NR 151.13(1)(b)3. 3. The application of turf and garden fertilizers on five acres or more of municipally controlled properties shall be done in accordance with a site specific nutrient application schedule based on appropriate soil tests. The nutrient application schedule shall be designed to maintain the optimal health of the turf or garden vegetation.

NR 151.13 Note Note: In accordance with subch. V, the department has developed a technical standard to help meet the nutrient management performance standard. The technical standard is available from the department at dnr.wi.gov.

NR 151.13(1)(b)4. 4. Detection and elimination of illicit discharges to storm sewers.

NR 151.13(2) (2) Permitted municipalities.

NR 151.13(2)(a) (a) Applicability. This subsection applies to municipalities that are subject to the municipal storm water permit requirements of subch. I of ch. NR 216.

NR 151.13(2)(b) (b) Program. A municipality shall develop and implement a storm water management program, including the adoption and administration of any necessary ordinance, to meet the following requirements:

NR 151.13(2)(b)1. 1. ‘Stage 1 requirements.’ The municipalities identified under par. (a) shall implement all of the following within 2 years of receiving permit coverage under subch. I of ch. NR 216:

NR 151.13(2)(b)1.a. a. All of the requirements contained in sub. (1) (b).

NR 151.13(2)(b)1.b. b. A 20 percent reduction in total suspended solids, or to the maximum extent practicable, as compared to no controls, for runoff from existing development that enters waters of the state.

NR 151.13(2)(b)5. 5. ‘Model requirements.’ Evidence of meeting the performance standard of subd. 2. shall be based on the use of a model or an equivalent methodology approved by the department. Acceptable models and model versions include SLAMM version 9.2 and P8 version 3.4 or subsequent versions of those models. Earlier versions of SLAMM are acceptable when the municipality is not taking any credit for street cleaning.

NR 151.13 Note Note: Section NR 151.13 (2) (b) 2. was repealed by CR 19-050 Register January 2020 No 769, eff. 2-1-20.

NR 151.13 Note Note: Information on how to access SLAMM and P8 and the relevant parameter files are available by contacting the department’s storm water management program at dnr.wi.gov.

NR 151.13(2)(c) (c) Location. To comply with the standards required under this subsection, BMPs may be located on-site or off-site as part of a regional storm water device, practice or system, but shall be installed in accordance with s. NR 151.003.

NR 151.13(2)(d) (d) Exemption. The requirements of par. (b) 1. and 2. do not apply to areas subject to a permit issued under subch. II of ch. NR 216.

NR 151.13 Note Note: Section NR 151.13 (2) (b) 2. was repealed by CR 19-050 Register January 2020 No 769, eff. 2-1-20.

NR 151.13(2)(e) (e) Calculation of reduction. The department shall recognize total suspended solids reduction not otherwise accounted for in computer models for the implementation of programs, ordinances and other institutional controls that result in scientifically supported reductions of total suspended solids and are developed as a technical standard under s. NR 151.31.

NR 151.13 History History: CR 00-027: cr. Register September 2002 No. 561, eff. 10-1-02; CR 09-112: r. and recr. Register December 2010 No. 660, eff. 1-1-11; CR 19-050: r. (2) (b) 2. to 4. Register January 2020 No. 769, eff. 2-1-20.

NR 151.14 NR 151.14 Turf and garden nutrient management performance standard.

NR 151.14(1) (1) Applicability. This section applies when all of the following conditions are met:

NR 151.14(1)(a) (a) The property is not subject to s. NR 151.13 (1) (b) 3.

NR 151.14(1)(b) (b) Nutrients are applied to over 5 acres of turf or garden.

NR 151.14(1)(c) (c) The property discharges runoff to waters of the state.

NR 151.14(1)(d) (d) The property is not an agricultural facility or practice.

NR 151.14(1)(e) (e) The property does not conduct silviculture activity.

NR 151.14(2) (2) Responsible party. The landowner is the responsible party and shall comply with this section.

NR 151.14(3) (3) Requirements. The application of turf and garden fertilizers on these properties shall be done in accordance with site-specific nutrient application schedules based on appropriate soil tests. The nutrient application schedule shall be designed to maintain the optimal health of the turf or garden vegetation.

NR 151.14 Note Note: In accordance with subch. V, the department has developed a technical standard to help meet the nutrient management performance standard. The technical standard is available from the department at dnr.wi.gov.

NR 151.14 History History: CR 00-027: cr. Register September 2002 No. 561, eff. 10-1-02; CR 09-112: r. and recr. Register December 2010 No. 660, eff. 1-1-11.

NR 151.15 NR 151.15 Implementation and enforcement.