Why is stormwater run-off a problem?

When it rains, the water (often called runoff or stormwater) runs off roofs and driveways into the street catch basins. Runoff picks up fertilizer, oil, pesticides, dirt, bacteria and other pollutants as it makes its way through storm drains to the Detroit Water & Sewerage Department (DWSD) wastewater treatment plant.

The City of Royal Oak is charged by DWSD for treating our combined stormwater and sanitary sewerage.

When property owners take action to soak up the rain, we keep rain closer to where it falls and reduce the runoff from our roofs, driveways, and parking lots. Reducing runoff can help prevent water pollution, reduce flooding and lowers the amount of treatment needed.

Impervious vs pervious

Show All Answers

1. Is Royal Oak the only city that has a stormwater utility?
2. Why is stormwater run-off a problem?
3. What are some examples of pervious & impervious surface areas
4. How is impervious surface area calculated?