NR 811.83(1)(1) Emergency power shall be provided if 50 or fewer living units are being served and the primary pressure zone cannot maintain positive pressures of 3 psi or greater at street elevation in all areas served by the booster pumps, and sufficient elevated storage is not provided.

NR 811.83(2)(2) Emergency power shall be provided if more than 50 living units are being served and the primary pressure zone cannot maintain pressures of 20 psi or greater at street elevation in all areas served by the booster pumps, and sufficient elevated storage is not provided.

NR 811.83(3)(3) Emergency power shall consist of a dedicated on-site engine-generator set with an automatic transfer switch capable of powering at minimum the domestic service pumps and station building demands.

NR 811.84NR 811.84 Station requirements.

NR 811.84(1)(1) The on-off operation of the pumps and the system pressure at the booster station shall be monitored at one of the main waterworks pumping stations, other waterworks facility, or wherever the master control panel is located. At stations serving 50 or fewer living units, monitoring may be provided by a light or an audible alarm placed in a conspicuous location outside the station to indicate pump failure. A continuous recording pressure device may be provided.

NR 811.84(3)(3) A flow meter shall be provided, if practical, in the booster pump discharge line. Booster pump motors shall be provided with hour meters if a flow meter will not be installed.

NR 811.84(9)(9) Underground stations shall be equipped with heating, ventilation, and dehumidification equipment. Sump and sump pump equipment shall be provided unless a discharge to the ground surface can be provided. Access manways shall terminate a minimum of 24 inches above grade with an overlapping, gasketed, watertight, locking cover. Sump pump discharge and vent pipes shall be metal and terminate a minimum of 24 inches above grade in a downward facing U-bend with a 24-mesh corrosion resistant screen. Chemical addition equipment may not be installed in underground stations.

NR 811.85NR 811.85 General. Provisions shall be made for proper disposal of all wastes from waterworks facilities including wastes from sanitary facilities, laboratories, and treatment plants. All waterworks facilities shall meet the general requirements of this section and the relevant sections of this subchapter, which contain standards to be utilized in meeting the requirements of ch. 283, Stats. The discharge of specific types of wastes shall be limited to those methods listed under this subchapter. If other treatment or disposal methods are proposed or the treatment results are uncertain, the department may require laboratory testing, pilot testing under s. NR 811.44, or full-scale testing to establish design parameters. In addition, water system waste disposal shall meet all of the following requirements:

NR 811.85(1)(1) Discharge requirements. Waterworks wastewater sludge, and solid wastes generated in the drinking water treatment process that is not recycled within the waterworks or disposed of in a licensed landfill shall meet all of the following provisions:

NR 811.85(1)(a)1.1. The indirect discharge of any pollutant from a waterworks facility into a publicly owned treatment works shall conform to all the applicable requirements under ch. NR 211.

NR 811.85(1)(a)2.2. An equalization tank or lagoon shall be provided if it is necessary to prevent overloading the sewers, interference, or pass through at the publicly or privately owned treatment works.

NR 811.85(1)(b)1.1. The discharge of any pollutant from a water treatment plant to a water of the state shall be in accordance with the limitations and terms contained within a WPDES permit issued for the discharge. The discharge of solely sanitary wastes to a POWTS, as allowed under s. NR 811.851, is exempt from this requirement.

NR 811.85 NoteNote: The department’s wastewater program in the bureau of water quality is responsible for the issuance of WPDES permits for discharges from waterworks to a water of the state. Waterworks owners should contact the department’s district wastewater staff for WPDES permit application and administration.

NR 811.85(1)(b)2.2. The radionuclide content of the wastewater, including waste sludge, shall comply with s. NR 811.856. Any proposed land treatment system shall comply with the applicable requirements under ss. NR 204.07 and 214.18.

NR 811.85(1)(b)3.3. Land application of wastewater and sludge shall comply with the applicable requirements under s. NR 204.07 and ch. NR 214. Under s. NR 214.02 (3) (k), uncontaminated lime sludges applied in accordance with s. NR 518.04 (3) are exempt from this requirement.

NR 811.85 NoteNote: Uncontaminated lime sludge excludes any sludge containing radium-226, radium-228, or uranium and other contaminants that are regulated under a WPDES permit under ch. 283, Stats.

NR 811.85(1)(b)4.4. The discharge of wastewater to a water of the state shall be separated from a well in accordance with the applicable separation distances under s. NR 811.12 (5) (d) 6. and 8. The department may apply additional limitations to the location of a discharge on a case-by-case basis if necessary for adequate protection of a groundwater or surface water source.