Dataset

Brent Catchment Water Quality Working Group

Dataset by Thames21

Dataset summary

Observations

  • 15 October 2025

    Brook Farm Open Space by Dianne Murphy

    Popular dog walking area, Dogs often enter the water here

  • 15 October 2025

    Quinta Open Space by Judith Howlett

    Testers Jude and Dianne Little water, but a regular spot for dog walkers and dogs running through the water Photos upstream and downstream view

  • 15 October 2025

    Brent Cross by Dianne Murphy

    1) Down stream from test location 2) looking upstream to test location little egret and grey wagtails in channel

  • 15 October 2025

    Whetstone Stray by Judith Howlett

    Water level shallow but a little deeper than previously despite little rainfall, photos upstream and downstream view Testers Jude and Dianne

  • 14 October 2025

    Outfall at RMI Site by Judith Howlett

    Sediment collection in pool of water at the bottom of the Outfall. Outfall not running, only slight trickle. After recent improvements phosphate increased again as LR checker flashing at 2.5. Ammonia increased to 1.55 MR checker

  • 14 October 2025

    Riverside Park (Upstream) by Judith Howlett

    Still shallow and gravel banks. Facing downstream water running quite steadily right hand side, left side deeper and pooled not really running. Leaf debris in water. Disturbed a couple of Moorhens

  • 14 October 2025

    Folly pre confluence by Judith Howlett

    Water shallow and very slow running, a lot of leaf litter, quite smelly. Photos showing up and downstream views

  • 14 October 2025

    Riverside Park (Downstream) by Judith Howlett

    Photos upstream and downstream view showing how much gravel is showing. Another area paddled in by dogs and kids

  • 4 October 2025

    Brent_41 Union Canal Towpath by Mitch Goldman

    1. There are houseboats moored. 2. Some floating leaves and branches.

  • 4 October 2025

    Clitheroe Island - Boston Manor Park by Mitch Goldman

    1. The water was moving very quickly. 2. There were lots of leaves and some small branches floating, probably blown in from the wind.

  • 4 October 2025

    Duckweir - Clitheroe Island - Boston Manor Park by Mitch Goldman

    1. There are houseboats moored here. 2. Part of the river had floating algae/plants - it looked a like duckweek but I'm not sure. They were individual roundish "leaves" floating evenly spread out on the water. I took a close-up photo. 3. Part of the river was a mat of green algae, dense enough that you couldn't see the water through it. It had some household rubbish bags on it. I took a photo of that too. 4. The water level was high but very still.

  • 1 October 2025

    Whetstone Stray by Judith Howlett

    Just an observation whilst out for exercise, water very muddy looking and deeper than usual given it hasn't rained much and water has been very clear recently. Walked northwards towards Totteridge Lane and found water gushing down the gully that enters the Dollis just below the road bridge. Water upstream of this all clear. Searched Affinity Water for any possible burst water mains and seems likely south of Whetstone High Road, Oakleigh Gardens, N20 reported and under repair today

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