Future non-residential wastewater discharges in undeveloped portions of the City are difficult to forecast because each type of non-residential connection consumes and discharges different amounts of water. Future flows for the different non-residential land use areas were calculated based on the commercial sewer use in gallons per day per acre in Table 5-3, and the acreage of the undeveloped land. There is typically a strong correlation between future non-residential sewer loading and water usage. Therefore, as detailed water usage can be forecast in future planning, the more accurate the results are for future non-residential sewer loading projections.
A summary of the residential and non-residential flow projections for the existing system and City buildout are shown in Table 5-4.
Planning Year | Residential Flow (MGD) | Non-Residential Flow (MGD) | Total WWTP Flow (MGD) |
Existing 2019 | 11.79 | 3.32 | 15.11 |
Buildout | 15.90 | 6.45 | 22.35 |