Physical Parameters AssessmentInvestigator Name(s): Group 4Collection Date & Time: Monday, May 23, 2016 - 9:30amSchool: Browns River Middle SchoolWatershed: Winooski BasinRiver: Winooski RiverMonitoring Site: Browns RiverSurrounding Development or Land Use: FarmParkResidentialForestDo you see any pipes entering into the river?: NoIs there a water treatment plant upstream?: NoCanopy Cover: 76-100%Water Appearance: ClearTea-coloredWater Odor: OdorlessAverage Embeddedness: 76-100%Average Velocity: 1.20m/sWeatherPresent: Clear/SunnyPast 48 Hours: Clear/SunnyOvercastHeavy RainAverage Transparency/Turbidity No Impact: >60 cm - 17cm = 0-50 ntu Possible Impact: 17 - 8cm = 65-150 ntu Impacted: 8 - < 6 cm = >150 ntu Height of Water Column: 130.00cmTurbidity: 0.00NTU Chemical AssessmentAverage Temperature: 17.00°CAverage pH: 6.50Average Orthophosphate PO4-3: 0.01mg/LAverage Dissolved Oxygen: 11.00mg/L Stream Habitat AssessmentStreambed Composition: Mostly sand and silt (1)Streambank Stability: Moderately stable banks – some areas of erosion visible (1)Deepest pool is at least: Knee deep (1)Velocity: Fast – quickly takes objects downstream (2)Riparian Vegetation: Mixture of trees, shrubs, and grasses (3)Riparian Vegetative Zone Width: Buffer zone is between 25 and 50 feet (1)Streambed CoverRock ledges: 0Submerged logs, stumps, or tree roots: 1Large rocks: 1Artificial objects: 0Other: 0Stream Habitat Quality ScoreCalculated by adding all of the points from the above fields. 18-22 (Excellent) 11-17 (Good) 6-10 (Fair) 0-5 (Poor)Stream Habitat Quality Score for This Report: 11 Biological AssessmentPT Group 1 (Intolerant)Stonefly Nymph: 2Mayfly Nymph: 2Caddis Fly Larvae: 2# of Taxa: 3PT Group 2 (Moderately Intolerant)# of Taxa: 0PT Group 3 (Fairly Tolerant)Midges: 1# of Taxa: 1PT Group 4 (Very Tolerant)# of Taxa: 0Pollution Tolerance Index RatingCalculated as follows: 4*(# of Taxa in PT Group 1) + 3*(# of Taxa in PT Group 2) + 2*(# of Taxa in PT Group 3) + 1*(# of Taxa in PT Group 4) 23+ (Excellent) 17-22 (Good) 11-16 (Fair) 0-10 (Poor) PTI Rating for This Report: 14.00