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BMP Element: Potential Problem: How Property Owner Will Remediate the <br /> Problem: <br />The Bio-retention Cell: Soils Mulch is breaking down or has floated .Spot mulch if there are only random void areas. <br />and Mulch away. Replace whole mulch layer if necessary. <br /> Remove the remaining mulch and replace with <br /> triple shredded hard wood mulch at a maximum <br /> de th of 3 inches. <br /> Soils and/or mulch are clogged with Determine the extent of the clogging. Remove <br /> sediment. and replace either just the top layers or the entire <br /> media as needed. Dispose of the soil in an <br /> appropriate off-site location. Use triple shredded <br /> hard wood mulch at a maximum depth of 3 <br /> inches. Search for the source of the sediment <br /> and remed the roblem if ossible. <br /> An annual soil test shows that pH has Dolomitic lime shall be applied as recommended <br /> dropped or heavy metals have per the soil test and toxic soils shall be removed, <br /> accumulated in the soil media. disposed of properly and replaced with new <br /> lantin media. <br />The Under Drain System (If Clogging has occurred. Wash out the under drain system. <br />Applicable) <br />The Drop. Inlet Clogging has occurred. Clean out the drop inlet. Dispose of the sediment <br /> off-site. <br />_ The dro -inlet is dams ed. Re air or re lace the dro inlet. <br />The Receiving Water Erosion or other signs of damage have Contact the Erosion Control Division of the <br /> occurred at the outlet. Orange County Planning and Inspections <br /> De artment at 919 245-2575. <br />Grassed Swale BMP Operation and Maintenance <br />• The drainage area of the grassed Swale will be carefully managed to reduce the sediment load to the grassed Swale. <br />• After the first-time fertilization to establish the grass in the Swale, fertilizer will not be applied to the grass Swale <br />The grassed swales will be inspected once a quarter. Records of operation and maintenance will be kept in a known set location on <br />the project site and will be available upon request. <br />Inspection activities shall be performed as follows. Any problems that are found shall be repaired immediately. <br />BMP Element: Potential Problem: How Property Owner Will Remediate the <br /> Problem• <br />The Entire Length of the Swale Trash/Debris is present. Remove the trash/debris <br /> Areas of bare soil and/or erosive gullies Re-grade the soil if necessary to remove the <br /> have formed. gully, and then re-sod (or plant with other <br /> appropriate species) and water until established. <br /> Provide lime and aone-time fertilizer <br /> a lication. <br /> Sediment covers. the grass at the bottom Remove sediment and dispose in an area that <br /> of the Swale. will not impact streams or BMPs. Re-sod if <br /> necess <br /> Vegetation is too short or too long. Maintain vegetation at a height of approximately <br /> 6 inches.. <br />The Receiving Water Erosion or other signs of damage have Contact the Erosion Control Division of the <br /> occurred at the outlet. Orange County Planning and Inspections <br /> De artment at (919) 245-2575. <br />Operation and Maintenance Asreement Runs with Property: The terms herein contained are binding on the present owners, and their <br />successors in title and interest, and shall henceforth be appurtenant to, and shall run with the title to said real property. <br />*********************************************s************************************************************** <br />Page 3 of 4 <br />