2018-11-21_REVISION - M2004044 (26)

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2017 Wetland Delineation Report Tucson South Sand and Gravel Mine—Brighton,Colorado Table 3. Delineated Wetlands in the Project Area Wetland Approximate Likely Jurisdictional Number Acreage Latitude Longitude Status' A10 0.76 39.989971 -104.836905 Non-Jurisdictional All 1.00 39.988956 -104.843833 Non-Jurisdictional Al2 0.47 39.989988 -104.843286 Non-Jurisdictional A13 0.02 39.991824 -104.841724 Non-Jurisdictional A14 0.06 39.991941 -104.841707 Non-Jurisdictional A16 10.19 1 39.992437 -104.842122 Non-Jurisdictional Note that only the USACE can render an approved Jurisdictional Determination (JD). The likely jurisdictional status listed in Table 3 only reflect Tetra Tech's understanding of Jurisdictional Waters of the United States. Without a USACE rendered jurisdictional determination, impacts should be avoided to these wetlands. 4.2 Other WOTUS Results 4.2.1 Streams A total of six stream features were recorded during the field survey. Stream Al, South Platte River, is a perennial water feature that is considered a traditional navigable water and is jurisdictional. The remainder of the stream features draw water either directly or indirectly from the South Platte River but do not drain into the river or other potential WOTUS. Therefore, the rest of the streams are identified as likely non-jurisdictional. Table 4 provides a summary of the stream features noted in the Project Area. Stream forms are included in Attachment 3. Table 4. Streams in the Project Area Approximate Likely Stream Acreage in Jurisdictional Number Stream Name Project Area Latitude Longitude Status' Al South Platte River 3.79 39.990557 -104.833057 Jurisdictional A8 Unnamed 0.03 39.990653 -104.834511 Non-Jurisdictional A17 Unnamed 0.06 39.989971 -104.836905 Non-Jurisdictional A18 Brighton Ditch 1.29 39.988956 -104.843833 Non-Jurisdictional A23 Unnamed 0.96 39.991824 -104.841724 Non-Jurisdictional A25 Unnamed 0.06 39.991941 -104.841707 Non-Jurisdictional Note that only the USACE can render an approved Jurisdictional Determination (JD). The likely jurisdictional status listed in Table 3 only reflect Tetra Tech's understanding of Jurisdictional Waters of the United States. Without a USACE rendered jurisdictional determination,impacts should be avoided to these wetlands. 4.2.2 Ponds One pond was observed during field surveys (Table 5). The pond was observed to have surface water and a wetland fringe around the edge of the entire pond. This feature has no connection to a WOTUS and is likely non-jurisdictional. 10