Observation

Head River at Kris Starr Sanctuary

Head River

River or stream

November 7, 2017 at 3:15 PM

QA status: Needs review

This observation is under review by Water Rangers, last updated on 2026-07-08, and has not been marked as checked yet. Details are below.

Review needed: oxygen's result of 9.6mg/L is outside the expected range of 3.1-9.05mg/L (3.0 standard deviations from the historical mean for this location).

Physical tests

  • Turbidity

    Turbidity tube (45 cm)

    < 0 NTU

  • Water depth

    Secchi disk (20 cm diameter)

    0.84 m

Chemistry tests

  • pH

    Taylor teststrips (pH)

    7.5

    Regulatory

  • Oxygen

    Chemetrics ampoules (dissolved oxygen)

    9.6 mg/L

    Regulatory

  • Alkalinity

    Taylor teststrips (alkalinity)

    58 ppm

  • Air temperature

    Water Rangers (stream thermometer) and/or weather app

    5 °C

  • Water temperature

    Water Rangers pen-type meter (temperature)

    7 °C

  • Nitrate-nitrogen

    Kyoritsu Packtest (nitrate-nitrogen)

    ≤ 0 mg/L

  • Phosphate

    Unspecified equipment (phosphate)

    ≤ 0 ppm

Notes

Otter sighted on other side of the riverbank.