For the purpose of this chapter and all other ordinances relating to storm water, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
BEST MANAGEMENT PRACTICES (BMP). A wide range of management procedures, schedules of activities, prohibitions of practices, maintenance procedures and other management practices which have been demonstrated to effectively control the quality and/or quantity of storm water runoff and which are compatible with the planned land use. BMPs also include treatment requirements, operating procedures, and practices to control site runoff, spillage or leaks, sludge or water disposal, or drainage from raw material storage.
CATCH BASIN. An inlet into the storm water system designed to keep out large or obstructive matter.
CITY or MUNICIPALITY. Or similar terms, Brigham City, Utah, its geographical boundaries, jurisdiction, and its contract providers as the context may dictate. The CITY may also be referred to as a MUNICIPAL SEPARATE STORM SEWER SYSTEM (MS4).
CITY COUNCIL or COUNCIL. The Municipal Council of the city.
COMMON PLAN OF DEVELOPMENT.
(1) One plan for development or sale, separate parts of which are related by any announcement, piece of documentation (including a sign, public notice or hearing, sales pitch, advertisement, drawing, plat, blueprint, contract, permit application, zoning request, computer design and the like), physical demarcation (including contracts) that identify the scope of the project.
(2) A plan may still be a COMMON PLAN OF DEVELOPMENT OR SALE even if it is taking place in separate stages or phases, is planned in combination with other construction activities, or is implemented by different owners or operators.
(3) COMMON PLANS OF DEVELOPMENT may be residential, commercial or industrial in nature.
DEBRIS. Any dirt, rock, sand, tree or other rubbish, litter and the like.
(UTAH) DEPARTMENT OF ENVIRONMENT QUALITY (DEQ or UDEQ). The Utah Department of Environmental Quality, an agency of the State of Utah, as well as its agents and employees.
DETENTION BASIN. A water storage pond designed to store a volume of water that reduces the post-development peak runoff of a storm to the pre-development runoff rate or other rate, as defined by the governing body. This is accomplished by the use of an outlet which controls the rate of flow out of the pond into the receiving storm drain or water body. DETENTION PONDS contain an inlet, outlet and spillway; the inlet and outlet may be one and the same. The DETENTION BASIN is intended to drain the storm water within a period of time to make the volume available for the next storm event.
DEVELOPED PARCEL. Any parcel of real property that has been altered from its natural condition by grading, filling or the construction of improvements or other impervious surfaces.
DEVELOPMENT or LAND DEVELOPMENT. Any human-made change to improved or unimproved real property, including, but not limited to, site preparation, filling, grading, paving, excavation and construction of buildings or other structures.
DIRECTOR. The Director of Public Works of the city or his or her duly authorized representative.
DISTURB. To alter the physical condition, natural terrain or vegetation of real property by clearing, grubbing, grading, excavating, filling, building or other construction activity.
(UTAH) DIVISION OF WATER QUALITY (DWQ). The Utah Division of Water Quality, an agency of the State of Utah, as well as its agents and employees.
DRAIN INLET. A point of entry into a sump, detention basin or storm drain system.
DRINKING WATER SOURCE PROTECTION ZONE. The surface and subsurface area surrounding a ground water source of drinking water supplying a public water system, through which contaminants are reasonably likely to move toward and reach such ground water source.
(UNITED STATES) ENVIRONMENTAL PROTECTION AGENCY (EPA).
EQUIVALENT SERVICE UNIT (ESU). The average amount of impervious surface, expressed in square feet, on developed single-family residential parcels.
HAZARDOUS MATERIAL. Any material, including any substance, waste or combination thereof, which because of its quantity, concentration, physical, chemical or infections characteristics may cause, or significantly contribute to a substantial presence or potential hazard to human health, safety, property or the environment when improperly treated, stored, transported, disposed of or otherwise managed. HAZARDOUS MATERIAL includes, but is not limited to, any hazardous substance designated under 40 C.F.R. part 116, pursuant to § 311 of the Clean Water Act.
ILLICIT CONNECTIONS. Either of the following:
(1) Any drain or conveyance whether on the surface or subsurface, which allows an illicit discharge to enter the storm drain system, including, but not limited to, any conveyances which allow any non-storm water discharge, including sewage, process wastewater and wash water to enter the storm drain system and any connections to the storm drain system from indoor drains and sinks, regardless of whether said drain or connection had been previously allowed, permitted or approved by a government agency; or
(2) Any drain or conveyance connected to the storm drain system which has not been:
(a) Documented in plans, maps or equivalent records; and
(b) Approved by the city.
ILLICIT DISCHARGE. Any discharge to a municipal separate storm sewer that is not composed entirely of storm water, except discharges pursuant to a UPDES permit (other than the UPDES permit for discharges from the municipal separate storm sewer) and discharges resulting from emergency firefighting activities.
IMPERVIOUS SURFACE. Any hard surface, other than the 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.
LOW IMPACT DEVELOPMENT (LID). An approach to land development (or re-development) that works with nature to more closely mimic pre-development hydrologic functions. LID employs principles such as preserving and recreating natural landscape features, minimizing effective imperviousness to create functional and appealing site drainage that treat storm water as a resource rather than a waste product. There are many practices that have been used to adhere to these principles such as bioretention facilities, rain gardens, vegetated rooftops, rain barrels and permeable pavements.
MUNICIPAL SEPARATE STORM SEWER SYSTEM (MS4). A conveyance or system of conveyances (including roads with drainage systems, municipal streets, catch basins, curbs, gutters, ditches, human-made channels or storm drains).
NON-STORM WATER RUNOFF. Any runoff other than storm water.
PARCEL. The smallest separately segregated unit or plot of real property having an identified owner, boundaries and surface area which is documented for tax purposes and given a tax account (lot) number by the County Assessor.
PERCOLATION. The ability of a soil to absorb water, typically measured by a Standard Percolation Test in units of minutes per inch.
PERSON. Any individual, corporation, partnership, association, company or body politic, including any agency of the state and the United States Government.
POLLUTANT. Any thing which causes or contributes to pollution. POLLUTANTS may include, but are not limited to paints, varnishes and solvents; oil and other automotive fluids; non-hazardous liquid and solid wastes; yard wastes; refuse, rubbish, garbage, litter or other discarded or abandoned objects, articles and accumulations so that same may cause or contribute to pollution; floatables; pesticides, herbicides and fertilizers; hazardous substances and wastes; sewage, fecal coliform and pathogens; dissolved and particulate metals; animal wastes; wastes and residues that result from constructing a building or structure (including, but not limited to, sediments, slurries and concrete resonates); and noxious or offensive matter of any kind.
REDEVELOPMENT. The addition, replacement or improvement of impervious surfaces on a developed site.
RETENTION BASIN. A water storage pond designed to store the runoff volume of a storm and dispose of water through percolation, infiltration and evaporation within a period of time to make the volume available for the next storm event. A RETENTION BASIN contains an inlet and spillway, but no structure outlet.
SANITARY SEWER OVERFLOW (SSO). A discharge of untreated sanitary wastewater.
STORM DRAIN. A closed conduit for conducting storm water that has been collected by inlets or collected by other means.
SINGLE-FAMILY RESIDENTIAL. A residential building having only one living unit, or a residential building having more than one living unit, if living units are separately owned and titled.
STORM WATER. Any flow that occurs during or following any form of natural precipitation. STORM WATER includes only the portion of such flow that is composed of precipitation.
STORM WATER MANAGEMENT PLAN (SWMP). The SWMP document is the written plan that is used to describe the various control measures and activities the city will undertake to implement the requirements of the general permit for discharges from small municipal separate storm sewer systems as issued by the state’s Department of Environment Quality, Division of Water Quality.
STORM WATER SYSTEM. The system of conveyances (including sidewalks, roads with drainage systems, municipal streets, catch basins, detention basins, curbs, gutters, ditches, human-made channels, sumps, storm drains and ground water) owned and operated by the city, which is designed and used for collecting or conveying storm water. The STORM WATER SYSTEM may also be referred to as the STORM DRAIN SYSTEM or MUNICIPAL SEPARATE STORM SEWER SYSTEM or MS4.
STORM WATER RUNOFF. Precipitation that is not intercepted or otherwise captured at a site which eventually enters into the storm water system and natural water bodies such as rivers, streams and lakes.
SUMP. A formalized structure underground, surrounded by drain rock, that acts as a detention basin to allow the slow release of water into the surrounding sub-soil. SUMPS usually receive storm water runoff from paved areas such as streets, parking lots, building roofs and the like.
UPDES. Utah Pollutant Discharge Elimination System. All definitions found in the general permit for discharges from small municipal separate storm sewer systems (MS4s), not included in the above, are hereby incorporated by reference.
(Prior Code, § 24.05.030) (Ord. 00-22, passed 6-1-2000; Ord. 20-01, passed 1-2-2020)