V4 12 Stormwater Maintenance Manual

• The detention basins shall be inspected and monitored for mosquito breeding conditions. If significant mosquito breeding is observed, the Essex County Department of Public Works-Mosquito Control shall be contacted at (973) 239- 0342. E. ACCESS • Access to the detention basins is shown on Figure 1 in the Appendix of this Manual. IV. MAINTENANCE COST ESTIMATE Sub-Surface Detention Basins ………………………………$1,500 – $2,000 per year Surface Detention Basins…….…………………..……………….…....$1,500 per year Green Roof……………………………………………………………..$1,000 per year Maintenance cost estimate includes all maintenance tasks, including seed, equipment, sediment, trash and debris removal. Maintenance cost estimates are based on engineering assumptions, manufacturer’s recommendations as well as the relative frequency of maintenance. Actual costs may differ from estimate. V. APPENDIX TABLE 4 – 1 SUMMARY OF MAINTENANCE PROCEDURES TABLE 4 – 2 MAINTENANCE EQUIPMENT AND MATERIALS TABLE 4 – 3 MAINTENANCE WORK ORDER AND CHECKLIST TABLE 4 – 4 MAINTENANCE LOG TABLE 4 – 5 INSPECTION CHECKLIST TABLE 4 – 6 INSPECTION LOG EXHIBIT 1 GREEN ROOF MAINTENANCE GUIDE 7