NR 216.07(3)(i)1.1. Field screening points shall, where possible, be located downstream of any sources of suspected illegal or illicit activity.

NR 216.07(3)(i)2.2. Field screening points shall be located where practicable at the farthest manhole or other accessible location downstream in the system. Safety of personnel and accessibility of the location shall be considered in making this determination.

NR 216.07(3)(i)3.3. Consideration shall be given to hydrological conditions, total drainage area of the site, population density of the site, traffic density, age of the structures or buildings in the area, history of the area and land use types.

NR 216.07(4)(4) Construction site pollutant control. Except for construction sites that are exempted under s. NR 216.42 (2) to (11), a program to implement and maintain erosion and sediment control best management practices to reduce pollutants in storm water runoff from construction sites with one acre or more of land disturbance, and sites of less than one acre if they are part of a larger common plan of development or sale. This program shall encompass any adjacent developing areas that are planned to have a minimum density of 500 people per square mile, the urbanized area and developing areas whose runoff will connect to the MS4. The program shall include all of the following:

NR 216.07(4)(a)(a) The implementation and enforcement of a legal authority to comply with ss. NR 151.11 and 151.23, as well as sanctions to ensure compliance, to the extent authorized by law.

NR 216.07 NoteNote: Section NR 151.11 applies to construction sites that are not transportation facilities and s. NR 151.23 applies to transportation facility construction sites.

NR 216.07(4)(d)(d) Procedures for identifying priorities for inspecting sites and enforcing control measures which consider the nature of the construction activity, topography, the characteristics of soil and receiving water quality.

NR 216.07(4)(e)(e) Requirements for construction site operators to manage waste such as discarded building materials, concrete truck washout, chemicals, litter, and sanitary waste at the construction site so as to minimize adverse impacts to water quality.

NR 216.07(5)(5) Post-construction site storm water management. A program to develop, implement and enforce controls on discharges from new development and redevelopment projects that disturb one acre or more of land, including projects less than one acre that are part of a larger common plan of development or sale, that discharge into the MS4. This program shall encompass any adjacent developing areas that are planned to have a minimum density of 500 people per square mile, the urbanized area and developing areas whose runoff will connect to the MS4. The program shall include all of the following:

NR 216.07(5)(a)(a) The implementation and enforcement of a legal authority to comply with ss. NR 151.12 to 151.128 and 151.24 to 151.249.

NR 216.07 NoteNote: Section NR 151.12 applies to construction sites that are not transportation facilities and s. NR 151.24 applies to transportation facility construction sites.

NR 216.07(6)(6) Pollution prevention.

NR 216.07(6)(a)(a) A storm water management program and an operation and maintenance program that includes a training component and has the ultimate goal of preventing or reducing pollutant runoff and meeting the requirements of sub. (10). The program shall include all of the following activities:

NR 216.07(6)(a)2.2. Roadway maintenance including street sweeping and de-icer management. Permits may include requirements for de-icer usage tracking, equipment calibration, training, and de-icer reduction strategies.

NR 216.07(6)(a)4.4. Management of municipal garages, storage areas, and other municipal sources of pollution. Site-specific storm water pollution prevention plans shall be developed for sites with bulk storage piles, outdoor vehicle maintenance, fueling, outdoor material storage, uncovered dumpsters, composting, and other areas with discharges deemed by the department to be significant contributors of pollutants to waters of the state. Permits shall contain requirements for storm water pollution prevention plans that include the elements in s. NR 216.27 that are relevant to municipal sources of pollution.

NR 216.07(6)(a)5.5. Management of the application of lawn and garden fertilizers on municipally controlled properties in accordance with s. NR 151.13 (1) (b) 3.

NR 216.07(6)(a)6.6. Inspection, surveillance and monitoring procedures necessary to determine compliance and noncompliance with permit conditions.

NR 216.07(6)(b)(b) An assessment of the actions taken under this subsection shall be conducted. The assessment shall include a pollutant-loading analysis using a model such as SLAMM, P8 or equivalent methodology that is approved by the department. At a minimum, a pollutant-loading analysis shall be conducted for total suspended solids and phosphorus. The department may require other parameters on a case-by-case basis.

NR 216.07 NoteNote: The department believes that computer modeling is the most efficient and cost effective method for calculating pollutant loads. Pollutant loading models such as SLAMM, P8 or equivalent methodology may be used to evaluate the efficiency of the design in reducing total suspended solids. Information on how to access SLAMM and P8 is available at https://dnr.wisconsin.gov/topic/Stormwater/standards/slamm.html or contact the storm water program in the bureau of watershed management at (608) 267-7694.