Observation

Callerton

Ouseburn

River or stream

August 5, 2026 at 3:30 PM

QA status: Needs review

This observation is under review by Water Rangers, last updated on 2026-08-05, and has not been marked as checked yet. Details are below.

Review needed: conductivity's result of 823μS/cm is outside the expected range of 190.5-571.5μS/cm (50.0% difference from the historical median for this location).

Weather observations

  • Current weather

    Community scientist interpretation

    • Sunny
    • Cloudy

  • Rain in previous 24 hours

    Community scientist interpretation

    Heavy and/or prolonged rain

Qualitative readings

  • Colour

    Community scientist interpretation

    Colourless

  • Clarity

    Community scientist interpretation

    Clear

Plants/wildlife

  • Aquatic vegetation

    Community scientist interpretation

    Submerged (fully under the water) Not visible
    Plants floating on the surface 5 to 33%
    Plants emerging out of the water 5 to 33%
    Algae (crusts or thin mats) Not visible
    Algae (thick mats, can be free floating) Not visible

  • Vegetation on shore or riverbank

    Community scientist interpretation

    Tall plants (grasses, flowers), Scrub or shrubs (woody stems), Mature trees

  • Problem plant species spotted during survey (UK)

    Community scientist interpretation

    Floating pennywort

  • Wildlife spotted during survey (UK)

    Community scientist interpretation

    1 common chiffchaff

Issue reporting

  • Evidence of recent pollution

    Community scientist interpretation

    None None

  • Outfalls, pipes and drains

    Community scientist interpretation

    Outflows could not be observed due to thick outgrowing vegetation

Physical tests

  • Estimated average water depth

    Community scientist estimate (depth)

    0.10 m

  • Estimated width at water level

    Community scientist estimate (width)

    1.00 m

  • Water level

    Community scientist interpretation

    Low

  • Water flow

    Community scientist interpretation

    Slow

  • Natural obstacles to fish or flow

    Community scientist interpretation

    Ingrowing and overhanging vegetation from banks

  • Channel bed materials

    Community scientist interpretation

    Gravel - pebble, Silt / clay

Chemistry tests

  • Water temperature

    HM Digital EC-3 multimeter (temperature)

    16.2 °C

  • Conductivity

    HM Digital EC-3 multimeter (conductivity)

    823 μS/cm

  • Turbidity

    Turbidity tube (50 cm)

    < 12 NTU

  • Phosphate

    Hanna checker (phosphate - low range)

    1.17 mg/L

  • Nitrate

    WaterWorks Nitrate/Nitrite Test Strips (nitrate-nitrogen)

    2 mg/L

  • Nitrite

    WaterWorks Nitrate/Nitrite Test Strips (nitrite-nitrogen)

    ≤ 0 mg/L

  • Ammonia

    Simplex Health teststrip (ammonia-nitrogen - low range)

    ≤ 0 mg/L

Notes

Could not get access to the river bank so I am not sure if the plant seen on the surface was floating pennywort or something similar that is non invasive. The weather was largely cloudy but with sunny spells as appear on the photos.