Laserfiche WebLink
CITY OF EVERETT STORMWATER MANAGEMENT MANUAL <br /> Date <br /> Drainage <br /> System Maintenance Activities and Conditions <br /> Frequency Feature ✓ ✓ ✓ ✓ Problem Conditions to Check For That Should Exist <br /> A Emergency Erosion Erosion damage over 2 inches deep where Slopes should be stabilized using appropriate <br /> Overflow/ cause of damage is still present or where there erosion control measure(s); e.g., rock <br /> Spillway is potential for continued erosion. reinforcement, planting of grass, compaction. <br /> Any erosion observed on a compacted berm If erosion is occurring on compacted berms a <br /> embankment. licensed civil engineer should be consulted to <br /> resolve source of erosion. <br /> M Presettling Facility or sump 6 inches or designed sediment trap depth of Sediment is removed. <br /> Ponds and filled with Sediment sediment. <br /> Vaults and/or debris <br /> If you are unsure whether a problem exists, please contact a professional engineer. <br /> KeV., <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 /> Appendices <br /> F-9 <br />