6400 MERRILL CREEK PKY 2018-01-01 MF Import

All orifice sizes and their alevations, as well as tha overflow elevation, should be clearly shown on each detail of the control structure(s) . � r��'=� �� 431/xater sacaration �nd crit removal vaul*: .��P � `��G,� !-r��'`� City standards require flows larger than the desiqn flow to v.� _,� be bypas;e3 around the vault. The Plow through the separator should not exceed the maximum process flow (t•he largest flow the separator can handle bafore acciimulate3 oil begins to be flushed out) when the head needed to pass the 25 year storm is reached in the highflow bypass pipe. Overflows would need to be split and half routed directly to each wetland. The crown of the vault inlet should be at or below the invert elevation of the bypass pipe. The vault inlet pipe i should be sized to convey the design flow under the head present when the invert of the overflow pipe is reached. A minimum of two feet of catch should be provided below the invert of the vault inlet and the bottom of the flow diversion catch basin. � A detail of the vault should be included on the plans clearly showing the inlet and outlet elevations of the separator, � PiPu�t,��f�he b9ttoto_o�the separator, and the position and height of interior baffles. The vault should be equipped with a samp? ing tee at its outlet. � The oil/water separator maintenance notes from section 4. 11. 1 of the City of Everett Design and Construction Standards and Specifications need to be included on the drainage plans. 1 c3radinv: The proposed topographical contours for the site, as well as the existing contours, should be shuwn. This information is especially important in the infiltration basin and wetpond areas. Deaianated vehicle Wash Area• �i� f�r��l E VU��;��SI � If fleet vehicles will be washed on the site, the �a�`'V'P� � willlapplyts found in section 4-5.7 of the city's standards ��., , �,, ' ,