BEST MANAGEMENT PRACTICES (BMP): Means the physical, structural and/or managerial practices that, when used singly or in combination, prevent or reduce pollution of water, have been approved by the City, and have been incorporated by reference into this chapter as if fully set out herein.
CITY STORMWATER SYSTEM OR STORMWATER SYSTEM: Means the conveyances owned or operated by the City for the collection and transportation of stormwater, including the roads and streets and their drainage systems, catch basins, curbs, gutters, ditches, manmade channels, and storm drains.
CONTAMINANT: Means any physical, chemical, biological, or radiological substance or matter in water.
COUNTY: Means Salt Lake County, Utah.
CULVERT: Means a manmade conveyance of stormwater flows. This may include a pipe or other constructed conveyance.
CUT: Means a portion of land surface or area from which earth has been removed or will be removed by excavation; the depth below original ground surface to the excavated surface.
DESIGN STORM: Means a hypothetical storm, of a given frequency interval and duration, used in the analysis and design of a stormwater system facility.
DISCHARGE: Means dispose, deposit, spill, pour, inject, seep, dump, leak or place by any means, or that which is disposed, deposited, spilled, poured, injected, seeped, dumped, leaked or placed by any means including any direct or indirect entry of any solid or liquid matter into the City's stormwater system.
EROSION: Means the removal of soil particles by the action of water, wind, ice, or other geological agents, whether naturally occurring or acting in conjunction with or promoted by anthropogenic activities or effects.
ILLICIT CONNECTIONS: Means illegal and/or unauthorized connections to the City's stormwater system whether or not such connections result in discharges to that system.
ILLICIT DISCHARGE: Means any discharge to the City's stormwater system that is not composed entirely of stormwater and not specifically exempted under section 13.52.080 of this chapter.
LAND DISTURBING ACTIVITY: Means any activity on property that results in a change in the existing soil cover (both vegetative and nonvegetative) and/or the existing soil topography. Land disturbing activities include, but are not limited to, development, redevelopment, demolition, construction, reconstruction, clearing, grading, filling and excavation.
MAINTENANCE: Means any activity that is necessary to keep a stormwater facility in good working order so as to function as designed. Maintenance shall include complete reconstruction of a stormwater management facility if reconstruction is needed in order to restore the facility to its original operational design parameters. Maintenance shall also include the correction of any problem on the site property that may directly impair the functions of the stormwater management facility.
MAINTENANCE AGREEMENT: Means a document recorded in the land records that acts as a property deed restriction, and which provides for long term maintenance of stormwater management practices and facilities.
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM PERMIT OR NPDES PERMIT: Means a permit issued pursuant to 33 USC 1342.
OFF SITE FACILITY: Means a structural BMP located outside the subject property boundary described in the permit application for land development activity.
ON-SITE FACILITY: Means a structural BMP located within the subject property boundary described in the permit application for land development activity.
PEAK FLOW: Means the maximum instantaneous rate of flow of water at a particular point resulting from a storm event.
PERSON: Means any and all persons, natural or artificial, including any individual, firm, or association and the County or private corporation organized and existing under the laws of the State or County.
RUNOFF: Means that portion of the precipitation on a drainage area that is discharged from the area into the City's stormwater system.
SEDIMENT: Means solid material, both mineral and organic, that is in suspension, is being transported, or has been moved from its site of origin by air, water, gravity, or ice and has come to rest on the earth's surface either above or below sea level.
SEDIMENTATION: Means soil particles suspended in stormwater that can settle in streambeds and disrupt the natural flow of the stream.
SOILS REPORT: Means a study of soils on a subject property with the primary purpose of characterizing and describing the soils. The soils report must be prepared by a qualified soils engineer, who is directly involved in the soil characterization either by performing the investigation or by directly supervising employees.
STATE: Means the State of Utah.
STORMWATER: Means stormwater runoff, snowmelt runoff, surface runoff, infiltration and drainage.
STORMWATER MANAGEMENT FACILITIES: Means the City's drainage system including structures, conduits, ditches, combined waters, waters, and all device appurtenances by means of which stormwater is collected, transported, pumped, treated or disposed of.
STORMWATER POLLUTION PREVENTION PLAN: Means a written plan (including drawings and other graphic representations) that is designed to minimize the accelerated erosion and sediment runoff at a site during construction activities.
STORMWATER SYSTEM MANAGEMENT: Means the programs to manage the quality and quantity of stormwater runoff in a manner that complies with State and Federal regulatory requirements and the City's stormwater management objectives.
STORMWATER SYSTEM MANAGEMENT PLAN: Means the set of drawings and other documents that comprise all the information and specifications for the programs, drainage systems, structures, BMPs, concepts and techniques intended to maintain or restore quality and quantity of stormwater runoff to predevelopment levels.
STRUCTURAL BMPs: Means devices that are constructed to provide control of stormwater runoff.
SURFACE WATERS: Means waters upon the surface of the earth in bounds created naturally or artificially including, but not limited to, streams and other watercourses.
WATERS OF THE UNITED STATES: Means surface watercourses and water bodies defined at 40 CFR section 122.2, including all natural waterways and definite channels and depressions in the earth that may carry water, even though such waterways may only carry water during rains and storms and may not carry water at and during all times and seasons.
WATERSHED: Means all the land area that contributes runoff to a particular point along a waterway.
WATERWAY: Means a permanent or intermittent stream or other body of water, either natural or manmade, which gathers or carries surface water. (Ord. 17-40)