Sheridan County Water Reservation

Administering Entity: Sheridan County Conservation District
Entity Type(s): Conservation District
Select all that Apply: Streams, Rivers, Wells, Springs, Wetlands, Lakes and Reservoirs
Primary Data Type(s): Groundwater Level, Water Chemistry, Irrigation Well Water Use
Primary Watershed Monitoring Objective(s): Baseline, Problem identification, Trends
Subbasin: Big Muddy, MT, CN (10060006), Brush Lake Closed Basin, CN, MT, ND (10060007)
Counties: Roosevelt County, Sheridan County
Volunteers: Yes
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Contact Name: Tahnee Benson
Contact Email:

Manage irrigation development of the Clear Lake aquifer. Water level trends are reviewed annually to assess impacts to wetlands, lakes, and other water users. Water levels have been monitored since the early 1980’s and show declines caused by the 1980’s drought and recovery since the mid-1990’s. Current results show little or no impacts to wetlands and lakes. Water levels decline during the irrigation season but recover by the next spring. Results of a GWIP project produced a numeric model that will assist the SCCD evaluate any potential new permits in the South Medicine Lake area.