Dataset

Lea Guardians

Dataset by Thames21

Dataset summary

Observations

  • 5 September 2025

    Hobart Corner by Bounds Green Rangers (BGR)

    Sewage fungus on rocks / branches. Moderate turbidity, moderate flow

  • 5 September 2025

    Highams Park Lake by 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

  • 2 September 2025

    Channelsea River by Northern Outfall by Ruth-Ron-Caroline Keating

    Turbidity = less than 14 TDS ppm conversion factor = 0.7

  • 2 September 2025

    Channelsea River Gas Holders by Ruth-Ron-Caroline Keating

    Turbidity = less than 14 TDS ppm = conversion factor 0.7

  • 1 September 2025

    Markfield Park (Stonebridge Brook) CSO by Rhiannon England

    Sewage flowing into the Lea from Stonebridge brook outfall following heavy showers. Strong sewage odour. Ammonia reading very high and much higher than 20m upstream at the other observation

  • 1 September 2025

    Upstream of Markfield Park (Stonebridge Brook) CSO by Rhiannon England

    very marked difference to downstream at Stonebridge brook where obvious sewage seen discharging from the outflow

  • 1 September 2025

    Dagenham Brook Bridge Rd U/S by Lis Loebner

    phosphate reading flashing so phosphate level greater than 2.50 natural debris and litter both present, litter including balls and plastic bottles

  • 1 September 2025

    North Access Road by Lis Loebner

    phosphate reading flashing so phosphates >2.50