Town Row Rotherfield No 2 CSO

Storm overflow run by Southern Water, discharging into Trib Of The Eridge Stream.

Storm overflow on the sewer network Sussex Weald constituency
Right now
Not discharging
Last discharge ended on (1 hour ago).
Times are UK time. Company feed updated 1 min ago

"Not discharging" means the company's monitor reports no discharge right now — not that the water is clean. The feed publishes status only; no discharge volume is measured.

2026 so far
21spills
146 h discharging on 22 days · counted by us, not yet official
2025 official
19spills
71 h · +58% on 2024
Rank in Southern Water
#284
of 970 overflows by 2025 spills (1 = most)
Monitor in 2025
88.7% working
Long-term average 15.5 spills a year

Year by year

The Environment Agency's official annual returns, counted the EA's way (12/24-hour spills). 2026 is our own running count, the same way, from Southern Water's monitor log and the live feed. The official figure is published next spring.

2021
26 spills · 115 hmonitor 92.0%
2022
6 spills · 15 hmonitor 78.5%
2023
8 spills · 17 hmonitor 42.3%
2024
12 spills · 55 hmonitor 46.3%
2025
19 spills · 71 hmonitor 88.7%
2026so far
21 spills · 146 h

A spill is the EA's 12/24-hour count: the first 12 hours of a discharge count as one, each further 24 hours with discharge as one more. "Monitor" is the share of that year the monitor was working, so a 0 beside a working monitor is a real zero; "no data" means the monitor produced no usable data that year — not zero. Years before 2024 are matched to this site by name and location, because the EA's site IDs changed that year; a monitor figure beside one of them means the outlet's permit confirms the match.

Twin outlet

Southern Water runs another overflow within 300 m that also discharges into Trib Of The Eridge Stream. They share the sewer and the storm, so one outlet's figures are only part of what reaches the water.

36m Town Row Rotherfield No 1 CSOdischargingSWS00882Town Row Rotherfield No 1 CSO - 103296 32spills in 2025

This overflow (Town Row Rotherfield No 2 CSO - 108368): 19 spills in 2025. Distances are between the published outlet points. The names in brackets are Southern Water's own, from its return.

What the 2025 return says

From Southern Water's annual return to the Environment Agency for this overflow.

High-spill review
High spill threshold not met
Long-term review
Not asset maintenance - Hydraulic capacity
Investigation
Env Act (SODRP) investigation ongoing, UWWTR investigation ongoing
Improvement work
No improvement action in reporting period
Monitored since
2019
Water body
Upper Eridge Stream

"High spill threshold not met" means this overflow did not spill often enough to trigger the EA's formal high-spill review for that year. It is not a statement that the spills were harmless.

Discharges we have recorded

47 discharge periods since 5 Sep 2024. 46 of them come from Southern Water's own event-duration-monitoring records (from its Rivers and Seas Watch service, Sep 2024 – Feb 2026); the live feed adds anything after that. The official annual count is the figure to quote.

Show 30 earlier (of 47)
StartedEndedDischarge time
2 h 38 min
13 h 22 min
2 h 22 min
7 h 38 min
8 h 4 min
14 min
17 h 24 min
13 h 40 min
15 h 40 min
34 min
19 h 24 min
2 h 27 min
3 h 46 min
11 h 27 min
21 min
1 h 20 min
1 h 8 min
2 h 30 min
1 h 38 min
7 h 54 min
3 h 32 min
6 h 50 min
18 min
1 h 48 min
6 min
2 h 44 min
7 h 8 min
1 h 42 min
56 min
8 h 30 min

The year figures above use the EA's 12/24-hour counting method, so they are comparable with the official figures; the monitor log's 69 raw blocks were merged into 47 continuous discharge periods (gaps under 15 min joined).

What the feed showed

FloodRadar's own record of every change of state Southern Water's live feed has shown for this overflow, kept since : 3 states. The feed publishes its status now and its latest discharge, nothing older; the discharges above are read from this. It is here so the figures can be checked.

Show the last 3 states
SeenStatusSinceLatest discharge
Not discharging →
Discharging → no end yet
Not discharging →

Rain nearby last 30 days

Nearest live rain gauge: Rainfall gauge nr Wealden, 2.3 km away. Brown shading = when this overflow was discharging; ▼ = a discharge start.

Overflow shading is a timing match, not proof of cause — heavy rain and spills share a trigger. Times come from the water company’s event-duration monitor (site status only; no discharge volume is published).

Where it is

Nearest river gauge
Hendal Bridge (Eridge Stream Tributary Medway) · 7.8 km
Nearest rain gauge
Council area
Wealden District
Southern Water's own name for it
Town Row Rotherfield No 2 CSO - 108368
Site reference
SWS00883 · permit K01526
Coordinates
51.04956, 0.23268

Tell me when this overflow discharges

One message when the company's monitor reports a new discharge here. At most one every 6 hours.

Setting this alert needs JavaScript. The alerts you already have are on your alerts page.

The alert repeats the monitor's status: whether the overflow is discharging, not how much or why. It can only tell you about a discharge that starts after you turn it on.

Concerned about this overflow?

Report pollution you can see or smell to the regulator straight away; the company handles complaints about the overflow itself.

Write to the MP

The Environment Agency's return places this overflow in the Sussex Weald constituency. An MP can ask the company and the regulator questions on a constituent's behalf. These words carry the official figures; change them as you like.

The link opens Parliament's own "Find your MP", which gives the MP's name and how to write to them. FloodRadar sends nothing and keeps nothing you write. Check the constituency against your own address: an MP acts only for people who live in it.

Live status: © Southern Water storm overflow activity data, licensed under CC BY 4.0. Annual spill figures: Environment Agency Event Duration Monitoring return, © Environment Agency copyright and/or database right, Open Government Licence (OGL) v3.0. Spill-event history: Southern Water's Rivers and Seas Watch release history (riversandseaswatch.southernwater.co.uk), © Southern Water. Shown by FloodRadar: only releases Southern Water marks Genuine and that have ended; those it marks Not Genuine or still has under review are left out. Discharges marked "via Top of the Poops", come from Top of the Poops' record of the same company feed, used under CC BY-SA 4.0: the feed's own start and end times as its pages print them, not their derived hours. Times are shown in UK local time. FloodRadar republishes the monitor's status and the EA's figures; it does not measure discharges itself. Constituency and council area from the EA's return: contains OS data © Crown copyright and database right 2026.