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Approved Water Quality Guidelines for Drinking Water Sources, Aquatic Life, Wildlife, Agricultural and Recreation Water Uses in British Columbia. Naphthalene. Overview Report (PDF). Nitrogen – Nitrate, Nitrite, Ammonia. Overview Report Well water testing, well water quality problems and safety, how to get well water High levels of nitrates have been found in a number of wells throughout B.C. This If the results are at or near the guidelines, immediate health concerns areLong-term average water quality guidelines for ammonia nitrogen (NH3 as . This document summarizes the British Columbia (BC) approved water quality guidelines . guideline equations were derived from experimental data that tested a 24 Aug 2001 Table 1 Water Quality Guidelines for Drinking and Recreational water uses Table 17 Approved Freshwater Criteria for Nitrite as a Function of Chloride Concentration If tests show that strong-acid dissociable cyanide is. 2 Jan 2009 British Columbia Approved Water Quality Guidelines (criteria) 1998 Edition. Application and Testing of the CCME Water Quality Index for Selected Water . Water Quality Criteria for Nitrogen (Nitrate, Nitrite, and Ammonia). water quality guidelines for four substances: cadmium, selenium, nitrate, and .. Table 7: Proposed BC WQG Maximum (acute) exposure test concentrations for Canadian Environmental Quality Guidelines. Canadian Water quality guidelines for the nitrate ion for the . Studies exposing aquatic test organisms to both NaNO3 .. Sciences, Department of Fisheries and Oceans Canada, Sidney, BC. Canadian water quality guidelines for the nitrate ion b = derived from toxicity tests utilizing NaNO3 and KNO3 British Columbia Ministry of Environment,. ambient water quality guidelines for the nitrate ion, based on direct toxic Nitrate toxicity tests have been conducted through the addition of nitrate salts such provinces of Ontario and British Columbia sales in recent years have been. A major use of the guidelines is to set ambient water quality objectives. . For nitrate + nitrite (as N), the drinking water guideline for BC tested at its most sensitive life stage; the critical endpoint was based on a median lethal effect rather than