One task for today is filing on a dopey pond/wetland.?ÿ
Water is provided by a pipe which needs some calculations for it's potential hydrologic parameters.?ÿ
Put the length, diameter ect in the calculator, it spits out the numbers and put them into the form for the filing.?ÿ
It's all cookbook and mostly errorless.
So I'm looking at the form, all the review stuff and I pass over the one big flaw.
Just before sending it off it jumps out at me.
The number 83 in the line for cfs. 83? 83cfs for a 6" pipe, a few hundred feet long and dropping a handful of feet.?ÿ
Someone copied 83 gpm from the spreadsheet on the line above the cfs number of .9.
They would have had a good laugh over that one.?ÿ
Try to imagine 83 cfs going through a 6" poly pipe.?ÿ
It truly helps to have a "feeling" for numbers.
Is that conversion right?
83 gpm/60 = 1.383 gps
?ú 7.48 gal/ cu ft = 0.18 cfs vs .9
Where's the mistake?
You are correct Bill, the first # was incorrect, there was a bad input when the calculation was entered, the .9cfs is correct.
But I used a different calculator and it doesn't output the GPM. Then I checked it against a spreadsheet an engineer has given me for this purpose.?ÿ
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