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6.1.D. - Page 18 <br /> Exhibit C <br /> HI. Stormwater Treatment Maintenance Information: <br /> The following stormwater treatment maintenance information is provided for the <br /> treatment measures listed above: <br /> Rio-Retention Areas <br /> Defect Maintenance Is Needed If Maintenance to be Performed <br /> Sediment Sediment depth exceeds 2 inches, Remove sediment, There should be no <br /> Accumulation on areas of standing water once inflow has <br /> Vegetation ceased, <br /> Standing Water Water stands in the treatment area or Remove sediment,trash blockages.Remove <br /> swale between storms and does not drain blockage from sub-drain lines as required. <br /> freely. <br /> Poor Vegetation Planted vegetation is sparse or bare or Replant so more than 90%of the bottom is <br /> Coverage eroded patches occur in more than 10%of covered with vegetation. Determine why <br /> the bottom of the treatment area or swale. growth of planted vegetation is poor and <br /> correct that condition, <br /> Overgrown Planted vegetation becomes excessively Mow Vegetation per maintenance plan. <br /> Vegetation tall,Nuisance weeds and other vegetation Remove nuisance vegetation so that flow is <br /> start to take over. not impeded. Remove clippings from the <br /> treatment area or swale and dispose of <br /> appropriately. <br /> Excessive Vegetation is not thriving because Trim back over-hanging limbs and remove <br /> Shading sunlight does not reach the treatment area brushy vegetation on adjacent slopes. <br /> or swale. <br /> Inlet/Outlet Inlet/outlet areas are clogged with Remove material that is clogging inlet and <br /> sediment and/or debris. outlet areas. <br /> Trash and Debris Trash and debris have accumulated in the Remove trash and debris. <br /> Accumulation treatment area or swale. <br /> Overflow Drains and Storm Drain Lines <br /> Defect Maintenance Is Needed If: Maintenance to be Performed <br /> Sediment Sediment depth exceeds 2 inches. Remove sediment. Dispose of sediment <br /> Accumulation properly. <br /> Trash and Debris Trash and debris have accumulated in the Remove trash and debris. <br /> Accumulation drains. <br /> Standing Water Water stands in the area around a drain. Remove blockage from storm drain line. <br /> Sub-drain Lines <br /> Defect Maintenance Is Needed If: Maintenance to be Performed <br /> Standing Water Water stands in the pervious paver patio Remove blockage from sub-drain line. <br /> area. <br /> Page 3 of 6 <br /> ATTYIAGR/2015,238/1771-1775 E.BAYSHORE STMMA <br /> REV:10-21-15 VR <br />