Location

Highams Park Lake

The Ching

The Ching in Waltham Forest

Dataset summary

Highams Park Lake has data for current_weather_description, odour, pollution_sources, algae, colour, on_the_water_s_surface, water_flow, water_level, previous_weather, conductivity, water_temperature, phosphates, ammonia, current_weather, previous_weather_description, clarity, water_use, ph, and air_temperature from 17 January 2024 to 31 October 2025.

Observations

  • 10 October 2025

    Janet Laban

    Samples were also tested at home at 11.30am when the water temperature was 17 degrees centigrade with the following results: Ammonia: 0.12 Phosphate: 2.5 flashing This shows that taking a sample home for testing in a plastic sampling bottle provides similar results to testing in the field

  • 5 September 2025

    Janet Laban

    We are using a low range ammonia Hanna checker. There isnt a box for recording this result so I have entered it into the Ammonia medium range box. The actual result is 0.2 ppm but it is showing as 0.00 in the summary

  • 20 August 2025

    Janet Laban

    Phosphate hanna checker result flashing indicating that the phosphate level is above 2.5 ppm

  • 15 August 2025

    Janet Laban

    May be slightly low reading since some powder reagent was left in the packet by mistake

  • 8 August 2025

    Janet Laban

    Phosphate result flashing indicating that the result is above 2.5ppm

  • 1 August 2025

    Janet Laban

    Phosphate result flashing - above Hanna Checker range

  • 18 July 2025

    Janet Charlesworth

    Phosphate 2.5 flashing. Dogs in the water

  • 4 July 2025

    Janet Laban

    Water slightly cloudy - possibly due to dog in the water prior to our sampling

  • 27 June 2025

    Janet Laban

    Burst watermain at Whitehall Road has washed silty water down the river increasing flow rates and turning the water brown and opaque

  • 30 May 2025

    Janet Laban

    Phosphate Hanna Checker result flashing showing that the phosphate level is above the range of this checker