Derwent at Sutton Lock
EA name: DERWENT AT SUTTON LOCK
Environment Agency sampling point NE-49600137 · 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 Sep 2026, 15:4329 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 27 since 18 Jul 2024 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 470540, 447476As published, to the nearest 1 m. Open in a map
- River, by its own name
- Derwent
- River, by the map
- River DerwentPlaced on the river its name gives, 13 m from the line.
- Next gauge downstream
- Elvington Sluices On the River Derwent · 0.2 km along the river
- Nearest gauge upstream
- Stamford Bridge On the River Derwent · 10 km along the river
- Why it was sampled
- Monitoring (national agency policy) (27 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
81.9%
Sampled 2 Sep 2026, 29 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 15:43 | 81.9 | 81.9% |
| 3 Aug 2026, 12:44 | 99.7 | 99.7% |
| 7 Jul 2026, 11:26 | 89.1 | 89.1% |
| 10 Jun 2026, 17:05 | 91.7 | 91.7% |
| 6 May 2026, 12:01 | 95.1 | 95.1% |
| 1 Apr 2026, 16:07 | 99.4 | 99.4% |
| 4 Mar 2026, 13:26 | 97.3 | 97.3% |
| 3 Feb 2026, 15:55 | 89.9 | 89.9% |
| 7 Jan 2026, 10:24 | 100 | 100% |
| 3 Dec 2025, 12:51 | 85.2 | 85.2% |
| 7 Nov 2025, 14:22 | 91.2 | 91.2% |
| 6 Oct 2025, 16:14 | 93.4 | 93.4% |
| 10 Sep 2025, 10:42 | 84.7 | 84.7% |
| 7 Aug 2025, 15:58 | 98.1 | 98.1% |
| 1 Jul 2025, 14:22 | 102 | 102% |
| 26 Jun 2025, 14:11 | 93.5 | 93.5% |
| 28 May 2025, 15:55 | 88.7 | 88.7% |
| 23 Apr 2025, 15:48 | 99.2 | 99.2% |
| 24 Mar 2025, 10:40 | 97.3 | 97.3% |
| 17 Feb 2025, 14:14 | 99.4 | 99.4% |
| 30 Jan 2025, 10:26 | 91.8 | 91.8% |
| 13 Dec 2024, 10:13 | 83.3 | 83.3% |
| 26 Nov 2024, 15:23 | 88.3 | 88.3% |
| 14 Oct 2024, 10:51 | 97.7 | 97.7% |
| 18 Sep 2024, 10:51 | 93.6 | 93.6% |
| 30 Aug 2024, 10:22 | 91.4 | 91.4% |
| 18 Jul 2024, 10:26 | 97.2 | 97.2% |
Dissolved oxygen
as O2 · code 9924 · mg/l
7.88 mg/l
Sampled 2 Sep 2026, 29 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 15:43 | 7.88 | 7.88 mg/l |
| 3 Aug 2026, 12:44 | 9.13 | 9.13 mg/l |
| 7 Jul 2026, 11:26 | 8.16 | 8.16 mg/l |
| 10 Jun 2026, 17:05 | 9.18 | 9.18 mg/l |
| 6 May 2026, 12:01 | 10.1 | 10.1 mg/l |
| 1 Apr 2026, 16:07 | 11.5 | 11.5 mg/l |
| 4 Mar 2026, 13:26 | 11.3 | 11.3 mg/l |
| 3 Feb 2026, 15:55 | 11.2 | 11.2 mg/l |
| 7 Jan 2026, 10:24 | 13.5 | 13.5 mg/l |
| 3 Dec 2025, 12:51 | 10.5 | 10.5 mg/l |
| 7 Nov 2025, 14:22 | 9.94 | 9.94 mg/l |
| 6 Oct 2025, 16:14 | 9.86 | 9.86 mg/l |
| 10 Sep 2025, 10:42 | 8.39 | 8.39 mg/l |
| 7 Aug 2025, 15:58 | 9.06 | 9.06 mg/l |
| 1 Jul 2025, 14:22 | 9.14 | 9.14 mg/l |
| 26 Jun 2025, 14:11 | 8.46 | 8.46 mg/l |
| 28 May 2025, 15:55 | 8.79 | 8.79 mg/l |
| 23 Apr 2025, 15:48 | 10.6 | 10.6 mg/l |
| 24 Mar 2025, 10:40 | 11.3 | 11.3 mg/l |
| 17 Feb 2025, 14:14 | 12.7 | 12.7 mg/l |
| 30 Jan 2025, 10:26 | 11.6 | 11.6 mg/l |
| 13 Dec 2024, 10:13 | 10.1 | 10.1 mg/l |
| 26 Nov 2024, 15:23 | 10.6 | 10.6 mg/l |
| 14 Oct 2024, 10:51 | 11.2 | 11.2 mg/l |
| 18 Sep 2024, 10:51 | 10 | 10 mg/l |
| 30 Aug 2024, 10:22 | 9.21 | 9.21 mg/l |
| 18 Jul 2024, 10:26 | 9.59 | 9.59 mg/l |
Water temperature
code 0076 · °C
17.1 °C
Sampled 2 Sep 2026, 29 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 15:43 | 17.1 | 17.1 °C |
| 3 Aug 2026, 12:44 | 19.5 | 19.5 °C |
| 7 Jul 2026, 11:26 | 19.5 | 19.5 °C |
| 10 Jun 2026, 17:05 | 15.2 | 15.2 °C |
| 6 May 2026, 12:01 | 12.7 | 12.7 °C |
| 1 Apr 2026, 16:07 | 8.8 | 8.8 °C |
| 4 Mar 2026, 13:26 | 8.9 | 8.9 °C |
| 3 Feb 2026, 15:55 | 5.9 | 5.9 °C |
| 7 Jan 2026, 10:24 | 2.9 | 2.9 °C |
| 3 Dec 2025, 12:51 | 6.4 | 6.4 °C |
| 7 Nov 2025, 14:22 | 11.4 | 11.4 °C |
| 6 Oct 2025, 16:14 | 12.8 | 12.8 °C |
| 10 Sep 2025, 10:42 | 15.7 | 15.7 °C |
| 7 Aug 2025, 15:58 | 19.1 | 19.1 °C |
| 1 Jul 2025, 14:22 | 20.6 | 20.6 °C |
| 26 Jun 2025, 14:11 | 20.1 | 20.1 °C |
| 28 May 2025, 15:55 | 15.7 | 15.7 °C |
| 23 Apr 2025, 15:48 | 12.1 | 12.1 °C |
| 24 Mar 2025, 10:40 | 8.7 | 8.7 °C |
| 17 Feb 2025, 14:14 | 5 | 5 °C |
| 30 Jan 2025, 10:26 | 5.3 | 5.3 °C |
| 13 Dec 2024, 10:13 | 6.8 | 6.8 °C |
| 26 Nov 2024, 15:23 | 7.3 | 7.3 °C |
| 14 Oct 2024, 10:51 | 9.2 | 9.2 °C |
| 18 Sep 2024, 10:51 | 12.2 | 12.2 °C |
| 30 Aug 2024, 10:22 | 14.9 | 14.9 °C |
| 18 Jul 2024, 10:26 | 15.9 | 15.9 °C |
pH
code 0061
7.87
Sampled 2 Sep 2026, 29 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 15:43 | 7.87 | 7.87 |
| 3 Aug 2026, 12:44 | 8.03 | 8.03 |
| 7 Jul 2026, 11:26 | 7.98 | 7.98 |
| 10 Jun 2026, 17:05 | 8.03 | 8.03 |
| 6 May 2026, 12:01 | 7.65 | 7.65 |
| 1 Apr 2026, 16:07 | 8.02 | 8.02 |
| 4 Mar 2026, 13:26 | 8.04 | 8.04 |
| 3 Feb 2026, 15:55 | 8.07 | 8.07 |
| 7 Jan 2026, 10:24 | 8.18 | 8.18 |
| 3 Dec 2025, 12:51 | 7.72 | 7.72 |
| 7 Nov 2025, 14:22 | 7.73 | 7.73 |
| 6 Oct 2025, 16:14 | 7.67 | 7.67 |
| 10 Sep 2025, 10:42 | 7.94 | 7.94 |
| 7 Aug 2025, 15:58 | 8.03 | 8.03 |
| 1 Jul 2025, 14:22 | 8.03 | 8.03 |
| 26 Jun 2025, 14:11 | 7.94 | 7.94 |
| 28 May 2025, 15:55 | 7.89 | 7.89 |
| 23 Apr 2025, 15:48 | 7.64 | 7.64 |
| 24 Mar 2025, 10:40 | 8.14 | 8.14 |
| 17 Feb 2025, 14:14 | 8.09 | 8.09 |
| 30 Jan 2025, 10:26 | 7.79 | 7.79 |
| 13 Dec 2024, 10:13 | 7.81 | 7.81 |
| 26 Nov 2024, 15:23 | 7.79 | 7.79 |
| 14 Oct 2024, 10:51 | 8.04 | 8.04 |
| 18 Sep 2024, 10:51 | 8.06 | 8.06 |
| 30 Aug 2024, 10:22 | 8.03 | 8.03 |
| 18 Jul 2024, 10:26 | 7.89 | 7.89 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.036 mg/l
Sampled 2 Sep 2026, 29 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 15:43 | 0.036 | 0.036 mg/l |
| 3 Aug 2026, 12:44 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Jul 2026, 11:26 | 0.032 | 0.032 mg/l |
| 10 Jun 2026, 17:05 | 0.038 | 0.038 mg/l |
| 6 May 2026, 12:01 | 0.055 | 0.055 mg/l |
| 1 Apr 2026, 16:07 | 0.043 | 0.043 mg/l |
| 4 Mar 2026, 13:26 | 0.032 | 0.032 mg/l |
| 3 Feb 2026, 15:55 | 0.03 | 0.03 mg/l |
| 7 Jan 2026, 10:24 | 0.11 | 0.11 mg/l |
| 3 Dec 2025, 12:51 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Nov 2025, 14:22 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Oct 2025, 16:14 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Sep 2025, 10:42 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Aug 2025, 15:58 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Jul 2025, 14:22 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 Jun 2025, 14:11 | 0.082 | 0.082 mg/l |
| 28 May 2025, 15:55 | 0.12 | 0.12 mg/l |
| 23 Apr 2025, 15:48 | 0.051 | 0.051 mg/l |
| 24 Mar 2025, 10:40 | 0.036 | 0.036 mg/l |
| 17 Feb 2025, 14:14 | 0.053 | 0.053 mg/l |
| 30 Jan 2025, 10:26 | 0.05 | 0.05 mg/l |
| 13 Dec 2024, 10:13 | 0.038 | 0.038 mg/l |
| 26 Nov 2024, 15:23 | 0.031 | 0.031 mg/l |
| 14 Oct 2024, 10:51 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Sep 2024, 10:51 | <0.03 | below 0.03 mg/l (not detected above this) |
| 30 Aug 2024, 10:22 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Jul 2024, 10:26 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
4.48 mg/l
Sampled 2 Sep 2026, 29 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 15:43 | 4.48 | 4.48 mg/l |
| 3 Aug 2026, 12:44 | 4.69 | 4.69 mg/l |
| 7 Jul 2026, 11:26 | 4.79 | 4.79 mg/l |
| 10 Jun 2026, 17:05 | 4.58 | 4.58 mg/l |
| 6 May 2026, 12:01 | 4.97 | 4.97 mg/l |
| 1 Apr 2026, 16:07 | 5.17 | 5.17 mg/l |
| 4 Mar 2026, 13:26 | 4.98 | 4.98 mg/l |
| 3 Feb 2026, 15:55 | 4.58 | 4.58 mg/l |
| 7 Jan 2026, 10:24 | 5.66 | 5.66 mg/l |
| 3 Dec 2025, 12:51 | 4.29 | 4.29 mg/l |
| 7 Nov 2025, 14:22 | 3.58 | 3.58 mg/l |
| 6 Oct 2025, 16:14 | 1.8 | 1.8 mg/l |
| 10 Sep 2025, 10:42 | 4.49 | 4.49 mg/l |
| 7 Aug 2025, 15:58 | 4.77 | 4.77 mg/l |
| 1 Jul 2025, 14:22 | 4.87 | 4.87 mg/l |
| 26 Jun 2025, 14:11 | 4.68 | 4.68 mg/l |
| 28 May 2025, 15:55 | 5.07 | 5.07 mg/l |
| 23 Apr 2025, 15:48 | 3.79 | 3.79 mg/l |
| 24 Mar 2025, 10:40 | 5.08 | 5.08 mg/l |
| 17 Feb 2025, 14:14 | 5.08 | 5.08 mg/l |
| 30 Jan 2025, 10:26 | 4.38 | 4.38 mg/l |
| 13 Dec 2024, 10:13 | 4.58 | 4.58 mg/l |
| 26 Nov 2024, 15:23 | 4.58 | 4.58 mg/l |
| 14 Oct 2024, 10:51 | 3.49 | 3.49 mg/l |
| 18 Sep 2024, 10:51 | 4.99 | 4.99 mg/l |
| 30 Aug 2024, 10:22 | 4.99 | 4.99 mg/l |
| 18 Jul 2024, 10:26 | 3.48 | 3.48 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.047 mg/l
Sampled 2 Sep 2026, 29 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 15:43 | 0.047 | 0.047 mg/l |
| 3 Aug 2026, 12:44 | 0.012 | 0.012 mg/l |
| 7 Jul 2026, 11:26 | 0.036 | 0.036 mg/l |
| 10 Jun 2026, 17:05 | 0.046 | 0.046 mg/l |
| 6 May 2026, 12:01 | 0.024 | 0.024 mg/l |
| 1 Apr 2026, 16:07 | 0.03 | 0.03 mg/l |
| 4 Mar 2026, 13:26 | 0.021 | 0.021 mg/l |
| 3 Feb 2026, 15:55 | 0.031 | 0.031 mg/l |
| 7 Jan 2026, 10:24 | 0.024 | 0.024 mg/l |
| 3 Dec 2025, 12:51 | 0.037 | 0.037 mg/l |
| 7 Nov 2025, 14:22 | 0.037 | 0.037 mg/l |
| 6 Oct 2025, 16:14 | 0.028 | 0.028 mg/l |
| 10 Sep 2025, 10:42 | 0.037 | 0.037 mg/l |
| 7 Aug 2025, 15:58 | 0.031 | 0.031 mg/l |
| 1 Jul 2025, 14:22 | 0.03 | 0.03 mg/l |
| 26 Jun 2025, 14:11 | 0.059 | 0.059 mg/l |
| 28 May 2025, 15:55 | 0.031 | 0.031 mg/l |
| 23 Apr 2025, 15:48 | <0.01 | below 0.01 mg/l (not detected above this) |
| 24 Mar 2025, 10:40 | 0.013 | 0.013 mg/l |
| 17 Feb 2025, 14:14 | 0.022 | 0.022 mg/l |
| 30 Jan 2025, 10:26 | 0.052 | 0.052 mg/l |
| 13 Dec 2024, 10:13 | 0.064 | 0.064 mg/l |
| 26 Nov 2024, 15:23 | 0.055 | 0.055 mg/l |
| 14 Oct 2024, 10:51 | 0.026 | 0.026 mg/l |
| 18 Sep 2024, 10:51 | 0.037 | 0.037 mg/l |
| 30 Aug 2024, 10:22 | 0.036 | 0.036 mg/l |
| 18 Jul 2024, 10:26 | 0.03 | 0.03 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
600 µS/cm
Sampled 2 Sep 2026, 29 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Sep 2026, 15:43 | 600 | 600 µS/cm |
| 3 Aug 2026, 12:44 | 630 | 630 µS/cm |
| 7 Jul 2026, 11:26 | 600 | 600 µS/cm |
| 10 Jun 2026, 17:05 | 545 | 545 µS/cm |
| 6 May 2026, 12:01 | 577 | 577 µS/cm |
| 1 Apr 2026, 16:07 | 549 | 549 µS/cm |
| 4 Mar 2026, 13:26 | 552 | 552 µS/cm |
| 3 Feb 2026, 15:55 | 453 | 453 µS/cm |
| 7 Jan 2026, 10:24 | 606 | 606 µS/cm |
| 3 Dec 2025, 12:51 | 368 | 368 µS/cm |
| 7 Nov 2025, 14:22 | 515 | 515 µS/cm |
| 6 Oct 2025, 16:14 | 257 | 257 µS/cm |
| 10 Sep 2025, 10:42 | 656 | 656 µS/cm |
| 7 Aug 2025, 15:58 | 652 | 652 µS/cm |
| 1 Jul 2025, 14:22 | 645 | 645 µS/cm |
| 26 Jun 2025, 14:11 | 642 | 642 µS/cm |
| 28 May 2025, 15:55 | 623 | 623 µS/cm |
| 23 Apr 2025, 15:48 | 615 | 615 µS/cm |
| 24 Mar 2025, 10:40 | 590 | 590 µS/cm |
| 17 Feb 2025, 14:14 | 573 | 573 µS/cm |
| 30 Jan 2025, 10:26 | 458 | 458 µS/cm |
| 13 Dec 2024, 10:13 | 425 | 425 µS/cm |
| 26 Nov 2024, 15:23 | 337 | 337 µS/cm |
| 14 Oct 2024, 10:51 | 483 | 483 µS/cm |
| 18 Sep 2024, 10:51 | 595 | 595 µS/cm |
| 30 Aug 2024, 10:22 | 594 | 594 µS/cm |
| 18 Jul 2024, 10:26 | 460 | 460 µS/cm |
Everything measured here
14 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 14 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 27 | Jul 2024 – Sep 2026 | 81.9% 2 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 27 | Jul 2024 – Sep 2026 | 7.88 mg/l 2 Sep 2026 |
| Temperature of Water 0076 | River water | 27 | Jul 2024 – Sep 2026 | 17.1 °C 2 Sep 2026 |
| pH 0061 | River water | 27 | Jul 2024 – Sep 2026 | 7.87 2 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 27 | Jul 2024 – Sep 2026 | 0.036 mg/l 2 Sep 2026 |
| Nitrate as N 0117 | River water | 27 | Jul 2024 – Sep 2026 | 4.48 mg/l 2 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 27 | Jul 2024 – Sep 2026 | 0.047 mg/l 2 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 27 | Jul 2024 – Sep 2026 | 600 µS/cm 2 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 27 | Jul 2024 – Sep 2026 | 180 mg/l 2 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 27 | Jul 2024 – Sep 2026 | 0.00082 mg/l 2 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 27 | Jul 2024 – Sep 2026 | below 3 mg/l 2 Sep 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 6 | Apr 2026 – Sep 2026 | 2.6 mg/l 2 Sep 2026 |
| Nitrite as N 0118 | River water | 27 | Jul 2024 – Sep 2026 | 0.025 mg/l 2 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 27 | Jul 2024 – Sep 2026 | 4.5 mg/l 2 Sep 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.