Common use of DETECTION LIMITS Clause in Contracts

DETECTION LIMITS. Provided below is a list of maximum acceptable reporting limits and units for various constituents in aqueous and sediment matrices. Contractor may not deviate from maximum acceptable reporting limits without approval of County. Contractor must provide laboratory and electronic data report (EDR) results in the units specified in the following table. Contractor must provide reasonable explanation for alternate proposed reporting limits. Aqueous Samples Reporting Limit AND Units Na, Mg, K, Ca 1.0 mg/L SO4, Cl, HCO3, CO3 1.0 mg/L SO4 in Rainwater 0.5 mg/L F 0.1 mg/L B 0.1 mg/L Nitrite + Nitrate as NO3 0.4 mg/L NH3 as N 0.1 mg/L TKN 0.2 mg/L Total Phosphorus as PO4 0.06 mg/L Orthophosphate as P 0.02 mg/L SiO2 0.5 mg/L Total Non-filterable Residue 5.0 mg/L Volatile Non-filterable Residue 5.0 mg/L Total Filterable Residue 5.0 mg/L Ag, Cd, Cr, Cu, Ni, Pb, Sb in freshwater 0.5 ug/L As, Se, in freshwater 0.4 ug/L Tl,in freshwater 0.2 ug/L Hg in freshwater 0.01 ug/L Zn in freshwater 2 ug/L Fe, Mn in freshwater 5 ug/L Ag, As, Be, Cd, Cr, Cu, Fe, Ni, Pb, Se, Sb, Tl, Zn, in seawater 0.05 ug/L Hg in seawater 0.5 ng/L Oil & Grease 5 mg/L MBAS 0.1 mg/L Organochlorine Pesticides (except Toxaphene) 2 ng/L Toxaphene 20 ng/L PCB Congeners 2 ng/L PCB Arochlors 20 ng/L Organophosphate Pesticides 5 ng/L Carbaryl in freshwater 2 ug/L Pyrethroid Pesticides in freshwater 2 ng/L Fipronil Insecticides 5 ng/L Organochlorine Pesticides (except Toxaphene) 2 ug/kg Toxaphene 20 ug/kg PCB Congeners 2 ug/kg PCBs (arochlors) 20 ug/kg Pyrethroid Pesticides 5 ug/kg Fipronil Insecticides 5 ug/kg PAHs 2 ug/kg Cadmium 0.05 mg/kg Copper 0.05 mg/kg Chromium (total) 0.05 mg/kg Lead 0.05 mg/kg Mercury 0.05 mg/kg Nickel 0.05 mg/kg Selenium 0.05 mg/kg Silver 0.05 mg/kg Zinc 0.05 mg/kg

DETECTION LIMITS. Provided below is a list of maximum acceptable reporting limits and units for various constituents in aqueous and sediment matrices. Contractor may not deviate from maximum acceptable reporting limits without approval of County. Contractor must provide laboratory and electronic data report (EDR) results in the units specified in the following table. Contractor must provide reasonable explanation for alternate proposed reporting limits. Aqueous Samples Reporting Limit AND Units Na, Mg, K, Ca 1.0 mg/L SO4XX0, ClXx, HCO3XXX0, CO3 XX0 1.0 mg/L SO4 in Rainwater 0.5 mg/L F 0.1 mg/L B 0.1 mg/L Nitrite + Nitrate as NO3 0.4 mg/L NH3 as N 0.1 mg/L TKN 0.2 mg/L Total Phosphorus as PO4 0.06 mg/L Orthophosphate as P 0.02 mg/L SiO2 0.5 mg/L Total Non-filterable Residue 5.0 mg/L Volatile Non-filterable Residue 5.0 mg/L Total Filterable Residue 5.0 mg/L AgXx, CdXx, CrXx, CuXx, NiXx, PbXx, Sb Xx in freshwater 0.5 ug/L As, Se, in freshwater 0.4 ug/L Tl,in freshwater 0.2 ug/L Hg in freshwater 0.01 ug/L Zn in freshwater 2 ug/L Fe, Mn in freshwater 5 ug/L Ag, As, Be, Cd, Cr, Cu, Fe, Ni, Pb, Se, Sb, Tl, Zn, in seawater 0.05 ug/L Hg in seawater 0.5 ng/L Oil & Grease 5 mg/L MBAS 0.1 mg/L Organochlorine Pesticides (except Toxaphene) 2 ng/L Toxaphene 20 ng/L PCB Congeners 2 ng/L PCB Arochlors 20 ng/L Organophosphate Pesticides 5 ng/L Carbaryl in freshwater 2 ug/L Pyrethroid Pesticides in freshwater 2 ng/L Fipronil Insecticides 5 ng/L Organochlorine Pesticides (except Toxaphene) 2 ug/kg Toxaphene 20 ug/kg PCB Congeners 2 ug/kg PCBs (arochlors) 20 ug/kg Pyrethroid Pesticides 5 ug/kg Fipronil Insecticides 5 ug/kg PAHs 2 ug/kg Cadmium 0.05 mg/kg Copper 0.05 mg/kg Chromium (total) 0.05 mg/kg Lead 0.05 mg/kg Mercury 0.05 mg/kg Nickel 0.05 mg/kg Selenium 0.05 mg/kg Silver 0.05 mg/kg Zinc 0.05 mg/kg