Below are EPA's National Pollutant Discharge Elimination System (NPDES) municipal separate storm sewer system (MS4) final permit and supporting documents for the City of Idaho Falls and the Idaho Transportation Department District #6 (co-permittees) within the Idaho Falls Urbanized Area.
- Permit number: IDS028070
- Effective date: October 1, 2020
- Permit expires: September 30, 2025
Related permits:
- Idaho Transportation Dept. (ITD) District #1 MS4
- ITD District #3 MS4 (Boise/Nampa)
- Boise/Garden City Area MS4 (including ITD District #3)
- Pocatello Area MS4 (including ITD District #5)
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NPDES Stormwater Permit, City of Idaho Falls and Idaho Transportation Dept. District #6 MS4s, #IDS028070 (PDF)(62 pp, 756 K,
February 4, 2020)
Final permit.
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NPDES Permit Fact Sheet, City of Idaho Falls and Idaho Transportation Dept. District #6 MS4s, #IDS028070 (PDF)(44 pp, 780 K,
October 2019)
Technical basis for permit.
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Storm Water Management Program (SWMP) Template, City of Idaho Falls and Idaho Transportation Dept. District #6 MS4s, #IDS028070 (PDF)(25 pp, 938 K,
February 2020)
Appendix B.1
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Annual Report Form, City of Idaho Falls and Idaho Transportation Dept. District #6 MS4s, #IDS028070 (PDF)(22 pp, 909 K,
February 2020)
Appendix B.2
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Response to Comments on Draft NPDES Stormwater Permit, City of Idaho Falls and Idaho Transportation Dept. District #6 MS4s, #IDS028070 (PDF)(16 pp, 1 MB,
February 2020)
EPA's responses to public comments on the October 2019 draft permit.