David A Saad
David Saad is Chief of the Environmental Hydrodynamics Branch, Earth System Processes Division, USGS Water Resources Mission Area.
In the Environmental Hydrodynamics Branch, Dave oversees a diverse group of multi-disciplinary researchers and scientists who study the connections between surface and groundwater hydraulics and chemical and ecological fate and transport. This includes human and natural influences on the quality of surface and groundwater.
Dave has been with the USGS since 1987 where he has been a scientist (hydrologist), project manager, team leader, and supervisor in the Pennsylvania and Upper Midwest Water Science Centers and the Water Mission Area. In Pennsylvania, he worked on projects evaluating coal-mining reclamation methods and the effects on acid-mine drainage. In Wisconsin, Dave was the groundwater specialist and study unit chief of the Western Lake Michigan Drainages study unit of the USGS National Water Quality Assessment (NAWQA) program. He also worked on groundwater modeling projects for the Water Science Center. Dave also developed regional SPARROW (stream-water quality) models of the Midwest for NAWQA and binational SPARROW models of the Great Lakes Basin in collaboration with the International Joint Commission and the National Research Council Canada. In addition to being a branch chief with the Water Mission Area, Dave is currently project manager for “Quantifying Water Reuse and Return Flow Influences on Water Quality and Suitability”. This project is looking at the influences of return flow on water availability and is utilizing SPARROW models to achieve project goals.
Education and Certifications
B.S. in Geology, University of Wisconsin-Madison, 1987
Science and Products
Simulation of ground-water flow and rainfall runoff with emphasis on the effects of land cover, Whittlesey Creek, Bayfield County, Wisconsin, 1999-2001
Environmental water-quality zones for streams: A regional classification scheme
An alternative regionalization scheme for defining nutrient criteria for rivers and streams
Water-resources-related information for the St. Croix Reservation and vicinity, Wisconsin
Water-resources-related information for the Oneida Reservation and vicinity, Wisconsin
Optimization of ground-water withdrawal in the lower Fox River communities, Wisconsin
Water quality in the Western Lake Michigan Drainages, Wisconsin and Michigan, 1992-95
Flow and geochemistry along shallow ground-water flowpaths in an agricultural area in southeastern Wisconsin
Effects of land use and geohydrology on the quality of shallow ground water in two agricultural areas in the western Lake Michigan drainages, Wisconsin
Pesticides in ground water in the Western Lake Michigan Drainages, Wisconsin and Michigan, 1983-1995
Water-quality assessment of the western Lake Michigan drainages: Analysis of available information on nutrients and suspended sediment, water years 1971-90
Ground-water quality in the western part of the Cambrian-Ordovician aquifer in the Western Lake Michigan Drainages, Wisconsin and Michigan
Science and Products
- Science
- Data
- Publications
Filter Total Items: 52
Simulation of ground-water flow and rainfall runoff with emphasis on the effects of land cover, Whittlesey Creek, Bayfield County, Wisconsin, 1999-2001
The effects of land cover on flooding and base-flow characteristics of Whittlesey Creek, Bayfield County, Wis., were examined in a study that involved ground-water-flow and rainfall-runoff modeling. Field data were collected during 1999-2001 for synoptic base flow, streambed head and temperature, precipitation, continuous streamflow and stream stage, and other physical characteristics. Well logs pAuthorsBernard N. Lenz, David A. Saad, Faith A. FitzpatrickEnvironmental water-quality zones for streams: A regional classification scheme
Various approaches have been used to classify large geographical areas into smaller regions of similar water quality or extrapolate water-quality data from a few streams to other unmonitored streams. A combination of some of the strengths of existing techniques is used to develop a new approach for these purposes. In this new approach, referred to here as SPARTA (SPAtial Regression-Tree Analysis),AuthorsDale M. Robertson, D. A. SaadAn alternative regionalization scheme for defining nutrient criteria for rivers and streams
To protect and manage rivers and streams (hereafter, collectively referred to as streams) in the United States, the U.S. Environmental Protection Agency (USEPA) is establishing regionally based nutrient criteria that reflect the natural variability in water quality. As a basic approach to establish these criteria, the USEPA has divided the country into nutrient ecoregions (delineated on the basisAuthorsDale M. Robertson, David A. Saad, Ann M. WiebenWater-resources-related information for the St. Croix Reservation and vicinity, Wisconsin
The St. Croix Chippewa Tribe is interested in documenting water-quality conditions in lakes and streams adjacent to their Reservation lands in northwestern Wisconsin and developing management plans to protect these water resources. This report provides the Tribe with a retrospective summary and analysis of available water-resources-related information for their Reservation and vicinity. The studyAuthorsDavid A. Saad, Dale M. RobertsonWater-resources-related information for the Oneida Reservation and vicinity, Wisconsin
Water-resources information has been compiled from 82 studies in which data were collected from the Oneida Reservation and vicinity. Forty-seven studies addressed surface-water issues, 33 studies addressed ground-water issues, and 23 studies addressed aquatic-biology issues. Some multidisciplinary studies are included in more than one category. Most of the surface-water studies summarized in thisAuthorsDavid A. Saad, Morgan A. SchmidtOptimization of ground-water withdrawal in the lower Fox River communities, Wisconsin
Pumping from closely spaced wells in the Central Brown County area and the Fox Cities area near the north shore of Lake Winnebago has resulted in the formation of deep cones of depression in the vicinity of the two pumping centers. Water-level measurements indicate there has been a steady decline in water levels in the vicinity of these two pumping centers for the past 50 years. This report descriAuthorsJ.F. Walker, D. A. Saad, J. T. KrohelskiWater quality in the Western Lake Michigan Drainages, Wisconsin and Michigan, 1992-95
This report is intended to summarize major findings that emerged between 1992 and 1995 from the water-quality assessment of the Western Lake Michigan Drainages Study Unit and torelate these findings to water-quality issues of regional and national concern. The information in primarily intended for those who are involved in water-resource management. Yet, the information contained here may also intAuthorsCharles A. Peters, Dale M. Robertson, David A. Saad, Daniel J. Sullivan, Barbara C. Scudder, Faith A. Fitzpatrick, Kevin D. Richards, Jana S. Stewart, Sharon A. Fitzgerald, Bernard N. LenzFlow and geochemistry along shallow ground-water flowpaths in an agricultural area in southeastern Wisconsin
Water-quality and geohydrologic data were collected from 19 monitor wells and a stream in an agricultural area in southeastern Wisconsin. These sites were located along a 2,700-ft transect from a local ground-water high to the stream. The transect is approximately parallel to the horizontal direction of ground-water flow at the water table. Most of the wells were installed in unconsolidated deposiAuthorsD. A. Saad, D.C. ThorstensonEffects of land use and geohydrology on the quality of shallow ground water in two agricultural areas in the western Lake Michigan drainages, Wisconsin
Water-quality and geohydrologic data were collected between September 1993 and September 1994, from 56 wells and 2 springs, in two agricultural areas in the Western Lake Michigan Drainages study unit of the National-Water Quality Assessment Program. These data were used to study the effects of land use and geohydrology on shallow ground-water quality. Water samples from each well and spring were aAuthorsDavid A. SaadPesticides in ground water in the Western Lake Michigan Drainages, Wisconsin and Michigan, 1983-1995
In 1991, the U.S. Geological Survey (USGS) began implementation of the National Water-Quality Assessment (NAWQA) Program. The long-term goals of the NAWQA Program are to describe the status and trends in the quality of a large, representative part of the Nation's surface- and ground- water resources, and to identify, describe, and explain, if possible, the major factors that affect the observed waAuthorsAmy M. Matzen, David A. SaadWater-quality assessment of the western Lake Michigan drainages: Analysis of available information on nutrients and suspended sediment, water years 1971-90
In 1986, Congress appropriated funds for the U.S. Geological Survey (USGS) to develop the pilot phase of the National Water-Quality Assessment (NAWQA) Program. The long-term goals of this program are to (1) provide a nationally consistent description of current water-quality conditions for a large part of the Nation's water resources; (2) define. long-term trends (or lack of trends) in water qualiAuthorsDale M. Robertson, D. A. SaadGround-water quality in the western part of the Cambrian-Ordovician aquifer in the Western Lake Michigan Drainages, Wisconsin and Michigan
Ground-water samples were collected during the summer of 1995 from 29 wells in the western part of the Cambrian-Ordovician aquifer in the Western Lake Michigan Drainages study unit of the National-Water Quality Assessment Program. Analyses of ground-water samples from these wells were used to provide an indication of waterquality conditions in this heavily used part of the aquifer. Ground-water saAuthorsD. A. Saad - Web Tools
- Software
- News