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Claire R Tiedeman

Claire Tiedeman is an Emeritus Research Hydrologist in the USGS Water Resources Mission Area, Earth System Processes Division, Water Cycle Branch.

Claire Tiedeman is an Emeritus Research Hydrologist in the USGS Water Resources Mission Area, Earth System Processes Division, Water Cycle Branch. She has used field methods and modeling tools to conduct research on groundwater flow and solute transport in a wide range of complex geologic settings, including basin-scale flow systems and site-scale fractured-rock aquifers. Her research also involves development and application of methods for assessing model uncertainty.

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USGS scientist with equipment used to inject fluids for a bioaugmentation experiment

Contaminant Fate and Transport Studies in Fractured Sedimentary Rock Aquifers at the former Naval Air Warfare Center (NAWC), West Trenton, N.J.

Contaminants associated with industrial, airport, and other activities are present in groundwater in fractured-rock aquifers, posing long-term hazards to drinking-water supplies and ecosystems. The heterogeneous character of fractured rock challenges our understanding, monitoring, and remediation of such sites.
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New Jersey Water Science Center, Pennsylvania Water Science Center
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Contaminant Fate and Transport Studies in Fractured Sedimentary Rock Aquifers at the former Naval Air Warfare Center (NAWC), West Trenton, N.J.

Contaminants associated with industrial, airport, and other activities are present in groundwater in fractured-rock aquifers, posing long-term hazards to drinking-water supplies and ecosystems. The heterogeneous character of fractured rock challenges our understanding, monitoring, and remediation of such sites.
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Photograph of road cut showing fractured sedimentary rocks

Contaminants in Complex Hydrogeologic Settings - NAWC 2018 Archive

Long-Term Field Research at former Naval Air Warfare Center (NAWC), West Trenton, New Jersey This is an Archive.
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New Jersey Water Science Center
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Contaminants in Complex Hydrogeologic Settings - NAWC 2018 Archive

Long-Term Field Research at former Naval Air Warfare Center (NAWC), West Trenton, New Jersey This is an Archive.
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MODFLOW-NWT and MODPATH6 models used to simulate contributing areas in hypothetical sedimentary rock aquifers under extreme recharge events

MODFLOW-NWT groundwater flow models and MODPATH6 particle tracking simulations were developed to determine contributing areas (CAs) for and advective travel times to domestic wells under extreme recharge events in a small hypothetical watershed underlain by dipping sedimentary rocks. The hypothetical models are based on hydrogeologic conditions in the Newark Basin, located in New Jersey, New York,
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Water Resources Mission Area

Streamflow data collected by the wading method, Pinnacles National Park, California, 2018

This dataset includes streamflow measurements collected at six sites in Pinnacles National Park during 2018. Data collection occurred at times when the streamflow did not include runoff from precipitation. The wading method was used to measure streamflow (Nolan, K.M. and Shields, R.R., 2000, Measurement of stream discharge by wading, U.S. Geological Survey Water-Resources Investigations Report 200
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Water Resources Mission Area

Passive Seismic Data Collected for the Horizontal-to-Vertical Spectral Ratio (HVSR) Method, Pinnacles National Park, California, 2018-2020

This dataset contains passive seismic data collected using a three-component seismometer during 2018-2020 at Pinnacles National Park, California. The data were acquired for the purpose of estimating depth to the bedrock surface underlying alluvial deposits, using the horizontal-to-vertical spectral ratio (HVSR) technique. Data were collected along ten transects, with 3 to 14 points collected along
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Water Resources Mission Area

MODFLOW-2005 and MODPATH models used to simulate hydraulic tomography pumping tests and identify a fracture network, former Naval Air Warfare Center, West Trenton, NJ

MODFLOW-2005 groundwater flow models were developed to simulate 47 pumping tests conducted for a hydraulic tomography experiment in fractured rocks underlying the former Naval Air Warfare Center, West Trenton, New Jersey. These flow models simulate the change in water level during the pumping tests, which range from about 45 to 60 minutes in duration. MODFLOW-2005 models were also developed to sim
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Water Resources Mission Area

Pumping Rate, Drawdown, and Atmospheric Pressure Data from Hydraulic Tomography Experiment at the Former Naval Air Warfare Center, West Trenton, NJ, 2015-2016

This data release presents pumping rate data, water-level drawdown and recovery data, and atmospheric pressure data collected during 48 pumping tests conducted in 2015 and 2016 for a hydraulic tomography field experiment in the mudstone aquifer underlying the former Naval Air Warfare Center (NAWC), West Trenton, NJ. The pumping rate data include rates measured by in-line flow meters and rates meas
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Water Resources Mission Area

Biogeochemical analyses of water samples collected in the mudstone aquifer underlying the Naval Air Warfare Center, West Trenton, NJ (2008-2013)

This data set presents results from the analyses of groundwater water samples collected from monitoring wells and monitoring intervals in bedrock wells in the mudstone aquifer underlying the former Naval Air Warfare Center (NAWC), West Trenton, NJ. The water samples were collected between 2008 and 2013 and were analyzed for field parameters, inorganic and organic constituents, and the abundances o
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Water Resources Mission Area

Groundwater tracing experiments conducted in the mudstone aquifer underlying the former Naval Air Warfare Center, West Trenton, NJ (2007-2008)

This data set presents results from two groundwater tracing experiments conducted in the mudstone aquifer underlying the former Naval Air Warfare Center (NAWC), West Trenton, NJ. In each test, a bromide solution was introduced into a hydraulically isolated section of borehole 36BR (denoted as 36BR-A); the hydraulically isolated section of the borehole isolated specific bedding plane parting fractu
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Water Resources Mission Area
Filter Total Items: 40

Microbial community response to a bioaugmentation test to degrade trichloroethylene in a fractured rock aquifer, Trenton, N.J

Bioaugmentation is a promising strategy for enhancing trichloroethylene (TCE) degradation in fractured rock. However, slow or incomplete biodegradation can lead to stalling at degradation byproducts such as 1,2-dichloroethene (cis-DCE) and vinyl chloride (VC). Over the course of 7 years, we examined the response of groundwater microbial populations in a bioaugmentation test where an emulsified veg
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Jennifer C. Underwood, Denise M. Akob, Michelle Lorah, Thomas E. Imbrigiotta, Ronald W. Harvey, Claire R. Tiedeman
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Water Resources Mission Area, Environmental Health Program, Geology, Energy & Minerals Science Center, Maryland-Delaware-D.C. Water Science Center, New Jersey Water Science Center, Reston Microbiology Laboratory

Aqueous geochemistry of waters and hydrogeology of alluvial deposits, Pinnacles National Park, California

A cooperative study between the National Park Service (NPS) and the U.S. Geological Survey (USGS) characterized groundwater quality and hydrogeology in parts of Pinnacles National Park. The water-quality investigation assessed the geochemistry of springs, wells, surface water, and precipitation and analyzed geochemistry of rock formations that affect the water chemistry through water-rock interact
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Kathleen Scheiderich, Claire R. Tiedeman, Paul A. Hsieh

Contributing areas to domestic wells in dipping sedimentary rocks under extreme recharge events

We use particle tracking to determine contributing areas (CAs) to wells for transient flow models that simulate cyclic domestic pumping and extreme recharge events in a small synthetic watershed underlain by dipping sedimentary rocks. The CAs consist of strike-oriented bands at locations where the water table intersects high-hydraulic conductivity beds, and from which groundwater flows to the pump
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Claire R. Tiedeman, Allen M. Shapiro
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Water Resources Mission Area

Nuclear magnetic resonanance logs of fractured bedrock at the Hidden Lane Landfill site, Culpeper Basin, Virginia

In May 2018, the U.S. Geological Survey (USGS) in cooperation with the U.S. Environmental Protection Agency (EPA) collected borehole nuclear magnetic resonance (bNMR) logs in three boreholes completed in sandstone and siltstone of the Balls Bluff Member of the Bull Run Formation at a Superfund Site in Culpeper Basin, Virginia. The bNMR logs were used to aid in the evaluation of the aquifer by meas
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Carole D. Johnson, Stephanie N. Phillips, Frederick D. Day-Lewis, Claire R. Tiedeman, Bruce Rundell, Edward Gilbert
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Water Resources Mission Area

Hydraulic tomography: 3D hydraulic conductivity, fracture network, and connectivity in mudstone

We present the first demonstration of hydraulic tomography (HT) to estimate the three-dimensional (3D) hydraulic conductivity (K) distribution of a fractured aquifer at high-resolution field scale (HRFS), including the fracture network and connectivity through it. We invert drawdown data collected from packer-isolated borehole intervals during 42 pumping tests in a wellfield at the former Naval Ai
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Claire R. Tiedeman, Warren Barrash
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Water Resources Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, National Innovation Center

The complex spatial distribution of trichloroethene and the probability of NAPL occurrence in the rock matrix of a mudstone aquifer

Methanol extractions for chloroethene analyses are conducted on rock samples from seven closely spaced coreholes in a mudstone aquifer that was subject to releases of the nonaqueous phase liquid (NAPL) form of trichloroethene (TCE) between the 1950's and 1990's. Although TCE concentration in the rock matrix over the length of coreholes is dictated by proximity to subhorizontal bedding planefractur
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Allen M. Shapiro, Daniel J. Goode, Thomas E. Imbrigiotta, Michelle M. Lorah, Claire R. Tiedeman
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Water Resources Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, Maryland-Delaware-D.C. Water Science Center, New Jersey Water Science Center, Pennsylvania Water Science Center

Hydraulic tomography: 3D hydraulic conductivity and fracture network connectivity in a contaminated mudstone aquifer

No abstract available.
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Warren Barrash, Claire R. Tiedeman, Colby Thrash, Jeremy Patterson, Carole D. Johnson
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Water Resources Mission Area, New Jersey Water Science Center

Bioremediation in fractured rock: 1. Modeling to inform design, monitoring, and expectations

Field characterization of a trichloroethene (TCE) source area in fractured mudstones produced a detailed understanding of the geology, contaminant distribution in fractures and the rock matrix, and hydraulic and transport properties. Groundwater flow and chemical transport modeling that synthesized the field characterization information proved critical for designing bioremediation of the source ar
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Claire R. Tiedeman, Allen M. Shapiro, Paul A. Hsieh, Thomas E. Imbrigiotta, Daniel J. Goode, Pierre Lacombe, Mary F. DeFlaun, Scott R. Drew, Carole D. Johnson, John H. Williams, Gary P. Curtis
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Water Resources Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, New Jersey Water Science Center, Pennsylvania Water Science Center

Bioremediation in fractured rock: 2. Mobilization of chloroethene compounds from the rock matrix

A mass balance is formulated to evaluate the mobilization of chlorinated ethene compounds (CE) from the rock matrix of a fractured mudstone aquifer under pre- and postbioremediation conditions. The analysis relies on a sparse number of monitoring locations and is constrained by a detailed description of the groundwater flow regime. Groundwater flow modeling developed under the site characterizatio
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Allen M. Shapiro, Claire R. Tiedeman, Thomas E. Imbrigiotta, Daniel J. Goode, Paul A. Hsieh, Pierre Lacombe, Mary F. DeFlaun, Scott R. Drew, Gary P. Curtis
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Water Resources Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, New Jersey Water Science Center, Pennsylvania Water Science Center

Imaging pathways in fractured rock using three-dimensional electrical resistivity tomography

Major challenges exist in delineating bedrock fracture zones because these cause abrupt changes in geological and hydrogeological properties over small distances. Borehole observations cannot sufficiently capture heterogeneity in these systems. Geophysical techniques offer the potential to image properties and processes in between boreholes. We used three-dimensional cross borehole electrical resi
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Judith Robinson, Lee Slater, Timothy B. Johnson, Allen M. Shapiro, Claire R. Tiedeman, Dimitrios Ntlargiannis, Carole D. Johnson, Frederick D. Day-Lewis, Pierre Lacombe, Thomas E. Imbrigiotta, John W. Lane
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Water Resources Mission Area, Ecosystems Mission Area, Toxic Substances Hydrology, Environmental Health Program, New Jersey Water Science Center

Effective groundwater model calibration: With analysis of data, sensitivities, predictions, and uncertainty

Methods and guidelines for developing and using mathematical modelsTurn to Effective Groundwater Model Calibration for a set of methods and guidelines that can help produce more accurate and transparent mathematical models. The models can represent groundwater flow and transport and other natural and engineered systems. Use this book and its extensive exercises to learn methods to fully exploit th
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Mary C. Hill, Claire R. Tiedeman
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Groundwater and Streamflow Information Program

UCODE_2014, with new capabilities to define parameters unique to predictions, calculate w eights using simulated values, estimate parameters w ith SVD, evaluate uncertainty with MCMC, and more

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Eileen P. Poeter, Mary C. Hill, Dan Lu, Claire R. Tiedeman, Steffen W. Mehl
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Water Resources Mission Area
Scientist writing on clipboard, with small seismometer on the ground and mountains in the background
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