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FREQUENCY <br /> OF MAINTENANCE ACTIVITIES <br /> INSPECTIONS <br /> Watering is needed twicea week until the plants become established ( commonly <br /> Upon & 8 weeks ) and then as needed during first growing season ( AprilamOctober) , <br /> construction depending on <br /> Removecompletion Remove and replace dead plants . <br /> or • planting . <br /> Mow any bloretention with turf cover to a height of approximately six to eight <br /> inches • remove grass clippings . <br /> Check inlet, collection system and outlet device for clogging . Remove <br /> quarteraccumulated grit, leaves, debris and any other obstructions and dispose offwnsite . <br /> Inspect for ponding and bare or eroding areas and make ad ustments as <br /> Remove trash and /or debris from the bloretention area . <br /> Twice during <br /> , seasonthe growing Pull out weeds and dead , diseased , or invasives plants preferably by hand . <br /> For bioretention areas without turf cover, supplement triple shredded hard wood <br /> mulch in devoid areas to maintain a maximum 3 inch layer. <br /> e Prune trees and shrubs to best professional practice , Thin vegetation so that <br /> sunlight can penetrate the bloretention <br /> Inspect* Inspect the observation/cleanout wells to ensure that the underdrain is <br /> functioning . If clogging has occurred , wash out the underdrain . <br /> * For bloretention areas without turf cover, remove and replace the mulch layer <br /> ith triple shredded hard wood . The ideal time to reapply mulch is On the late <br /> 9 Conduct a soil test for pH and heavy metals and determine the infiltration rate . <br /> spring . <br /> replanting2vn3 years <br /> * An extensive - • - • if 50% minimum coverage throughout <br /> * Perform facility " make ,mmover" to maintain intended landscaping regime and <br /> basin is not achieved in the bloretention after the second growing season . <br /> address - problems detected during routine • - • <br /> to 7 years <br /> growing • ns ,, the vegetation shouldcoverage . <br /> Vegetation <br /> If the bioretention cell suffers from dead or diseased plants or overgrown with <br /> As Needed <br /> (Typical <br /> and/or type of disease to determine the cause of the plant failure . <br /> Problems ) <br /> o Remediate the problem by selecting new species and /or implementing an <br /> eradication plan for <br />