| CLASSIFICATION | gpd estimate |
| Offices | .06 gpd/square foot |
| Medical/Dental | .4 gpd/square foot |
| Industrial (light-dry process) | .067 gpd/square foot |
| Industrial | .15 gpd/square foot |
| Bank | .10 gpd/square foot |
| Bakery | .15 gpd/square foot |
| Retail | .05 gpd/square foot |
| Supermarket | .05 gpd/square foot |
| Restaurant | 1.5 gpd/square foot |
| Auto Sales/Garage | .05 gpd/square foot |
| Auto Body Shop | .05 gpd/square foot |
| Government Building | .10 gpd/square foot |
| Funeral Home | .05 gpd/square foot |
| Beauty Salon | 100 gpd/chair (MPC) |
| Barber Shop | 100 gpd/chair (MPC) |
| Lodge Hall | .25 gpd/square foot |
| Dry Cleaner | .15 gpd/square foot |
| Utilities | .10 gpd/square foot |
| Health Club | .15 gpd/square foot |
| Veterinarians | .65 gpd/square foot |
| Taverns, Bars | .90 gpd/square foot |
| Warehouse | .01 gpd/square foot |
| Boarding House | 50 gpd/bed | + 250gpd per edu |
| Hotels/Motels | 100 gpd/unit |
| Single Family Home | 250 gpd/unit |
| Duplex | (Any combination of plexes (4) | 500 gpd/2 units 250 gpd x n |
| Multiplex (4 or more units / building) | | 180 gpd / unit |
| Mobile Home | 250 gpd |
| Retirement Housing Complex | | 120 gpd/unit |
| Bowling Alley | 75 gpd/lane |
| Laundry | 400 gpd/20 lb machine |
| Service Stations w/rest rooms | 500 gpd/island | 300 for second island |
| Hospitals | 150 gpd/bed | |
| Nursing Homes | 100 gpd/bed |
| Day Care | 10 gpd/child |
| Schools | 10 gpd/student |
| Campgrounds (no hookups) | 60 gpd/site |
| Campgrounds (w/hookups) | 75 gpd/site |
| Visitor Center | 400 gpd/toilet, 200 gpd/urinal |
| Marina | 100gpd+10gpd/slip + 400 gpd/washer |
| Church (sanctuary) | 1 edu |
| Car Wash | to be determined | | |
| Fast-food Restaurant | (no table service) | 20 gpd/seat |
