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We are working on a sanitary sewer project that will serve approximately 1600 acres of land intended to be industrial development. Based on some quick research it looks like 1000-1500 gpd/ac (light industrial), 1500-3000 gpd/ac (medium industrial) and 1000 gpd/ac (Infiltration) are fair...

Thanks everyone for the input. The "back of the envelope" type stuff is what I was looking for. Something to be able to check the output from the software. I think I have this figured out now. Thanks.

So in this case the maximum flow rate into the ponds is around 850 cfs. The water surface elevations for the two storage areas need to remain relatively equal. How do I confirm the size of the equalizing pipe?

Hi there, I am currently working on an interconnected pond design that is giving me some trouble. Here is the basis of the design... I have two ponds, both of which will be wet with a constant water surface elevation. The two ponds (northern & southern) are seperated by an existing drainage...