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Deriving receiving-water based, point-source effluent requirements for Ontario waters

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Title: Deriving receiving-water based, point-source effluent requirements for Ontario waters
Author: Ontario Ministry of the Environment and Energy
Abstract: This report describes the procedures used by the Ontario Ministry of Environment and Energy (MOEE) to establish receiving-water based effluent requirements for point source discharges to surface waterbodies. The procedures are based on the policies contained in Water Management - Policies, Guidelines and Provincial Water Quality Objectives (MOEE. 1994). The Provincial Water Quality Objectives (PWQO) play a major role in the development of effluent limits. Specific PWQO are listed in Water Management. While primary emphasis of this document relates to setting treated effluent discharge limits from point sources of pollution such as industries and sewage treatment plants, it is recognized that other non-point or diffuse sources of pollution - urban, rural and atmospheric, can contribute substantially to water quality degradation and use impairment. Procedures for managing non-point sources of pollution are not addressed in this report. The implementation procedures described in this report support Water Management and provide general direction on a wide range of procedures for determining effluent requirements for Certificates of Approval or other legal documents. The text is not all inclusive, and it is strongly suggested that proponents or their consultants contact the appropriate MOEE Regional Surface Water Assessment staff to determine if additional site specific-conditions would apply to the effluent discharge in question.
Date: 1994
Rights: Queen's Printer for Ontario, Crown Copyright, Non-Commercial Use Permitted
Rights Holder: Queen's Printer for Ontario
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