Tees Estuary (S Bank) sewage map and spill data

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

10
Outlet records: 135
Spills in 2025: 463
Recorded hours: 10
Linked to a live feed

Annual figures describe the whole of 2025, not today.

Official waterbody record ↗How spills are counted Search the national map

Outlets on Tees Estuary (S Bank)

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 10 of 10 outlets

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Bran Sands Ww Treatment Works
Northumbrian Water · Dabholm Gut
Current status unknown
2025 annual record:70spills321.6hours

Eskdale Road CSO
Northumbrian Water · Fleet Beck Tributary
Current status unknown
2025 annual record:4spills3.2hours
Greystone Rd SSO
Northumbrian Water · Kettle Beck
Current status unknown
2025 annual record:0spills0hours
Grinkle Road CSO
Northumbrian Water · Unnamed Watercouse - Tees Estu
Current status unknown
2025 annual record:2spills3hours
Harwal Road CSO (Ref. L16)
Northumbrian Water · Fleet Beck
Current status unknown
2025 annual record:16spills31.9hours
Locke Park CSO
Northumbrian Water · The Fleet
Current status unknown
2025 annual record:2spills6.8hours
Mcclean Avenue CSO (Ref No L15)
Northumbrian Water · Fleet Beck (Tributary)
Current status unknown
2025 annual record:15spills54.3hours
Pasture Lane CSO
Northumbrian Water · Unnamed Tributary of Dabholme Beck
Current status unknown
2025 annual record:10spills22.4hours
Queen Street Allottments CSO
Northumbrian Water · Unnamed Tributary of Dabholme Beck
Current status unknown
2025 annual record:13spills9.3hours
West Coatham Lane CSO
Northumbrian Water · Tributary of the Fleet
Current status unknown
2025 annual record:3spills10.7hours

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
Bran Sands Ww Treatment Works
Northumbrian Water
70spills
2
Harwal Road CSO (Ref. L16)
Northumbrian Water
16spills
3
Mcclean Avenue CSO (Ref No L15)
Northumbrian Water
15spills
4
Queen Street Allottments CSO
Northumbrian Water
13spills
5
Pasture Lane CSO
Northumbrian Water
10spills

Spills over time

The median outlet on Tees Estuary (S Bank) recorded 7 spills in 2025, against 11 across England.

10 outlets have a comparable count for both 2024 and 2025, with the monitor working at least 90% of each year. 1 recorded more spills, 7 fewer and 2 the same. Together they went from 201 to 135 spills, a fall of 33%.

Largest rises from 2024 to 2025

Eskdale Road CSO3 → 4

Year	Outlets with a count	Total spills	Median per outlet	England median
2025	10	135	7	11
2024	10	201	13.5	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 Tees Estuary (S Bank)

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

Bran Sands Ww Treatment WorksDabholm Gut · 70 spills in 2025
Eskdale Road CSOFleet Beck Tributary · 4 spills in 2025
Greystone Rd SSOKettle Beck · 0 spills in 2025
Grinkle Road CSOUnnamed Watercouse - Tees Estu · 2 spills in 2025
Harwal Road CSO (Ref. L16)Fleet Beck · 16 spills in 2025
Locke Park CSOThe Fleet · 2 spills in 2025
Mcclean Avenue CSO (Ref No L15)Fleet Beck (Tributary) · 15 spills in 2025
Pasture Lane CSOUnnamed Tributary of Dabholme Beck · 10 spills in 2025
Queen Street Allottments CSOUnnamed Tributary of Dabholme Beck · 13 spills in 2025
West Coatham Lane CSOTributary of the Fleet · 3 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: GB103025072320. The official waterbody record is a source lookup; its classification is not imported here.

All sources How the data works Report pollution

Questions about Tees Estuary (S Bank)

Which outlets are linked to Tees Estuary (S Bank)?: The source links 10 outlet records to waterbody GB103025072320. The link comes from the annual return; it does not model where a discharge travelled.
How many spills were recorded for Tees Estuary (S Bank)?: 10 records report 135 spills in 2025 and 463 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 Tees Estuary (S Bank)?: Northumbrian Water operates every listed outlet. Contact the operator or the official pollution service if you see a problem in the water.
Which outlets on Tees Estuary (S Bank) are linked to a live feed?: 10 of the 10 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 Tees Estuary (S Bank)?: Every record with a monitor operation figure shows 90% or more for 2025.
Does this show if Tees Estuary (S Bank) is safe?: No. Event duration data does not measure bacteria, chemicals or current water quality. Use official local water-quality advice for that question.