Water Fact

Water Fact

Monroe County Water Authority's water is a great value - approximately 1¢ for 4 gallons - delivered to your home


Source Water Assessment Program


A source water assessment is a study and report, unique to each water system, that provides basic information about the water used to provide drinking water. The Safe Drinking Water Act (SDWA) Amendments of 1996 requires states to develop and implement Source Water Assessment Programs (SWAP) for each of the drinking water sources in the state.

The New York State Department of Health (NYSDOH) recently completed Source Water Assessments for the raw water sources used by MCWA. The purpose of this program is to compile, organize, and evaluate information regarding possible and actual threats to the quality of public water supply (PWS) sources. It is important to note that source water assessment reports estimate the potential for untreated drinking water sources to be impacted by contamination. These reports do not address the safety or quality of treated finished potable tap water. More information on the SWAP process can be found at the EPA’s SWAP website. The assessment summaries for the supplies used by MCWA are provided below.

Treatment Plant
Assessment Summary
Shoremont and Webster WTPs (MCWA) Lake Ontario

The Great Lakes’ watershed is exceptionally large, and it is beyond the scope of the SWAP to inventory and describe susceptibility to all the potential sources of potential contamination. Overall, the quality of drinking water collected from the Great Lakes is considered to be excellent. Some of the general concerns for Great Lake public drinking supplies include: storm generated turbidity, wastewater, toxic sediments, shipping related spills, and problems associated with exotic species (e.g. zebra mussels- intake clogging and taste and odor problems). It is important to note that raw drinking water quality is most often determined by the overall lake’s quality, with near shore impacts being widely diluted in the Great Lakes.


It has been determined that this intake is not directly impacted by activities on the nearby shoreline. Therefore, drinking water concerns are determined by overall quality of Lake Ontario.


For more information contact the Monroe County Department of Public Health at 585-753-5057.

Hemlock WTP
(City of Rochester)
Hemlock and Canadice Lakes

Though the assessment of the Hemlock/Canadice Lake watershed identified several potential sources of contamination, none were particularly noteworthy. The City’s ownership and control of a large amount of property surrounding the lakes, coupled with its routine surveillance and testing programs, helps assure on-going protection of this resource. Testing performed to date confirms that contamination from human activity is negligible.


For more information contact theMonroe County Department of Public Health at 585-753-5057.

Corfu WTP
well water

Although all ground water are susceptible to contamination from agricultural and industrial surface sources, this source is afforded protection by the confined nature of the aquifer and the absence of noteworthy contamination sources in the immediate area.


For more information contact the Genesee County Health Department at 585-344-2580.

Erie County Water Authority
Lake Erie and Niagara River Water quality and source assessment information for this supply can be found at or contact the Erie County Health Department at 716-858-6966.

 Additional information on the environment and what you can do to protect the source of your drinking water can be found at:

The Great Lakes Information Network (GLIN) is a partnership that provides one place online for people to find information relating to the binational Great Lakes-St. Lawrence region of North America. GLIN offers a wealth of data and information about the region's environment, economy, tourism, education and more. Thanks to its strong network of state, provincial, federal and regional partner agencies and organizations, GLIN has become a necessary component of informed decision making, and a trusted and reliable source of information for those who live, work or have an interest in the Great Lakes region.

The New York State Department of Environmental Conservation exists to: "conserve, improve, and protect the New York State's natural resources and environment, and control water, land and air pollution, in order to enhance the health, safety and welfare of the people of the state and their overall economic and social well being."

The Monroe County Environmental Management Council The Monroe County Environmental Management Council (EMC) is advisory to the County Executive and the County Legislature on environmental issues. It is a division of the Department of Environmental Services. Membership is comprised of volunteers from every town in the county as well as the City of Rochester and the Village of Honeoye Falls. Ten at-large members and representatives of county agencies are also members of the EMC. Meetings are held on the first Wednesday of each month (except June, July, and August) at 4 PM; locations vary per month. All meetings are free and open to the public.

 The Water Education Collaborative (WEC) is a coalition of organizations that work together to increase water quality education in the community. The mission of the WEC is to focus the combined resources of member organizations to provide water quality education services to the public within the Genesee Region Watershed. This is accomplished by: 1) educating and involving citizens in protecting water quality, 2) serving as a resource/clearinghouse for water quality education programs, and 3) seeking the resources to support water education programs.

 Center for Environmental Information: a private, nonprofit, education organization, founded in Rochester, New York, in 1974. CEI provides information and communication services, publications, and educational programs in order to advance public understanding of environmental issues, act as a communication link among scientists, educators, decision makers and the public and advocate informed action based on the free exchange of information and ideas.