NAC445A.67055. Pumping facilities: Heating, ventilation and lighting.

     1. If any equipment of a pumping system is used during winter, the equipment must be adequately heated in a manner that ensures the safe and efficient operation of the components of the pumping system. If a pump house is not occupied by any personnel, the heat must only be sufficient to prevent any freezing of the equipment and processes for treatment. If a pumping installation will not be used during winter, the equipment must be isolated and drained in such a manner as to prevent damage from freezing.

     2. A pumping station must have adequate ventilation, as provided by windows, doors, roof ventilators and other means. Except as otherwise approved by the Division or the appropriate district board of health, forced ventilation that results in at least six changes of air per hour must be provided for all rooms, compartments, pits, vaults and other enclosures below the ground floor, and in any area where an unsafe atmosphere may develop or excessive heat may build up.

     3. A pumping station must be adequately lighted in a manner that provides a safe and functional environment for work. The electrical wiring for the lighting system must conform to applicable electrical and building codes.

     (Added to NAC by Bd. of Health, eff. 2-20-97; A by Environmental Comm’n by R194-08, 10-27-2009)