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�. <br /> ,r�,r�� �rs �, , � ,;� � <br /> ,..:rL< < y�er � I c�"�`•-X �'�` � ' <br /> 7�, ` � � <br /> �, ��,��;���,=�1 , ,��L�,,� �,.,� ;a -A'�Z'c �`��D � � � � d � D <br /> M E M O R A N D U M ��4 <br /> _, ,,........ <br /> CIT f OF EVERETT <br /> Btdg. Permit Counter <br /> TO: Kirk Brooks j�1'L � , ,, C/' , <br /> j FROIi: Jane Zimmerman � U"�L , ' <br /> � � �'��� �`��7� <br /> DATB: February 28, 1994 <br /> � <br /> BDBJECT: Plan Review, SEPA ,�50-92, Mukilteo <br /> School District's Central Facilities <br /> Complex <br /> CONDZTIONS OF APPROVAL <br /> The decision document requires a copy of the Hydraulic ✓ <br /> Project Approval tc. be submitted with the plans. <br /> With regards to the runoff routed to wetlands D and E: to � <br /> meet City standards and the conditions of approval, a <br /> baffle-type oil/water separator is required upstream of the <br /> biofiltration swale and the dispersion trench. This baffle- <br /> type oil/water separator should replace catch basin #`15. <br /> CALCIILATIONS p <br /> GJ rk�l <br /> WetponG/Detention: � iQ <br /> �nG <br /> The detention system needs to be designed.t�__meet both City <br /> of Everett�frl—B rtment of Fishe�j3f an HPA is <br /> required) standards. erett standards call for <br /> release of the 25 year rm r at the existing 10 year <br /> rate, which is mor ringent than Fi ries' standards for ; <br /> larger storms. * <br /> Additional comments are written directly in the submitted <br /> drainage report. <br /> Stormwater treatment aystem: <br /> City standards requir� an oil/water separator to be provided ✓ <br /> upstream of the vegetated (biofiltration) swale. <br /> City standards require high flow bypasses for both oil/water ✓ <br /> separators and vegetated swales. Because the contributory <br /> area is small, and because the flow will be split downstream <br />