Esk downstream of Castleton By Howe Wath Bridge
EA name: ESK D/S CASTLETON BY HOWE WATH BRIDGE
Environment Agency sampling point NE-49000779 · 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
- 19 Jun 2026, 09:203 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 39 since 4 Oct 2023 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Monitoring (national agency policy)
- Where
- National Grid 469653, 508298As published, to the nearest 1 m. Open in a map
- River, by its own name
- Esk
- River, by the map
- River EskPlaced on the river its name gives, 3 m from the line.
- Next gauge downstream
- Lealholm On the River Esk · 12 km along the river
- Nearest gauge upstream
- Castleton On the River Esk · 1.6 km along the river
- Why it was sampled
- Monitoring (national agency policy) (31 samples)
Planned investigation (local monitoring) (8 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
95.2%
Sampled 19 Jun 2026, 3 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Jun 2026, 09:20 | 95.2 | 95.2% |
| 3 Jun 2026, 13:24 | 98.2 | 98.2% |
| 29 May 2026, 09:53 | 93.3 | 93.3% |
| 13 May 2026, 11:16 | 104.4 | 104.4% |
| 21 Apr 2026, 11:11 | 105.3 | 105.3% |
| 17 Apr 2026, 12:18 | 107 | 107% |
| 27 Mar 2026, 10:24 | 98.7 | 98.7% |
| 3 Mar 2026, 11:58 | 102.4 | 102.4% |
| 19 Feb 2026, 13:05 | 99.8 | 99.8% |
| 11 Feb 2026, 11:07 | 100.9 | 100.9% |
| 30 Jan 2026, 12:54 | 101 | 101% |
| 14 Jan 2026, 10:29 | 98.9 | 98.9% |
| 6 Mar 2025, 12:25 | 104.3 | 104.3% |
| 11 Feb 2025, 11:15 | 96 | 96% |
| 23 Jan 2025, 14:38 | 100.4 | 100.4% |
| 5 Dec 2024, 12:37 | 98.5 | 98.5% |
| 28 Nov 2024, 09:38 | 98.7 | 98.7% |
| 17 Oct 2024, 11:16 | 98.3 | 98.3% |
| 16 Sep 2024, 10:40 | 94.9 | 94.9% |
| 30 Aug 2024, 10:43 | 98.8 | 98.8% |
| 16 Jul 2024, 12:02 | 99.6 | 99.6% |
| 7 Jun 2024, 11:04 | 101.7 | 101.7% |
| 8 Mar 2024, 13:27 | 102.2 | 102.2% |
| 6 Feb 2024, 09:40 | 100.1 | 100.1% |
| 11 Jan 2024, 12:38 | 98.5 | 98.5% |
| 12 Dec 2023, 13:46 | 100.5 | 100.5% |
| 27 Nov 2023, 09:08 | 99.9 | 99.9% |
| 7 Nov 2023, 10:19 | 98.1 | 98.1% |
| 4 Oct 2023, 11:29 | 97.8 | 97.8% |
Dissolved oxygen
as O2 · code 9924 · mg/l
9.37 mg/l
Sampled 19 Jun 2026, 3 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Jun 2026, 09:20 | 9.37 | 9.37 mg/l |
| 3 Jun 2026, 13:24 | 10.1 | 10.1 mg/l |
| 29 May 2026, 09:53 | 9.45 | 9.45 mg/l |
| 13 May 2026, 11:16 | 12.1 | 12.1 mg/l |
| 21 Apr 2026, 11:11 | 12.3 | 12.3 mg/l |
| 17 Apr 2026, 12:18 | 11.7 | 11.7 mg/l |
| 27 Mar 2026, 10:24 | 12.1 | 12.1 mg/l |
| 3 Mar 2026, 11:58 | 12.4 | 12.4 mg/l |
| 19 Feb 2026, 13:05 | 12.9 | 12.9 mg/l |
| 11 Feb 2026, 11:07 | 12.5 | 12.5 mg/l |
| 30 Jan 2026, 12:54 | 13.1 | 13.1 mg/l |
| 14 Jan 2026, 10:29 | 13.1 | 13.1 mg/l |
| 6 Mar 2025, 12:25 | 12.6 | 12.6 mg/l |
| 11 Feb 2025, 11:15 | 12.6 | 12.6 mg/l |
| 23 Jan 2025, 14:38 | 14.2 | 14.2 mg/l |
| 5 Dec 2024, 12:37 | 11.9 | 11.9 mg/l |
| 28 Nov 2024, 09:38 | 12.9 | 12.9 mg/l |
| 17 Oct 2024, 11:16 | 10.7 | 10.7 mg/l |
| 16 Sep 2024, 10:40 | 10.4 | 10.4 mg/l |
| 30 Aug 2024, 10:43 | 10.3 | 10.3 mg/l |
| 16 Jul 2024, 12:02 | 10.4 | 10.4 mg/l |
| 7 Jun 2024, 11:04 | 11.2 | 11.2 mg/l |
| 8 Mar 2024, 13:27 | 12.7 | 12.7 mg/l |
| 6 Feb 2024, 09:40 | 11.7 | 11.7 mg/l |
| 11 Jan 2024, 12:38 | 12.3 | 12.3 mg/l |
| 12 Dec 2023, 13:46 | 12.2 | 12.2 mg/l |
| 27 Nov 2023, 09:08 | 12.5 | 12.5 mg/l |
| 7 Nov 2023, 10:19 | 11.6 | 11.6 mg/l |
| 4 Oct 2023, 11:29 | 10.7 | 10.7 mg/l |
Water temperature
code 0076 · °C
16 °C
Sampled 19 Jun 2026, 3 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Jun 2026, 09:20 | 16 | 16 °C |
| 3 Jun 2026, 13:24 | 13.8 | 13.8 °C |
| 29 May 2026, 09:53 | 14.7 | 14.7 °C |
| 13 May 2026, 11:16 | 8.7 | 8.7 °C |
| 21 Apr 2026, 11:11 | 8.5 | 8.5 °C |
| 17 Apr 2026, 12:18 | 11.1 | 11.1 °C |
| 27 Mar 2026, 10:24 | 6.6 | 6.6 °C |
| 3 Mar 2026, 11:58 | 7 | 7 °C |
| 19 Feb 2026, 13:05 | 4.5 | 4.5 °C |
| 11 Feb 2026, 11:07 | 6.2 | 6.2 °C |
| 30 Jan 2026, 12:54 | 4.3 | 4.3 °C |
| 14 Jan 2026, 10:29 | 3.5 | 3.5 °C |
| 6 Mar 2025, 12:25 | 7.2 | 7.2 °C |
| 11 Feb 2025, 11:15 | 3.9 | 3.9 °C |
| 23 Jan 2025, 14:38 | 1 | 1 °C |
| 5 Dec 2024, 12:37 | 7.2 | 7.2 °C |
| 28 Nov 2024, 09:38 | 4.2 | 4.2 °C |
| 17 Oct 2024, 11:16 | 11.5 | 11.5 °C |
| 16 Sep 2024, 10:40 | 11.1 | 11.1 °C |
| 30 Aug 2024, 10:43 | 13.3 | 13.3 °C |
| 16 Jul 2024, 12:02 | 13.2 | 13.2 °C |
| 7 Jun 2024, 11:04 | 10.9 | 10.9 °C |
| 8 Mar 2024, 13:27 | 5.9 | 5.9 °C |
| 6 Feb 2024, 09:40 | 8.4 | 8.4 °C |
| 11 Jan 2024, 12:38 | 5.7 | 5.7 °C |
| 12 Dec 2023, 13:46 | 6.8 | 6.8 °C |
| 27 Nov 2023, 09:08 | 5.9 | 5.9 °C |
| 7 Nov 2023, 10:19 | 7.9 | 7.9 °C |
| 4 Oct 2023, 11:29 | 11.4 | 11.4 °C |
pH
code 0061
7.5
Sampled 19 Jun 2026, 3 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Jun 2026, 09:20 | 7.5 | 7.5 |
| 3 Jun 2026, 13:24 | 8.18 | 8.18 |
| 29 May 2026, 09:53 | 7.45 | 7.45 |
| 13 May 2026, 11:16 | 7.69 | 7.69 |
| 21 Apr 2026, 11:11 | 7.89 | 7.89 |
| 17 Apr 2026, 12:18 | 7.72 | 7.72 |
| 27 Mar 2026, 10:24 | 7.56 | 7.56 |
| 3 Mar 2026, 11:58 | 8.6 | 8.6 |
| 19 Feb 2026, 13:05 | 7.24 | 7.24 |
| 11 Feb 2026, 11:07 | 7.22 | 7.22 |
| 30 Jan 2026, 12:54 | 7.14 | 7.14 |
| 14 Jan 2026, 10:29 | 7.42 | 7.42 |
| 6 Mar 2025, 12:25 | 7.56 | 7.56 |
| 11 Feb 2025, 11:15 | 7.37 | 7.37 |
| 23 Jan 2025, 14:38 | 7.82 | 7.82 |
| 5 Dec 2024, 12:37 | 7.47 | 7.47 |
| 28 Nov 2024, 09:38 | 7.27 | 7.27 |
| 17 Oct 2024, 11:16 | 7.46 | 7.46 |
| 16 Sep 2024, 10:40 | 7.55 | 7.55 |
| 30 Aug 2024, 10:43 | 7.86 | 7.86 |
| 16 Jul 2024, 12:02 | 7.7 | 7.7 |
| 7 Jun 2024, 11:04 | 7.48 | 7.48 |
| 8 Mar 2024, 13:27 | 7.77 | 7.77 |
| 6 Feb 2024, 09:40 | 7.8 | 7.8 |
| 11 Jan 2024, 12:38 | 7.37 | 7.37 |
| 12 Dec 2023, 13:46 | 7.8 | 7.8 |
| 27 Nov 2023, 09:08 | 8.15 | 8.15 |
| 7 Nov 2023, 10:19 | 7.84 | 7.84 |
| 4 Oct 2023, 11:29 | 7.7 | 7.7 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.052 mg/l
Sampled 19 Jun 2026, 3 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Jun 2026, 09:20 | 0.052 | 0.052 mg/l |
| 3 Jun 2026, 13:24 | 0.03 | 0.03 mg/l |
| 29 May 2026, 09:53 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 May 2026, 11:16 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Apr 2026, 11:11 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Apr 2026, 12:18 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Mar 2026, 10:24 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Mar 2026, 11:58 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Feb 2026, 13:05 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Feb 2026, 11:07 | 0.047 | 0.047 mg/l |
| 30 Jan 2026, 12:54 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Jan 2026, 10:29 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Mar 2025, 12:25 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Feb 2025, 11:15 | <0.03 | below 0.03 mg/l (not detected above this) |
| 23 Jan 2025, 14:38 | <0.03 | below 0.03 mg/l (not detected above this) |
| 28 Nov 2024, 09:38 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Oct 2024, 11:16 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Sep 2024, 10:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 30 Aug 2024, 10:43 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Jul 2024, 12:02 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Jun 2024, 11:04 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Mar 2024, 13:27 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Feb 2024, 09:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Jan 2024, 12:38 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Dec 2023, 13:46 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Nov 2023, 09:08 | 0.041 | 0.041 mg/l |
| 7 Nov 2023, 10:19 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Oct 2023, 11:29 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.475 mg/l
Sampled 19 Jun 2026, 3 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Jun 2026, 09:20 | 0.475 | 0.475 mg/l |
| 3 Jun 2026, 13:24 | 0.286 | 0.286 mg/l |
| 29 May 2026, 09:53 | 0.336 | 0.336 mg/l |
| 13 May 2026, 11:16 | 0.206 | 0.206 mg/l |
| 21 Apr 2026, 11:11 | 0.326 | 0.326 mg/l |
| 17 Apr 2026, 12:18 | 0.306 | 0.306 mg/l |
| 27 Mar 2026, 10:24 | 0.436 | 0.436 mg/l |
| 3 Mar 2026, 11:58 | 0.596 | 0.596 mg/l |
| 19 Feb 2026, 13:05 | 0.876 | 0.876 mg/l |
| 11 Feb 2026, 11:07 | 1.2 | 1.2 mg/l |
| 30 Jan 2026, 12:54 | 1.1 | 1.1 mg/l |
| 14 Jan 2026, 10:29 | 0.956 | 0.956 mg/l |
| 6 Mar 2025, 12:25 | 0.516 | 0.516 mg/l |
| 11 Feb 2025, 11:15 | 0.526 | 0.526 mg/l |
| 23 Jan 2025, 14:38 | 0.596 | 0.596 mg/l |
| 28 Nov 2024, 09:38 | 0.536 | 0.536 mg/l |
| 17 Oct 2024, 11:16 | 0.396 | 0.396 mg/l |
| 16 Sep 2024, 10:40 | 0.276 | 0.276 mg/l |
| 30 Aug 2024, 10:43 | 0.376 | 0.376 mg/l |
| 16 Jul 2024, 12:02 | 0.536 | 0.536 mg/l |
| 7 Jun 2024, 11:04 | 0.406 | 0.406 mg/l |
| 8 Mar 2024, 13:27 | 0.556 | 0.556 mg/l |
| 6 Feb 2024, 09:40 | 0.916 | 0.916 mg/l |
| 11 Jan 2024, 12:38 | 0.676 | 0.676 mg/l |
| 12 Dec 2023, 13:46 | 0.836 | 0.836 mg/l |
| 27 Nov 2023, 09:08 | 0.756 | 0.756 mg/l |
| 7 Nov 2023, 10:19 | 1.2 | 1.2 mg/l |
| 4 Oct 2023, 11:29 | <0.196 | below 0.196 mg/l (not detected above this) |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.015 mg/l
Sampled 19 Jun 2026, 3 months ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Jun 2026, 09:20 | 0.015 | 0.015 mg/l |
| 3 Jun 2026, 13:24 | 0.019 | 0.019 mg/l |
| 29 May 2026, 09:53 | <0.01 | below 0.01 mg/l (not detected above this) |
| 13 May 2026, 11:16 | <0.01 | below 0.01 mg/l (not detected above this) |
| 21 Apr 2026, 11:11 | <0.01 | below 0.01 mg/l (not detected above this) |
| 17 Apr 2026, 12:18 | <0.01 | below 0.01 mg/l (not detected above this) |
| 27 Mar 2026, 10:24 | <0.01 | below 0.01 mg/l (not detected above this) |
| 3 Mar 2026, 11:58 | <0.01 | below 0.01 mg/l (not detected above this) |
| 19 Feb 2026, 13:05 | <0.01 | below 0.01 mg/l (not detected above this) |
| 11 Feb 2026, 11:07 | 0.016 | 0.016 mg/l |
| 30 Jan 2026, 12:54 | <0.01 | below 0.01 mg/l (not detected above this) |
| 14 Jan 2026, 10:29 | <0.01 | below 0.01 mg/l (not detected above this) |
| 6 Mar 2025, 12:25 | <0.01 | below 0.01 mg/l (not detected above this) |
| 11 Feb 2025, 11:15 | <0.01 | below 0.01 mg/l (not detected above this) |
| 23 Jan 2025, 14:38 | <0.01 | below 0.01 mg/l (not detected above this) |
| 28 Nov 2024, 09:38 | 0.014 | 0.014 mg/l |
| 17 Oct 2024, 11:16 | <0.01 | below 0.01 mg/l (not detected above this) |
| 16 Sep 2024, 10:40 | 0.014 | 0.014 mg/l |
| 30 Aug 2024, 10:43 | 0.014 | 0.014 mg/l |
| 16 Jul 2024, 12:02 | 0.013 | 0.013 mg/l |
| 7 Jun 2024, 11:04 | 0.011 | 0.011 mg/l |
| 8 Mar 2024, 13:27 | <0.01 | below 0.01 mg/l (not detected above this) |
| 6 Feb 2024, 09:40 | <0.01 | below 0.01 mg/l (not detected above this) |
| 11 Jan 2024, 12:38 | <0.01 | below 0.01 mg/l (not detected above this) |
| 12 Dec 2023, 13:46 | <0.01 | below 0.01 mg/l (not detected above this) |
| 27 Nov 2023, 09:08 | <0.01 | below 0.01 mg/l (not detected above this) |
| 7 Nov 2023, 10:19 | <0.01 | below 0.01 mg/l (not detected above this) |
| 4 Oct 2023, 11:29 | 0.019 | 0.019 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
154 µS/cm
Sampled 19 Jun 2026, 3 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Jun 2026, 09:20 | 154 | 154 µS/cm |
| 3 Jun 2026, 13:24 | 197 | 197 µS/cm |
| 29 May 2026, 09:53 | 148 | 148 µS/cm |
| 13 May 2026, 11:16 | 141 | 141 µS/cm |
| 21 Apr 2026, 11:11 | 141 | 141 µS/cm |
| 17 Apr 2026, 12:18 | 134 | 134 µS/cm |
| 27 Mar 2026, 10:24 | 143 | 143 µS/cm |
| 3 Mar 2026, 11:58 | 125 | 125 µS/cm |
| 19 Feb 2026, 13:05 | 120 | 120 µS/cm |
| 11 Feb 2026, 11:07 | 150 | 150 µS/cm |
| 30 Jan 2026, 12:54 | 117 | 117 µS/cm |
| 14 Jan 2026, 10:29 | 117 | 117 µS/cm |
| 6 Mar 2025, 12:25 | 141 | 141 µS/cm |
| 11 Feb 2025, 11:15 | 115 | 115 µS/cm |
| 23 Jan 2025, 14:38 | 128 | 128 µS/cm |
| 5 Dec 2024, 12:37 | 111 | 111 µS/cm |
| 28 Nov 2024, 09:38 | 127 | 127 µS/cm |
| 17 Oct 2024, 11:16 | 102 | 102 µS/cm |
| 16 Sep 2024, 10:40 | 161 | 161 µS/cm |
| 30 Aug 2024, 10:43 | 167 | 167 µS/cm |
| 16 Jul 2024, 12:02 | 113 | 113 µS/cm |
| 7 Jun 2024, 11:04 | 126 | 126 µS/cm |
| 8 Mar 2024, 13:27 | 124 | 124 µS/cm |
| 6 Feb 2024, 09:40 | 151 | 151 µS/cm |
| 11 Jan 2024, 12:38 | 108 | 108 µS/cm |
| 12 Dec 2023, 13:46 | 109 | 109 µS/cm |
| 27 Nov 2023, 09:08 | 161 | 161 µS/cm |
| 7 Nov 2023, 10:19 | 105 | 105 µS/cm |
| 4 Oct 2023, 11:29 | 116 | 116 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 | 29 | Oct 2023 – Jun 2026 | 95.2% 19 Jun 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 29 | Oct 2023 – Jun 2026 | 9.37 mg/l 19 Jun 2026 |
| Temperature of Water 0076 | River water | 29 | Oct 2023 – Jun 2026 | 16 °C 19 Jun 2026 |
| pH 0061 | River water | 29 | Oct 2023 – Jun 2026 | 7.5 19 Jun 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 28 | Oct 2023 – Jun 2026 | 0.052 mg/l 19 Jun 2026 |
| Nitrate as N 0117 | River water | 28 | Oct 2023 – Jun 2026 | 0.475 mg/l 19 Jun 2026 |
| Orthophosphate, reactive as P 0180 | River water | 28 | Oct 2023 – Jun 2026 | 0.015 mg/l 19 Jun 2026 |
| Conductivity at 25 C 0077 | River water | 29 | Oct 2023 – Jun 2026 | 154 µS/cm 19 Jun 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 28 | Oct 2023 – Jun 2026 | 37 mg/l 19 Jun 2026 |
| Ammonia un-ionised as N 0119 | River water | 28 | Oct 2023 – Jun 2026 | 0.00047 mg/l 19 Jun 2026 |
| BOD : 5 Day ATU 0085 | River water | 23 | Jul 2024 – Jun 2026 | 1.2 mg/l 3 Jun 2026 |
| Nitrite as N 0118 | River water | 28 | Oct 2023 – Jun 2026 | 0.0049 mg/l 19 Jun 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 28 | Oct 2023 – Jun 2026 | 0.48 mg/l 19 Jun 2026 |
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.