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MnDOT Contract No.: 1060495 <br />-9- <br />Payable DCP and State Encumbering and Paying TH Portion <br />treatment ponds. Routine maintenance includes, but is not limited to, removing litter, clearing ice, <br />mowing and vegetation management, minor erosion repairs, fencing repairs, sediment and debris <br />removal from structural pollution control or pre-treatment devices, and utility relocates. Non-routine <br />maintenance includes, but is not limited to, sediment removal beyond pre-treatment sediment <br />removal, major erosion, structure, pipe, and drain tile repair, and clearing drain tile. The owner of the <br />stormwater management facility will determine when non-routine maintenance is required. The State, <br />the City, and the County may recalculate the contributing drainage area flows at the time the non- <br />routine maintenance occurs. Contributing areas for the City of Grant will be assigned to the County for <br />the purpose of calculating contributing areas. <br /> <br />The County's contributing water volume entering into the ponds at the time the ponds were designed <br />is 41% for Shamrock Infiltration Basin, 67% for Mouchet Wet Pond. The City's contributing water <br />volume entering into the ponds at the time the ponds were designed is 54% for Ziertman Wet Pond <br />and Kelvin Infiltration Basin. <br />7.2. County Ownership Responsibilities <br />A. The County will be responsible for ownership, routine, and non-routine maintenance of the Elmo <br />Infiltration Basin and David Wet Pond stormwater treatment ponds. Routine maintenance includes, <br />but is not limited to, removing litter, clearing ice, mowing and vegetation management, minor erosion <br />repairs, fencing repairs, sediment and debris removal from structural pollution control or pre- <br />treatment devices, and utility relocates. Non-routine maintenance includes, but is not limited to, <br />sediment removal beyond pre-treatment sediment removal, major erosion, structure, pipe, and drain <br />tile repair, and clearing drain tile. The owner of the stormwater management facility will determine <br />when non-routine maintenance is required. The State, the City, and the County may recalculate the <br />contributing drainage area flows at the time the non-routine maintenance occurs. Contributing areas <br />for the City of Grant will be assigned to the County for the purpose of calculating contributing areas. <br /> <br />The State's contributing water volume entering into the ponds at the time the ponds were designed is <br />18% for Elmo Infiltration Basin and David Wet Pond. The City's contributing water volume entering into <br />the ponds at the time the ponds were designed is 8% for Elmo Infiltration Basin and David Wet Pond. <br />7.3. City Ownership Responsibilities <br />A. The City will be responsible for ownership, routine, and non-routine maintenance of Keats Wet Pond <br />stormwater treatment ponds. Routine maintenance includes, but is not limited to, removing litter, <br />clearing ice, mowing and vegetation management, minor erosion repairs, fencing repairs, sediment and <br />debris removal from structural pollution control or pre-treatment devices, and utility relocates. Non- <br />routine maintenance includes, but is not limited to, sediment removal beyond pre-treatment sediment <br />removal, major erosion, structure, pipe, and drain tile repair, and clearing drain tile. The owner of the <br />stormwater management facility will determine when non-routine maintenance is required. The State, <br />the City, and the County may recalculate the contributing drainage area flows at the time the non- <br />routine maintenance occurs. Contributing areas for the City of Grant will be assigned to the County for <br />the purpose of calculating contributing areas. <br /> <br />The State's contributing water volume entering into the ponds at the time the ponds were designed is <br />37% for Keats Wet Pond. The County's contributing water volume entering into the ponds at the time <br />the ponds were designed is 0% for Keats Wet Pond. <br />7.4. Shared Ownership Responsibilities