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CITY OF EVERETT STORMWATER MANAGEMENT MANUAL <br /> Appendix F - Maintenance Checklists <br /> INSTRUCTIONS FOR USE OF MAINTENANCE CHECKLISTS <br /> The following pages contain maintenance needs for most of the components that may be part of a <br /> drainage system. Those components that are applicable to a particular project must be contained within <br /> the project's Maintenance Plan(see Volume I,Chapter 3.2.6H). The property owner shall plan to <br /> complete a checklist for all system components on the following schedule: <br /> (M) Monthly from October through April. <br /> (A) Once in late summer(preferably September). <br /> (S) After any major storm(use 1 inch in 24 hours as a guideline). <br /> Photocopies of these pages shall be used and checked off for the problems looked for each time an <br /> inspection is completed. Comments on problems found and actions taken shall be noted. Some items do <br /> not need to be looked at every time an inspection is done. The suggested frequency at the left of each <br /> item shall be used as a guideline for inspections. <br /> The"checked"sheets shall be kept by the property owner and made available to the City upon request. <br /> The facility-specific maintenance standards contained in this appendix are intended to be conditions for <br /> determining if maintenance actions are required as identified through inspection. They are not intended to <br /> be measures of the facility's required condition at all times between inspections. In other words, <br /> exceedance of these conditions at any time between inspections and/or maintenance does not <br /> automatically constitute a violation of these standards. However,based upon inspection observations,the <br /> inspection and maintenance schedules shall be adjusted to minimize the length of time that a facility is in <br /> a condition that requires a maintenance action. <br /> Maintenance checklists are provided for the following types of facilities/structures: <br /> Detention Ponds 3 <br /> Infiltration Facilities 6 <br /> Closed Detention Systems(TanIcsNaults) ...... ....... .... . ......................................... . 0 <br /> Control Structure/Flow Restrictor 12 <br /> Catch Basins 14 <br /> Debris Barriers(e.g.,Trash Racks) .. . ._. . .. ... _..................... .. ........_ 17 <br /> Energy Dissipaters 18 <br /> Typical Biofiltration Swale 21 <br /> Wet Biofiltration Swales 23 <br /> Wet Ponds.... ... . . . 25 <br /> Sand Filters(aboveground/open) .33 <br /> Sand Filters(below ground/enclosed) . .. .. . . .............................. .................... <br /> Stonnfilter TM Cast-In-Place,Precast,Linear Stormfilter Units and Catch Basin Units......-.....,.37 <br /> Baffle Oil/Water Separators(American Petroleum Institute[API]Type) <br /> Coalescing Plate Oil/Water Separators ................. .. ........ ....... .... .... 41 <br /> Fencing/Shrubbery Screen/Other Landscaping 43 <br /> Gates 44 <br /> Appendices <br /> F-I <br />