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Wetland and Stream Delineation Report - Tamsin Ridge Solar and Storage Project

C-1d56a9d4b8 · Page 1 of 3 · DR-0013 · 2023-05-22

The claim, in the assessor's words

Wetland W-5 has no surface connection to a stream and may be an isolated wetland regulated by Ohio EPA alone.

Quoted from page 1
Wetland W-5 has no surface connection to a stream and may be an isolated wetland regulated by Ohio EPA alone.

Source consultant_memo · Claim type regulatory · Polarity presence · Confidence high · Quote check exact, 100 of 100

Cited by PE-02 State Jurisdiction · Filed under AQ-01, PE-02

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Corvane Environmental, Inc. Wetland science, ecology and permitting | Wooster, Ohio | corvane-env.example Wetland and Stream Delineation Report Tamsin Ridge Solar and Storage Project, Harrison Township, Carroll County, Ohio Prepared for Northfold Energy Partners, LLC. May 22, 2023. Corvane project 23-114. Executive summary Corvane Environmental delineated wetlands and streams within the approximately 1,140-acre Project Area from April 17 to 21, 2023, using the 1987 Corps of Engineers Wetlands Delineation Manual and the Eastern Mountains and Piedmont Regional Supplement. Streams were assessed with Ohio EPA's Headwater Habitat Evaluation Index (HHEI) and Qualitative Habitat Evaluation Index (QHEI); wetlands were categorized with the Ohio Rapid Assessment Method (ORAM). Five wetlands totaling 9.8 acres were delineated: two palustrine emergent (PEM), one palustrine scrub-shrub (PSS) and two palustrine forested (PFO) wetlands. Wetland W-3, a 4.1-acre forested wetland on the Sallow Creek floodplain in Parcel 9, scored 66 on ORAM and is a Category 3 wetland. The other four are Category 1 or Category 2. Sallow Creek, a perennial stream, flows north to south through the middle of the Project Area for about 6,850 linear feet, between the West Block and the East Block. Four unnamed tributaries were delineated: S-1 and S-2 (intermittent) and S-3 and S-4 (ephemeral), totaling 9,420 linear feet. The National Wetlands Inventory (NWI) and the National Hydrography Dataset (NHD) map Sallow Creek and S-1; the other features were found in the field. Sallow Creek and its tributaries are likely waters of the United States under Section 404 of the Clean Water Act, regulated by the U.S. Army Corps of Engineers, Huntington District. Quote starts. Wetland W-5 has no surface connection to a stream and may be an isolated wetland regulated by Ohio EPA alone. Quote ends. Recommendations in brief • Avoid all delineated wetlands and keep the buffers ODNR expects for solar facilities: 300 feet from W-3 (Category 3) and 120 feet from the Category 1 and 2 wetlands. • Cross Sallow Creek with the two collection line crossings by horizontal directional drilling (HDD), with a frac-out contingency plan. • Cross ephemeral stream S-4 with the East Block access road on a culvert sized for the 25-year storm, under Nationwide Permit 14; impacts are expected to be below 0.1 acre. • Request a preliminary jurisdictional determination before the OPSB application is filed. Corvane Environmental, Inc. - Project 23-114 Page 1 of 3

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Page 1 of Wetland and Stream Delineation Report - Tamsin Ridge Solar and Storage Project

Other claims quoted on this page

  • C-a0386d398c

    Five wetlands totaling 9.8 acres were delineated in the Project Area: two PEM, one PSS and two PFO.

  • C-3d096bbe0e

    Wetland W-3, a 4.1-acre forested wetland on the Sallow Creek floodplain in Parcel 9, is a Category 3 wetland (ORAM 66).

  • C-8644116b06

    Sallow Creek, a perennial stream, flows through the middle of the Project Area for about 6,850 linear feet.

  • C-e5bfe1d5f5

    Four unnamed tributaries were delineated (two intermittent, two ephemeral), totaling 9,420 linear feet.

  • C-786ca1992e

    Recommended to avoid all delineated wetlands with ODNR-expected buffers: 300 feet from W-3 and 120 feet from Category 1 and 2 wetlands.

  • C-8b50a6949e

    Cross ephemeral stream S-4 with the East Block access road on a culvert under Nationwide Permit 14, with impacts expected below 0.1 acre.

  • C-8deff0ea95

    A preliminary jurisdictional determination should be requested before the OPSB application is filed.

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