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Table V-4.5.2(21) Maintenance Standards - Bioretention Facilities <br /> (continued) <br /> Recommended Fre- Condition <br /> when Main- <br /> Maintenance quenc y a Action Needed (Pro- <br /> tenance is <br /> Component Routine Main-Neededcedures) <br /> Inspection (Stand- <br /> Inspection ards) <br /> shrubs, if necessary. <br /> 2014 Stormwater Management Manual for Western Washington <br /> Volume V- Chapter 4 -Page 873 <br />