For the purpose of this title, the following definitions shall apply:
"Action"means any grading, clearing, filling, construction, dredging, removal of trees or use on a piece of property. Action refers to process(es) performed by the developer to the physical environment.
"Activity"means any application for the following actions: building permit creating additional habitable space in a residential structure as defined by the Uniform Building Code; building permit for a nonresidential structure; a land use review or other similar discretionary review.
"Alteration"means any human-induced change in an existing condition of a critical area or its buffer. Alterations include, but are not limited to, clearing, grubbing, grading, filling, channelizing, dredging, clearing (vegetation), construction, compaction, excavation, or any other activity that changes the character of the critical area. Alteration refers to the state of the physical environment either before, during or after action(s) taken by a developer.
"Anadromous fish"means fish that spawn and rear in freshwater and mature in the marine (salt water) environment.
"Applicant"means a person, party, firm, corporation, or other legal entity who files an application for approval under this title and who is either the owner of the land on which that proposed activity would be located, a contract vendee, or lessee of the land, the person who would actually control and direct the proposed activity, or the authorized agent of such a person.
"Aquifer"means a geological formation, group of formations, or part of a formation that is capable of yielding a significant amount of water to a well or spring.
"Aquifer recharge area"means areas that, due to the presence of certain soils, geology, and surface water, act to recharge groundwater by percolation.
"Best available science"means current scientific information used in the process to designate, protect, or restore critical areas, that is derived from a valid scientific process as defined by WAC
365-195-900 through
365-195-925. Sources of best available science are included in Citations of Recommended Sources of Best Available Science for Designating and Protecting Critical Areas published by the State Office of Community, Trade and Economic Development, as written or hereafter amended.
"Best management practices (BMPs)"mean physical, structural, and/or managerial practices, that when used singly or in combination, prevent or reduce water pollution, erosion, groundwater contamination, slope instability and similar impacts of construction, development and other actions. Source control BMPs include those which keep the pollutant from ever coming in contact with stormwater, and stormwater treatment BMPs include those which consist of various methods of treating stormwater. BMPs could include, but are not limited to, use of hay bales and plastic coverings to reduce erosion, education programs for employees regarding the use and disposal of chemicals, signage for customers regarding use of gasoline fueling facilities, and use of grass-lined swales to reduce pollutants in stormwater.
"Buffer" or "buffer zone"means an area that is contiguous to and protects a critical area which is required for the continued maintenance, functioning, and/or structural stability of a critical area.
"Building official"means the city staff person responsible for the administration of the International Building Code or his or her designee.
"Clearing"means the removal of vegetative material such as timber, stumps, brush, sod, etc., that does not require reforestation per an approved forest practices application/notification from the Department of Natural Resources.
"Compensatory mitigation"means replacing, restoring or rehabilitating streams, wetlands, wetland functions and other aquatic resources for the purpose of offsetting unavoidable adverse impacts after all appropriate avoidance and minimization measures have been determined unfeasible.
"Conservation easement"means a legal restriction placed on a piece of property to protect the resources (natural or manmade) associated with the parcel. It restricts the type and amount of activities that can take place on a parcel of land. Easements are recorded on the property deed and are held in trust by a conservation easement holder such as a land trust or government agency. The holder polices the terms of the easement for the duration of its existence, which is usually into perpetuity.
"Contaminant"means any chemical, physical, biological or radiological substance that does not occur naturally or occurs at concentrations and duration as to be injurious to human health or welfare or shown to be ecologically damaging.
"Critical areas"are those areas established as wetlands, flood hazard areas, fish and wildlife habitat areas, landslide hazard areas, and critical aquifer recharge areas.
"Deed restriction"means clauses in a deed limiting the future uses of the property. Deed restrictions may impose a vast variety of limitations and conditions. For example, for a compensatory mitigation site, a deed restriction may limit the allowed activities on the site based on the goals and objectives of the site. If the site is primarily for wildlife habitat, human access may be restricted.
"Development"means any building, construction, renovation, mining, extraction, or drilling activity or operation; any material change in the use or appearance of any structure or in the land itself; the division of land into parcels; any change in the intensity or use of land, such as an increase in the number of dwelling units in a structure or a change to a commercial or industrial use from a less intensive use; any activity that alters or impacts the functions of a shore, river, stream, lake, pond, canal, woodlands, wetland, endangered species habitat, aquifer, floodplain, steep slope or other environmentally sensitive area. Development activity does not include the following activities: (1) interior building improvements; (2) exterior structure maintenance activities, including painting and roofing; (3) routine landscape maintenance of established, ornamental landscaping, such as lawn mowing, pruning, and weeding; (4) maintenance of the following existing facilities that does not expand the affected area: septic tanks (routine cleaning); wells; individual utility service connections; and individual cemetery plots in established cemeteries.
"Director"means the director of the city of Centralia department of community development or his or her designee.
"Emergent wetland"means a regulated wetland with at least thirty percent of the surface area covered by erect, rooted, herbaceous vegetation as the uppermost vegetative strata.
"Existing and ongoing agriculture"includes those activities conducted on lands defined in RCW
84.34.020(2), and those activities involved in the production of crops or livestock, for example, the operation and maintenance of farm and stock ponds or drainage ditches, operation and maintenance of existing ditches, irrigation systems including irrigation laterals, canals, or irrigation drainage ditches, changes between agricultural activities, and normal maintenance, repair, or operation of existing serviceable structures, facilities, or improved areas, and the installation of new drainage ditches that are an integral part of an ongoing agricultural practice. Activities which bring an area into agricultural use are not part of an ongoing operation. An operation ceases to be ongoing when the area on which it is conducted is converted to a nonagricultural use or has lain idle for more than five years, unless the idle land is registered in a federal or state soils conservation program, or unless the activity is maintenance of irrigation ditches, laterals, canals, or drainage ditches related to an existing and ongoing agricultural activity. Forest practices are not included in this definition.
"Exotic"means any species of plants or animals that are not native to the planning area.
"Extraordinary hardship"means strict application of this chapter and/or programs adopted to implement this chapter by the city council would prevent all reasonable economic use of the parcel.
"Facility"means all structures, contiguous land, appurtenances, and other improvements on the land used for recycling, reusing, reclaiming, transferring, storing, treating, disposing of, or otherwise handling a hazardous substance. Use of the term "facility" includes underground and aboveground tanks, and operations which handle, use, dispose of, or store hazardous substances.
"Federally listed species"means species of fish or wildlife listed as threatened or endangered under the federal Endangered Species Act (ESA), species proposed for listing under the ESA, and candidate species for listing.
"Financial guarantee"means a letter of credit, certified bond, assignment of funds or other instrument acceptable to the city to insure the satisfactory compliance with conditions or standards of this title.
"Footprint"means the area of a building site bounded by foundation walls or equivalent to the area of the site covered by structures if no foundation walls are present.
"Forested wetland"means a regulated wetland with at least twenty percent area coverage by woody vegetation greater than 20 feet in height. Woody vegetation (i.e., trees) must be rooted, either entirely or in part, within the wetland.
"Functions," "beneficial functions," or "functions and values"means the beneficial roles served by critical areas including, but not limited to, water quality protection and enhancement, fish and wildlife habitat, food chain support, flood storage, conveyance and attenuation, groundwater recharge and discharge, erosion control, wave attenuation, historical and archaeological and aesthetic value protection, and recreation. These beneficial roles are not listed in order of priority.
"Grading"means excavation, filling, or any combination thereof. Excavation and grading is governed by the International Building Code (IBC).
"Groundwater"means all waters that exist beneath the land surface or beneath the bed of any stream, lake or reservoir, or other body of surface water.
"Hazardous substance(s) or material(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; and including waste oil and petroleum products as defined in WAC
173-303-090 or
173-303-100.
"Hazardous substance processing or handling"means the use, storage, manufacture, or other land use activity involving hazardous substances, but does not include individually packaged household consumer products or quantities of hazardous substances of less than five gallons in volume per container. Hazardous substances shall not be disposed of on site unless in compliance with Dangerous Waste Regulations, Chapter
173-303 WAC, and any pertinent local ordinances, such as sewer discharge standards.
"Hazardous waste"means and includes all dangerous waste and extremely hazardous waste as designated pursuant to Chapter
70.105 RCW and Chapter
173-303 WAC.
"Hazardous waste treatment and storage facility"means a facility that treats and stores hazardous waste and is authorized pursuant to Chapter
70.105 RCW and Chapter
173-303 WAC. It includes all contiguous land and structures used for recycling, reusing, reclaiming, transferring, storing, treating, or disposing of hazardous waste. Treatment includes using physical, chemical, or biological processing of hazardous wastes to make such waste nondangerous or less dangerous and safer for transport, amenable for energy or material resource recovery. Storage includes the holding of waste for a temporary period but not the accumulation of waste on the site of generation as long as the storage complies with applicable state requirements.
"High quality wetlands"are those regulated wetlands which meet the following criteria:
1. Limited, or no, human alteration of wetland structure and functions including topography, water quality, hydrology, and vegetation;
2. If the wetland has been historically altered, evidence that wetland structure and functions have largely recovered to pre-alteration conditions; and
3. The cover and frequency of exotic plant species does not exceed twenty percent of the surface area of the wetland.
"Hydric soil"means a soil that is saturated, flooded or ponded long enough during the growing season to develop anaerobic conditions in the upper horizon(s). The presence of hydric soil shall be determined following the methods described in the Federal Manual for Identifying and Delineating Jurisdictional Wetlands and the appropriate regional supplements, as amended.
"Hydrologically distinct wetlands"means those regulated wetlands which:
1. Are outside of and not contiguous to any one-hundred-year floodplain of a lake, river, or stream; and
2. Have no contiguous hydric soil or hydrophytic vegetation between the wetland and any surface water.
"Hydrophytic vegetation"means macrophytic plant life growing in water or on a substrate that is at least periodically deficient in oxygen as a result of excessive water content. The presence of hydrophytic vegetation shall be determined following the methods described in the adopted federal wetland delineation manual and the appropriate regional supplements, as amended.
"In-kind compensation"means to replace wetlands with substitute wetlands whose characteristics closely approximate those destroyed or degraded by a regulated activity. It does not mean replacement "in-category."
"Landslide area"means those areas susceptible to disintegration or collapse due to combinations of bedrock, soil, slope gradient, slope aspect, hydrology, and other identified factors.
"Mine hazard areas"means areas that are underlain by, adjacent to, or affected by mine workings such as adits, gangways, tunnels, drifts, or airshafts, and those areas of probable sinkholes, gas releases, or subsidence due to mine workings. Factors that should be considered include: proximity to development, depth from ground surface to the mine working, and geologic material.
"Mitigation"means avoiding, minimizing, or compensating for adverse critical areas impacts. Mitigation, in the following sequential order of preference, is:
1. Avoiding the impact altogether by not taking a certain action or parts of an action;
2. Minimizing impacts by limiting the degree or magnitude of the action and its implementation by using appropriate technology, or by taking affirmative steps, such as project redesign, relocation, or timing, to avoid or reduce impacts;
3. Rectifying the impact to wetlands, critical aquifer recharge areas, and habitat conservation areas by repairing, rehabilitating, or restoring the affected environment to the conditions existing at the time of the initiation of the project;
4. Minimizing or eliminating the hazard by restoring or stabilizing the hazard area through engineered or other methods, provided the engineered method creates the minimum disturbance necessary to mitigate the action, and the method does not adversely impact categories of critical areas other than those being mitigated;
5. Reducing or eliminating the impact or hazard over time by preservation and maintenance operations during the life of the action;
6. Compensating for the impact to wetlands, critical aquifer recharge areas, and habitat conservation areas by replacing, enhancing, or providing substitute resources or environments; and
7. Monitoring the hazard or other required mitigation and taking remedial action when necessary.
"Nonexempt activity"means any activity which is not exempted from the development standards of the critical area chapters.
"Off-site compensation"means to replace wetlands away from the site on which a wetland has been impacted by a regulated activity.
"On-site compensation"means to replace wetlands at or adjacent to the site on which a wetland has been impacted by a regulated activity.
"Out-of-kind compensation"means to replace wetlands with substitute wetlands whose characteristics do not closely approximate those destroyed or degraded by a regulated activity. It does not refer to replacement "out-of-category."
"Practical alternative"means an alternative that is available and capable of being carried out after taking into consideration costs, existing technology, and logistics in light of overall project purposes, and having less impacts to regulated wetlands.
"Primary association"means use of a habitat by a species for rearing young, roosting, breeding, or foraging on a regular basis during the appropriate season. Primary association for fish shall include all aquatic environments in which they reside, as well as riparian environments necessary to support the formation and function of the aquatic environment.
"Priority habitats"means a habitat type or elements with unique or significant value to one or more species as classified by the Washington State Department of Fish and Wildlife. A priority habitat may consist of a unique vegetation type or dominant plant species, a described successional state, or a specific structural element.
"Priority species"means those species that are of concern due to their population status and their sensitivity to habitat manipulation. Priority species include those which are state listed endangered, threatened and sensitive species.
"Qualified professional"means a person with experience and training in the pertinent scientific discipline, and who is a qualified scientific expert with expertise appropriate for the relevant critical area subject in accordance with WAC
365-195-905(4). A qualified professional must have obtained a B.S. or B.A. or equivalent degree in biology, engineering, environmental studies, fisheries, geomorphology, or related field, and five years of related work experience.
1. A qualified professional for habitats must have a degree in biology and professional experience related to the subject species.
2. A qualified professional for wetlands must be a certified professional wetland scientist or a noncertified professional wetland scientist with a minimum of five years experience in the field of wetland science and with experience preparing wetland reports.
3. A qualified professional for a geological hazard must be a professional civil or geotechnical engineer with experience in the field, or geologist, licensed in the state of Washington.
4. A qualified professional for critical aquifer recharge areas means a hydrogeologist, geologist, engineer, or other scientist with experience in preparing hydrogeologic assessments.
"Repair or maintenance"means an activity that restores the character, scope, size, and design of a serviceable area, structure, or land use to its previously authorized and undamaged condition. Activities that change the character, size, or scope of a project beyond the original design and drain, dredge, fill, flood, or otherwise alter additional regulated wetlands are not included in this definition.
"Restoration"means actions performed to reestablish wetland 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 wetland.
"Riparian habitat"means areas adjacent to aquatic systems with flowing water that contain elements of both aquatic and terrestrial ecosystems that mutually influence each other. The width of these areas extends to that portion of the terrestrial landscape that directly influences the aquatic ecosystem by providing shade, fine or large woody material, nutrients, organic and inorganic debris, terrestrial insects, or habitat for riparian-associated wildlife.
"Scrub-shrub wetland"means a regulated wetland with at least thirty percent of its surface area covered by woody vegetation less than twenty feet in height as the uppermost strata.
"Section 404 permit"means a permit issued by the U.S. Army Corps of Engineers for the placement of dredge or fill material or clearing in waters of the United States, including wetlands, in accordance with 33 USC Section
1344. Section 404 permits may also be for endangered species consultation. They require a consultation under Section 7 of the Federal Endangered Species Act.
"Shorelands or shoreland areas"means those lands extending landward for two hundred feet in all directions as measured on a horizontal plane from the ordinary high water mark; floodways and contiguous floodplain areas landward two hundred feet from such floodways; and all wetlands and river deltas associated with the streams, lakes, and tidal waters which are subject to the provisions of Chapter
90.58 RCW.
"Shorelines"means all of the water areas of the state as defined in RCW
90.58.030, including reservoirs and their associated shorelands, together with the lands underlying them except:
1. Shorelines of statewide significance;
2. Shorelines on segments of streams upstream of a point where the mean annual flow is twenty cubic feet per second or less and the wetlands associated with such upstream segments; and
3. Shorelines on lakes less than twenty acres in size and wetlands associated with such small lakes.
"State listed species"means species of fish and wildlife that are listed as threatened, endangered, or sensitive by the state of Washington, as indicated by the Washington Department of Fish and Wildlife's Priority Habitats and Species List.
"Unavoidable and necessary impacts"are impacts to regulated wetlands that remain after a person proposing to alter regulated wetlands has demonstrated that no practicable alternative exists; except that a person proposing to alter a prior converted cropland is not required to demonstrate that no practicable alternatives exist.
"USGS"means the United States Geological Survey.
"Utility line"means pipe, conduit, cable or other similar facility by which services are conveyed to the public or individual recipients. Such services shall include, but are not limited to, water supply, electric power, gas, communications and sanitary sewers.
"Water-dependent"means requiring the use of surface water that would be essential to fulfill the purpose of the proposed project.
"Waters of the state"means water defined in WAC Title
222, the Forest Practice Rules and Regulations; further defined as the classification system established in WAC
222-16-030 and
222-16-031 as exists now or hereafter amended.
"Well or wellhead"means any excavation that is drilled, cored, bored, washed, driven, dug, jetted, or otherwise constructed when the intended use of an excavation is for the location, diversion, artificial recharge, or withdrawal of groundwater.
"Wellhead protection area (WHPA)"means the surface or subsurface area surrounding a municipal water well or well-field through which contaminants are reasonably likely to move toward and reach such water well or well-field within six months, one year, five years and ten years. WHPAs are areas that are defined for the purpose of water resource management. WHPAs generally include areas identified as capture zones and may include additional areas to account for uncertainties in the delineation of the capture zones.
"Wetland edge"means the boundary of a wetland as delineated based on the provisions contained in this chapter.
"Wetland mosaic"means a patchwork of wetlands that is considered one unit where each patch of wetland is less than one acre; each patch is less than one hundred feet apart on average; and the areas delineated as vegetated wetland are more than fifty percent of the total area of the wetlands and uplands together.
"Wetland permit"means any permit issued, conditioned or denied specifically to implement this chapter.
"Wetland rating system"means the procedure detailed in Washington State Wetland Rating System for Western Washington—Revised, Washington State Department of Ecology Publication No. 14-06-029, October 2014, as amended.
"Wetlands"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 adapted for life in saturated soil conditions. Wetlands generally include swamps, marshes, bogs, and similar areas. Wetlands do not include those artificial wetlands intentionally created from nonwetland 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 nonwetland areas to mitigate the conversion of wetlands.