Wood preservation facilities, alkaline copper quaternary: chapter G, table 3

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Element	Limit value (mg/L)	Basis (objectives)	Agency
Ammonia	Maximum: 0.5 mg/L Maximum: 0.02 mg/L	Protection of human health Protection of aquatic life	International Joint Commission ^Footnotea
	No numerical guidelines (under review)		Health Canada ^Footnoteb^Footnotec
	Fresh water: 0.019 mg/L	Protection of aquatic life	Canadian Council of Ministers of the Environment (CCME) ^Footnoted
DDACB	Fresh water: 0.0015 mg/L Marine: Insufficient data	Protection of aquatic life	CCME ^Footnoted
Copper	Maximum: 0.005 mg/L	Protection of aquatic life	International Joint Commission ^Footnotea
	Aesthetic objectives: < 1.0 mg/L	Protection of human health	Health Canada ^Footnoteb^Footnotec
	0.002 mg/L Hardness 0-60 mg/L as CaCO₃ 0.003 mg/L Hardness 60-120 mg/L as CaCO₃ 0.004 mg/L Hardness 120-180 mg/L as CaCO₃ 0.006 mg/L Hardness > 180 mg/L as CaCO₃	Protection of aquatic life	CCME^Footnoted
Boron	Not determined	Protection of aquatic life	International Joint Commission ^Footnotea
	Interim maximum acceptable concentrations: 5 mg/L	Protection of human health: Guidelines for Canadian Drinking Water Quality	Health Canada ^Footnotee
	Maximum: 2.4 mg/L	Protection of human health: Drinking water quality guidelines	World Health Organization (WHO) ^Footnoteb^Footnotec
	Freshwater Short term 29 mg/L Long term 1.5 mg/L Marine No recommended guideline	Protection of aquatic life	Canadian Council of Ministers of the Environment (CCME) ^Footnoted
	Irrigation Variable upon crops Livestock 5 mg/L	Protection of agriculture	CCME^Footnoted

Footnotes

Footnote a

Recommendations of the International Joint Commission (IJC) to the governments of Canada and the United States, Great Lakes Water Quality Agreement, 1978 (Review 2007).

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Footnote b

Health Canada, Guidelines for Canadian Drinking Water Quality, 2010.

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Footnote c

“Maximum acceptable” was defined by Health Canada as: “Drinking water that contains substances in concentrations greater than these limits is either capable of producing deleterious health effects or is aesthetically objectionable.” “Objective” is defined by Health and Welfare Canada as: “This level is interpreted as the ultimate quality goal for both health and aesthetic purposes.”

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Footnote d

Canadian Council of Ministers of the Environment (CCME) Canadian Environmental Quality Guidelines, Water Quality Guidelines for the Protection of Aquatic Life.

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Footnote e

Guidelines for Drinking-water Quality, Fourth Edition, © World Health Organization 2011. ISBN 978 92 4 154815 1. Table 8.8, Guideline values for naturally occurring chemicals that are of health significance in drinking water, p. 178.

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2017-09-22

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Wood preservation facilities, alkaline copper quaternary: chapter G, table 3

Table 3. Regulatory Limits for Ammonia, Copper and Quat in Natural Water Bodies

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