Penberth Stream at Penberth Bridge
EA name: PENBERTH STREAM AT PENBERTH BRIDGE
Environment Agency sampling point SW-82210105 · Freshwater - rivers · listed as open (“open” does not mean it is sampled now)
These are samples taken on a date, not live readings of the river. Results reach the Environment Agency's archive days to months after the sample is taken, so the newest here may be weeks or months old. FloodRadar does not grade them.
Where and when
- Last sampled
- 2 Jan 2026, 13:349 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone). Not sampled since, as far as the archive shows: the Environment Agency was asked up to 8 Oct 2026 and had nothing newer.
- Samples banked
- 15 since 13 Oct 2023 Imported periods: 1 Oct 2023 – 8 Oct 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Monitoring (national agency policy)
- Where
- National Grid 140081, 22944As published, to the nearest 1 m. Open in a map
- River, by its own name
- Penberth Stream
- River, by the map
- Penberth RiverPlaced on a river whose name partly matches its own, 5 m from the line.
- Next gauge downstream
- None tracedThe map stops before any gauge.
- Nearest gauge upstream
- Penberth On the Penberth Stream · 0.2 km along the river
- Why it was sampled
- Monitoring (national agency policy) (15 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
99.5%
Sampled 2 Jan 2026, 9 months ago · 15 results banked
Every result (15)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jan 2026, 13:34 | 99.5 | 99.5% |
| 1 Oct 2025, 11:03 | 100 | 100% |
| 1 Oct 2025, 09:22 | 93.5 | 93.5% |
| 10 Jul 2025, 10:43 | 100.1 | 100.1% |
| 16 Apr 2025, 14:25 | 101 | 101% |
| 2 Jan 2025, 12:58 | 100.6 | 100.6% |
| 9 Oct 2024, 12:16 | 97.6 | 97.6% |
| 16 Jul 2024, 11:26 | 102.6 | 102.6% |
| 3 Apr 2024, 11:44 | 101.1 | 101.1% |
| 13 Mar 2024, 09:31 | 100.7 | 100.7% |
| 5 Feb 2024, 11:31 | 101 | 101% |
| 11 Jan 2024, 12:50 | 101.8 | 101.8% |
| 4 Dec 2023, 11:42 | 101 | 101% |
| 13 Nov 2023, 09:40 | 102.3 | 102.3% |
| 13 Oct 2023, 09:47 | 100.2 | 100.2% |
Dissolved oxygen
as O2 · code 9924 · mg/l
11.6 mg/l
Sampled 2 Jan 2026, 9 months ago · 15 results banked
Every result (15)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jan 2026, 13:34 | 11.6 | 11.6 mg/l |
| 1 Oct 2025, 11:03 | 10.8 | 10.8 mg/l |
| 1 Oct 2025, 09:22 | 10.2 | 10.2 mg/l |
| 10 Jul 2025, 10:43 | 9.94 | 9.94 mg/l |
| 16 Apr 2025, 14:25 | 11 | 11 mg/l |
| 2 Jan 2025, 12:58 | 11.9 | 11.9 mg/l |
| 9 Oct 2024, 12:16 | 10.1 | 10.1 mg/l |
| 16 Jul 2024, 11:26 | 10.3 | 10.3 mg/l |
| 3 Apr 2024, 11:44 | 11.1 | 11.1 mg/l |
| 13 Mar 2024, 09:31 | 11.1 | 11.1 mg/l |
| 5 Feb 2024, 11:31 | 11.2 | 11.2 mg/l |
| 11 Jan 2024, 12:50 | 12.2 | 12.2 mg/l |
| 4 Dec 2023, 11:42 | 11.5 | 11.5 mg/l |
| 13 Nov 2023, 09:40 | 10.9 | 10.9 mg/l |
| 13 Oct 2023, 09:47 | 9.89 | 9.89 mg/l |
Water temperature
code 0076 · °C
8.6 °C
Sampled 2 Jan 2026, 9 months ago · 15 results banked
Every result (15)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jan 2026, 13:34 | 8.6 | 8.6 °C |
| 1 Oct 2025, 11:03 | 11.9 | 11.9 °C |
| 1 Oct 2025, 09:22 | 11.4 | 11.4 °C |
| 10 Jul 2025, 10:43 | 15.6 | 15.6 °C |
| 16 Apr 2025, 14:25 | 11.5 | 11.5 °C |
| 2 Jan 2025, 12:58 | 8.1 | 8.1 °C |
| 9 Oct 2024, 12:16 | 13.6 | 13.6 °C |
| 16 Jul 2024, 11:26 | 15.1 | 15.1 °C |
| 3 Apr 2024, 11:44 | 11 | 11 °C |
| 13 Mar 2024, 09:31 | 11 | 11 °C |
| 5 Feb 2024, 11:31 | 10.5 | 10.5 °C |
| 11 Jan 2024, 12:50 | 7.6 | 7.6 °C |
| 4 Dec 2023, 11:42 | 9.6 | 9.6 °C |
| 13 Nov 2023, 09:40 | 12.4 | 12.4 °C |
| 13 Oct 2023, 09:47 | 15.9 | 15.9 °C |
pH
code 0061
7.44
Sampled 2 Jan 2026, 9 months ago · 15 results banked
Every result (15)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jan 2026, 13:34 | 7.44 | 7.44 |
| 1 Oct 2025, 11:03 | 7.44 | 7.44 |
| 1 Oct 2025, 09:22 | 7.18 | 7.18 |
| 10 Jul 2025, 10:43 | 7.53 | 7.53 |
| 16 Apr 2025, 14:25 | 7.62 | 7.62 |
| 2 Jan 2025, 12:58 | 7.57 | 7.57 |
| 9 Oct 2024, 12:16 | 7.57 | 7.57 |
| 16 Jul 2024, 11:26 | 7.45 | 7.45 |
| 3 Apr 2024, 11:44 | 7.54 | 7.54 |
| 13 Mar 2024, 09:31 | 7.6 | 7.6 |
| 5 Feb 2024, 11:31 | 7.67 | 7.67 |
| 11 Jan 2024, 12:50 | 7.36 | 7.36 |
| 4 Dec 2023, 11:42 | 7.26 | 7.26 |
| 13 Nov 2023, 09:40 | 7.52 | 7.52 |
| 13 Oct 2023, 09:47 | 7.48 | 7.48 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.041 mg/l
Sampled 13 Mar 2024, 2.6 years ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Mar 2024, 09:31 | 0.041 | 0.041 mg/l |
| 5 Feb 2024, 11:31 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Jan 2024, 12:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Dec 2023, 11:42 | 0.1 | 0.1 mg/l |
| 13 Nov 2023, 09:40 | 0.11 | 0.11 mg/l |
| 13 Oct 2023, 09:47 | 0.051 | 0.051 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
11 mg/l
Sampled 13 Mar 2024, 2.6 years ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Mar 2024, 09:31 | 11 | 11 mg/l |
| 5 Feb 2024, 11:31 | 11 | 11 mg/l |
| 11 Jan 2024, 12:50 | 12 | 12 mg/l |
| 4 Dec 2023, 11:42 | 8.29 | 8.29 mg/l |
| 13 Nov 2023, 09:40 | 7.99 | 7.99 mg/l |
| 13 Oct 2023, 09:47 | 4.99 | 4.99 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.037 mg/l
Sampled 13 Mar 2024, 2.6 years ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Mar 2024, 09:31 | 0.037 | 0.037 mg/l |
| 5 Feb 2024, 11:31 | 0.039 | 0.039 mg/l |
| 11 Jan 2024, 12:50 | 0.036 | 0.036 mg/l |
| 4 Dec 2023, 11:42 | 0.059 | 0.059 mg/l |
| 13 Nov 2023, 09:40 | 0.054 | 0.054 mg/l |
| 13 Oct 2023, 09:47 | 0.15 | 0.15 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
381 µS/cm
Sampled 2 Jan 2026, 9 months ago · 15 results banked
Every result (15)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jan 2026, 13:34 | 381 | 381 µS/cm |
| 1 Oct 2025, 11:03 | 391 | 391 µS/cm |
| 1 Oct 2025, 09:22 | 391 | 391 µS/cm |
| 10 Jul 2025, 10:43 | 387 | 387 µS/cm |
| 16 Apr 2025, 14:25 | 339 | 339 µS/cm |
| 2 Jan 2025, 12:58 | 380 | 380 µS/cm |
| 9 Oct 2024, 12:16 | 395 | 395 µS/cm |
| 16 Jul 2024, 11:26 | 395 | 395 µS/cm |
| 3 Apr 2024, 11:44 | 360 | 360 µS/cm |
| 13 Mar 2024, 09:31 | 384 | 384 µS/cm |
| 5 Feb 2024, 11:31 | 405 | 405 µS/cm |
| 11 Jan 2024, 12:50 | 403 | 403 µS/cm |
| 4 Dec 2023, 11:42 | 353 | 353 µS/cm |
| 13 Nov 2023, 09:40 | 400 | 400 µS/cm |
| 13 Oct 2023, 09:47 | 414 | 414 µS/cm |
Everything measured here
12 determinands, each kept by its code, unit and sample material: results in different units or on different materials are never mixed. A “below” result is under the laboratory's detection limit, not zero.
Show all 12 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 15 | Oct 2023 – Jan 2026 | 99.5% 2 Jan 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 15 | Oct 2023 – Jan 2026 | 11.6 mg/l 2 Jan 2026 |
| Temperature of Water 0076 | River water | 15 | Oct 2023 – Jan 2026 | 8.6 °C 2 Jan 2026 |
| pH 0061 | River water | 15 | Oct 2023 – Jan 2026 | 7.44 2 Jan 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 6 | Oct 2023 – Mar 2024 | 0.041 mg/l 13 Mar 2024 |
| Nitrate as N 0117 | River water | 6 | Oct 2023 – Mar 2024 | 11 mg/l 13 Mar 2024 |
| Orthophosphate, reactive as P 0180 | River water | 6 | Oct 2023 – Mar 2024 | 0.037 mg/l 13 Mar 2024 |
| Conductivity at 25 C 0077 | River water | 15 | Oct 2023 – Jan 2026 | 381 µS/cm 2 Jan 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 6 | Oct 2023 – Mar 2024 | 33 mg/l 13 Mar 2024 |
| Ammonia un-ionised as N 0119 | River water | 6 | Oct 2023 – Mar 2024 | 0.00032 mg/l 13 Mar 2024 |
| Nitrite as N 0118 | River water | 6 | Oct 2023 – Mar 2024 | 0.023 mg/l 13 Mar 2024 |
| Nitrogen, Total Oxidised as N 0116 | River water | 6 | Oct 2023 – Mar 2024 | 11 mg/l 13 Mar 2024 |
FloodRadar does not grade these results: there is no overall score, and official river classifications are a separate dataset. A sample taken downstream of an overflow does not by itself show where anything in it came from. River connections and distances are traced on OS Open Rivers (edition 2026-04), which leaves out many small channels.
Water samples: Environment Agency Water Quality Archive, © Environment Agency and/or database right 2026, Open Government Licence v3.0.
Contains OS data © Crown copyright and database rights 2026.