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Contaminants in Groundwater near Superfund sites in Pennsylvania Active

By Pennsylvania Water Science Center August 23, 2023

USGS has investigated groundwater flow and contaminant transport in the vicinity of Superfund and other hazardous-waste sites in Pennsylvania, in cooperation with EPA. Additional cooperative support has been provided by the U.S. Department of Defense, National Park Service, Pennsylvania Department of Environmental Protection, Philadelphia, Bucks, Chester, and Montgomery Counties, and local government agencies.

Highlights

  • Many Superfund sites in southeastern Pennsylvania are underlain by Newark Basin fractured-sedimentary-rock aquifers, which historically have been used for industrial and drinking-water supply
  • Field testing characterized the highly heterogeneous and anisotropic strata showing the predominant role of dipping bed-oriented fractures in contaminant migration
  • Measured water levels in wells were used to construct water-level maps, and aquifer testing revealed high-permeability hydraulic connections between wells
  • Groundwater-flow models were developed based on synthesis of monitoring data and field-test results for selected sites
  • Simulations of transport paths were compared to observed contaminant distributions, and the simulated effect of changes in pumping on flow paths helped optimize pump and treat system operation
  • Areas contributing recharge to streams and discharging wells were mapped using the groundwater-flow models; as groundwater withdrawals in the area have decreased, a higher proportion of local recharge ultimately discharges to streams

 

USGS has also investigated groundwater contamination in sedimentary and carbonate aquifers near Philadelphia and in fractured-rock aquifers near former Navy bases in southeastern Pennsylvania in cooperation with the U.S. Navy, EPA, Pennsylvania Department of Environmental Protection, and others.

 

 

map of Pennsylvania with colored dots, shading, and county outlines
Sources/Usage: Public Domain. View Media Details
National Priority List (NPL) Superfund sites in Pennsylvania. Map identifies sites where USGS cooperative studies are ongoing or have been completed as of October, 2023. (USGS, site locations from catalog.data.gov/dataset/npl-superfund-site-boundaries-epa)

 

Below are other science projects associated with this project.

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Filter Total Items: 41

Interpretation of geophysical logs, aquifer tests, and water levels in wells in and near the North Penn Area 7 Superfund site, Upper Gwynedd Township, Montgomery County, Pennsylvania, 2000-02

Ground water in the vicinity of various industrial facilities in Upper Gwynedd Township and Lansdale Borough, Montgomery County, Pa., is contaminated with various volatile organic compounds (VOCs). The 2-square-mile area was placed on the National Priorities List as the North Penn Area 7 Superfund site by the U.S. Environmental Protection Agency (USEPA) in 1989. The U.S. Geological Survey (USGS) c
Authors
Lisa A. Senior, Peter J. Cinotto, Randall W. Conger, Philip H. Bird, Karl A. Pracht
By
Water Resources Mission Area, Pennsylvania Water Science Center

Altitude and configuration of the water-level surface in Mesozoic sedimentary rocks at and near the North Penn Area 7 Superfund Site, Upper Gwynedd Township, Montgomery County, Pennsylvania, December 4-6, 2000

No abstract available.
Authors
Lisa A. Senior, Allan J. Ruddy
By
Water Resources Mission Area, Pennsylvania Water Science Center

Description of borehole geophysical and geologist logs, Berks Sand Pit Superfund Site, Longswamp Township, Berks County, Pennsylvania

Between October 2002 and January 2003, geophysical logging was conducted in six boreholes at the Berks Sand Pit Superfund Site, Longswamp Township, Berks County, Pa., to determine (1) the waterproducing zones, water-receiving zones, zones of vertical borehole flow, orientation of fractures, and borehole and casing depth; and (2) the hydraulic interconnection between the six boreholes and the site
Authors
Dennis J. Low, Randall W. Conger
By
Water Resources Mission Area, Pennsylvania Water Science Center

Aquifer tests and simulation of ground-water flow in Triassic sedimentary rocks near Colmar, Bucks and Montgomery Counties, Pennsylvania

This report presents the results of a study by the U.S. Geological Survey in cooperation with the U.S. Environmental Protection Agency to evaluate ground-water flow in Triassic sedimentary rocks near Colmar, in Bucks and Montgomery Counties, Pa. The study was conducted to help the U.S. Environmental Protection Agency evaluate remediation alternatives at the North Penn Area 5 Superfund Site near Co
Authors
Dennis W. Risser, Philip H. Bird
By
Water Resources Mission Area, Pennsylvania Water Science Center

Case study for delineating a contributing area to a well in a fractured siliciclastic-bedrock aquifer near Lansdale, Pennsylvania

A supply well used by the North Penn Water Authority near Lansdale, Pa., was selected as a case study for delineating a contributing area in a fractured siliciclastic-bedrock aquifer. The study emphasized the importance of refining the understanding of factors that control ground-water movement to the well by conducting (1) geophysical logging and flow measurements, (2) ground-water level monitori
Authors
Gary J. Barton, Dennis W. Risser, Daniel G. Galeone, Daniel J. Goode
By
Water Resources Mission Area, Pennsylvania Water Science Center

Historical ground-water-flow patterns and trends in iron concentrations in the Potomac-Raritan-Magothy aquifer system in parts of Philadelphia, Pennsylvania, and Camden and Gloucester Counties, New Jersey

The Potomac-Raritan-Magothy (PRM) aquifer system is an important sole-source ground-water supply in Camden and Gloucester Counties, N.J. Elevated iron concentrations are a persistent water-quality problem associated with ground water from the PRM. In Philadelphia, the PRM no longer is usable as a water supply because of highly elevated concentrations of iron (as high as 429 mg/L [milligrams per li
Authors
Ronald A. Sloto
By
Water Resources Mission Area, New Jersey Water Science Center, Pennsylvania Water Science Center

Evaluation of borehole geophysical logging, aquifer-isolation tests, distribution of contaminants, and water-level measurements at the North Penn Area 5 Superfund Site, Bucks and Montgomery Counties, Pennsylvania

Borehole geophysical logging and aquifer-isolation (packer) tests were conducted at the North Penn Area 5 Superfund site in Bucks and Montgomery Counties, Pa. Caliper, naturalgamma, single-point-resistance, fluid-temperature, fluid-resistivity, heatpulse-flowmeter, and digital acoustic-televiewer logs and borehole television surveys were collected in 32 new and previously drilled wells that ranged
Authors
Philip H. Bird, Randall W. Conger
By
Water Resources Mission Area, Pennsylvania Water Science Center

Evaluation of borehole geophysical and video logs, at Butz Landfill Superfund Site, Jackson Township, Monroe County, Pennsylvania

Between February 1996 and November 2000, geophysical logging was conducted in 27 open borehole wells in and adjacent to the Butz Landfill Superfund Site, Jackson Township, Monroe County, Pa., to determine casing depth and depths of water-producing zones, water-receiving zones, and zones of vertical borehole flow. The wells range in depth from 57 to 319 feet below land surface. The geophysical logg
Authors
Dennis J. Low, Randall W. Conger
By
Water Resources Mission Area, Pennsylvania Water Science Center

Evaluation of borehole geophysical logs and hydraulic tests, phase III, at AIW Frank/Mid-County Mustang Superfund Site, Chester County, Pennsylvania

Borehole geophysical logs, heatpulse-flowmeter measurements, and aquifer-isolation tests were used to characterize the ground-water-flow system at the AIW Frank/Mid-County Mustang Superfund Site. The site is underlain by fractured carbonate rocks. Caliper, natural-gamma, single-point-resistance, fluid-resistivity, and fluid-temperature logs were run in six wells, and an acoustic borehole televiewe
Authors
Ronald A. Sloto
By
Water Resources Mission Area, Pennsylvania Water Science Center

Simulation of ground-water flow in the Potomac-Raritan-Magothy aquifer system near the Defense Supply Center Philadelphia, and the Point Breeze Refinery, southern Philadelphia County, Pennsylvania

Ground-water flow in the Potomac-Raritan- Magothy aquifer system (PRM) in south Philadelphia and adjacent southwestern New Jersey was simulated by use of a three-dimensional, seven-layer finite-difference numerical flow model. The simulation was run from 1900, which was prior to groundwater development, through 1995 with 21 stress periods. The focus of the modeling was on a smaller area of concern
Authors
Curtis L. Schreffler
By
Water Resources Mission Area, Pennsylvania Water Science Center

Simulation of aquifer tests and ground-water flowpaths at the local scale in fractured shales and sandstones of the Brunswick Group and Lockatong Formation, Lansdale, Montgomery County, Pennsylvania

The U.S. Geological Survey, as part of technical assistance to the U.S. Environmental Protection Agency, has constructed and calibrated models of local-scale ground-water flow in and near Lansdale, Pa., where numerous sources of industrial contamination have been consolidated into the North Penn Area 6 Superfund Site. The local-scale models incorporate hydrogeologic structure of northwest-dipping
Authors
Daniel J. Goode, Lisa A. Senior
By
Water Resources Mission Area, Pennsylvania Water Science Center

Evaluation of geophysical logs and slug tests, phase II, at AIW Frank/Mid-County Mustang Superfund Site, Chester County, Pennsylvania

Between September 1997 and October 1998, nine monitor wells were drilled at the AIW Frank/Mid-County Mustang Superfund Site in Chester County, Pa., to determine the horizontal and vertical distribution of contaminated ground water migrating from known contaminant sources. The U.S. Geological Survey conducted borehole geophysical logging and borehole television surveys in these boreholes to identif
Authors
R.W. Conger, D.J. Goode, R. A. Sloto
By
Water Resources Mission Area, Pennsylvania Water Science Center

U.S. Department of Defense (DOD)

U.S. Environmental Protection Agency (EPA)

U.S. Fish and Wildlife Service

U.S. National Park Service