Long Rock water quality and sewage map
Long Rock is a designated coastal bathing water in Devon Cornwall and the Isles of Scilly. Its 2025 classification is Excellent. 7 sewage outlet records sit within 3 km of the monitoring point. Check the official advice before entering the water.
- Excellent
- 2025 classification
- 1,988
- Designated since
- 7
- Outlets within 3 km
- 7
- Linked to a live feed
The annual classification is in the highest quality class. The annual class is not a live test. The bathing-water point is an approximate official monitoring location, and 3 km is a straight-line search.
Annual classification history
The rating was Excellent in 2025, the same as in 2024. A change between annual classes does not describe conditions today. A missing class stays unknown, and a newly designated site may not have a full history.
| Year | Classification |
|---|---|
| 2025 | Excellent |
| 2024 | Excellent |
| 2023 | Good |
| 2022 | Good |
| 2021 | Good |
Sewage outlets within 3 km
Filter by the latest company report. The map follows the filters. This is a location search, not a list of outlets proven to affect Long Rock, and it does not include every possible source of pollution.
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 7 of 7 outlets
Open full map- Longrock Ind Estate SPS Pscsoeo LongrockCurrent status unknown
South West Water · Mounts Bay (C)
2025 annual record:6spills3.7hours - Gladstone Terrace North CSO PenzanceCurrent status unknown
South West Water · Longrock Stream
2025 annual record:23spills125hours - Finns CSO PenzanceCurrent status unknown
South West Water · Local Stream (S)
2025 annual record:52spills97.1hours - Gulval Trevarrack Lane CSO PenzanceCurrent status unknown
South West Water · Local Stream (S)
2025 annual record:48spills20.8hours - Chyandour Spst Pscsoeo PenzanceCurrent status unknown
South West Water · Mounts Bay
2025 annual record:1spill0.8hours - Ludgvan School CSO CrowlasCurrent status unknown
South West Water · Ludgvan Stream
2025 annual record:47spills568.9hours - Crowlas Bridge SPS Pscsoeo CrowlasCurrent status unknown
South West Water · Red River
2025 annual record:0spills0hours
No outlets match these filters.
Before you visit
- Open the official bathing-water profile for current advice.
- Read local signs and check local conditions.
- Use the Swim Healthy guidance to reduce open-water risks.
Designation and a map point do not establish parking, lifeguard cover, access or a safe route. A stopped overflow report does not mean that the bathing water is safe.
All outlet records within 3 km of Long Rock
7 outlet records in alphabetical order. Each link opens the outlet page with its latest report and annual history.
- Chyandour Spst Pscsoeo PenzanceMounts Bay · 1 spill in 2025
- Crowlas Bridge SPS Pscsoeo CrowlasRed River · 0 spills in 2025
- Finns CSO PenzanceLocal Stream (S) · 52 spills in 2025
- Gladstone Terrace North CSO PenzanceLongrock Stream · 23 spills in 2025
- Gulval Trevarrack Lane CSO PenzanceLocal Stream (S) · 48 spills in 2025
- Longrock Ind Estate SPS Pscsoeo LongrockMounts Bay (C) · 6 spills in 2025
- Ludgvan School CSO CrowlasLudgvan Stream · 47 spills in 2025
Sources and dates
Bathing-water file updated 6 July 2026. Source checked 9 September 2026. Outlet spill figures refer to 2025. Monitoring reference: UK30300. © Environment Agency copyright and/or database right 2015. All rights reserved. Used under the Open Government Licence v3.0.
Questions about Long Rock
- Is Long Rock safe to swim in today?
- This page cannot answer that. The annual classification describes a longer-term record, and an outlet report describes monitor activity at one outlet. Check the official bathing-water profile, local signs and current conditions before entering the water.
- What does the Long Rock classification mean?
- The annual classification is in the highest quality class. The Environment Agency sets the class from water samples taken over several bathing seasons, not from a single visit.
- Has the water quality at Long Rock changed?
- The rating was Excellent in 2025, the same as in 2024. We hold standard classifications for 5 years, from 2021 to 2025. The table above lists every year in the record.
- Are there sewage outlets near Long Rock?
- 7 outlet records fall within 3 km of the monitoring point. The nearest is Longrock Ind Estate SPS Pscsoeo Longrock, about 0.2 km away. Distance alone does not show whether an outlet affects this water.
- Which outlets near Long Rock are linked to a live feed?
- 7 of the 7 nearby 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 check the latest report and its date. A stopped report does not mean the bathing water is safe.