2018-11-21_REVISION - M2004044 (20)

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GENERAL ID Stream ID TM-A23-STR-01 Stream Name: Unnamed Canal Lat: 39.98525 Long: -104.84062 Date: 7-7-2017 Project Name: Tucson South Mine Client:Aggregate Industries Investigators: J. Heule, C. Ansari Flow Regime: Intermittent Water T e: RPW Photo ID: CHANNELFEATURES Estimate Measurements Stream Erosion Top of Bank Width(feet): 1 20 Stream Erosion: Moderate Top of Bank Height(feet): 15 Artificial, Modified, or Channelized: Yes LB (feet): 18 Dam Present: No RB (feet): 15 Sinuosity: Low Water Depth in.): 2ft. Gradient: Flat 0.5-100ft Water Width (feet): 5ft High Water Mark(inches): 3ft. FLOW CHARACTERISTICS Water Present: Flowing Water Proportion of Reach Re resented by Stream Morphology Types: Velocity: Moderate Riffle(%): 10 Pool(%): Run (%): 90 Turbidity: Turbid Other: SUBSTRATE COMPONENTS Inorganic Substrate Components—Should add to 100% Or anic Substrate Components—Does not necessarily add to 100% %Composition in % Composition in Substrate Type Diameter Sampling Reach Substrate Type Characteristic Sampling Reach Bedrock Detritus Sticks, wood, coarse plant materials CPOM Boulder >256mm (10") Muck—Mud Black, very fine grain organic Cobble 64-256mm 2.5"-10" Marl Grey, shell fragments Gravel 2-64mm 0.1"-2.5" 50 Sand 0.06-2mm (gritty) 30 Silt 0.004-0.06mm 20 Clay <0.004mm slick WATERSHED FEATURES Predominant Surrounding Land Use: ❑ Forest Industrial (gravel quarry) ® Field/Pasture ❑ Residential ® Agricultural Other: ® Commercial Indicate the dominant type: ® Trees ❑ Grasses 21 Shrubs ❑ Herbaceous Canopy Cover: Open Floodplain Width: Moderate(15-30 ft) I Wetland Present: ❑ Yes ® No Wetland ID: AQUATIC VEGETATION Indicate the dominant type and record the dominantspecies resent: Rooted emergent ❑ Rooted --I Rooted floating ❑ Free floating submer ent ❑ Floating algae -I Attached algae ❑ None ❑ Reed canary grass MACROINVERTEBRATES OR OTHER WILDLIFE OBSERVED/OBSERVATIONS AND NOTES Man-made canal.