NR 110.15(5)(f)(f) Disinfection. Disinfection shall be provided in accordance with WPDES permit requirements.

NR 110.15(5)(g)(g) Controlled diversion structures and equipment. Structures and equipment to enable controlled diversions shall be located and arranged to allow for proper maintenance of the sewage treatment facility. In all cases, it must be possible for each treatment unit to be independently removed from service.

NR 110.15 NoteNote: Section NR 205.07 (1) (u) 2. contains specific provisions associated with the use of controlled diversion structures and equipment and requires compliance with all permit effluent limitations during times of controlled diversion.

NR 110.15(5)(h)(h) Sewage treatment facility overflow structures. Sewage treatment facility overflow structures may be provided at an owner’s discretion as a measure to protect sewage treatment facility integrity and treatment efficiency during severe operating conditions. Sewage treatment facility overflow structures may not be installed at the headworks of aerated or stabilization pond treatment systems. Sewage treatment facility overflow structures shall be designed in accordance with all the following requirements:

NR 110.15(5)(h)1.1. The overflow may be activated by either manual or automatic means. If automatically activated, a monitoring system shall be provided to detect the initiation time of the overflow and to provide an alarm signal to the sewage treatment facility operator or other responsible authority.

NR 110.15(5)(h)2.2. The structure shall be designed to discharge only those wastewater flows above the peak flow rate that the sewage treatment facility can safely process without threatening loss of life, causing severe property damage, or compromising treatment processes, including the washout of biological media in the biological treatment process.

NR 110.15(5)(h)3.3. Equipment shall be provided to measure the flow and sample the wastewater that is discharged from the structure.

NR 110.15 NoteNote: A department approval of a sewage treatment facility overflow structure does not eliminate or alleviate the requirement that prohibits sewage treatment facility overflows in s. NR 210.21.

NR 110.15(5)(i)(i) Painting.

NR 110.15(5)(i)1.1. The use of paints containing lead is prohibited. In order to facilitate the identification of piping, pipes shall be painted as follows:

NR 110.15(5)(i)1.g.g. Nonpotable water line—blue with 15 centimeter (6 inch) red bands spaced 76 centimeters (30 inches) apart.

NR 110.15(5)(i)2.2. In addition to the color code, each pipe shall be adequately labeled with a minimum of 2 labels in each room, crawl space or compartment.

NR 110.15(5)(i)3.3. Existing treatment facilities which do not comply with the provisions of this subsection shall bring the facility into compliance at the time of any major upgrading or expansion of the facility.

NR 110.15(5)(j)(j) Valve identification. All valves shall be identified in the plans and specifications and labeled during construction.

NR 110.15(5)(k)(k) Operational considerations. All necessary tools and accessories for the facility operator’s use shall be provided. Storage space and a work area shall also be provided. All equipment shall be located as to provide sufficient clearance for proper and convenient maintenance. All tanks, wet wells, channels and pipe systems shall be equipped with drains, valves, or sumps to facilitate draining for maintenance and repair.

NR 110.15(5)(L)(L) Laboratory space and equipment. A treatment facility owner shall either include a laboratory for making the necessary analytical determinations and operating control tests, or contract with a neighboring facility or independent laboratory to have the analytical and operating control tests done.

NR 110.15(5)(m)(m) Floor slope. Floor surfaces shall be sloped adequately to a point of drainage.

NR 110.15(5)(n)(n) Erosion control during construction. Effective site erosion control shall be provided during construction. Project specifications shall detail erosion control methods. Manner of spoil material disposal shall also be detailed.

NR 110.15(5)(o)(o) Construction materials. Materials shall be selected that are compatible with the wastewater characteristics. Dissimilar metals should be avoided to minimize galvanic action.

NR 110.15(5)(p)(p) Sanitary facilities. Toilet, shower, lavatory, and locker facilities should be provided in sufficient numbers and convenient locations to serve the expected facility personnel. Toilet, shower, and lavatory facilities shall be provided in the following instances: