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Chapter 153 Water Resource Management Adopted 6/28/2022 <br /> Page 24 of 34 <br />(5)If sediment has been discharged downstream as a result of the project, it may need to be removed <br />and the area restored. <br />(6)Energy dissipation may be needed <br />(C)Projects which involve slip-lining culverts: <br />(1)The project must maintain the hydraulic capacity of the existing structure to the extent practicable. <br />(D)Projects which use chip seal pavement surface treatment: <br />(1)Inlet protection must be used on any structures that may be affected by the project; <br />(2)If any material has been discharged downstream as a result of the project, it may need to be <br />removed and the area restored. <br />(E)Projects which involve horizontal drilling and are within sensitive areas (utility maintenance and <br />construction projects that part of a larger plan of development are exempt): <br />(1)If drillers mud has been discharged downstream or into a surface water as a result of the project, it <br />may need to be removed and the area restored. <br />(F)Projects which maintain or restore the function of stormwater BMPs by replacing structures or filtration <br />media, dredging, grading, or other activities beyond routine maintenance (ie. sediment removal, trash <br />removal, vegetation management). <br />(1)Record drawings documenting the elevations of structures, inverts, basin bottoms, and/or other <br />relevant details must be collected before and after the maintenance activity is performed and sent <br />to the county. <br />(2)If the project results in a loss of BMP function, work to restore the function of the BMP will be <br />required (restoring approved elevations, etc.). <br />§ 153.59 SURFACE WATER PROTECTION AND SETBACK STANDARDS. <br />(A)Wetland Conservation Act Implementation. Carver County adopts and incorporates by reference the <br />Minnesota Wetland Conservation Act and its implementing rules as set forth in Minn. Rules chapter <br />8420, as amended periodically. <br />(B)Transition setbacks for surface water protection <br />(1)Requirement. Establishment or preservation of an unmanicured, vegetated, transition setback <br />adjacent and contiguous to wetlands, lakes, streams, rivers, and public and private ditches is <br />required for projects meeting the thresholds described in § 153.43. For projects where the <br />construction activity does not occupy the full parcel, the requirement for setbacks applies only to the <br />portion of the parcel where construction activity is taking place. <br />(2)Exempt Activities. Activities meeting the exemption requirements of Minnesota Rule 8420 are <br />exempt from these requirements. Wetlands or portions of wetlands impacted and mitigated through <br />Minnesota Rule 8420 are exempt from these setback requirements. <br />(3)Determining setback widths.