Physical Parameters AssessmentInvestigator Name(s): LCS 5/6Collection Date & Time: Thursday, April 7, 2016 - 12:45pmSchool: Lincoln Community SchoolWatershed: Otter/Lewis BasinRiver: Otter CreekMonitoring Site: LCSSurrounding Development or Land Use: ForestRoad Along BankDo you see any pipes entering into the river?: NoIs there a water treatment plant upstream?: NoCanopy Cover: 0-25%Water Appearance: ClearWater Odor: OdorlessAverage Embeddedness: 0-25%Average Velocity: 0.70m/sExact LocationLatitude: 44.11Longitude: -73.00WeatherPresent: Clear/SunnyPast 48 Hours: OvercastAverage 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: 120.00cm Chemical AssessmentAverage Temperature: 5.00°CAverage pH: 6.50Average Orthophosphate PO4-3: 0.01mg/LAverage Dissolved Oxygen: 14.00mg/L Stream Habitat AssessmentStreambed Composition: Mixture of cobbles, gravels, and sand (3)Streambank Stability: Moderately stable banks – some areas of erosion visible (1)Deepest pool is at least: Chest deep (3)Velocity: Fast – quickly takes objects downstream (2)Riparian Vegetation: Mixture of trees, shrubs, and grasses (3)Riparian Vegetative Zone Width: Buffer zone is between 50 and 100 feet (2)Streambed CoverRock ledges: 1Submerged logs, stumps, or tree roots: 0Large rocks: 1Artificial objects: 0Other: 1Stream 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: 17 Biological AssessmentPT Group 1 (Intolerant)Stonefly Nymph: 22Mayfly Nymph: 31# of Taxa: 53PT Group 2 (Moderately Intolerant)# of Taxa: 0PT Group 3 (Fairly Tolerant)Midges: 1Leech: 1# of Taxa: 2PT 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: 216.00