Physical Parameters AssessmentInvestigator Name(s): Charlotte, Gretta, BenCollection Date & Time: Thursday, October 20, 2016 - 10:30amSchool: University of VermontWatershed: Lake Champlain Direct & Grand Isle BasinsRiver: Potash Brook (Lake Champlain Direct Flow)Monitoring Site: East Woods Surrounding Development or Land Use: FarmParkResidentialForestCropsDo you see any pipes entering into the river?: NoIs there a water treatment plant upstream?: NoCanopy Cover: 51-75%Water Appearance: ClearWater Odor: OdorlessAverage Embeddedness: 51-75%Average Velocity: 0.08m/sExact LocationThis will be used to locate your collection site on our interactive map. You can use this tool if you need help finding the coordinates.Latitude: 44.45Longitude: -73.20WeatherPresent: Clear/SunnyPast 48 Hours: OvercastShowersAverage 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: 120.00cmTurbidity: 10.00NTU Chemical AssessmentResults: Temperature: 11 degrees celsius pH: 6.5 Orthophosphate: 0.297 mg/L Dissolved Oxygen: 10 mg/L Stream Habitat AssessmentGood Habitat: Score of 80 to 60 ----- Fair Habitat: Score of 59 to 40 ----- Poor Habitat: Score of 39 to 0Substrate Habitat Types: Trees that have fallen into riverSubmerged logsUndercut banksCobble or larger rocksOther stable substrate materialsSubstrate Habitat Types (Score): > 70% has mix of stable habitat types (8)Embeddedness: 50 to 75% embedded; rocks are mostly buried (4)Sediment Deposition: > 50% of riverbed changing frequently (2)Velocity / Depth Types: Slow & shallowVelocity / Depth Types (Score): 2 velocity/depth types present (4)Channel Flow Status: Water fills > 75% of channel; < 25% of substrate exposed (6)Channel Alteration: Alteration minimal; river with natural pattern (4)Frequency of Riffles: Occurrence of riffles common (3)Bank Stability (Left Bank): Somewhat unstable; 30 to 60% eroded or collapsed (2)Bank Stability (Right Bank): Moderately stable; 5 to 30% eroded or collapsed (3)Riparian Vegetation (Left Bank): 70 to 90% covered by natural vegetation (3)Riparian Vegetation (Right Bank): 70 to 90% covered by natural vegetation (3)Riparian Zone Width (Left Bank): Width > 18 meters; no human impact (4)Riparian Zone Width (Right Bank): Width > 18 meters; no human impact (4)Stream Habitat Quality ScoreCalculated by adding all of the points from the above fields. 60-80 (Good) 40-59 (Fair) 0-39 (Poor)Stream Habitat Quality Score for This Report: 50 Biological AssessmentThe Water Quality Score is calculated by adding together the the Index Values calculated for each Sensitivity Group on the field sheet. 40+ (Excellent) 30-39 (Good) 20-29 (Fair) 0-19 (Poor) Group I (Sensitive) Index Value: 15.0Group II (Moderately Sensitive) Index Value: 3.2Group III (Tolerant) Index Value: 0.0Water Quality Score for This Report: 18