| dc.contributor.author | Super, Joseph James | |
| dc.description.abstract | The Souris River, a slow moving praire river, originates in the Canadian
province of Saskatchewan. The Souris River enters into the United States near
Sherwood, North Dakota. The upper portion of the Souris River, from the border with
Saskatchewan, Canada to Lake Darling, a total of 43 .4 miles, has been on the North
Dakota Section 303(d) Environmental Protection Agency (EPA) list of impaired waters
since 1998 (NDDoH, 2008).
Low dissolved oxygen (DO) concentration in the river has been problematic,
resulting in fish kills on the upper reach of the Souris River. The primary goal of the
project is to determine source(s) of contaminations that cause seasonal variation in
dissolved oxygen concentration. Objectives ofthis research include: 1) studying the
nature and extent of the impairment using existing data, 2) executing a comprehensive
year long sampling plan, and 3) analyzing sample data to identify the major sources of
DO impairment. Results from this study will be used by North Dakota State
Department of Health (DoH) for development of a Total Maximum Daily Load
(TMDL) report to the EPA.
The reach was expanded into Canada, totalling 52 river miles, between Glen
Ewen, Saskatchewan, CA and Mouse River Park, ND. This reach was sampled 29
times during the period of this study. During winter months, DO under the ice was
constantly below 1 mg/L. During the summer diurnal swings of DO caused the stream to fall below the designated 5 mg/L standard in the early morning hours. Sediment
oxygen demand was determined to be the main stressor.
Two contaminant sources that contribute to DO variation on the Souris River
were identified, livestock ranching practices and the physical alteration of the river.
Ranching is the leading cause of impairment. Livestock in the riparian area contribute
organic inputs and stream bank erosion. Physical alterations lead to DO variation in
two ways. Upstream impoundments eliminate scouring flows allowing sediment to
build up. Downstream impoundments back up water into study reach contributing to
sedimentation. Low head dams create hydrologic flow issues which lead to dissolved
oxygen depletion. | en_US |
| dc.publisher | North Dakota State University | en_US |
| dc.rights | NDSU policy 190.6.2 | en_US |
| dc.title | Souris River Dissolved Oxygen Study in Support of Total Maximum Daily Load Development | en_US |
| dc.type | Thesis | en_US |
| dc.date.accessioned | 2024-01-04T18:39:13Z | |
| dc.date.available | 2024-01-04T18:39:13Z | |
| dc.date.issued | 2010 | |
| dc.identifier.uri | https://hdl.handle.net/10365/33563 | |
| dc.subject.lcsh | Water -- Dissolved oxygen -- Souris River. | en_US |
| dc.subject.lcsh | Water -- Pollution -- Total maximum daily load -- Souris River Watershed. | en_US |
| dc.subject.lcsh | Water quality -- Souris River. | en_US |
| dc.rights.uri | https://www.ndsu.edu/fileadmin/policy/190.pdf | en_US |
| ndsu.degree | Master of Science (MS) | en_US |
| ndsu.college | Interdisciplinary Studies | en_US |
| ndsu.department | Environmental and Conservation Sciences | en_US |
| ndsu.program | Environmental and Conservation Sciences | en_US |
| ndsu.advisor | Lin, Wei | |
| ndsu.advisor | Saini-Eidukat, Bernhardt | |
