NPDES Phase II

The Village of Huntley (Village) is an operator of a Municipal Separate Storm Sewer System (MS4) as defined by the Illinois Environmental Protection Agency’s (IEPA) National Pollutant Discharge Elimination System (NPDES) Phase II program. The Village has applied for and obtained coverage under the IEPA’s General NPDES Permit for Discharges from Small Municipal Separate Storm Sewer Systems.

A central requirement of the NPDES Phase II Permit is the development, implementation and enforcement of a stormwater management program designed to reduce or prevent the discharge of pollutants from their MS4 to the maximum extent practicable, to protect water quality and to meet the applicable water quality requirements of the Illinois Pollution Control Board, Clean Water Act and associated standards. The permittee’s stormwater management program must be based on the following 6 minimum control measures:

1. Public Education and Outreach on Stormwater Impacts
2. Public Involvement and Participation
3. Illicit Discharge Detection and Elimination
4. Construction Site Stormwater Runoff Control
5. Post Construction Stormwater Management in New Development and Redevelopment, and
6. Pollution Prevention and Good Housekeeping for Municipal Operations

The NPDES Phase II program for small MS4’s began in 2003 and runs in 5 year permit cycles. The most recent permit cycle ended on February 28, 2021 and the IEPA is preparing the revised permit, but it has not yet been issued. The permit will be effective on March 1, 2021 and run to March 1, 2026.

To report a spill or other waterway pollution concern, please call the Public Works and Engineering Department at 847-515-5222.