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I <br /> Table V-4. .2(1) Maintenance Standards - Detention Ponds (continued)111 <br /> Maintenance Conditions When Results Expected When <br /> Component Defect Maintenance Is Maintenance Is Per- <br /> Needed formed <br /> gasoline, contaminants <br /> or other'pollutants <br /> I and Pollution (Coordihate lutants present. <br /> removal/cleanup with <br /> local water quality <br /> Iresponse agency). <br /> Any evidence of rodent Rodents destroyed and <br /> holes if facility is acting dam or berm repaired. <br /> as a dam or berm, or (Coordinate with local <br /> Rodent Holes health department; <br /> any evidence of water coordinate with Ecology <br /> piping through dam or Dam Safety Office if pond <br /> berm via rodent holes. exceeds 10 acre-feet.) <br /> I Facility is returned to <br /> design function. <br /> Dam results in change <br /> I: Beaver Dams or function of the facil- (Coordinate trapping of <br /> ity beavers and removal of <br /> dams with appropriate per- <br /> Itmiffing agencies) <br /> Insects destroyed or <br /> When insects such as removed from site. <br /> IInsects wasps and homets <br /> interfere with main- Apply insecticides in com- <br /> tenance activities. pliance with adopted IPM <br /> I policies <br /> Tree growth does not <br /> I allow maintenance <br /> access or interferes Trees do not hinder main- <br /> with maintenance activ-tenance activities. Har- <br /> 1; ity (i.e.; slope mowing, vested trees should be <br /> Tree Growth and silt removal, vectoring, recycled into mulch or <br /> Hazard Trees other beneficial uses e. <br /> or equipment move- ( g <br /> Iments). If trees are not alders for firewood). <br /> interfering with access Remove hazard Trees <br /> or maintenance, do not <br /> I remove <br /> I <br /> 1 2014 Stormwater Management Manual for Western Washington <br /> Volume V Chapter 4 -Page 830 <br />