Instructions: Read the scenarios below to answer the computational questions.

Q1. If the United States uses approximately 322 billion gallons of water per day, and a single hydraulic fracturing well uses about 4 million gallons of water, what percentage of one day’s total U.S. water use is equivalent to the water used by one well? Round to five decimal places.

Q2. Hydraulic fracturing produces about 103 billion cubic feet of natural gas per day (Bcf/d). The United States consumes about 32.50 trillion cubic feet (Tcf) of natural gas per year. Based on these values, would natural gas produced from hydraulic fracturing be enough to meet total U.S. annual natural gas consumption? Show all calculations (including unit conversions).

Q3. If a hydraulically fractured well uses 4 million gallons of water and produces 5 billion cubic feet (Bcf) of natural gas over its lifetime, how many gallons of water are used per million cubic feet (MMcf) of natural gas produced? Show all calculations. 

Q4. If the United States produces 103 billion cubic feet (Bcf) of natural gas in one day from hydraulic fracturing, how much energy (in trillion Btu, or TBtu) does this represent? Natural gas contains on average about 1,037 British thermal units (Btu) per cubic foot. Show all calculations.