2525 W CASINO RD BASE FILE 2018-01-01 MF Import

a �� MEMORANDUH H q H �PO: Steve lnqelsbe C� M�� FROM: Stephen Stanle Y � y H SU�JECT: paine Field Business ParF: �C O CC: p� H� DA`PE: December 17 , 1992 CqM _.. _ .._ � z ,�� At the request of Jim Hayes I inspected the created wetland at the Painc Field Uusiness Park II on November 30, 1992. � �8 H" 5n Mr. Hayes wanted clarification on several issues , includinq: � y�* whether or not he could mow the bioswale; was a °ence t� H y around the wetland required; and what type of maintenancc �yy measures were required within the created wetland. o H c� C y � �� Clarification on these issues are as follows: y p y 1 ) Public vorks does not require movinq of a bioswale unJess it is within the Silver Lake vatershed. '1'tie concern is that nutriants from the dyinq plants durinq the fall will impact 9ilver Lake water quality. Phis project is not within the Silver Lake watershed so this requirement is optional . Presently , the ansite � � b:oswale is veqetated with cattails which provides � � suitable habitat value and Cilte�inq of toxins. 1`here is no objection to mowiny the bicsw�le, but leavinq this area as veqetated would les�aen maintenance and f� �.' limit habitat disturbance. Y 2 ) A qreen vinyl Cence should be inscaLled around Y.hc restored vetland site in order to stop dumping that has 1� �� occurred on its perimeter. 7'he placement of screeninq "� strips in the fence is not required. Small signs should be placed on the [ ence notinq that the area is � `.�' ati "Environmentally Sensitive fiabitat" and that no dumpinq within, clearinq or modification of the area should occur without written permission from the City. 1� ; � ] ) Perform the followinq maintenance measures within "' the created wetland: �� a ) replace the dead and dyinq cedars in the north, �� northeast , and northwest buffers; and b) thin the alders to a 5 x 5 spacinq ( a botanist or • horticulturalist should flaq ali existinq plantinq�- prior to �-uttinq of the volunteer aldcr pl �ntinyal ; an�i