LAKE ONTARIO SHORELINE, WESTERN
(SEGMENT ID 0301-0071)

Waterbody Segment Assessment Factsheet

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IMPAIRED SEGMENT

Introduction

This fact sheet contains the most recent water quality assessment information for this waterbody segment. The assessment is based on water quality data that meet the quality assurance requirements of NYSDEC’s Division of Water (DOW). An outline of the process used to assess the quality of New York State waters is described in the NYSDEC’s Consolidated Assessment and Listing Methodology (CALM).

WATERBODY INFORMATION

• Water Index Number: Ont (portion 20)
• Segment Classification: A
• Waterbody Type: G Lakes Shore
• Size: 28.2 Miles
• Drainage Basin: Lake Ontario
• Hydrologic Unit Code: 0413000106
• County: Orleans
• Segment Description: Shoreline from point breeze to olcott

Assessment of Best Use

Background

New York State waterbodies are classified to reflect their best use(s), and the assessment of a waterbody is based on the ability of waters to support those uses. This section lists whether this waterbody segment supports its best use(s).

Best Use	Use Assessment	Use Assessment Confirmation	Pollutant(s) Cause(s)	303(d) Year	Integrated Reporting Category
Fishing	Impaired	Confirmed	Dioxin	1998	IR5
			Fecal Coliforms	2012
			Mirex	1998
			PCBs
			Total Phosphorus	2010
Secondary Contact Recreation	Impaired	Confirmed	Problem Species	NA	IR4c
			Fecal Coliforms	2012	IR5
			PCBs	1998
			Total Phosphorus	2010
Primary Contact Recreation	Impaired	Confirmed	Fecal Coliforms	2012	IR5
			PCBs	1998
			Total Phosphorus	2010
Source of Water Supply	Impaired	Unconfirmed	Dioxin	N/A	IR3
			Fecal Coliforms
			Filamentous Algae
			Mirex
			PCBs
			Total Phosphorus
Shellfishing	N/A for Waterbody Class	—	—	—	—

Water Quality Monitoring Data and Information

Background

Water quality monitoring data used for assessments may come from a variety of sources, including but not limited to NYSDEC’s surface water monitoring and regulatory programs, and monitoring network partnerships on rivers, streams, lakes, reservoirs, estuaries, and coastal waters.

For access to current and historical DOW data collected by our stream and lake monitoring programs, please use the Division of Water Monitoring Data Portal.

Data Source	Pollutant(s)
Historical Data Source	Dioxin
	Fecal Coliforms
	Filamentous Algae
	Mirex
	Phosphorus
	Problem Species
	Total PCBs

For more information, or to sign-up for email updates from NYSDEC, visit our website: https://dec.ny.gov/environmental-protection/water