Each sewer unit is equal to a single-family residence and is called an equivalent dwelling unit (EDU). Every property is assessed, including developable vacant parcels.
A residential unit is defined as the quantity of wastewater flow expected from the unit. This may be based on average water meter data or on assumed flow based on municipal standards.
For multiple-family residential properties, the number of residential units is determined based on a factor and/or multiplier such as the number of bedrooms, total number of rooms, or water use (For example, more than 3 rooms = 1 unit, less than 3 rooms = ½ unit).
Non-residential (commercial) properties are assessed based on existing zoning regulations and best use. Residential equivalency can be determined by floor space (4000 s.f. = 1 sewer unit) or total developable area, or by comparing water use to the residential water use basis.
For undeveloped properties (land parcels without structures), the rate and number of EDUs is determined by likely use, high wastewater demand businesses are considered best use (e.g. restaurants, car wash facilities or laundry operations)
The projected annual EDU rate for this project is $696 per EDU.