Quantifying the amount of Wastewater for a Office Building
Quantifying the amount of Wastewater for a Office Building
(OP)
I need to design a small lift station for an office building, is there a resource to help me quantify the design flow for wastewater produced by that building.
Thanks
SJCivil
Thanks
SJCivil





RE: Quantifying the amount of Wastewater for a Office Building
25 GPD/employee (minimum)
or
0.10 gal/sq.ft. (usable & heated space)
or
1 P.E. = 100 GPD
RE: Quantifying the amount of Wastewater for a Office Building
You can collect water use data from nearby, similar offices and develop your own design criteria.
good luck
RE: Quantifying the amount of Wastewater for a Office Building
h
Offices, schools and business establishments
15 Gallons Per Person Per Day per shift
RE: Quantifying the amount of Wastewater for a Office Building
Be careful when using a "per person/day" calculation in non-residential applications. Usage "can" change over time and a lower initial rate can cause problems down the road.
Theres a huge difference in the differing types of offices
(ie call center versus your office).
Ive run into a situation where the sanitary district was being a pain and decided my "new" usage (on old office building) required extensive downstream sanitary upgrades and fees. The client (which was the original owner as well) was not happy.
RE: Quantifying the amount of Wastewater for a Office Building
What I always find to be interesting is how folks split that daily flow into gpm for conveyance design. That is, say it's 25 gpd/per employee, but is that employee going to dump (pardon the expression) it all into the system in 8 hours, 12 hours, 24 hours? It can make a difference.