A Suffolk County legislator is looking to protect Port Jefferson Station and Terryville’s groundwater, and if her plan reaches completion, it will also preserve a massive chunk of green space.

The county passed a bill sponsored by 5th District Legislator Kara Hahn (D-Setauket) Oct. 3 that allows Suffolk to begin seeking appraisals from landowners of 62 separate properties within the Terryville Greenbelt, an approximately 75-acre plot of land, of which about 40 acres has already been preserved by Town of Brookhaven through open space land acquisitions.

The town is allowed by law to acquire open space based upon environmental sensitivity. Hahn’s bill allows for the appraisal of about 17 acres of the remaining unprotected land within the parcel, designated as a special groundwater protection area, located south of Route 112 and adjacent to the rear of Comsewogue High School. The bill requires signing by County Executive Steve Bellone (D) before it becomes law; then further legislation will be required to complete the purchases.

“For the past 50 years the Port Jefferson Station/Terryville community has worked to offset its rapid growth with safeguards of its quality of life and environment,” Hahn said in a statement. She also serves as the chairwoman of the Legislature’s Environment, Planning and Agriculture Committee. “Protecting these parcels, located within a special groundwater protection area in perpetuity highlights the continued commitment of Suffolk County to being a partner in this careful balance that ensures not only the local environment but also our resident’s quality of life.”

The plan has been in the works since 2003, when Terryville resident and preservation proponent Louis Antoniello began advocating for the protection of the greenbelt. After years with minimal action, in 2010, with support from former Brookhaven Supervisor Mark Lesko (D) and former Councilman Steve Fiore-Rosenfeld (D-East Setauket), Brookhaven purchased 16 parcels of open space within the Terryville Greenbelt for $648,000.

“The dream of creating a greenbelt around Comsewogue High School started back in 2003 — we never gave up on the dream and now the dream is going to become a reality,” Antoniello said in a statement. “The preservation of the property helps to protect our drinking water; creates an ecosystem for the many species of animals that make the greenbelt their home and it creates a living biology classroom for the children in the Comsewogue school district.”

Antoniello, who thanked Hahn and Brookhaven Councilwoman Valerie Cartright (D-Port Jefferson Station) for their efforts in advancing the legislation during a phone interview, said the preservation of the land is important because it filters more than a million gallons of water per year that then proceeds into an aquifer, which holds much of the area’s drinking water. Antoniello also served as chairman of the Land Use, Parks and Open Space Committee for a 2008 Port Jefferson Station/Terryville hamlet study done in cooperation with the town.

According to the New York State Department of Environmental Conservation, nearly all of Long Island’s drinking water comes from underground aquifers.

Charles McAteer, chairman of the Setauket to Port Jefferson Station Greenway Trail and also advocate for the preservation of open space, spoke in favor of Hahn’s bill.

“It is good to see more acres set aside to remain as Long Island woods for future generations to enjoy,” he said in an email. “This will allow the treed land to filter down rainwater to our Long Island aquifer system. It is a win-win for all of us in the Port Jefferson Station/Terryville hamlet.”