R309. Environmental Quality, Drinking Water.
R309-540. Facility Design and Operation: Pump Stations.
The purpose of this rule is to provide specific requirements for pump stations utilized to deliver drinking water to facilities of public water systems. It is intended to be applied in conjunction with rules R309-500 through R309-550. Collectively, these rules govern the design, construction, operation and maintenance of public drinking water system facilities. These rules are intended to assure that such facilities are reliably capable of supplying adequate quantities of water which consistently meet applicable drinking water quality requirements and do not pose a threat to general public health.
This rule is promulgated by the Drinking Water Board as authorized by Title 19, Environmental Quality Code, Chapter 4, Safe Drinking Water Act, Subsection 104(1)(a)(ii) of the Utah Code and in accordance with 63G-3 of the same, known as the Administrative Rulemaking Act.
Definitions for certain terms used in this rule are given in R309-110 but may be further clarified herein.
Pumping stations shall be designed to maintain the sanitary quality of water and to provide ample quantities of water at sufficient pressure.
R309-540-5. Pumping Facilities.
(a) The pumping station shall be designed such that:
(i) the proposed site will meet the requirements for sanitary protection of water quality, hydraulics of the system, and protection against interruption of service by fire, flood or any other hazard;
(ii) the access to the pump station shall be six inches above the surrounding ground and the station located at an elevation which is a minimum of three feet above the 100-year flood elevation, or three feet above the highest recorded flood elevation, which ever is higher, or protected to such elevations;
(iii) the station is readily accessible at all times unless permitted to be out of service for the period of inaccessibility;
(iv) surrounding ground is graded so as to lead surface drainage away from the station; and
(v) the station is protected to prevent vandalism and entrance by animals or unauthorized persons.
(2) Pumping Stations.
(a) Building structures for both raw and drinking water shall:
(i) have adequate space for the installation of additional pumping units if needed, and for the safe servicing of all equipment;
(ii) be of durable construction, fire and weather resistant, with outward-opening doors;
(iii) have an interior floor elevation at least six inches above the exterior finished grade;
(iv) have any underground facilities, especially wet wells, waterproofed;
(v) have all interior floors drained in such a manner that the quality of drinking water contained in any wet wells will not be endangered. All floors shall slope at least one percent (one foot every 100 feet) to a suitable drain; and
(vi) provide a suitable outlet for drainage from pump glands without discharging onto the floor.
(b) Suction wells shall:
(i) be watertight;
(ii) have floors sloped to permit removal of water and entrained solids;
(iii) be covered or otherwise protected against contamination; and
(iv) have two pumping compartments or other means to allow the suction well to be taken out of service for inspection, maintenance, or repair.
(c) Servicing equipment shall consist of:
(i) crane-ways, hoist beams, eyebolts, or other adequate facilities for servicing or removal of pumps, motors or other heavy equipment;
(ii) openings in floors, roofs or wherever else needed for removal of heavy or bulky equipment; and
(iii) a convenient tool board, or other facilities as needed, for proper maintenance of the equipment.
(d) Stairways and ladders shall:
(i) be provided between all floors, and in pits or compartments which must be entered; and
(ii) have handrails on both sides, and treads of non-slip material. They shall have risers not exceeding nine inches and treads wide enough for safety.
(e) Heating provisions shall be adequate for:
(i) the comfort of the operator; and
(ii) the safe and efficient operation of the equipment.
(f) Ventilation shall:
(i) conform to existing local and/or state codes; and