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Unformatted text preview: Ingraffea uses an outlandish number that computes to over 30,000 wells per year, presumably to exaggerate the environmental impact (even though he says he knows it isn’t a realistic number) Water usage Chesapeake estimates of 5.5 million gallons of fresh water required per well for completion and fracturing Ingraffea, assuming 168,000 wells in 5 years (instead of 1000 to 5000 wells per year), computes 924 billion gallons of fresh water consumed in 5 years Ingraffea’s 924 billion gallons in 5 years computes out to 506 million gallons per day, 5% of the total water usage in Pennsylvania. But realistically, the number would be much smaller than that. Pennsylvania uses about 9610 million gallons per day from surface (91%) and groundwater (9%) sources (based on 1995 data). The other environmental impact is produced water. some of that water will be recycled rest needs to be disposed by injection or treated...
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This note was uploaded on 04/18/2011 for the course PGE 301 taught by Professor Olson during the Spring '11 term at University of Texas.
- Spring '11