reglab/statecodes huggingface dataset:
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.67095 - Storage structures: Drainage; protection from pollution and contamination

Current through June 11, 2024
1. Storage tanks
				must have sloped, watertight roofs and sidewalls, with no openings except
				properly constructed vents, manholes, overflows, drains, control ports and
				piping. The roofs must drain well.
2. The bottom of a ground-level tank, or of
				any reservoir or standpipe used for distribution storage, must be protected
				from floods at the maximum flood level. The area surrounding such a structure
				must be graded in a manner that will prevent standing surface water.
3. Subsurface storage structures must be
				lined and covered, and located:
(a) Above the
				maximum elevation of the groundwater; and
(b) At least 50 feet from any sewer main and
				at least 150 feet from all other sewerage facilities.
The land adjacent to such a structure must be graded in such
				  a manner as to route surface water away from the structure.
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.67105 - Distribution system: General requirements

Current through June 11, 2024
A supplier of water shall ensure that the distribution system
				  of the public water system:
1. Is
				adequate to deliver sufficient volumes of water, of the appropriate quality and
				pressure, to the area of service of the public water system.
2. Complies with the requirements of NAC
				445A.67105 to 445A.67145, inclusive.
Added to NAC by Bd. of
				  Health, eff. 2-20-97
NRS
					 445A.860
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.6711 - Distribution system: Pressure

Current through June 11, 2024
1. A distribution
				system must be designed to maintain:
(a) A
				minimum pressure of 20 psi at ground level for all service connections during
				all conditions of fire flow experienced during maximum day demand.
(b) A normal working pressure of not less
				than 40 psi during maximum day demand.
(c) A minimum pressure of 30 psi during peak
				hour demand.
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.67115 - Distribution system: Design; diameter of water mains; connection to fire hydrant

Current through June 11, 2024
1. Before designing
				a water main for a public water system, an engineer shall perform a network
				hydraulic analysis on the public water system, based upon the requirements for
				flow and pressure set forth in NAC 445A.6672 to 445A.66735, inclusive, and
				445A.6711.
2. Except as otherwise
				authorized by the Division or the appropriate district board of health on a
				case-by-case basis, the inside diameter of the water mains of a public water
				system must have a nominal size of at least 6 inches.
3. A water service lateral that serves a fire
				hydrant must, if the water service lateral is:
(a) Not more than 150 feet in length, be not
				less than 6 inches in diameter.
(b)
				More than 150 feet in length, be of a diameter that is justified by an engineer
				and approved by the Division or the appropriate district board of health.
A fire hydrant must not be connected to a water main or
				  water service lateral that does not have a sufficient capacity for fire
				  flow.
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.6712 - Distribution system: Dead ends

Current through June 11, 2024
1. A distribution
				system must be designed, to the extent possible, in such a manner as to
				eliminate dead ends and form a grid system or system of arterial loops. Except
				as otherwise justified by an engineer and approved by the Division or the
				appropriate district board of health, tree systems are prohibited.
2. Where a dead end cannot be eliminated, it
				must:
(a) If the flow and pressure is
				sufficient, terminate with:
(1) A gate valve
				of the same size as the water main; and
(2) A fire hydrant; or
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.67125 - Distribution system: Materials

Current through June 11, 2024
1. Except as
				otherwise provided in subsections 2 and 3, the pipes, fittings, fixtures and
				valves of a distribution system, and any fire hydrants connected to a public
				water system, must:
(a) For public water
				systems in Carson City, Fallon, Reno, Sparks, Yerington, Douglas County, Lander
				County, Lyon County, Nye County or Washoe County, comply with
Standard
				Specifications for Public Works Construction
, also known as the
				"Orange Book," and the
American Water Works Association
				Standards
, as adopted by reference in NAC 445A.6663.
(b) For public water systems in Boulder City,
				Henderson, North Las Vegas, the Big Bend Water District or the Las Vegas Valley
				Water District, comply with
Uniform Design and Construction Standards
				for Potable Water Distribution Systems
and the
American Water
				Works Association Standards
, as adopted by reference in NAC
				445A.6663.
(c) For public water
				systems in other areas of the State, comply with the
American Water
				Works Association Standards
, as adopted by reference in NAC
				445A.6663.
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.6713 - Distribution system: Isolation valves

Current through June 11, 2024
1. Water mains must
				contain sufficient isolation valves to minimize any inconvenience to customers
				and sanitary hazards resulting from repairs.
2. Except as otherwise provided in subsection
				3, isolation valves in:
(a) Commercial
				districts must be located at intervals of not more than 500 feet;
(b) Areas where users of water are widely
				scattered and future development is not expected must be located at intervals
				of not more than 1 mile; or
(c)
				Other areas must be located in such a manner that portions of water mains can
				be isolated in lengths of 800 feet or less by the closure of valves.
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.67135 - Distribution system: Release and blowoff valves

Current through June 11, 2024
1. Air
				and vacuum valves, air release valves or hydrants must be installed at high
				points in water mains where air tends to accumulate.
2. Suitably sized blowoff valves must be
				provided in appropriate locations at low points in water mains with diameters
				of 20 inches or more. Blowoff valves must have air gaps and must not discharge
				directly into sewer lines.
3.
				Except as otherwise provided in subsection 4, the openings of any vents in a
				valve required pursuant to this section must:
(a) Be located at least 1 foot above the
				grade of the ground surface; and
(b) Have a discharge pipe that is screened,
				elbowed and faced downward in such a manner as to protect the pipe from traffic
				and other disturbances. The screen must not be susceptible to damage by
				corrosion and must have not less than 22 nor more than 24 mesh per
				inch.
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.6714 - Distribution system: Chambers, vaults, pits and manholes

Current through June 11, 2024
A chamber, vault, pit or manhole that contains any valves,
				  including blowoff valves, or any meters or other appurtenances of a
				  distribution system:
1. Must not be
				connected directly to any sanitary sewer or storm sewer; and
2. Except for meter boxes for service lines
				and valve boxes for water mains, must be drained to the surface of the ground
				or to a subsurface drainage field.
Added to NAC by Bd. of
				  Health, eff. 2-20-97
NRS
					 445A.860
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.67145 - Distribution system: Construction

Current through June 11, 2024
1. Except as
				otherwise provided in this section, a water main must be installed:
(a) For public water systems in Carson City,
				Fallon, Reno, Sparks, Yerington, Douglas County, Lander County, Lyon County,
				Nye County or Washoe County, in compliance with
Standard Specifications
				for Public Works Construction
, also known as the "Orange Book," and
				the
American Water Works Association Standards
, as adopted by
				reference in NAC
				445A.6663.
(b) For public water systems in Boulder City,
				Henderson, North Las Vegas, the Big Bend Water District or the Las Vegas Valley
				Water District, in compliance with
Uniform Design and Construction
				Standards for Potable Water Systems and the American Water Works Association
				Standards
, as adopted by reference in NAC
				445A.6663.
(c) For public water systems in other areas
				of the State, in compliance with the
American Water Works Association
				Standards
, as adopted by reference in NAC
				445A.6663.
(d) Except as otherwise provided in
				paragraphs (a), (b) and (c), in compliance with the procedures for installation
				recommended by the manufacturer of the water main.
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.6715 - Separation of lines: Definitions

Current through June 11, 2024
As used in NAC 445A.6715 to
				  445A.6718, inclusive, and
				  section 3 of this regulation, unless the context otherwise requires:
1. "Sewer main":
(a) Includes any unidentified conduit with a
				minimum diameter of 6 inches.
(b)
				Does not include:
(1) A potable water
				irrigation service with a diameter that is less than or equal to 2 inches;
				or
(2) A storm water driveway
				crossing when such a crossing is used within an open trench roadside
				drainage.
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.67153 - Separation of lines: Circumstances under which catch basin or manhole dimensions not required to be used in determining separation distances

Current through June 11, 2024
If a gravity sewer line or gravity sewer main includes a
				  catch basin or manhole which is designed or retrofitted to be watertight, the
				  catch basin or manhole dimensions are not required to be included when
				  determining the minimum separation distances required pursuant to this section
				  and NAC 445A.6715 to
				  445A.6718, inclusive, other than
				  for accessibility and maintenance.
Added to
				  NAC by Environmental Comm'n by
				  R049-18A,
				  eff. 8/30/2018
NRS
				  445A.860
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.67155 - Separation of lines: Sewer main parallel to water main or water service lateral

Current through June 11, 2024
1. If a sewer main
				parallels a water main or water service lateral:
(a) Whenever possible, the sewer main must be
				located lower than the water main or water service lateral.
(b) Except as otherwise provided in paragraph
				(c), the sewer main must be in a separate trench and:
(1) Located at least 10 feet away from the
				water main or water service lateral, as measured horizontally from the exterior
				walls of the pipes;
(2) If
				compliance with subparagraph (1) is not practicable, located:
(I) At least 5 feet away from the water main
				or water service lateral, as measured horizontally from the exterior walls of
				the pipes; and
(II) At least 18
				inches lower than the water main or water service lateral, as measured
				vertically from the exterior walls of the pipes; or
(3) If compliance with neither subparagraph
				(1) nor subparagraph (2) is practicable, located at least 6 feet away from the
				water main or water service lateral, as measured horizontally from the exterior
				walls of the pipes. If the sewer main:
(I) Is
				in place at the time a water project is performed, the sewer main must be
				totally encased in at least 4 inches of cement slurry.
(II) Is not in place at the time a water
				project is performed, the sewer main must be constructed of PVC with joints
				that comply with Standard D3212 of the American Society for Testing and
				Materials.
(c) If compliance with the requirements set
				forth in subparagraph (b) is not practicable, an engineer must:
(1) Identify in the plans the area where
				compliance is impracticable in plan and profile views;
(2) Provide any applicable standard details
				for the area where compliance is impracticable;
(3) Propose a modification to the
				requirements;
(4) Demonstrate that
				the modification will not conflict with the provisions of NAC
				445A.66615; and
(5) Request approval from the Division or the
				appropriate district board of health for the engineer's proposed
				modification.
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.6716 - Separation of lines: Sewer service lateral parallel to water main or water service lateral

Current through June 11, 2024
1. If a sewer
				service lateral parallels a water main or water service lateral, the sewer
				service lateral must be in a separate trench and:
(a) Except as otherwise provided in paragraph
				(b), located:
(1) At least 12 inches lower
				than the water main or water service lateral, as measured vertically from the
				exterior walls of the pipes; and
(2) At least 48 inches away from the water
				main or water service lateral, as measured horizontally from the exterior walls
				of the pipes.
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.67165 - Separation of lines: Sewer main crossing water main

Current through June 11, 2024
1. If
				a sewer main crosses a water main:
(a) Except
				as otherwise provided in paragraph (b), the sewer main must be located at least
				18 inches lower than the water main, as measured vertically from the exterior
				walls of the pipes.
(b) If
				compliance with paragraph (a) is impracticable:
(1) A reasonable effort must be made to place
				the pipeline joints of the sewer main and water main, other than any welded
				joints, an equal distance from the point of crossing;
(2) Except as otherwise provided in paragraph
				(c), the sewer main and water main must be:
(I) Located at least 6 inches apart, as
				measured vertically from the exterior walls of the pipes; and
(II) Provided with such structural support as
				the supplier of water determines necessary; and
(3) The area of crossing must be constructed
				in such a manner that:
(1) The the sewer main
				is composed of materials that:
(I) For public
				water systems in Carson City, Fallon, Reno, Sparks, Yerington, Douglas County,
				Lander County, Lyon County, Nye County or Washoe County, comply with Standard
				Specifications for Public Works Construction, also known as the "Orange Book,"
				and the American Water Works Association Standards;
(II) For public water systems in Boulder
				City, Henderson, North Las Vegas, the Big Bend Water District or the Las Vegas
				Valley Water District, comply with Uniform Design and Construction Standards
				for Potable Water Distribution Systems and the American Water Works Association
				Standards; or
(III) For public
				water systems in other areas of the State, comply with the American Water Works
				Association Standards.
If the sewer main consists of water quality PVC, the sewer
				  main must be constructed with joints that comply with Standard D3139 of ASTM
				  International
(c) If compliance with the requirements of
				subparagraph (2) of paragraph (b) of subsection 1 is impracticable, an engineer
				must:
(1) Identify in the plans the area where
				compliance is impracticable in plan and profile views;
(2) Provide any applicable standard details
				for the area where compliance is impracticable;
(3) Propose a modification to the
				requirements;
(4) Demonstrate that
				the modification will not conflict with the provisions of NAC
				445A.66615; and
(5) Request approval from the Division or the
				appropriate district board of health for the engineer's proposed
				modification.
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.6717 - Separation of lines: Sewer main crossing water service lateral

Current through June 11, 2024
1. Except as otherwise provided in subsection
				2, if a sewer main crosses a water service lateral, the sewer main must be
				located at least 18 inches lower than the water service lateral, as measured
				vertically from the exterior walls of the pipes.
2. If compliance with subsection 1 is
				impracticable:
(a) The sewer main must consist
				of water quality PVC which is constructed with joints that comply with Standard
				D3139 of the American Society for Testing Materials; or
(b) An engineer must:
(1) Identify in the plans the area where
				compliance is impracticable in plan and profile views;
(2) Provide any applicable standard details
				for the area where compliance is impracticable;
(3) Propose a modification;
(4) Demonstrate that the modification will
				not conflict with the provisions of NAC
				445A.66615; and
(5) Request approval from the Division or the
				appropriate district board of health for the engineer's proposed
				modification.
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.67175 - Separation of lines: Sewer service lateral crossing water main or water service lateral

Current through June 11, 2024
1. If a sewer
				service lateral crosses a water main or water service lateral, the sewer
				service lateral must be located:
(a) At least
				12 inches lower than the water main or water service lateral, as measured
				vertically from the exterior walls of the pipes; or
(b) If compliance with paragraph (a) is
				impracticable, an engineer must:
(1) Identify
				in the plans the area where compliance is impracticable in plan and profile
				views;
(2) Provide any applicable
				standard details for the area where compliance is impracticable;
(3) Propose a modification;
(4) Demonstrate that the modification will
				not conflict with the provisions of NAC
				445A.66615; and
(5) Request approval from the Division or the
				appropriate district board of health for the engineer's proposed
				modification.
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.6718 - Separation of lines: Lines across surface water

Current through June 11, 2024
1. A
				supplier of water shall consult with the Division or the appropriate district
				board of health before preparing any plans for the construction of a pipeline
				of the public water system across any surface water, regardless of whether the
				crossing will be over or under the surface of the water.
2. If the pipeline will cross over the
				surface of the water, the pipe must be adequately supported and anchored,
				protected from damage and freezing, and accessible for repair and
				replacement.
3. Except as otherwise
				provided in subsection 4, if the pipeline will cross under the surface of the
				water, the pipe must be:
(a) Covered with at
				least 5 feet of backfill; and
(b)
				Enclosed in a pipe sleeve or encased with at least 4 inches of cement
				slurry.
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.67185 - Cross-connections and backflow: General requirements

Current through June 11, 2024
A supplier of water shall:
1. Ensure that there are no unprotected
				connections between the supplies of water, systems for the pumping, storage and
				treatment of water, and distribution system of the public water system and any
				source of pollution or contamination pursuant to which any unsafe water or
				other degrading material can be discharged or drawn into the public water
				system as a result of backsiphonage or backpressure.
2. Develop and carry out a program for the
				control of cross-connections that is approved by the Division or the
				appropriate district board of health. Except for a program that has been
				approved by the Division of Public and Behavioral Health or the appropriate
				district board of health before February 20, 1997, a program for the control of
				cross-connections must:
(a) Be submitted to
				the Division or the appropriate district board of health for its approval not
				later than:
(1) January 1, 1999; or
(2) Eighteen months after the public water
				system begins operation, whichever is later.
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.6719 - Cross-connections and backflow: Assemblies for prevention of backflow

Current through June 11, 2024
1. Except as otherwise provided in section 4
				of this regulation, each, each service connection must have an assembly for the
				prevention of backflow, of a type that is commensurate with the degree of
				hazard that exists on the property of the customer of a public water system.
				Except as otherwise provided in NAC
				445A.67185 to
				445A.67255, inclusive, and
				section 4 of this regulation, the assembly may consist of any one of the
				following, as listed in the order of least to most protection:
(a) A double check valve assembly.
(b) A reduced pressure principle
				assembly.
(c) An air gap.
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.67192 - Cross-connections and backflow: Assembly for prevention of backflow not required for certain fire hydrants unless hazard to public water system

Current through June 11, 2024
A fire hydrant that is directly connected to a water main
				  which is accessible to the public does not require an assembly for the
				  prevention of backflow unless the supplier of water determines that the lack of
				  an assembly for the prevention of backflow presents a hazard to the public
				  water system. If the supplier of water determines there is such a hazard to the
				  public water system, the supplier of water must require the installation of an
				  assembly for the prevention of backflow where the fire hydrant connects to the
				  water main which is commensurate with the degree of hazard that exists in
				  accordance with the requirements of this section and NAC
				  445A.67185 to
				  445A.67255,
				  inclusive.
Added to
				  NAC by Environmental Comm'n by
				  R049-18A,
				  eff. 8/30/2018
NRS
				  445A.860
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.67195 - Cross-connections and backflow: Minimum types of protection for particular service connections

Current through June 11, 2024
Except as otherwise provided in NAC
				  445A.67185 to
				  445A.67255, inclusive, or
				  authorized by the Division or the appropriate district board of health, the
				  minimum type of protection from cross-connection required for a service
				  connection to:
1. A public building or
				any building:
(a) That contains a hotel, motel
				or casino;
(b) Used for commercial
				purposes where a specific business activity has not been identified;
				or
(c) In which one or more sewage
				pumps or sewage ejectors have been installed, consists of a reduced pressure
				principle assembly.
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.67205 - Cross-connections and backflow: Minimum types of protection for service connection to auxiliary supply of water or irrigation system

Current through June 11, 2024
Except as otherwise provided in NAC 445A.67185 to 445A.67255,
				  inclusive, the minimum type of protection required for a service connection
				  to:
1. An auxiliary supply of water
				must consist of a double check valve assembly or reduced pressure principle
				assembly, as determined by the supplier of water and approved by the Division
				or the appropriate district board of health.
2. An irrigation system, including a system
				for irrigating median strips, must consist of:
(a) A pressure vacuum breaker or double check
				valve assembly, as determined by the supplier of water and approved by the
				Division or the appropriate district board of health; or
(b) Except as otherwise authorized by the
				Division or the appropriate district board of health, if facilities have been
				installed for pumping, injecting or applying fertilizers, pesticides or other
				hazardous systems, a reduced pressure principle assembly.
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.6721 - Cross-connections and backflow: Minimum types of protection for other service connections; resolution of conflicting requirements; imposition of more stringent requirements

Current through June 11, 2024
1. The Division or
				the appropriate district board of health shall determine, on a case-by-case
				basis, the minimum type of protection from cross-connection required for any
				type of service connection which is not specified in NAC 445A.67185 to
				445A.67255, inclusive.
2. If there
				is any conflict between any of the provisions of NAC 445A.67185 to 445A.67255,
				inclusive, regarding the type of protection from cross-connection required for
				a particular type of service connection, the most stringent of those provisions
				prevails.
3. The Division or the
				appropriate district board of health or supplier of water may impose
				requirements regarding the installation and use of assemblies for the
				prevention of backflow which are more stringent than the provisions of NAC
				445A.67185 to 445A.67255, inclusive.
Added to NAC by Bd. of
				  Health, eff. 2-20-97; A by Environmental Comm'n by R194-08,
				  10-27-2009
NRS
					 445A.860
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.67215 - Cross-connections and backflow: Service connection to fire sprinkler system

Current through June 11, 2024
1. A supplier of water shall ensure that:
(a) An appropriate assembly for the
				prevention of backflow is installed at each service connection between the
				public water system and a fire sprinkler system; and
(b) The assembly is:
(1) Tested upon installation; and
(2) Maintained and tested, and the results of
				those tests logged, annually.
The testing required by this subsection must be conducted by
				  a certified backflow prevention assembly tester.
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.6722 - Cross-connections and backflow: Design of fire sprinkler system

Current through June 11, 2024
The designer of a fire sprinkler system shall ensure that,
				  based upon the placement of any reduced pressure principle assembly or reduced
				  pressure detector assembly:
1. An
				antifreeze loop or the total line of the fire sprinkler system is able to
				accommodate the thermal expansion of any antifreeze; or
2. If necessary, an expansion tank is
				provided to accommodate the thermal expansion of any antifreeze.
Added to NAC by Bd. of
				  Health, eff. 2-20-97
NRS
					 445A.860
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.67225 - Cross-connections and backflow: Conditions to provision of service to certain fire sprinkler systems

Current through June 11, 2024
If any backflow involving a fire sprinkler system threatens a
				  public water system, the supplier of water shall require, as a condition to the
				  provision of service to the fire sprinkler system:
1. The installation of an assembly for the
				prevention of backflow in accordance with the requirements of NAC
				445A.67215.
2. An analysis to
				determine how the assembly will affect the pressure and rate of flow of water
				available to the fire sprinkler system.
3. The modification of the fire sprinkler
				system, and the riser and water service lateral for the fire sprinkler system,
				in such a manner as necessary to ensure adequate fire flow.
Added to NAC by Bd. of
				  Health, eff. 2-20-97
NRS
					 445A.860
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.6723 - Cross-connections and backflow: Installation of air gap

Current through June 11, 2024
Except as otherwise authorized by the Division or the
				  appropriate district board of health, if an air gap is installed on a service
				  connection:
1. The air gap must be
				located as closely as practicable to the service connection, on the opposite
				side of the service connection from the public water system.
2. All piping from the service connection to
				the receiving tank must be above grade and visible.
3. There must be no type of outlet, tee, tap,
				take-off or connection to or from the service line between the service
				connection and the air gap.
4.
				Expansion tanks or pressure relief valves must be provided as appropriate for
				the potential threat of water hammer and thermal expansion.
Added to NAC by Bd. of
				  Health, eff. 2-20-97; A by Environmental Comm'n by R194-08,
				  10-27-2009
NRS
					 445A.860
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.67235 - Cross-connections and backflow: Installation of reduced pressure principle assembly

Current through June 11, 2024
Except as otherwise authorized by the Division or the
				  appropriate district board of health, if a reduced pressure principle assembly
				  is installed on a service connection:
1. The reduced pressure principle assembly
				must be installed:
(a) In a horizontal and
				level position, except that the reduced pressure principle assembly may be
				installed in a vertical position if the assembly has been:
(1) Specifically designed for operation in
				that position; and
(2) Tested and
				certified to be suitable for operation in that position by an approved backflow
				testing laboratory.
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.6724 - Cross-connections and backflow: Installation of double check valve assembly

Current through June 11, 2024
Except as otherwise authorized by the Division or the
				  appropriate district board of health, if a double check valve assembly is
				  installed on a service connection:
1.
				The double check valve assembly must be installed:
(a) In a horizontal and level position,
				except that the double check valve assembly may be installed in a vertical
				position if the assembly has been:
(1)
				Specifically designed for operation in that position; and
(2) Tested and certified to be suitable for
				operation in that position by an approved backflow testing
				laboratory.
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.67245 - Cross-connections and backflow: Duties of certified backflow prevention assembly tester

Current through June 11, 2024
A certified backflow prevention assembly tester shall:
1. Perform his or her field testing of
				assemblies for the prevention of backflow in accordance with the provisions of
				the
Manual of Cross-Connection Control
.
2. Use, for the testing of reduced pressure
				principle assemblies, double check valve assemblies and pressure vacuum
				breakers, a differential pressure gauge that has:
(a) A differential range of at least zero to
				15 psi; and
(b) Graduations of not
				more than 0.2 psi.
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.6725 - Cross-connections and backflow: Use of vacuum breakers

Current through June 11, 2024
1. An
				atmospheric vacuum breaker or pressure vacuum breaker may be used only for
				protection against pollution or contamination under conditions of
				backsiphonage.
2. If an atmospheric
				vacuum breaker is used:
(a) The vacuum breaker
				must be installed not less than 6 vertical inches above the highest point of
				the downstream piping.
(b) Any
				associated shutoff valve must be installed upstream from the vacuum
				breaker.
(c) The vacuum breaker
				must not be subjected to operating pressure for more than 12 hours in any
				24-hour period.
(d) Flow from the
				protected fixture must be to the atmosphere.
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.67255 - Cross-connections and backflow: Restrictions on use of certain valves and piping assemblies

Current through June 11, 2024
1. A stop and waste
				valve must not be used on a service line.
2. If a valve or piping assembly, including a
				frost-free riser, has an opening that is subject to flooding, the valve or
				piping assembly must not be used on a service line unless:
(a) The valve or piping assembly is
				adequately protected by an assembly for the prevention of backflow;
				and
(b) If the piping assembly is a
				frost-free riser, the riser is equipped with appropriate valves and a
				connection for the introduction of compressed air, pursuant to which water may
				be purged and the system prepared for winter.
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.6726 - Disinfection of facility for collection, treatment or distribution of water

Current through June 11, 2024
Before a supplier of water initially uses a facility for the
				  collection, treatment or distribution of water, the facility must be
				  disinfected in accordance with
American Water Works Association
				  Standards
C651, C652, C653 and C654.
Added to NAC by Bd. of
				  Health, eff. 2-20-97
NRS
					 445A.860
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.67265 - Duties after loss of pressure in distribution system

Current through June 11, 2024
Except as otherwise authorized by the Division, if any part
				  of a distribution system loses all pressure, the supplier of water shall,
				  before placing that part of the distribution system back into service:
1. Inform the customers of the public water
				system within the affected portion of its area of service of the need to boil
				their water before consumption.
2.
				Collect, on 2 or more consecutive days, samples of water from that part of the
				distribution system which indicate that the presence of any coliform bacteria
				complies with primary standards.
Added to NAC by Bd. of
				  Health, eff. 2-20-97; A by Environmental Comm'n by R194-08,
				  10-27-2009
NRS
					 445A.860
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.6727 - Requirements after cleaning or repair of water main

Current through June 11, 2024
1.
				Except as otherwise provided in subsection 2, after a water main is cleaned or
				repaired, and before the water main is placed back into service:
(a) The water main must be disinfected in
				accordance with
American Water Works Association Standard
C651, as adopted by reference in NAC 445A.6663. The disposal of any spent
				chlorine solutions must be coordinated with the Bureau of Water Pollution
				Control of the Division.
(b) An
				analysis of the water main which indicates that it meets primary standards for
				coliform bacteria must be obtained and reported to the Division or the
				appropriate district board of health.
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.67275 - Water hauling: Definitions

Current through June 11, 2024
As used in NAC 445A.67275 to 445A.6731, inclusive, unless the
				  context otherwise requires:
1.
				"Supplier of water" includes any person or other entity, including a
				governmental entity, which performs water hauling.
2. "Water hauling" means the bulk hauling, by
				any means of transportation, of water for introduction into a public water
				system.
Added to NAC by Bd. of
				  Health, eff. 2-20-97
NRS
					 445A.860
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.6728 - Water hauling: General requirements

Current through June 11, 2024
1. Water
				hauling may be used only:
(a) In an emergency
				or on a temporary basis when water hauling is the only means of distributing
				drinking water to the customers of a public water system; and
(b) If:
(1)
				The proposal for water hauling is submitted to and approved by the Division or
				the appropriate district board of health before the water hauling
				begins;
(2) Each vehicle to be used
				for water hauling is inspected by the Division or the appropriate district
				board of health before it is used for water hauling and annually
				thereafter;
(3) The supplier of
				water ensures that the water hauling complies with NAC
				445A.67275 to
				445A.6731,
				inclusive.
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.67285 - Water hauling: Sanitation and disinfection

Current through June 11, 2024
If the Division or the appropriate district board of health
				  approves the use of water hauling:
1.
				The water must be obtained only from a source that:
(a) Meets primary and secondary standards;
				and
(b) Has been approved by the
				Division or the appropriate district board of health before the water is
				obtained.
The supplier of water shall provide the Division or the
				  appropriate district board of health with evidence of compliance with this
				  subsection.
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.6729 - Water hauling: Log of activities

Current through June 11, 2024
If the Division or the appropriate district board of health
				  approves the use of water hauling, the supplier of water shall maintain a log
				  of its activities relating to the water hauling which must include:
1. The dates of hauling.
2. The amounts hauled.
3. An identification of each vehicle used for
				hauling.
4. The source of the water
				hauled.
5. The concentration of
				chlorine in the water hauled.
6.
				The places where the water was delivered.
7. Copies of any relevant contracts or other
				agreements.
8. The results of the
				required analyses for coliform bacteria.
Added to NAC by Bd. of
				  Health, eff. 2-20-97; A by Environmental Comm'n by R194-08,
				  10-27-2009
NRS
					 445A.860
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.67295 - Water hauling: Construction of equipment

Current through June 11, 2024
If the Division or the appropriate district board of health
				  approves the use of water hauling:
1.
				Any containers, tanks, hoses, fittings, piping or other equipment used to
				store, haul or transfer the water must be constructed of materials and coatings
				determined to be compatible with drinking water.
2. The tanks used for hauling and equipment
				used for the delivery of the water must be readily accessible for
				cleaning.
3. A tank used for
				hauling must have:
(a) A manhole of adequate
				size for the maintenance of the tank.
(b) A drain on the bottom which is adequate
				for the complete drainage of the tank.
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.67305 - Water hauling: Marking of vehicles

Current through June 11, 2024
If the Division or the appropriate district board of health
				  approves the use of water hauling, a vehicle used for that purpose must be
				  marked in such a manner that:
1. The
				name and address of the person or other entity responsible for performing the
				water hauling appear on both sides of the tank, or on both of the doors of the
				vehicle, in letters that are completely legible at all times from a distance of
				50 feet.
2. The words "domestic
				water," "drinking water," or "potable water" appear on both sides of the tank
				in letters that are completely legible at all times.
Added to NAC by Bd. of
				  Health, eff. 2-20-97; A by Environmental Comm'n by R194-08,
				  10-27-2009
NRS
					 445A.860
Nevada Administrative Code › Chapter 445A - Water Controls › PUBLIC WATER SYSTEMS › Design, Construction, Operation and Maintenance › Section 445A.6731 - Water hauling: Equipment of vehicles for disinfection and testing

Current through June 11, 2024
If the Division or the appropriate district board of health
				  approves the use of water hauling, a vehicle used for that purpose must have
				  available:
1. A chorine solution with
				a concentration of not less than 50 mg/l nor more than 100 mg/l for the
				disinfection of any hose, fitting or cap that becomes contaminated during the
				transfer of water.
2. Strips or
				other devices for testing the concentration of chlorine which are:
(a) Approved by the Division or the
				appropriate district board of health; and
(b) Sufficient for determining the chlorine
				residual in the hauled water and in the solution required by subsection
				1.
Nevada Administrative Code › Chapter 445A - Water Controls › ACCOUNT FOR THE REVOLVING FUND AND ACCOUNT FOR SET-ASIDE PROGRAMS › General Provisions › Section 445A.6751 - Definitions

Current through June 11, 2024
As used in NAC
				  445A.6751 to
				  445A.67644, inclusive, and
				  sections 2 to 5, inclusive, unless the context otherwise requires, the words
				  and terms defined in NAC
				  445A.67511 to
				  445A.67557, inclusive, and
				  section 2 have the meanings ascribed to them in those
				  sections.
Added to
				  NAC by Bd. of Health by R067-98, eff. 7-23-98; A by Environmental Comm'n by
				  R128-04, 2-14-2005; A by
				  R099-14,
				  eff. 10/24/2014; A by
				  R109-22A,
				  eff. 12/29/2022
NRS 445A.270
Nevada Administrative Code › Chapter 445A - Water Controls › ACCOUNT FOR THE REVOLVING FUND AND ACCOUNT FOR SET-ASIDE PROGRAMS › General Provisions › Section 445A.67511 - "Account for the Revolving Fund" defined

Current through June 11, 2024
"Account for the Revolving Fund" has the meaning ascribed to
				  it in NRS
				  NRS
				  445A.203.
Added to NAC by Bd. of
				  Health by R067-98, eff. 7-23-98
NRS
					 445A.270
Nevada Administrative Code › Chapter 445A - Water Controls › ACCOUNT FOR THE REVOLVING FUND AND ACCOUNT FOR SET-ASIDE PROGRAMS › General Provisions › Section 445A.67512 - "Account for Set-Aside Programs" defined

Current through June 11, 2024
"Account for Set-Aside Programs" has the meaning ascribed to
				  it in NRS
				  NRS
				  445A.205.
Added to NAC by Bd. of
				  Health by R067-98, eff. 7-23-98
NRS
					 445A.270
Nevada Administrative Code › Chapter 445A - Water Controls › ACCOUNT FOR THE REVOLVING FUND AND ACCOUNT FOR SET-ASIDE PROGRAMS › General Provisions › Section 445A.67513 - "Acute health concern" defined

Current through June 11, 2024
"Acute health concern" means a concern regarding human health
				  that occurs when exposure to a contaminant causes an immediate risk to human
				  health and causes symptoms to occur quickly.
Added to NAC by Bd. of
				  Health by R067-98, eff. 7-23-98
NRS
					 445A.270
Nevada Administrative Code › Chapter 445A - Water Controls › ACCOUNT FOR THE REVOLVING FUND AND ACCOUNT FOR SET-ASIDE PROGRAMS › General Provisions › Section 445A.67514 - "Administrator" defined

Current through June 11, 2024
"Administrator" has the meaning ascribed to it in NRS
				  NRS
				  445A.207.
Added to NAC by Bd. of
				  Health by R067-98, eff. 7-23-98
NRS
					 445A.270
Nevada Administrative Code › Chapter 445A - Water Controls › ACCOUNT FOR THE REVOLVING FUND AND ACCOUNT FOR SET-ASIDE PROGRAMS › General Provisions › Section 445A.67515 - "Applicant" defined

Current through June 11, 2024
"Applicant" means a public water system that is seeking to
				  obtain a loan from the Account for the Revolving Fund.
Added to NAC by Bd. of
				  Health by R067-98, eff. 7-23-98
NRS
					 445A.270
Nevada Administrative Code › Chapter 445A - Water Controls › ACCOUNT FOR THE REVOLVING FUND AND ACCOUNT FOR SET-ASIDE PROGRAMS › General Provisions › Section 445A.67517 - "Board for Financing Water Projects" defined

Current through June 11, 2024
"Board for Financing Water Projects" means the Board created
				  pursuant to NRS
				  NRS
				  349.957.
Added to NAC by Bd. of
				  Health by R067-98, eff. 7-23-98; A by Environmental Comm'n by R128-04,
				  2-14-2005
NRS
					 445A.270
Nevada Administrative Code › Chapter 445A - Water Controls › ACCOUNT FOR THE REVOLVING FUND AND ACCOUNT FOR SET-ASIDE PROGRAMS › General Provisions › Section 445A.67518 - "Capability" defined

Current through June 11, 2024
1. "Capability"
				means:
(a) The technical capability of a
				public water system, as defined in
				NRS
				445A.847;
(b) The managerial capability of a public
				water system, as defined in
				NRS
				445A.827;
(c) The financial capacity of a public water
				system, as defined in
				NRS
				445A.817; and
(d) The ability to satisfy the requirements
				of chapter 445A of NRS and this chapter.
Nevada Administrative Code › Chapter 445A - Water Controls › ACCOUNT FOR THE REVOLVING FUND AND ACCOUNT FOR SET-ASIDE PROGRAMS › General Provisions › Section 445A.67519 - "Capitalization grant" defined

Current through June 11, 2024
"Capitalization grant" has the same meaning as a federal
				  grant as defined in
				  NRS
				  445A.225.
Added to NAC by Bd. of
				  Health by R067-98, eff. 7-23-98
NRS
					 445A.270
Nevada Administrative Code › Chapter 445A - Water Controls › ACCOUNT FOR THE REVOLVING FUND AND ACCOUNT FOR SET-ASIDE PROGRAMS › General Provisions › Section 445A.6752 - "Categorical exclusion" defined

Current through June 11, 2024
"Categorical exclusion" means an exemption from being
				  required to comply with the provisions of NAC 445A.67587 to 445A.67612,
				  inclusive, that is granted to an applicant for a proposed water project:
1. Which will not individually or
				cumulatively have a significant effect on the human environment; and
2. For which no environmental assessment or
				environmental impact statement is required pursuant to NAC 445A.67587 and
				445A.67594 to 445A.67612, inclusive.
Added to NAC by Bd. of
				  Health by R067-98, eff. 7-23-98; A by Environmental Comm'n by R128-04,
				  2-14-2005
NRS
					 445A.270