11415 AIRPORT RD 2023-11-28 - Laserfiche WebLink

1. Table 37.3: Reduced Wetland Buffers When General Mitigation Measures Are Applied WETLAND CATEGORY WETLAND TYPE HABITAT FUNCTION SCORES 3-5 6-7 8-9 BUFFER WIDTHS (in feet) I All including forested except those listed below 75 110 225 I Bogs 190 225 II All except estuarine 75 110 225 II Estuarine 110 III 60 110 225 IV 40 2. The standard buffer widths required by this chapter presume the existence of a relatively intact native vegetated community including native tree cover, shrub understory and ground cover. If the existing buffer is unvegetated, sparsely vegetated, or vegetated with invasive species, the buffer vegetation shall be enhanced or restored to the width required by this section. The vegetation shall include native plant communities that are appropriate for the Puget Lowland ecoregion or with a plant community that provides similar functions. The tributary of Swamp Creek has the potential to be fish -bearing and therefore is rated a Type F stream, see DNR FPARS map. The standard buffer requirement for a Type F stream is 100 feet. The buffer has more intact native vegetation with Himalayan blackberry in the understory, and areas that sparsely vegetated. The invasive species will be removed and sparsely vegetated areas will be replanted with native plant species. EMC 19.37.170 Standard stream and lake buffer requirements. Table 37.5: Stream Buffers Standard Buffer: Unvegetated; Standard Sparsely Stream Buffer: Intact Vegetated; or Classification Native Vegetated with (Type) Vegetation Invasive Species Type S 100 feet 150 feet Type F 100 feet 150 feet Type Np 50 feet 75 feet Type Ns 50 feet 75 feet 5