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
Aluminium Inorganic, Metals 7429-90-5 No data Variable 1987 No data No data No data
Antimony Inorganic, Metals 7440-36-0 No data No data No data No data No data No data
Arsenic Inorganic, Metals 7440-38-2 No data 5 1997 No data 12.5 1997
Barium Inorganic, Metals 7440-39-3 No data No data No data No data No data No data
Cadmium Inorganic, Metals 7440-43-9 Equation Equation 2014 NRG 0.12 2014
Calcium Inorganic, Metals 7440-70-2 No data No data No data No data No data No data
Chloride Inorganic 16887-00-6 640,000 µg/L or 640 mg/L 120,000 µg/L or 120 mg/L 2011 NRG NRG 2011
Chromium (total) Inorganic, Metals 7440-47-3 No data No data No data No data No data No data
Cobalt Inorganic, Metals 7440-48-4 No data No data No data No data No data No data
Conductivity Physical No data No data No data No data No data No data No data
Copper Inorganic, Metals 7440-50-8 No data Equation 1987 No data No data No data
Dissolved oxygen Inorganic No data No data Variable 1999 No data >8000 & Narrative 1996
Iron Inorganic, Metals 7439-89-6 No data 300 1987 No data No data No data
Lead Inorganic, Metals 7439-92-1 No data Equation 1987 No data No data No data
Lithium Inorganic, Metals 7439-93-2 No data No data No data No data No data No data
Manganese Inorganic, Metals 7439-96-5 Equation Variable 2019 No data No data No data
Nickel Inorganic, Metals 7440-02-0 No data Equation 1987 No data No data No data
Nitrate Inorganic, Inorganic nitrogen compounds 14797-55-8 550,000 µg/L or 550 mg/L 13,000 µg/L or 13 mg/L 2012 1,500,000 µg/L or 1500 mg/L 200,000 µg/L or 200 mg/L 2012
pH Inorganic, Acidity, alkalinity and ph No data No data 6.5 to 9.0 1987 No data 7.0 to 8.7 & Narrative 1996
Phosphorus Inorganic 7723-14-0 No data Guidance Framework 2004 No data Guidance Framework 2007
Sulphate Inorganic, Inorganic sulphur compounds 18785-72-3 No data No data No data No data No data No data
Temperature Physical, Temperature No data No data Narrative 1987 No data Narrative 1996
Uranium Inorganic, Metals 7440-61-1 33 15 2011 NRG NRG 2011
Vanadium Inorganic, Metals 7440-62-2 No data No data No data No data No data No data
Zinc Inorganic, Metals 7440-66-6 Equation Equation 2018 Not assessed Not assessed 2018
Chemical Name Chemical Groups CASRN Water Quality Guidelines
for the Protection of Agriculture
Irrigation Livestock
Concentration
(µg/L)
Date Concentration
(µg/L)
Date
Aluminium Inorganic, Metals 7429-90-5 5,000 1987 No data 1987
Antimony Inorganic, Metals 7440-36-0 No data No data No data No data
Arsenic Inorganic, Metals 7440-38-2 100 1997 No data 1997
Barium Inorganic, Metals 7440-39-3 No data No data No data No data
Cadmium Inorganic, Metals 7440-43-9 5.1 1996 No data 1996
Calcium Inorganic, Metals 7440-70-2 No data No data No data 1987
Chloride Inorganic 16887-00-6 Variable 1987 No data No data
Chromium (total) Inorganic, Metals 7440-47-3 No data No data No data No data
Cobalt Inorganic, Metals 7440-48-4 50 1987 No data 1987
Conductivity Physical No data No data No data No data No data
Copper Inorganic, Metals 7440-50-8 Variable 1987 No data 1987
Dissolved oxygen Inorganic No data No data No data No data No data
Iron Inorganic, Metals 7439-89-6 5000 1987 No data No data
Lead Inorganic, Metals 7439-92-1 200 1987 No data 1987
Lithium Inorganic, Metals 7439-93-2 2500 1987 No data No data
Manganese Inorganic, Metals 7439-96-5 200 1987 No data No data
Nickel Inorganic, Metals 7440-02-0 200 1987 No data 1987
Nitrate Inorganic, Inorganic nitrogen compounds 14797-55-8 No data No data No data No data
pH Inorganic, Acidity, alkalinity and ph No data No data No data No data No data
Phosphorus Inorganic 7723-14-0 No data No data No data No data
Sulphate Inorganic, Inorganic sulphur compounds 18785-72-3 No data No data No data 1987
Temperature Physical, Temperature No data No data No data No data No data
Uranium Inorganic, Metals 7440-61-1 10 1987 No data 1987
Vanadium Inorganic, Metals 7440-62-2 100 1987 No data 1987
Zinc Inorganic, Metals 7440-66-6 Equation 1987 No data 1987