Operation Maintenance and Repair Plan Rain Garden

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1 Operation Maintenance and Repair Plan Property Owner / Operator Unit wall system Minimum 1 Repair, replace, reset, soil mix and mulch to remove gullies when erosion is evident. Replenish soil mix and mulch as experiencing hardship. Perennials may be cut Evaluate structural integrity of the wall system. Repair, replace as necessary. (with wall) Maintenance

2 Operation Maintenance and Repair Plan Porous Sidewalk / Street Trees Porous concrete Pavement surface Surface inlets, pipe connections, underdrain Surrounding surfaces Plant Material Winter maintenance As needed Check for raveling, clogging, declivities. Clear debris by sweeping or vacuuming. Consult porous paving expert for repair of potholes or other damage. Check inspection ports, verify that no obstructions to flows exist. Cleanout debris, sediment deposits in inlets draining to the underdrain system. Maintain stable surfaces adjacent to porous surface. Sweep debris, reseed, replant or mulch areas to reduce sediment or other debris from clogging porous surfaces. recommended plant list. Water plants if experiencing hardship during drought. Clear leaf litter. Clear snow by sweeping or plowing. Set plow blade high to leaf a skiff of snow, and to protect the surface from gouging. Salt or synthetic deicing product is NOT required. Porous Concrete (with trees) Maintenance

3 Operation Maintenance and Repair Plan City, State. Zip Code Concrete curb with curb cuts Minimum 1 Repair, replace, reset, soil mix and mulch to remove gullies when erosion is evident. Replenish soil mix and mulch as experiencing hardship. Perennials may be cut Evaluate structural integrity of the curb system. Repair, replace as necessary. (with concrete curb cuts) Maintenance

4 Operation Maintenance and Repair Plan Residential Lawn berm Minimum 1 Repair, replace, reset, out gullies, add soil mix and replenish mulch when erosion is evident as experiencing hardship. Perennials may be cut Evaluate structural integrity of the surrounding berm. Repair, replace, reseed as necessary. (residential) Maintenance

5 Operation Maintenance and Repair Plan Water Quality Basin Stormwater conveyance structures including: inlets, outlets, emergency spillways, manholes, endwalls, pipes, riprap Basin displacement, water flow vegetation, outlet structure Annually and after each mowing event. Mow min. 2 times per year Forebay Debris, sediment Grass swales sediment, vegetation, landform Repair, replace, reset, regrout structures as needed within 60 days of inspection. Repair, replace, reset, regrout structures as needed and repair erosion within 60 days of inspection. Maintain 85% vegetated cover. Mow interior basin slopes and embankment. Clear debris within 60 days of inspection. Remove sediment 1 time per year as necessary. Mow interior slopes and embankment to maintain function of forebay. Seasonal mowing as necessary to keep vegetation to max. 5 inch height. Reseed repair any damaged areas, reform swale as needed to maintain designed channel within 60 days of inspection. Water Quality Basin Maintenance

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