Project Summaries
|
| Title |
Description |
Contact |
Status |
Nitrate Source, Transport and Fate in Ground Water |
The primary objective of this project was to develop a thorough understanding of the hydrologic and chemical processes that affect the movement and fate of nitrogen within the shallow aquifers of the La Pine region. An additional objective was to develop a simulation model that could be used to evaluate the effects of existing and future development on water quality. Cooperator: Oregon Department of Environmental Quality |
David Morgan |
Completed |
Nitrogen loss in sand filter septic systems |
Nitrogen losses in sand filters were quantified, and processes
governing nitrogen losses in sand filters were identified in this project. Cooperator: Oregon Department of Environmental Quality |
Steve Hinkle |
Completed |
Organic wastewater compounds, pharmaceuticals, and coliphage in ground water receiving discharge from onsite wastewater treatment systems |
This project arose from a perceived need to better characterize the occurrence of organic wastewater compounds, pharmaceuticals, and naturally occurring viruses in onsite wastewater and in downgradient ground water. Although this study was primarily an occurrence survey, it included a ground-water-transect component to provide a basis for increased understanding of the transport of these analytes in relatively undisturbed, natural systems. Cooperator: Deschutes County Department of Community Development |
Steve Hinkle |
Completed |
Application of Simulation-Optimization Methods for Management of Nitrate Loading to Groundwater |
The objective of this project was to demonstrate the use of optimization techniques with a simulation model to support decision making for watershed-scale management of decentralized wastewater treatment. Cooperator: Deschutes County Department of Community Development |
David Morgan |
Completed |
Assessment of potential for discharge of septic tank nitrogen to rivers |
This project is yielding an evaluation the denitrification potential in
the near-river environment. The product will be an improved understanding of river vulnerability. Cooperator: Deschutes County Department of Community Development |
Steve Hinkle |
Completed |
Deschutes Basin Ground-Water Study |
The objective of this study was to provide a quantitative understanding of the ground-water hydrology in the Middle Deschutes Basin in order to provide resource managers, planners, and the general public the best information available with which to make decisions. Specifically, this information includes: a compilation of basic ground-water data, a description of the geologic framework of the regional flow system, a quantitative description of the flow system including estimation of the hydrologic budget, an evaluation of ground-water/surface water relationships, an analysis of the effects of present canal leakage, and development of the capability to estimate of the effects of present and future development on ground-water levels and streamflow. |
Marshall Gannett |
Completed |
U.S. Department of the Interior |
U.S. Geological Survey