Join Our Capital Campaign
So far we have raised $50,000 towards our $50,000 target! That’s 100% of the total!
Help us reach this goal by December 31 as we celebrate our
35th year serving your community. Your donations will be
matched up to $15,000 by the Galvan Foundation.
With this amount we can continue and expand:
• Educational programs
• Monitoring programs
• Habitat restoration programs
• Efforts to address development issues
• Office hours for community outreach
• Participation in local and regional decision making affecting Hempstead Harbor
Our Mission

The Coalition to Save Hempstead Harbor (CSHH) is a nonprofit organization founded in 1986. CSHH is dedicated to identifying and eliminating environmental threats to Hempstead Harbor and the surrounding communities. Our objective is to advance the public interest in protecting and restoring our local environment to its full ecological and economic potential.
The fundamental force behind CSHH’s efforts is the belief that concerned and informed citizens can make a difference in events that shape the future. We seek to increase awareness of environmental issues and promote a greater appreciation of the local environment. Most important, the public is encouraged to participate in local conservation issues.
What we are up to!
- October 2020
October 6 Press conference on 2020 Long Island Sound Report Card October 7, 14, 21, 28 Water monitoring, core program for Hempstead Harbor October 7, 14, 21, 28 Water monitoring, Tappen Marina monitoring program October 13, 27 Water monitoring, Long Island Sound Unified Water Study October 13 LIS marsh conservation webinar October 14 HHPC meeting - September 2020
September 3, 9, 16, 23, 30 Water monitoring, core program for Hempstead Harbor September 3, 9, 16, 23, 30 Water monitoring, Tappen Marina monitoring program September 4, 17, 29 Water monitoring, Long Island Sound Unified Water Study September 8 Meeting at Glen Cove STP re: area storm drains and discharges
September 9 HHPC meeting September 10 Meeting of LISS Citizens Advisory Committee and Science and Technical Advisory Committee September 17 Unified Water Study meeting on data from LIS bays September 21
Meeting in Glenwood Landing re: possible Powerhouse Drain filtration system September 22 CSHH Board of Directors meeting September 27 Final soil tests for the Glenwood Landing Habitat Restoration Program September 30 University of CT sponsored on LIS data-sharing platform - August 2020
August 5, 12, 19, 26 Water monitoring, core program for Hempstead Harbor August 5, 12, 19, 26 Water monitoring, Tappen Marina monitoring program August 6, 18 Water monitoring, Long Island Sound Unified Water Study August 6 Water monitoring, macrophyte assessment for Unified Water Study August 13 Nassau County Hempstead Bay monitoring demonstration meeting August 31 Meeting examining bacteria data from shoreline outfalls - July 2020
July 1, 8, 15, 22, 29 Water monitoring, core program for Hempstead Harbor July 1, 8, 15, 22, 29 Water monitoring, Tappen Marina monitoring program July 6 Long Island Sound Unified Water Study online SOP review/audit July 8, 21 Water monitoring, Long Island Sound Unified Water Study July 10 Nassau County Watershed Plan Stakeholder meeting (virtual) July 15 Water monitoring, macrophyte assessment for Unified Water Study July 21 CSHH Board of Directors meeting (virtual) July 24 Water monitoring, macrophyte assessment for Unified Water Study July 29 NYSDEC Long Island Pathogen TMDL Work Group call - June 2020
June 3, 10, 17, 25 Water monitoring, core program for Hempstead Harbor June 3, 10, 17, 25 Water monitoring, Tappen Marina monitoring program June 3 HHPC meeting (virtual) June 11 LISS Citizens Advisory Committee Meeting (virtual) June 16 CSHH Board of Directors meeting (virtual) June 22 Long Island Sound Unified Water Study online training program June 23 Water monitoring, startup of Long Island Sound Unified Water Study June 24 LISS Water Monitoring Work Group (virtual) June 25 NY Sea Grant webinar on Decoding Brown Tides