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Stormwater36Q Size and Cost Estimate <br /> .�a.., <br /> C�scade Court- 8tormvwMr Troatment Sysbm <br /> Everott,WA <br /> IMorm�tlon provld�d: <br /> . Total conMbuHnp aroe m 0.807 ecres <br /> . Imparvbue aroa■0.807 acres <br /> • Water qualily Ilow, Q.q=0.098 cfs <br /> . Peak hydraulb flow rete,9P..n=0.43 cis(100 yr) <br /> . Presidfnp apency�City oi Everett <br /> M�umptlon�: <br /> • Medl�l �ZP(3 CeR11dgB8 <br /> . Drop requlrerf from inlet to outlet= 2.3' minimum <br /> Size�nd cost atNnabs: <br /> The StamFNter Is a Ilow-besed system� end thereiore, is aized by ce�uleting the water qualily Ibw ra0e aseodeled <br /> wNh the desipn stortn. The waEer qual�y 1bw rete wee celailated ueinB the Wbatem Waehinpton Hydrolopy rtielfad <br /> usirq the onNne 16 mlrM�te adJueEed tivYv. <br /> The StamFNter for thla e16e was elzed besed on e water quaNty 1bw rete M 0.098 ds. To a000rnmodate this 1bw <br /> rate. Startwveter�80 reoortxnenda uelnp e 72' manhole p�ec:est StormFlMer wMh 8 certridpes (eee aB�died def�. <br /> The eetlmaEed oost ot tlda system fe 518.�44��end deNve�ed to Ihe job alte. Thfa eetlmaEa essixnee lhet the <br /> veult Is 6 feet deep. The flnel syetem coet wql deper�d on the ectual daplh oi tlie unMs and wheUbr e�Qree Ake doore <br /> retlier fhan ceatlnps are spe�Aed. The contrador le �esponsible far eetifnp the StortnFlMer veuR and all exlemel <br /> plumbl�B• <br /> The StortnFiRer has an intemal bypass capadty of 1.8 cfs. N the peak discherpe ott the eRe le ezpeded to <br /> exoeed that rate,we recommend placinp a hiph-tlow bypesa upstreem oi the StormFilter systom. <br /> Stormwater380 could provide our hlgh-flow bypass, the StortnGate,which provides a combinatlon welr-orifk�e <br /> control structure to Ilmft the flow to the StortnFiRer,for approximetely i4,500. The flnal cast would depend on <br /> the actuel depth and size oi the unfl. <br /> The leedera In Me afamweter h�duahy, Stcmiwater Menepen�(fnc.and VaTechnfra, Inc.,have unMed ea Sfamwetsr3E0"'-fhe <br /> cavnprehenalve provider ol wmweter adullona. WIM en�mpareMkd producf 7Ne snd unmeAched cuafomer aupporf tesm under <br /> one umarene, sronrn�erer.�,o nes n�e neam�e�r uPnon ro mssr rou►werer aw�r a�• <br /> www.stormwater360.com <br /> �— <br /> � � roxo nq�om., �asr��aa.w �ma <br /> EnYrplw DiM.8or0aaq��ME W07� 11071�NE AMP��1'�Pp�rtl.OR 17770 Td/nr.Mb1�0al1� Fec MWN.M11 <br /> 4iw:!l7.Y07.lE7! Fnc A7.Cl6.0l26 To��:/00.lM,IM7 Fbc�00.!l1.1711 <br /> 106 KA7HNYNT <br />