APPENDIX A. SPECIAL REQUIREMENTS

A. General Requirements

1. All applicable requirements of Appendix A are in addition to any requirements already specified in this permit.

2. The Permittee shall document and implement all appropriate changes to the SWPPP, including all industrial stormwater BMPs used to comply with Appendix A, in accordance with the documentation, conclusions, and other measures required in this Appendix.

3. If the terms and conditions of Appendix A cannot be met, the Permittee is not authorized to discharge industrial stormwater under this permit. The Permittee must notify the Agency and seek coverage under an individual NPDES/SDS permit in accordance with Minn. R. ch. 7001.

B. Specific Requirements for Industrial Facility Discharges Regulated Under Minn. R. 7050.0180, Nondegradation For Outstanding Resource Value Waters

1. Industrial facilities are not authorized to discharge industrial stormwater to the Outstanding Resource Value Waters listed under Part B.2 of this Appendix unless the Permittee complies with all terms and conditions of this permit, including the applicable elements of Part F of Appendix A. Appendix A, Part B, applies to any industrial facility that has a monitoring location from which a discharge flows to, and is within one mile of, the Outstanding Resource Value Water, if after the effective date the Outstanding Resource Value Water was designated, the industrial facility either:

a. Commenced discharging industrial stormwater, or

b. Changed industrial stormwater discharges in a manner (location, volume, or any other manner) such that an increase in one or more pollutants has occurred.

2. Restricted discharges as defined in Minn. R. 7050.0180, subp. 6, 6a, and 6b.

a. Lake Superior, except those portions identified as a prohibited discharges zone.

The Permittee shall comply with F.1.

b. The Mississippi River, those portions from Lake Itasca to the southerly boundary of Morrison County that are included in the Mississippi Headwaters Board comprehensive plan dated February 12, 1981.

The Permittee shall comply with F.1.

c. Lake trout lakes, identified in Minn. R. 7050.0460 to 7050.0470.

The Permittee shall comply with F.1, and F.3.

d. Federal or state designated scenic or recreational river segments: Saint Croix river, entire length; Cannon River from northern city limits of Faribault to its confluence with the Mississippi River; North Fork of the Crow River from Lake Koronis outlet to the Meeker-Wright County line; Kettle River from north Pine County line to the site of the former dam at Sandstone; Minnesota River from Lac qui Parle dam to Redwood County state aid highway 11; Mississippi River from county state aid highway 7 bridge in Saint Cloud to northwestern city limits of Anoka; and Rum River from state aid Highway 27 bridge in Onamia to Madison and Rice streets in Anoka.

The Permittee shall comply with F.1.

e. Calcareous fens as identified in Minn. R. 7050.0180 subp. 6b.

The Permittee shall comply with F.1, and F.5.

C. Special requirements for industrial facilities that have a monitoring location from which a discharge flows to, and is within One Mile of, Trout Streams listed in Minn. R. 6264.0050, subp. 4.

The Permittee shall comply with F.1, and F.2.

D. Special requirements for industrial facilities that have a monitoring location from which a discharge flows to, and is within One Mile of, Trout Lakes listed in Minn. R. 6264.0050, subp. 2.

The Permittee shall comply with F.1, and F.3.

E. Special requirements for industrial facilities that have a monitoring location from which a discharge flows to, and is within One Mile of, Wetlands as defined in Minn. R. 7050.0186, subp 1a.B.

The Permittee shall comply with F.4.

F. Additional Required BMPs

If the Permittee cannot certify a condition of No Exposure, as described in Part I.I, the Permittee shall comply with the appropriate requirements below.

1. The Permittee shall develop and implement stormwater control measures, including BMPs that restrict the facility industrial stormwater discharges to the extent necessary to preserve the existing high quality, or to preserve the wilderness, scientific, recreational, or other special characteristics that make the water an Outstanding Resource Value Water. In addition, a benchmark value of 65 mg/L for Solids, Total Suspended (TSS) applies to the discharge at a benchmark monitoring location, instead of 100 mg/L as specified in the sector requirements of Part VII. If the Permittee has a waiver from the requirements to conduct benchmark monitoring in accordance with Part V.B.6, the benchmark value does not apply.

The SWPPP shall contain the following components;

a. A selection of industrial stormwater volume reduction and/or pollutant concentration reduction BMPs, designed to restrict industrial stormwater discharges to the designated water. The SWPPP shall include necessary calculations to demonstrate the effectiveness of the chosen BMPs in reducing volume and/or pollutant concentrations. BMP options the Permittee can consider for this purpose include, but are not limited to, removing industrial activities and/or significant materials from contact with rain or snowmelt, re-use of industrial stormwater, stormwater ponding, infiltration, filtration, porous pavement, constructed wetlands, evaporation, evapotranspiration, etc.

b. A narrative discussion describing how the Permittee will ensure the BMPs used will be monitored and maintained, long-term, to ensure the industrial facility will sustain restricted industrial stormwater discharges.

2. The Permittee shall design and implement BMPs specifically protecting the water quality of trout streams from excess temperature increases. Any associated calculations and design details shall be included with the SWPPP, as required by F.1.

3. The Permittee shall design and implement BMPs specifically protecting the water quality of trout lakes from excess phosphorus increases. Any associated calculations and design details shall be included with the SWPPP, as required by F.1.

4. The Permittee shall comply with the requirements of Minn. R. 7050.0186, WETLAND STANDARDS AND MITIGATION.

5. The Permittee shall seek approval from the Minnesota Department of Natural Resources (DNR) for all discharges to a Calcareous Fen. Any approved management plan and/or the Permittees petition to seek approval from the DNR shall be kept with the SWPPP or as a separate document.

This page was last edited on 3 April 2013, at 18:22.