The following definitions shall be applicable when the following words or phrases are used hereafter in this chapter, including use in the City of El Cajon's Jurisdictional Runoff Management Program (JRMP) document, whether or not these words or phrases are capitalized.
"Attached residential development"means any development that provides 10 or more residential units that share an interior/exterior wall. This category includes, but is not limited to: dormitories, condominiums and apartments.
"Authorized enforcement official"means the city manager or the city council of the city of El Cajon or any designee of the city manager or the city council of the city of El Cajon, who is responsible for enforcing the provisions of this chapter, including but not limited to, the directors, their management staff, and designees.
"Authorized enforcement staff"means any city employee who is assigned to duties involving permits and other city approvals, inspections, or enforcement related to this chapter.
"Automotive repair shop"means a facility that is categorized in any one of the following standard industrial classification codes: 5013, 5014, 5541, 7532-7534, or 7536-7539.
"Best management practices" or "BMPs"defined by 40 CFR
122.2 means schedules of activities, pollution treatment practices or devices, prohibitions of practices, general good housekeeping practices, pollution prevention and educational practices, maintenance procedures, and other management practices or devices to prevent or reduce the discharge of pollutants directly or indirectly to storm water, receiving waters, or the storm water conveyance system. Best management practices also include, but are not limited to, treatment practices, operating procedures, and practices to control site runoff, spillage or leaks, sludge or water disposal, or drainage from raw materials storage. Best management practices may include any type of pollution prevention and pollution control measure, approved by the city and consistent with the MS4 Permit that can help to achieve compliance with this chapter.
"Biofiltration"means practices that use vegetation and amended soils to detail and treat runoff from impervious surfaces. Treatment is through filtration, infiltration, adsorption, ion exchange, and biological uptake of pollutants.
"Channel"means a natural or improved watercourse with a definite bed and banks that conducts flowing water either continuously or intermittently.
"City"means the city of El Cajon.
"Clean Water Act section 303(d) impaired water body"means an impaired water body in which water quality does not meet applicable water quality standards and/or is not expected to meet water quality standards, even after the application of technology based pollution controls required by the Clean Water Act. The discharge of runoff to these water bodies by the co-permittees is significant because these discharges can cause or contribute to violations of applicable water quality standards.
"Code"means the El Cajon Municipal Code and each and every title, chapter, and section contained therein.
"Co-permittee"is defined at 40 CFR
122.26(b)(1), and means a permittee to an NPDES permit that is only responsible for permit conditions relating to the discharge for which it is operator.
"Commercial development"means any development on private land that is not exclusively heavy industrial or residential uses. The category includes, but is not limited to: mini-malls and other business complexes, shopping malls, hotels, office buildings, public warehouses, hospitals, laboratories and other medical facilities, educational institutions, recreational facilities, plant nurseries, car wash facilities, automotive dealerships, commercial airfields, and other light industrial complexes.
"Construction site"means any project, including projects requiring coverage under the state general construction storm water permit, that involves soil disturbing activities including, but not limited to, clearing, grading, disturbances to ground such as stockpiling, and excavation.
"Contamination"as defined in section 13050 of the Porter-Cologne Water Quality Control Act is "an impairment of the quality of waters of the State by waste to a degree which creates a hazard to the public health through poisoning or through the spread of disease. Contamination includes any equivalent effect resulting from the disposal of waste whether or not waters of the State are affected." In the event section 13050 of the Porter-Cologne Water Quality Act is amended or superseded, the amended or superseding section shall define "contamination."
"Constructed wetland"means a vegetated area that has been deliberately modified to provide or enhance habitat, to provide water quality benefits, or to moderate water flow rates or velocities, that is inundated or saturated by surface water or groundwater at a frequency and duration sufficient to support a prevalence of vegetation typically adapted for life in saturated soil conditions, commonly known as hydrophytic vegetation.
"Detached residential development"means any development that provides 10 or more freestanding residential units. This category includes, but is not limited to: detached homes, such as single-family homes and detached condominium.
"Development projects"means the construction, rehabilitation, redevelopment or reconstruction of any public or private projects.
"Directly connected impervious area" or "DCIA"means the area covered by a building, impermeable pavement, and/or other impervious surfaces, which drains directly into the storm drain without first flowing across permeable vegetated land area (e.g., lawns).
"Directors"means the directors or director of the Building Department, Community Development Department and the Public Works Department.
"Discharge,"when used as a verb, means to allow pollutants to directly or indirectly enter storm water, or to allow storm water or non-storm water to directly or indirectly enter the storm water conveyance system or receiving waters, from an activity or operations which one owns or operates. When used as a noun, "discharge" means the pollutants, storm water, and/or non-storm water that are discharged.
"Discharger"means any person or entity engaged in activities or operations or owning facilities, which will or may result in pollutants entering storm water, the storm water conveyance system, or receiving waters; and the owners of real property on which such activities, operations or facilities are located; provided however that a local government or public authority is not a discharger as to activities conducted by others in public rights-of-way.
"Discharges directly to"means that storm water or non-storm water enters receiving waters from a facility or activity, without mixing with any storm water or non-storm water from another facility or activity prior to entering such receiving waters.
"Drainage easement"means a legal right granted by a landowner to a grantee allowing the use of private land for storm water management purposes.
"Environmentally sensitive areas"means areas that include, but are not limited to, all Clean Water Act section 303(d) impaired water bodies; areas designated as an Area of Special Biological Significance by the SWRCB and the RWQCB; State Water Quality Projected Areas; water bodies designated as having a RARE beneficial use by the SWRCB and the RWQCB (as designated in the Water Quality Control Plan for the San Diego Basin and amendments); areas designated as preserves; and any other equivalent environmentally sensitive areas which have been identified by the co-permittees.
"Erosion"refers to any process in which land is diminished or worn away due to wind, water, or glacial ice. Often the eroded debris (silt or sediment) becomes a pollutant via storm water runoff. Erosion occurs naturally but can be intensified by land clearing activities such as farming, development, and road building.
"Erosion and sediment control plan"means a plan prepared under the direction of and signed by a Civil Engineer competent in the preparation of such plans and knowledgeable about current erosion and sediment control methods. The plan shall provide for protection of exposed soils, prevention of discharge of sediment, and desiltation of runoff at frequent intervals along flowage areas, at entrances to storm drains, at entrances to streets and driveways, and at the exit of the area being graded.
"Erosion control system"means any combinations of desilting facilities, retarding basins, flow decelerates, and/or erosion protection (including effective planning and the maintenance thereof) to protect the project site, adjacent private property, watercourses, public facilities, graded improvements, existing natural facilities, archaeological artifacts, and relieve waters of suspended sediments or debris prior to discharge from the site.
"Existing development"means any area that has been developed and exists for municipal, commercial, industrial or residential purposes, uses or activities. May include that area not actively used for its originally developed purpose, but may be re-purposed or redeveloped for another use or activity.
"Grading"means cutting and/or filling of the land surface to a designed slope or elevation.
"Groundwater"means subsurface water that occurs beneath the water table in soils and geologic formations that are fully saturated.
"Hillside"means lands that have a natural gradient of 25 percent (4 feet of horizontal distance for every 1 foot of vertical distance) or greater and a minimum elevation differential of 50 feet, or a natural gradient of 200 percent (1 foot of horizontal distance for every 2 feet of vertical distance) or greater and a minimum elevation differential of 10 feet.
"Hydrologic soil group"means the classification system for soil erodability set out in Soil Survey— San Diego Area, California (December 1973), issued by the U.S. Department of Agriculture Soil Conservation Service and U.S. Forest Service. In this system soils are categorized into four runoff potential groups. The groups range from "A" soils, which have high permeability and little runoff production, to "D" soils, which have low permeability rates and produce much more runoff.
"Hydromodification"means the change in the natural hydrologic processes and runoff characteristics (i.e., interception, infiltration, overland flow, interflow and groundwater flow) caused by urbanization or other land use changes that result in increased stream flows and changes in sediment transport. In addition, alteration of stream and river channels, installation of dams and water impoundments, and excessive stream bank and shoreline erosion are also considered hydromodification, due to their disruption of natural watershed hydrologic processes.
"Illicit connection" or "illegal connection"means a pipe, facility, or other device connected to the storm water conveyance system or receiving waters, which has not been reviewed and authorized by the city; or a permitted or authorized pipe, facility, or other device, which conveys illicit discharges.
"Illicit discharge" or "illegal discharge"means any discharge into the storm water conveyance system, or receiving waters that is prohibited by this chapter. This includes, but is not limited to, discharges of non-storm water that are not exempt discharges listed in section
13.10.060 of this code, discharges of irrigation runoff to the storm water conveyance system, any discharge from an illegal connection, and any discharge that contains additional pollutants due to the absence of a required BMP or the failure of a BMP. Discharges that require a NPDES permit that has not been issued or has not been acknowledged by the discharger to be applicable are illegal discharges. Discharges regulated under an applicable NPDES permit are illicit discharges for purposes of this chapter unless compliance with all applicable permit and SWPPP conditions are maintained.
"Impervious cover" or "impervious surface"means constructed or modified surfaces that cannot effectively infiltrate rainfall. The term includes, but is not limited to, building rooftops, pavement, concrete or asphaltic sidewalks, and concrete driveways.
"Impervious surface area"means the ground area covered or sheltered by an impervious surface, measured in plan view (i.e., as if from directly above). For example, the impervious surface area for a pitched roof is equal to the ground area it shelters, rather than the surface area of the roof itself.
"Industrial activity"means manufacturing, processing, or raw materials storage at a commercial, industrial or municipal facility. The term includes, but is not limited to, such manufacturing, processing, or storage in or upon industrial plant yards or immediate access roads used or traveled by carriers of raw materials; manufacture of products, waste material, or by-product creation or storage; material handling; refuse storage or disposal; the application or disposal of processed wastewaters; storage and maintenance of material handling equipment; treatment, storage or disposal of residuals; outdoor shipping and receiving; activities in manufacturing buildings; storage of raw materials and intermediate and finished products; and the ownership, use or control of areas where significant industrial activity has taken place in the past and significant materials remain and are exposed to storm water. Material handling activities include the storage, loading and unloading, transportation, or conveyance of any raw material, intermediate product, finished product, by-product, or waste product.
"Infiltration,"when used as a verb, means the process of percolating storm water or non-storm water into the soil. Infiltration, when used as a noun, is water other than wastewater that enters a sewer system (including sewer service connections and foundation drains) from the ground though such means as defective pipes, pipe joints, connections or manholes.
"Infiltration BMPs" or "infiltration facility"means any structural treatment BMP designed primarily to percolate water into the subsurface, such as an infiltration trench or infiltration basin. An infiltration facility may include filtering prior to or during infiltration. BMPs that infiltrate some water but which are designed primarily to retain water or to treat water, such as retention basins, constructed wetlands, or filtering swales are not infiltration facilities.
"Jurisdictional Runoff Management Program document" or "JRMP document"means a written plan describing the specific jurisdictional runoff management measures and programs that each co-permittee implements to comply with the MS4 Permit and to ensure that storm water pollutant discharges in runoff are reduced to the maximum extent practicable and do not cause or contribute to a violation of water quality standards.
"Land disturbance activity"means any activity that moves soils or substantially alters the preexisting vegetated or man-made cover of any land. This includes, but is not limited to, grading, digging, cutting, scraping, stockpiling or excavating of soil; placement of fill materials; paving, pavement removal, exterior construction; substantial removal of vegetation where soils are disturbed including, but not limited to, removal by clearing or grubbing; or any activity which bares soil or rock or involves streambed alterations or the diversion or piping of any watercourse. Land disturbance activity does not include routine maintenance to maintain original line and grade, hydraulic capacity, or the original purpose of the facility, nor does it include emergency construction activities (i.e., land disturbances) required to protect public health and safety.
"Land owner"means the holder of legal title to the land, and other persons or entities who exercise control over a land development project pursuant to rights granted in a purchase agreement, joint venture agreement, development agreement, or long term lease.
"Low Impact Development" or "LID"means a storm water management and land use development strategy that emphasizes conservation and the use of on-site natural features integrated with engineered, small-scale hydrologic controls to more closely reflect pre-development hydrologic functions.
"Low Impact Development BMPs" or "LID BMPs"include schedules of activities, prohibitions of practices, maintenance procedures, and other management practices to prevent or reduce the pollution of water of the United States through storm water management and land development strategies that emphasize conservation and the use of on-site natural features integrated with engineered, small-scale hydrologic controls to more closely reflect re-development hydrologic functions. LID BMPs may include retention practices that do not allow runoff, such as infiltration, rain water harvesting and reuse, and evapotranspiration. LID BMPs also include flow-through practices such as biofiltration that may have some discharge of storm water following pollutant reduction.
"Maintenance of a BMP"means periodic action taken to maintain the as-designed performance of a BMP, and includes, but is not limited to, repairs to the BMP as necessary, and replacement of the BMP by an equally effective or more effective BMP at the end of its useful life.
"Maximum extent practicable" or "MEP"is an acceptability standard for BMPs. When BMPs are required to meet this standard, the BMPs must be the most effective set of BMPs that are still practicable. A BMP is effective if it prevents, reduces or removes the pollutants that would otherwise be present in runoff due to human activity. A BMP is practicable if: it complies with other regulations as well as storm water regulations; is compatible with the area's land use, character, facilities, and activities; is technically feasible (considering area soil, geography, water resources, and other resources available); is economically feasible; and provides benefits that are reasonable in relation to costs.
"MS4 Permit"refers to RWQCB Order No. R9-2013-0001, NPDES Permit No. CAS0109266, National Pollutant Discharge Elimination System (NPDES) Permit and Waste Discharge Requirements for Discharges from the Municipal Separate Storm Sewer Systems (MS4s) Draining the Watersheds within the San Diego Region, as may be amended.
"Municipal facility"means a facility owned or operated by the city of El Cajon that is used for a governmental purpose. Facilities or municipally owned land that are leased or rented to others to generate municipal revenues are not municipal facilities. The commercial or industrial lessees of such facilities may, however, be subject to this chapter as dischargers.
"Natural drainage"means a natural swale or topographic depression, which gathers and/or conveys runoff to a permanent or intermittent watercourse or water body.
"New development"means land disturbing activities; structural development, including construction or installation of a building or structure; the creation of impervious surfaces; and land subdivision.
"Non-storm water discharge"includes discharges to and from a storm water conveyance system that do not originate from precipitation events. Non-storm water includes illicit discharges and NPDES permitted discharges.
"NPDES Permit"means a National Pollutant Discharge Elimination System (NPDES) permit issued by the United States Environmental Protection Agency, the SWRCB, or the RWQCB. The NPDES is the national program for issuing, modifying, revoking and reissuing, terminating, monitoring and enforcing permits, and imposing and enforcing pretreatment requirements, under sections 307, 318, 402, and 405 of the Clean Water Act.
"Parking lot"means land area or facility for the temporary parking or storage of motor vehicles used personally, or for business or commerce.
"Permittee"means any person or owner to whom a grading permit is issued, or for whom a grading plan is approved, pursuant to chapter
15.64 of this code.
"Pollutant"means any agent that may cause or contribute to the degradation of water quality such that a condition of pollution or contamination is created or aggravated.
"Pollution"as defined in the Porter-Cologne Water Quality Control Act is the "alteration of the quality of the waters of the state by waste, to a degree which unreasonably affects either of the following: (A) The waters for beneficial uses"; or "(B) Facilities which serve these beneficial uses." Pollution may include contamination.
"Pollution prevention"is defined as practices and processes that reduce or eliminate the generation of pollutants, in contract to source control BMPs, treatment control BMPs, erosion and sediment control BMPs or disposal.
"Premises"means any building, lot parcel, land or portion of land whether improved or unimproved.
"Project footprint"means the limits of all grading and ground disturbance, including landscaping, associated with a project.
"Receiving waters"means all waters that are "Waters of the United States," such as surface bodies of water, which directly or indirectly receive discharges from urban runoff conveyance systems, including naturally occurring wetlands, streams (perennial, intermittent, and ephemeral (exhibiting bed, bank, and ordinary high water mark)), creeks, rivers, reservoirs, lakes, lagoons, estuaries, harbors, bays and the Pacific Ocean.
"Redevelopment"means any construction, alteration or improvement at an already developed site that will increase the total impervious surface area of that site, or that involves activities that could expose contaminants to rainfall. Redevelopment can include, but is not limited to, the expansion of building footprints, the addition or replacement of a structure, exterior construction and remodeling, replacement of existing impervious surfaces that are not part of a routine maintenance activity, and other activities that create additional impervious surface. Redevelopment also includes disturbance of one or more acres of land and expected to generate pollutants post construction.
"Restaurant"means, for the purposes of this chapter, a facility that sells prepared foods and drinks for consumption, including stationary lunch counters and refreshment stands selling prepared foods and drinks for immediate consumption (standard industrial classification code 5812).
"Retail gasoline outlet"means a retail gasoline outlet that is 5,000 square feet or more or with a projected average daily traffic of 100 or more vehicles per day.
"Runoff"means all flows in a storm water conveyance system including storm water (wet weather flows) and non-storm water (dry weather flows).
"RWQCB"means the Regional Water Quality Control Board for the San Diego region.
"Sediment"means soils, sand, minerals or other surficial materials eroded and then transported or deposited by the action of wind, water, ice, or gravity. Sediments can increase turbidity, clog fish gills, reduce spawning habitat, lower young aquatic organisms' survival rates, smother bottom dwelling organisms, and suppress aquatic vegetation growth.
"Significant redevelopment"means development that would create, add, or replace at least 5,000 square feet of impervious surfaces on an already developed site that falls under a priority development project category. Significant redevelopment includes, but is not limited to: the expansion of a building footprint; addition to or replacement of a structure; replacement of an impervious surface that is not part of a routine maintenance activity; and land disturbing activities related with structural or impervious surfaces. Replacement of impervious surfaces includes any activity that is not part of a routine maintenance activity where impervious material(s) are removed, exposing underlying soil during construction.
"Site design BMPs"also known as a significant part of low impact development, means any project design feature that reduces the amount of impervious surfaces, disconnects impervious surfaces, reduces creation or severity of potential pollutant sources, and/or reduces the alteration of the project site's natural flow regime. Redevelopment projects that are undertaken to remove pollutant sources (such as existing surface parking lots and other impervious surfaces) or to reduce the need for new roads and other impervious surfaces (as compared to conventional or low-density new development) by incorporating higher densities and/or mixed land uses into the project design, are also considered site design BMPs.
"Source control BMPs" (both structural and non-structural)means land use or site planning practices, or structures that aim to prevent urban runoff pollution by reducing the potential for contamination at the source of pollution. Source control BMPs minimize the contact between pollutants and urban runoff. Examples include roof structures over trash or material storage areas, and berms around fuel dispensing areas.
"State"means the State of California.
"State general industrial storm water permit"means NPDES Permit No. CAS000001, Waste Discharge Requirements for Discharges of Storm Water Associated with Industrial Activities Excluding Construction Activities, and any amendments thereto.
"Stop work order"means an order issued which requires that specifically identified activity or all activity on a site be stopped.
"Storm water"means storm water runoff, snowmelt runoff and surface runoff and drainage. Surface runoff and drainage pertains to runoff and drainage resulting from precipitation events.
"Storm water conveyance system"means a conveyance or system of conveyances (including roads with drainage systems, municipal streets, catch basins, curbs, gutters, ditches, man-made channels, or storm drains): (i) owned or operated by a state, city, town, borough, county, parish, district, association, or other public body (created by or pursuant to state law) having jurisdiction over disposal of sewage, industrial wastes, storm water, or other wastes, including special districts under state law such as a sewer district, flood control district or drainage district, or similar entity, or an Indian tribe or an authorized Indian tribal organization, or designated and approved management agency under section 208 of the Clean Water Act that discharges to waters of the United States; (ii) designated or used for collecting or conveying storm water; (iii) which is not a combined sewer; and (iv) which is not part of the Publicly Owned Treatment Works (POTW) as defined at 40 CFR
122.26.
"Storm water management"means the use of structural or non-structural BMPs that are designed to reduce urban run-off pollutant loads, discharge volumes, and/or peak discharge flow rates or velocities. When applied to the city or another municipality, storm water management also includes planning and programmatic measures.
"Storm water mitigation plan"means a plan, submitted on a city form or in a city-specific format in connection with an application for a city permit or other city approval, identifying the measures that will be used for storm water and non-storm water management during the permitted activity.
"Storm water pollution prevention plan" or "SWPPP"means a document (other than a storm water mitigation plan), which meets the requirements for an SWPPP set out in the state general construction storm water permit or the state general industrial storm water permit. An SWPPP submitted to the city must describe the BMPs to be implemented and other steps to be taken by the discharger to meet the requirements of this chapter.
"Structural BMP"means a BMP that relies on either a physical condition, other than an entirely natural and undisturbed condition, or on a constructed or installed device to reduce or prevent pollutants in storm water discharges and authorized non-storm water discharges. Constructed or enhanced BMPs that depend on natural materials and processes (e.g., constructed drainage swales or buffers, or constructed wetlands) and that require periodic maintenance to function as designed, are structural BMPs. Structural BMPs in place in connection with a land development or redevelopment project to prevent or reduce contamination in storm water and receiving waters, or to prevent or reduce erosion downstream from the project.
"Structural post-construction BMP"means a structural BMP, other than a temporary constructionrelated BMP, put in place in connection with a land development or redevelopment project to prevent or reduce contamination in storm water or receiving waters, or to prevent or reduce erosion downstream from the project. All treatment control BMPs are structural post-construction BMPs.
"SWRCB"means the State Water Resources Control Board.
"Treatment control BMP"means any engineered system designed and constructed to remove pollutants from urban runoff. Pollutant removal is achieved by simple gravity settling of particulate pollutants, filtration, biological uptake, media adsorption or any other physical, biological, or chemical process.
"Total maximum daily loads" or "TMDLs"is defined as the maximum amount of a pollutant that can be discharged into a water body from all sources (point and non-point) and still maintain water quality standards. Under Clean Water Act section 303(d), TMDLs must be developed for all water bodies that do not meet water quality standards after application of technology-based controls.
"Water main"means a potable or recycled water delivery line greater than or equal to four inches in diameter.
"Watercourse"means a permanent or intermittent stream, creek, or other body of water, either natural or improved, which gathers or carries surface water.
"Water quality standards"are defined as the beneficial uses (e.g., swimming, fishing, municipal drinking water supply, etc.) of water and the water quality objectives adopted by the State or the United States Environmental Protection Agency to protect those uses.
"Waters of the state"means any water, surface or underground, including saline waters within the boundaries of the state as defined in section 10350(e) of the Act. The definition of the "waters of the state" is broader than that for the "waters of the United States" in that all water in the state is considered to be "waters of the state" regardless of circumstances or condition.
"Waters of the United States"means water subject to the regulatory jurisdiction of the United States under the Federal Clean Water Act and applicable case law. In general, this includes "navigable" waters, waters tributary to "navigable" waters, and adjacent wetlands.
"Watershed"means a geographical area that drains to a specified point on a water course, usually a confluence of streams or rivers (known as a drainage area, catchment, or river basin).
(Ord. 5026 § 3, 2015)