Dataset

Lea Guardians

Dataset by Thames21

Dataset summary

Observations

  • 24 January 2026

    Lordship Recreation Ground (Downstream) by Caroline Jepson

    The ammonia was also tested on the 17th January, but I had failed to test the phosphate, so repeated the tests today 24th January. Although the previous 24 hours have been dry there has been heavy rainfall in the last week. The ammonia continues to be at the lowest I have recorded. The water levels were about 10 cms less than a week ago, but still higher than average.

  • 23 January 2026

    The Charter Road (Gordon Avenue) by Janet Laban

    Water Temp raised to above 12 degrees C prior to testing

  • 23 January 2026

    Highams Park Lake by Janet Laban

    Sample temp raised to 12 degrees C prior to testing

  • 19 January 2026

    Beech Hall Crescent CSO by Martha Jeffery

    Using new homemade scoop with the telescopic pole - the hummus pot and Thomas's knots worked! Evidence of more toilet paper around the CSO pipe outlet (see picture) so has probably discharged since last sample on 13th January.

  • 18 January 2026

    Whitehall Outfall 5b by Anne Rowland

    Low water temperature - no reading taken.

  • 18 January 2026

    Whitehall Outfall 5a by Anne Rowland

    Water temperature low - no readings taken.

  • 17 January 2026

    Lordship Recreation Ground (Downstream) by Caroline Jepson

    The water level was as high as it gets at the testing point, as there has been a lot of rain in the previous week. The depth was about 60 cms, which is about 20 cms deeper than average. Unfortunately I did not have a phosphate reading, as I made a mistake in the process (kept showing Inverted). I have since realised what I kept doing wrong! The ammonia readings continue to be the lowest ever recorded. High rainfall and water levels must help this, but I have recorded much higher ammonia levels in periods of heavy rainfall in the past.