Sewage Map

Blackwater (Hawley to Whitewater confluence at Bramshill) sewage map and spill data

4 storm overflows listed in the 2025 annual return name this water. All are operated by Thames Water. Check the latest company report for each outlet below.

4
Outlet records
44
Spills in 2025
509
Recorded hours
4
Linked to a live feed

1 records show monitor operation below 90%. Annual figures describe the whole of 2025, not today.

Official waterbody record ↗How spills are countedSearch the national map

Outlets on Blackwater (Hawley to Whitewater confluence at Bramshill)

Filter by the latest company report. The map follows the filters.

Filters apply to the map and list. Recent stops need a current report and a recorded stop time. They do not show whether water is safe.

Showing 4 of 4 outlets

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  • Camberley STW

    Thames Water · Blackwater

    Current status unknown
    2025 annual record:7spills69.3hours
  • Knightsbridge Road, Camberley

    Thames Water

    Current status unknown
    2025 annual record:0spills0hours
  • New Mill STW

    Thames Water · Tributary of River Blackwater

    Current status unknown
    2025 annual record:27spills324.8hours
  • Sandhurst STW

    Thames Water · Blackwater

    Current status unknown
    2025 annual record:10spills114.5hours

Most recorded spills in 2025

The highest 2025 counts among these outlets. A count is events, not volume or harm. Equal counts share a rank.

  1. 1
    New Mill STW

    Thames Water

    27spills
  2. 2
    Sandhurst STW

    Thames Water

    10spills
  3. 3
    Camberley STW

    Thames Water

    7spills
  4. 4
    Knightsbridge Road, Camberley

    Thames Water · monitor coverage 66.4%, below 90%

    0spills

Spills over time

The median outlet on Blackwater (Hawley to Whitewater confluence at Bramshill) recorded 8.5 spills in 2025, against 11 across England.

3 outlets have a comparable count for both 2024 and 2025, with the monitor working at least 90% of each year. 0 recorded more spills, 3 fewer and 0 the same. Together they went from 130 to 44 spills, a fall of 66%.

YearOutlets with a countTotal spillsMedian per outletEngland median
20254448.511
202441323119
20233802620
20221242413
20211313119

Earlier returns list fewer of these outlets, so totals are not comparable between years. The median per outlet and the like-for-like change are fairer comparisons. Counts are events, not volume.

All outlet records on Blackwater (Hawley to Whitewater confluence at Bramshill)

4 outlet records in alphabetical order. Each link opens the outlet page with its latest report and annual history.

Sources and dates

Outlet locations, waterbody links and spill figures come from the Environment Agency 2025 event duration monitoring annual return. The latest company reports come from each operator’s live feed and carry their own dates. Waterbody ID: GB106039017290. The official waterbody record is a source lookup; its classification is not imported here.

All sourcesHow the data worksReport pollution

Questions about Blackwater (Hawley to Whitewater confluence at Bramshill)

Which outlets are linked to Blackwater (Hawley to Whitewater confluence at Bramshill)?
The source links 4 outlet records to waterbody GB106039017290. The link comes from the annual return; it does not model where a discharge travelled.
How many spills were recorded for Blackwater (Hawley to Whitewater confluence at Bramshill)?
4 records report 44 spills in 2025 and 509 recorded hours. All listed records have a usable count. Outlets can discharge at the same time, so the hours are not the time the whole water was affected.
Who is responsible for the outlets on Blackwater (Hawley to Whitewater confluence at Bramshill)?
Thames Water operates every listed outlet. Contact the operator or the official pollution service if you see a problem in the water.
Which outlets on Blackwater (Hawley to Whitewater confluence at Bramshill) are linked to a live feed?
4 of the 4 records are matched to a monitor in a company live feed. A link does not mean the monitor is working now. Use the status filters above to see the latest report for each outlet, with its date. The rest show annual figures only.
How complete is the monitoring for Blackwater (Hawley to Whitewater confluence at Bramshill)?
1 of the listed records have monitor operation below 90% for 2025. Events can be missed when a monitor is not working, so low counts from those outlets may understate activity.
Does this show if Blackwater (Hawley to Whitewater confluence at Bramshill) is safe?
No. Event duration data does not measure bacteria, chemicals or current water quality. Use official local water-quality advice for that question.