Hart (Crondall to Elvetham) sewage map and spill data
1 storm overflow listed in the 2025 annual return name this water. All are operated by Thames Water. Check the latest company report for each outlet below.
- 1
- Outlet records
- 58
- Spills in 2025
- 823
- Recorded hours
- 1
- Linked to a live feed
Annual figures describe the whole of 2025, not today.
Outlets on Hart (Crondall to Elvetham)
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 1 of 1 outlets
Open full map- Crondall STWCurrent status unknown
Thames Water · River Hart
2025 annual record:58spills823.3hours
No outlets match these filters.
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.
- 1Crondall STW58spills
Thames Water
Spills over time
The median outlet on Hart (Crondall to Elvetham) recorded 58 spills in 2025, against 11 across England.
1 outlet has a comparable count for both 2024 and 2025, with the monitor working at least 90% of each year. 0 recorded more spills, 1 fewer and 0 the same. Together it went from 81 to 58 spills, a fall of 28%.
| Year | Outlets with a count | Total spills | Median per outlet | England median |
|---|---|---|---|---|
| 2025 | 1 | 58 | 58 | 11 |
| 2024 | 1 | 81 | 81 | 19 |
| 2023 | 1 | 37 | 37 | 20 |
| 2022 | 1 | 1 | 1 | 13 |
| 2021 | 1 | 23 | 23 | 19 |
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 Hart (Crondall to Elvetham)
1 outlet record in alphabetical order. Each link opens the outlet page with its latest report and annual history.
- Crondall STWRiver Hart · 58 spills in 2025
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: GB106039017090. The official waterbody record is a source lookup; its classification is not imported here.
Questions about Hart (Crondall to Elvetham)
- Which outlets are linked to Hart (Crondall to Elvetham)?
- The source links 1 outlet record to waterbody GB106039017090. The link comes from the annual return; it does not model where a discharge travelled.
- How many spills were recorded for Hart (Crondall to Elvetham)?
- 1 record report 58 spills in 2025 and 823 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 Hart (Crondall to Elvetham)?
- 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 Hart (Crondall to Elvetham) are linked to a live feed?
- 1 of the 1 record 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 Hart (Crondall to Elvetham)?
- Every record with a monitor operation figure shows 90% or more for 2025.
- Does this show if Hart (Crondall to Elvetham) is safe?
- No. Event duration data does not measure bacteria, chemicals or current water quality. Use official local water-quality advice for that question.