A. Water Mains:
1. Water main size shall be a minimum of six inches (6") in diameter. Water main size up to eight inches (8") may be utilized as a standard along with a minimum distribution size of six inches (6"). Water main shall be ductile iron pipe and shall meet all the requirements of the City Engineer's Association of Minnesota Standard Utility Specification for Water Main and Service Line Installation and American Water Works Association standard. (Prior Code § 21-8-4; amd. 2018 Code)
2. Mains shall be valved at intervals not to exceed eight hundred feet (800'). Wedge gate valves shall be installed as main valves. Valves shall also be installed at street intersections and branches in the distribution system or in locations as determined by the City Engineer.
3. "Dead end" mains shall be looped if exceeding the allowed length of a cul-de-sac. The distribution system may require installing a larger main to benefit the entire water service in the City. The City Engineer shall determine the location and size of a main larger than six inches (6") or eight inches (8") in residential areas. In commercial/industrial areas, a water main up to twelve inches (12") may be required to meet normal distribution required in the development. The cost of normal distribution size and appurtenances shall be the responsibility of the developer. Size of pipe over and above the normal shall be installed and financed in accordance with City policy.
B. Fire Hydrants:
1. Installation shall be pursuant to plans approved by the City Engineer and local firefighting authority and shall be located in accordance with Insurance Service Office (ISO) standards.
2. Hydrants shall be placed at the end of all "dead ends" and cul-de-sacs and at intersections. All hydrants shall have wedge gate valves and shall be easily accessible to firefighting personnel and equipment. The single hydrant style shall be throughout the distribution system and that type is shown on the City standard plates.
C. Sanitary Sewers:
1. Sanitary sewers shall be a minimum of eight inch (8") pipe and shall be of a material approved for use in the City by the City Engineer. Sanitary sewer grades and installation shall conform to the Recommended Standards for Sewage Works, latest edition, by the Great Lakes - Upper Mississippi River Board of State Sanitary Engineers and the City Engineer's Association of Minnesota Standard Utilities Specification for Sanitary Sewer. Main size will be determined by the sewage flow and grade in accordance with the City Sanitary Sewer Comprehensive Plan.
2. Size of pipe shall be determined by lateral service and/or trunk service. Trunk service shall be the responsibility of the property served, and the City Council shall establish cost distribution policy. Lateral service shall be the responsibility of the property serviced, and cost shall be borne by the serviced property.
3. Sanitary sewer service shall be a minimum of four inches (4") and shall be installed in accordance with the City's standard detail templates.
D. House Services: Each house service shall be run from the main to the property line, where a cap or plug shall be placed until the service is extended to the structure. A one inch (1") type K copper water service, or approved equal; corporation cock, curb box and stop; and four inch (4") PVC plastic pipe, or approved equal, sewer service shall be the minimum requirements.
E. As Built Drawings: Reproducible as built drawings showing all utilities and improvements shall be furnished to the City by the applicant of all required improvements in developments where the applicant has been responsible for improvements. Such as built drawings shall be certified to be true and accurate by the registered engineer responsible for the installation of the improvements. (Prior Code § 21-8-4)