For purposes of this chapter and in use with any resolution regarding fees of the storm sewer utility, the following terms, phrases, words, and their derivatives shall have the meanings set forth in this section. The words "shall" and "will" are mandatory, the word "may" is permissive. Words not herein defined shall be given their common and ordinary meaning.
DETENTION POND: A detention basin or retarding basin is an excavated area installed on, or adjacent to, tributaries of rivers, streams, lakes or bays to protect against flooding and, in some cases, downstream erosion by storing water for a limited period of time. These basins are also called “dry ponds,” “holding ponds” or “dry detention basins” if no permanent pool of water exists. Detention ponds that are designed to permanently retain some volume of water at all times are called retention basins. In its basic form, a detention basin is used to manage water quantity while having a limited effectiveness in protecting water quality, unless it includes a permanent pool feature.
DEVELOPED PARCEL: Any parcel of land that has been altered from its natural condition by grading, filling, through the construction of improvements or construction of impervious surfaces of any kind.
EQUIVALENT RESIDENTIAL UNIT (ERU): Three thousand (3,000) square feet of impervious surface, or the approximate amount of impervious surface, expressed in square feet, on developed single-family residential parcels in Plain City.
LOW IMPACT DEVELOPMENT:
A. Engineered systems, either structural or natural, that use or mimic natural processes to promote infiltration, evapotranspiration, and/or reuse of storm water as close to its source as possible to protect water quality and aquatic habitat low impact development (LID) means an approach to stormwater management that mimics a site’s natural hydrology as the landscape is developed. Using low impact development approach, stormwater is managed on-site and the rate and volume of predevelopment stormwater reaching receiving waters is unchanged. The calculation of predevelopment hydrology is based on native soil and vegetation.
B. Low impact development principles complement, and sometimes replace, traditional stormwater management systems, which historically emphasized moving stormwater off- site with curbs, pipes, ditches and ponds.
C. Green infrastructure is an approach to wet weather management that is cost-effective, sustainable, and environmentally friendly. Green infrastructure management approaches and technologies infiltrate, evapotranspiration, capture and reuse stormwater to maintain or restore natural hydrologists. The terms “low impact development” and “green infrastructure” are used interchangeably.
IMPERVIOUS SURFACE: Any hard surface, other than the parcel's natural surface, that prevents or retards the absorption of water into the soil or that causes water to run off the surface in greater quantities or at a greater rate of flow than the natural surface.
RETENTION POND: All the water runs out between storms and it usually remains dry. A retention basin or pond has a riser and orifice at a higher point and therefore retains a permanent pool of water. A retention pond looks like a regular pond, but plays an important role in controlling stormwater runoff.
STORM DRAINAGE: Water produced by a natural storm such as rain, snow, sleet, etc.
STORM SEWER SYSTEM: The system of pipes, collection boxes, forebays, oil/water separators, basins, or other manufactured or installed improvements required and designed to collect and drain water produced by storms or ground water. (Ord. 2003-003, 5-15-2003; amd. Ord. 2020-10, 10-15-2020)