Dataset

Brent Catchment Water Quality Working Group

Dataset by Thames21

Dataset summary

Observations

  • 15 July 2025

    Windsor Open Space - Village Road Outfall by Dianne Murphy

    Sewage Fungus growing in pipe and down the wall below fish observed swimming in the brook around the outfall

  • 15 July 2025

    Brent Cross by Dianne Murphy

    Phosphate reading flashing 2.50 so exeeds the hanna checkers maximum

  • 15 July 2025

    Outfall at RMI Site by Judith Howlett

    Continuing to monitor this Outfall as at our RMI site and high Ammonia and Phosphate levels both flashing. Has previously been reported to TW and EA. The past week there has been a boom in place downstream of Outfall

  • 15 July 2025

    Riverside Park (Upstream) by Judith Howlett

    Long period low rainfall. Riverfly Monitoring site ARMI Score today 8 A lot of gammerus, small fish also observed. Outfall here has been reported to Thames Water and EA. Currently a boom in place. Thames Water today working on Holden Road (uphill from this location). Working on improvements

  • 15 July 2025

    Folly pre confluence by Judith Howlett

    Small water pool only, small fish fry surviving. Phosphate Hanna Checker (low range) was >2.5 (flashing)

  • 15 July 2025

    Riverside Park (Downstream) by Judith Howlett

    Small fish fry observed in the Brook

  • 11 July 2025

    Brook Farm Open Space by Dianne Murphy

    Phosphate 2.50 flashing ie exceeded maximum reading of checker

  • 11 July 2025

    Whetstone Stray by Dianne Murphy

    Dogs regularly enter the water at this location especially in hot weather

  • 5 July 2025

    Clitheroe Island - Boston Manor Park by Mitch Goldman

    Some pollen and natural debris on the water.

  • 5 July 2025

    Duckweir - Clitheroe Island - Boston Manor Park by Mitch Goldman

    1. There are houseboats near the testing site. 2. A duck near the testing site. 3. Some pollen and natural debris on the water.

  • 5 July 2025

    Brent_41 Union Canal Towpath by Mitch Goldman

    1. There are houseboats near the testing site. 2. A family of swans near the testing site. 3. Some pollen and natural debris on the water.

  • 26 June 2025

    Montrose Playing Fields Tramshed by Helen Cardy

  • 25 June 2025

    Imperial Way Bridge - Lindsay Drive Roundabout by John Poole

  • 23 June 2025

    Northwick park Brook(Wealdstone Brook?) by Angelique Soon

    Massive Parkview housing development upstream has just finishing being built with appartments now being sold. Ammonia and phoshate readings much higher than previous surveys. River flow very low and difficult to get water for sampling. Grass cuttings also being thrown into river upstream

  • 22 June 2025

    Darlands Lake (Downstream) by Dianne Murphy

    Large sections of the brook were completely dry. Water was too low for riverfly monitoring due to long dry spell

  • 22 June 2025

    Darlands Lake (Upstream) by Dianne Murphy

    Very low flow (0.01 l/s) due to long dry spell. unable to carryout riverfly monitoring.

Intended audience
Our group or organization, Our community, Government and decision makers, Broad audience/everyone
Intended use
Benchmarking of water body or watershed health, Share and compare results across watersheds., Education and engagement of local communities, Use in resource prioritization and decision making