As storm water flows over driveways, lawns, and sidewalks, it picks up debris, chemicals, dirt, and other pollutants. Storm water can flow into a storm sewer system or directly to a lake, stream, river, wetland, or coastal water. Anything that enters a storm sewer system is discharged untreated into the water bodies we use for swimming, fishing, and providing drinking water. Polluted runoff is the nation’s greatest threat to clean water.

Overview of the Community Storm Water System
The City of Mentor drains primarily to Lake Erie with two exceptions. About 25% of the City in the southwest corner lies within the Chagrin River watershed. About 3% of the City in the southeast corner lies within the Grand River watershed. Each of these sub watersheds is comprised of local watersheds that drain into ditches and creeks. Mentor is 28.4 square miles in area and is urban in nature. Its infrastructure provides both sanitary and storm water service. There are a small number of home sewage treatment systems, or septic systems, in the City. Retention and/or detention basins have been required in new developments for many years to control increased storm water runoff. The Engineering Department and the Public Works Department currently address storm water issues within the City. Recent improvements to the storm sewer system have relieved flooding problems and minimized inconveniences. Mentor City Council formally approved the City’s Storm Water Management Plan on March 4, 2003.

In accordance with the National Pollutant Discharge Elimination System (NPDES) Phase II regulations mandated by the U.S. Environmental Protection Agency (EPA), the City of Mentor has developed a storm water quality management plan that is based on a set of best management practices (BMPs). They include:

• Public Education and Outreach
• Public Involvement and Participation
• Illicit Discharge Detection and Elimination
• Construction Site Storm Water Runoff Control
• Post-Construction Storm Water Management
• Pollution Prevention/Good Housekeeping

Legal Authority to Implement the Storm Water Management Program
The City of Mentor has the legal authority to implement its storm water management plan (SWMP) under Article III, Section 3.06 of the Charter granting City Council the authority to adopt regulations as may be necessary for promoting peace, health, safety, and general welfare of their citizens.

Financial Ability to Implement the Storm Water Management Program
The City of Mentor currently funds the activities necessary to implement its SWMP from the general operating budget. Periodically, the City Manager will evaluate the SWMP and, if necessary, may suggest alternative funding arrangements. Further information on the City’s storm water management plan can be obtained from the City Engineer’s office by calling (440) 255-1100.

City Drainage Design Standards

Helpful Links
Following are some links that will provide additional helpful information on storm water:

U.S. Environmental Protection Agency
Ohio Environmental Protection Agency
Chagrin River Watershed Partners, Inc.
Center for Watershed Protection
NOACA (Northeast Ohio Areawide Coordinating Agency)

Lake County Soil and Water Conservation District
Lake County Storm Water Management Department
United States Geological Survey’s (USGS) Water Science for Schools

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