All words used in this chapter shall have their common definition, as used in context, unless a specific definition is set forth herein. The definitions set forth in this chapter shall control, followed by definitions in Chapter 20.12 POMC, and then the common definition.
Activities.
For the purposes of the critical areas ordinance, "activities" is defined to include land disturbing activities, . . .
Adjacent.
For the purpose of the critical areas ordinance, "adjacent" is defined as the area within 300 feet of a critical area.
"Agricultural practices"
means activities related to vegetation and soil management, such as tilling of soil, control of weeds, control of plant diseases and insect pests, soil maintenance and fertilization as well as animal husbandry.
"Alteration"
means any human-induced action that changes the existing condition of a critical area. Alterations include but are not limited to grading; filling; grubbing; dredging; draining; channelizing; cutting; pruning; limbing or topping; clearing, relocating or removing vegetation, except noxious weeds identified by the Washington Department of Agriculture or the Kitsap County cooperative extension; applying herbicides or pesticides or any hazardous or toxic substance; discharging pollutants, excepting stormwater; grazing domestic animals; paving; construction; application of gravel; modifying for surface water management purposes; or any other human activity that changes the existing vegetation, hydrology, wildlife or wildlife habitat. Alteration does not include walking, passive recreation, fishing or other similar activities.
"Anadromous fish"
means fish whose life cycle includes time spent in both fresh and salt water.
"Aquaculture practices"
means the harvest, culture or farming of food fish, shellfish, or other aquatic plants and animals including fisheries enhancement and the mechanical harvesting of shellfish and hatchery culture.
"Aquifer recharge area"
means those areas overlying aquifer(s) where natural or artificial sources of water can move downward to an aquifer(s).
"Aquifer recharge"
means the process by which water is added to an aquifer. It may occur naturally by the percolation (infiltration) of surface water, precipitation, or snowmelt from the ground surface to a depth where the earth materials are saturated with water. The aquifer recharge can be augmented by "artificial" means through the addition of surface water (e.g., land application of wastewater or stormwater) or by the injection of water into the underground environment (e.g., drainfields and drywells).
"Aquifer susceptibility"
means the ability of the natural system to transmit contaminants to and through the groundwater system.
"Aquifer vulnerability"
means the likelihood that the natural system will transmit contaminants to and through a groundwater system, based on natural geological and hydrogeological characteristics and land use practices.
"Aquifer"
means a saturated body of rock, sand, gravel or other geologic material that is capable of storing, transmitting and yielding water to a well.
"Bank stabilization"
means lake or stream modification including vegetation enhancement, used for the purpose of retarding erosion, protecting channels, and retaining uplands.
"Bench (geologic)"
means a relatively flat and wide landform along a valley wall.
"Best available science"
means scientifically valid information in accordance with WAC 365-195-905, as now or hereafter amended, that is used to develop and implement critical areas policies or regulations.
"Best management practices"
means conservation practices (physical, structural and/or managerial) or systems of practices and management measures that:
(1)
Control soil loss and reduce water quality degradation caused by nutrients, pathogens, bacteria, toxic substances, pesticides, oil and grease, and sediment; and
(2)
Minimize adverse impacts to surface water and groundwater flow, circulation patterns, and to the chemical, physical, and biological characteristics of critical areas.
"Bog"
means a low-nutrient, acidic wetland with organic soils and characteristic bog plants, as described in Washington State Wetland Rating System for Western Washington: 2014 Update (Washington State Department of Ecology Publication No. 14-06-29, Olympia, WA, October 2014).
Conversion Option Harvest Plan (COHP).
(This definition relates to types of forest practices.) "Conversion option harvest plan (COHP)" means a plan for landowners who want to harvest their land but wish to maintain the option for conversion pursuant to WAC 222-20-050. "Conversion" to a use other than commercial timber operation shall mean a bona fide conversion to an active use which is incompatible with timber growing.
"Candidate species (state listed)"
means species under review by the Department of Fish and Wildlife for possible listing as endangered, threatened or sensitive. A species will be considered for state candidate designation if sufficient scientific evidence suggests that its status may meet criteria defined for endangered, threatened, or sensitive in WAC 232-12-297.[1] Currently listed state threatened or state sensitive species may also be designated as a state candidate species if their status is in question. State candidate species will be managed by the Department of Fish and Wildlife, as needed, to ensure the long-term survival of populations in Washington. See the current WDFW Priority Habitats and Species list for Kitsap County for all listed and candidate species.
"City Council"
means the city council of the City of Port Orchard.
"City"
means the City of Port Orchard.
"Clearing"
means the destruction, disturbance or removal of vegetation by physical, mechanical, chemical or other means.
"Compensation"
means replacement of project-induced critical area (e.g., wetland) losses of acreage or functions, including, but not limited to, restoration, creation, or enhancement.
"Creation"
means actions performed to intentionally establish a critical area at a site where it did not formerly exist.
"Critical aquifer recharge areas"
means those land areas which contain hydrogeologic conditions which facilitate aquifer recharge and/or transmitting contaminants to an underlying aquifer.
"Critical area buffer"
means an area of protection around a critical area.
"Critical area protection easement"
means an agreement conveyed through a notice to title, or shown on the face of a plat or site plan, for the purpose of perpetual or long-term conservation.
"Critical areas ordinance" or "CAO"
means this chapter.
"Critical areas"
includes the following areas and ecosystems, as provided in RCW 36.70A.030: (a) wetlands; (b) areas with a critical recharging effect on aquifers used for potable water; (c) fish and wildlife habitat conservation areas; (d) frequently flooded areas; and (e) geologically hazardous areas. "Fish and wildlife habitat conservation areas" does not include such artificial features or constructs as irrigation delivery systems, irrigation infrastructure, irrigation canals, or drainage ditches that lie within the boundaries of and are maintained by a port district or an irrigation district or company.
"Danger trees"
means any tree of any height, dead or alive, identified by a certified arborist that presents a hazard to the public because of rot, root stem or limb damage, lean or any other observable condition created by natural process or manmade activity.
"Development proposal site"
means, for purposes of the critical areas ordinance, the legal boundaries of the parcel or parcels of land on which an applicant has applied for authority from the City of Port Orchard to carry out a development proposal.
"Development"
means the subdivision or platting of land, a use consisting of the construction, reconstruction or exterior alteration of structures, or the construction or reconstruction of residential, commercial, industrial, public, or any other building, building space, or land.
"Draining (related to wetland)"
means any human activity that diverts or reduces wetland groundwater and/or surface water sources.
"Easement" or "critical area protection easement"
for purposes of this chapter means an agreement conveyed through a deed, or shown on the face of a plat or site plan for the purpose of perpetual or long-term conservation.
"Endangered species (state listed)"
means a species native to the state of Washington that is seriously threatened with extinction throughout all or a significant portion of its range within the state. Endangered species are legally designated in WAC 232-12-014.[2]
"Erosion hazard areas"
means land characterized by any of the soil types identified by the Natural Resources Conservation Service as "highly erodible land." This designation pertains to water erosion and not wind erosion. These areas may not be highly erodible until or unless the soil is disturbed by activities such as clearing or grading.
"Excavation"
means removal of earth material.
"Existing and ongoing agriculture"
means those activities conducted within the last five years on lands defined in RCW 84.34.020(2) or defined as agricultural practices in this chapter. For example, the operation and maintenance of existing farm and stock ponds or drainage ditches, operation and maintenance of ditches, irrigation systems including irrigation laterals, canals, or irrigation drainage ditches, changes between agricultural activities, such as rotating crops or grasses used for grazing, and normal maintenance, repair, or operation of existing serviceable structures, facilities, or improved areas; provided, that alteration of the contour of wetlands or streams by leveling or filling other than that which results from normal cultivation or draining of wetlands shall not be considered normal or necessary farming or ranching activities. Activities that bring an area into agricultural use shall not be considered part of an ongoing activity.
"Exotic"
means any species of plant or animal that is not indigenous (native) to an area.
"Extraordinary hardship"
means where the strict application of this chapter and/or other programs adopted to implement the critical areas ordinance by the regulatory authority would prevent all reasonable use of the parcel.
"Farm and agricultural conservation land"
means:
(1)
Land that was previously classified under RCW 84.34.020(2) ("Farm and agricultural land") that no longer meets the criteria of said subsection (2) and that is reclassified under RCW 84.34.020(1) ("Open space land"); or
(2)
Land that is traditional farmland that is not classified under Chapter 84.33 or 84.34 RCW that has not been irrevocably devoted to a use inconsistent with agricultural uses, and that has a high potential of returning to commercial agriculture.
"Farm pond"
means an open-water habitat of less than five acres and not contiguous with a stream, river, lake or marine water created from a non-wetland site in connection with agricultural activities.
"Filling" or "fill"
means a deposit of earth or other natural or manmade material placed by artificial means, including, but not limited to, soil materials, debris, or dredged sediments.
"Floodplain"
means the floodway and associated special flood hazard areas having the potential to flood once every 100 years, or having a one percent chance of being equaled or exceeded in any given year.
"Floodway"
means the channel of a river or other watercourse and the adjacent land areas that must be reserved in order to discharge the base flood without cumulatively increasing the water surface elevation more than one foot.
"Forage fish"
means anchovy, herring, sand lance and smelt.
"Frequently flooded areas"
means all City of Port Orchard lands, shorelands and waters which are within the 100-year floodplain (floodway) as designated by the Federal Emergency Management Agency in flood insurance rate and boundary maps (FIRM).
"Geologic hazard areas"
means areas that, because of their susceptibility to erosion, sliding, earthquake, or other geological events, are not suited to siting commercial, residential or industrial development consistent with public health or safety concerns.
"Geologist"
means a person who is licensed in the state of Washington and meets all experience and training requirements in accordance with Chapter 308-15 WAC, as now or hereafter amended.
"Geotechnical report and geological report"
means a study of potential site development impacts related to retention of natural vegetation, soil characteristics, geology, drainage, groundwater discharge, and engineering recommendations relating to slope and structural stability. The geotechnical report shall be prepared by or in conjunction with a licensed geotechnical engineer meeting the minimum qualifications as defined by this chapter. Geological reports may contain the above information with the exception of engineering recommendations, and may be prepared by a geologist (see Article VIII of this chapter, Special Reports, for minimum qualifications).
"Habitat management plan"
means a report prepared by a professional wildlife biologist or fisheries biologist which discusses and evaluates critical fish and wildlife habitat functions and evaluates the measures necessary to maintain, enhance and improve habitat conservation on a proposed development site.
"Habitat of local importance"
means a seasonal range or habitat element with which a given species has a primary association, and which, if altered, may reduce the likelihood that the species will maintain and reproduce over the long term. These might include areas of high relative density or species richness, breeding habitat, winter range, and movement corridors. These might also include habitats that are of limited availability or areas of high vulnerability to alteration, such as cliffs, talus, and wetlands.
"Habitat"
means the specific areas or environments in which a particular type of plant or animal lives. An organism's primary and secondary habitat provides all the basic requirements for life of the organism.
"Hazardous substance(s)"
means any liquid, solid, gas or sludge, including any materials, substance, product, commodity or waste, regardless of quantity, that exhibits any of the characteristics or criteria of hazardous waste, including waste oil and petroleum products.
"Hazardous tree"
means a tree that poses a threat to life, property, or public safety.
"Hydric soils"
means a soil that formed under conditions of saturation, flooding, or ponding long enough during the growing season to develop anaerobic conditions in the upper part.
"Hydrologist" or "hydrogeologist"
means a person who has a Bachelor of Science degree in geologic sciences with an emphasis in hydrogeology or related field from an accredited college or university and has a minimum of five years' experience in groundwater investigations, modeling and remediation.
"Hydrophytes"
means those plants capable of growing in water or on a substrate that is at least periodically deficient in oxygen as a result of excessive water content.
"Infiltration rate"
means a general description of how quickly or slowly water travels through a particular soil type.
"Investigation"
means work necessary for land use application submittals such as surveys, soil logs, percolation tests or other related activities.
"Landslide hazard areas"
means areas potentially subject to risk of mass movement due to a combination of geologic, topographic, and hydrologic factors.
"Liquefaction"
means a process in which a water-saturated soil, upon shaking, suddenly loses strength and behaves as a fluid (see Article III of this chapter, Wetlands).
"Lot"
means a fractional part of legally divided lands having fixed boundaries, being of sufficient area and dimension to meet minimum zoning requirements for width and area. The term shall include tracts or parcels. For purposes of this code, adjoining lots under common ownership, which were created without subdivision or short subdivision approval from applicable city or county governments, shall be considered as one lot and subject to the regulations contained herein. The terms of this section shall apply regardless of whether the individual adjoining lot meets current zoning requirements.
"Low impact activities"
means activities that do not require a development permit and/or do not result in any alteration of hydrology or adversely impact the environment.
"Major new development"
means any new development, as defined below, within or within 300 feet of a critical area:
(2)
Clearing, grading or filling one acre or greater in area;
(3)
Any new commercial development in excess of 750 square feet in area authorized in the City of Port Orchard Unified Development Code;
(4)
Development requiring conditional use or special use permits required under the City of Port Orchard Unified Development Code;
(5)
Planned residential developments authorized under the City of Port Orchard Unified Development Code;
(6)
Any structure footprint in excess of 4,000 square feet in area, except for single-family residences;
(7)
Any residential development except as exempted in POMC § 20.162.036.
"Minor new development"
means any new development, as defined below, within or within 300 feet of a critical area:
(1)
Normal maintenance or repair of existing structures or developments, including damage by accident, fire or the elements;
(2)
Emergency construction necessary to protect property from damage by the elements;
(3)
Construction and practices normal or necessary for farming, irrigation, and ranching activities, including agricultural service roads and utilities, construction of an agricultural building less than 3,000 square feet in size used exclusively for agricultural activities and the construction and maintenance of irrigation structures including but not limited to head gates, pumping facilities and irrigation channels; provided, that a feedlot of any size, all processing plants, other activities of a commercial nature, alteration of the contour of wetlands or streams by leveling or filling other than that which results from normal cultivation shall not be considered normal or necessary farming or ranching activities;
(4)
Construction of one single-family residence and normal appurtenances necessarily connected to the use and enjoyment of a single-family residence and may include a garage; deck; driveway; utilities; fences; grading less than one acre in area; and home occupations pursuant to the City of Port Orchard Unified Development Code, as now or hereafter amended;
(5)
Construction of a dock, designed for pleasure craft only, for the private noncommercial use of the owner, lessee, or contract purchaser of a single-family residence;
(6)
Operation and maintenance of any system of dikes, ditches, drains, or other facilities which legally existed prior to the date of adoption of the critical areas ordinance, and which were created, developed, or utilized primarily as a part of an agricultural drainage or diking system;
(7)
Development authorized by POMC § 20.162.036, Exemptions, and/or by POMC § 20.162.042, Nonconforming – Existing structures.
"Mitigation"
means avoiding, minimizing or compensating for adverse critical area impacts. Mitigation includes the following specific categories:
(1)
Mitigation, compensatory: replacing project-induced critical area losses or impacts, including, but not limited to, restoration, creation, or enhancement.
(2)
Mitigation, creation: mitigation performed to intentionally establish a critical area (e.g., wetland) at a site where it does not currently exist.
(3)
Mitigation, enhancement: mitigation performed to improve the condition of existing degraded critical areas (e.g., wetlands) so that the functions they provide are of a higher quality.
(4)
Mitigation, restoration: mitigation performed to reestablish a critical area (e.g., wetland), or its functional characteristics and processes, which have been lost by alterations, activities or catastrophic events within an area which no longer meets the definition of a critical area.
"Native vegetation"
means vegetation indigenous to the Puget Sound coastal lowlands.
"Nonconforming use or structure"
means a use of land or structure which was lawfully established or built and which has been lawfully continued but which does not conform to the current regulations of the zone in which it is located as established by the City of Port Orchard Unified Development Code relating to repair of damaged structures, this chapter, or amendments thereto.
"Normal maintenance"
includes those usual acts to prevent a decline, lapse or cessation from a lawfully established condition. Normal maintenance includes removing debris from and cutting or manual removal of vegetation in crossing and bridge areas. Normal maintenance does not include:
(1)
Use of fertilizer or pesticide application in wetlands, fish and wildlife habitat conservation areas, or their buffers;
(2)
Redigging ditches in wetlands or their buffers to expand the depth and width beyond the original ditch dimensions;
(3)
Redigging existing drainage ditches in order to drain wetlands on lands not classified as existing and ongoing agriculture under POMC 20.162.036, Exemptions.
"Open space"
is land used for outdoor recreation, critical area or resource land protection, amenity, safety or buffer, including structures incidental to these open space uses, but excluding yards required by this chapter and land occupied by dwellings or impervious surfaces not related to the open space uses.
"Ordinary high water mark"
means that mark that will be found by examining the bed and banks and ascertaining where the presence and action of waters are so common and usual, and so long continued in all ordinary years, as to mark upon the soil a character distinct from that of the abutting upland, in respect to vegetation as that condition exists on June 1, 1971, as it may naturally change thereafter, or as it may change thereafter in accordance with permits issued by a local government or the department; provided, that in any area where the ordinary high water mark cannot be found, the ordinary high water mark adjoining salt water shall be the line of mean higher high tide and the ordinary high water mark adjoining fresh water shall be the line of mean high water.
"Organic debris"
includes, but is not limited to, stumps, logs, branches, leaves and other organic materials.
"Out-of-kind compensation"
means to replace a critical area (e.g., wetland) with a substitute critical area (e.g., wetland) whose characteristics do not closely approximate those destroyed or degraded by a regulated activity. It does not refer to replacement "out-of-category," such as replacement of wetland loss with new stream segments.
"Park"
means a site designed or developed for recreational use by the public, including but not limited to: indoor facilities, such as gymnasiums, swimming pools, or activity centers; and outdoor facilities, such as playfields, swimming pools, courts, playgrounds, fishing and boating access areas, or picnicking and other group activity areas, and areas and trails for hikers, equestrians, or bicyclists. Also see POMC §§ 20.39.315 and 20.39.340.
"Permit"
means any development, variance, conditional use permit, or revision authorized under Chapter 90.58 RCW or city regulations.
"Piped stream"
means those sections of streams as defined in this chapter that have been legally piped during past land use activities. Piped streams do not include those sections of piped infrastructure that conveys water from irrigation ditches, canals, storm or surface water runoff devices or other artificial watercourses unless they are used by fish or used to convey streams naturally occurring prior to construction.
"Planned residential development (PRD)"
means development specifically approved by the City and characterized by comprehensive planning of the total project, though it may contain a variety of individual lots and/or uses. This type of project may include clustering of structures and preservation of open space with a number of flexible and customized design features specific to the natural features of the property and the uses sought to be implemented. Specific lot area and setback requirements are reduced or deleted in order to allow maximization of open space, critical areas and other components of the project.
"Practicable alternative"
means an alternative that is available and capable of being carried out after taking into consideration cost, existing technology, and logistics in light of overall project purposes, and having less impacts to critical areas. It may include an area not owned by the applicant, which could reasonably have been or be obtained, utilized, expanded, or managed in order to fulfill the basic purpose of the proposed activity.
"Priority habitat"
means a seasonal range or habitat element with which a given species has a primary association, and which, if altered, may reduce the likelihood that the species will maintain and reproduce over the long term. These might include areas of high relative density or species richness; breeding, nesting, feeding, foraging, and migratory habitat; winter range, movement corridors; and/or habitats that are of limited availability or high vulnerability to alteration. Priority habitats are established by the Washington State Department of Fish and Wildlife within their priority habitats and species database. Where possible, priority habitats and other wetland and fish and wildlife habitat areas should be connected with wildlife corridors. Priority habitats shall be confirmed by a qualified biologist in a special report in accordance with Article VIII of this chapter.
"Priority species"
include those which are state listed endangered, threatened, sensitive, candidate and monitored species as well as priority game and nongame species. Priority species are established, in part, by the Washington Department of Fish and Wildlife within their priority habitats and species database.
"Public facilities"
means facilities which are owned, operated and maintained by a public agency.
"Public project of significant importance"
means a project funded by a public agency, department or jurisdiction which is found to be in the best interests of the citizens of the city of Port Orchard and is so declared by the Port Orchard city council.
"Public utility"
means a business or service, either governmental or having appropriate approval from the state, which is engaged in regularly supplying the public with some commodity or service which is of public consequence and need, such as electricity, gas, sewer and/or wastewater, water, transportation or communications.
"Ravine"
means a v-shaped landform generally having little to no floodplain and normally containing steep slopes, which is deeper than 10 vertical feet as measured from the centerline of the ravine to the top of the slope. Ravines are typically created by the wearing action of streams.
"Reasonable alternative"
means an activity that could feasibly attain or approximate a proposal's objectives, but at a lower environmental cost or decreased level of environmental degradation.
Reasonable Use.
A property is deprived of all "reasonable use" when the owner can realize no reasonable return on the property or make any productive use of the property. "Reasonable return" does not mean a reduction in value of the land, or a lack of a profit on the purchase and sale of the property, but rather, where there can be no beneficial use of the property; and which is attributable to the implementation of the critical areas ordinance.
"Reasonable use exception"
means the process by which the city determines allowable use of a property which cannot conform to the requirements set forth in this chapter, including the variance criteria. See POMC § 20.162.038 for reasonable use exception procedures.
"Refuse"
means material placed in a critical area or its buffer without permission from any legal authority. Refuse includes, but is not limited to, stumps, wood and other organic debris, as well as tires, automobiles, construction and household refuse. This does not include large woody debris used with an approved enhancement plan.
"Regulated use or activity"
means any development proposal which includes or directly affects a critical area or its buffer or occurs within 300 feet of a critical area.
"Rehabilitation"
means the manipulation of the physical, chemical or biological characteristics of a site with the goal of repairing natural or historical functions and processes of a degraded wetland. Activities could involve breaching a dike to reconnect wetlands to a floodplain, restoring tidal influence to a wetland, or breaking drain tiles and plugging drainage ditches.
"Restoration"
means the return of a critical area (e.g., stream or wetland) to a state in which its functions and values approach its unaltered state as closely as possible.
"Right-of-way" or "ROW"
means a strip of land platted, dedicated, condemned or established by prescription, or otherwise legally established, for the use of pedestrians, vehicles or utilities.
"Riparian management zone"
means the designated buffer area contiguous or adjacent to a stream that is required for the continued maintenance, function, and structural stability of the stream. Functions of the buffer include shading, uptake of nutrients, stabilization of banks, protection from intrusion, large wood delivery, pollution removal, or maintenance of wildlife. These generally occur adjacent to water bodies where specific measures are needed to protect fish and wildlife habitat needs and watershed functions.
"Salmonid"
means a member of the fish family Salmonidae. This family includes chinook, coho, chum, sockeye and pink salmon; rainbow, steelhead, cutthroat, brook and brown trout; and Dolly Varden char, kokanee, and whitefish.
"Sensitive species (state listed)"
means a species, native to the state of Washington, that is vulnerable or declining and is likely to become endangered or threatened in a significant portion of its range within the state without cooperative management or the removal of threats. Sensitive species are legally designated in WAC 232-12-011.[3]
"Single-family dwelling"
means a building or structure which is intended or designed to be used, rented, leased, let or hired out to be occupied for living purposes by one family and including accessory structures and improvements.
"Special flood hazard areas"
means the area adjoining the floodway which is subject to a one percent or greater chance of flooding in any year, as determined by engineering studies acceptable to the city of Port Orchard. The coastal high hazard areas are included within special flood hazard areas.
"Species of concern"
means species that have been classified as endangered, threatened, sensitive, candidate, or monitored by the Washington State Department of Fish and Wildlife.
"State Environmental Policy Act" or "SEPA"
means the state environmental law (Chapter 43.21C RCW) and rules (Chapter 197-11 WAC) as implemented by the city of Port Orchard.
"Streams"
means those areas in the City of Port Orchard where the surface water flow is sufficient to produce a defined channel or bed. A defined channel or bed is an area which demonstrates clear evidence of the passage of water and includes but is not limited to bedrock channels, gravel beds, sand and silt beds and defined channel swales. The channel or bed need not contain water year-round. This definition is not meant to include irrigation ditches, canals, storm or surface water runoff devices or other artificial watercourses unless they are used by fish or used to convey streams naturally occurring prior to construction.
"Susceptibility (groundwater)"
means the potential an aquifer has for groundwater contamination, based on factors which include but are not limited to depth of aquifer, soil permeability, topography, hydraulic gradient and conductivity, and precipitation.
"Swale"
means a shallow drainage conveyance with relatively gentle side slopes, generally with flow depths less than one foot.
"Threatened species (state listed)"
means a species, native to the state of Washington, that is likely to become endangered in the foreseeable future throughout a significant portion of its range within the state without cooperative management or the removal of threats. Threatened species are legally designated in WAC 232-12-011.[4]
"Toe of slope"
means a distinct topographic break in a slope. Where no distinct break exists, this point shall be the lowermost limit of the landslide hazard area as defined and classified in this section.
"Top of slope"
means a distinct topographic break in a slope. Where no distinct break in a slope exists, this point shall be the uppermost limit of the geologically hazardous area as defined and classified in this section.
"Unavoidable and necessary impacts"
means impacts to a critical area that remain after an applicant proposing to alter such an area has demonstrated that no alternative exists for the proposed project.
"Utilities"
means facilities and/or structures which produce or carry electric power, gas, sewage, water, communications, oil, publicly maintained stormwater facilities, etc.
"Utility corridor"
means areas identified in the comprehensive plan for utility lines, including electric, gas, sewer, water lines; and public right-of-way and other dedicated utility right-of-way on which one or more utility lines are currently located. The term "other dedicated utility right-of-way" means ownership, easements, permits, licenses or other authorizations affording utilities the right to operate and maintain utility facilities on private property.
"Vulnerability (groundwater)"
means the likelihood that an aquifer could be contaminated, based on both susceptibility and land use. High vulnerability generally means an aquifer, which has high susceptibility to contamination, and is located in a land use area conducive to contamination, such as industrial or residential. High vulnerability includes high potential areas for overdrafting and/or saltwater intrusion.
"Wetland determination"
means an on-site determination as to whether a wetland exists on a specific parcel, conditioned by either a wetland specialist as defined in this Chapter, or the department. A wetland determination does not require a formal delineation.
"Wetland edge"
means the line delineating the outer edge of a wetland established in Article III of this chapter.
"Wetland"
means those areas that are inundated or saturated by surface or groundwater at a frequency and duration sufficient to support, and that under normal circumstances do support, a prevalence of vegetation typically adapted for life in saturated soil conditions. Wetlands generally include swamps, estuaries, marshes, bogs, and similar areas. Wetlands do not include those artificial wetlands intentionally created from non-wetland sites, including, but not limited to, irrigation and drainage ditches, grass-lined swales, canals, detention facilities, wastewater treatment facilities, farm ponds, and landscape amenities, or those wetlands created after July 1, 1990, that were unintentionally created as a result of the construction of a road, street, or highway. Wetlands may include those artificial wetlands intentionally created from non-wetland areas created to mitigate conversion of wetlands.
"Wetlands of regional significance"
means those regulated wetlands determined by the department, or otherwise determined by the State or another governing body with jurisdiction, to have characteristics of exceptional resource value which should be afforded the highest levels of protection.
"Wetlands report"
means a wetland delineation, characterization, rating and analysis of potential impacts to wetlands consistent with applicable provisions of Article III of this chapter.
"Wetlands specialist"
means a person who has earned a bachelor's degree in biological sciences with specific course work concerning the functions and values of wetlands from an accredited college or university with a minimum of two years of related work experience; or a qualified consultant or professional person who has equivalent education and training or with equivalent experience acceptable to the department.
"Wetlands, isolated"
means a wetland that is based on its geographic isolation, ecological isolation, or hydrologic isolation. Isolated wetlands are defined by a very specific type of hydrologic isolation – they do not have a surface outlet by which water leaves the wetland, even seasonally, to another water body. Isolated wetlands can also be sloped wetlands where surface water, if present, reenters the shallow groundwater zone at the base of the wetland and is not linked via surface flows to a downstream water body. Any project involving filling or altering a wetland that meets this definition of isolated wetland is subject to regulation by the State Department of Ecology under the Water Pollution Control Act (Chapter 90.48 RCW), in addition to the provisions in this chapter. An isolated wetland may also be regulated by the U.S. Army Corps of Engineers under the Clean Water Act. Dredge or fill of a federally regulated wetland is regulated by the U.S. Army Corps of Engineers under the Clean Water Act and altering a federally regulated wetland may require federal review.
"Wetpond"
means an artificial water body constructed as a part of a surface water management system.
"Wildlife biologist"
means a person who has earned a minimum of a bachelor's degree in wildlife biology or related field of study and has a minimum of five years of field experience in wildlife biology and habitat evaluation.
"Wildlife corridor"
means a relatively undisturbed, vegetated corridor at least 100 feet wide, protected through a conservation easement or other legal instrument, that connects a protected wetland or fish and wildlife habitat area with a priority habitat as defined in this section.
"Wildlife nesting structure"
means a structure erected for the sole purpose of providing a wildlife nesting site.
(Ord. 018-25, 11/18/2025)