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Arkansas Storm Water Program

Arkansas Storm Water Program. Arkansas Update On Construction, Industrial & Small MS4. Construction Storm Water. General Permit ARR150000. Combined general permit issued September 30, 2003, effective November 1, 2003 Permit covers all regulated construction sites

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Arkansas Storm Water Program

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  1. Arkansas Storm Water Program Arkansas Update On Construction, Industrial & Small MS4

  2. Construction Storm Water

  3. General Permit ARR150000 • Combined general permit issued September 30, 2003, effective November 1, 2003 • Permit covers all regulated construction sites • Permit is currently being modified • Modified permit should go draft in July

  4. All sites ≥1 acre (But small sites have fewer requirements) Activities part of a larger common plan of development Who’s affected?

  5. Small, <5 Acres Automatic Permit Coverage Medium, 5-10 or 5-20 Acres NOI, Fee (2 weeks prior) Large, >10 or >20 Acres NOI, Fee, SWPPP Are you small, medium or large?

  6. Shaded area – Large site ≥10 acres Non-shaded – Large site ≥ 20 acres

  7. Develop Storm Water Pollution Prevention (SWPP) Plan before starting Use Best Management Practices (BMPs) to reduce runoff Inspect, maintain and document storm water controls Every two weeks 24 hours after ½-inch rainfall Post Notice on site Keep SWPPP on site What all regulated sites must do

  8. Industrial Storm Water

  9. General Permit ARR000000 • Most recent permit was effective n February 1, 2005 • Permit covers 10 of the 11 regulated industrial categories (Excludes construction)

  10. Industrial Storm Water • Permit Requirements • NOI, Fee • Develop & Implement SWPPP • Effluent Limits for Coal Pile Runoff • Annual Sampling for 12 Monitoring Categories • Annual DMR Submittal • Toxicity Testing for Certain Permittees • “No Exposure” Exclusions • Must meet 40 CFR 122.26(g)

  11. Municipal Separate Storm Sewer System (MS4)

  12. Storm Water Phase I – MS4 • Medium/Large MS4 = Little Rock • Renewed ARS000002, Effective September 1, 2005 • Permit requires • Sampling of representative outfalls • Storm water management program that meets that meets the 6 minimum measures • Permit requires emphasis on Education/Outreach and Construction site control

  13. Fayetteville-Springdale Fort Smith Hot Springs Jonesboro Little Rock Memphis Pine Bluff Texarkana Storm Water Phase II UAs Listing

  14. Storm Water Phase II – MS4 • Designation Criteria for >10,000 & 1,000 Density • Direct Discharge to 303d • Direct Discharge to ERW • >50% Population Growth • Conway and Maumelle

  15. Storm Water Phase II – MS4 • Required to be Permitted/Waiver • 49 Cities/Counties • 39 Permitted • 7 Universities • 5 Permitted • 4 Military Bases • 1 Permitted

  16. Storm Water Phase II – MS4 Waivers available based on: • Population • <1,000 or < 10,000 • Pollutant contribution • TMDL or equivalent analysis • ADEQ evaluation and determination.

  17. General Permit ARR040000 • Permit Requirements • Implement & Develop SWMP • SWMP must cover 6 minimum measures • Annual update reports required • 15 months after effective date • Every year thereafter • Reports still not submitted for 8 permittees due in 2005

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