Parameter Units Detection Precision Calibration Method Container Holding Number Limits Method Reference Type Time of bottles sampled Total ICP-MS scan μg/L See below RPD Limit = 15 EPA 200.8, SW 1 x 125mL 14 days if metals 6020 HDPE plastic or (see below) container HN03 or 180 days if preserved Total Mercury by μg/L MD = 0.062, PQ RPD Limit = 15 EPA 245.1, SW 1 x 125mL 14 days if mercury cold vapor = 0.2 7470A HDPE plastic or container HN03 or 28 days if preserved BTEX GC/ECD μg/L MD = 0.62 RPD Limit = 20 SW 8021B 3 x 40mL vials HCI 14 days (except benzene 0.2) Laboratory calibration PQ = 2 (except blanks & benzene 0.5) standards; DRO GC/FID mg/L MD = 0.06, PQ = RPD Limit = 20 AK 102 None 14 days initial 0.3 calibration verification / quality control sample Hardness Calculation mg/L Calculation Calculation N/A Calculation 1 x 125mL 14 days if CaCO3 HDPE plastic or container HN03 or 180 days if preserved
Parameter Units Detection Limits Precision Calibration Method Method Reference Container Type Holding Time Number of bottles sampled Total metals (see below) ICP-MS scan μg/L See below RPD Limit = 15 Laboratory calibration blanks & standards; initial calibration verification / quality control sample EPA 200.8, SW 6020 1 x 125mL HDPE plastic container or HN03 14 days if or 180 days if preserved Total mercury Mercury by cold vapor μg/L MD = 0.062, PQ = 0.2 RPD Limit = 15 EPA 245.1, SW 7470A 1 x 125mL HDPE plastic container or HN03 14 days if or 28 days if preserved BTEX GC/ECD μg/L MD = 0.62 (except benzene 0.2) PQ = 2 (except benzene 0.5) RPD Limit = 20 SW 8021B 3 x 40mL vials HCI 14 days DRO GC/FID mg/L MD = 0.06, PQ = 0.3 RPD Limit = 20 AK 102 None 14 days Hardness Calculation mg/L CaCO3 Calculation Calculation N/A Calculation 1 x 125mL HDPE plastic container or HN03 14 days if or 180 days if preserved
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