River Irt at Gaterigghow
EA name: RIVER IRT AT GATERIGGHOW
Environment Agency sampling point NW-88005076 · 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
- 18 Mar 2026, 11:206 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 30 Sep 2026 and had nothing newer.
- Samples banked
- 29 since 11 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 310752, 504092As published, to the nearest 1 m. Open in a map
- River, by its own name
- Irt
- River, by the map
- River IrtPlaced on the river its name gives, 20 m from the line.
- Next gauge downstream
- None tracedIts water reaches the sea without passing a gauge.
- Nearest gauge upstream
- Galesyke On the River Irt · 3.4 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (23 samples)
Planned investigation (local monitoring) (6 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
101.5%
Sampled 18 Mar 2026, 6 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Mar 2026, 11:20 | 101.5 | 101.5% |
| 18 Feb 2026, 12:20 | 101.3 | 101.3% |
| 28 Jan 2026, 14:38 | 101.7 | 101.7% |
| 9 Dec 2025, 12:18 | 99.4 | 99.4% |
| 10 Nov 2025, 14:22 | 52.8 | 52.8% |
| 23 Oct 2025, 13:53 | 101.2 | 101.2% |
| 12 Sep 2025, 11:24 | 99.8 | 99.8% |
| 26 Aug 2025, 14:33 | 101.9 | 101.9% |
| 2 Jul 2025, 11:23 | 99.4 | 99.4% |
| 10 Jun 2025, 10:26 | 100.8 | 100.8% |
| 21 May 2025, 11:16 | 100.6 | 100.6% |
| 20 Mar 2025, 08:52 | 98.8 | 98.8% |
| 19 Feb 2025, 10:31 | 98.9 | 98.9% |
| 29 Jan 2025, 12:04 | 101.2 | 101.2% |
| 5 Dec 2024, 10:40 | 98 | 98% |
| 14 Nov 2024, 12:34 | 100 | 100% |
| 8 Oct 2024, 11:20 | 98.1 | 98.1% |
| 12 Sep 2024, 11:17 | 100.3 | 100.3% |
| 2 Aug 2024, 12:50 | 98.9 | 98.9% |
| 9 Jul 2024, 13:06 | 101.4 | 101.4% |
| 6 Jun 2024, 14:16 | 107.2 | 107.2% |
| 1 May 2024, 12:08 | 104.5 | 104.5% |
| 12 Apr 2024, 10:12 | 100 | 100% |
| 8 Mar 2024, 14:14 | 100.5 | 100.5% |
| 6 Feb 2024, 11:14 | 100.7 | 100.7% |
| 8 Jan 2024, 11:16 | 97.7 | 97.7% |
| 13 Dec 2023, 10:38 | 99 | 99% |
| 10 Nov 2023, 10:57 | 96.4 | 96.4% |
| 11 Oct 2023, 10:28 | 98.8 | 98.8% |
Dissolved oxygen
as O2 · code 9924 · mg/l
12.1 mg/l
Sampled 18 Mar 2026, 6 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Mar 2026, 11:20 | 12.1 | 12.1 mg/l |
| 18 Feb 2026, 12:20 | 12.9 | 12.9 mg/l |
| 28 Jan 2026, 14:38 | 12.4 | 12.4 mg/l |
| 9 Dec 2025, 12:18 | 11.4 | 11.4 mg/l |
| 10 Nov 2025, 14:22 | 5.78 | 5.78 mg/l |
| 23 Oct 2025, 13:53 | 11.1 | 11.1 mg/l |
| 12 Sep 2025, 11:24 | 10.2 | 10.2 mg/l |
| 26 Aug 2025, 14:33 | 9.84 | 9.84 mg/l |
| 2 Jul 2025, 11:23 | 9.93 | 9.93 mg/l |
| 10 Jun 2025, 10:26 | 10.7 | 10.7 mg/l |
| 21 May 2025, 11:16 | 10.7 | 10.7 mg/l |
| 20 Mar 2025, 08:52 | 12.4 | 12.4 mg/l |
| 19 Feb 2025, 10:31 | 12.5 | 12.5 mg/l |
| 29 Jan 2025, 12:04 | 12.4 | 12.4 mg/l |
| 5 Dec 2024, 10:40 | 11.3 | 11.3 mg/l |
| 14 Nov 2024, 12:34 | 11.2 | 11.2 mg/l |
| 8 Oct 2024, 11:20 | 10.5 | 10.5 mg/l |
| 12 Sep 2024, 11:17 | 10.7 | 10.7 mg/l |
| 2 Aug 2024, 12:50 | 9.53 | 9.53 mg/l |
| 9 Jul 2024, 13:06 | 10.3 | 10.3 mg/l |
| 6 Jun 2024, 14:16 | 11.3 | 11.3 mg/l |
| 1 May 2024, 12:08 | 11.6 | 11.6 mg/l |
| 12 Apr 2024, 10:12 | 11.8 | 11.8 mg/l |
| 8 Mar 2024, 14:14 | 12.1 | 12.1 mg/l |
| 6 Feb 2024, 11:14 | 12.1 | 12.1 mg/l |
| 8 Jan 2024, 11:16 | 12 | 12 mg/l |
| 13 Dec 2023, 10:38 | 11.9 | 11.9 mg/l |
| 10 Nov 2023, 10:57 | 11 | 11 mg/l |
| 11 Oct 2023, 10:28 | 10.3 | 10.3 mg/l |
Water temperature
code 0076 · °C
7.6 °C
Sampled 18 Mar 2026, 6 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Mar 2026, 11:20 | 7.6 | 7.6 °C |
| 18 Feb 2026, 12:20 | 5.2 | 5.2 °C |
| 28 Jan 2026, 14:38 | 6.7 | 6.7 °C |
| 9 Dec 2025, 12:18 | 9.4 | 9.4 °C |
| 10 Nov 2025, 14:22 | 11.2 | 11.2 °C |
| 23 Oct 2025, 13:53 | 11 | 11 °C |
| 12 Sep 2025, 11:24 | 14.2 | 14.2 °C |
| 26 Aug 2025, 14:33 | 16.9 | 16.9 °C |
| 2 Jul 2025, 11:23 | 15.3 | 15.3 °C |
| 10 Jun 2025, 10:26 | 12.6 | 12.6 °C |
| 21 May 2025, 11:16 | 12.6 | 12.6 °C |
| 20 Mar 2025, 08:52 | 5.5 | 5.5 °C |
| 19 Feb 2025, 10:31 | 5.2 | 5.2 °C |
| 29 Jan 2025, 12:04 | 6.5 | 6.5 °C |
| 5 Dec 2024, 10:40 | 9.1 | 9.1 °C |
| 14 Nov 2024, 12:34 | 10.1 | 10.1 °C |
| 8 Oct 2024, 11:20 | 12.3 | 12.3 °C |
| 12 Sep 2024, 11:17 | 12.5 | 12.5 °C |
| 2 Aug 2024, 12:50 | 17 | 17 °C |
| 9 Jul 2024, 13:06 | 14.4 | 14.4 °C |
| 6 Jun 2024, 14:16 | 12.9 | 12.9 °C |
| 1 May 2024, 12:08 | 10.6 | 10.6 °C |
| 12 Apr 2024, 10:12 | 8.1 | 8.1 °C |
| 8 Mar 2024, 14:14 | 7.3 | 7.3 °C |
| 6 Feb 2024, 11:14 | 7.4 | 7.4 °C |
| 8 Jan 2024, 11:16 | 6.6 | 6.6 °C |
| 13 Dec 2023, 10:38 | 7.5 | 7.5 °C |
| 10 Nov 2023, 10:57 | 9.4 | 9.4 °C |
| 11 Oct 2023, 10:28 | 13.5 | 13.5 °C |
pH
code 0061
7.74
Sampled 18 Mar 2026, 6 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Mar 2026, 11:20 | 7.74 | 7.74 |
| 18 Feb 2026, 12:20 | 7.4 | 7.4 |
| 28 Jan 2026, 14:38 | 7.36 | 7.36 |
| 9 Dec 2025, 12:18 | 6.73 | 6.73 |
| 10 Nov 2025, 14:22 | 6.89 | 6.89 |
| 23 Oct 2025, 13:53 | 8.05 | 8.05 |
| 12 Sep 2025, 11:24 | 8.14 | 8.14 |
| 26 Aug 2025, 14:33 | 7.97 | 7.97 |
| 2 Jul 2025, 11:23 | 7.37 | 7.37 |
| 10 Jun 2025, 10:26 | 7.56 | 7.56 |
| 21 May 2025, 11:16 | 7.55 | 7.55 |
| 20 Mar 2025, 08:52 | 6.91 | 6.91 |
| 19 Feb 2025, 10:31 | 6.47 | 6.47 |
| 29 Jan 2025, 12:04 | 6.96 | 6.96 |
| 5 Dec 2024, 10:40 | 6.86 | 6.86 |
| 14 Nov 2024, 12:34 | 7.06 | 7.06 |
| 8 Oct 2024, 11:20 | 6.84 | 6.84 |
| 12 Sep 2024, 11:17 | 7.36 | 7.36 |
| 2 Aug 2024, 12:50 | 6.92 | 6.92 |
| 9 Jul 2024, 13:06 | 7.38 | 7.38 |
| 6 Jun 2024, 14:16 | 7.62 | 7.62 |
| 1 May 2024, 12:08 | 7.44 | 7.44 |
| 12 Apr 2024, 10:12 | 6.83 | 6.83 |
| 8 Mar 2024, 14:14 | 7.91 | 7.91 |
| 6 Feb 2024, 11:14 | 7.92 | 7.92 |
| 8 Jan 2024, 11:16 | 7.12 | 7.12 |
| 13 Dec 2023, 10:38 | 6.53 | 6.53 |
| 10 Nov 2023, 10:57 | 7.21 | 7.21 |
| 11 Oct 2023, 10:28 | 7.16 | 7.16 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.002 mg/l (not detected above this)
Sampled 18 Mar 2026, 6 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Mar 2026, 11:20 | <0.002 | below 0.002 mg/l (not detected above this) |
| 18 Feb 2026, 12:20 | <0.002 | below 0.002 mg/l (not detected above this) |
| 28 Jan 2026, 14:38 | <0.002 | below 0.002 mg/l (not detected above this) |
| 9 Dec 2025, 12:18 | 0.0029 | 0.0029 mg/l |
| 10 Nov 2025, 14:22 | <0.002 | below 0.002 mg/l (not detected above this) |
| 23 Oct 2025, 13:53 | <0.002 | below 0.002 mg/l (not detected above this) |
| 12 Sep 2025, 11:24 | <0.002 | below 0.002 mg/l (not detected above this) |
| 26 Aug 2025, 14:33 | 0.0087 | 0.0087 mg/l |
| 2 Jul 2025, 11:23 | 0.0032 | 0.0032 mg/l |
| 10 Jun 2025, 10:26 | <0.002 | below 0.002 mg/l (not detected above this) |
| 21 May 2025, 11:16 | 0.01 | 0.01 mg/l |
| 20 Mar 2025, 08:52 | <0.002 | below 0.002 mg/l (not detected above this) |
| 19 Feb 2025, 10:31 | 0.0023 | 0.0023 mg/l |
| 29 Jan 2025, 12:04 | <0.002 | below 0.002 mg/l (not detected above this) |
| 5 Dec 2024, 10:40 | 0.003 | 0.003 mg/l |
| 14 Nov 2024, 12:34 | 0.0051 | 0.0051 mg/l |
| 8 Oct 2024, 11:20 | <0.002 | below 0.002 mg/l (not detected above this) |
| 12 Sep 2024, 11:17 | <0.002 | below 0.002 mg/l (not detected above this) |
| 2 Aug 2024, 12:50 | 0.0037 | 0.0037 mg/l |
| 9 Jul 2024, 13:06 | 0.0055 | 0.0055 mg/l |
| 6 Jun 2024, 14:16 | 0.0099 | 0.0099 mg/l |
| 1 May 2024, 12:08 | 0.0028 | 0.0028 mg/l |
| 12 Apr 2024, 10:12 | 0.0022 | 0.0022 mg/l |
| 8 Mar 2024, 14:14 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Feb 2024, 11:14 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Jan 2024, 11:16 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Dec 2023, 10:38 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Nov 2023, 10:57 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Oct 2023, 10:28 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.359 mg/l
Sampled 18 Mar 2026, 6 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Mar 2026, 11:20 | 0.359 | 0.359 mg/l |
| 18 Feb 2026, 12:20 | 0.379 | 0.379 mg/l |
| 28 Jan 2026, 14:38 | 0.367 | 0.367 mg/l |
| 9 Dec 2025, 12:18 | 0.329 | 0.329 mg/l |
| 10 Nov 2025, 14:22 | 0.309 | 0.309 mg/l |
| 23 Oct 2025, 13:53 | 0.309 | 0.309 mg/l |
| 12 Sep 2025, 11:24 | 0.309 | 0.309 mg/l |
| 26 Aug 2025, 14:33 | 0.389 | 0.389 mg/l |
| 2 Jul 2025, 11:23 | 0.309 | 0.309 mg/l |
| 10 Jun 2025, 10:26 | 0.319 | 0.319 mg/l |
| 21 May 2025, 11:16 | 0.439 | 0.439 mg/l |
| 20 Mar 2025, 08:52 | 0.519 | 0.519 mg/l |
| 19 Feb 2025, 10:31 | 0.449 | 0.449 mg/l |
| 29 Jan 2025, 12:04 | 0.379 | 0.379 mg/l |
| 5 Dec 2024, 10:40 | 0.318 | 0.318 mg/l |
| 14 Nov 2024, 12:34 | 0.357 | 0.357 mg/l |
| 8 Oct 2024, 11:20 | 0.339 | 0.339 mg/l |
| 12 Sep 2024, 11:17 | 0.309 | 0.309 mg/l |
| 2 Aug 2024, 12:50 | 0.319 | 0.319 mg/l |
| 9 Jul 2024, 13:06 | 0.319 | 0.319 mg/l |
| 6 Jun 2024, 14:16 | 0.487 | 0.487 mg/l |
| 1 May 2024, 12:08 | 0.379 | 0.379 mg/l |
| 12 Apr 2024, 10:12 | 0.338 | 0.338 mg/l |
| 8 Mar 2024, 14:14 | 0.406 | 0.406 mg/l |
| 6 Feb 2024, 11:14 | 0.386 | 0.386 mg/l |
| 8 Jan 2024, 11:16 | 0.426 | 0.426 mg/l |
| 13 Dec 2023, 10:38 | 0.396 | 0.396 mg/l |
| 10 Nov 2023, 10:57 | 0.356 | 0.356 mg/l |
| 11 Oct 2023, 10:28 | 0.206 | 0.206 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
below 0.001 mg/l (not detected above this)
Sampled 18 Mar 2026, 6 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Mar 2026, 11:20 | <0.001 | below 0.001 mg/l (not detected above this) |
| 18 Feb 2026, 12:20 | <0.001 | below 0.001 mg/l (not detected above this) |
| 28 Jan 2026, 14:38 | <0.001 | below 0.001 mg/l (not detected above this) |
| 9 Dec 2025, 12:18 | 0.0011 | 0.0011 mg/l |
| 10 Nov 2025, 14:22 | <0.001 | below 0.001 mg/l (not detected above this) |
| 23 Oct 2025, 13:53 | <0.001 | below 0.001 mg/l (not detected above this) |
| 12 Sep 2025, 11:24 | <0.001 | below 0.001 mg/l (not detected above this) |
| 26 Aug 2025, 14:33 | 0.0016 | 0.0016 mg/l |
| 2 Jul 2025, 11:23 | <0.001 | below 0.001 mg/l (not detected above this) |
| 10 Jun 2025, 10:26 | <0.001 | below 0.001 mg/l (not detected above this) |
| 21 May 2025, 11:16 | <0.001 | below 0.001 mg/l (not detected above this) |
| 20 Mar 2025, 08:52 | 0.0014 | 0.0014 mg/l |
| 19 Feb 2025, 10:31 | <0.001 | below 0.001 mg/l (not detected above this) |
| 29 Jan 2025, 12:04 | <0.001 | below 0.001 mg/l (not detected above this) |
| 5 Dec 2024, 10:40 | 0.0016 | 0.0016 mg/l |
| 14 Nov 2024, 12:34 | 0.0014 | 0.0014 mg/l |
| 8 Oct 2024, 11:20 | <0.001 | below 0.001 mg/l (not detected above this) |
| 12 Sep 2024, 11:17 | <0.001 | below 0.001 mg/l (not detected above this) |
| 2 Aug 2024, 12:50 | <0.001 | below 0.001 mg/l (not detected above this) |
| 9 Jul 2024, 13:06 | <0.001 | below 0.001 mg/l (not detected above this) |
| 6 Jun 2024, 14:16 | 0.0038 | 0.0038 mg/l |
| 1 May 2024, 12:08 | <0.001 | below 0.001 mg/l (not detected above this) |
| 12 Apr 2024, 10:12 | <0.001 | below 0.001 mg/l (not detected above this) |
| 8 Mar 2024, 14:14 | <0.01 | below 0.01 mg/l (not detected above this) |
| 6 Feb 2024, 11:14 | <0.01 | below 0.01 mg/l (not detected above this) |
| 8 Jan 2024, 11:16 | <0.01 | below 0.01 mg/l (not detected above this) |
| 13 Dec 2023, 10:38 | <0.01 | below 0.01 mg/l (not detected above this) |
| 10 Nov 2023, 10:57 | <0.01 | below 0.01 mg/l (not detected above this) |
| 11 Oct 2023, 10:28 | <0.01 | below 0.01 mg/l (not detected above this) |
Conductivity
at 25 °C · code 0077 · µS/cm
37 µS/cm
Sampled 18 Mar 2026, 6 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Mar 2026, 11:20 | 37 | 37 µS/cm |
| 18 Feb 2026, 12:20 | 40 | 40 µS/cm |
| 28 Jan 2026, 14:38 | 36 | 36 µS/cm |
| 9 Dec 2025, 12:18 | 37 | 37 µS/cm |
| 10 Nov 2025, 14:22 | 38 | 38 µS/cm |
| 23 Oct 2025, 13:53 | 41 | 41 µS/cm |
| 12 Sep 2025, 11:24 | 52 | 52 µS/cm |
| 26 Aug 2025, 14:33 | 49 | 49 µS/cm |
| 2 Jul 2025, 11:23 | 38 | 38 µS/cm |
| 10 Jun 2025, 10:26 | 48 | 48 µS/cm |
| 21 May 2025, 11:16 | 78 | 78 µS/cm |
| 20 Mar 2025, 08:52 | 52 | 52 µS/cm |
| 19 Feb 2025, 10:31 | 48 | 48 µS/cm |
| 29 Jan 2025, 12:04 | 41 | 41 µS/cm |
| 5 Dec 2024, 10:40 | 37 | 37 µS/cm |
| 14 Nov 2024, 12:34 | 45 | 45 µS/cm |
| 8 Oct 2024, 11:20 | 44 | 44 µS/cm |
| 12 Sep 2024, 11:17 | 50 | 50 µS/cm |
| 2 Aug 2024, 12:50 | 40 | 40 µS/cm |
| 9 Jul 2024, 13:06 | 41 | 41 µS/cm |
| 6 Jun 2024, 14:16 | 67 | 67 µS/cm |
| 1 May 2024, 12:08 | 42 | 42 µS/cm |
| 12 Apr 2024, 10:12 | 38 | 38 µS/cm |
| 8 Mar 2024, 14:14 | 43 | 43 µS/cm |
| 6 Feb 2024, 11:14 | 49 | 49 µS/cm |
| 8 Jan 2024, 11:16 | 42 | 42 µS/cm |
| 13 Dec 2023, 10:38 | 39 | 39 µS/cm |
| 10 Nov 2023, 10:57 | 37 | 37 µS/cm |
| 11 Oct 2023, 10:28 | 52 | 52 µS/cm |
Everything measured here
12 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 12 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 29 | Oct 2023 – Mar 2026 | 101.5% 18 Mar 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 29 | Oct 2023 – Mar 2026 | 12.1 mg/l 18 Mar 2026 |
| Temperature of Water 0076 | River water | 29 | Oct 2023 – Mar 2026 | 7.6 °C 18 Mar 2026 |
| pH 0061 | River water | 29 | Oct 2023 – Mar 2026 | 7.74 18 Mar 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 29 | Oct 2023 – Mar 2026 | below 0.002 mg/l 18 Mar 2026 |
| Nitrate as N 0117 | River water | 29 | Oct 2023 – Mar 2026 | 0.359 mg/l 18 Mar 2026 |
| Orthophosphate, reactive as P 0180 | River water | 29 | Oct 2023 – Mar 2026 | below 0.001 mg/l 18 Mar 2026 |
| Conductivity at 25 C 0077 | River water | 29 | Oct 2023 – Mar 2026 | 37 µS/cm 18 Mar 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 29 | Oct 2023 – Mar 2026 | below 8 mg/l 18 Mar 2026 |
| Ammonia un-ionised as N 0119 | River water | 29 | Oct 2023 – Mar 2026 | below 0.00002 mg/l 18 Mar 2026 |
| Nitrite as N 0118 | River water | 29 | Oct 2023 – Mar 2026 | below 0.001 mg/l 18 Mar 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 29 | Oct 2023 – Mar 2026 | 0.36 mg/l 18 Mar 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.