Steven R Corsi
Steven Corsi is a Research Hydrologist (Chemistry) with the Upper Midwest Water Science Center.
AREAS OF EXPERTISE
- Impact of aircraft and pavement deicers on aquatic ecosystems
- Evaluation of the effectiveness of airport deicer management systems
- Assessment of anthropogenic impact on stream water quality
- Aquatic toxicity evaluation
- Recreational water quality
- Surface water investigations of waterborne pathogens
Education and Certifications
M.S. in Civil and Environmental Engineering, University of Wisconsin, 1989
B.S. in Physics, University of Wisconsin-Eau Claire, 1986
Affiliations and Memberships*
State of Wisconsin Licensed Professional Hydrologist
Society of Toxicology and Chemistry
Science and Products
Characterizing response of total suspended solids and total phosphorus loading to weather and watershed characteristics for rainfall and snowmelt events in agricultural watersheds
Virtual Beach 3: user's guide
Developing and implementing the use of predictive models for estimating water quality at Great Lakes beaches
Predictive models have been used at beaches to improve the timeliness and accuracy of recreational water-quality assessments over the most common current approach to water-quality monitoring, which relies on culturing fecal-indicator bacteria such as Escherichia coli (E. coli.). Beach-specific predictive models use environmental and water-quality variables that are easily and quickly measured as s
Organic waste compounds in streams: Occurrence and aquatic toxicity in different stream compartments, flow regimes, and land uses in southeast Wisconsin, 2006–9
Partial least squares for efficient models of fecal indicator bacteria on Great Lakes beaches
Effects of best-management practices in Bower Creek in the East River priority watershed, Wisconsin, 1991-2009
Evaluation of potential sources and transport mechanisms of fecal indicator bacteria to beach water, Murphy Park Beach, Door County, Wisconsin
Oxygen demand of aircraft and airfield pavement deicers and alternative freezing point depressants
Linking biomarkers to reproductive success of caged fathead minnows in streams with increasing urbanization
Water- and sediment-quality effects on Pimephales promelas spawning vary along an agriculture-to-urban land-use gradient
Characterization of suspended solids and total phosphorus loadings from small watersheds in Wisconsin
A fresh look at road salt: Aquatic toxicity and water-quality impacts on local, regional, and national scales
Science and Products
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Filter Total Items: 68
Characterizing response of total suspended solids and total phosphorus loading to weather and watershed characteristics for rainfall and snowmelt events in agricultural watersheds
Understanding the response of total suspended solids (TSS) and total phosphorus (TP) to influential weather and watershed variables is critical in the development of sediment and nutrient reduction plans. In this study, rainfall and snowmelt event loadings of TSS and TP were analyzed for eight agricultural watersheds in Wisconsin, with areas ranging from 14 to 110 km2 and having four to twelve yeaAuthorsMari E. Danz, Steven Corsi, Wesley R. Brooks, Roger T. BannermanVirtual Beach 3: user's guide
Virtual Beach version 3 (VB3) is a decision support tool that constructs site-specific statistical models to predict fecal indicator bacteria (FIB) concentrations at recreational beaches. VB3 is primarily designed for beach managers responsible for making decisions regarding beach closures or the issuance of swimming advisories due to pathogen contamination. However, researchers, scientists, engAuthorsMike Cyterski, Wesley Brooks, Mike Galvin, Kurt Wolfe, Rebecca Carvin, Tonia Roddick, Mike Fienen, Steve CorsiDeveloping and implementing the use of predictive models for estimating water quality at Great Lakes beaches
Predictive models have been used at beaches to improve the timeliness and accuracy of recreational water-quality assessments over the most common current approach to water-quality monitoring, which relies on culturing fecal-indicator bacteria such as Escherichia coli (E. coli.). Beach-specific predictive models use environmental and water-quality variables that are easily and quickly measured as s
AuthorsDonna S. Francy, Amie M. G. Brady, Rebecca B. Carvin, Steven R. Corsi, Lori M. Fuller, John H. Harrison, Brett A. Hayhurst, Jeremiah Lant, Meredith B. Nevers, Paul J. Terrio, Tammy M. ZimmermanOrganic waste compounds in streams: Occurrence and aquatic toxicity in different stream compartments, flow regimes, and land uses in southeast Wisconsin, 2006–9
An assessment of organic chemicals and aquatic toxicity in streams located near Milwaukee, Wisconsin, indicated high potential for adverse impacts on aquatic organisms that could be related to organic waste compounds (OWCs). OWCs used in agriculture, industry, and households make their way into surface waters through runoff, leaking septic-conveyance systems, regulated and unregulated discharges,AuthorsAustin K. Baldwin, Steven R. Corsi, Kevin D. Richards, Steven W. Geis, Christopher MagruderPartial least squares for efficient models of fecal indicator bacteria on Great Lakes beaches
At public beaches, it is now common to mitigate the impact of water-borne pathogens by posting a swimmer's advisory when the concentration of fecal indicator bacteria (FIB) exceeds an action threshold. Since culturing the bacteria delays public notification when dangerous conditions exist, regression models are sometimes used to predict the FIB concentration based on readily-available environmentaAuthorsWesley R. Brooks, Michael N. Fienen, Steven R. CorsiEffects of best-management practices in Bower Creek in the East River priority watershed, Wisconsin, 1991-2009
Hydrologic and water-quality data were collected at Bower Creek during the periods before best-management practices (BMPs), and after BMPs were installed for evaluation of water-quality improvements. The monitoring was done between 1990 and 2009 with the pre-BMP period ending in July 1994 and the post-BMP period beginning in October 2006. BMPs installed in this basin included streambank protectionAuthorsSteven R. Corsi, Judy A. Horwatich, Troy D. Rutter, Roger T. BannermanEvaluation of potential sources and transport mechanisms of fecal indicator bacteria to beach water, Murphy Park Beach, Door County, Wisconsin
Fecal Indicator Bacteria (FIB) concentrations in beach water have been used for many years as a criterion for closing beaches due to potential health concerns. Yet, current understanding of sources and transport mechanisms that drive FIB occurrence remains insufficient for accurate prediction of closures at many beaches. Murphy Park Beach, a relatively pristine beach on Green Bay in Door County, WAuthorsPaul F. Juckem, Steven R. Corsi, Colleen McDermott, Gregory Kleinheinz, Lisa R. Fogarty, Sheridan K. Haack, Heather E. JohnsonOxygen demand of aircraft and airfield pavement deicers and alternative freezing point depressants
Aircraft and pavement deicing formulations and other potential freezing point depressants were tested for biochemical oxygen demand (BOD) and chemical oxygen demand (COD). Propylene glycol-based aircraft deicers exhibited greater BOD5 than ethylene glycol-based aircraft deicers, and ethylene glycol-based products had lower degradation rates than propylene glycol-based products. Sodium formate paveAuthorsSteven R. Corsi, Dean Mericas, George BowmanLinking biomarkers to reproductive success of caged fathead minnows in streams with increasing urbanization
Reproductive and oxidative stress biomarkers have been recommended as tools to assess the health of aquatic organisms. Though validated in the laboratory, there are few studies that tie a change in gene expression to adverse reproductive or population outcomes in the field. This paper looked at 17 streams with varying degrees of urbanization to assess the use of biomarkers associated with reproducAuthorsJ. Crago, Steven R. Corsi, D. Weber, R. Bannerman, R. KlaperWater- and sediment-quality effects on Pimephales promelas spawning vary along an agriculture-to-urban land-use gradient
Many streams in the U.S. are “impaired” due to anthropogenic influence. For watershed managers to achieve practical understanding of these impairments, a multitude of factors must be considered, including point and nonpoint-source influence on water quality. A spawning assay was developed in this study to evaluate water- and sediment-quality effects that influenced Pimephales promelas (fathead minAuthorsS.R. Corsi, R.D. Klaper, D.N. Weber, R.T. BannermanCharacterization of suspended solids and total phosphorus loadings from small watersheds in Wisconsin
Knowledge of the daily, monthly, and yearly distribution of contaminant loadings and streamflow can be critical for the successful implementation and evaluation of water-quality management practices. Loading data for solids (suspended sediment and total suspended solids) and total phosphorus and streamflow data for 23 watersheds were summarized for four ecoregions of Wisconsin: the Driftless AreaAuthorsMari E. Danz, Steven R. Corsi, David J. Graczyk, Roger T. BannermanA fresh look at road salt: Aquatic toxicity and water-quality impacts on local, regional, and national scales
A new perspective on the severity of aquatic toxicity impact of road salt was gained by a focused research effort directed at winter runoff periods. Dramatic impacts were observed on local, regional, and national scales. Locally, samples from 7 of 13 Milwaukee, Wisconsin area streams exhibited toxicity in Ceriodaphnia dubia and Pimephales promelas bioassays during road-salt runoff. Another MilwaukAuthorsS.R. Corsi, D. J. Graczyk, S.W. Geis, N.L. Booth, K.D. Richards - Software
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*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government