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Table V-4.5.2(20) Maintenance Standards - Compost Amended <br /> Vegetated Filter Strip (CAVFS) (continued) <br /> Conditions <br /> Maintenance When Main- Results Expected When Maintenance <br /> Component Defect tenance is is Performed <br /> Needed <br /> For ruts or bare areas less than 12 <br /> inches wide, repair the damaged area by <br /> Areas have filling with a 50/50 mixture of crushed <br /> eroded or gravel and compost. The grass will <br /> Erosion/scouring scoured due creep in over the rock in time. If bare <br /> to flow chan- areas are large, generally greater than <br /> nelization or 12 inches wide, the vegetated filter strip <br /> high flows. should be regraded and reseeded. For <br /> smaller bare areas, overseed when bare <br /> spots are evident. <br /> Flow spreader <br /> is uneven or <br /> clogged so Level the spreader and clean so that <br /> Flow spreader that flows are flows are spread evenly over entire filter <br /> not uniformly width <br /> distributed <br /> over entire fil- <br /> ter width. <br /> Table V-4.5.2(21) Maintenance Standards - Bioretention Facilities <br /> Recommended Fre- Condition <br /> uenc when Main- <br /> Maintenance q Y a Action Needed (Pro- <br /> tenance is <br /> Component Routine Main- cedures) <br /> Inspection Needed (Stand- <br /> tenance ards) <br /> Facility Footprint <br /> . Eliminate cause of <br /> Erosion (gullies/ erosion and stabilize <br /> rills) greater damaged area <br /> Earthen side than 2 inches (regrade, rock, veget <br /> slopes and B, S deep around ation, erosion control <br /> berms inlets, outlet, matting) <br /> and alongside . For deep channels <br /> slopes or cuts (over 3 <br /> inches in ponding <br /> 2014 Stormwater Management Manual for Western Washington <br /> Volume V- Chapter 4 -Page 862 <br />