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also...for problem #12.1 (storage capacity) - how do they get 12,500m3 from the graph? I'd think 14,000. thanks

In Problem #5 about the industrial WWTP: Where can I find the the 7.7mg/L DO in water @ Temp=22C and elevation correction factor of 0.88 that they refer to in the solution? Initially I thought it would be App 22D. Thanks

been working through H2O-Res 6min sol'n...curious if anyone has been successful in finding obscure appendices in the cerm which greatly simplify some problems e.g. - Hazen/Williams and Mannings nomographs figured i'd toss it out there :)