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Water Quality Assessment of Peter's Kill and Lake Minnewaska on October 28, 2010

This report summarizes the observations made during a field trip conducted by Arlington High School at Peter's Kill and Lake Minnewaska. We analyzed various water quality parameters, including temperature, conductivity, pH, dissolved oxygen, nitrates, and phosphates. Key findings indicate a golden yellow color for Peter’s Kill with a pH of 4.7 and the presence of tannins, whereas Lake Minnewaska exhibited a black/green color with a higher pH of 6.5 and visibility up to 3 meters. The presence of aquatic life was noted in Lake Minnewaska with observations of fish.

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Water Quality Assessment of Peter's Kill and Lake Minnewaska on October 28, 2010

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  1. The Peter’s Kill and Lake Minnewaska Arlington High School Field Trip Data

  2. The Peter’s Kill is a stream that flows out of Lake Awosting. • We are sampling at the gate house to Lake Minnewaska. • We sampled on both sides of the bridge. The Peter’s Kill Site

  3. Summary of Observations on Oct. 28, 2010 Color of creek – Golden yellow Temperature – 9.5 oC Conductivity – 28 uS Visibility – to the bottom (.25m) pH of creek – 4.7 Dissolved Oxygen – 9.2mg/L Nitrates – 0ppm Phosphates – 0ppm Presence of tannins – Yes Presence of animal life - No The Peter’s Kill

  4. Visibility measured with a Sechhi Disc = .25 m (to bottom) Peter’s Kill

  5. Temperature and conductivity– using a YSI temp/salinity/conductivity probe = 9.5oC, 28 uS Peter’s Kill

  6. pH of Creek using a Pasco pH meter calibrated with 3 test buffers (accuracy +/- 0.2) = 4.7 Peter’s Kill

  7. Dissolved Oxygen using LaMotte test kits (modified Winkler titration) = 9.2 mg/l Peter’s Kill

  8. Nitrate and Phosphates using Lamotte test kits = 0ppm Peter’s Kill

  9. Presence of tannins = yes • Presence of animal life = no Peter’s Kill

  10. Observations up to the Lake • We observed evidence of the Wooly Adelgid and elongate hemlock scale on Hemlocks and many dead Hemlock trees. • We identified trees, fern and moss life cycle stages and observed primary and secondary succession. The Sunset Carraige trail

  11. Summary of Observations on Oct. 28, 2010 • Color of Lake– Black/green • Temperature – 12.5 oC • Conductivity – 33 uS • Visibility – 3m • pH of Lake– 6.5 • Dissolved Oxygen – 9.2mg/L • Nitrates – 0ppm • Phosphates – 0ppm • Presence of tannins – No • Presence of animal life – Salamanders and fish Lake Minnewaska

  12. Visibility measured with a Sechhi Disc = 3m Lake Minnewaska

  13. Temperature and conductivity– using a YSI temp/salinity/conductivity probe = 12.5oC and 33uS all the way to the bottom (16m) Indicates fall turnover. Lake Minnewaska

  14. pH of Lake using a Pasco pH meter calibrated with 3 test buffers (accuracy +/- 0.2) = 6.5 Lake Minnewaska

  15. Dissolved Oxygen using LaMotte test kits (modified Winkler titration) = 9.2 mg/l Lake Minnewaska

  16. Nitrate and Phosphates using Lamotte test kits = 0ppm Lake Minnewaska

  17. Presence of tannins – no • Presence of animal life – yes, we saw lots of fish (golden shiners) and a salamander Lake Minnewaska

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