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<br />EXHIBIT C <br /> <br />WESTPOINT MARINA <br />INFILTRATION TRENCH <br />MAINTENANCE OBJECTIVES <br /> <br />The primary maintenance objective is to prevent clogging, which may lead to trench <br />failure. Typical inspection and maintenance tasks are as follows: <br />. Inspect infiltration trench after large storm events and remove any accumulated <br />debris or material. <br />. Check the observation well 2 to 3 days after storms to confirm drainage. <br />. Repair any erosion at inflow or overflow structures. <br />. Conduct thorough inspection annually, including monitoring of the observation <br />well to confirm that the trench is draining within the specified time. <br />. Trenches with filter fabric should be inspected annually for sediment deposits by <br />removing a small section of the top layer. <br />. If inspection indicates that the trench is partially or completely clogged, it shall <br />be restored to its design condition. <br />. Mow and trim vegetation around the trench as needed to maintain a neat and <br />orderly appearance. <br />. The use of pesticides and quick-release synthetic fertilizers shall be minimized, <br />and the principles of integrated pest management (IPM) followed. Check with the <br />local jurisdiction for any local policies regarding the use of pesticides and <br />fertilizers. <br />. Routinely remove trash, grass clippings and other debris form the trench <br />perimeter and dispose of these materials properly. Trees or other large vegetation <br />should be prevented from growing adj acent to the trench to prevent damage to the <br />trench. <br />