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How many inches of rain would 1.4 million gallons be equal to?

Posted 10 years ago
POSTED BY: Johnny Ward
5 Replies
POSTED BY: Daniel Lichtblau
Posted 10 years ago

Here are some actual figures

1 Acre is 6272600 square inches. 1 gallon (US) is 231 cu inches. In a formula:-

(1400000*6*52*231)/(6272600*600)

which equals 840840/31363 or 26.8099 inches per annum.

That is for all 600 acres, if the actual acreage is less, multiply that figure 26.8099 by 600/X where X is the lesser acreage. so if the acreage covered was only 480 we would get 840840 * 600 /31363 * 480 = 33.51 inches annually, and to work backwards if 60 inches was the depth it would equate to covering 268 of the 600 acres.

Paul.

POSTED BY: Paul Cleary
Posted 10 years ago

Hi Bill,

That makes sense to me, although just as gut feeling 26" seems low. The concern I have is that someone has quoted a water depth of 60+ inches per year. He does not specifically state 600 acres though. The land the company has purchased will total 600 acres but apparently not all of it will be spray able. Some of it will be covered in trees. To get an 100% accurate figure I will ned to know the exact acreage I guess.

If you have 2 min to look at a video you can see where he quoted these figures at a county commissioners meeting. We have a city council meeting coming up Monday and want to be 100% sure we have our facts right. If we don't and the chicken company catches us on the math it will make the rest of our claims look wrong as well.

Your equation makes sense to me. All I will need to do is change the acres if I can get a more accurate figure of the sprayable acres.

Just in case you are interested here is the video in question where he states his number:

http://youtu.be/Oh5eudNfaPQ

Thank you very much for your help with this. I really appreciate it.

POSTED BY: Johnny Ward
Posted 10 years ago
POSTED BY: Bill Simpson
Posted 10 years ago

See if you can convince yourself if this is correct.

solve 1.4 million gallons6.52.=x inches*600 acres

Both sides are volumes and the only thing we don't know is the depth x in inches.

POSTED BY: Bill Simpson
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