The City of Rochester's primary water supply is from Canadice and Hemlock Lakes, located approximately 28 miles south of Rochester in Livingston and 
Ontario Counties. Water from these lakes is treated at the Hemlock Water Filtration Plant and then transmitted to the City using a system of tunnels, conduits, and storage reservoirs.
How to Make an Appointment for a Tour
The City offers tours of the water filtration plant and the three open-air reservoirs: Cobbs Hill, Highland, and Rush. To schedule a appointment for a free tour, or if you have questions or concerns, please call the Bureau of Water at (585) 428-6680, Monday through Friday, between 7:30 a.m. and 4:30 p.m.
To visit the Hemlock or Canadice Watersheds, click here for more information.