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Upon the passage and publication of a resolution of the city council providing for the use and withdrawal of water by any person, any or all of the following purposes, as specified by the resolution, may be regulated or prohibited as follows:
(a) Water vegetation. The sprinkling, watering, or irrigating of lawns, turf, shrubbery, trees, grass, ground covers, plants, vines, gardens, vegetables, flowers, or any other vegetation by any method may be regulated as prohibited, except pursuant to an exception granted under § 52.009;
(b) Washing mobile equipment. The washing of automobiles, trucks, trailers, trailer houses, railroad cars, or any other type of mobile equipment except where required by health and sanitary requirements and except pursuant to an exception granted under § 52.009;
(c) Swimming pools. The filling of any swimming pool except pursuant to an exception granted under § 52.009;
(d) Cleaning equipment and machinery. The washing and cleaning of any business or industrial equipment and machinery except where required by health and sanitation requirements and except pursuant to an exception granted under § 52.009; and
(e) Air conditioners. The use of air-conditioning equipment except pursuant to an exception granted under § 52.009.
(1992 Code, § 41-202) (Ord. 20-77, passed 3-21-1977; Ord. 75-88, passed 8-8-1988; Ord. 23-13, passed 4-16-2013)
The following uses of water shall be regulated or prohibited as follows:
Watering yards. The day and time for sprinkling, watering, or irrigating of yards and grass by any method shall be regulated or prohibited as follows:
(a) Municipal water users are prohibited from watering lawns during the hours of 12 noon to 5 p.m. except pursuant to an exception granted under § 52.009.
(b) Municipal water users having even- numbered addresses may water lawns on even- numbered calendar dates. Municipal water users having odd-numbered addresses may water lawns on odd-numbered calendar dates. This annual lawn watering schedule is in effect when the water flow rate in the Big Sioux River is at 50 cubic feet per second (cfs) or more as measured at the United States Geological Survey (USGS) Cliff Avenue gauging station except pursuant to an exception granted under § 52.009.
(c) (1) Municipal water users may water lawns one day of each week when the water flow rate in the Big Sioux River as measured at the USGS Cliff Avenue gauging station is at 49 cfs or less for a period of ten consecutive days and greater than 20 cfs and the daily demand for water exceeds 42 million gallons per day (mgd). Each municipal water user will have a designated lawn watering day as determined by the manager that will best protect the water supply except pursuant to an exception granted under § 52.009.
(2) To move from one day of each week back to odd/even lawn watering restrictions, the water flow rate in the Big Sioux River as measured at the USGS Cliff Avenue gauging station will have to reach 75 cfs or greater for a period of 20 consecutive days.
(d) (1) Municipal water users will be prohibited from watering lawns when the water flow rate in the Big Sioux River as measured at the USGS Cliff Avenue gauging station is at 20 cfs or less for five consecutive days and stays below 20 cfs and the daily demand for water exceeds 34 mgd except pursuant to an exception granted under § 52.009.
(2) To move from lawn watering prohibition, the water flow rate in the Big Sioux River as measured at the USGS Cliff Avenue gauging station will have to reach 40 cfs or greater for a period of 20 consecutive days.
(e) During periods of extended dry weather, severe drought conditions, or other man-made or natural disaster conditions, the mayor at the recommendation of the manager may enact additional restrictions necessary to protect the local water supply for a period of up to 30 days.
(f) Each stage of lawn watering restriction will stay in effect until such time it is deemed safe by the manager to remove and change the status of the restrictions.
(Ord. 23-13, passed 4-16-2013)
Upon the passage and publication of a resolution of the city providing therefor:
(a) All residential water users shall be restricted to the use of 50 gallons per person per day except pursuant to an exception granted under § 52.009; and
(b) All business and industries and parties to contracts with the city using city water shall be restricted to the use of a percentage of their prior usage of water as determined by resolution of the city.
(1) The provisions of this division (b) shall not apply to those businesses and industries declared by resolution of the city to be necessary for the public health, safety and welfare.
(2) Business and industries processing animal, vegetable and mineral matter for food purposes shall be regulated in the use of water as follows. The mayor, when so ordered by resolution of the city, shall hold a public hearing, after one week’s public notice, to determine, by resolution, the amount of water to be used, based on the amount needed during normal years in the particular food processing business.
(1992 Code, § 41-203) (Ord. 20-77, passed 3-21-1977; Ord. 43-05, passed 4-18-2005; Ord. 13-05, passed 2-14-2005)
No person shall waste water while watering in the city.
(1992 Code, § 41-203.1) (Ord. 43-05, passed 4-18-2005) Penalty, see § 10.999
All rain sensors shall automatically shut off the irrigation system after one-fourth inch of rainfall has occurred. All rain sensors shall be installed according to the manufacturer’s instructions in a location providing full exposure to rainfall to assure accurate operation. The sensors shall be maintained in good working condition. No person shall, with the intent of circumventing the purpose of this section, adjust either the rain sensor or irrigation system so that the sensor cannot override and turn off the irrigation system after one-fourth inch of rain has fallen.
(1992 Code, § 41-203.3) (Ord. 43-05, passed 4-18-2005)
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