Laserfiche WebLink
. , <br /> y. S dt�W�tet' lWuer: Eanh: Plw��od Animd�l <br /> a. On-site detmrion shall be provided to mat required drainage basin standards <br /> for all developmrnt ezoept that area cur�►a�uY dcaining to the main forr <br /> Powder Mill Gulch detendon pond. Sufficient detendon storage has alieady <br /> beai provided in the mtin iork Powdu biill Gulch detendon pond to re�uce <br /> pplc flows to 49 cfs for storms up to and including the 25 year, 24 hour <br /> storm. <br /> b. Vegetated swalu shall be provide� to veat stormwater runoff for all <br /> development except that area curtendy draining to the peat filter sysum. <br /> c, A water quatity monitoring program must be submitted to and app�oved by <br /> the Ciry prior to occupancy of any swcture located in the area draining to the <br /> main fork of Powdu Mill Guich. Water quality shall be sampled at the <br /> outfail af the peat tilter system and at the planned outfall of the crcated <br /> wetlands. <br /> (I) The daign goals of the pea[ tilter system ior dischazge not to exaed 0.7 <br /> mg/l for fuel and oil t.e•nE►s �Pv. c. Pp i-�� should be met. In no event <br /> shall fuel and oil discharges from the peat filter sysum excad levels <br /> which wiU result in a failure to protect downstream tisheries habitat. <br /> (2'� A moniwring and contingency plan co accomplist►d►ese goals for the basin I <br /> mwt be reviewed an� appcoved by the Ciry c�e.ne� ��. c.DF 2•`)• <br /> (3) The approved plan shall be impicmented by Baeing in the evrnt the design <br /> goal is not met, ida��fy the sourr_e of poUutants and remedial opdons for <br /> review and approvai by �he Ciry. <br /> d. Baeing's existing operadonai praxdures in on-site drainage basins include <br /> regular monitoring, inspection and clanout of oiUwater sepantors, catch I <br /> basins and biofiltraaon systems. <br /> Boeing shall wntinue these or equivalent operadonal procedures to maintain <br /> effacdveness of separdtocs. batins and systems. <br /> e. Wetlands, sveam or sea�onal stream corridors, and their associated buffers <br /> shali not be usad for drainage detention facilities, or vegetated swales, ezcept <br /> for nxessary crouings of the buffer to discharge treaud surface water. <br /> � <br /> l� <br />