Alaska Administrative Code › Title 18 - Environmental Conservation › Chapter 30 - Environmental Sanitation › Article 5 - Public Swimming Pools and Spas › 18 AAC 30.510 - Design and materials

Current through May 31, 2024
(a) Nonabsorbent materials must be used to
				construct pools or pool decks. Mildly abrasive, nonslip surfaces must be used
				on pool decks, steps, ramps, and diving boards. Pools and pool decks must be
				constructed of light-colored, durable, and nonabsorbent materials that are
				nontoxic to humans and the environment.
(b) Decks, side walls, bottom surfaces,
				gutters, and components must have smooth, easily cleanable surfaces without
				sharp edges or protrusions.
(c) A
				nonslip handhold must be used around the perimeter of a pool, and at steps and
				ladders.
(d) Steps and ladders must
				provide easy access to both ends of the pool and must drain completely when the
				pool is emptied. Step risers must be no higher than 12 inches, and must be
				uniform in height, except that the bottom riser may be less than the uniform
				height.
(e) Aluminum pools must be
				designed and maintained to minimize the effects of electrolysis. Anodes and
				cathodes must be installed and maintained in aluminum pools.
(f) An absolute separation is required
				between the pool deck and the spectator area. There must be no means by which
				bathers can directly enter the spectator area, or by which spectators can
				directly enter the pool deck.
(g)
				Entrances to the pool deck from locker rooms must be at the shallow end of the
				pool.
(h) The ventilation system in
				a pool enclosure must provide a minimum rate of 20 cubic feet per person per
				minute, or six complete air exchanges per hour, whichever is greater. The
				ventilation system must prevent direct drafts on bathers and must minimize
				condensation.
(i) Natatorium
				lighting must be designed to permit the replacement of light bulbs or
				tubes.
(j) The circulation system
				must be designed for 100 percent flow through the overflow channels and 100
				percent flow through the main drains. During normal operations the overflow
				channels must use at least 60 percent of the return flow.
(k) Hose bibs with back siphonage preventers
				must be used around the deck so that all parts of the deck may be reached with
				a 50-foot hose.
(l) At least one
				drinking fountain is required within the pool enclosure.
(m) Diatomaceous earth filters must have a
				maximum flow rate as recommended by NSF Standard 50, Swimming Pools, Spas, or
				Hot Tubs Circulation System Components, dated June 1, 1992, the requirements of
				which are incorporated by reference in this chapter, and in no case may exceed
				1.5 gal/ft
2
/min. Rapid sand filters must have a maximum flow
				rate of 3 gal/ft
2
/min. High rate sand filters may not exceed
				flow rates of 20 gal/ft
2
/min. unless approved by the
				department. Each pressure filter must have a pressure gauge on each side of the
				pressure filter (influent and effluent); or, for a vacuum filter, one pressure
				gauge after the filter but before the pump. In addition, each filter must have
				a gauge measuring the rate of flow through the filter system. This gauge must
				be installed in a readily visible location, have a scale range approximately
				one-half times the design flow rate, and be accurate to within 10 percent of
				the true flow.
(n) Pools built
				after June 4, 1983 must have a continuous disinfection system with an automatic
				sensor control.
(o) Plans submitted
				under 18 AAC 30.950(a),
				including floor plans, specifications, and reports, must contain information
				sufficient to demonstrate to the department that the proposed pool or
				improvements will comply with this chapter. The plans must be to scale, and
				must
(1) include a floor plan showing the
				location of the pool, deck, dressing rooms, spectator area, mechanical room,
				and all other areas and rooms provided in conjunction with the pool facility;
				and
(2) clearly describe
(A) construction materials and finishes of
				floors, walls, and ceilings;
(B)
				type and placement of light fixtures;
(C) heating, ventilation, and air
				conditioning;
(D) pool construction
				materials, dimensions, slopes, area, and volume;
(E) flow rate, turnover, and filtration
				rate;
(F) anticipated maximum and
				average swimmer load;
(G) analyses
				of the source, quantity, and quality of the water supply, as determined under
				18 AAC 80.250, including analyses of the alkalinity, pH, iron, and
				manganese;
(H) the filtration
				system recirculation equipment, and piping, including
(i) hydraulic computations that include head
				loss;
(ii) pump curves showing that
				the proposed recirculation pump will adequately handle proposed
				flows;
(iii) schematic diagrams,
				including plan and elevation views; and
(iv) construction details, including
				dimensions, appropriate cross sections, and color coding of the piping;
				and
(I) complete,
				detailed specifications for all other equipment, components, fixtures, and
				furnishings to be installed at the pool facility.