1505 INDUSTRY ST 2018-01-01 MF Import

; �.o orr-srri. ,�rv�u,��s�s llpstrcam: '�hcrc is nu upsircum hnsin contnbuting runoff as dicwtcd hy topugraphy. Thc proposed Rinker Materials site, locatcd cast of�he Scnway Cen�er Lot 8 devetopment, currently drains all of its runoff in an castcrly dircction onto its own sitc and docs not impact the proposcd devclopment ai alL Runoff Gom the derclnpment south of the Sr.nvay propen} :; conveyed in thcir own convcyance system away from the site, and the si�e is bound on the nonh and the �cest hy e�isting roads, titerrill ('rcek Parkway and Hardesen Ru;id. «hich h:rve thcir own cullection and couvcyuncc s}'stcros. � Un�cnst rcam: I'he predeveloped pruject si�c �vas fures(ed and ��'as locatecl within I�ca sepur:uc drainage busins. �7crrili �md Ring Gcck to the �eest antl Glemvood Crcek to the east. Ap��roximately IO.S acres dr;iined to Merrill and Ring Creck and 7.2 acres druined to Gicnwooel Crcek. The predeveloped bnsin ratio will bc maintained under the de��eloped cundilions by rou�ine equi��alent areas to each batiin. '1'hc �xoposed huilding roof runoff,tlie design�ted fulure building expansion areas. �md designa�cd I;mJscnpc areas will account for thc 7.2 acres to Glcnwuud Crcck drainacc basin. Thc remai.�dcr of the projcct si1e, consisiing of the parking lol pa�'enunl and landscape isl�mds and the truck loadine dock puvemenl �aill drain to the hlcrrill :mJ Rirg Creck drainage basin. The Merrill and Rine Crcek downsu'cam �vill drain to the existing detcntion pond located in Traci S01, which �lisch;�r�es iNo an IS-inch RCP culvcrt discharging on thc uu�t�: side of 1�1crrill Creek Park�vay :ind ulmost immcdialely into Merrill and Ring Crcek �viiich (lows in a nor�herly direction and �cithin �i couplc of miles discharges into Pu�e� Sound. The vasl majority of the downstream dr;iinagc coursc is undeveloped ,md consists of trees an,l fnresl land. Dlerrill and Ring Creck is a �:ril-knu��n drainagc coarsc throu�,h this arca and ihc ('ity of Gvcrctt is �ecll a�varc of ihe �I„�,�nslicum dr:iinacc ruursr �iom 1!�c projcct silc. I IW70.OW.duc �JPJ/bql