Rodney J Richards
Science and Products
Cross-Section Geometry and Sediment-Size Data from Muddy Creek and North Fork Gunnison River below Paonia Reservoir, western Colorado, 2019
This dataset contains cross-section geometry and sediment-size data collected in the fall of 2019 from Muddy Creek and North Fork Gunnison River below Paonia Reservoir, western Colorado. Six cross sections were surveyed using Real-Time Kinematic Global Navigation Satellite System (RTK-GNSS) methods to document channel geometry below Paonia Reservoir. One cross section was surveyed on Muddy...
Concentration of inorganic chemical elements associated with suspended sediment at Muddy Creek below Paonia Reservoir, Gunnison County, Colorado, U.S. Geological Survey site number 385626107212000
Dataset includes the analysis results of 49 inorganic chemical elements bound to suspended-sediment particles below Paonia Reservoir during a sediment release in September 2017. Suspended-sediment samples were collected at U.S. Geological Survey (USGS) station number 385626107212000 by following data collection procedures and protocols in Edwards and Glysson (1999). The samples were freez
Model Archive Summary for Suspended-Sediment Concentration at U.S. Geological Survey Site 09132095; Anthracite Creek above Mouth near Somerset, Colorado
This model archive summary documents the suspended-sediment concentration (SSC) model developed to estimate 15-minute SSC at Anthracite Creek above Mouth near Somerset, U.S. Geological Survey (USGS) site number 09132095. The methods used follow USGS guidance as referenced in relevant Office of Surface Water Technical Memorandum (TM) 2016.07 and Office of Water Quality TM 2016.10,
Model Archive Summary for Suspended-Sediment Concentration at U.S. Geological Survey Site 385553107243301; North Fork Gunnison below Raven Gulch near Somerset, Colorado
This model archive summary documents the suspended-sediment concentration (SSC) model developed to estimate 15-minute SSC at North Fork Gunnison River below Raven Gulch, U.S. Geological Survey (USGS) site number 385553107243301. The methods used follow USGS guidance as referenced in relevant Office of Surface Water/Office of Water Quality Technical Memoranda and USGS Techniques and M
Model Archive Summary for Suspended-Sediment Concentration at U.S. Geological Survey Site 385903107210800; Muddy Creek above Paonia Reservoir, Colorado
This model archive summary documents the suspended-sediment concentration (SSC) model developed to estimate 15-minute SSC at Muddy Creek above Paonia Reservoir, U.S. Geological Survey (USGS) site number 385903107210800. The methods used follow USGS guidance as referenced in relevant Office of Surface Water Technical Memorandum (TM) 2016.07 and Office of Water Quality TM 2016.10,
Assessment of diel cycling in nutrients and trace elements in the Eagle River Basin, 2017–18
Diel cycles are known to occur in all types of waters, and increasing studies indicate routine water samples may not provide an accurate snapshot in concentrations of trace elements and nutrients. Diel behavior in neutral to alkaline pH ranges is independent of streamflow variability and concentration. Extensive historical U.S. Geological Survey (...
Richards, Rodney J.; Henneberg, Mark F.
Streamflow and selenium loads during synoptic sampling of the Gunnison River and its tributaries near Delta, Colorado, November 2015
In response to the need for more information about selenium (Se) sources and transport, the U.S. Geological Survey, in cooperation with the Colorado Water Conservation Board, completed a study that characterized Se loads in a reach of the Gunnison River between Delta and Grand Junction, Colo. This report identifies where possible dissolved Se...
Stevens, Michael R.; Leib, Kenneth J.; Thomas, Judith C.; Bauch, Nancy J.; Richards, Rodney J.
Hydraulic, geomorphic, and trout habitat conditions of the Lake Fork of the Gunnison River in Hinsdale County, Lake City, Colorado, Water Years 2010-2011
Channel rehabilitation, or reconfiguration, to mitigate a variety of riverine problems has become a common practice in the western United States. However, additional work to monitor and assess the channel response to, and the effectiveness of, these modifications over longer periods of time (decadal or longer) is still needed. The Lake Fork of the...
Williams, Cory A.; Richards, Rodney J.; Schaffrath, Keelin R.
Suspended-sediment transport and storage: A demonstration of acoustic methods in the evaluation of reservoir management strategies for a small water-supply reservoir in western Colorado
The U.S. Bureau of Reclamation (USBR) and local stakeholder groups are evaluating reservoir-management strategies within Paonia Reservoir. This small reservoir fills to capacity each spring and requires approximately half of the snowmelt-runoff volume from its sediment-laden source waters, Muddy Creek. The U.S. Geological Survey is currently...
Williams, Cory A.; Richards, Rodney J.; Collins, Kent L.
Characterization of streamflow, salinity, and selenium loading and land-use change in Montrose Arroyo, western Colorado, from 1992 to 2013
Salinity and dissolved selenium are known water-quality impairments in the lower Gunnison River watershed of western Colorado. Salinity is a concern because of its adverse effects on agricultural land and equipment, and on municipal and industrial users. The Montrose Arroyo watershed in Montrose, Colorado, contains agricultural and residential...
Richards, Rodney J.; Moore, Jennifer L.
Characterization of salinity loads and selenium loads in the Smith Fork Creek region of the Lower Gunnison River Basin, western Colorado, 2008-2009
The lower Gunnison River Basin of the Colorado River Basin has elevated salinity and selenium levels. The Colorado River Basin Salinity Control Act of June 24, 1974 (Public Law 93–320, amended by Public Law 98–569), authorized investigation of the Lower Gunnison Basin Unit Salinity Control Project by the U.S. Department of the Interior. The Bureau...
Richards, Rodney J.; Linard, Joshua I.; Hobza, Christopher M.
Application of sediment characteristics and transport conditions to resource management in selected main-stem reaches of the Upper Colorado River, Colorado and Utah, 1965-2007
The Colorado River Basin provides habitat for 14 native fish, including 4 endangered species protected under the Federal Endangered Species Act of 1973. These endangered fish species once thrived in the Colorado River system, but water-resource development, including the building of numerous diversion dams and several large reservoirs, and the...
Williams, Cory A.; Schaffrath, Keelin R.; Elliott, John G.; Richards, Rodney J.
Assessment of surface-water quantity and quality, Eagle River watershed, Colorado, 1947-2007
From the early mining days to the current tourism-based economy, the Eagle River watershed (ERW) in central Colorado has undergone a sequence of land-use changes that has affected the hydrology, habitat, and water quality of the area. In 2000, the USGS, in cooperation with the Colorado River Water Conservation District, Eagle County, Eagle River...
Williams, Cory A.; Moore, Jennifer L.; Richards, Rodney J.
Characterization of hydrology and salinity in the Dolores project area, McElmo Creek Region, southwest Colorado, 1978-2006
Increasing salinity loading in the Colorado River has become a major concern for agricultural and municipal water supplies. The Colorado Salinity Control Act was implemented in 1974 to protect and enhance the quality of water in the Colorado River Basin. The U.S. Geological Survey, in cooperation with the Bureau of Reclamation and the Colorado...
Richards, Rodney J.; Leib, Kenneth J.