Laserfiche WebLink
<br /> <br />27 <br /> <br />“Mine hazard areas” are areas underlain by abandoned mine shafts, secondary passages between <br />shaft tunnels, or air vents. Mine hazards include subsidence, which is the uneven downward <br />movement of the ground surface caused by underground workings caving in; contamination to <br />ground and surface water from tailings and underground workings; concentrations of lethal or <br />noxious gases; and underground fires. <br />17A.02.490 Mining. <br />"Mining" means the removal of sand, gravel, soil, minerals, and other earth materials for commercial <br />and other uses. Mining does not include mineral prospecting conducted according to the most <br />current WAC for mineral prospecting under the hydraulic code. <br /> <br />17A.02.500 Mitigation Sequencing. <br />"Mitigation Sequencing" means a process used to guide mitigation decisions and determine the type <br />and level of mitigation required. It follows a three (3) step process, described in 17A.01.100: <br />a. Avoiding the impact altogether by not taking a certain action or parts of an action; <br />b. Minimizing impacts by limiting the degree or magnitude of the action and its <br />implementation, by using appropriate technology, or by taking affirmative steps to <br />avoid or reduce impacts; <br />c. Rectifying the impact by repairing, rehabilitating, or restoring the affected <br />environment; <br />d. Reducing or eliminating the impact over time by preservation and maintenance <br />operations during the life of the action; <br />e. Compensating for the impact by replacing, enhancing, or providing substitute <br />resources or environments; and/or <br />f. Monitoring the impact and taking appropriate corrective measures. <br /> <br />17A.02.510 Monitoring. <br />“Monitoring” means evaluating the impacts of proposed developments on the biological, <br />hydrological, and geological elements of such systems, and assessing the performance of required <br />mitigation measures throughout the collection and analysis of data by various methods for the <br />purpose of understanding and documenting changes in natural ecosystems and features, including <br />gathering baseline data. <br /> <br />17A.02.520 Native Growth Protection Area. <br />“Native growth protection area” means an area where native vegetation is preserved for the purpose <br />of preventing harm to property and the environment, including, but not limited to, controlling surface <br />water runoff and erosion, maintaining slope stability, buffering, and protecting plant and animal <br />habitat. <br />17A.02.530 Native Vegetation. <br />“Native Vegetation” means plant species that are indigenous to the area in question. <br /> <br />17A.02.540 Naturally Occurring Ponds. <br />“Naturally occurring ponds” means those ponds and their submerged aquatic beds that provide fish <br />or wildlife habitat, including those artificial ponds intentionally created in upland areas for mitigation <br />purposes. Naturally occurring ponds do not include ponds deliberately designed and created in