Ordinance 3676-19 - Laserfiche WebLink

"Significant biological areas" means the following areas of the city: 1. Plant associations of infrequent occurrence; 2. Commercial and recreational shellfish areas; 3. Kelp and eelgrass beds; 4. Herring,sand lance, and smelt spawning areas; 5. State natural area preserves and natural resource conservation areas;and 6. Those areas listed in the 1981 SEPA Resource Inventory as significant biological areas,which are: a. Maulsby Swamp, b. Kasch Park(Bomarc) Bog, c. Simpson Lee site Category I wetlands, d. Narbeck Swamp, e. Jetty Island. "Significant surface water connection" means a surface water flow that is continuous for thirty days or more during years of normal rainfall. "Steep slopes"means any ground that rises ten or more for every twenty-five feet of horizontal distance,thus having a grade of forty percent or steeper.A slope is delineated by establishing its toe and top: 1. "Toe"of a steep slope is the lower most limit of the area where the ground surface rises ten feet or more vertically within a horizontal distance of twenty-five feet. 2. "Top"of a steep slope is a distinct, sharp break in slope which separates slopes inclined at less than forty percent from slopes equal to or greater than forty percent. Where no distinct break in slope exists,the top of the steep slope shall be the uppermost limit of the area where the ground surface drops ten feet or more vertically within a horizontal distance of twenty-five feet. "Stream" means those areas where naturally occurring surface waters flow sufficiently to produce a defined channel or bed which demonstrates evidence of the passage of water including, but not limited to, bedrock channels,gravel beds,sand and silt beds and defined-channel swales.A defined channel or bed means a water course that is scoured by water or contains deposits of mineral alluvium.The channel or bed need not contain water during the entire year. Streams do not include water courses which were created entirely by artificial means,such as irrigation ditches,canals, roadside ditches or storm or surface water run-off features, unless the artificially created water course contains salmonids or conveys a stream that was naturally occurring prior to the construction of the artificially created water course. "Stream channel bottom" means the submerged portion of the stream cross-section which is totally an aquatic environment.The channel bottom may be seasonally dry. EMC Title 19.37 (Critical Areas) Page 78