Connetquot River Sewer Project Purpose and Goals

The goal of the Connetquot River Sewer Project is to provide sewer service to parcels in the Great River community. The project will remove nitrogen from the Great South Bay and protect the Connetquot River.


Seven Facts You Need to Know About the Connetquot River Sewer Project

  • Private property construction includes, low pressure pump station installation, installation of sewer lines, abandonment of old septic tanks/cesspools, electrical connection and property restoration.
  • Construction is 100% funded by grants.
  • Annual charge to residential homes for yearly operation and maintenance (O&M) will be on average $660.
  • Annual debt service to residential homes on average $119
  • Suffolk County Legislature public hearing on the Map and Plan report October 2, 2018.
  • There will be a referendum vote in January 2019 to approve the proposed sewer district.
  • If the project is not approved by the voters the grant funding will be lost.


There will be two community meetings to address questions regarding the Connetquot River Sewer Project on:

Wednesday, January 16, 2019
7:00 p.m.
Timber Point Elementary School
200 Timber Point Road
East Islip, NY 11730-3397



Public Referendum Information



Date: January 22, 2019
Hours: 6am – 9pm
Location: Great River Fire House
108 Great River Road
Great River, NY 11739
Absentee Ballots: Download Official Special Election Calendar


Why the Connetquot River Sewer Project Is Important

Suffolk County Water Quality Initiatives

Suffolk County completed a Comprehensive Water Resources Management Plan in 2015. The plan clearly determined that nitrogen – which primarily comes from residential cesspools/septic systems and fertilizer – is the primary cause of harmful algal blooms, hypoxia, reduction in shellfisheries and the loss of wetlands and sea grass beds. The loss of wetlands and seagrass beds opens our coastal areas up to greater flooding because the presence of this native vegetation serves as a buffer and sponge to deter storm surge.

The County’s Comprehensive Water Resources Management Plan recommended four sewer projects along Long Island’s south shore rivers to help ameliorate the harmful environmental effects of nitrogen load along the:

  • Carlls River
  • Connetquot River
  • Forge River
  • Patchogue River

The Water Cycle

For more information, please access the Suffolk County Comprehensive Water Resources Management Plan.