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Roland W Tollett

Roland Wayne Tollett played his way through college, from playing baseball in the fields throughout the deep south to mapping in the fields of Colorado and Wyoming. Roland played baseball at Chipola Jr. College in Marianna, Florida (1988-1990) and Louisiana Tech University (1990-1992). In spite of this, he received his Bachelor of Science degree in geology from Louisiana Tech University in Augus

Roland received a master’s degree in Geology and Geophysics from Louisiana State University in 1998.  While at LSU, Roland studied under the guidance Prof. Ray E. Ferrell, Jr., a widely respected clay mineralogist.  Roland completed a variety of college and USGS courses related to water-quality and hydrology.  Though he prefers field work like many of his colleagues, Roland has contributed to numerous report publications, including proceeding abstracts, Data Series Reports, OFRs, WRIRs, SIRs, Fact Sheets, and a Circular.  Roland is a contributing author for program letters and quarterly reports for the Fort Polk Military Project (1996-present).  Roland is a member of the ACAD NAWQA Study Unit (1997-present).  Roland currently is assisting with the Fort Polk Project, co-authoring a NAWQA regional summary report for the Mississippi Embayment-Texas Coastal Uplands Principal Aquifer, and working as a team member in the Ruston Program Office, LA, for the deployment of pressure transducers to document hurricane storm surge.  Roland has given over 10 professional presentations to a variety of audiences, such as a Sustainability Conference at the Fort Polk Military Reservation, LA, the USGS DODEC conference in Gulfport, MS, and the NGWA (National Ground Water Association) conference in San Antonio, TX (April 2005).

Science and Products

Filter Total Items: 18

Aquatic-life criteria compared to concentrations of cadmium, copper, lead, and zinc in streams near Fort Polk Military Reservation, Louisiana, December 2015–August 2016

The primary focus of this study was to document cadmium, copper, lead, and zinc concentrations in selected streams near the U.S. Army Joint Readiness Training Center (JRTC) and Fort Polk Military Reservation and to compare those values to Federal and State aquatic-life criteria guidelines. The acute aquatic-life criteria used for this study are as follows: the U.S. Environmental Protection Agency
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Lower Mississippi-Gulf Water Science Center

Methane and benzene in drinking-water wells overlying the Eagle Ford, Fayetteville, and Haynesville Shale hydrocarbon production areas

Water wells (n = 116) overlying the Eagle Ford, Fayetteville, and Haynesville Shale hydrocarbon production areas were sampled for chemical, isotopic, and groundwater-age tracers to investigate the occurrence and sources of selected hydrocarbons in groundwater. Methane isotopes and hydrocarbon gas compositions indicate most of the methane in the wells was biogenic and produced by the CO2 reduction
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Water Resources, California Water Science Center, Colorado Water Science Center

The quality of our Nation's waters: water quality in the Mississippi embayment-Texas coastal uplands aquifer system and Mississippi River Valley alluvial aquifer, south-central United States, 1994-2008

About 8 million people rely on groundwater from the Mississippi embayment—Texas coastal uplands aquifer system for drinking water. The Mississippi River Valley alluvial aquifer also provides drinking water for domestic use in rural areas but is of primary importance to the region as a source of water for irrigation. Irrigation withdrawals from this aquifer are among the largest in the Nation and p
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Water Resources

Processes affecting geochemistry and contaminant movement in the middle Claiborne aquifer of the Mississippi embayment aquifer system

Groundwater chemistry and tracer-based age data were used to assess contaminant movement and geochemical processes in the middle Claiborne aquifer (MCA) of the Mississippi embayment aquifer system. Water samples were collected from 30 drinking-water wells (mostly domestic and public supply) and analyzed for nutrients, major ions, pesticides, volatile organic compounds (VOCs), and transient age tra
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Water Resources, Caribbean-Florida Water Science Center (CFWSC)

Quality of Shallow Groundwater and Drinking Water in the Mississippi Embayment-Texas Coastal Uplands Aquifer System and the Mississippi River Valley Alluvial Aquifer, South-Central United States, 1994-2004

The Mississippi embayment-Texas coastal uplands aquifer system is an important source of drinking water, providing about 724 million gallons per day to about 8.9 million people in Texas, Louisiana, Mississippi, Arkansas, Missouri, Tennessee, Kentucky, Illinois, and Alabama. The Mississippi River Valley alluvial aquifer ranks third in the Nation for total withdrawals of which more than 98 percent i
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Water Resources

Monitoring Inland Storm Surge and Flooding From Hurricane Gustav in Louisiana, September 2008

On August 29-31, 2008, the U.S. Geological Survey (USGS) deployed a mobile monitoring network consisting of 124 pressure transducers (sensors) (figs. 1, 2) at 80 sites over an area of about 4,200 square miles to record the timing, extent, and magnitude of inland hurricane storm surge and coastal flooding generated by Hurricane Gustav, which made landfall in southeastern Louisiana on September 1. O
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Water Resources, Lower Mississippi-Gulf Water Science Center

Effects of Hardened Low-Water Crossings on Periphyton and Water Quality in Selected Streams at the Fort Polk Military Reservation, Louisiana, 1998-99 and 2003-04

In 2003, the U.S. Geological Survey (USGS), at the request of the U.S. Army Joint Readiness Training Center and Fort Polk, began a follow-up study to determine whether installation and modification of hardened low-water crossings had short-term (less than 1 year) or long-term (greater than 1 year) effects on periphyton or water quality in five streams at the Fort Polk Military Reservation, Louisia
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Water Resources, Lower Mississippi-Gulf Water Science Center

Monitoring Inland Storm Surge and Flooding from Hurricane Rita

Pressure transducers (sensors) and high-water marks were used to document the inland water levels related to storm surge generated by Hurricane Rita in southwestern Louisiana and southeastern Texas. On September 22-23, 2005, an experimental monitoring network of sensors was deployed at 33 sites over an area of about 4,000 square miles to record the timing, extent, and magnitude of inland hurricane

Physicochemical properties and chemical characteristics of water, bed sediment, and mussel tissue from selected streams near the Redleg and Peason Ridge impact areas, Fort Polk Military Reservation, Louisiana, June 2001 - November 2003

At the request of the U.S. Army Joint Readiness Training Center and Fort Polk, the U.S. Geological Survey collected and analyzed water, bed-sediment, and mussel-tissue samples from selected streams near the Redleg impact area (RIA) and Peason Ridge impact areas (PRIA) at the Fort Polk Military Reservation (Reservation), Louisiana. from June 2001 through November 2003. Samples were collected from 1

Monitoring Hurricane Rita Inland Storm Surge

Pressure transducers (sensors) are accurate, reliable, and cost-effective tools to measure and record the magnitude, extent, and timing of hurricane storm surge. Sensors record storm-surge peaks more accurately and reliably than do high-water marks. Data collected by sensors may be used in storm-surge models to estimate when, where, and to what degree stormsurge flooding will occur during future s
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Ecosystems, Wetland and Aquatic Research Center

Hurricane Rita surge data, southwestern Louisiana and southeastern Texas, September to November 2005

Pressure transducers and high-water marks were used to document the inland water levels related to storm surge generated by Hurricane Rita in southwestern Louisiana and southeastern Texas. On September 22-23, 2005, an experimental monitoring network consisting of 47 pressure transducers (sensors) was deployed at 33 sites over an area of about 4,000 square miles to record the timing, extent, and ma
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Water Resources, Lower Mississippi-Gulf Water Science Center

Explosive compounds detected in tissue of freshwater mussels from selected streams near or on the Fort Polk Military Reservation, Louisiana, May and June 2002

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USGS science for a changing world

Louisiana Public Awareness, Hydrologic Studies, and Hydrologic Data

Louisiana Public Awareness, Hydrologic Studies, and Hydrologic Data
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Water Resources, Lower Mississippi-Gulf Water Science Center
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Louisiana Public Awareness, Hydrologic Studies, and Hydrologic Data

Louisiana Public Awareness, Hydrologic Studies, and Hydrologic Data
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Datasets used to map the potentiometric surface, Mississippi River Valley alluvial aquifer, spring 2020

A potentiometric-surface map for spring 2020 was created for the Mississippi River Valley alluvial aquifer (MRVA), which was referenced to the North American Vertical Datum of 1988 (NAVD 88), using most of the available groundwater-altitude data from wells and surface-water-altitude data from streamgages. The location and water-level altitude in feet for these wells and streamgages in spring 2020
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Lower Mississippi-Gulf Water Science Center

Water-quality and grain-size data collected at three sites near the Peason Ridge training area and two sites near the Main Post at the Joint Readiness Training Center and Fort Polk, 2015-2016

In 2015-2016, physicochemical properties and chemical characteristics of stream water, bed sediment, groundwater, and soil were determined in watersheds located outside of, but in proximity to, the Peason Ridge Training Area and Main Post at the Joint Readiness Training Center and Fort Polk boundaries to document background trace element concentrations. Water samples were analyzed for physicochemi
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Lower Mississippi-Gulf Water Science Center

Datasets used to map the potentiometric surface, Mississippi River Valley alluvial aquifer, spring 2018

A potentiometric-surface map for spring 2018 was created for the Mississippi River Valley alluvial (MRVA) aquifer, which was referenced to the North American Vertical Datum of 1988 (NAVD 88), using most of the available groundwater-altitude data from wells and surface-water-altitude data from streamgages. Most of the wells were measured annually or one time, after installation, but some wells were
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Lower Mississippi-Gulf Water Science Center

Map of Study Area and Phytoplankton Taxonomy in Three North Louisiana Reservoirs: Cross Lake, Bayou D'Arbonne Lake, and Poverty Point Reservoir, June 2009-February 2011

This data release includes GIS shapefiles and metadata for location of the study area and phytoplankton taxonomy counts determined by Dr. Russel Rhodes, Faculty Emeritus, Department of Biology, Missouri State University, in three north Louisiana reservoirs: Cross Lake, Bayou D'Arbonne Lake, and Poverty Point Reservoir, June 2009-February 2011.
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Lower Mississippi-Gulf Water Science Center

Altitude of the potentiometric surface in the Mississippi River Valley alluvial aquifer, spring 2020

The purpose of this report is to present a potentiometric-surface map for the Mississippi River Valley alluvial aquifer (MRVA). The source data for the map were groundwater-altitude data from wells measured manually or continuously generally in spring 2020 and from the altitude of the top of the water surface measured generally on April 9, 2020, in rivers in the area.
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Water Resources, Nebraska Water Science Center

Altitude of the potentiometric surface in the Mississippi River Valley alluvial aquifer, spring 2018

A potentiometric-surface map for spring 2018 was created for the Mississippi River Valley alluvial (MRVA) aquifer using available groundwater-altitude data from 1,126 wells completed in the MRVA aquifer and from the altitude of the top of the water surface in area rivers from 66 streamgages. Personnel from Arkansas Natural Resources Commission, Arkansas Department of Health, Arkansas Geological Su
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Water Resources, Nebraska Water Science Center
Image: Public Wells
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Science and Products