Wendy Welch
Supervisory Hydrologist of the Groundwater Systems section of the Washington Water Science Center
Wendy is a Hydrologist and Supervisor of the Groundwater Section at the Washington Water Science Center. She has been with the USGS since 2007 and has experience developing regional hydrogeologic frameworks, investigating water use and availability, and performing geospatial analysis.
Professional Experience
Hydrologist, USGS Washington Water Science Center, 2007 - present
Education and Certifications
Bachelor of Science in Geology, University of Florida, 1995
Certificate in GIS and Spatial Modeling, University of Washington, 2007
Master of Geographic Information Systems, Penn State University, 2013
Science and Products
Filter Total Items: 18
Numerical model of the groundwater-flow system near the southeastern part of Puget Sound, Washington Numerical model of the groundwater-flow system near the southeastern part of Puget Sound, Washington
Groundwater flow in the active model area (AMA) was simulated using a groundwater-flow model. A steady-state model version of the model simulates equilibrium conditions, and a transient model version simulates monthly variability. The model corresponds to the physical and temporal dimensions of the conceptual model and groundwater budget. The steady-state model version represents average
Authors
Andrew J. Long, Elise E. Wright, Leland T. Fuhrig, Valerie A.L. Bright
Conceptual hydrogeologic framework and groundwater budget near the southeastern part of Puget Sound, Washington Conceptual hydrogeologic framework and groundwater budget near the southeastern part of Puget Sound, Washington
More than 1 million people live within the active model area (AMA) in the southeastern part of the lowlands surrounding Puget Sound, or Puget Lowland, Washington, and groundwater is the source for approximately one-half of their public, domestic, and irrigation water demands. The 887-square-mile AMA, located in King and Pierce Counties, represents the area of analysis for the conceptual
Authors
Wendy B. Welch, Valerie A.L. Bright, Andrew S. Gendaszek, Sarah B. Dunn, Alexander O. Headman, Elisabeth T. Fasser
Characterization of groundwater resources near the southeastern part of Puget Sound, Washington Characterization of groundwater resources near the southeastern part of Puget Sound, Washington
More than 1 million people live within the active model area (AMA) in the southeastern part of the lowlands surrounding Puget Sound, or Puget Lowland, Washington, and groundwater is the source for approximately one-half of their public, domestic, and irrigation water demands. The 887-square-mile AMA, located in King and Pierce Counties, represents the area of analysis for the conceptual
Variable-density groundwater flow and contaminant transport, Operable Unit 1, Naval Base Kitsap, Keyport, Washington Variable-density groundwater flow and contaminant transport, Operable Unit 1, Naval Base Kitsap, Keyport, Washington
Chlorinated volatile organic compounds (CVOCs) have migrated to groundwater beneath a former 9-acre landfill at Operable Unit 1 (OU-1) on Naval Base Kitsap, which was active from the 1930s through 1973 on the Keyport Peninsula, in Kitsap County, Washington. Biodegradation of CVOCs at OU-1 limits the mass of dissolved-phase CVOCs in groundwater that discharges to surface water, but...
Authors
Richard M. Yager, Wendy B. Welch, Alexander O. Headman, Richard S. Dinicola
Assessment of existing groundwater quality data in the Green-Duwamish watershed, Washington Assessment of existing groundwater quality data in the Green-Duwamish watershed, Washington
The United States Geological Survey (USGS) provided technical support to the Washington Department of Ecology (Ecology) in their assessment of the role groundwater plays in contributing pollutant loading to the Green-Duwamish River near Seattle, Washington. Ecology is developing watershed hydrology models of the Green-Duwamish watershed, and need to assign realistic contaminant...
Authors
Craig A. Senter, Kathleen E. Conn, Robert W. Black, Wendy B. Welch, Elisabeth T. Fasser
Water budget of the upper Chehalis River Basin, southwestern Washington Water budget of the upper Chehalis River Basin, southwestern Washington
Groundwater and surface water collectively supply the domestic, agricultural, and industrial needs of the 895-square mile upper Chehalis River Basin upstream of Grand Mound, Washington, while providing streamflow for fish and other aquatic species in the Chehalis River and its tributaries. To support sustainable water management decision-making, a water budget (including precipitation
Authors
Andrew S. Gendaszek, Wendy B. Welch
Filter Total Items: 21
Walla Walla River Basin groundwater-flow system, Oregon-Washington
The Issue: Decades of declining groundwater levels in the Walla Walla River Basin (WWRB), which spans Oregon and Washington, are affecting instream flows for threatened and culturally important fish populations and water availability for competing interests across state lines. The public and state resource management agencies have begun implementing efforts to stabilize groundwater levels and...
Southeast Sound Groundwater Flow Model
The Issue: Groundwater is an important resource for domestic, commercial, and industrial usage in the Puyallup River and Chambers-Clover Creek Watersheds, and groundwater discharge helps maintain late-summer and early-fall streamflow (baseflow) in many area streams. Consequently, as the population grows, and commercial and industrial activity increase, so does the demand for groundwater. However...
Chambers-Clover Model
The Issue: In 1998, to address diminishing water availability and quality and the loss of critical habitat for fish and wildlife, Washington State enacted the Watershed Management Act. Under this Act, in the process of watershed planning for the Chambers-Clover Creek Watershed in Pierce County, Planning Unit members and partners uncovered gaps in data that would limit the usefulness of their plan...
Characterization and Numerical Simulation of the Puyallup River Watershed
Groundwater is an important resource for domestic, commercial, and industrial usage in the Puyallup River Watershed, and groundwater discharge helps maintain late-summer and early-fall streamflow (baseflow) in many area streams. Consequently, as the population grows, and commercial and industrial activity increase, so does the demand for groundwater. However, the quantity of usable groundwater...
Uranium in Groundwater
The Issue: Groundwater monitoring in northeastern Washington State has shown elevated levels of naturally occurring uranium in several community water systems and in private wells. A better understanding of the occurrence of uranium in groundwater along with outreach products that communicate the risk to area residents are important in order to reduce uranium exposure, protect from the toxic...
Spokane Valley - Rathdrum Prairie
The Spokane Valley/Rathdrum Prairie aquifer, which extends across Idaho and Washington, is the sole source of drinking water for more than 450,000 people. Recently submitted water-rights requests would substantially increase withdrawals from the aquifer. The public and state resource management agencies need an improved understanding of the SVRP hydrologic system in order to ensure appropriate...
Spatial Data in Support of the Characterization of Water Resources near the Southeastern Part of Puget Sound, Washington Spatial Data in Support of the Characterization of Water Resources near the Southeastern Part of Puget Sound, Washington
The data within this data release presents information used to characterize the groundwater-flow system and the development of a groundwater-flow model in the active model area. Conceptual and numerical models of groundwater flow were developed by the U.S. Geological Survey Washington Water Science Center, in close cooperation with 18 water-resource agencies and stakeholders, to assess...
Soil Water Balance Model of Upper Chehalis River Basin, Southwestern Washington Soil Water Balance Model of Upper Chehalis River Basin, Southwestern Washington
A Soil Water Balance model for the Upper Chehalis River basin in southwestern Washington.
Bathymetric Data in the Green River near Tukwila, Washington Bathymetric Data in the Green River near Tukwila, Washington
The U.S. Army Corps of Engineers scheduled repair on parts of an 850-ft long levee located along the Green River near S. 180th St. and Highway 181 downstream of Kent, WA. There is a Muckleshoot Indian Tribe Usual and Accustomed treaty area fishing site immediately downstream from the proposed bank work area and the Tribe is concerned that the levee rehabilitation project may cause...
Uranium concentrations in groundwater, northeastern Washington Uranium concentrations in groundwater, northeastern Washington
A study of uranium in groundwater in northeastern Washington was conducted to make a preliminary assessment of naturally occurring uranium in groundwater relying on existing information and limited reconnaissance sampling. Naturally occurring uranium is associated with granitic and metasedimentary rocks, as well as younger sedimentary deposits, that occur in this region. The occurrence...
Naturally Occurring Uranium in Groundwater in Northeastern Washington State Naturally Occurring Uranium in Groundwater in Northeastern Washington State
Uranium is a radioactive element (radionuclide) that occurs naturally in rock, soil, and water – usually in low concentrations. Radionuclides are unstable atoms with excess energy and as radionuclides decay, they emit radiation. The uranium decay sequence also includes other radionuclides of concern such as radium and radon ( DeSimone and others, 2014).
Washington State Groundwater Projects Washington State Groundwater Projects
This application includes information about ongoing or completed groundwater studies in Washington. Included are studies from coastal areas, the densely populated Puget Sound, central and eastern Washington, and cross-boundary areas shared with Canada, Oregon, and Idaho.
Science and Products
Filter Total Items: 18
Numerical model of the groundwater-flow system near the southeastern part of Puget Sound, Washington Numerical model of the groundwater-flow system near the southeastern part of Puget Sound, Washington
Groundwater flow in the active model area (AMA) was simulated using a groundwater-flow model. A steady-state model version of the model simulates equilibrium conditions, and a transient model version simulates monthly variability. The model corresponds to the physical and temporal dimensions of the conceptual model and groundwater budget. The steady-state model version represents average
Authors
Andrew J. Long, Elise E. Wright, Leland T. Fuhrig, Valerie A.L. Bright
Conceptual hydrogeologic framework and groundwater budget near the southeastern part of Puget Sound, Washington Conceptual hydrogeologic framework and groundwater budget near the southeastern part of Puget Sound, Washington
More than 1 million people live within the active model area (AMA) in the southeastern part of the lowlands surrounding Puget Sound, or Puget Lowland, Washington, and groundwater is the source for approximately one-half of their public, domestic, and irrigation water demands. The 887-square-mile AMA, located in King and Pierce Counties, represents the area of analysis for the conceptual
Authors
Wendy B. Welch, Valerie A.L. Bright, Andrew S. Gendaszek, Sarah B. Dunn, Alexander O. Headman, Elisabeth T. Fasser
Characterization of groundwater resources near the southeastern part of Puget Sound, Washington Characterization of groundwater resources near the southeastern part of Puget Sound, Washington
More than 1 million people live within the active model area (AMA) in the southeastern part of the lowlands surrounding Puget Sound, or Puget Lowland, Washington, and groundwater is the source for approximately one-half of their public, domestic, and irrigation water demands. The 887-square-mile AMA, located in King and Pierce Counties, represents the area of analysis for the conceptual
Variable-density groundwater flow and contaminant transport, Operable Unit 1, Naval Base Kitsap, Keyport, Washington Variable-density groundwater flow and contaminant transport, Operable Unit 1, Naval Base Kitsap, Keyport, Washington
Chlorinated volatile organic compounds (CVOCs) have migrated to groundwater beneath a former 9-acre landfill at Operable Unit 1 (OU-1) on Naval Base Kitsap, which was active from the 1930s through 1973 on the Keyport Peninsula, in Kitsap County, Washington. Biodegradation of CVOCs at OU-1 limits the mass of dissolved-phase CVOCs in groundwater that discharges to surface water, but...
Authors
Richard M. Yager, Wendy B. Welch, Alexander O. Headman, Richard S. Dinicola
Assessment of existing groundwater quality data in the Green-Duwamish watershed, Washington Assessment of existing groundwater quality data in the Green-Duwamish watershed, Washington
The United States Geological Survey (USGS) provided technical support to the Washington Department of Ecology (Ecology) in their assessment of the role groundwater plays in contributing pollutant loading to the Green-Duwamish River near Seattle, Washington. Ecology is developing watershed hydrology models of the Green-Duwamish watershed, and need to assign realistic contaminant...
Authors
Craig A. Senter, Kathleen E. Conn, Robert W. Black, Wendy B. Welch, Elisabeth T. Fasser
Water budget of the upper Chehalis River Basin, southwestern Washington Water budget of the upper Chehalis River Basin, southwestern Washington
Groundwater and surface water collectively supply the domestic, agricultural, and industrial needs of the 895-square mile upper Chehalis River Basin upstream of Grand Mound, Washington, while providing streamflow for fish and other aquatic species in the Chehalis River and its tributaries. To support sustainable water management decision-making, a water budget (including precipitation
Authors
Andrew S. Gendaszek, Wendy B. Welch
Filter Total Items: 21
Walla Walla River Basin groundwater-flow system, Oregon-Washington
The Issue: Decades of declining groundwater levels in the Walla Walla River Basin (WWRB), which spans Oregon and Washington, are affecting instream flows for threatened and culturally important fish populations and water availability for competing interests across state lines. The public and state resource management agencies have begun implementing efforts to stabilize groundwater levels and...
Southeast Sound Groundwater Flow Model
The Issue: Groundwater is an important resource for domestic, commercial, and industrial usage in the Puyallup River and Chambers-Clover Creek Watersheds, and groundwater discharge helps maintain late-summer and early-fall streamflow (baseflow) in many area streams. Consequently, as the population grows, and commercial and industrial activity increase, so does the demand for groundwater. However...
Chambers-Clover Model
The Issue: In 1998, to address diminishing water availability and quality and the loss of critical habitat for fish and wildlife, Washington State enacted the Watershed Management Act. Under this Act, in the process of watershed planning for the Chambers-Clover Creek Watershed in Pierce County, Planning Unit members and partners uncovered gaps in data that would limit the usefulness of their plan...
Characterization and Numerical Simulation of the Puyallup River Watershed
Groundwater is an important resource for domestic, commercial, and industrial usage in the Puyallup River Watershed, and groundwater discharge helps maintain late-summer and early-fall streamflow (baseflow) in many area streams. Consequently, as the population grows, and commercial and industrial activity increase, so does the demand for groundwater. However, the quantity of usable groundwater...
Uranium in Groundwater
The Issue: Groundwater monitoring in northeastern Washington State has shown elevated levels of naturally occurring uranium in several community water systems and in private wells. A better understanding of the occurrence of uranium in groundwater along with outreach products that communicate the risk to area residents are important in order to reduce uranium exposure, protect from the toxic...
Spokane Valley - Rathdrum Prairie
The Spokane Valley/Rathdrum Prairie aquifer, which extends across Idaho and Washington, is the sole source of drinking water for more than 450,000 people. Recently submitted water-rights requests would substantially increase withdrawals from the aquifer. The public and state resource management agencies need an improved understanding of the SVRP hydrologic system in order to ensure appropriate...
Spatial Data in Support of the Characterization of Water Resources near the Southeastern Part of Puget Sound, Washington Spatial Data in Support of the Characterization of Water Resources near the Southeastern Part of Puget Sound, Washington
The data within this data release presents information used to characterize the groundwater-flow system and the development of a groundwater-flow model in the active model area. Conceptual and numerical models of groundwater flow were developed by the U.S. Geological Survey Washington Water Science Center, in close cooperation with 18 water-resource agencies and stakeholders, to assess...
Soil Water Balance Model of Upper Chehalis River Basin, Southwestern Washington Soil Water Balance Model of Upper Chehalis River Basin, Southwestern Washington
A Soil Water Balance model for the Upper Chehalis River basin in southwestern Washington.
Bathymetric Data in the Green River near Tukwila, Washington Bathymetric Data in the Green River near Tukwila, Washington
The U.S. Army Corps of Engineers scheduled repair on parts of an 850-ft long levee located along the Green River near S. 180th St. and Highway 181 downstream of Kent, WA. There is a Muckleshoot Indian Tribe Usual and Accustomed treaty area fishing site immediately downstream from the proposed bank work area and the Tribe is concerned that the levee rehabilitation project may cause...
Uranium concentrations in groundwater, northeastern Washington Uranium concentrations in groundwater, northeastern Washington
A study of uranium in groundwater in northeastern Washington was conducted to make a preliminary assessment of naturally occurring uranium in groundwater relying on existing information and limited reconnaissance sampling. Naturally occurring uranium is associated with granitic and metasedimentary rocks, as well as younger sedimentary deposits, that occur in this region. The occurrence...
Naturally Occurring Uranium in Groundwater in Northeastern Washington State Naturally Occurring Uranium in Groundwater in Northeastern Washington State
Uranium is a radioactive element (radionuclide) that occurs naturally in rock, soil, and water – usually in low concentrations. Radionuclides are unstable atoms with excess energy and as radionuclides decay, they emit radiation. The uranium decay sequence also includes other radionuclides of concern such as radium and radon ( DeSimone and others, 2014).
Washington State Groundwater Projects Washington State Groundwater Projects
This application includes information about ongoing or completed groundwater studies in Washington. Included are studies from coastal areas, the densely populated Puget Sound, central and eastern Washington, and cross-boundary areas shared with Canada, Oregon, and Idaho.