Monks Brook sewage map and spill data
8 storm overflows listed in the 2025 annual return name this water. All are operated by Southern Water. Check the latest company report for each outlet below.
- 8
- Outlet records
- 23
- Spills in 2025
- 81
- Recorded hours
- 6
- Linked to a live feed
1 records show monitor operation below 90%. Annual figures describe the whole of 2025, not today.
Outlets on Monks Brook
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 8 of 8 outlets
Open full map- Chestnut Avenue Eastleigh CEO - 108412Current status unknown
Southern Water · The Monks Brook
2025 annual record:2spills0.1hours - Green Lane Chilworth CEO - 108785Current status unknown
Southern Water · Unnamed Tributary of River Itchen
2025 annual record:6spills29.3hours - Park Road Chandlers Ford CSO - 108449Current status unknown
Southern Water · Monks Brook
2025 annual record:3spills8hours - Templars Way Chandlers Ford CEO - 108399Current status unknown
Southern Water · Monks Brook via Drain
2025 annual record:6spills41.1hours - Valley Road Chandlers Ford CSO - 103267Current status unknown
Southern Water · Tributary of the Monks Brook
2025 annual record:4spills2.4hours - Wessex Lane Southampton Outside 1 CSO - 108497Current status unknown
Southern Water · Saline Estuary
2025 annual record:0spills0hours - Wessex Lane Southampton Outside 11 CSO - 108496Current status unknown
Southern Water · Saline Estuary
2025 annual record:2spills0.2hours - Wessex Lane Southampton Outside 15 CSO - 108495Current status unknown
Southern Water · Saline Estuary
2025 annual record:0spills0hours
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.
- 1Green Lane Chilworth CEO - 1087856spills
Southern Water
- 1Templars Way Chandlers Ford CEO - 1083996spills
Southern Water
- 3Valley Road Chandlers Ford CSO - 1032674spills
Southern Water
- 4Park Road Chandlers Ford CSO - 1084493spills
Southern Water
- 5Chestnut Avenue Eastleigh CEO - 1084122spills
Southern Water
Spills over time
The median outlet on Monks Brook recorded 2.5 spills in 2025, against 11 across England.
5 outlets have a comparable count for both 2024 and 2025, with the monitor working at least 90% of each year. 1 recorded more spills, 4 fewer and 0 the same. Together they went from 24 to 15 spills, a fall of 38%.
Largest rises from 2024 to 2025
| Year | Outlets with a count | Total spills | Median per outlet | England median |
|---|---|---|---|---|
| 2025 | 8 | 23 | 2.5 | 11 |
| 2024 | 8 | 37 | 3.5 | 19 |
| 2023 | 8 | 34 | 4.5 | 20 |
| 2022 | 8 | 19 | 1 | 13 |
| 2021 | 8 | 18 | 0.5 | 19 |
| 2020 | 1 | 6 | 6 | 18 |
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 Monks Brook
8 outlet records in alphabetical order. Each link opens the outlet page with its latest report and annual history.
- Chestnut Avenue Eastleigh CEO - 108412The Monks Brook · 2 spills in 2025
- Green Lane Chilworth CEO - 108785Unnamed Tributary of River Itchen · 6 spills in 2025
- Park Road Chandlers Ford CSO - 108449Monks Brook · 3 spills in 2025
- Templars Way Chandlers Ford CEO - 108399Monks Brook via Drain · 6 spills in 2025
- Valley Road Chandlers Ford CSO - 103267Tributary of the Monks Brook · 4 spills in 2025
- Wessex Lane Southampton Outside 1 CSO - 108497Saline Estuary · 0 spills in 2025
- Wessex Lane Southampton Outside 11 CSO - 108496Saline Estuary · 2 spills in 2025
- Wessex Lane Southampton Outside 15 CSO - 108495Saline Estuary · 0 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: GB107042016310. The official waterbody record is a source lookup; its classification is not imported here.
Questions about Monks Brook
- Which outlets are linked to Monks Brook?
- The source links 8 outlet records to waterbody GB107042016310. The link comes from the annual return; it does not model where a discharge travelled.
- How many spills were recorded for Monks Brook?
- 8 records report 23 spills in 2025 and 81 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 Monks Brook?
- Southern Water operates every listed outlet. Contact the operator or the official pollution service if you see a problem in the water.
- Which outlets on Monks Brook are linked to a live feed?
- 6 of the 8 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 Monks Brook?
- 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 Monks Brook is safe?
- No. Event duration data does not measure bacteria, chemicals or current water quality. Use official local water-quality advice for that question.