Storm Water Program

What Is Storm Water?

Stormwater runoff is generated when precipitation from rain and snowmelt 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.  Permit to Discharge Stormwater (MS4) stormwater from the City of Toledo is regulated by the City of Toledo Environmental Services under the Municipal Separate Storm Sewer System (MS4) Program. The City is required to apply for coverage under and comply with the Environmental Protection Agency general MS4 permit. As such, the City of Toledo is referred to as an MS4. The six components or “minimum control measures” of the program are:

1. Public education and outreach

2. Public participation/involvement

3. Illicit discharge detection and elimination

4. Construction site runoff control

5. Post construction runoff control, and

6. Pollution prevention/good housekeeping

Grant Funded Green Infrastructure Projects