Keep It Clean

    Hoover Crop  

Simple steps you can take at home to  prevent water pollution .

Take a Tour

Watershed Signage

Signage installed at Griggs, O'Shaughnessy & Hoover Reservoirs invites park visitors to  take a self-guided tour along the shoreline & learn about the green infrastructure installed there.

Rain gardens, porous pavement & more can improve the quality of storm water entering the reservoirs that supply our drinking water.

Non-point Source Pollution

Stormwater Runoff

Protect our Waterways
Illustration Courtesy of NCDENR

Rain Gardens

Slow Down, Soak In & Clean Up Stormwater - Naturally
View the Rain Gardens signage placed at Griggs & Hoover Reservoirs

Home Rain Garden IllustrationHow Do They Work?
When it rains, a rain garden acts as a basin to capture and absorb water runoff. See larger illustration. 

Nutrients, oils and other pollutants are then filtered by the soil and plants.

Deep roots and pervious soils help to slow stormwater's flow, filtering out pollutants and keeping surface & ground water cleaner.

Water Fact: Did You Know?
Rain gardens absorb 30% more water than the same size area of turfgrass.

Backyard BouquetPlant A Beneficial Bouquet of Natives
Ohio-native plants have deep root systems and tolerate drought. This means less maintainance & watering. They also provide wildlife habitat. See larger illustration with labeled flowers.

Sow the Seeds, Reap the Benefits
Plant a rain garden in your yard to protect water quality and:

  • Reduce lawn maintainance
  • Minimize area flooding
  • Recharge groundwater