8130 EVERGREEN WAY BASE FILE 2018-01-01 MF Import

downstream Analysis Stormwater ct�rrently sheet ilows to a catch basin located in Beverly Lane, then discharges to a ditch along the east slioulder of Beverly Lane. The ditch conveys the runoff irom ihe east Yz of Beverly Lane and purtions of the K Mart loading dock area. Ditch fiow continues to the north where it ties into a conveyance system at the intersection approximately Y2 mile north of the project site. Operadons and Maintenance Guidelines of Beverly Lane and 79'" PI. SE, The recommended stormwater site plan includes new stormwater detention facilities that require inspection and maintenance effort. A maintenance program shall be implemented to inspect catch basins, manholes, wetpond pond, outfalls, and ditches on a regular basis to identify areas where erosion or sediment collection is a problem �nd to ensure proper functioning. 7he initial schedule may be adjusted based on site experience. The plan should include the regular inspection and cleaning of catch basins and storm drains. Frequent sweeping and pickup of loose refuse should also be employed to preserve water quality aiid reduce the maintenance required for the stormwater facilities. Accumulated sediment and fluids removed by vactor truck must be removed and disposed of at suitable disposal sites. Sites should be certified approved for accepting road generated sediment wastes by WSDOE or local agen�ies with proper authority. Tests may have to be performed to determine the leaching potential and level of accumulation of hazardous material before acceptance for disposal. May 2003 3 of 6 ABKJ, Inc. �� , / I�