10725 HOLLY DR 2016-01-01 MF Import

"I he polluted condition continues to thc road culvert at 212�' ST, where it appears, the coniluence of the three Hollowdale streams has occuned. However,photcs 10 and 11 show stream enhanceme�t projects are being undcrtaken by area development.Channcl gradients were not mea,ured because the test area was too small to acquirc an accurate measuremen[. Adjacent property owners declined permission to venture onto private property for the additional data necessary to perform the measurments Wetland/Stream Functional Asscasment and Valucs DaGi plots generally climinated streamside areas near the proposed construction zone as ne6ative for wetland indicators. On the west side of the stream,positive wetland indicalors wcre discovered in an area of approximately 1 P�sq. R.. This azea,in close association with the s�cam, apparently has formed from erosion in.periods of high flow. Therefore its primary function is the attenuation of access water flows during significant rain events. This small wetlands close association to residential activities(liglits, automobile,mowers,pets,and busy roadways)and broken vegetative cover precludes any funct;oning for wildlife. The Washington State Wetland Rating(fig. 8)resulted in a total score for functions of 27 with an abysmal score of 7 for habitaL The Everett CAR ordinance states per Section II. A, (1)d the Category IV weNan�is that have a habitat score ofless than 19 shall have a minimum buffer of 35 it. The stream determination of Type Ns has a minimum Uuffer of 50 ft.The issue of fccal coliform pollutants further downsiream may be somewhat alleviated by the abandonment of the on site septic and subsequent connectian to:he city sanitary sewer system. F'�GULATORY IMPLICATIONS "The small ]00 sq. ft. Category N wetland is located on the west side of the stream. "Che 3.5 ft. buffers for this wetland will not be affected by proposed coustruction. The stream segment on the property exhibits seasonal flow and would therefore be categorized as a Type Ns,with associated 50 ft. buffers. Current code allows for buf(cr width reduction with cnhancement if required. Currently howevcr the applicanPs limits of construction will not encroach into stream buffcrs or the required 10 ft. setbacks. 'I'hc stream determination of Type Ns has a minimum buffer of 50 ft. The issue of fecal coliform pollutants furiher downstream may be somewhat alleviated by the abandonmcnt of the likely aging on-site drain field and subsequent connection to the city sanitary sewcr SVti(Clll. 9