CHAPTER 445A - WATER CONTROLS

NAC 445A.077 “Commission” defined. (NRS 445A.425) “Commission” means the State Environmental Commission. [Environmental Comm’n, Water Pollution Control Reg. § 1.5, eff. 5-2-78; A and renumbered as § 1.4, 1-25-79]—(Substituted in revision for NAC 445.075)

NAC 445A.078 “Complete treatment” defined. (NRS 445A.425) “Complete treatment” means that degree of treatment which is required to continuously produce water which meets the standards for drinking water of the State Board of Health. [Environmental Comm’n, Water Pollution Control …

NAC 445A.079 “Conventional treatment” defined. (NRS 445A.425) “Conventional treatment” means processes such as coagulation, sedimentation, filtration and disinfection. The term does not include desalting techniques. [Environmental Comm’n, Water Pollution Control Reg. § 1.7, eff. …

NAC 445A.080 “Department” defined. (NRS 445A.425) “Department” means the State Department of Conservation and Natural Resources. [Environmental Comm’n, Water Pollution Control Reg. § 1.8, eff. 5-2-78; A and renumbered as § 1.7, 1-25-79]—(Substituted in revision for NAC 445.078)

NAC 445A.081 “Director” defined. (NRS 445A.425) “Director” means the Director of the Department or the Director’s designee. [Environmental Comm’n, Water Pollution Control Reg. § 1.9, eff. 5-2-78; A and renumbered as § 1.8, 1-25-79]—(Substituted in revision for NAC 445.079)

NAC 445A.082 “Discharge” defined. (NRS 445A.425) “Discharge” has the meaning ascribed to it in NRS 445A.345. [Environmental Comm’n, Water Pollution Control Reg. § 1.10, eff. 5-2-78; A and renumbered as § 1.9, 1-25-79]—(Substituted in revision for NAC 445.080)

NAC 445A.083 “Disinfection” defined. (NRS 445A.425) “Disinfection” means the destruction or inactivation of disease-producing organisms. [Environmental Comm’n, Water Pollution Control Reg. § 1.11 eff. 5-2-78; A and renumbered as § 1.10, 1-25-79]—(Substituted in revision for NAC 4…

NAC 445A.084 “Division” defined. (NRS 445A.425) “Division” has the meaning ascribed to it in NRS 445A.350. [Environmental Comm’n, Water Pollution Control Reg. § 1.11, eff. 1-25-79]—(Substituted in revision for NAC 445.082)

NAC 445A.0845 “E. coli” defined. (NRS 445A.425) “E. coli” means Escherichia coli. (Added to NAC by Environmental Comm’n by R099-02, eff. 12-17-2002)

NAC 445A.085 “Effluent limitation” defined. (NRS 445A.425) “Effluent limitation” has the meaning ascribed to it in NRS 445A.355. [Environmental Comm’n, Water Pollution Control Reg. § 1.12, eff. 5-2-78; A 1-25-79]—(Substituted in revision for NAC 445.083)

NAC 445A.086 “Filtration” defined. (NRS 445A.425) “Filtration” means a physical-chemical process for removing suspended and colloidal impurities from water by passage through a porous medium by the following mechanisms: Absorption, flocculation, sedimentation and straining. [Envi…

NAC 445A.0865 “Flow weighted annual average concentration” defined. (NRS 445A.425) “Flow weighted annual average concentration” means a value calculated by: 1. Multiplying, not more than once each day during a 365-day period, the concentration of pollutants present in a sample of…

NAC 445A.087 “Individual sewage disposal system” defined. (NRS 445A.425) “Individual sewage disposal system” means a system of sewage treatment tanks or tank and effluent absorption or percolation facilities serving a single dwelling or structure. [Environmental Comm’n, Water Pol…

NAC 445A.088 “Industrial user” defined. (NRS 445A.425) “Industrial user” means any industry identified in the Standard Industrial Classification Manual, published by the United States Bureau of the Budget, under the category “Division D-Manufacturing” and the other classes of sig…

NAC 445A.089 “Industrial wastes” defined. (NRS 445A.425) “Industrial wastes” means wastes resulting from any process of industry, manufacturing, trade or business, or from the development or recovery of any natural resources. [Environmental Comm’n, Water Pollution Control Reg. § …

NAC 445A.090 “Interstate agency” defined. (NRS 445A.425) “Interstate agency” has the meaning ascribed to it in NRS 445A.370. [Environmental Comm’n, Water Pollution Control Reg. §§ 1.16-1.16.2, eff. 5-2-78; A 1-25-79]—(Substituted in revision for NAC 445.088)

NAC 445A.091 “Law” defined. (NRS 445A.425) “Law” means NRS 445A.300 to 445A.730, inclusive. [Environmental Comm’n, Water Pollution Control Reg. § 1.17, eff. 5-2-78; A 1-25-79]—(Substituted in revision for NAC 445.089)

NAC 445A.092 “Minor discharge” defined. (NRS 445A.425) “Minor discharge” means any discharge which: 1. Has a total volume of less than 50,000 gallons on every day of the year; 2. Does not affect the waters of any other state; and 3. Is not identified by the Director, the Regional…

NAC 445A.093 “Municipality” defined. (NRS 445A.425) “Municipality” has the meaning ascribed to it in NRS 445A.375. [Environmental Comm’n, Water Pollution Control Reg. §§ 1.19-1.19.2, eff. 5-2-78; A 1-25-79]—(Substituted in revision for NAC 445.091)

NAC 445A.094 “NPDES” defined. (NRS 445A.425) “NPDES” means the National Pollutant Discharge Elimination System, which is the national system for the issuance of permits under section 402 of the Act. [Environmental Comm’n, Water Pollution Control Reg. § 1.20, eff. 5-2-78; A 1-25-7…

NAC 445A.095 “Natural waters” defined. (NRS 445A.425) “Natural waters” means waters which have not been degraded or enhanced by actions attributable to humans. [Environmental Comm’n, Water Pollution Control Reg. § 1.21, eff. 5-2-78; A 1-25-79]—(Substituted in revision for NAC 445…

NAC 445A.096 “New source” defined. (NRS 445A.425) “New source” means any source, the construction of which is commenced after the publication of proposed regulations prescribing a standard of performance under section 306 of the Act which will be applicable to the source if the s…

NAC 445A.097 “Origin” defined. (NRS 445A.425) “Origin” means all waters tributary to those waters being classified and are considered a part of the waters being classified unless otherwise designated. [Environmental Comm’n, Water Pollution Control Reg. § 1.23, eff. 5-2-78; A 1-25…

NAC 445A.098 “Permit” defined. (NRS 445A.425) “Permit” means a written authorization to discharge pollutants into the waters of the State in accordance with the Act, the law and the regulations promulgated thereunder. [Environmental Comm’n, Water Pollution Control Reg. § 1.24, ef…

NAC 445A.099 “Person” defined. (NRS 445A.425) “Person” has the meaning ascribed to it in NRS 445A.390. [Environmental Comm’n, Water Pollution Control Reg. §§ 1.25-1.25.2, eff. 5-2-78; A 1-25-79]—(Substituted in revision for NAC 445.097)

NAC 445A.100 “Point source” defined. (NRS 445A.425) 1. “Point source” has the meaning ascribed to it in NRS 445A.395. 2. The term includes wheeled, track, stationary or floating equipment used for earth-moving activity from which pollutants are or may be discharged. [Environmenta…

NAC 445A.101 “Pollutant” defined. (NRS 445A.425) “Pollutant” has the meaning ascribed to it in NRS 445A.400. [Environmental Comm’n, Water Pollution Control Reg. §§ 1.27-1.27.2, eff. 5-2-78; A 1-25-79]—(Substituted in revision for NAC 445.099)

NAC 445A.102 “Pollution” defined. (NRS 445A.425) “Pollution” has the meaning ascribed to it in NRS 445A.405. [Environmental Comm’n, Water Pollution Control Reg. § 1.28, eff. 5-2-78; A 1-25-79]—(Substituted in revision for NAC 445.100)

NAC 445A.103 “Pretreatment program” defined. (NRS 445A.425) “Pretreatment program” means the general pretreatment regulations for existing and new sources of pollution as set forth in 40 C.F.R. §§ 403 et seq. [Environmental Comm’n, Water Pollution Control Reg. § 1.43, eff. 10-26-…

NAC 445A.104 “Pretreatment standards” defined. (NRS 445A.425) “Pretreatment standards” means the standards promulgated under section 307(b) of the Act. [Environmental Comm’n, Water Pollution Control Reg. § 1.29, eff. 5-2-78; A 1-25-79]—(Substituted in revision for NAC 445.102)

NAC 445A.106 “Regional Administrator” defined. (NRS 445A.425) “Regional Administrator” means the Regional Administrator of the United States Environmental Protection Agency, Region IX. [Environmental Comm’n, Water Pollution Control Reg. § 1.31, eff. 5-2-78; A 1-25-79]—(Substitute…

NAC 445A.107 “Sewage” defined. (NRS 445A.425) 1. “Sewage” means the water-carried human or animal waste from residences, buildings, industrial establishments, feedlots or other places, together with such groundwater infiltration and surface water as may be present. 2. The term in…

NAC 445A.108 “Source” defined. (NRS 445A.425) “Source” means any building, structure, facility or installation from which there is or may be the discharge of pollutants. [Environmental Comm’n, Water Pollution Control Reg. § 1.33, eff. 5-2-78; A 1-25-79]—(Substituted in revision f…

NAC 445A.109 “Standard of performance” defined. (NRS 445A.425) “Standard of performance” means a standard for the control of the discharge of pollutants which reflects the greatest degree of effluent reduction which the Administrator determines to be achievable through applicatio…

NAC 445A.110 “Toxic material” defined. (NRS 445A.425) 1. “Toxic material” means any pollutant or combination of pollutants which will, on the basis of information available to the Administrator, cause an organism or its offspring to die or to suffer any: (a) Disease; (b) Behavior…

NAC 445A.111 “Treatment or waste treatment” defined. (NRS 445A.425) “Treatment or waste treatment” means the stabilization or alteration of the quality of wastewaters by physical, biological or chemical means or a combination thereof, for the purpose of reducing or eliminating ad…

NAC 445A.112 “Treatment works” defined. (NRS 445A.425) “Treatment works” has the meaning ascribed to it in NRS 445A.410. [Environmental Comm’n, Water Pollution Control Reg. §§ 1.37-1.37.5, eff. 5-2-78; A 1-25-79]—(Substituted in revision for NAC 445.110)

NAC 445A.113 “Water quality standards or limitations” defined. (NRS 445A.425) “Water quality standards or limitations” means any applicable state or federal water quality standards or limitations, including but not limited to water quality criteria, water use classifications, imp…

NAC 445A.114 “Waters of the State” defined. (NRS 445A.425) “Waters of the State” has the meaning ascribed to it in NRS 445A.415. [Environmental Comm’n, Water Pollution Control Reg. § 1.39, eff. 5-2-78; A 1-25-79]—(Substituted in revision for NAC 445.112)

NAC 445A.115 “Zone of mixing” defined. (NRS 445A.425) “Zone of mixing” means the volume of water near the point of waste discharge within which the waste immediately mixes with the receiving water due to the momentum of the waste discharge and the difference in density between th…

NAC 445A.116 “Zone of passage” defined. (NRS 445A.425) “Zone of passage” means a continuous water route of the volume, cross-sectional area and quality necessary to allow passage of aquatic life without any significant effect produced on the aquatic life. [Environmental Comm’n, W…

NAC 445A.117 Severability. (NRS 445A.425, 445A.520) If any of the provisions of NAC 445A.070 to 445A.340, inclusive, or any application thereof to any person, thing or circumstance is held invalid, it is intended that the invalidity not affect the remaining provisions or their ap…

NAC 445A.11704 Definitions. (NRS 445A.425, 445A.520) As used in NAC 445A.11704 to 445A.2234, inclusive, unless the context otherwise requires, the terms and symbols defined in NAC 445A.11708 to 445A.1178, inclusive, have the meanings ascribed to them in those sections. (Added to …

NAC 445A.11708 “A-Avg.” or “A.A.” defined. (NRS 445A.425, 445A.520) “A-Avg.” or “A.A.” means annual average. (Added to NAC by Environmental Comm’n, eff. 6-29-84)—(Substituted in revision for NAC 445A.129)

NAC 445A.11709 “BOD” or “biochemical oxygen demand” defined. (NRS 445A.425, 445A.520) “BOD” or “biochemical oxygen demand” means a measure of the amount of oxygen that bacteria will consume while decomposing organic matter under aerobic conditions. (Added to NAC by Environmental …

NAC 445A.11711 “cfu/100 mL” defined. (NRS 445A.425, 445A.520) “cfu/100 mL” means the number of colony-forming units of bacteria present in 100 milliliters of water. (Added to NAC by Environmental Comm’n by R102-16, eff. 12-19-2017)

NAC 445A.11712 “Δ” defined. (NRS 445A.425, 445A.520) “Δ” means the difference between two points. (Added to NAC by Environmental Comm’n, eff. 6-29-84)—(Substituted in revision for NAC 445A.130)