General InfoInvestigator Name(s): U-32 3 E-Coli = 88.5Collection Date & Time: Tuesday, September 24, 2013 - 10:00amPresent: Clear/SunnySchool: U32 High SchoolWatershed: Winooski BasinRiver: Winooski RiverMonitoring Site: Site 4Latitude: 44.140000Longitude: -72.310000 Physical AssessmentEmbeddedness: 26-50%Relative Flow Patterns: Fast-DeepWater Odor: OdorlessWater Appearance: Tea-coloredClearSurrounding Development or Land Use: FarmIs there a water treatment plant upstream?: YesDo you see any pipes entering into the river?: NoAppox. Channel Width: 30.00ftAvg. Depth: 1.30ftCurrent Velocity: 2.10ft/secRiver Bottom CompositionBedrock: 1%Boulders: 50%Cobble: 20%Sand, Silt, Clay: 20%Organic Matter (leaves, fallen twigs): 9%Algal GrowthBottom covered by algae: 50%Bank VegetationLeft bank: 5%Right bank: 30%Riparian Vegetation ZoneLeft bank: 30ftRight bank: 2 000ftOverhead CanopyCanopy Cover: 30%TurbidityAvg. Turbidity: 6NTU Biotic AssessmentPT Group 1 (Intolerant)Enter the number of each observedStonefly Nymph: 16Mayfly Nymph: 9Caddis Fly Larvae: 24Dobsonfly Larvae: 12Riffle Beetle: 0Water Penny: 8Right-Handed Snail: 0PT Group 2 (Moderately Intolerant)Enter the number of each observedDamselfly Nymph: 0Dragonfly Nymph: 3Sowbug: 0Scud: 0Cranefly Larvae: 0Clams/Mussels: 0Crayfish: 2PT Group 3 (Fairly Tolerant)Enter the number of each observedMidges: 2Black Fly Larvae: 0Planaria: 0Leech: 0PT Group 4 (Very Tolerant)Enter the number of each observedLeft-Handed Snail: 0Aquatic Worms: 0Blood Midge: 0Rat-Tailed Maggot: 0Pollution Tolerance Index Rating= 4*(Total # in PT Group 1) + 3*(Total # in PT Group 2) + 2*(Total # in PT Group 3) + 1*(Total # in PT Group 4) 23+ (Excellent) 17-22 (Good) 11-16 (Fair) 10 > (Poor) PT Index Rating: 28.0 Chemical AssessmentTemperatureTrial 1: 55°FTrial 2: 55°FAvg. Temp.: 55°FpHTrial 1: 7.0Trial 2: 7.0Avg. pH: 7.0Orthophosphate PO4-3: 0.07mg/LDissolved Oxygen: 9mg/L