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CITY OF EVERETT STORMWATER MANAGEMENT MANUAL <br /> Detention Ponds <br /> Date <br /> Drainage <br /> System Maintenance Activities and Conditions That <br /> Frequency Feature ✓ ✓ ✓ ✓ Problem Conditions to Check For Should Exist <br /> M'S General Trash and Debris Any trash and debris which exceed 5 cubic Trash and debris cleared from site. <br /> feet per 1,000 square feet(this is about equal <br /> to the amount of trash it would take to fill up <br /> one 32 gallon garbage can). In general,there <br /> should be no visual evidence of dumping. If <br /> less than threshold all trash and debris will be <br /> removed as part of next scheduled <br /> maintenance. <br /> A General Poisonous Any poisonous or nuisance vegetation which No danger of poisonous vegetation where <br /> Vegetation and may constitute a hazard to maintenance maintenance personnel or the public might <br /> noxious weeds personnel or the public. Any evidence of normally be. (Coordinate with the Snohomish <br /> noxious weeds as defined in the Snohomish County Health Department.) Complete <br /> County Noxious Weeds List. Apply eradication of noxious weeds may not be <br /> requirements of adopted integrated pest possible. Compliance with state or local <br /> management policies for the use of herbicides, eradication policies required <br /> M'S General Contaminants and Any evidence of oil, gasoline, contaminants or No contaminants or pollutants present. <br /> Pollution other pollutants (Coordinate removal/cleanup with the City of <br /> Everett Surface Water Management 425-257- <br /> 8885 and/or DOE Spill Response 800-424- <br /> 8802.) <br /> M General Rodent Holes If the facility is constructed with a dam or berm, Rodents removed and dam or berm repaired. <br /> look for rodent holes or any evidence of water (Coordinate with Snohomish County Health <br /> piping through the dam or berm. Department; coordinate with Ecology Dam <br /> Safety Office if pond exceeds 10 acre-feet.) <br /> M General Beaver Dams Beaver dam results in an adverse change in Facility is returned to design function. Contact <br /> the functioning of the facility. the Washington Department of Fish and <br /> Wildlife to coordinate with a Nuisance Wildlife <br /> Control Operator. <br /> A General Insects When insects such as wasps and hornets Insects destroyed or removed from site. Apply <br /> interfere with maintenance activities. insecticides in compliance with adopted <br /> integrated pest management policies. <br /> Appendices <br /> F-3 <br />