Chemical Name Chemical Groups CASRN Water Quality Guidelines
for the Protection of Aquatic Life
Freshwater Marine
Concentration
(µg/L)
Short Term
Concentration
(µg/L)
Long Term
Date Concentration
(µg/L)
Short Term
Concentration
(µg/L)
Long Term
Date
Arsenic Inorganic, Metals 7440-38-2 No data 5 1997 No data 12.5 1997
Cadmium Inorganic, Metals 7440-43-9 Equation Equation 2014 NRG 0.12 2014
Lead Inorganic, Metals 7439-92-1 No data Equation 1987 No data No data No data
Mercury Inorganic, Metals 7439-97-6 No data 0.026 2003 No data 0.016 2003
Chemical Name Chemical Groups CASRN Water Quality Guidelines
for the Protection of Agriculture
Irrigation Livestock
Concentration
(µg/L)
Date Concentration
(µg/L)
Date
Arsenic Inorganic, Metals 7440-38-2 100 1997 No data 1997
Cadmium Inorganic, Metals 7440-43-9 5.1 1996 No data 1996
Lead Inorganic, Metals 7439-92-1 200 1987 No data 1987
Mercury Inorganic, Metals 7439-97-6 No data No data No data 1987
Chemical Name Chemical Groups CASRN Sediment Quality Guidelines
for the Protection of Aquatic Life
Freshwater Marine
Concentration
(µg/kg dry weight)
ISQG
Concentration
(µg/kg dry weight)
PEL
Date Concentration
(µg/kg dry weight)
ISQG
Concentration
(µg/kg dry weight)
PEL
Date
Arsenic Inorganic, Metals 7440-38-2 5900 17 000 1998 7240 41 600 1998
Cadmium Inorganic, Metals 7440-43-9 600 3500 1997 700 4200 1997
Lead Inorganic, Metals 7439-92-1 35 000 91 300 1998 30 200 112 000 1998
Mercury Inorganic, Metals 7439-97-6 170 486 1997 130 700 1997
Chemical Name Chemical Groups CASRN Soil Quality Guidelines
for the Protection of Environmental and Human Health
Concentration
(mg/kg dry weight)
Agricultural
Concentration
(mg/kg dry weight)
Residential/ parkland
Concentration
(mg/kg dry weight)
Commercial
Concentration
(mg/kg dry weight)
Industrial
Date
Arsenic Inorganic, Metals 7440-38-2 12 12 12 12 1997
Cadmium Inorganic, Metals 7440-43-9 1.4 10 22 22 1999
Lead Inorganic, Metals 7439-92-1 Table Table Table Table 2025
Mercury Inorganic, Metals 7439-97-6 6.6 6.6 24 50 1999
Chemical Name Chemical Groups CASRN Tissue Residue Quality Guidelines
for the Protection of Widlife Consumer of Aquatic Biota
Concentration
(µg/kg diet wet weight)
Date
Arsenic Inorganic, Metals 7440-38-2 No data No data
Cadmium Inorganic, Metals 7440-43-9 No data No data
Lead Inorganic, Metals 7439-92-1 No data No data
Mercury Inorganic, Metals 7439-97-6 see Methylmercury No data
Chemical Name Chemical Groups CASRN Groundwater Quality Guidelines for the Protection of Environmental and Human Health
Coarse Soil Fine Soil
Concentration
(mg/L)
Agricultural/ Residential
Concentration
(mg/L)
Commercial/ Industrial
Concentration
(mg/L)
Agricultural/ Residential
Concentration
(mg/L)
Commercial/ Industrial
Date
Arsenic Inorganic, Metals 7440-38-2 No data No data No data No data No data
Cadmium Inorganic, Metals 7440-43-9 No data No data No data No data No data
Lead Inorganic, Metals 7439-92-1 No data No data No data No data No data
Mercury Inorganic, Metals 7439-97-6 No data No data No data No data No data