Administrative Rules of Montana › Department 17 - ENVIRONMENTAL QUALITY › Chapter 17.38 - PUBLIC WATER AND SEWAGE SYSTEM REQUIREMENTS › Subchapter 17.38.1 - Public Water and Sewer Plans, Cross Connections, and Drilling Water Wells › Rule 17.38.101 - PLANS FOR PUBLIC WATER SUPPLY OR PUBLIC SEWAGE SYSTEM

Current through Register Vol. 13, July 5, 2024
(1) For purposes of this rule, "delegated
				division of local government" means a local government that has been delegated
				authority pursuant to ARM
				17.38.102 and
				75-6-121, MCA, to review and
				approve plans and specifications for public water supply or public sewage
				systems, as designated in the written delegation.
(2) The purpose of this rule is to assure the
				protection of public health and the quality of state waters by requiring review
				and approval, by either the department or a delegated division of local
				government, of plans and specifications for siting, construction, and
				modification of public water supply and public sewage systems prior to the
				beginning of construction.
(3) As
				used in this rule, the following definitions apply in addition to those in
				75-6-102, MCA:
(a) "Accessory building" means a subordinate
				building or structure on the same lot as the main building, which is under the
				same ownership as the main building, and which is devoted exclusively to an
				accessory use such as a garage, workshop, art studio, guest house, or church
				rectory;
(b) "Applicant" means a
				person who submits plans and specifications for approval pursuant to this
				rule;
(c) "Gray water" is defined
				in 75-5-325, MCA.
(d) "Main" means any line providing water or
				sewer to multiple service connections, any line serving a water hydrant that is
				designed for fire fighting purposes, or any line that is designed to water or
				sewer main specifications;
(e)
				"Public sewage system" means a system of collection, transportation, treatment,
				or disposal of sewage that serves 15 or more families or 25 or more persons
				daily for any 60 or more days in a calendar year. Public sewage systems are
				further categorized as follows:
(i) "Community
				sewage system" means a public sewage system that serves at least 15 service
				connections used by year-round residents or that regularly serves at least 25
				year-round residents; or
(ii)
				"Non-community sewage system" means any public sewage system which is not a
				community sewage system;
(f) "Reclaimed wastewater" is defined in
				75-6-102, MCA;
(g) "Rural distribution system" means those
				portions of a water distribution system that are outside the limits of a city
				or town and that:
(i) have fewer than four
				service connections per mile on average;
(ii) are constructed of water mains six
				inches in diameter or less; and
(iii) do not provide fire flows.
(h) "Service connection" means a
				line that provides water or sewer service to a single building or main building
				with accessory buildings, and that is designed to service line
				specifications;
(i) "Sewage system"
				means a device for collecting or conducting sewage, industrial wastes, or other
				wastes to an ultimate disposal point;
(j) "Subsurface sewage treatment system"
				means the method of sewage treatment in which the effluent is applied below the
				soil surface;
(k) "Wastewater"
				means sewage, industrial waste, other wastes, or any combination
				thereof;
(l) "Wastewater system"
				means a public sewage system or other system that collects, transports, treats,
				or disposes of industrial wastes;
(m) "Professional engineer" means an engineer
				licensed or otherwise authorized to practice engineering in Montana pursuant to
				Title 37, chapter 67, MCA;
(n)
				"Public water supply system" means a system for the provision of water for
				human consumption from a community well, water hauler for cisterns, water
				bottling plant, water dispenser, or other water supply that has at least 15
				service connections or that regularly serves at least 25 persons daily for any
				60 or more days in a calendar year. Public water supply systems are further
				categorized as follows:
(i) "Community water
				system" means a public water supply system that serves at least 15 service
				connections used by year-round residents or that regularly serves at least 25
				year-round residents; or
(ii)
				"Non-community water system" means a public water supply system that is not a
				community water system.
(o) "Development plan" has the meaning in
				[Section 1(9)(a), SB 237]; and
(p)
				"Rated capacity" has the meaning in [Section 1(9)(b), SB 237].