The following words and terms, when used in this article shall have the following meanings, unless the context clearly indicates otherwise. In addition, other technical terms used shall have the meanings or definitions listed in the latest edition of “Glossary, Water and Wastewater Control Engineering,” prepared by a joint editorial board representing the American Public Health Association, American Society of Civil Engineers, American Water Works Association, and the Water Environment Federation.
ASME standards.
The standards of the American Society of Mechanical Engineers, 346 East 47th Street, New York, New York 10017.
ASTM standards.
The standards of the American Society for Testing and Materials, 1916 Race Street, Philadelphia, Pennsylvania 19102.
Auxiliary power.
Either mechanical power or electric generators which can enable the system to provide water under pressure to the distribution system in the event of a local power failure. With the approval of the city, dual primary electric service may be considered as auxiliary power in areas which are not subject to large scale power outages due to natural disasters.
AWWA standards.
The latest edition of the applicable standards as approved and published by the American Water Works Association, 6666 W. Quincy Avenue, Denver, Colorado 80235.
Contamination.
The presence of any foreign substance (organic, inorganic, radiological or biological) in water which tends to degrade its quality so as to constitute a hazard or impair the usefulness of the water.
Intruder resistant fence.
A fence six feet or more in height, constructed of wood, concrete, masonry, or metal with three strands of barbed wire extending outward from the top of the fence at a 45-degree angle. In lieu of the barbed wire, the fence must be eight feet in height. The fence must be in good repair and close enough to surface grade to prevent intruder passage.
NSF.
The National Sanitation Foundation and refers to the listings developed by the Foundation, P.O. Box 1468, Ann Arbor, Michigan 48106.
Psi.
Pounds per square inch.
Service pump.
Any pump that takes treated water from storage and discharges to the distribution system.
Transfer pump.
Any pump which conveys water from one point to another within the treatment process or which conveys water to storage facilities prior to distribution.
(1996 Code, sec. 86-46)
(a) 
The provisions of this article are deemed necessary to promote the health, safety, property and general welfare of the residents of the city. The master plan of the city is designed to achieve the following general goals:
(1) 
Preserve the naturally wooded, rural character of the city and its wildlife;
(2) 
Protect the unique environment and quality of life enjoyed by its residents;
(3) 
Permit reasonable and appropriate development consistent with these goals;
(4) 
Promote cooperation with other political subdivisions in this area; and
(5) 
Promulgate the need for cleanliness of our street right-of-ways and beautification throughout the area.
(b) 
In view of these goals potable water storage tanks are permitted and when hydraulically possible shall be buried or partially buried. No elevated storage tanks are permitted.
(1996 Code, sec. 86-47)
(a) 
Construction of potable water storage tanks in the city will require that a special use permit be secured from the city in accordance with the requirements outlined in the zoning ordinance as amended. Setback lines for all tanks shall be a minimum of 100 feet from all property lines with a maximum height of 30 feet above existing natural grade elevation. Lot size shall be a minimum of two acres and zoned GUI, governmental, utility and institutional district. A maximum of one potable water storage tank shall be constructed per two acres.
(b) 
Landscaping shall be preserved in its natural state to the greatest extent feasible with additional landscaping added subsequent to completion of tank construction as approved by the city.
(c) 
Potable water storage tanks shall conform with the requirements outlined in this article and the Manual on Rules and Regulations for Public Water Systems, promulgated by the state commission on environmental quality in their current edition. Where any conflicts exist between the state standards and the city standards, the city standards shall govern, provided such standards do not fall below state standards.
(d) 
All potable water storage reservoirs and pressure maintenance facilities must be enclosed by an intruder-resistant fence with lockable gates as approved by the city.
(e) 
No potable water supply storage, ground storage or hydropneumatic tank shall be located within 1,500 feet of any public or private sewage treatment plant or any land which is spray irrigated with treated sewage effluent.
(1996 Code, sec. 86-48)
(a) 
Capacity.
The capacity of a potable water storage tank shall be governed by the following size limitations:
(1) 
Height, maximum of 30 feet.
(2) 
Diameter, maximum of 80 feet.
(b) 
Location.
Potable water storage tanks shall be constructed partially or wholly aboveground. No sanitary sewers shall be located within 50 feet or septic tank soil absorption system located within 150 feet of the reservoir if the reservoir is partially below or at ground level. However, if the sanitary sewers are constructed of 150 psi pressure rated pipe with watertight joints as used in water main construction, they may be located at distances less than 50 feet from an underground treated water reservoir.
(c) 
Design and construction.
All facilities for potable water storage shall be covered and designed, fabricated, erected, tested and disinfected in strict accordance with current AWWA standards and shall be provided with the minimum number, size and type of roof vents, manways, drains, sample connections, access ladders, overflows, liquid level indicators and other appurtenances as specified in these rules. Bolted tanks, when permitted, shall be designed, fabricated, erected and tested in strict accordance with current AWWA Standard D103. The roof of all tanks shall be designed and erected so that no water ponds at any point on the roof and, in addition, no area of the roof shall have a slope of less than three-quarter inch in 12 inches.
(1) 
Owner shall use innovative approaches to present tank designs that aesthetically blend in with the neighborhood. Shown below are two examples of designs where exposed aggregate architectural panels are used to create a pleasing addition in a community.
(2) 
Overflows shall be designed in strict accordance with current AWWA standards and shall terminate with a gravity hinged and weighted cover. The cover shall fit tightly with no gap over 1/16 inch. If the overflow terminates at any point other than the ground level, it shall be located near enough and at a position accessible from a ladder of the balcony for inspection purposes. All overflows of water shall be contained within an erosionproof channel and directed to a public street and away from any private property.
(3) 
All potable water storage tanks shall be equipped with a liquid level indicator located at the tank site. The indicator can be either an ultrasonic level indicator, or a pressure gauge calibrated in feet of water for ground reservoirs and standpipes. Pressure gauges must not be less than three inches in diameter and calibrated at not more than two-foot intervals.
(4) 
Inlet and outlet connections shall be located so as to prevent shortcircuiting or stagnation of water.
(5) 
Potable water storage tanks shall be thoroughly tight against leakage, shall be situated above the groundwater table and shall have no walls in common with any other structure.
(6) 
If potable water storage tank drains are provided, they shall not be connected to any waste or sewage disposal system. The drains shall be constructed so that they are not a potential agent in the contamination of the stored water.
(7) 
All potable water storage tanks, ground reservoirs and standpipes shall be painted, and maintained in strict accordance with current AWWA standards. However, no temporary coatings, wax grease coatings, coating materials containing lead or any other coating will be allowed which is not approved for use as a contact surface with potable water by the United States Public Health Service (USPHS), the United States Environmental Protection Agency (EPA), National Sanitation Foundation (NSF), or the United States Food and Drug Administration (FDA).
(1996 Code, sec. 86-49)
(a) 
Capacity.
Hydropneumatic tanks are limited in size to 2,000 gallons capacity.
(b) 
Location.
All hydropneumatic tanks must be located wholly above grade and must be of steel construction with welded seams.
(c) 
Design and construction.
(1) 
Metal thickness for hydropneumatic tanks shall be sufficient to provide at least a minimum of one-eighth inch corrosion allowance and to withstand the highest expected working pressures with a four-to-one factor of safety. Tanks of 1,000 gallon capacity or larger must meet ASME section VIII, division 1 codes and construction regulations. An ASME name plate must be permanently attached for those tanks.
(2) 
All hydropneumatic tanks shall be provided with a pressure release device and an easily readable pressure gauge.
(3) 
Facilities shall be provided for maintaining the air-water-volume at the design water level and working pressure. A sight glass or other gauge must be provided for all tanks greater than 1,000 gallon capacity. Galvanized tanks which are not provided with the necessary fittings and which were in operation on April 9, 1989, shall be exempt from this requirement.
(4) 
Protective paint or coating shall be applied to the inside portion of any pressure tank. The coating shall be as specified in section 18.02.034(c)(7).
(5) 
No tank that has been used to store any material other than potable water may be considered for use in a public water system. A letter from previous owner or owners must be provided which states the use of the tank.
(6) 
Hydropneumatic tank installation shall be equipped with slow closing valves and time delay pump controls to eliminate water hammer and reduce the chance of tank failure.
(1996 Code, sec. 86-50)
(a) 
It shall be unlawful for any person to erect, construct, enlarge, alter, repair, move, improve, remove, demolish, blast, excavate, grade, convert, equip, use or occupy, or maintain any building or structure or any portion of any building or structure in the city, contrary to or in violation of any provision of this article, or to cause, permit or suffer the same to be done.
(b) 
Notwithstanding any provision in this article to the contrary, no provision or penalty contained in this article shall apply to a water storage tank, pump station, building or other related facilities or to the maintenance thereof which existed prior to April 9, 1989. No substantial alteration of existing water storage tanks, in excess of the capacity which existed on April 9, 1989, may be made without compliance with provisions of this article.
(c) 
Any person violating any provision of this article shall be deemed guilty of a misdemeanor, and upon the conviction of any such violation, such person shall be punishable as provided in section 1.01.013.
(d) 
Prosecution or conviction under this provision shall never be a bar to any other remedy or relief for violation of this article.
(1996 Code, sec. 86-51)