Water Quality and Ecology
Water Quality and Ecology
PFAS chemicals detected in many rivers and streams across Pennsylvania
USGS-led study also analyzed potential contaminant sources
USGS-led study also analyzed potential contaminant sources
First-of-its-Kind Survey of PFAS in Pennsylvania Surface Waters
In collaboration with the Pennsylvania Department of Environmental Protection
In collaboration with the Pennsylvania Department of Environmental Protection
Pennsylvania and the Chesapeake Bay Watershed
USGS research efforts focus on emerging contaminants and stressors that affect human and aquatic life
USGS research efforts focus on emerging contaminants and stressors that affect human and aquatic life
Pennsylvania Surface Water-Quality Monitoring Network (WQN)
In cooperation with the Pennsylvania Department of Environmental Protection Bureau of Clean Water
In cooperation with the Pennsylvania Department of Environmental Protection Bureau of Clean Water
Round Goby in Pennsylvania Waters
Round gobies are now the dominant benthic fish in many of the tributary streams of Lake Erie
Round gobies are now the dominant benthic fish in many of the tributary streams of Lake Erie
Pennsylvania Groundwater Quality Monitoring Network
USGS, in cooperation with the Pennsylvania Department of Environmental Protection, monitors 28 wells throughout the Commonwealth
USGS, in cooperation with the Pennsylvania Department of Environmental Protection, monitors 28 wells throughout the Commonwealth
Water quality or ecology science for Pennsylvania, or conducted by center staff.
Filter Total Items: 32
Recoding of AMDTreat Phase 2: Integration of PHREEQ-N-AMDTreat water-quality prediction tools with recoded AMDTreat cost-analysis software
Newly developed PHREEQ-N-AMDTreat water-quality prediction tools indicate potential changes in pH, dissolved metals, and associated solute concentrations resulting from passive and active treatment of coal-mine drainage.
Harmful Algal Blooms in Pennsylvania
The U.S. Geological Survey is collaborating with State and local partners to develop models that provide real-time estimates of Escherichia coli (E. coli) (for pathogens) and (or) microcystin (for freshwater cyanotoxins) levels at Great Lakes beaches and drinking-water intakes.
Fractured-Rock Test Holes in Areas of Marcellus Shale Gas Development, Pennsylvania
USGS and Pennsylvania Geological Survey analyzed rock cuttings, geophysical logs, water quality, water-bearing zones, gas-isotope, and other data from deep test holes drilled in fractured bedrock in north-central Pennsylvania. The results of this study helped to quantify the depth and character of fresh and saline groundwater in areas of shale-gas exploration and development.
Pennsylvania Statewide Surface-Water Quality Monitoring Network - Per- and polyfluoroalkyl Substances Sampling Preparation
In partnership with Pennsylvania Department of Environmental Protection and Susquehanna River Basin Commission, rigorous and innovative PFAS sampling techniques were created for low-level detections.
Water Quality Monitoring - Pennsylvania
Water-Quality Monitoring
Evaluation of Radon in Groundwater and Indoor Air in Pennsylvania
Existing groundwater and indoor air radon-222, hereafter referred to as "radon", concentrations were aggregated and evaluated for 16 geologic units throughout the state of Pennsylvania to provide a better understanding of potential human exposure to radon.
Predictive Modeling of Bacteria Concentrations at Presque Isle State Park, Erie, Pennsylvania
Approximately 7 miles of Lake Erie shoreline lies within Presque Isle State Park in Erie, Pa. Monitored public bathing beaches at Presque Isle make up less than 1 mile. Concentrations of Escherichia coli (E. coli) at monitored beaches in Presque Isle State Park occasionally exceed the single-sample bathing-water standard of 235 colonies per 100 milliliters resulting in potentially unsafe swimming...
Bacteriological quality of groundwater used for household supply
In fractured bedrock aquifers used for domestic supply conditions can exist where contaminants such as bacteria are not filtered out by the soil. Once in the fracture system, little additional filtration takes place. The results of a synotic sampling of domestic wells in the Lower Susquehanna River basin, Pennsylvania and Maryland, showed that bacteria concentrations were higher in areas with high...