Monhagen Brook Watershed
COMING SOON! The Monhagen Brook Watershed Plan is in the final stages of completions and will be posted soon.

The OCWA in partnership with the OC Department of Planning and others was awarded a grant through the NYS DEC's Hudson River Estuary Program to complete a comprehensive Watershed Plan for the Monhagen Brook. Through the course of the project, a coalition of municipal representatives, stakeholders and local agencies will be set up to guide the planning process for the remediation of the Monhagen Brook and its surrounding watershed basin. The project would produce a Watershed Plan document based on outreach to stakeholders, data and reports on existing conditions in the watershed, and priorities and goals set by the stakeholders. The Plan will identify long-term desired outcomes, including: a restored Brook, public access to the stream and the restoration of green space in the urban setting that would give neighboring communities access to the ecosystem services a healthy environment provides. We were currently setting up the coalition. If you would like to be part of this crucial group of volunteers, contact the OCWA at (845) 615-3868 or send an email to

So where is the Monhagen Brook? The Monhagen Brook watershed covers portions of northern Orange County, NY in the City of Middletown and Towns of Wallkill and Wawayanda. The Brook is a tributary of the Wallkill River, a major tributary of the Hudson. The Brook crosses Fulton Street in the City. At Monhagen Brook�s headwaters is Monhagen Lake, the water supply reservoir for the City of Middletown. The stream travels past the City water treatment plant, through residential neighborhoods southeast across the city. When the stream reaches the edge of Downtown, it is encased in concrete for almost two miles. The stream exits its encasement as it flows past the City sewage treatment plant, and then flows southeast to a large area of wetlands and joins the Wallkill River five miles east.

Advisory Committee Meeting Documents:
Advisory Committee Meeting Agenda August 9, 2017

Documents and Reports:
Life at the Water's Edge by the Lower Hudson Coalition of Conservation Districts
NYSDEC Impaired Waterbodies List, Monhagen Brook & Tributaries (2007)
Stream Water Quality (Biomonitoring) Chart (1986-2014)

Maps, Presentations and Outreach Materials:
Monhagen Brook Watershed Map
Project Kickoff Meeting Presentations (All) October 26, 2016

We have also set up a Facebook Group for everyone to enjoy and share information and photos. Click on the Monhagen Brook Watershed Facebook Group link and JOIN!