Each well requires about 4 million gallons of water for fracturing. With estimates of 1,800 new wells next year, that would require about 60 acre-feet of water.
A spokesman said that Lake Sakakawea flows at about 40,000 acre-feet daily. Sixty (6) acre-feet represents about three-tenths of one percent, according to the spokesman.
I could be wrong, but 60/40,000 = 0.0015 or 0.15% or less than two-tenths of one percent, but the point is taken.
The water necessary for fracking wells in North Dakota will not be a limiting factor.
UPDATES
July 24, 2010: A new water pipeline will alleviate ground water stress in Dunn County.