Register January 2012 No. 673
Chapter NR 110
SEWERAGE SYSTEMS
NR 110.04 Alternative requirements.
NR 110.05 Sewer extensions.
NR 110.06 Construction plans for reviewable projects.
NR 110.07 Specifications for reviewable projects.
NR 110.08 Facilities plans for reviewable projects.
NR 110.09 Sewage treatment facilities projects.
NR 110.10 Sewage collection system projects.
NR 110.11 Sewage lift stations.
NR 110.12 Owner approval requirement.
NR 110.13 Sewer design criteria.
NR 110.14 Sewage lift stations design criteria.
NR 110.15 General requirements for sewage treatment facilities.
NR 110.16 Screening devices.
NR 110.17 Grit removal facilities.
NR 110.18 Settling tanks.
NR 110.19 Trickling filters.
NR 110.20 Rotating biological contactors.
NR 110.21 Activated sludge.
NR 110.22 Physical-chemical treatment.
NR 110.25 General conditions required for all land disposal systems.
NR 110.255 Conditions required for specific types of land disposal systems.
NR 110.26 Sludge handling, storage and disposal.
NR 110.27 Requirements for certified or registered laboratory.
Ch. NR 110 History
History: Chapter NR 110 as it existed on November 30, 1974 was repealed and a new chapter NR 110 was created effective December 1, 1974.
NR 110.01
NR 110.01
Applicability. This chapter is applicable to all new or modified sewerage systems, excluding only industrial waste treatment facilities. This chapter also applies to sewerage systems employing land disposal of sewage effluent, except those systems defined as plumbing within the purview of s.
145.01 (10) (a) 2., Stats.
NR 110.01 Note
Note: The authority to enact these rules is contained in ch.
281, Stats. Pursuant to s.
299.97, Stats., any person who violates this chapter shall forfeit not less than $10 nor more than $5,000 for each violation. Each day of continued violation is a separate offense.
NR 110.01 History
History: Cr.
Register, November, 1974, No. 227, eff. 12-1-74; correction was made under s. 13.93 (2m) (b) 7., Stats.,
Register, May, 2001, No. 545; correction made under s. 13.92 (4) (b) 7., Stats.,
Register July 2010 No. 655, eff. 8-1-10.
NR 110.03
NR 110.03
Definitions. For purposes of this chapter:
NR 110.03(1)
(1) "Approved areawide waste treatment management plan" means a plan or element thereof developed pursuant to Section 208 of the Federal Water Pollution Control Act Amendments of 1972 as amended by the Clean Water Act Amendments of 1977 (
33 USC 1251 et seq.) and approved by the state of Wisconsin.
NR 110.03(2)
(2) "Approval" means the written approval of the department for any project requiring approval pursuant to s.
281.41, Stats., and
s. NR 108.03.
NR 110.03(4)
(4) "ASTM" means standards developed by ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959.
NR 110.03 Note
Note: Copies of ASTM standards referenced in this chapter are available for inspection at the office of the department of natural resources, the secretary of state's office, and the legislative reference bureau, and may be obtained for personal use from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959.
NR 110.03(6)
(6) "AWWA" means the American Water Works Association, 6666 West Quincy Avenue, Denver, CO 80235.
NR 110.03 Note
Note: Copies of AWWA standards referenced in this chapter are available for inspection at the offices of the department of natural resources, the secretary of state's offices, and the legislative reference bureau, and may be obtained for personal use from the American Water Works Association, 6666 West Quincy Avenue, Denver, CO 80235.
NR 110.03(6m)
(6m) "Bedrock" means the rocks that underlie soil material or where weathered in-place consolidated material larger than 2 millimeters in size is greater than 50% by volume.
NR 110.03(7)
(7) "Bypass or overflow" means the discharge of wastewater directly or indirectly to the waters of the state during dry or wet weather flow conditions caused by intentional or inadvertent diversion of all or a portion of the wastewater flow from a sewerage system.
NR 110.03(8)
(8) "Bypass or overflow structure" means the physical structures, hydraulic control mechanisms, and piping which allow a bypass or overflow to occur.
NR 110.03(9)
(9) "Controlled diversion" means the re-routing of untreated or partially treated wastewater around the entire sewage treatment facility, or treatment processes therein, which is recombined with the treated effluent prior to the effluent sampling location.
NR 110.03(10)
(10) "Controlled diversion structure" means the physical structures, hydraulic control mechanisms, and piping which allow a controlled diversion to occur.
NR 110.03(11)
(11) "Cost-effective analysis" means a systematic comparison of alternative means of meeting state water quality standards, effluent limitations or other treatment standards in order to identify the alternative which will minimize the total resources costs over the planning period. These resources costs include monetary costs and environmental as well as other non-monetary costs.
NR 110.03(12)
(12) "Department" means the department of natural resources.
NR 110.03(12g)
(12g) "Design flow" means the anticipated wastewater discharge rate to a sewerage system component, which is used to design the sewerage system component to provide compliance with WPDES permit limits and other performance objectives, during the most critical operating conditions anticipated within the design planning period. Specific design flow terms used in this chapter, include the following:
NR 110.03(12g)(a)
(a) "Average daily base flow" means the average of the daily flow volumes anticipated to occur for a continuous 12-month period, less infiltration and inflow, and expressed as a daily average.
NR 110.03(12g)(b)
(b) "Average design flow" means the average of the daily flow volumes anticipated to occur for a continuous 12-month period, expressed as a daily average.
NR 110.03(12g)(c)
(c) "Maximum month design flow" means the largest volume of flow anticipated to occur during a continuous 30-day period, expressed as a daily average.
NR 110.03(12g)(d)
(d) "Maximum week design flow" means the largest volume of flow anticipated to occur during a continuous 7-day period, expressed as a daily average.
NR 110.03(12g)(e)
(e) "Maximum day design flow" means the largest volume of flow anticipated to occur during a one-day period, expressed as a daily average.
NR 110.03(12g)(f)
(f) "Maximum hour design flow" means the largest volume of flow anticipated to occur during a one-hour period, expressed as a daily or hourly average.
NR 110.03(12g)(g)
(g) "Peak instantaneous design flow" means the maximum anticipated instantaneous flow.
NR 110.03(12g)(h)
(h) "Peak design flow" and "maximum design flow" mean the largest volume of flow anticipated to occur on an infrequent basis, expressed as a daily average. The "peak design flow" or "maximum design flow" may be equal to any one of the design flows defined in
pars. (c) to
(g).
NR 110.03(12m)
(12m) "Design management zone" or "DMZ" means a 3-dimensional area, bounded by a set horizontal distance from the application or containment area, as specified in Table 4,
ch. NR 140, and by variable vertical distance which extends from the land surface downward through all saturated formations.
