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f <br /> 2017 Wetland Delineation Report <br /> Tucson South Sand and Gravel Mine—Brighton,Colorado <br /> associated with the South Platte River. The South Platte River is a perennial water and is <br /> considered a traditionally navigable water(TNW). <br /> 4.1.3 Wetland TM-A10-WT <br /> Wetland TM-A10-WT(Wetland A10) is a palustrine emergent wetland located on the west side of <br /> the Project and adjacent to Brighton Ditch (TM-A18-STR-01). Wetland A10 is a fringe wetland <br /> surrounding a small pond. The mapped area for this wetland includes the pond area. Vegetation <br /> in the wetland sample plot was dominated by reed canary grass (Phalaris arundinacea, FACW) <br /> and narrowleaf cattails. Soils in the wetland plot were clays which qualified for the hydric soil <br /> indicator Hydrogen Sulfide Odor (A4). Hydrologic indicators included Surface Water (Al), High <br /> Water Table (A2), Saturation (A3), Hydrogen Sulfide Odor (Cl), and FAC-Neutral Test (D5). <br /> Wetland A10 is approximately 0.76 acre. The wetland is not likely a jurisdictional WOTUS <br /> because there is no connection to a TNW. While the feature is immediately adjacent to the <br /> Brighton Ditch and the ditch draws water from the South Platte River, the ditch flows north <br /> eventually terminating in an upland setting. <br /> 4.1.4 Wetland TM-All-WT <br /> Wetland TM-Al1-WT(Wetland Al 1) is a palustrine emergent wetland located on the west side of <br /> the Project. Piles of material nearby were observed indicating the wetland is likely man made. <br /> Wetland All is a fringe wetland surrounding a small pond. The mapped area for this wetland <br /> includes the pond area. Vegetation in the wetland sample plot was dominated by plains <br /> cottonwood in the tree stratum with peachleaf willow and coyote willow (Salix exigua, FACW) <br /> dominating the shrub stratum. The dominate vegetation in the herb stratum is Canada thistle <br /> (Cirsium arvense, FACU) and broadleaf cattail (Typha latifolia, OBL). Soils in the wetland plot <br /> were a silty clays which qualified for the hydric soil indicator Hydrogen Sulfide Odor (A4). <br /> Hydrologic indicators included High Water Table (A2), Saturation (A3), Hydrogen Sulfide Odor <br /> (Cl), Geomorphic Position (D2) and FAC-Neutral Test (D5). Wetland Al is approximately 1.00 <br /> acre. The wetland is not likley jurisdictional because there is no clear connectivity to a WOTUS. <br /> 4.1.5 Wetland TM-AUMT <br /> Wetland TM-Al2-WT(Wetland Al2) is a palustrine emergent wetland located on the west side of <br /> the Project. Wetland Al appears to be a man-made feature created when an area of upland was <br /> excavated approximately 6 feet deep and below the water table. Piles of material nearby were <br /> observed indicating the wetland is likely man made. Vegetation in the wetland sample plot was <br /> dominated by coyote willow in the shrub stratum with annual rabbits-foot grass (Polypogon <br /> monspeliensis, FACW) and oak-leaf goosefoot (Chenopodium glaucum, FAC) dominate in the <br /> herb stratum. Soils in the wetland plot were a sands which qualified for the hydric soil indicator <br /> Hydrogen Sulfide Odor (A4). Hydrologic indicators included Hydrogen Sulfide Odor (Cl), <br /> Drainage Patterns (B10) and FAC-Neutral Test (D5). Wetland Al2 is approximately 0.47 acre. <br /> The wetland is not likely jurisdictional because there is no clear connectivity to a WOTUS. <br /> 8 <br />