2020-06-09-minutes-solid-waste-and-maintenance

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8c. Have you prepared a mitigation plan to compensate for the project's adverse impacts to non-wetland waterbodies?hj elo • If Yes, submit the plan with the JARPA package and answer 8d. • If No, or Not applicable, explain below why a mitigation plan should not be required. 2 Yes ❑ No ❑ Don't know 8d. Summarize what the mitigation plan is meant to accomplish. Describe how a watershed approach was used to design the plan. • If you already completed 7g you do not need to restate your answer here. hf elpl The primary function of all ditches on site is flow conveyance. The mitigation plan is intended to replace this function lost through fill of ditches D1, D2, and D4 by relocating flow from these ditches to a new ditch to be constructed along the northern and eastern perimeter of the site. The plan also includes planting of riparian vegetation adjacent to the replacement ditch, thereby increasing habitat value of this waterway. Ditch D12 will be relocated to the north of the southern property boundary. The relocated ditches will replace lost functions at a ratio of at least 1:1. 8e. Summarize impact(s) to each waterbody in the table below.hf elpl Activity (clear, Waterbody Impact Duration Amount of material Area (sq. ft. or dredge, fill, pile name' location of impact3 (cubic yards) to be linear ft.) of drive, etc.) placed in or removed waterbody from waterbody directly affected Fill Ditch D1 In Permanent 2,460 cy 47,000 sf Fill Ditch D2 In Permanent 490 cy 3,000 sf Fill Ditch D4 In Permanent 345 cy 5,100 sf Fill Ditch D12 In Permanent 1,750 cy 10,000 sf If no official name for the waterbody exists, create a unique name (such as "Stream 1 ") The name should be consistent with other documents provided. 2Indicate whether the impact will occur in or adjacent to the waterbody. If adjacent, provide the distance between the impact and the waterbody and indicate whether the impact will occur within the 100-year flood plain. 3Indicate the days, months or years the waterbody will be measurably impacted by the work. Enter "permanent" if applicable. 8f. For all activities identified in 8e, describe the source and nature of the fill material, amount (in cubic yards) you will use, and how and where it will be placed into the waterbody. gji 5,045 cubic yards of clean fill material will be placed into the existing channels of ditches D1, D2, D4, and D12. Fill material will consist of structural fill obtained from locally sourced quarries. Placement of fill material will be accomplished utilizing typical earthmoving equipment that may include hydraulic excavators, scrapers, dump trucks, and compactors. ORIA-revised 0212020 Page 9 of 14