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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
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Water Availability for Oil Well Development in North DakotaStatus 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 Bakken Areal Extent Knife River
Surface Water Availability Missouri River/Lake Sakakawea most reliable water supply Bakken Areal Extent
Ground Water AvailabilityBedrock Aquifers 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
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
A A’ Killdeer Aquifer
Geohydrologic Section A-A’ Showing the Killdeer Aquifer ¼ to ½ mile wide 500 gpm 200+ feet
Medicine Hole Golf Course 72 Acre-Feet Permit 3701 80 Acre-Feet City of Killdeer 365 Acre-Feet Permit 5915 20 Acre-Feet Approved Water Permits in the Killdeer Aquifer
Medicine Hole Golf Course 300 Acre-Feet 75 Ac-Ft Granted Permit 6043 350 Acre-Feet None Granted Permit 6011 134 Acre-Feet None Granted City of Killdeer 365 Acre-Feet 75 Ac-Ft Granted Permit 5989 350 Acre-Feet 130 Ac-Ft 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