All subdivisions developed subsequent to the ordinance from which this chapter is derived shall be provided with an approved water system. In the absence of specific standards contained in this ordinance, all water supply, distribution, pumping, and storage improvements shall be designed in accordance with the most current standards of the American Water Works Association and the most current edition of Rules and Regulations for Public Water Systems of the state department of health resources and state natural resources conservation commission regulations. Materials and construction shall meet the requirements of the city standard details and specifications for water and sanitary sewer construction.
[Ord. No. 819-97, § 11(I), 6-10-1997]
(a) 
All water mains in residential areas shall be a minimum of six inches in size and looped. Water mains in industrial and commercial areas shall be a minimum eight inches in size.
(b) 
The city may participate in the cost of any oversize lines required to serve land areas and improvements beyond the subdivision. The city's participation will be the difference in the actual construction cost of the oversized line and the estimated construction cost, as determined by the city's engineer, of the line properly sized to serve only the land area of the development.
(c) 
The cost of mains larger than six inches must be borne by the subdivider or developer if such larger main is required to adequately serve the subdivision.
(d) 
Standard fire hydrants shall be installed as a part of the water distribution system. Fire hydrants in a mercantile and industrial area shall be on street intersections and so located that there will be a fire hydrant every 300 feet. Fire hydrants in a residential area shall be located on all street intersections and not over 500 feet apart. Fire hydrants shall be considered as the actual fire hydrant, six-inch valve, tee, and the necessary piping.
(e) 
Valves of approved design shall be installed at the intersections of all water mains so as to provide for proper maintenance and operation of the system and to provide a means of shutting off the supply to portions of the systems for repairs. Sufficient valves shall be installed to cause no more than 15 lots to be out of service in the event of a water main break.
(f) 
The depth of cover shall be a minimum of 36 inches below finished grade.
(g) 
Pipeline markers will be used to locate road crossings and cross country lines in rural areas.
(h) 
Valve markers shall be provided in rural areas.
(i) 
Corporation stops and meter boxes shall be provided at all services.
(j) 
Adequate air relief, draining, and flushing valves must be provided for flushing, disinfection, daily operation requirements and repairs.
(k) 
All water mains installed within a subdivision must extend to the borders of the subdivision as required for future extensions of the water distribution system regardless of whether or not such extensions are required for service within the subdivision. At the end of such water main, a fire hydrant assembly shall be installed plus an additional valve for any future extensions.
[Ord. No. 819-97, § 11(I), 6-10-1997]
All subdivisions developed subsequent to this article shall be provided with an approved sewerage disposal system conforming to the current criteria adopted by the city and the requirements of state natural resource conservation commission regulations. Materials and construction shall meet the requirements of the city standard details and specifications for water and sanitary sewer construction.
[Ord. No. 819-97, § 11(M), 6-10-1997]
(a) 
No sanitary sewer main shall be less than six inches in nominal diameter. Sanitary sewer mains of six inches in diameter can only be installed when all four of the following criteria are met:
(1) 
The main is less than 250 linear feet in length;
(2) 
The main is installed straight (not on a curve);
(3) 
There is no possible way the main can be extended onto in the future; and
(4) 
Manholes are installed on both ends of the six-inch main.
(b) 
All sanitary sewers shall be designed with consideration for serving the full drainage area subject to collection by the sewer in question except as modified with the concurrence of the city's engineer because of the projected rate of development or the financial feasibility of the proposed extension.
(c) 
Manholes shall be located at all intersections of other sanitary sewers and at intermediate spacings along the line. Generally the maximum spacing should not exceed 500 feet. Manholes should be located at all changes in grade and at the ends of all sanitary sewers that will be extended or not extended; i.e., cleanouts will not be allowed.
(d) 
Sanitary sewers should be designed with straight alignment whenever possible. When horizontal curvatures must be used, the smallest radius should be determined by the pipe manufacturer's data, but in no case less than a 100-foot radius shall be used.
(e) 
All sanitary sewers shall be designed with hydraulic slopes sufficient to give mean velocities, when flowing full or half full, of not less than two feet per second on Kutter's or Manning's formulas using an "n" value of 0.013.
(f) 
No connection shall be made to any sanitary sewerage system within the city which will permit the entrance of surface water and waste of other than domestic sewage characteristics.
(g) 
All materials and workmanship incorporated in the sanitary sewage system extensions shall be in accordance with the currently adopted city standard details and specifications for water and sanitary sewer construction.
(h) 
All lateral and sanitary sewer mains installed within a subdivision must extend to the borders of the subdivision as required for future extensions of the collecting system regardless of whether or not such extensions are required for service within the subdivision.
(i) 
All service laterals below areas proposed to be paved shall be installed and properly backfilled prior to compaction of the subgrade and placement of the paving.
(j) 
Any service lateral used for the discharge of industrial waste into the city's sanitary sewers shall have a control manhole constructed and maintained by the discharger of the industrial waste. The control manhole shall be constructed downstream from any storage tanks or pretreatment works and shall be used by the city for sampling and monitoring the industrial waste.
[Ord. No. 819-97, § 11(M), 6-10-1997]
(a) 
The subdivider shall be required to enter into an agreement with the city which will govern his subdivision if there are off-site utility extensions, off-site street extensions and/or modifications, perimeter street construction and/or modifications, perimeter street ordinance responsibilities, sidewalk ordinance responsibilities, pro rata payments, city participation and cost, escrow deposits or other future considerations, waivers granted to the ordinance or other nonstandard development regulation. This agreement shall be based upon the requirements of this section and shall provide the city with specific authority to complete the improvements required in the agreement in the event of failure by the developer and to recover the full legal cost of such measures. The city may subordinate the facilities agreement to the prime lender if provided for in such agreement.
(b) 
The facilities agreement shall be a legally binding agreement between the city and the developer specifying the individual and joint responsibilities of both the city and the developer. Unusual circumstances relating to the subdivision shall be considered in the facilities agreement such that the purpose of this chapter is best served for each particular subdivision. Such facilities agreement may stipulate pro rata payments, city participation in unusual facilities, escrow deposits or other payments for future facilities, waivers granted to this ordinance and other particular aspects of the development. The developer shall include in such agreement a hold harmless indemnity clause agreeing to hold the city harmless against any claim arising out of this developer's subdivision or any actions taken therein.
(c) 
The developer shall have a continuing responsibility under this facilities agreement after the filing of the final plat and until all facilities and improvements required under this facilities agreement have been completed. When the construction of required improvements has proceeded to the point that certain parts of the subdivision are adequately served, the city manager may release specified portions of the subdivision prior to the completion of all improvements. This shall not be done if the release of such improvements would jeopardize or hinder the continued construction of required improvements, and the facilities agreement shall remain in force for all portions of the subdivision for which a release has not been executed.
(d) 
The facilities agreement shall be recorded in the county courthouse at the same time the final plat is recorded.
[Ord. No. 819-97, § 12, 6-10-1997]