liberty township
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Environmental Commission

Liberty Township Environmental Commission
349 Mountain Lake Road, Great Meadows, NJ 07838
908.637.4579, x26

The Environmental Commission serves as an advisory board to the Land Use Board and the Township Committee. It is concerned with the quality of the surface and ground water, air, soils, flora, fauna, and general life in our community.

CoCoRAHs Volunteers

The Warren County Mosquito Commission relies on rainfall surveillance to guide larval mosquito control. The daily precipitation maps provided by the Community Collaborative Rain Hail & Snow Network (CoCoRaHS) helps guide these efforts. CoCoRaHS is a community based network of volunteers across the US and Canada that report daily precipitation from their home, school or work based rain gauges. There are several areas in Warren County where there are currently no CoCoRaHS volunteers, for example Allamuchy, Independence, Phillipsburg, Lopatcong, and Pohatcong, etc. However, more volunteers in any township, town or borough would be greatly appreciated.

CoCoRaHS is great way to be involved with citizen science. Training is provided online so that all readings and measurements are consistent. The only thing you need to begin is an official rain gauge! Check out the link below or call our office for more information!

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Peaceful Garden: A Native Wildflower Meadow 

In 2019 the Liberty Twp. Environmental Commission received a grant from ANJEC to coordinate and establish a native wildflower meadow near the pavilion at Mountain Lake. The Environmental Commission coordinated efforts with Public Works and volunteers to plant over 100 quart-size natives, including 11 different species, to create a low-maintenance, habitat supporting, and seasonal blooming meadow. Find more information here and learn how you can create a native meadow in your own yard. 

Further Education

Historical Projects

View projects from previous years ...

Stormwater Information

Link to the Stormwater Control Ordinance Number 06-03:

Link to DEP stormwater page:

Bear Awareness Fact Sheet

New Jersey is home to all kinds of beautiful wildlife – including black bears.

Black bears are getting a lot of attention these days, for the wrong reasons. They're venturing too close to homes and into backyards, looking for food. Bears that look for food near your home or in your yard likely have learned bad habits from people who feed them intentionally, or unintentionally by carelessly leaving out food or garbage.

Read more ...


Schedule of regular meetings of the liberty township environmental commission.

Take notice that, pursuant to the provisions of the Open Public Meetings Act, Chapter 231, PL 1975, the regular meetings of the Liberty Township Environmental Commission are to be held on the third Thursday of each month, beginning at 7:00 pm at the Liberty Township Municipal Building, 349 Mountain Lake Road, Great Meadows, NJ 07838

Meeting Dates

Meeting Minutes

Annual Report

Official information:

A series of studies was undertaken to provide data on one of the townships most valuable resources, the watershed of Mountain Lake, the largest natural glacial lake in Warren County.

  • 1992: Mountain Lake Watershed Study done by Warren County Soil Conservation.
  • 1995: DEP grant Environmental Resources Inventory – Eric Snyder Associates $5,000
  • 1998: DEP grant Water Quality Study of Mountain Lake – Amy Greene Assoc. $5,000
  • 1999: DEP grant Bathymetric Map of Mountain Lake – Aquatic Analysts, Inc. $5,000
  • 2000: DEP grant Phase I Storm Water Study of Mountain Lake – Aquatic Analysts $5,000
  • 2001: DEP grant Phase II NPS Loading of Phosphorous Modeling – Aquatic Analysts $5,000
  • 2003: Clean Water Act 319h grant for filtering storm drains at Mountain Lake. – Applied Water Management, Inc.
  • 2005: Additional funds for stormwater monitoring- $47,628

Environmental Brochures:

Open Space Advisory Committee

Take notice that, pursuant to the provisions of the Open Public Meetings Act, Chapter 231, PL 1975, the Liberty Township Open Space Advisory Committee meetings shall begin at 7:30 pm on the fourth monday of each month in the Municipal Building, 349 Mountain Lake Road, Great Meadows, NJ as posted.

The Open Space Advisory Committee makes recommendations to the Township Committee for the purchase of properties utilizing the Open Space Tax, and oversees the management of those properties.

The Committee oversees the boat launch, giving public access to Mountain Lake. The fee for launching is $5.00.

If anyone in interested in putting their land into preservation or learn more about the Township's Open Space program please feel free to contact Kathy Dossena at 908.637.4579, ext 30 for more information.

View Open Space Plan