Simulation of water-management scenarios for the Mississippi Delta
Connor J. Haugh, Courtney D. Killian, Jeannie R. B. Barlow
2020, Scientific Investigations Report 2019-5116
To compare the effectiveness of proposed alternative water-supply scenarios on future water availability in the Mississippi Delta, the U.S. Geological Survey and the Mississippi Department of Environmental Quality are collaborating on the update and enhancement of an existing regional groundwater-flow model of the area. Through this collaboration, the model has...
Numerical simulation of groundwater availability in central Moloka‘i, Hawai‘i
Delwyn S. Oki, John A. Engott, Kolja Rotzoll
2020, Scientific Investigations Report 2019-5150
Since the 1990s, increased chloride concentrations of water pumped from wells (much of which is used for drinking water) and the effects of withdrawals on groundwater-dependent ecosystems have led to concerns over groundwater availability on the island of Molokaʻi, Hawaiʻi. An improved understanding of the hydrologic effects of proposed groundwater...
Using advanced population genomics to better understand the relationship between offshore and spawning habitat use for Atlantic Sturgeon
David C. Kazyak, Aaron Aunins, Robin L. Johnson, Barbara A. Lubinski, Michael S. Eackles, Tim L. King
2020, OCS Study 2020-062
Atlantic Sturgeon (Acipenser oxyrinchus oxyrinchus) are a large-bodied anadromous fish that historically supported important fisheries along the east coast of the United States. Following years of overharvest and habitat degradation, populations experienced severe declines. In 2012, the National Marine Fisheries Service listed Atlantic Sturgeon under the Endangered Species Act (ESA;...
Development of regression equations for the estimation of flood flows at ungaged streams in Pennsylvania
Mark A. Roland, Marla H. Stuckey
2019, Scientific Investigations Report 2019-5094
Regression equations, which may be used to estimate flood flows at select annual exceedance probabilities, were developed for ungaged streams in Pennsylvania. The equations were developed using annual peak flow data through water year 2015 and basin characteristics for 285 streamflow gaging stations across Pennsylvania and surrounding states. The streamgages...
Groundwater flow model for Western Chippewa County–Including analysis of water resources related to industrial sand mining and irrigated agriculture
Michael Parsen, Paul F. Juckem, Madeline Gotkowitz, Michael N. Fienen
2019, Wisconsin Geological and NaturalHistory Survey Bulletin B112
A groundwater flow model for western Chippewa County, Wisconsin, was developed by the Wisconsin Geological and Natural History Survey (WGNHS) and the U.S. Geological Survey (USGS) using the computer program MODFLOW. The model is the result of a five-year groundwater study commissioned by Chippewa County in 2012 to evaluate the...
Spatially referenced models of streamflow and nitrogen, phosphorus, and suspended-sediment loads in the southeastern United States
Anne B. Hoos, Victor L. Roland II
2019, Scientific Investigations Report 2019-5135
Spatially Referenced Regression On Watershed attributes (SPARROW) models were applied to describe and estimate mean-annual streamflow and transport of total nitrogen (TN), total phosphorus (TP), and suspended sediment (SS) in streams and delivered to coastal waters of the southeastern United States on the basis of inputs and management practices centered...
Spatially referenced models of streamflow and nitrogen, phosphorus, and suspended-sediment loads in streams of the midwestern United States
Dale M. Robertson, David A. Saad
2019, Scientific Investigations Report 2019-5114
In this report, SPAtially Referenced Regression On Watershed attributes (SPARROW) models developed to describe long-term (2000–14) mean-annual streamflow, total nitrogen (TN), total phosphorus (TP), and suspended-sediment (SS) transport in streams of the Midwestern part of the United States (the Mississippi River, Great Lakes, and Red River of the North Basins)...
Methods for estimating regional skewness of annual peak flows in parts of the Great Lakes and Ohio River Basins, based on data through water year 2013
Andrea G. Veilleux, Daniel M. Wagner
2019, Scientific Investigations Report 2019-5105
Bulletin 17C (B17C) recommends fitting the log-Pearson Type III (LP−III) distribution to a series of annual peak flows at a streamgage by using the method of moments. The third moment, the skewness coefficient (or skew), is important because the magnitudes of annual exceedance probability (AEP) flows estimated by using the...
Groundwater recharge estimates for Maine using a Soil-Water-Balance model—25-year average, range, and uncertainty, 1991 to 2015
Martha G. Nielsen, Stephen M. Westenbroek
2019, Scientific Investigations Report 2019-5125
To address the lack of information on the spatial and temporal variability of recharge to groundwater systems in Maine, a study was initiated in cooperation with the Maine Geological Survey to use the U.S. Geological Survey Soil-Water-Balance model to evaluate annual average potential recharge across the State over a 25-year...
Hydrogeologic framework of the Treasure Valley and surrounding area, Idaho and Oregon
James R. Bartolino
2019, Scientific Investigations Report 2019-5138
Most of the population of the Treasure Valley and the surrounding area of southwestern Idaho and easternmost Oregon depends on groundwater for domestic supply, either from domestic or municipal-supply wells. As of 2017, 41 percent of Idaho’s population was concentrated in Idaho’s portion of the Treasure Valley, and current and...
Identifying characteristics of actionable science for drought planning and adaptation: Final report to the North Central Climate Adaptation Science Center
Adam Wilke, Amanda E. Cravens
2019, Report
Changing climate conditions can make water management planning and drought preparedness decisions more complicated than ever before. Resource managers can no longer rely solely on historical data and trends to base their actions, and are in need of science that is relevant to their specific needs and can directly inform...
Atlantic Salmon (Salmo salar) climate scenario planning pilot report
Diane Borggaard, Dori Dick, Jonathan Star, Mike Alexander, M. Bernier, Matt Collins, Kelly Damon-Randall, Robert W. Dudley, Roger Roger Griffis, Sean Hayes, Mike Johnson, Dan Kircheis, John Kocik, Benjamin Letcher, Nate Mantua, Wendy Morrison, Keith Nislow, Vince Saba, R. Saunders, Tim Sheehan, Michelle D. Staudinger
2019, Greater Atlantic Region Pollicy Series 19-05
Scenario planning is a structured process that embraces uncertainty and explores plausible alternative future conditions under different assumptions to help manage risk and prioritize actions ( Schwartz 1996, Peterson et al. 2003). It has been used by a variety of organizations to explore and help prepare...
Streambed scour evaluations and conditions at selected bridge sites in Alaska, 2016–17
Robin A. Beebee, Karenth L. Dworsky, Schyler J. Knopp
2019, Scientific Investigations Report 2019-5110
Stream stability, flood frequency, and streambed scour potential were evaluated at 20 Alaskan river- and stream-spanning bridges lacking a quantitative scour analysis or having unknown foundation details. Three of the bridges had been assessed shortly before the study described in this report but were re-assessed using different methods or data....
DNA fingerprinting of Southern Mule Deer (Odocoileus hemionus fuliginatus) in North San Diego County, California (2018-19)
Anna Mitelberg, Julia G. Smith, Amy G. Vandergast
2019, Open-File Report 2019-1138
Throughout the western United States, efforts are underway to better understand and preserve migration and movement corridors for mule deer and other big game and to minimize the impacts of development and other land-use change on populations. San Diego County is home to a unique non-migratory subspecies of mule deer,...
Flow modification in the Nation’s streams and rivers
Daren Carlisle, David M. Wolock, Christopher P. Konrad, Gregory J. McCabe, Ken Eng, Theodore E. Grantham, Barbara Mahler
2019, Circular 1461
This report summarizes a national assessment of flowing waters conducted by the U.S. Geological Survey’s (USGS) National Water-Quality Assessment (NAWQA) Project and addresses several pressing questions about the modification of natural flows in streams and rivers. The assessment is based on the integration, modeling, and synthesis of monitoring data collected by...
Methods for estimating the magnitude and frequency of peak streamflows for unregulated streams in Oklahoma developed by using streamflow data through 2017
Jason M. Lewis, Shelby L. Hunter, L.G. Labriola
2019, Scientific Investigations Report 2019-5143
The U.S. Geological Survey (USGS), in cooperation with the Oklahoma Department of Transportation, updated peak-streamflow regression equations for estimating flows with annual exceedance probabilities from 50 to 0.2 percent for the State of Oklahoma. These regression equations incorporate basin characteristics to estimate peak-streamflow magnitude and frequency throughout the State by...
User's guide for the national hydrography dataset plus (NHDPlus) high resolution
Richard B. Moore, Lucinda D. McKay, Alan H. Rea, Timothy R. Bondelid, Curtis V. Price, Thomas G. Dewald, Craig M. Johnston
2019, Open-File Report 2019-1096
The National Hydrography Dataset Plus High Resolution (NHDPlus HR) is a scalable geospatial hydrography framework built from the High Resolution (1:24,000-scale or better) National Hydrography Dataset (NHD), nationally complete Watershed Boundary Dataset (WBD), and ⅓-arc-second (10-meter ground spacing) 3D Elevation Program (3DEP) digital elevation model (DEM) data. The NHDPlus HR...
Depth to bedrock based on modeling of gravity data of the eastern part of Edwards Air Force Base, California
Victoria Langenheim, Andrew Morita, Allen H. Christensen, Geoffrey Cromwell, Christopher P. Ely
2019, Open-File Report 2019-1128
We describe a gravity survey acquired to determine the thickness of basin-fill deposits (depth to bedrock) and to delineate geologic structures that might influence groundwater flow beneath the eastern part of Edwards Air Force Base, California. Inversion of these gravity data combined with geologic map and well information provides an...
Trends in streamflow and concentrations and flux of nutrients and total suspended solids in the Upper White River at Muncie, near Nora, and near Centerton, Indiana
G. F. Koltun
2019, Scientific Investigations Report 2019-5119
The U.S. Geological Survey (USGS), in cooperation with The Nature Conservancy, completed a study to estimate and assess trends in streamflow and annual mean concentrations and flux of nutrients (nitrate plus nitrite, total Kjeldahl nitrogen, and total phosphorus) and total suspended solids at three USGS streamgages (hereafter referred to as “study...
Slug-test analysis of selected wells at an earthen dam site in southern Westchester County, New York
Michael L. Noll, Anthony Chu, William D. Capurso
2019, Open-File Report 2019-1102
In 2005, the U.S. Geological Survey began a cooperative study with the New York City Department of Environmental Protection to characterize the local groundwater-flow system and identify potential sources of seeps on the southern embankment of the Hillview Reservoir in southern Westchester County, New York. The earthen embankment comprises low-permeability...
Hydrogeologic framework of the Virginia Eastern Shore
E. Randolph McFarland, Todd A. Beach
2019, Scientific Investigations Report 2019-5093
The Yorktown-Eastover aquifer system of the Virginia Eastern Shore consists of upper, middle, and lower confined aquifers overlain by correspondingly named confining units and underlain by the Saint Marys confining unit. Miocene- to Pliocene-age marine-shelf sediments observed in 205 boreholes include medium- to coarse-grained sand and shells that compose the...
Geologic map of the Blythe 7.5' quadrangle, La Paz County, Arizona and Riverside County, California
Debra Block, Brian F. Gootee, Kyle House, Philip A Pearthree
2019, Arizona Geological Survey Digital Geologic Map DGM-124
The geologic map of the Blythe 7.5' quadrangle spans about 60 percent of the width of the Holocene floodplain and valley floor of the lower Colorado River and the adjacent lower piedmont on the east side of the Colorado River Valley. This map depicts a composite geologic record of the...
Report of the River Master of the Delaware River for the period December 1, 2009–November 30, 2010
Kendra L. Russell, Darwin Ockerman, Bruce E. Krejmas, Gary N. Paulachok, Robert R. Mason, Jr.
2019, Open-File Report 2019-1093
A Decree of the Supreme Court of the United States, entered June 7, 1954, established the position of Delaware River Master within the U.S. Geological Survey. In addition, the Decree authorizes diversion of water from the Delaware River Basin and requires compensating releases from certain reservoirs, owned by New York...
Pecos River Basin salinity assessment, Santa Rosa Lake, New Mexico, to the confluence of the Pecos River and the Rio Grande, Texas, 2015
Natalie A. Houston, Jonathan V. Thomas, Patricia B. Ging, Andrew P. Teeple, Diana E. Pedraza, David S. Wallace
2019, Scientific Investigations Report 2019-5071
The elevated salinity of the Pecos River throughout much of its length is of paramount concern to water users and water managers. Dissolved-solids concentrations in the Pecos River exceed 3,000 milligrams per liter in many of its reaches in the study area, from Santa Rosa Lake, New Mexico, to the...
Potentiometric surface of groundwater-level altitudes near the planned Highway 270 bypass, east of Hot Springs, Arkansas, July–August 2017
Anna M. Nottmeier, Phillip D. Hays
2019, Scientific Investigations Map 3444
The Ouachita Mountains aquifer system potentiometric-surface map is one component of the Hot Springs Bypass Groundwater Monitoring Project. The potentiometric-surface map provides a baseline assessment of shallow groundwater levels and flow directions before the construction of the Arkansas Department of Transportation planned extension of the Highway 270 bypass, east of...
