Water Availability for Oil Well Development in North Dakota Status of Water Depot Permit Applications Robert Shaver Water Appropriation Division North Dakota State Water Commission
Scope of Presentation Surface Water Availability Ground Water Availability –Bedrock Aquifer Fox Hills Aquifer –Glacial Aquifers Killdeer Aquifer Shell Creek Aquifer
Surface Water Availability Knife River Bakken Areal Extent
Knife River at Manning, ND
Surface Water Availability Bakken Areal Extent Missouri River/Lake Sakakawea most reliable water supply
Ground Water Availability Bedrock Aquifers FOX HILLS AQUIFER
Areal Extent of Fox Hills Aquifer
Fox Hills Aquifer Fox Hills Aquifer occurs from land surface to depths of ≈ 2,000 feet in west central part of state Well yields of up to 200 gpm Variable water chemistry –Relatively high salinity –Sodium-bicarbonate type water
Fox Hills Aquifer Cont. Major source for domestic/stock use in western North Dakota Monitoring since 1980s indicate pressure head declines of 1 to 2 feet/year Negative impact on flowing wells in Little Missouri, Missouri, and Knife River valleys
Flowing wells in the Fox Hills Aquifer
Rate of Decline ≈ 1.2 Feet/ Year
Management of Fox Hills Aquifer Groundwater mining is occurring Fox Hills Aquifer is an important water source Every effort should be made to develop large scale ground water supplies from other sources
Ground Water Availability in Glacial Aquifers KILLDEER AQUIFER Dunn County
Glacial Drift Aquifers
A A’ Killdeer Aquifer
¼ to ½ mile wide 200+ feet 500 gpm Geohydrologic Section A-A’ Showing the Killdeer Aquifer
Permit Acre- Feet Permit Acre-Feet City of Killdeer 365 Acre-Feet Medicine Hole Golf Course 72 Acre-Feet Approved Water Permits in the Killdeer Aquifer
Permit Acre-Feet None Granted Permit Acre-Feet 130 Ac-Ft Granted City of Killdeer 365 Acre-Feet 75 Ac-Ft Granted Medicine Hole Golf Course 300 Acre-Feet 75 Ac-Ft Granted Permit Acre-Feet None Granted New Permits and Amounts Granted
Schematic Diagram of A Typical Glacial Diversion Channel Aquifer in Western North Dakota
Water Depots in North Dakota 28 Permitted Water Depots –2,340 acre-feet (763 million gallons) per year 30 Pending Water Permit Applications –5,534 acre-feet (1.8 billion gallons) per year
The most reliable water supply in terms of both quantity and quality required for oil field development in western North Dakota is Lake Sakakawea and the Missouri River