Stormwater runoff is generated when precipitation from rain and snowmelt events events flows over land or impervious surfaces and does not percolate into the ground. As the runoff flows over the land or impervious surfaces (paved streets, parking lots, and building rooftops), it accumulates debris, chemicals, sediment or other pollutants that could adversely affect water quality if the runoff is discharged untreated. The primary method to control stormwater discharges is the use of best management practices (BMPs). In addition, most stormwater discharges are considered point sources and require coverage under an NPDES permit.

 

Nebraska Construction Stormwater General Permit

NDOR obtains an NPDES Construction Storm Water General Permit whenever construction activities will disturb over one acre of land. A Storm Water Pollution Prevention Plan (SWPPP) that addresses erosion and sediment control is developed as a requirement of the permit and is implemented throughout the construction project.

 

NDOR Municipal Separate Storm Sewer System (MS4) Permit

NDOR was permitted as an MS4 in 2007. A Stormwater Management Plan was developed and is currently being implemented to address the six program areas listed below.

 

1. Education & Outreach

NDOR conducts a number of educational efforts to inform its employees and the public it serves. Education & outreach activities include manuals, brochures, newsletters, training & certification workshops, conference sponsorships, the utilization of databases for measuring effectiveness, and our Stormwater website. The following link will provide you with additional information related to NDOR’s education and outreach program:

 

2. Public Participation & Involvement

The goal of the Public Education, Outreach and Involvement Program is to distribute messages that will result in practices implemented which prevent stormwater pollution and, when appropriate, engage the target audience into the process of developing, improving, and providing stormwater management Best Management Practices.

NDOR engages the public in environmental stewardship programs relating to stormwater and water quality protection, such as the Adopt-A-Highway program. NDOR regularly participates in meetings that are open to the public, and, when appropriate, these meetings can be used as a venue to solicit input from the public regarding the Stormwater Management Program.

 

3. Illicit Discharge Detection & Elimination

The goal of the Illicit Discharge Detection and Elimination Program is to facilitate the timely identification and removal of prohibited stormwater connections and discharges. NDOR detects and removes illegal discharges to their storm drain system.

 

4. Construction Stormwater Program

The goal of the Construction Stormwater Program is to reduce pollutants (primarily sediment) in stormwater runoff from construction activities. Stormwater management is just one part of NDOR’s comprehensive Environmental Compliance Oversight Plan.

 

5. Post Construction Stormwater Program

The goal of the Post Construction Stormwater Program is to minimize the discharge of potential pollutants in the highway's post project stormwater runoff to waters of the state.

 

6. Pollution Prevention and Good Housekeeping Program

The goal of the Pollution Prevention and Good Housekeeping Program is to engage public employees and public properties in the best practices of stormwater protection.

 

For additional information regarding NPDES permits please visit the Nebraska Department of Environmental Quality website.

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