How much water does it take to raise 1 acre surface area by 1 inch? Also is there a formula to use for evaporation rates in ponds?
Answer An acre-foot of water (the amount of water covering an acre at a depth of 1 foot) is equal to 325,851 gallons. An acre-inch would therefore be equal to 27,154 gallons. Evaporation varies by location and is primarily dependent on temperature and wind. Annual evaporation rates for your particular area should be available from your local agriculture extension office or county ag agent.
