CHAPTER 445A - WATER CONTROLS

NAC 445A.6643 “Stop and waste valve” defined. (NRS 445A.860) “Stop and waste valve” means a valve installed in a meter box or valve box that allows a supply of water to a service line to be shut off and subsequently allows water from pipelines in the building or other property wh…

NAC 445A.66435 “Storage structure” defined. (NRS 445A.860) “Storage structure” means a reservoir, tank or other structure used by a public water system for the storage of finished water. (Added to NAC by Bd. of Health, eff. 2-20-97)

NAC 445A.6644 “Storage tank” defined. (NRS 445A.860) “Storage tank” means a tank used by a public water system for the storage of finished water. (Added to NAC by Bd. of Health, eff. 2-20-97)

NAC 445A.66445 “Storm sewer” defined. (NRS 445A.860) “Storm sewer” means an underground system of sewer lines for the collection and conveyance of surface drainage and other materials deposited into and borne by surface water to a point of disposal. (Added to NAC by Bd. of Health…

NAC 445A.6645 “Stuffing box” defined. (NRS 445A.860) “Stuffing box” means the dry portion of a pump, located behind the impeller and around the shaft, where the packing or mechanical seal is housed. (Added to NAC by Bd. of Health, eff. 2-20-97)

NAC 445A.66455 “Subdivision” defined. (NRS 445A.860) “Subdivision” has the meaning ascribed to it in NRS 278.320. (Added to NAC by Bd. of Health, eff. 2-20-97)

NAC 445A.6646 “Submersible pump” defined. (NRS 445A.860) “Submersible pump” means a turbine pump designed to operate with the entire pump assembly and motor submersed in liquid. (Added to NAC by Bd. of Health, eff. 2-20-97)

NAC 445A.66465 “Suction head” defined. (NRS 445A.860) “Suction head” means the condition that exists when the water on the suction side of a pump is above the centerline of the pump. (Added to NAC by Bd. of Health, eff. 2-20-97)

NAC 445A.6647 “Suction lift” defined. (NRS 445A.860) “Suction lift” means the condition that exists when a source of water is below the centerline of a pump. (Added to NAC by Bd. of Health, eff. 2-20-97)

NAC 445A.66475 “Suction well” defined. (NRS 445A.860) “Suction well” means a structure, vault or chamber used for the storage of raw water. (Added to NAC by Bd. of Health, eff. 2-20-97)

NAC 445A.6648 “Supplier of water” defined. (NRS 445A.860) “Supplier of water” means a person or other entity, including a governmental entity, which owns or operates a public water system. (Added to NAC by Bd. of Health, eff. 2-20-97)

NAC 445A.66485 “Surface water” defined. (NRS 445A.860) “Surface water” means all water open to the atmosphere and subject to surface runoff. (Added to NAC by Bd. of Health, eff. 2-20-97)

NAC 445A.6649 “Surge arrestor” defined. (NRS 445A.860) “Surge arrestor” means an electrical device installed to protect electric motors from high-voltage surges in power lines. (Added to NAC by Bd. of Health, eff. 2-20-97)

NAC 445A.66495 “Surge pressure” defined. (NRS 445A.860) “Surge pressure” means a momentary increase in the pressure of water in a pipeline caused by a sudden change in the velocity or the direction of flow of the water. (Added to NAC by Bd. of Health, eff. 2-20-97)

NAC 445A.66505 “Tentative map” defined. (NRS 445A.860) “Tentative map” has the meaning ascribed to it in NRS 278.019. (Added to NAC by Bd. of Health, eff. 2-20-97)

NAC 445A.6651 “Thrust anchor” defined. (NRS 445A.860) “Thrust anchor” means a block of concrete that is cast in place below a fitting and tied to the fitting with anchor rods for the purpose of anchoring the fitting against vertical thrust. (Added to NAC by Bd. of Health, eff. 2-…

NAC 445A.66515 “Thrust block” defined. (NRS 445A.860) “Thrust block” means a mass of concrete that is cast in place between a fitting and the undisturbed soil located at the side or bottom of a pipe trench for the purpose of anchoring the fitting against thrust. (Added to NAC by …

NAC 445A.6652 “Total capacity” defined. (NRS 445A.860) “Total capacity” means the capacity of a public water system to supply the water demanded by its customers within its area of service during all conditions except emergencies. (Added to NAC by Bd. of Health, eff. 2-20-97)

NAC 445A.66525 “Treatment facility” defined. (NRS 445A.860) “Treatment facility” means a facility for the treatment of water of a public water system. (Added to NAC by Bd. of Health, eff. 2-20-97)

NAC 445A.6653 “Tree system” defined. (NRS 445A.860) “Tree system” means a layout for a distribution system in which: 1. The distribution system centers around a single arterial main that decreases in size over its length; 2. Various branches of the distribution system are connect…

NAC 445A.66535 “Uniform Plumbing Code” defined. (NRS 445A.860) “Uniform Plumbing Code” means, except as otherwise modified by local ordinance pursuant to NRS 444.340 to 444.430, inclusive, the Uniform Plumbing Code as adopted by reference pursuant to NAC 445A.6663. (Added to NAC …

NAC 445A.6654 “Union” defined. (NRS 445A.860) “Union” means a mechanical coupling or adapter that is used to connect two pieces of pipe and which consists of: 1. A thread end which is fitted with interior and exterior threads; 2. A bottom end which is fitted with interior threads…

NAC 445A.66545 “Vacuum breaker” defined. (NRS 445A.860) “Vacuum breaker” means a mechanical device that allows air into a piping system and thereby prevents the backflow that could result when a partial vacuum creates a siphoning action. (Added to NAC by Bd. of Health, eff. 2-20-…

NAC 445A.6655 “Valve box” defined. (NRS 445A.860) “Valve box” means a box or vault constructed of plastic, metal or concrete which is placed over a valve stem at the surface of the ground to allow access for opening and closing the valve and which has a cover located at the surfa…

NAC 445A.66555 “Volute” defined. (NRS 445A.860) “Volute” means a spiral-shaped casing that surrounds an impeller and collects the liquid discharged by the impeller. (Added to NAC by Bd. of Health, eff. 2-20-97)

NAC 445A.6656 “Wastewater” defined. (NRS 445A.860) “Wastewater” means water which, as a result of domestic, commercial or industrial use, contains physical, chemical or biological impurities. (Added to NAC by Bd. of Health, eff. 2-20-97)

NAC 445A.66565 “Wastewater force main” defined. (NRS 445A.860) “Wastewater force main” means a pressurized pipe that connects the discharge from a wastewater lift station to a gravity sanitary sewer. (Added to NAC by Bd. of Health, eff. 2-20-97)

NAC 445A.6657 “Wastewater lift station” defined. (NRS 445A.860) “Wastewater lift station” means a pumping station that raises wastewater from a gravity sanitary sewer to a higher elevation. (Added to NAC by Bd. of Health, eff. 2-20-97)

NAC 445A.66575 “Water hammer” defined. (NRS 445A.860) “Water hammer” means a potentially damaging slam, bang or shudder that occurs in a pipe when a sudden change in water velocity, usually caused by the rapid starting or stopping of a pump or opening or closing of a valve, creat…

NAC 445A.6658 “Water main” defined. (NRS 445A.860) “Water main” means: 1. A pipe or conduit within a distribution system which is used or intended for the conveyance of water to more than one service connection; or 2. A dedicated pipeline for the conveyance of water from its sour…

NAC 445A.66585 “Water project” defined. (NRS 445A.860) “Water project” means the initial construction, or any renovation, modification or expansion, of: 1. Each portion of a public water system that begins operation after February 20, 1997; or 2. Each portion of a public water sy…

NAC 445A.6659 “Water service lateral” defined. (NRS 445A.860) “Water service lateral” means a pipe that conveys water from a water main to the point of use of the water. (Added to NAC by Bd. of Health, eff. 2-20-97)

NAC 445A.66595 “Water well” defined. (NRS 445A.860) “Water well” means an encased excavation made by any drilling method for the development of groundwater from its source. (Added to NAC by Bd. of Health, eff. 2-20-97)

NAC 445A.66605 “Well yield” defined. (NRS 445A.860) “Well yield” means the maximum amount of water, as expressed in gallons per minute or cubic feet per second, that can be pumped from a well on a sustained basis without lowering the level of the water below the intake of the pum…

NAC 445A.6661 “Zone of pressure” defined. (NRS 445A.860) “Zone of pressure” means an area within a distribution system where the pressure in the water mains is maintained within certain specified limits. (Added to NAC by Bd. of Health, eff. 2-20-97)

NAC 445A.66615 Purposes of provisions. (NRS 445A.860) The purposes of NAC 445A.65505 to 445A.6731, inclusive, are to: 1. Provide the public with reasonable assurance that its water is satisfactory for consumption and for ablutionary and culinary purposes; 2. Protect the public he…

NAC 445A.6662 Applicability of provisions. (NRS 445A.860) 1. Except as otherwise provided in subsection 2, the provisions of NAC 445A.65505 to 445A.6731, inclusive, apply to every public water system in this State. 2. Except for water projects performed after February 20, 1997, N…

NAC 445A.66625 Severability of provisions. (NRS 445A.860) If any of the provisions of NAC 445A.65505 to 445A.6731, inclusive, or any application of those provisions to any person, thing or circumstance is declared invalid, it is intended that such invalidity not affect the remain…

NAC 445A.6663 Adoption of standards and publications by reference. (NRS 445A.860) The following provisions and publications are hereby adopted by reference: 1. The American Water Works Association Standards, as those standards existed on July 1, 2022. A copy of those standards is…

NAC 445A.66632 Request by engineer to use product not certified in accordance with Standard 61 adopted by reference. (NRS 445A.860) If a product that is subject to certification pursuant to NAC 445A.65825 in accordance with Standard 61, as adopted by reference in NAC 445A.6663, i…

NAC 445A.66633 Adoption of manual by reference. (NRS 445A.860) Water Fluoridation: A Manual for Engineers and Technicians, 1986 edition, as published by the Centers for Disease Control and Prevention of the United States Department of Health and Human Services, is hereby adopted …

NAC 445A.66635 Payment of prescribed fees required. (NRS 445A.860) The Division shall not issue or renew any permit to operate a public water system or, except as otherwise provided in subsection 2 of NAC 445A.6669, review plans for or any engineering report related to the constr…

NAC 445A.6664 Prescribed fees. (NRS 439.150, 439.200, 445A.860) 1. The Division shall charge and collect fees for its service, as follows: (a) Except as otherwise provided in subsection 2 of NAC 445A.6669, for reviewing an application for a permit to construct, modify or expand a…

NAC 445A.66643 Prescribed fees. (NRS 445A.860) 1. Except as otherwise provided in subsections 3 and 4, the Division shall charge and collect fees for services, as follows: (a) For reviewing an application for a permit to construct, renovate, modify or expand a public water system…

NAC 445A.66645 Administrative review of action taken by Division or appropriate district board of health. (NRS 445A.860) 1. A person who has reason to believe that an action taken by the Division or the appropriate district board of health, pursuant to NAC 445A.65505 to 445A.6731…

NAC 445A.6665 Special exceptions to provisions. (NRS 445A.860, 445A.935) The Division, or the appropriate district board of health with the concurrence of the Division, may grant a supplier of water a special exception from any of the provisions of NAC 445A.65505 to 445A.6731, in…

NAC 445A.66655 Responsibilities of supplier of water and customer. (NRS 445A.860) 1. A supplier of water and, where applicable, each customer of a public water system shall comply with the provisions of NAC 445A.65505 to 445A.6731, inclusive. 2. A supplier of water: (a) Is respon…