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1. (1) In this Regulation, “assessment parameter” means a parameter that is listed in Schedule 2 or 3; “blowdown water” means water that is discharged from a recirculating cooling water system or a boiler system for the purpose of controlling the level of water in the system or for the purpose of discharging from the system materials contained in the system the further build-up of which would impair the operation of the system; “cooling water effluent” means water and associated material that is used in an industrial process for the purpose of removing heat and that has not, by design, come into contact with process materials, but does not include blowdown water; “cooling water effluent monitoring stream” means a cooling water effluent stream on which a sampling point is established under section 8; “cooling water effluent sampling point” means a sampling point established on a cooling water effluent stream under section 8; “Director”, in relation to obligations of a discharger, means a Director appointed under section 5 of the Act and responsible for the region in which the discharger’s plant is located and includes an alternate named by the Director; “discharger” means an owner or person in occupation or having the charge, management or control of a plant to which this Regulation applies; “eight-hour period” means all or part of any period between, (a) midnight and 8 a.m., (b) 8 a.m. and 4 p.m., (c) 4 p.m. and midnight; “existing plant” means a plant that produced metal, metal concentrates or metal-bearing substances before this Regulation comes into force; “limited parameter” means a parameter for which a limit is specified in Column 3 or 4 of Schedule 1; “metal” means antimony, bismuth, cadmium, chromium, cobalt, copper, gold, iron, lead, manganese, mercury, molybdenum, niobium, nickel, palladium, platinum, silver, tantalum, tellurium, thorium, tin, titanium, tungsten, uranium, vanadium or zinc, or any combination thereof; “metal mining plant” means any opening or excavation in, or working of, the ground for the purpose of winning any metal, metal concentrate or metal-bearing substance and includes all associated, (a) ways, works, machinery, buildings or premises below or above the ground, (b) waste disposal sites, wastewater treatment facilities, and (c) roasting or smelting furnaces, refineries, concentrators or mills, wherever located, that are used in connection with washing, crushing, grinding, sifting, reducing, leaching, roasting, smelting, refining or treating of any metal, metal concentrate or metal-bearing substance; “minewater effluent monitoring stream” means a process effluent monitoring stream, (a) that flows from any opening or excavation in, or working of, the ground at the plant for the purpose of winning any metal, and (b) that does not flow from a tailings area or other wastewater treatment facility associated with a tailings area; “new plant” means a plant that begins production of metal, metal concentrates or metal-bearing substances on or after the day on which this Regulation comes into force; “overflow effluent” means effluent discharged from a tailings area through a spillway or other engineered structure designed to protect the tailings area from failure in the event of an extraordinary thaw or storm event; “overflow effluent monitoring stream” means an overflow effluent stream on which a sampling point is established under section 8; “overflow effluent sampling point” means a sampling point established on an overflow effluent stream under section 8; “pick-up”, in relation to a sample, means pick-up for the purpose of storage, including storage within an automatic sampling device, and transportation to and analysis at a laboratory; “process change“ means a change in equipment, production processes, process materials or treatment processes; “process effluent” means, (a) effluent that, by design, has come into contact with process materials other than process materials stored in a materials storage site, including but not limited to a waste rock storage site or a slag storage site, (b) blowdown water, (c) effluent that results from cleaning or maintenance operations at a plant during a period when all or part of the plant is shut down, and (d) any effluent described in clauses (a) to (c) combined with cooling water effluent or storm water effluent; “process effluent monitoring stream” means a process effluent stream on which a sampling point is established under section 8; “process effluent sampling point” means a sampling point established on a process effluent stream under section 8; “process materials”, in relation to a discharger’s plant, means raw materials for use in an industrial process at the plant, manufacturing intermediates produced at the plant, or products or by-products of an industrial process at the plant, but does not include chemicals added to cooling water for the purpose of controlling organisms, fouling and corrosion; “quarter” means all or part of a period of three consecutive months beginning on the first day of January, April, July or October; “Schedule 2 assessment parameter” means a parameter that is listed in Schedule 2; “Schedule 3 assessment parameter” means a parameter that is listed in Schedule 3; “semi-annual period” means all or part of a period of six months beginning on the first day of January or July; “storm water effluent” means run-off from a storm event or thaw that is not used in any industrial process; “tailings area” means an area that is confined by artificial or natural structures or both and that is used for the disposal of finely divided solid waste materials produced as a result of the processing of metal, metal concentrates or metal-bearing substances; “wastewater treatment facility” includes a tailings area.  O. Reg. 560/94, s. 1 (1); O. Reg. 169/96, s. 1. (2) For greater certainty, this Regulation applies both to effluent streams that discharge continuously and to effluent streams that discharge intermittently. (3) An obligation on a discharger to do a thing under this Regulation is discharged if another person has done it on the discharger’s behalf.  O. Reg. 560/94, s. 1 (2, 3). Purpose

2. The purpose of this Regulation is to monitor and control the quality of effluent discharged from the plants to which this Regulation applies.  O. Reg. 560/94, s. 2. Application