Section NR 811.69 - Materials Water main materials shall meet the following requirements:
(1) ACCEPTABLE MATERIALS. All pipe used for water main installations shall be cast iron, ductile iron, steel, reinforced concrete, polyvinyl chloride, high density polyethylene, copper, or materials specially approved by the department for restricted or experimental use. If a restricted or experimental use approval is issued, the department may require special precautions until a satisfactory use record has been established. For polyvinyl chloride pipe, the pipe shall have a maximum dimension ratio of 18 and only joints with elastomeric gaskets or butt fusion welds shall be used.(2) STANDARDS. Pipes, joints, fittings, valves, and fire hydrants shall have been manufactured in conformity with the latest standards issued by the AWWA and may not be used unless approved by the department. All pipe shall be minimum AWWA pressure class 150 and shall be designed for a minimum 100 psi working pressure except as approved by the department for special low pressure applications. Specifications for water main pipe and joints for water mains having a diameter less than those contained in AWWA standards shall meet the requirements of s. SPS 382.40. Note: A copy of the AWWA standards is available for inspection at the central office of the department of natural resources and may be obtained for personal use from the American Water Works Association, 6666 West Quincy Avenue, Denver, Colorado 80235.
(3) LEAD FREE. Any pipe, pipe fittings, solder, or flux used in the installation or repair of any public water system shall be lead free. "Lead free" means, with respect to solders and flux, containing not more than 0.2 percent lead and, with respect to pipes and pipe fittings, containing not more than 0.25 percent lead. Repairs to lead joints shall be made using alternative methods, if possible. For ductile iron pipe, the use of lead tipped gaskets is prohibited.(4) PROTECTION AGAINST CORROSION. Special attention shall be given to selecting pipe materials which will protect against internal and external corrosion. If soils, groundwater, or both, are aggressive, ductile iron water mains shall be provided with polyethylene encasement installed in conformity with the latest AWWA standards.(5) PROTECTION AGAINST CONTAMINATION FROM ORGANIC COMPOUNDS IN SOIL AND GROUNDWATER. If possible, construction of water mains through or near areas of soil or groundwater contamination shall be avoided. Special attention shall be given to selecting pipe and gasket materials for construction in contaminated soil or groundwater which will protect against external corrosion and penetration of the pipe and gaskets by the contaminants. Water mains designed to pass through or near areas of contaminated soil or groundwater shall meet the following requirements: (a) The department shall be contacted to obtain approval of the water main design requirements prior to the submittal to the department of the plans and specifications.(b) Installations shall meet the following design criteria:1. Minimum class 52 ductile iron water main piping with polyethylene encasement shall be used.2. Hydrant drain ports shall be permanently plugged or hydrant barrels installed without drain ports.3. Nitrile gaskets shall normally be used, except as provided in subd. 4.4. The use of fluorocarbon gaskets shall be required if: a. Nitrile gaskets will not be compatible with the contaminants present.b. The soil or groundwater contamination exceeds primary drinking water standards.c. The contamination concentrations and locations are uncertain.5. Pipe bedding shall meet the requirements of s. NR 811.73 (2) (a).(6) REHABILITATION. All materials used for the interior rehabilitation of water mains shall meet ANSI/NSF standards and may not be used until specifically approved by the department.Wis. Admin. Code Department of Natural Resources NR 811.69
CR 09-073: cr. Register November 2010 No. 659, eff. 12-1-10; correction in (2) made under s. 13.92(4) (b) 7, Stats., Register December 2011 No. 672.Amended by, CR 22-074: am. (1), (3) Register January 2024 No. 817, eff. 2/1/2024