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New England Water Science Center

Welcome to the USGS New England Water Science Center. We provide timely and reliable information to Federal, State, Tribal, and local stakeholders on the water resources of Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont. Our data help safeguard human and wildlife health, public safety, and environmental sustainability.

For assistance, contact us on our Connect page.

News

WaterMarks Newsletter - Spring 2025

WaterMarks Newsletter - Spring 2025

New England WSC Products in the First Quarter of 2025

New England WSC Products in the First Quarter of 2025

Meet our New Staff at the New England WSC - March 2025

Meet our New Staff at the New England WSC - March 2025

Publications

Nitrate loads and concentrations from forested watersheds and implications for Long Island Sound

Reduction in point sources of nitrogen has led to improvement in water quality of the Long Island Sound (LIS) since 2000, but changes in nonpoint sources are less clear. A significant yet poorly quantified nonpoint nitrogen source is the forested landscape. Because a large proportion of the LIS basin is forested, even small areal inputs from the forested landscape have a large cumulative...
Authors
Alana B. Spaetzel, James B. Shanley, Leslie A. DeSimone, John R. Mullaney

Base-flow sampling to enhance understanding of the groundwater flow component of nitrogen loading in small watersheds draining into Long Island Sound

Excessive nitrogen discharge is a major concern for the Long Island Sound. Programs have been implemented to reduce point sources of nitrogen to the sound, but little is known about the nonpoint sources. This study aims to better understand the current groundwater contributions of nitrogen from nonpoint sources in the Long Island Sound watershed.During the spring and summer of 2022, the...
Authors
Kaitlin L. Laabs, Janet R. Barclay, John R. Mullaney

Cancer risk and estimated lithium exposure in drinking groundwater in the US

Importance Lithium is a naturally occurring element in drinking water and is commonly used as a mood-stabilizing medication. Although clinical studies have reported associations between receiving lithium treatment and reduced cancer risk among patients with bipolar disorder, to our knowledge, the association between environmental lithium exposure and cancer risk has never been studied in...
Authors
Jiajun Luo, Liang Zheng, Zhihao Jin, Yuqing Yang, William I. Krakowka, Eric Hong, Melissa Lombard, Joseph D. Ayotte, Habibul Ahsan, Jayant M. Pinto, Briseis Aschebrook-Kilfoy

Science

Decoding Harmful Algal Blooms: Unraveling the Mystery

Harmful algal blooms (HABs) are a significant environmental concern due to their potential effects on health, ecosystems, and economies. Algal toxins, which are toxic compounds produced by certain species of cyanobacteria and algae, are commonly linked to these blooms. It's important to note that algal toxins can still be present even when a bloom is not visible, highlighting the need for ongoing...
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Decoding Harmful Algal Blooms: Unraveling the Mystery

Harmful algal blooms (HABs) are a significant environmental concern due to their potential effects on health, ecosystems, and economies. Algal toxins, which are toxic compounds produced by certain species of cyanobacteria and algae, are commonly linked to these blooms. It's important to note that algal toxins can still be present even when a bloom is not visible, highlighting the need for ongoing...
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Coastal Acidification Monitoring in Long Island Sound

Understanding coastal acidification, as it varies from open ocean acidification, is crucial to identifying the unique problems occurring in coastal ecosystems such as Long Island Sound (LIS). The U.S. Geological Survey (USGS) is monitoring water quality parameters throughout LIS and its embayments to evaluate the status and trends of acidification processes in these waters. This project will...
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Coastal Acidification Monitoring in Long Island Sound

Understanding coastal acidification, as it varies from open ocean acidification, is crucial to identifying the unique problems occurring in coastal ecosystems such as Long Island Sound (LIS). The U.S. Geological Survey (USGS) is monitoring water quality parameters throughout LIS and its embayments to evaluate the status and trends of acidification processes in these waters. This project will...
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A National Predictive Model for PFAS Occurrence in Groundwater

In October of 2024, USGS Scientist’s published a study where they created a model to predict PFAS occurrence in groundwater at the depths of drinking water supplies. This model can help guide our partners to sample areas where PFAS in drinking water could be an issue for the public.
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