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BMP element: <br />Potential problem: <br />How X will remediate the <br />problem: <br />The inlet device: pipe or <br />The pipe is clogged. <br />Unclog the pipe. Dispose of the <br />Swale <br />sediment off-site. <br />The pipe is cracked or <br />Replace the pipe. <br />otherwise damaged. <br />Erosion is occurring in the <br />Regrade the swale if necessary to <br />swale. <br />smooth it over and provide erosion <br />control devices such as reinforced <br />turf matting or riprap to avoid <br />future problems with erosion. <br />The forebay <br />Sediment has accumulated to <br />Search for the source of the <br />a depth greater than the <br />sediment and remedy the problem if <br />original design depth for <br />possible. Remove the sediment and <br />sediment storage. <br />dispose of it in a location where it <br />will not cause impacts to streams or <br />the BMP. <br />Erosion has occurred. <br />Provide additional erosion <br />protection such as reinforced turf <br />matting or riprap if needed to <br />p re - vent future erosion problems. <br />Weeds are present. <br />Remove the weeds, preferably by <br />hand. if pesticide is used, wipe it on <br />the plants rather than spraying, <br />The vegetated. shelf <br />Best professional practices <br />Prune according to best professional <br />show that pruning is needed <br />practices <br />to maintain optimal plant <br />health. <br />Plants are dead, diseased or <br />Determine the source of the <br />dying. <br />problem: soils, hydrology, disease, <br />etc. Remedy the problem and <br />replace plants. Provide a one -time <br />fertilizer application to establish the <br />ground cover if a soil test indicates <br />it is necessary. <br />Weeds are present. <br />Remove the weeds, preferably by <br />hand. if pesticide is used, wipe it on <br />the plants rather than s ra in . <br />The main treatment <br />area <br />Sediment has accumulated to <br />Search for the source of the <br />a depth greater than the <br />sediment and remedy the problem if <br />original design sediment <br />possible. Remove the sediment and <br />storage depth. <br />dispose of it in a location where it <br />will not cause impacts to streams or <br />the BMP. <br />Algal growth covers over <br />Consult a professional to remove <br />50% of the area. <br />and control the algal growth. <br />Cattails, phragmites or other <br />Remove the plants by wiping them <br />invasive plants cover 50% of <br />with pesticide (do not spray), <br />the basin surface. <br />Attachment number 9 <br />F -1 Page 66 <br />