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

Water Facts

Less than 1% of the world’s fresh water supplies are available for human consumption. 

60% of an adult’s body is water; 78% of a newborn’s body is water. 

Water is the original health beverage - it contains no fat, calories or cholesterol. 

watershed illustrationWe work 24 hours a day, 365 days a year to ensure you have a ready supply of high quality drinking water. We operate and maintain 3 water treatment plants, 26 pump stations, 37 water storage tanks, 3,485 miles of water lines and nearly 27,000 hydrants. 

CDPU delivers over 50 billion gallons of water a year to 1.1 million people. In an average day, 138 million gallons of water is pumped throughout the city with average usage of 122 gallons per person per day. 

watershed (right) is an area of land that drains all water to a common basin, stream, river or lake. Central Ohio Watershed Map 

Urbanization and increases in impervious surfaces (hard, non-porous) are significant threats to the protection of high-quality drinking water sources & aquatic habitats. You can take many simple steps at home to protect our water supply. See “We All Live Downstream” for more information. 

Benefits of protecting our watershed include: quality drinking water sources, clean rivers for recreation, healthy habitat for plants, fish and animals.