John R Mullaney
John Mullaney is a Hydrologist in the New England Water Science Center.
John serves as the Center Groundwater Specialist. He began working for the USGS in 1986, and has worked on a wide variety of groundwater and water-quality studies in Connecticut and other parts of New England.
Current projects include:
- National surveillance of the status of groundwater levels in the United States
- Evaluation of the effects of bottled water extraction in the Saco River Basin, New Hampshire and Maine
- Evaluation of nitrogen loads to Long Island Sound from the major tributaries
- Analysis of tidal groundwater levels in the vicinity of the Herring River, Lower Cape Cod, as part of a proposed tidal marsh restoration at the Cape Cod National Seashore
- Development of tools using R computing environment for review of water-quality and groundwater-level data
- Development of web pages using the R computing environment for display of USGS data
Highlights of past work:
- Analysis of long-term nutrient trends and loads to Long Island Sound and Narragansett Bay
- Analysis of water quality in Connecticut in the four decades since the Clean Water Act
- Modeling nitrogen loads from groundwater to streams and Long Island Sound
- Use of surrogate methods to determine total nitrogen concentrations in the lower Connecticut River from sensor data
- Analysis of the effects of road deicing on groundwater and surface water quality
- Investigation of the effects of sea-level rise on groundwater levels in New Haven, Connecticut
- Modeling groundwater flow and water use from a crystalline bedrock aquifer, southwestern Connecticut
- Assessment of the hydrogeology and water-quality of a large Superfund site in southwestern Connecticut
- Studies of groundwater and surface water quality with the USGS National Water Quality Assessment Program (NAWQA)
- Mapping the geohydrology of the Upper Connecticut and Androscoggin Basins, northern New Hampshire
- Statewide assessment of pesticides in groundwater in Connecticut
Professional Experience
Hydrologist, Groundwater Specialist, U.S. Geological Survey, New England Water Science Center, 2017 to Present
Acting Groundwater Specialist, California Water Science Center, 2020 to 2021
Hydrologist, Lead Scientist, Groundwater Specialist, U.S. Geological Survey, Connecticut Office, 2014 to 2017
Supervisory Hydrologist, Chief of the Hydrologic Studies Section, U.S. Geological Survey, Connecticut Water Science Center, 2007 to 2013
Hydrologist, U.S. Geological Survey, Connecticut Water Science Center, 1992 to 2007
Hydrologist, U.S. Geological Survey, New Hampshire-Vermont Office, 1991
Hydrologist, U.S. Geological Survey, Connecticut Office, New England District, 1989 to 1991
Hydrologic Technician, U.S. Geological Survey, Connecticut Office, New England District, 1986 to 1989
Education and Certifications
B.S. Geology, University of Connecticut, 1986
Affiliations and Memberships*
Connecticut Interagency Drought Workgroup, Technical Assistance
Long Island Sound Study, Science and Technical Advisory Committee
Abstracts and Presentations
Panel Discussion: dataRetrieval: Success Stories and Future Enhancements, National Water Quality Monitoring Conference, April 2021
Is Greenwich facing a water shortage? One Air, Water, and Land a New Environmental Lecture Series Hosted by Cos Cob Library, Greenwich CT, Panelist, March, 2021
Nitrogen Loading Analysis of Tributaries to Long Island Sound, Restore America's Estuaries Summit, 2020, virtual meeting
Groundwater and surface water, a single resource in New England, Water, New England’s next Big Challenge, Southeastern Massachusetts Watershed Action Alliance, March 29, 2019
Science and Products
Metals, organic compounds, and nutrients in Long Island Sound: sources, magnitudes, trends, and impacts
Estimated nitrogen loads from selected tributaries in Connecticut draining to Long Island Sound, 1999–2009
Nutrient concentrations and loads and Escherichia coli densities in tributaries of the Niantic River estuary, southeastern Connecticut, 2005 and 2008–2011
Nutrient concentrations and loads in the northeastern United States - Status and trends, 1975-2003
Preliminary investigation of the effects of sea-level rise on groundwater levels in New Haven, Connecticut
Preliminary assessment of chloride concentrations, loads, and yields in selected watersheds along the Interstate 95 corridor, southeastern Connecticut, 2008-09
Chloride in Groundwater and Surface Water in Areas Underlain by the Glacial Aquifer System, Northern United States
Nutrient Loads and Ground-Water Residence Times in an Agricultural Basin in North-Central Connecticut
Summary of water quality trends in the Connecticut River, 1968-1998
Water use, ground-water recharge and availability, and quality of water in the Greenwich area, Fairfield County, Connecticut and Westchester County, New York, 2000-2002
Estimation of nitrogen yields and loads from basins draining to Long Island Sound, 1988–98
Delineation and Analysis of Uncertainty of Contributing Areas to Wells at the Southbury Training School, Southbury, Connecticut
Science and Products
Metals, organic compounds, and nutrients in Long Island Sound: sources, magnitudes, trends, and impacts
Estimated nitrogen loads from selected tributaries in Connecticut draining to Long Island Sound, 1999–2009
Nutrient concentrations and loads and Escherichia coli densities in tributaries of the Niantic River estuary, southeastern Connecticut, 2005 and 2008–2011
Nutrient concentrations and loads in the northeastern United States - Status and trends, 1975-2003
Preliminary investigation of the effects of sea-level rise on groundwater levels in New Haven, Connecticut
Preliminary assessment of chloride concentrations, loads, and yields in selected watersheds along the Interstate 95 corridor, southeastern Connecticut, 2008-09
Chloride in Groundwater and Surface Water in Areas Underlain by the Glacial Aquifer System, Northern United States
Nutrient Loads and Ground-Water Residence Times in an Agricultural Basin in North-Central Connecticut
Summary of water quality trends in the Connecticut River, 1968-1998
Water use, ground-water recharge and availability, and quality of water in the Greenwich area, Fairfield County, Connecticut and Westchester County, New York, 2000-2002
Estimation of nitrogen yields and loads from basins draining to Long Island Sound, 1988–98
Delineation and Analysis of Uncertainty of Contributing Areas to Wells at the Southbury Training School, Southbury, Connecticut
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government