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THE ENCLAVE AT GEM LAKE DEVELOPMENT STORMWATEIrR. MANAGEMENT OPERATION & MAINTENANCE PLAN INFILTRATION BASIN REQUIREMENTS Fist Year After Planting: Adequate water is crucial to plant survival. Provide temporary irrigation as needed unless rainfall is adequate, until plants mature As Neededa * Prune and weed to maintain appearance. * Stabilize or replace sail and vegetation when erosion is evident • Remove trash and debris ■ Replace vegetation whenever percent cover of acceptable vegetation falls below 90 percent or project specific performance requirements are not met, If vegetation suffers for no. apparent reason; consult with horticulturist and/or test soil as needed semi -Annually: * Inspect inflow -and pretreatment systems for clogging (off-line systems) and remove any sediment * Herbaceous.. vegetation, .trees and shrubs should be inspected to evaluate their health and replanted` as appropriate * Remove any dead or severely.diseased .vegetation Annually in Fail: * Inspect and remove any sediment and debris build-up in pretreatment areas ■ Inspect inflow points and infiltration surface. far. buildup of road. sand associated with spring melt period, remove as necessary, and replant areas that.have been impacted by.sand/salt build up Annually in Spring: Cutback and remove. previous year's plant material and remove accumulated leaves if heeded WET DETENTION BASIN SPECIIFiic REQUIREMENTS ■ Inspect annually during winter freeze periods to look for signs of improper operation. ■ Remove sediment in the permanent pool occur. every2 to 7 years :or after 50 percent of total permanent pool capacity has been lost, In areas where road sand is. used, an inspection of the permanent pool should be scheduled. after the spring melt to determine if clean -out is necessary. • Mow the pond buffer periodically afong maintenance right-of-ways and the embankment.. Manage .the.. remaining buffer as a meadow (mowing every other yeas),. prairie, or forest. • Periodically, the outleticontrol structure may clog with debris. Debris should be refrioved and disposed of outside of the facility limits. Reference: MPG4 Stormwater Manual