranium (233, 234, 236, 238) Varies by isotope µg/L SW846 3010A/6020A ANIONS/CATIONS Alkalinity (as CaCO3) 20 mg/L SM 2320B Bicarbonate 20 mg/L SM 2320 Calcium 0.01 mg/L EPA 200.7 Carbonate 20 mg/L SM 2320 Chloride 0.1 mg/L EPA 300.0 or 9056A Potassium 0.1 mg/L EPA 200.7 Sodium 0.05 mg/L EPA 200.7 Sulfate 0.1 mq/L EPA 300.0 or 9056A Total Dissolved Solids 25 mg/L ISM 2540C Total Suspended Solids 2 m L ISM 2450D Prepared by: RKD Checked by: CJS Notes• 1. Select constituents will be analyzed for total and dissolved concentrations. NA indicates not applicable. P:\Duke Energy Progress.1026\103. Cape Fear Ash Basin GW Assess ment\20.EG_CAP\CAP Part 2\Tables\Final\Table 9-1 Recommended Groundwater Monitoring Parameters.xlsx Page 1 of 1