River Lew at Lewer Bridge
EA name: RIVER LEW AT LEWER BRIDGE (also listed as “RIVER LEW (TORRIDGE) AT LEWER BRIDGE”)
Environment Agency sampling point SW-72930805 · 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
- 14 Mar 2025, 10:2019 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
- 16 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 Planned investigation (local monitoring)
- Where
- National Grid 253130, 105250As published, to the nearest 10 m. Open in a map
- River, by its own name
- Lew
- River, by the map
- River LewPlaced on the river its name gives, 8 m from the line.
- Next gauge downstream
- Dolton On the River Torridge · 8.5 km along the river
- Nearest gauge upstream
- Gribbleford Bridge On the River Lew · 6.6 km along the river
- Why it was sampled
- Planned investigation (local monitoring) (13 samples)
Planned investigation (national agency policy) (3 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
96.6%
Sampled 14 Mar 2025, 19 months ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Mar 2025, 10:20 | 96.6 | 96.6% |
| 6 Feb 2025, 11:49 | 98.5 | 98.5% |
| 3 Jan 2025, 10:13 | 98.3 | 98.3% |
| 9 Dec 2024, 13:37 | 95.7 | 95.7% |
| 25 Nov 2024, 13:13 | 97.7 | 97.7% |
| 24 Oct 2024, 10:15 | 96.7 | 96.7% |
| 2 Sep 2024, 14:27 | 94.8 | 94.8% |
| 6 Aug 2024, 09:42 | 87.1 | 87.1% |
| 2 Jul 2024, 10:36 | 92.2 | 92.2% |
| 4 Jun 2024, 10:07 | 95.8 | 95.8% |
| 8 Mar 2024, 12:54 | 100.5 | 100.5% |
| 1 Feb 2024, 11:58 | 97.4 | 97.4% |
| 11 Jan 2024, 10:05 | 98.3 | 98.3% |
| 5 Dec 2023, 07:13 | 97.5 | 97.5% |
| 10 Nov 2023, 14:26 | 97.3 | 97.3% |
| 13 Oct 2023, 09:31 | 92.3 | 92.3% |
Dissolved oxygen
as O2 · code 9924 · mg/l
12.3 mg/l
Sampled 14 Mar 2025, 19 months ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Mar 2025, 10:20 | 12.3 | 12.3 mg/l |
| 6 Feb 2025, 11:49 | 12.6 | 12.6 mg/l |
| 3 Jan 2025, 10:13 | 13.1 | 13.1 mg/l |
| 9 Dec 2024, 13:37 | 11.3 | 11.3 mg/l |
| 25 Nov 2024, 13:13 | 11.1 | 11.1 mg/l |
| 24 Oct 2024, 10:15 | 10.4 | 10.4 mg/l |
| 2 Sep 2024, 14:27 | 9.1 | 9.1 mg/l |
| 6 Aug 2024, 09:42 | 8.4 | 8.4 mg/l |
| 2 Jul 2024, 10:36 | 9.17 | 9.17 mg/l |
| 4 Jun 2024, 10:07 | 9.72 | 9.72 mg/l |
| 8 Mar 2024, 12:54 | 12.1 | 12.1 mg/l |
| 1 Feb 2024, 11:58 | 11.5 | 11.5 mg/l |
| 11 Jan 2024, 10:05 | 13 | 13 mg/l |
| 5 Dec 2023, 07:13 | 11.8 | 11.8 mg/l |
| 10 Nov 2023, 14:26 | 11.1 | 11.1 mg/l |
| 13 Oct 2023, 09:31 | 9.11 | 9.11 mg/l |
Water temperature
code 0076 · °C
5 °C
Sampled 14 Mar 2025, 19 months ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Mar 2025, 10:20 | 5 | 5 °C |
| 6 Feb 2025, 11:49 | 5 | 5 °C |
| 3 Jan 2025, 10:13 | 3.4 | 3.4 °C |
| 9 Dec 2024, 13:37 | 7.9 | 7.9 °C |
| 25 Nov 2024, 13:13 | 9.8 | 9.8 °C |
| 24 Oct 2024, 10:15 | 12 | 12 °C |
| 2 Sep 2024, 14:27 | 17.2 | 17.2 °C |
| 6 Aug 2024, 09:42 | 17 | 17 °C |
| 2 Jul 2024, 10:36 | 15.5 | 15.5 °C |
| 4 Jun 2024, 10:07 | 14.6 | 14.6 °C |
| 8 Mar 2024, 12:54 | 7.3 | 7.3 °C |
| 1 Feb 2024, 11:58 | 7.9 | 7.9 °C |
| 11 Jan 2024, 10:05 | 3.5 | 3.5 °C |
| 5 Dec 2023, 07:13 | 7 | 7 °C |
| 10 Nov 2023, 14:26 | 9.6 | 9.6 °C |
| 13 Oct 2023, 09:31 | 15.9 | 15.9 °C |
pH
code 0061
7.59
Sampled 14 Mar 2025, 19 months ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Mar 2025, 10:20 | 7.59 | 7.59 |
| 6 Feb 2025, 11:49 | 7.52 | 7.52 |
| 3 Jan 2025, 10:13 | 7.36 | 7.36 |
| 9 Dec 2024, 13:37 | 7.52 | 7.52 |
| 25 Nov 2024, 13:13 | 7.35 | 7.35 |
| 24 Oct 2024, 10:15 | 7.36 | 7.36 |
| 2 Sep 2024, 14:27 | 7.44 | 7.44 |
| 6 Aug 2024, 09:42 | 7.98 | 7.98 |
| 2 Jul 2024, 10:36 | 7.45 | 7.45 |
| 4 Jun 2024, 10:07 | 7.7 | 7.7 |
| 8 Mar 2024, 12:54 | 7.47 | 7.47 |
| 1 Feb 2024, 11:58 | 7.48 | 7.48 |
| 11 Jan 2024, 10:05 | 7.18 | 7.18 |
| 5 Dec 2023, 07:13 | 7.79 | 7.79 |
| 10 Nov 2023, 14:26 | 7.35 | 7.35 |
| 13 Oct 2023, 09:31 | 6.94 | 6.94 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 14 Mar 2025, 19 months ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Mar 2025, 10:20 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Feb 2025, 11:49 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Jan 2025, 10:13 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Dec 2024, 13:37 | 0.084 | 0.084 mg/l |
| 25 Nov 2024, 13:13 | 0.042 | 0.042 mg/l |
| 24 Oct 2024, 10:15 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Sep 2024, 14:27 | 0.032 | 0.032 mg/l |
| 6 Aug 2024, 09:42 | 0.037 | 0.037 mg/l |
| 2 Jul 2024, 10:36 | 0.049 | 0.049 mg/l |
| 4 Jun 2024, 10:07 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Mar 2024, 12:54 | 0.07 | 0.07 mg/l |
| 1 Feb 2024, 11:58 | 0.035 | 0.035 mg/l |
| 11 Jan 2024, 10:05 | 0.038 | 0.038 mg/l |
| 5 Dec 2023, 07:13 | 0.13 | 0.13 mg/l |
| 10 Nov 2023, 14:26 | 0.11 | 0.11 mg/l |
| 13 Oct 2023, 09:31 | 0.23 | 0.23 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
1.4 mg/l
Sampled 14 Mar 2025, 19 months ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Mar 2025, 10:20 | 1.4 | 1.4 mg/l |
| 6 Feb 2025, 11:49 | 1.49 | 1.49 mg/l |
| 3 Jan 2025, 10:13 | 1.39 | 1.39 mg/l |
| 9 Dec 2024, 13:37 | 1.79 | 1.79 mg/l |
| 25 Nov 2024, 13:13 | 1.6 | 1.6 mg/l |
| 24 Oct 2024, 10:15 | 1.5 | 1.5 mg/l |
| 2 Sep 2024, 14:27 | 2.48 | 2.48 mg/l |
| 6 Aug 2024, 09:42 | 1.69 | 1.69 mg/l |
| 2 Jul 2024, 10:36 | 1.98 | 1.98 mg/l |
| 4 Jun 2024, 10:07 | 1.39 | 1.39 mg/l |
| 8 Mar 2024, 12:54 | 1.68 | 1.68 mg/l |
| 1 Feb 2024, 11:58 | 1.49 | 1.49 mg/l |
| 11 Jan 2024, 10:05 | 1.79 | 1.79 mg/l |
| 5 Dec 2023, 07:13 | 0.634 | 0.634 mg/l |
| 10 Nov 2023, 14:26 | 0.884 | 0.884 mg/l |
| 13 Oct 2023, 09:31 | 1.09 | 1.09 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.05 mg/l
Sampled 14 Mar 2025, 19 months ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Mar 2025, 10:20 | 0.05 | 0.05 mg/l |
| 6 Feb 2025, 11:49 | 0.037 | 0.037 mg/l |
| 3 Jan 2025, 10:13 | 0.032 | 0.032 mg/l |
| 9 Dec 2024, 13:37 | 0.028 | 0.028 mg/l |
| 25 Nov 2024, 13:13 | 0.034 | 0.034 mg/l |
| 24 Oct 2024, 10:15 | 0.03 | 0.03 mg/l |
| 2 Sep 2024, 14:27 | 0.28 | 0.28 mg/l |
| 6 Aug 2024, 09:42 | 0.17 | 0.17 mg/l |
| 2 Jul 2024, 10:36 | 0.2 | 0.2 mg/l |
| 4 Jun 2024, 10:07 | 0.077 | 0.077 mg/l |
| 8 Mar 2024, 12:54 | 0.043 | 0.043 mg/l |
| 1 Feb 2024, 11:58 | 0.045 | 0.045 mg/l |
| 11 Jan 2024, 10:05 | 0.035 | 0.035 mg/l |
| 5 Dec 2023, 07:13 | 0.039 | 0.039 mg/l |
| 10 Nov 2023, 14:26 | 0.033 | 0.033 mg/l |
| 13 Oct 2023, 09:31 | 0.061 | 0.061 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
174 µS/cm
Sampled 14 Mar 2025, 19 months ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Mar 2025, 10:20 | 174 | 174 µS/cm |
| 6 Feb 2025, 11:49 | 153 | 153 µS/cm |
| 3 Jan 2025, 10:13 | 171 | 171 µS/cm |
| 9 Dec 2024, 13:37 | 148 | 148 µS/cm |
| 25 Nov 2024, 13:13 | 128 | 128 µS/cm |
| 24 Oct 2024, 10:15 | 145 | 145 µS/cm |
| 2 Sep 2024, 14:27 | 233 | 233 µS/cm |
| 6 Aug 2024, 09:42 | 223 | 223 µS/cm |
| 2 Jul 2024, 10:36 | 261 | 261 µS/cm |
| 4 Jun 2024, 10:07 | 204 | 204 µS/cm |
| 8 Mar 2024, 12:54 | 150 | 150 µS/cm |
| 1 Feb 2024, 11:58 | 167 | 167 µS/cm |
| 11 Jan 2024, 10:05 | 154 | 154 µS/cm |
| 5 Dec 2023, 07:13 | 113 | 113 µS/cm |
| 10 Nov 2023, 14:26 | 137 | 137 µS/cm |
| 13 Oct 2023, 09:31 | 143 | 143 µS/cm |
E. coli
confirmed, membrane filtration · code 2348 · per 100 ml
6400 per 100 ml
Sampled 5 Dec 2023, 2.8 years ago · 3 results banked
Every result (3)
| Sampled | Result as published | Reads as |
|---|---|---|
| 5 Dec 2023, 07:13 | 6400 | 6400 per 100 ml |
| 10 Nov 2023, 14:26 | 4200 | 4200 per 100 ml |
| 13 Oct 2023, 09:31 | 55000 | 55000 per 100 ml |
Everything measured here
15 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 15 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 16 | Oct 2023 – Mar 2025 | 96.6% 14 Mar 2025 |
| Oxygen, Dissolved as O2 9924 | River water | 16 | Oct 2023 – Mar 2025 | 12.3 mg/l 14 Mar 2025 |
| Temperature of Water 0076 | River water | 16 | Oct 2023 – Mar 2025 | 5 °C 14 Mar 2025 |
| pH 0061 | River water | 16 | Oct 2023 – Mar 2025 | 7.59 14 Mar 2025 |
| Ammoniacal Nitrogen as N 0111 | River water | 16 | Oct 2023 – Mar 2025 | below 0.03 mg/l 14 Mar 2025 |
| Nitrate as N 0117 | River water | 16 | Oct 2023 – Mar 2025 | 1.4 mg/l 14 Mar 2025 |
| Orthophosphate, reactive as P 0180 | River water | 16 | Oct 2023 – Mar 2025 | 0.05 mg/l 14 Mar 2025 |
| Conductivity at 25 C 0077 | River water | 16 | Oct 2023 – Mar 2025 | 174 µS/cm 14 Mar 2025 |
| Escherichia coli : Confirmed : MF 2348 | River water | 3 | Oct 2023 – Dec 2023 | 6400 per 100 ml 5 Dec 2023 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 16 | Oct 2023 – Mar 2025 | 35 mg/l 14 Mar 2025 |
| Ammonia un-ionised as N 0119 | River water | 16 | Oct 2023 – Mar 2025 | below 0.00015 mg/l 14 Mar 2025 |
| Enterococci: Intestinal: Confirmed: MF 3723 | River water | 3 | Oct 2023 – Dec 2023 | 7900 colony forming units / 100ml 5 Dec 2023 |
| Enterococci: Intestinal: Presumptive: MF 3722 | River water | 3 | Oct 2023 – Dec 2023 | 9800 colony forming units / 100ml 5 Dec 2023 |
| Nitrite as N 0118 | River water | 16 | Oct 2023 – Mar 2025 | below 0.004 mg/l 14 Mar 2025 |
| Nitrogen, Total Oxidised as N 0116 | River water | 16 | Oct 2023 – Mar 2025 | 1.4 mg/l 14 Mar 2025 |
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.