Gaunless upstream of River Wear
EA name: GAUNLESS UPSTREAM OF RIVER WEAR
Environment Agency sampling point NE-44300075 · 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 Apr 2025, 12:3218 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
- 19 since 22 Nov 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 421421, 530704As published, to the nearest 1 m. Open in a map
- River, by its own name
- Gaunless
- River, by the map
- River GaunlessPlaced on the river its name gives, 5 m from the line.
- Next gauge downstream
- Sunderland Bridge On the River Wear · 14 km along the river
- Nearest gauge upstream
- South Church On the River Gaunless · 3.9 km along the river
- Why it was sampled
- Monitoring (national agency policy) (19 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
102.6%
Sampled 2 Apr 2025, 18 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Apr 2025, 12:32 | 102.6 | 102.6% |
| 3 Mar 2025, 12:21 | 102.8 | 102.8% |
| 3 Feb 2025, 12:17 | 103.8 | 103.8% |
| 20 Jan 2025, 10:35 | 99.5 | 99.5% |
| 4 Dec 2024, 09:47 | 98.7 | 98.7% |
| 20 Nov 2024, 12:48 | 102.4 | 102.4% |
| 14 Oct 2024, 12:01 | 99.2 | 99.2% |
| 16 Sep 2024, 09:46 | 98 | 98% |
| 21 Aug 2024, 10:59 | 99.4 | 99.4% |
| 16 Jul 2024, 11:05 | 104.9 | 104.9% |
| 18 Jun 2024, 12:35 | 103 | 103% |
| 13 May 2024, 10:44 | 101.2 | 101.2% |
| 18 Apr 2024, 09:23 | 101.9 | 101.9% |
| 21 Mar 2024, 07:33 | 97.6 | 97.6% |
| 21 Feb 2024, 14:34 | 96.3 | 96.3% |
| 15 Jan 2024, 10:47 | 99.8 | 99.8% |
| 14 Dec 2023, 10:02 | 68.9 | 68.9% |
| 6 Dec 2023, 09:12 | 92.5 | 92.5% |
| 22 Nov 2023, 09:51 | 97.8 | 97.8% |
Dissolved oxygen
as O2 · code 9924 · mg/l
11.7 mg/l
Sampled 2 Apr 2025, 18 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Apr 2025, 12:32 | 11.7 | 11.7 mg/l |
| 3 Mar 2025, 12:21 | 12.4 | 12.4 mg/l |
| 3 Feb 2025, 12:17 | 12.9 | 12.9 mg/l |
| 20 Jan 2025, 10:35 | 13 | 13 mg/l |
| 4 Dec 2024, 09:47 | 12.7 | 12.7 mg/l |
| 20 Nov 2024, 12:48 | 13.6 | 13.6 mg/l |
| 14 Oct 2024, 12:01 | 11.9 | 11.9 mg/l |
| 16 Sep 2024, 09:46 | 10.8 | 10.8 mg/l |
| 21 Aug 2024, 10:59 | 10.4 | 10.4 mg/l |
| 16 Jul 2024, 11:05 | 10.6 | 10.6 mg/l |
| 18 Jun 2024, 12:35 | 10.7 | 10.7 mg/l |
| 13 May 2024, 10:44 | 10.3 | 10.3 mg/l |
| 18 Apr 2024, 09:23 | 12.3 | 12.3 mg/l |
| 21 Mar 2024, 07:33 | 11.4 | 11.4 mg/l |
| 21 Feb 2024, 14:34 | 11.4 | 11.4 mg/l |
| 15 Jan 2024, 10:47 | 13.5 | 13.5 mg/l |
| 14 Dec 2023, 10:02 | 8.7 | 8.7 mg/l |
| 6 Dec 2023, 09:12 | 12.1 | 12.1 mg/l |
| 22 Nov 2023, 09:51 | 11.3 | 11.3 mg/l |
Water temperature
code 0076 · °C
9.4 °C
Sampled 2 Apr 2025, 18 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Apr 2025, 12:32 | 9.4 | 9.4 °C |
| 3 Mar 2025, 12:21 | 7.3 | 7.3 °C |
| 3 Feb 2025, 12:17 | 6.1 | 6.1 °C |
| 20 Jan 2025, 10:35 | 4.2 | 4.2 °C |
| 4 Dec 2024, 09:47 | 4.8 | 4.8 °C |
| 20 Nov 2024, 12:48 | 3.5 | 3.5 °C |
| 14 Oct 2024, 12:01 | 7.3 | 7.3 °C |
| 16 Sep 2024, 09:46 | 11 | 11 °C |
| 21 Aug 2024, 10:59 | 13.4 | 13.4 °C |
| 16 Jul 2024, 11:05 | 14.9 | 14.9 °C |
| 18 Jun 2024, 12:35 | 13.7 | 13.7 °C |
| 13 May 2024, 10:44 | 14.4 | 14.4 °C |
| 18 Apr 2024, 09:23 | 7.2 | 7.2 °C |
| 21 Mar 2024, 07:33 | 8.5 | 8.5 °C |
| 21 Feb 2024, 14:34 | 8.1 | 8.1 °C |
| 15 Jan 2024, 10:47 | 2.7 | 2.7 °C |
| 14 Dec 2023, 10:02 | 5.4 | 5.4 °C |
| 6 Dec 2023, 09:12 | 3.9 | 3.9 °C |
| 22 Nov 2023, 09:51 | 8.8 | 8.8 °C |
pH
code 0061
8.45
Sampled 2 Apr 2025, 18 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Apr 2025, 12:32 | 8.45 | 8.45 |
| 3 Mar 2025, 12:21 | 8.29 | 8.29 |
| 3 Feb 2025, 12:17 | 8.12 | 8.12 |
| 20 Jan 2025, 10:35 | 8.01 | 8.01 |
| 4 Dec 2024, 09:47 | 8.1 | 8.1 |
| 20 Nov 2024, 12:48 | 8.23 | 8.23 |
| 14 Oct 2024, 12:01 | 8 | 8 |
| 16 Sep 2024, 09:46 | 8.19 | 8.19 |
| 21 Aug 2024, 10:59 | 8.03 | 8.03 |
| 16 Jul 2024, 11:05 | 8.02 | 8.02 |
| 18 Jun 2024, 12:35 | 8.22 | 8.22 |
| 13 May 2024, 10:44 | 8.02 | 8.02 |
| 18 Apr 2024, 09:23 | 8.16 | 8.16 |
| 21 Mar 2024, 07:33 | 8.01 | 8.01 |
| 21 Feb 2024, 14:34 | 7.87 | 7.87 |
| 15 Jan 2024, 10:47 | 7.9 | 7.9 |
| 14 Dec 2023, 10:02 | 7.72 | 7.72 |
| 6 Dec 2023, 09:12 | 7.65 | 7.65 |
| 22 Nov 2023, 09:51 | 8.1 | 8.1 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 2 Apr 2025, 18 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Apr 2025, 12:32 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Mar 2025, 12:21 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Feb 2025, 12:17 | 0.051 | 0.051 mg/l |
| 20 Jan 2025, 10:35 | 0.065 | 0.065 mg/l |
| 4 Dec 2024, 09:47 | 0.045 | 0.045 mg/l |
| 20 Nov 2024, 12:48 | 0.034 | 0.034 mg/l |
| 14 Oct 2024, 12:01 | 0.044 | 0.044 mg/l |
| 16 Sep 2024, 09:46 | 0.034 | 0.034 mg/l |
| 21 Aug 2024, 10:59 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Jul 2024, 11:05 | 0.032 | 0.032 mg/l |
| 18 Jun 2024, 12:35 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 May 2024, 10:44 | 0.15 | 0.15 mg/l |
| 18 Apr 2024, 09:23 | 0.12 | 0.12 mg/l |
| 21 Mar 2024, 07:33 | 0.063 | 0.063 mg/l |
| 21 Feb 2024, 14:34 | 0.26 | 0.26 mg/l |
| 15 Jan 2024, 10:47 | 0.073 | 0.073 mg/l |
| 14 Dec 2023, 10:02 | 0.28 | 0.28 mg/l |
| 6 Dec 2023, 09:12 | 0.23 | 0.23 mg/l |
| 22 Nov 2023, 09:51 | 0.26 | 0.26 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
1.49 mg/l
Sampled 2 Apr 2025, 18 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Apr 2025, 12:32 | 1.49 | 1.49 mg/l |
| 3 Mar 2025, 12:21 | 2.59 | 2.59 mg/l |
| 3 Feb 2025, 12:17 | 2.68 | 2.68 mg/l |
| 20 Jan 2025, 10:35 | 2.58 | 2.58 mg/l |
| 4 Dec 2024, 09:47 | 2.19 | 2.19 mg/l |
| 20 Nov 2024, 12:48 | 2.09 | 2.09 mg/l |
| 14 Oct 2024, 12:01 | 2.39 | 2.39 mg/l |
| 16 Sep 2024, 09:46 | 1.49 | 1.49 mg/l |
| 21 Aug 2024, 10:59 | 1.7 | 1.7 mg/l |
| 16 Jul 2024, 11:05 | 1.78 | 1.78 mg/l |
| 18 Jun 2024, 12:35 | 1.59 | 1.59 mg/l |
| 13 May 2024, 10:44 | 1.86 | 1.86 mg/l |
| 18 Apr 2024, 09:23 | 2.47 | 2.47 mg/l |
| 21 Mar 2024, 07:33 | 2.37 | 2.37 mg/l |
| 21 Feb 2024, 14:34 | 2.47 | 2.47 mg/l |
| 15 Jan 2024, 10:47 | 2.28 | 2.28 mg/l |
| 14 Dec 2023, 10:02 | 3.08 | 3.08 mg/l |
| 6 Dec 2023, 09:12 | 3.28 | 3.28 mg/l |
| 22 Nov 2023, 09:51 | 2.68 | 2.68 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
below 0.01 mg/l (not detected above this)
Sampled 2 Apr 2025, 18 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Apr 2025, 12:32 | <0.01 | below 0.01 mg/l (not detected above this) |
| 3 Mar 2025, 12:21 | <0.01 | below 0.01 mg/l (not detected above this) |
| 3 Feb 2025, 12:17 | 0.014 | 0.014 mg/l |
| 20 Jan 2025, 10:35 | <0.01 | below 0.01 mg/l (not detected above this) |
| 4 Dec 2024, 09:47 | <0.01 | below 0.01 mg/l (not detected above this) |
| 20 Nov 2024, 12:48 | <0.01 | below 0.01 mg/l (not detected above this) |
| 14 Oct 2024, 12:01 | 0.025 | 0.025 mg/l |
| 16 Sep 2024, 09:46 | <0.01 | below 0.01 mg/l (not detected above this) |
| 21 Aug 2024, 10:59 | <0.01 | below 0.01 mg/l (not detected above this) |
| 16 Jul 2024, 11:05 | 0.037 | 0.037 mg/l |
| 18 Jun 2024, 12:35 | <0.01 | below 0.01 mg/l (not detected above this) |
| 13 May 2024, 10:44 | <0.01 | below 0.01 mg/l (not detected above this) |
| 18 Apr 2024, 09:23 | 0.014 | 0.014 mg/l |
| 21 Mar 2024, 07:33 | 0.016 | 0.016 mg/l |
| 21 Feb 2024, 14:34 | 0.056 | 0.056 mg/l |
| 15 Jan 2024, 10:47 | 0.018 | 0.018 mg/l |
| 14 Dec 2023, 10:02 | 0.081 | 0.081 mg/l |
| 6 Dec 2023, 09:12 | 0.079 | 0.079 mg/l |
| 22 Nov 2023, 09:51 | 0.072 | 0.072 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
1054 µS/cm
Sampled 2 Apr 2025, 18 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Apr 2025, 12:32 | 1054 | 1054 µS/cm |
| 3 Mar 2025, 12:21 | 823 | 823 µS/cm |
| 3 Feb 2025, 12:17 | 798 | 798 µS/cm |
| 20 Jan 2025, 10:35 | 757 | 757 µS/cm |
| 4 Dec 2024, 09:47 | 1010 | 1010 µS/cm |
| 20 Nov 2024, 12:48 | 1037 | 1037 µS/cm |
| 14 Oct 2024, 12:01 | 566 | 566 µS/cm |
| 16 Sep 2024, 09:46 | 1278 | 1278 µS/cm |
| 21 Aug 2024, 10:59 | 1237 | 1237 µS/cm |
| 16 Jul 2024, 11:05 | 920 | 920 µS/cm |
| 18 Jun 2024, 12:35 | 981 | 981 µS/cm |
| 13 May 2024, 10:44 | 898 | 898 µS/cm |
| 18 Apr 2024, 09:23 | 801 | 801 µS/cm |
| 21 Mar 2024, 07:33 | 788 | 788 µS/cm |
| 21 Feb 2024, 14:34 | 692 | 692 µS/cm |
| 15 Jan 2024, 10:47 | 672 | 672 µS/cm |
| 14 Dec 2023, 10:02 | 472 | 472 µS/cm |
| 6 Dec 2023, 09:12 | 519 | 519 µS/cm |
| 22 Nov 2023, 09:51 | 623 | 623 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 | Nov 2023 – Apr 2025 | 102.6% 2 Apr 2025 |
| Oxygen, Dissolved as O2 9924 | River water | 19 | Nov 2023 – Apr 2025 | 11.7 mg/l 2 Apr 2025 |
| Temperature of Water 0076 | River water | 19 | Nov 2023 – Apr 2025 | 9.4 °C 2 Apr 2025 |
| pH 0061 | River water | 19 | Nov 2023 – Apr 2025 | 8.45 2 Apr 2025 |
| Ammoniacal Nitrogen as N 0111 | River water | 19 | Nov 2023 – Apr 2025 | below 0.03 mg/l 2 Apr 2025 |
| Nitrate as N 0117 | River water | 19 | Nov 2023 – Apr 2025 | 1.49 mg/l 2 Apr 2025 |
| Orthophosphate, reactive as P 0180 | River water | 19 | Nov 2023 – Apr 2025 | below 0.01 mg/l 2 Apr 2025 |
| Conductivity at 25 C 0077 | River water | 19 | Nov 2023 – Apr 2025 | 1054 µS/cm 2 Apr 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 19 | Nov 2023 – Apr 2025 | 260 mg/l 2 Apr 2025 |
| Ammonia un-ionised as N 0119 | River water | 19 | Nov 2023 – Apr 2025 | below 0.00052 mg/l 2 Apr 2025 |
| BOD : 5 Day ATU 0085 | River water | 15 | Feb 2024 – Apr 2025 | 1.4 mg/l 2 Apr 2025 |
| Nitrite as N 0118 | River water | 19 | Nov 2023 – Apr 2025 | 0.0073 mg/l 2 Apr 2025 |
| Nitrogen, Total Oxidised as N 0116 | River water | 19 | Nov 2023 – Apr 2025 | 1.5 mg/l 2 Apr 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.