General InfoInvestigator Name(s): Mattina HomeroomCollection Date & Time: Wednesday, May 28, 2014 - 10:00amPresent: OvercastSchool: Champlain ElementaryWatershed: Winooski BasinRiver: Englesby Brook (Lake Champlain Direct Flow)Monitoring Site: Englesby Brook Physical AssessmentEmbeddedness: 0-25%Relative Flow Patterns: Slow-ShallowWater Odor: OdorlessWater Appearance: MuddySurrounding Development or Land Use: ParkResidentialIs there a water treatment plant upstream?: NoDo you see any pipes entering into the river?: YesAppox. Channel Width: 6.00ftAvg. Depth: 0.30ftCurrent Velocity: 0.75ft/secRiver Bottom CompositionBedrock: 0%Boulders: 0%Cobble: 5%Sand, Silt, Clay: 70%Organic Matter (leaves, fallen twigs): 25%Algal GrowthBottom covered by algae: 75%Bank VegetationLeft bank: 50%Right bank: 90%Riparian Vegetation ZoneLeft bank: 25ftRight bank: 50ftOverhead CanopyCanopy Cover: 75%TurbidityTrial 1: 97NTUTrial 2: 97NTUAvg. Turbidity: 97NTU Biotic AssessmentPT Group 1 (Intolerant)Enter the number of each observedStonefly Nymph: 0Mayfly Nymph: 0Caddis Fly Larvae: 1Dobsonfly Larvae: 0Riffle Beetle: 0Water Penny: 0Right-Handed Snail: 0PT Group 2 (Moderately Intolerant)Enter the number of each observedDamselfly Nymph: 0Dragonfly Nymph: 1Sowbug: 0Scud: 1Cranefly Larvae: 1Clams/Mussels: 0Crayfish: 0PT Group 3 (Fairly Tolerant)Enter the number of each observedMidges: 1Black Fly Larvae: 0Planaria: 0Leech: 0PT Group 4 (Very Tolerant)Enter the number of each observedLeft-Handed Snail: 0Aquatic Worms: 1Blood 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: 16.0 Chemical AssessmentTemperatureTrial 1: 15°FTrial 2: 15°FAvg. Temp.: 15°FpHTrial 1: 6.0Trial 2: 6.0Avg. pH: 6.0Orthophosphate PO4-3: 0.10mg/LDissolved Oxygen: 8mg/L