Water Equivalents
1 cubic foot = 7.48 gallons100 cubic feet = 1 ccf (748 gallons)
1 acre-foot = 43,560 cubic feet = 325,851 gallons
1 cubic foot per second = 450 gallons per minute or 1 cfs for 24 hours = 1.983 acre-feet
1 cfs for 30 days = 59.5 acre-feet
1 cfs for one year = 724 acre-feet
1 million gallons = 3.07 acre-feet
1 million gallons per day (mgd) = 1.120 acre-feet per year
1000 gallons per minute = 2.23 cfs
1000 gallons per minute = 4.42 acre-feet per day
Metric Equivalents
15 million gallons per day (mgd) = 56.775 megaliters pr day (ML/day)
1 acre = .004 square kilometers (km)
78,000 acres = 312 square kilometers (km)
120 square miles = 193.08 square kilometers
1 acre foot = 1.233 million liters = 1.233 megaliters
1 ccf (one hundred cubic feet) or 748 gallons = 2832 liters = 2.832 cubic meters
1 gallon per minute (gmp) = 3.78 liters per minute
1 pound per square inch (psi) = 0.07031 kg/sq. cm
*An acre-foot of water is enough to cover one acre of land one foot deep.
This list has been adapted from the Irvine Ranch Water District web-site.
3 responses so far ↓
Holly // December 1, 2007 at 1:30 pm
I just had to go to the Irvine RAnch Water District Website because my parents lived in Irvine for many years. When I visited them I of course drank water. Now I get to see a photo of the beautiful Irvine Lake which accomodated myself and my parents. We should all know where our water comes from, eh?
waterfortheages // December 1, 2007 at 11:30 pm
Yes, it certainly would be a good thing.
Now, I live in Olympia, and sadly, but true, I am not even sure of the sources of all of my city water. (Although, I think it is primarily from some springs, and groundwater sources.)
Robert Teeter // January 4, 2008 at 9:51 am
Ever hear of a sverdrup? It’s a unit of water flowing in an ocean current. See http://www.ecoworld.com/blog/2007/07/27/sverdrups-brine/
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