River Deer at Deer Bridge
EA name: RIVER DEER AT DEER BRIDGE
Environment Agency sampling point SW-81201402 · 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
- 1 Sep 2026, 09:3330 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 20 since 2 Oct 2023 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Environmental monitoring statutory (EU directives)
- Where
- National Grid 231956, 97377As published, to the nearest 1 m. Open in a map
- River, by its own name
- Deer
- River, by the map
- River DeerPlaced on the river its name gives, 5 m from the line.
- Next gauge downstream
- Polson Bridge On the River Tamar · 17 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (13 samples)
Planned investigation (local monitoring) (7 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
86.4%
Sampled 1 Sep 2026, 30 days ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:33 | 86.4 | 86.4% |
| 14 Aug 2026, 12:30 | 87.5 | 87.5% |
| 14 Jul 2026, 14:33 | 103 | 103% |
| 16 Jun 2026, 11:13 | 95.4 | 95.4% |
| 8 May 2026, 13:41 | 96.4 | 96.4% |
| 20 Apr 2026, 11:06 | 96.7 | 96.7% |
| 3 Dec 2024, 11:13 | 96.7 | 96.7% |
| 5 Nov 2024, 11:19 | 93.9 | 93.9% |
| 14 Oct 2024, 13:46 | 89.5 | 89.5% |
| 4 Sep 2024, 10:00 | 92.4 | 92.4% |
| 2 Aug 2024, 09:50 | 94.1 | 94.1% |
| 5 Jul 2024, 09:12 | 91.8 | 91.8% |
| 6 Jun 2024, 11:55 | 97.9 | 97.9% |
| 4 Mar 2024, 12:06 | 95.1 | 95.1% |
| 7 Feb 2024, 11:53 | 91.6 | 91.6% |
| 3 Jan 2024, 12:42 | 94.8 | 94.8% |
| 5 Dec 2023, 10:11 | 93.7 | 93.7% |
| 13 Nov 2023, 15:20 | 91.5 | 91.5% |
| 2 Oct 2023, 10:38 | 92.5 | 92.5% |
Dissolved oxygen
as O2 · code 9924 · mg/l
8.65 mg/l
Sampled 1 Sep 2026, 30 days ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:33 | 8.65 | 8.65 mg/l |
| 14 Aug 2026, 12:30 | 7.92 | 7.92 mg/l |
| 14 Jul 2026, 14:33 | 9.07 | 9.07 mg/l |
| 16 Jun 2026, 11:13 | 9.57 | 9.57 mg/l |
| 8 May 2026, 13:41 | 9.87 | 9.87 mg/l |
| 20 Apr 2026, 11:06 | 10.8 | 10.8 mg/l |
| 3 Dec 2024, 11:13 | 11.5 | 11.5 mg/l |
| 5 Nov 2024, 11:19 | 10.3 | 10.3 mg/l |
| 14 Oct 2024, 13:46 | 9.62 | 9.62 mg/l |
| 4 Sep 2024, 10:00 | 9.14 | 9.14 mg/l |
| 2 Aug 2024, 09:50 | 8.94 | 8.94 mg/l |
| 5 Jul 2024, 09:12 | 9.21 | 9.21 mg/l |
| 6 Jun 2024, 11:55 | 10.1 | 10.1 mg/l |
| 4 Mar 2024, 12:06 | 11.6 | 11.6 mg/l |
| 7 Feb 2024, 11:53 | 10.4 | 10.4 mg/l |
| 3 Jan 2024, 12:42 | 10.9 | 10.9 mg/l |
| 5 Dec 2023, 10:11 | 11.2 | 11.2 mg/l |
| 13 Nov 2023, 15:20 | 9.88 | 9.88 mg/l |
| 2 Oct 2023, 10:38 | 9.24 | 9.24 mg/l |
Water temperature
code 0076 · °C
15.2 °C
Sampled 1 Sep 2026, 30 days ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:33 | 15.2 | 15.2 °C |
| 14 Aug 2026, 12:30 | 20.1 | 20.1 °C |
| 14 Jul 2026, 14:33 | 21.5 | 21.5 °C |
| 16 Jun 2026, 11:13 | 15.1 | 15.1 °C |
| 8 May 2026, 13:41 | 14.2 | 14.2 °C |
| 20 Apr 2026, 11:06 | 10.2 | 10.2 °C |
| 3 Dec 2024, 11:13 | 7.8 | 7.8 °C |
| 5 Nov 2024, 11:19 | 11.1 | 11.1 °C |
| 14 Oct 2024, 13:46 | 12 | 12 °C |
| 4 Sep 2024, 10:00 | 15.8 | 15.8 °C |
| 2 Aug 2024, 09:50 | 17.7 | 17.7 °C |
| 5 Jul 2024, 09:12 | 15.1 | 15.1 °C |
| 6 Jun 2024, 11:55 | 14 | 14 °C |
| 4 Mar 2024, 12:06 | 6.8 | 6.8 °C |
| 7 Feb 2024, 11:53 | 9.5 | 9.5 °C |
| 3 Jan 2024, 12:42 | 9.3 | 9.3 °C |
| 5 Dec 2023, 10:11 | 7.4 | 7.4 °C |
| 13 Nov 2023, 15:20 | 11.8 | 11.8 °C |
| 2 Oct 2023, 10:38 | 15.3 | 15.3 °C |
pH
code 0061
7.39
Sampled 1 Sep 2026, 30 days ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:33 | 7.39 | 7.39 |
| 14 Aug 2026, 12:30 | 7.71 | 7.71 |
| 14 Jul 2026, 14:33 | 7.67 | 7.67 |
| 16 Jun 2026, 11:13 | 7.54 | 7.54 |
| 8 May 2026, 13:41 | 7.59 | 7.59 |
| 20 Apr 2026, 11:06 | 7.68 | 7.68 |
| 3 Dec 2024, 11:13 | 7.36 | 7.36 |
| 5 Nov 2024, 11:19 | 7.53 | 7.53 |
| 14 Oct 2024, 13:46 | 7.16 | 7.16 |
| 4 Sep 2024, 10:00 | 7.91 | 7.91 |
| 2 Aug 2024, 09:50 | 8.43 | 8.43 |
| 5 Jul 2024, 09:12 | 7.65 | 7.65 |
| 6 Jun 2024, 11:55 | 7.92 | 7.92 |
| 4 Mar 2024, 12:06 | 7.34 | 7.34 |
| 7 Feb 2024, 11:53 | 7.19 | 7.19 |
| 3 Jan 2024, 12:42 | 7.22 | 7.22 |
| 5 Dec 2023, 10:11 | 7.12 | 7.12 |
| 13 Nov 2023, 15:20 | 7.22 | 7.22 |
| 2 Oct 2023, 10:38 | 7.51 | 7.51 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 1 Sep 2026, 30 days ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:33 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Aug 2026, 12:30 | 0.043 | 0.043 mg/l |
| 14 Jul 2026, 14:33 | 0.041 | 0.041 mg/l |
| 16 Jun 2026, 11:13 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 May 2026, 13:41 | 0.076 | 0.076 mg/l |
| 20 Apr 2026, 11:06 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Aug 2025, 15:06 | 0.038 | 0.038 mg/l |
| 3 Dec 2024, 11:13 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Nov 2024, 11:19 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Oct 2024, 13:46 | 0.55 | 0.55 mg/l |
| 4 Sep 2024, 10:00 | 0.032 | 0.032 mg/l |
| 2 Aug 2024, 09:50 | 0.039 | 0.039 mg/l |
| 5 Jul 2024, 09:12 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Jun 2024, 11:55 | 0.035 | 0.035 mg/l |
| 4 Mar 2024, 12:06 | 0.071 | 0.071 mg/l |
| 7 Feb 2024, 11:53 | 0.079 | 0.079 mg/l |
| 3 Jan 2024, 12:42 | 0.071 | 0.071 mg/l |
| 5 Dec 2023, 10:11 | 0.17 | 0.17 mg/l |
| 13 Nov 2023, 15:20 | 0.15 | 0.15 mg/l |
| 2 Oct 2023, 10:38 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
2.69 mg/l
Sampled 1 Sep 2026, 30 days ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:33 | 2.69 | 2.69 mg/l |
| 14 Aug 2026, 12:30 | 2.58 | 2.58 mg/l |
| 14 Jul 2026, 14:33 | 4.38 | 4.38 mg/l |
| 16 Jun 2026, 11:13 | 2.39 | 2.39 mg/l |
| 8 May 2026, 13:41 | 1.99 | 1.99 mg/l |
| 20 Apr 2026, 11:06 | 1.99 | 1.99 mg/l |
| 15 Aug 2025, 15:06 | 2.59 | 2.59 mg/l |
| 5 Nov 2024, 11:19 | 2.3 | 2.3 mg/l |
| 14 Oct 2024, 13:46 | 0.988 | 0.988 mg/l |
| 4 Sep 2024, 10:00 | 4.49 | 4.49 mg/l |
| 2 Aug 2024, 09:50 | 3.09 | 3.09 mg/l |
| 5 Jul 2024, 09:12 | 3.59 | 3.59 mg/l |
| 6 Jun 2024, 11:55 | 3.39 | 3.39 mg/l |
| 4 Mar 2024, 12:06 | 1.99 | 1.99 mg/l |
| 7 Feb 2024, 11:53 | 1.39 | 1.39 mg/l |
| 3 Jan 2024, 12:42 | 1.39 | 1.39 mg/l |
| 5 Dec 2023, 10:11 | 1.19 | 1.19 mg/l |
| 13 Nov 2023, 15:20 | 1.49 | 1.49 mg/l |
| 2 Oct 2023, 10:38 | 2.5 | 2.5 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.088 mg/l
Sampled 1 Sep 2026, 30 days ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:33 | 0.088 | 0.088 mg/l |
| 14 Aug 2026, 12:30 | 0.024 | 0.024 mg/l |
| 14 Jul 2026, 14:33 | 0.052 | 0.052 mg/l |
| 16 Jun 2026, 11:13 | 0.069 | 0.069 mg/l |
| 8 May 2026, 13:41 | 0.06 | 0.06 mg/l |
| 20 Apr 2026, 11:06 | 0.054 | 0.054 mg/l |
| 15 Aug 2025, 15:06 | 0.3 | 0.3 mg/l |
| 5 Nov 2024, 11:19 | 0.096 | 0.096 mg/l |
| 14 Oct 2024, 13:46 | 0.13 | 0.13 mg/l |
| 4 Sep 2024, 10:00 | 0.59 | 0.59 mg/l |
| 2 Aug 2024, 09:50 | 0.3 | 0.3 mg/l |
| 5 Jul 2024, 09:12 | 0.29 | 0.29 mg/l |
| 6 Jun 2024, 11:55 | 0.28 | 0.28 mg/l |
| 4 Mar 2024, 12:06 | 0.059 | 0.059 mg/l |
| 7 Feb 2024, 11:53 | 0.057 | 0.057 mg/l |
| 3 Jan 2024, 12:42 | 0.051 | 0.051 mg/l |
| 5 Dec 2023, 10:11 | 0.061 | 0.061 mg/l |
| 13 Nov 2023, 15:20 | 0.054 | 0.054 mg/l |
| 2 Oct 2023, 10:38 | 0.16 | 0.16 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
232 µS/cm
Sampled 1 Sep 2026, 30 days ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:33 | 232 | 232 µS/cm |
| 14 Aug 2026, 12:30 | 333 | 333 µS/cm |
| 14 Jul 2026, 14:33 | 322 | 322 µS/cm |
| 16 Jun 2026, 11:13 | 227 | 227 µS/cm |
| 8 May 2026, 13:41 | 244 | 244 µS/cm |
| 20 Apr 2026, 11:06 | 226 | 226 µS/cm |
| 3 Dec 2024, 11:13 | 170 | 170 µS/cm |
| 5 Nov 2024, 11:19 | 213 | 213 µS/cm |
| 14 Oct 2024, 13:46 | 157 | 157 µS/cm |
| 4 Sep 2024, 10:00 | 320 | 320 µS/cm |
| 2 Aug 2024, 09:50 | 336 | 336 µS/cm |
| 5 Jul 2024, 09:12 | 309 | 309 µS/cm |
| 6 Jun 2024, 11:55 | 274 | 274 µS/cm |
| 4 Mar 2024, 12:06 | 177 | 177 µS/cm |
| 7 Feb 2024, 11:53 | 136 | 136 µS/cm |
| 3 Jan 2024, 12:42 | 165 | 165 µS/cm |
| 5 Dec 2023, 10:11 | 152 | 152 µS/cm |
| 13 Nov 2023, 15:20 | 170 | 170 µS/cm |
| 2 Oct 2023, 10:38 | 220 | 220 µS/cm |
Everything measured here
13 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 13 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 19 | Oct 2023 – Sep 2026 | 86.4% 1 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 19 | Oct 2023 – Sep 2026 | 8.65 mg/l 1 Sep 2026 |
| Temperature of Water 0076 | River water | 19 | Oct 2023 – Sep 2026 | 15.2 °C 1 Sep 2026 |
| pH 0061 | River water | 19 | Oct 2023 – Sep 2026 | 7.39 1 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 20 | Oct 2023 – Sep 2026 | below 0.03 mg/l 1 Sep 2026 |
| Nitrate as N 0117 | River water | 19 | Oct 2023 – Sep 2026 | 2.69 mg/l 1 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 19 | Oct 2023 – Sep 2026 | 0.088 mg/l 1 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 19 | Oct 2023 – Sep 2026 | 232 µS/cm 1 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 19 | Oct 2023 – Sep 2026 | 39 mg/l 1 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 19 | Oct 2023 – Sep 2026 | below 0.0002 mg/l 1 Sep 2026 |
| Nitrite as N 0118 | River water | 20 | Oct 2023 – Sep 2026 | 0.013 mg/l 1 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 19 | Oct 2023 – Sep 2026 | 2.7 mg/l 1 Sep 2026 |
| Solids, Suspended at 105 C 0135 | River water | 7 | Oct 2023 – Aug 2025 | 8.2 mg/l 15 Aug 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.