The Clean Water Act (CWA) dramatically improved the quality of U.S. waterbodies. However, 40 % of the nation's waters still do not meet standards and the leading source of pollution is runoff.
The National Pollutant Discharge Elimination System (NPDES) permitting program addresses stormwater discharges. Phase I covers stormwater from medium and large municipal separate storm sewer systems (MS4s) with populations of 100,000 or greater, and construction activity disturbing 5 acres of land or greater. Phase II program expands the Phase I program by requiring additional operators of MS4s in urbanized areas and operators of small construction sites. It also authorizes EPA to require permits for other stormwater sources as necessary to implement total maximum daily load (TMDL) allocations.
OMNI Professional Can Help You!
The EPA NPDES Permit Writer's Manual contains several hundred pages on the preparation of permits. NPDES permits can be complicated, however OMNI can help. The OMNI staff is highly qualified to prepare your Stormwater and NPDES permits.
Permits OMNI Can Prepare:
Stormwater Permits
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Industrial
- Construction
- Municipal Separate Storm Sewer Systems (MS4)
NPDES Permits
Best Management Practice
Permit applications must state how the installation will incorporate best management practices for at least six control measures. OMNI can help you select the options that will result in the most commonsense, cost-effective plan for reducing storm water runoff.
Six Control Measures
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Pollution prevention and good housekeeping.
- Illicit discharge detection & elimination.
- Construction site stormwater runoff control for sites of one or more acre.
- Post-construction storm after management in new development & redevelopment for sites of one or more acre.
- Public education & outreach on stormwater impacts.
- Public involvement and participation.
Need Help? OMNI Can Help with the following:
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Stormwater Management Plans
- TMDLs
- Permit Compliance
- Permit Applications
- Develop Stormwater BMPs & Strategies
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