2019-11-21_REVISION - M2004044 (45)

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WETLAND DETERMINATION DATA FORM—Great Plains Region Project/Site: Tucson South Mine City/County: Brighton/Adams Sampling Date: 07/06/2017 Applicant/Owner: Aggregate Industries State: CO Sampling Point: TM-Al 1-UPO Investigator(s): C. Ansari, J. Heule Section,Township, Range: 1, T01 S, R67W Landform(hillslope,terrace,etc.): Valley floor Local relief(concave,convex, none): None Slope(%): 0.5 Subregion(LRR): Western Great Plains (G) Lat: 39.990025 Long: -104.843406 Datum: WGS 84 Soil Map Unit Name: Wet alluvial land NWI classification: N/A Are climatic/hydrologic conditions on the site typical for this time of year? Yes X No (If no,explain in Remarks.) Are Vegetation Soil or Hydrology significantly disturbed? Are"Normal Circumstances"present? Yes X No Are Vegetation Soil or Hydrology naturally problematic? (If needed,explain any answers in Remarks.) SUMMARY OF FINDINGS— Attach site map showing sampling point locations,transects, important features,etc. Hydrophytic Vegetation Present? Yes No X Is the Sampled Area Hydric Soil Present? Yes No X within a Wetland? Yes No X Wetland Hydrology Present? Yes No X Remarks:Plot paired with TM-Al 1-WT-01. VEGETATION — Use scientific names of plants. Absolute Dominant Indicator Dominance Test worksheet: Tree Stratum (Plot size: 30' ) %Cover Species? Status Number of Dominant Species 1. None That Are OBL, FACW,or FAC 2 (excluding FAC-): 1 (A) 3. Total Number of Dominant 4 Species Across All Strata: 4 (B) 0 =Total Cover Percent of Dominant Species Sapling/Shrub Stratum (Plot size: 15 ) That Are OBL, FACW,or FAC: 25 (A/B) 1. None 2 Prevalence Index worksheet: 3. Total%Cover of: Multiply by: 4 OBL species x 1 = 5 FACW species x 2= 0 =Total Cover FAC species x 3= Herb Stratum (Plot size: 5' ) FACU species x 4= 1. Rumex crispus 10 Y FAC UPL species x 5= 2. Convolvulus arvensis 25 Y UPL Column Totals: (A) (B) 3. Bassia scoparia 10 Y FACU 4. Sisymbrium altissimum 10 Y FACU Prevalence Index =B/A= 5. Bromus tectorum 5 N UPL Hydrophytic Vegetation Indicators: 6. Alyssum desertorum 5 N UPL — 1 -Rapid Test for Hydrophytic Vegetation 7 — 2-Dominance Test is>50% 3-Prevalence Index is<-3.0' 8. — 9 — 4-Morphological Adaptations' (Provide supporting data in Remarks or on a separate sheet) 10. _ Problematic Hydrophytic Vegetation' (Explain) 65 =Total Cover Woody Vine Stratum (Plot size: 30' ) 'Indicators of hydric soil and wetland hydrology must 1. None be present,unless disturbed or problematic. 2. Hydrophytic 0 =Total Cover Vegetation %Bare Ground in Herb Stratum 35 Present? Yes No X Remarks: US Army Corps of Engineers Great Plains-Version 2.0