For the purposes of this chapter, the following definitions shall apply:
"Air pollution"means the presence of contaminants in air in concentrations that prevent the normal dispersive ability of the air and that interfere directly or indirectly with human health, safety, comfort or the full use and enjoyment of property.
"Applicant"means the person, party, firm, corporation, or other entity seeking a clearing and grading permit approval from the Town of Woodway.
"Bench"means a relatively level step excavated or constructed on the face of a graded slope surface for drainage and maintenance purposes.
"Best management practices (BMPs)"means schedules of activities, prohibitions of practices, maintenance procedures, and structural and/or managerial practices approved by the Department of Ecology that, when used singly or in combination, prevent or reduce the release of pollutants and other adverse impacts to waters of Washington State.
"Buffer" or "buffer zone"means the area adjacent to the outer boundaries of critical areas including wetlands, habitat conservation areas such as streams and marine shorelines, and/or landslide hazard areas that separate and protect critical areas from adverse impacts associated with adjacent land uses by providing:
1. Protection of slope stability;
3. Reduction of landslide hazard risks;
4. Shading, input of organic debris and coarse sediments to streams;
5. Additional area for variations in stream or wetland boundaries; and
6. Habitat for wildlife and protection from harmful intrusion.
"Civil engineer"means an engineer who is licensed as a professional engineer in the branch of civil engineering by the state of Washington.
"Clearing"means the cutting, killing, grubbing, removal or degradation of vegetation, including vegetation with a trunk less than eight inches DBH, or other organic material by physical, mechanical, chemical or any other similar means.
"Clearing and grading management plan"is an agreement between the Town and the applicant for the long-term maintenance, management, preservation, and enhancement of property, as approved by the Director.
"Clearing and grading permit"shall mean the written approval of the Town of Woodway to proceed with the act of clearing property within the Town limits of Woodway. Such permit includes the form itself and any associated plans and/or conditions of approval.
"Compaction"means the densification of a fill by mechanical means.
"Cutting"means the severing of a main trunk or stem with an intent to destroy the vegetation, or the removal of more than twenty-five percent of the total vegetative height.
"Design manual"shall mean the version of the Washington State Department of Ecology Stormwater Manual adopted in Section
11.02.020.
"Developed lot, tract or parcel"means any share, portion, or division of real property, whether developed or partially developed, with a structure requiring a building permit.
"Development"shall mean any activity that requires federal, state, or local approval for the use or modification of land or its resources. These activities include, but are not limited to:
1. Subdivisions and short subdivisions;
3. Planned unit developments;
5. Shoreline substantial development;
10. Converting fallow land or undeveloped land to agricultural purposes;
11. Activity conditionally allowed;
12. Building or construction; and
"Development area"shall mean an area where the movement of earth or a change in the existing soil cover (both vegetative and nonvegetative) and/or a change in the existing soil topography occurs as a result of an applicant's development plans.
"Director"means the Public Works Director, or his or her designee.
"Drainage plan"means a plan for receiving, handling, and transporting surface water or groundwater runoff within the subject property.
"Ecology"shall mean the Washington State Department of Ecology.
"Emergency clearing and grading work"shall mean:
1. Work to reduce the imminent risk to life or primary residence created by flooding, slope failures, or wildfire; or
2. Work to remove debris from a public or railroad right-of-way after a natural disaster.
"Engineering geologist"shall mean a professional currently licensed in the state of Washington as an engineering geologist.
"Erosion"shall mean the wearing away of the land surface as the result of the movement of wind, water, or ice.
"Excavation"shall mean the removal of material such as earth, sand, gravel, rock, or asphalt.
"Fill"shall mean earth, sand, gravel, rock, asphalt, compost, wood or wood chips or other solid material used to increase the ground surface elevation or to replace excavated material.
"Filling"shall mean the act of placing fill material on any soil surface, natural vegetative covering, or other fill material to raise the ground elevation or to replace excavated material.
"Geotechnical engineer"shall mean a professional engineer currently registered in the state of Washington, qualified due to experience and education in the practice of geotechnical engineering.
"Grade"means the elevation of the ground surface.
2. "Finish grade"means the final grade of the site that conforms to the approved grading plan.
3. "Rough grade"means the stage at which the grade approximately conforms to the approved plan.
"Grading"means any excavation, filling, or removing of the duff layer, or combination thereof.
"Groundcover"means plants such as salal, ferns, mosses, grasses, or other types of vegetation which normally cover the ground, but does not include trees.
"Groundwater"means all water that exists beneath the land surface or beneath the bed of any stream, lake, reservoir, or other body of surface water within the boundaries of the state, whatever may be the geological formation or structure in which such water stands or flows, percolates, or otherwise moves (Chapter
90.44 RCW).
"Groundwater runoff"means that part of the groundwater that is discharged into a stream or as a spring or seepage water.
"Grubbing"shall mean the act of removing vegetation by the roots.
"Hard surface"shall mean an impervious surface, a pervious pavement, or a green roof.
"Impervious"shall mean a hard surface area (e.g., driveway or rooftop) that prevents or impedes the entry of water into the soil, thus causing water to run off the surface in greater quantities or at an increased rate of flow, as defined in Section
11.02.010.
"Land disturbing activity"shall mean any activity that results in movement of earth, or a change in the existing soil cover and/or the existing soil topography. Land disturbing activities include, but are not limited to, grubbing, grading, filling, and excavation.
"Light equipment"means hand-held tools and construction equipment, such as line trimmers, handsaws, wheelbarrows, and post-hole diggers.
"Low impact development (LID)"shall mean a stormwater and land use management strategy that strives to mimic pre-disturbance hydrologic processes of infiltration, filtration, storage, evaporation and transpiration by emphasizing conservation, use of on-site natural features, site planning, and distributed stormwater management practices that are integrated into a project design.
"Material"shall mean earth, sand, rock, asphalt, compost, garbage, wood or wood chips or other solid material.
"Permit"shall mean, unless otherwise noted, the clearing and grading permit or clearing and grading management permit; see "clearing and grading permit" and "clearing and grading management permit."
"Person"means any individual, association, organization, partnership, firm, corporation, or other entity recognized by law and acting as either the owner of a premises or as the owner's agent.
"Pervious"shall mean soil or other material that allows the infiltration or passage of water or other liquids.
"Removal"shall mean the actual destruction or causing the effective destruction through damaging, poisoning, or other direct or indirect actions resulting in the death of a tree or groundcover.
"Replaced impervious surface"1. For structures, means the removal and replacement of impervious surfaces down to the foundation.
2. For other impervious surfaces, means the removal down to bare soil or base course and replacement.
"Routine landscape maintenance"shall mean keeping a landscape healthy, clean, and safe using hand labor and light equipment to carry out plantings, periodic weeding and fertilizing, other gardening, lawn care, path maintenance, plant pruning, and other jobs for protecting and improving the topsoil, plants, and garden accessories that are undertaken by a person in connection with the normal maintenance and repair of property.
1. This definition does not include tree removal or topping;
2. This definition includes removal of the following vegetation:
a. Any species on the Washington State or Snohomish County Noxious Weed List;
b. English ivy (Hedera helix);
c. English laurel (Prunus laurocerasus) and other laurel species;
d. English holly (Ilex aquifolium);
e. Himalayan blackberry (Rubus armeniacus);
f. Evergreen blackberry (Rubus laciniatus); and
3. This definition does not include work associated with a larger common plan of development that, if combined with the routine maintenance, would require a permit.
"Premises"means any building, lot, parcel of land, or portion of land, whether improved or unimproved, including adjacent sidewalks and parking strips.
"Sediment"means solid material, both mineral and organic, that is in suspension, is being transported, or has been moved from its site of origin by air, water, gravity or ice and has come to rest on the earth's surface either above or below sea level.
"Shorelines"means those lands defined as shorelines in the State Shoreline Management Act of 1971.
"Site"means a single lot, or parcel of land with two or more contiguous lots, that are under common ownership or documented legal control, used as a single parcel for a development proposal in order to calculate compliance with the standards and regulations of this chapter. For purposes of this definition:
1. "Documented legal control"includes fee simple or leasehold rights, or an easement, or any combination thereof, which allows uses associated with the overall development proposal; and
2. Lots that are separated only by a public road right-of-way shall be considered to be contiguous.
"Storm drainage system"means publicly owned facilities, including the Town's municipal separate storm sewer system, by which stormwater is collected and/or conveyed, including but not limited to any roads with drainage systems, municipal streets, gutters, curbs, inlets, piped storm drains, pumping facilities, retention and detention basins, natural and human-made or altered drainage channels, reservoirs, and other drainage structures.
"Stormwater"means runoff during and following precipitation and snowmelt events, including surface runoff and drainage.
"Stormwater facility"means a device or system constructed for stormwater runoff quantity control or water quality improvement including but not limited to rain gardens or other bioretention facilities; infiltration facilities; detention pipes, vaults, or ponds; and oil/water separators.
"Stormwater pollution prevention plan"means a document that identifies sources of pollution or contamination at a site and describes the best management practices, activities, and actions to eliminate or reduce pollutant discharges to stormwater, stormwater conveyance systems, and/or receiving waters to the maximum extent practicable.
"Stream"means surface waters carried in defined channels or beds, intermittently or perennially, excluding irrigation ditches, canals, storm or surface water runoff devices or other entirely artificial streams, unless used by salmonids or to convey surface water naturally occurring prior to the alteration of the land. A defined channel or bed shall constitute an area which demonstrates clear evidence of passage of water and includes, but is not limited to, bedrock channels, gravel beds, sand and silt beds, and defined channel swales. A channel or bed need not contain water year-round but should show evidence of annual intermittent flow to meet the requirements of this definition.
"Town"means the Town of Woodway, Washington.
"Tree"means a tree with a trunk of eight inches or more in diameter.
"Tree removal"means the removal of a tree, through direct or indirect actions, including, but not limited to:
2. Cutting or pruning that causes irreversible damage to roots or trunks;
4. Destroying structural integrity;
5. Filling, excavation, grading, or trenching in the critical root zone of a tree that has the reasonable potential to cause irreversible damage to the tree; and/or
6. Removing more than thirty percent of the total height of the tree.
"Undeveloped lot, tract or parcel"means any share, portion, or division of real estate on which no structure requiring a building permit exists and which may be further developed or subdivided in accordance with the Town's zoning regulations.
"Vegetation"means any and all organic plant life growing at, below or above the soil surface.
"Water body"means a surface water feature, whether standing or flowing, including, but not limited to, sounds, lakes, ponds, rivers, streams, and creeks including waters of the state.
"Waters of the state"includes those waters as defined as "waters of the United States" in
40 CFR Subpart 122.2 within the geographic boundaries of Washington State and "waters of the state" as defined in Chapter
90.48 RCW which includes lakes, rivers, ponds, streams, inland waters, underground waters, salt waters and all other surface waters and water courses within the jurisdiction of the state of Washington.
"Wet season"shall mean the period of the year between October first and April thirtieth.
(Ord. 20-611 § 2 (Exh. B (part)), 2020)