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There a been a good couple 'validation' points along Crescent Pond renovation and this one is specific to the evaporation / seepage.

Aug '21 - late May '22 - the pond filled up to the overflow, 11' deep, 65' wide, 1100' long = 5,875,155.00 us gallons.

Since the material I used to make the "dam" aka causeway at the property line is porous I have to figure the other surface area into as well, which comes to 2.5 SA.

We've had a drought in this part of Ohio for about 3 weeks now and I have a rain gauge at the farm so I have the data to correlate.



In June, .24"+.56"+.64"+.08"+.04" = 1.56" total rainfall for the month. The watershed I calculated is 1" of rain in the ponds watershed would produce in 531,000 sqft x .62 = 329,220 gallons or in June we should have added 513,583 gallons.

NCRS and others have "average" evaporation rates by month - so for June - that's 4.5" of loss per PAN for the month of June.



So, if I do Simple (KISS) 1.56" of rainfall (-) 4.5" of avg PAN evaporation loss 'should' indicate a drop in the overall pond average level by -2.94" (roughly)

Last day of June capture.


this last pic is zoom on pond level indicator. There is a mark right at the current water level which is ~ 3" low, or below the overflow. The validation is that the pond's renovations and patch (Aug '21) are all holding really well based on the correlation of the Avg PAN loss and the current pond level.



Lots of SMILES over here!!!