CHAPTER 445A - WATER CONTROLS

NAC 445A.66675 System for control of corrosion. (NRS 445A.860) A supplier of water shall, where warranted by the presence of lead or copper in the public water system, install and operate a system for the control of corrosion that: 1. Minimizes the concentrations of lead and copp…

NAC 445A.6668 Program for assessment of sources of groundwater for vulnerability to contamination. (NRS 445A.860) A supplier of water may elect to participate in the program of the Division for the assessment of sources of groundwater for vulnerability to contamination. Pursuant …

NAC 445A.66685 Standards for design and construction of system. (NRS 445A.860) 1. Except as otherwise provided in subsection 2, the design and construction of a public water system must comply with the provisions of: (a) NAC 445A.65505 to 445A.6731, inclusive. (b) The American Wa…

NAC 445A.6669 Prerequisites to commencement of water project; waiver of prerequisites; exceptions. (NRS 445A.860) 1. Except as otherwise provided in this section, a supplier of water shall, before commencing a water project: (a) Submit to the Division or the appropriate district …

NAC 445A.66695 Application for approval of water project. (NRS 445A.860) An application for approval of a water project must contain: 1. Complete plans for the water project, including the details of any improvements to be made and all work to be performed on-site. 2. Complete sp…

NAC 445A.66705 Preparation by engineer of plans, specifications and design reports for water project. (NRS 445A.860) In accordance with the provisions of NAC 625.610 to 625.613, inclusive: 1. All initial and final plans, specifications and design reports for a water project must …

NAC 445A.6671 Approval of water project: Prerequisites; effective period; extension; revocation. (NRS 445A.860) 1. The Division or the appropriate district board of health shall not approve a water project unless the application for approval of the water project demonstrates that…

NAC 445A.66715 Performance and inspection of work on water project; certification of substantial compliance with approved plans and specifications. (NRS 445A.860) 1. Work on a water project must be: (a) Performed in substantial compliance with the plans and specifications approve…

NAC 445A.6672 Existing systems: Minimum capacities; minimum pressure and velocity of water; total capacity of groundwater system; timely completion of water projects. (NRS 445A.860) A supplier of water for an existing public water system shall: 1. Ensure that the public water sys…

NAC 445A.66725 Existing systems: Determination of total capacity preparation, maintenance and dissemination of certain information, analyses, plans and reports. (NRS 445A.860) A supplier of water for an existing public water system shall: 1. Determine the total capacity of the pu…

NAC 445A.6673 Existing systems: Evaluation, justification and design of proposed water project. (NRS 445A.860) If an existing public water system proposes to perform a water project after February 20, 1997, the proposed water project must be: 1. Evaluated and justified by an engi…

NAC 445A.66735 New systems: Capacity for development and treatment of water. (NRS 445A.860) 1. A supplier of water for a new public water system shall ensure that, except as otherwise justified by an engineer and approved by the Division or the appropriate district board of healt…

NAC 445A.6674 Storage capacity. (NRS 445A.860) Except as otherwise provided in NAC 445A.66755: 1. A supplier of water shall ensure that: (a) An existing public water system maintains a storage capacity that, as determined by an engineer on the basis of historical data, accepted e…

NAC 445A.66745 Operating storage. (NRS 445A.860) Except as otherwise provided in NAC 445A.66755: 1. An existing public water system must maintain an operating storage in such an amount as an engineer determines, based upon historical data and the system’s capacity for the develop…

NAC 445A.6675 Emergency reserve. (NRS 445A.860) Except as otherwise provided in NAC 445A.66755: 1. An existing public water system must maintain an emergency reserve in such an amount as an engineer determines appropriate on the basis of the best available local information. 2. A…

NAC 445A.66755 Existing systems: Exemption from storage requirements. (NRS 445A.860) An existing public water system is not required to comply with the requirements of NAC 445A.6674, 445A.66745 and 445A.6675 if the system has a sufficient alternative pumping capacity to meet requ…

NAC 445A.6676 Development and treatment of sources of water: General requirements. (NRS 445A.860) 1. The development or treatment of a source of water for a public water system must comply with the applicable provisions of: (a) NAC 445A.66765 to 445A.6696, inclusive; and (b) NAC …

NAC 445A.66765 Treatment facilities: General requirements; use of point-of-entry or point-of-use treatment devices; prerequisites to selection of design. (NRS 445A.860) 1. Treatment facilities must be capable of producing water that complies with the requirements of NAC 445A.450 …

NAC 445A.6677 Treatment facilities: Prerequisites to use. (NRS 445A.860) 1. A supplier of water shall, before using a treatment facility: (a) Submit to the Division or the appropriate district board of health the information regarding the design of the facility set forth in subse…

NAC 445A.66775 Treatment facilities: Selection of site. (NRS 445A.860) A supplier of water shall: 1. Before plans and specifications are prepared for a treatment facility, consult with the Division or the appropriate district board of health regarding the selection of a site for …

NAC 445A.6678 Treatment facilities: Determination of necessary amount of redundancy. (NRS 445A.860) A supplier of water shall, before a treatment facility is designed, consult with the Division or the appropriate district board of health regarding the amount of redundancy the Div…

NAC 445A.66785 Treatment facilities: Design and construction. (NRS 445A.860) A treatment facility must: 1. Be designed in such a manner as to ensure: (a) The reliable operation of the facility; (b) That the facility functions safely and efficiently; and (c) That the public water …

NAC 445A.6679 Treatment facilities: Designation of piping and valves; schematic diagram for control of processes. (NRS 445A.860) 1. In a treatment facility: (a) The piping must designate, by color coding and other means, the liquid contained in the piping and the direction of flo…

NAC 445A.66795 Treatment facilities: Submission of information regarding application of chemicals. (NRS 445A.860) If the design of a treatment facility includes the application of chemicals, a supplier of water shall submit to the Division or the appropriate district board of hea…

NAC 445A.66805 Treatment facilities: Quality of chemicals; labeling of containers for shipping chemicals; storage of chemicals. (NRS 445A.860) In a treatment facility: 1. Each chemical used for the treatment of water must be determined to be compatible with drinking water. 2. Con…

NAC 445A.6681 Treatment facilities: Safety and efficiency. (NRS 445A.860) A treatment facility must be designed and constructed in such a manner as to: 1. Function safely and efficiently. 2. Comply with any requirements imposed by: (a) The federal Occupational Safety and Health A…

NAC 445A.66815 Treatment facilities: Disposal of waste. (NRS 445A.860) 1. A supplier of water shall provide for the proper disposal of waste from a treatment facility, including sanitary waste, sludge, waste from any laboratory, waste from drainage within the facility and waste r…

NAC 445A.6682 Fluoridation. (NRS 439.200, 445A.055, 445A.860) 1. On or before March 1, 2000, all water delivered for human consumption in a county whose population is 400,000 or more by a: (a) Public water system that serves a population of 100,000 or more; or (b) Water authority…

NAC 445A.66825 Disinfection of water: General requirements. (NRS 445A.860) 1. In addition to any disinfection required pursuant to NAC 445A.526, a supplier of water shall provide for the continuous disinfection, in accordance with NAC 445A.66825 to 445A.6685, inclusive, of any gr…

NAC 445A.6683 Disinfection of water: Chlorination. (NRS 445A.860) If chlorine is used for the disinfection of water: 1. The disinfection must be accomplished with liquefied or gaseous chlorine, calcium hypochlorite or sodium hypochlorite. 2. The supplier of water shall use chlori…

NAC 445A.66835 Use of gaseous chlorine: Training of personnel; compliance with requirements for safety; ensuring continuous disinfection. (NRS 445A.860) If gaseous chlorine is used for the disinfection of water: 1. The facilities that use gaseous chlorine must employ personnel wh…

NAC 445A.6684 Use of gaseous chlorine: Location, storage and maintenance of equipment. (NRS 445A.860) 1. Except as otherwise justified by an engineer and approved by the Division or the appropriate district board of health, gaseous chlorine or equipment for the use of gaseous chl…

NAC 445A.66845 Use of gaseous chlorine: Chlorine room. (NRS 445A.860) In a facility of a public water system where gaseous chlorine is used for the disinfection of water: 1. The chlorinator, the cylinders of gaseous chlorine and a scale or other device suitable for determining th…

NAC 445A.6685 Use of sodium hypochlorite. (NRS 445A.860) If sodium hypochlorite is used for the disinfection of water, the supplier of water shall: 1. Take appropriate actions to prevent the natural decomposition of the sodium hypochlorite, including: (a) Obtaining fresh sodium h…

NAC 445A.66855 Water wells: General requirements. (NRS 445A.860) If a water well is used as a source of water for a public water system, the water well must comply with: 1. The provisions of NAC 445A.66855 to 445A.6693, inclusive; 2. All of the provisions of American Water Works …

NAC 445A.6686 Water wells: Establishment of redundant capacity for development and treatment of water. (NRS 445A.860) The Division or the appropriate district board of health may require a supplier of water to establish a redundant capacity for the development and treatment of wa…

NAC 445A.66865 Water wells: Location. (NRS 445A.860) 1. Before designing and carrying out a proposal for the location of a water well, a supplier of water shall: (a) Submit to the Division or the appropriate district board of health information on any flood zone that includes the…

NAC 445A.6687 Water wells: Prohibited types. (NRS 445A.860) A supplier of water shall not use a drive point water well, a dug water well or a jetted water well as a source of water for the public water system. (Added to NAC by Bd. of Health, eff. 2-20-97)

NAC 445A.66875 Water wells: Documentation of right to divert water. (NRS 445A.860) Before a public water system uses a water well as a source of water, the supplier of water shall submit to the Division or the appropriate district board of health documentation indicating that the…

NAC 445A.6688 Water wells: Determination and reporting of yield characteristics of well. (NRS 445A.860) After the construction of a water well and before the attachment of a permanent pump to the well, the supplier of water shall: 1. Cause a step drawdown test and a constant disc…

NAC 445A.66885 Water wells: Prerequisites to use after construction, modification or reconditioning. (NRS 445A.860) 1. After the construction of a water well is completed and before any water from the well is allowed to enter a public water system, the supplier of water shall: (a…

NAC 445A.6689 Water wells: Casing. (NRS 445A.860) 1. Except as otherwise provided in subsection 2, a water well must be cased to the bottom of the drill hole and constructed in such a manner as to prevent any pollution or contamination of the groundwater. 2. If no additional wate…

NAC 445A.66895 Water wells: Prevention of pollution and contamination. (NRS 445A.860) 1. Drilling fluids and additives must not impart any substances into the water which will cause or promote any pollution or contamination. 2. If inferior quality water is encountered at any time…

NAC 445A.66905 Water wells: Seals and coatings. (NRS 445A.860) 1. Except as otherwise provided in subsection 4 and NAC 445A.6691, a water well must have a sanitary seal consisting of neat cement, cement grout or concrete grout from a depth of not less than 50 feet below the surfa…

NAC 445A.6691 Water wells: Construction near certain other sources of water. (NRS 445A.860) If a water well is drilled within 1/4 mile of a perennial stream, river, lake, unlined reservoir or unlined canal: 1. There must be no perforations in the production casing from ground lev…

NAC 445A.66915 Water wells: Slabs and pedestals; construction with lineshaft turbine pump or submersible pump. (NRS 445A.860) 1. A water well with an above-ground discharge must be protected by a concrete slab and, if the well is equipped with a lineshaft turbine pump, with a con…

NAC 445A.6692 Water wells: Access port or sounding tube; vent. (NRS 445A.860) 1. Except as otherwise provided in subsection 2, a water well must have an access port which can be used for measuring the level of water. If the diameter of the casing is: (a) No greater than 8 5/8 inc…