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I <br /> . • I. <br /> � V15YIYti1� tllit �� <br /> \ OIII�IY111 Of <br /> E G 0 I, o C Y P,pril20Q6 <br /> (Updated Uecember 2006) <br /> CONllT'CIONAL U5E L�VEL DESICNATIOv FOK YIZETREATMENT (TSS) <br /> For <br /> Stormceptor System� <br /> Ecoloev's Decision: <br /> Based on Imhrium Systems Corporntinn's application submissio.ns und recummendations <br /> by the Technicul Revicw-Gommittce (TRC),Ecology hereby issuesithe following U�c Level <br /> DesignationY�ir the imbrium S}'stems Corpuration Stormceptor Sy'stem�: ` <br /> l. Conditional Use Level Dcsignation(GULD) for pretreatment,as defined in the Eculogy <br /> ManuaCVolume l,(a) ahcad of inCiltration treatment;or(b).to protect and eztend;the _ <br /> maintcnance cycle of a Easic ur Enhunced Trentmenf device-(c:g.,sand or media filter). <br /> This CULD appliesto Stormceptor System0 �mits sized in accord.ance with Tabie t _ <br /> (bclow) at thc�vater quulity design flowrate as determined usiqg thc��`estern -. <br /> � �VasLingtou Hydrulo�y Model (N'�YHDi): <br /> Tuble l <br /> Treatment Flowrate <br /> Unit ' � <br /> STC 450i l43 <br /> S'PC 900 28� <br /> STC 1200 Zg� <br /> STGt8U0 'R5 <br /> STC 2400 476 <br /> STC 3601) 't76 <br /> STC 4800 793 <br /> S'l'C 6000 793 <br /> s•rc noo �t to <br /> STC <br /> 11000 1585 <br /> STC -- <br /> 13000 1585 <br /> sTc <br /> i�000 : �zio _ <br /> !� <br /> 2. The CULD exp�res on April 3Q,2009 unless extencfed by__Ecnlugy. _— - <br />