Tyersal Beck at Tyersal Lane
EA name: TYERSAL BECK AT TYERSAL LANE (also listed as “TYERSAL BECK AT TYERSAL LANE D/S SMALEWELL STW”)
Environment Agency sampling point NE-49400624 · 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
- 12 May 2026, 15:445 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
- 27 since 25 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 420908, 432658As published, to the nearest 1 m. Open in a map
- River, by its own name
- Tyersal Beck
- River, by the map
- Tyersal BeckPlaced on the river its name gives, 0 m from the line.
- Next gauge downstream
- Pudsey On the Farnley Beck · 7.7 km along the river
- Why it was sampled
- Monitoring (national agency policy) (27 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
111.9%
Sampled 12 May 2026, 5 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 15:44 | 111.9 | 111.9% |
| 23 Apr 2026, 10:18 | 102.4 | 102.4% |
| 10 Apr 2026, 12:53 | 107.8 | 107.8% |
| 17 Mar 2026, 14:06 | 98.6 | 98.6% |
| 4 Mar 2026, 14:56 | 99 | 99% |
| 20 Feb 2026, 10:56 | 98.9 | 98.9% |
| 4 Feb 2026, 10:32 | 99.1 | 99.1% |
| 26 Jan 2026, 13:51 | 96 | 96% |
| 13 Jan 2026, 10:23 | 96.6 | 96.6% |
| 17 Dec 2025, 10:52 | 97.8 | 97.8% |
| 5 Dec 2025, 11:56 | 97.6 | 97.6% |
| 18 Nov 2025, 10:06 | 96.9 | 96.9% |
| 5 Nov 2025, 14:28 | 90.1 | 90.1% |
| 6 Oct 2025, 13:32 | 94.3 | 94.3% |
| 22 Sep 2025, 11:47 | 98.5 | 98.5% |
| 22 Aug 2025, 13:50 | 97.8 | 97.8% |
| 22 Jul 2025, 12:09 | 98.2 | 98.2% |
| 24 Jun 2025, 09:56 | 95 | 95% |
| 21 Mar 2025, 13:39 | 107.5 | 107.5% |
| 20 Feb 2025, 11:05 | 89.6 | 89.6% |
| 24 Jan 2025, 12:16 | 100.3 | 100.3% |
| 12 Dec 2024, 13:14 | 108.8 | 108.8% |
| 19 Nov 2024, 14:25 | 92.8 | 92.8% |
| 17 Oct 2024, 14:09 | 99 | 99% |
| 24 Sep 2024, 10:58 | 95.8 | 95.8% |
| 21 Aug 2024, 13:51 | 100.9 | 100.9% |
| 25 Jul 2024, 12:13 | 99.1 | 99.1% |
Dissolved oxygen
as O2 · code 9924 · mg/l
12 mg/l
Sampled 12 May 2026, 5 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 15:44 | 12 | 12 mg/l |
| 23 Apr 2026, 10:18 | 12.1 | 12.1 mg/l |
| 10 Apr 2026, 12:53 | 12.2 | 12.2 mg/l |
| 17 Mar 2026, 14:06 | 10.7 | 10.7 mg/l |
| 4 Mar 2026, 14:56 | 11.3 | 11.3 mg/l |
| 20 Feb 2026, 10:56 | 11.9 | 11.9 mg/l |
| 4 Feb 2026, 10:32 | 12.1 | 12.1 mg/l |
| 26 Jan 2026, 13:51 | 11.6 | 11.6 mg/l |
| 13 Jan 2026, 10:23 | 11.9 | 11.9 mg/l |
| 17 Dec 2025, 10:52 | 11.6 | 11.6 mg/l |
| 5 Dec 2025, 11:56 | 11.7 | 11.7 mg/l |
| 18 Nov 2025, 10:06 | 11.4 | 11.4 mg/l |
| 5 Nov 2025, 14:28 | 9.47 | 9.47 mg/l |
| 6 Oct 2025, 13:32 | 9.91 | 9.91 mg/l |
| 22 Sep 2025, 11:47 | 11.1 | 11.1 mg/l |
| 22 Aug 2025, 13:50 | 10.1 | 10.1 mg/l |
| 22 Jul 2025, 12:09 | 9.79 | 9.79 mg/l |
| 24 Jun 2025, 09:56 | 9.72 | 9.72 mg/l |
| 21 Mar 2025, 13:39 | 12 | 12 mg/l |
| 20 Feb 2025, 11:05 | 10.6 | 10.6 mg/l |
| 24 Jan 2025, 12:16 | 12.4 | 12.4 mg/l |
| 12 Dec 2024, 13:14 | 12.8 | 12.8 mg/l |
| 19 Nov 2024, 14:25 | 11.7 | 11.7 mg/l |
| 17 Oct 2024, 14:09 | 10.6 | 10.6 mg/l |
| 24 Sep 2024, 10:58 | 10.2 | 10.2 mg/l |
| 21 Aug 2024, 13:51 | 10.4 | 10.4 mg/l |
| 25 Jul 2024, 12:13 | 9.76 | 9.76 mg/l |
Water temperature
code 0076 · °C
12 °C
Sampled 12 May 2026, 5 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 15:44 | 12 | 12 °C |
| 23 Apr 2026, 10:18 | 7.9 | 7.9 °C |
| 10 Apr 2026, 12:53 | 9.9 | 9.9 °C |
| 17 Mar 2026, 14:06 | 11.8 | 11.8 °C |
| 4 Mar 2026, 14:56 | 9.3 | 9.3 °C |
| 20 Feb 2026, 10:56 | 7.3 | 7.3 °C |
| 4 Feb 2026, 10:32 | 6.8 | 6.8 °C |
| 26 Jan 2026, 13:51 | 7.1 | 7.1 °C |
| 13 Jan 2026, 10:23 | 6.4 | 6.4 °C |
| 17 Dec 2025, 10:52 | 8 | 8 °C |
| 5 Dec 2025, 11:56 | 7.3 | 7.3 °C |
| 18 Nov 2025, 10:06 | 8.1 | 8.1 °C |
| 5 Nov 2025, 14:28 | 13 | 13 °C |
| 6 Oct 2025, 13:32 | 13 | 13 °C |
| 22 Sep 2025, 11:47 | 9.9 | 9.9 °C |
| 22 Aug 2025, 13:50 | 14 | 14 °C |
| 22 Jul 2025, 12:09 | 15.4 | 15.4 °C |
| 24 Jun 2025, 09:56 | 14.2 | 14.2 °C |
| 21 Mar 2025, 13:39 | 10.3 | 10.3 °C |
| 20 Feb 2025, 11:05 | 8 | 8 °C |
| 24 Jan 2025, 12:16 | 6.3 | 6.3 °C |
| 12 Dec 2024, 13:14 | 8.1 | 8.1 °C |
| 19 Nov 2024, 14:25 | 5.3 | 5.3 °C |
| 17 Oct 2024, 14:09 | 12.2 | 12.2 °C |
| 24 Sep 2024, 10:58 | 12.3 | 12.3 °C |
| 21 Aug 2024, 13:51 | 14 | 14 °C |
| 25 Jul 2024, 12:13 | 16 | 16 °C |
pH
code 0061
8.52
Sampled 12 May 2026, 5 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 15:44 | 8.52 | 8.52 |
| 23 Apr 2026, 10:18 | 8.44 | 8.44 |
| 10 Apr 2026, 12:53 | 8.44 | 8.44 |
| 17 Mar 2026, 14:06 | 8.24 | 8.24 |
| 4 Mar 2026, 14:56 | 8.3 | 8.3 |
| 20 Feb 2026, 10:56 | 8.24 | 8.24 |
| 4 Feb 2026, 10:32 | 8.16 | 8.16 |
| 26 Jan 2026, 13:51 | 8.06 | 8.06 |
| 13 Jan 2026, 10:23 | 8.18 | 8.18 |
| 17 Dec 2025, 10:52 | 8.15 | 8.15 |
| 5 Dec 2025, 11:56 | 8.3 | 8.3 |
| 18 Nov 2025, 10:06 | 8.29 | 8.29 |
| 5 Nov 2025, 14:28 | 8.05 | 8.05 |
| 6 Oct 2025, 13:32 | 8.22 | 8.22 |
| 22 Sep 2025, 11:47 | 7.38 | 7.38 |
| 22 Aug 2025, 13:50 | 8.34 | 8.34 |
| 22 Jul 2025, 12:09 | 8.17 | 8.17 |
| 24 Jun 2025, 09:56 | 8.09 | 8.09 |
| 21 Mar 2025, 13:39 | 8.33 | 8.33 |
| 20 Feb 2025, 11:05 | 7.89 | 7.89 |
| 24 Jan 2025, 12:16 | 8.42 | 8.42 |
| 12 Dec 2024, 13:14 | 8.04 | 8.04 |
| 19 Nov 2024, 14:25 | 8.09 | 8.09 |
| 17 Oct 2024, 14:09 | 7.99 | 7.99 |
| 24 Sep 2024, 10:58 | 8.23 | 8.23 |
| 21 Aug 2024, 13:51 | 8.37 | 8.37 |
| 25 Jul 2024, 12:13 | 8.28 | 8.28 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 12 May 2026, 5 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 15:44 | <0.03 | below 0.03 mg/l (not detected above this) |
| 23 Apr 2026, 10:18 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Apr 2026, 12:53 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Mar 2026, 14:06 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Mar 2026, 14:56 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Feb 2026, 10:56 | 0.1 | 0.1 mg/l |
| 4 Feb 2026, 10:32 | 0.043 | 0.043 mg/l |
| 26 Jan 2026, 13:51 | 0.058 | 0.058 mg/l |
| 13 Jan 2026, 10:23 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Dec 2025, 10:52 | 0.031 | 0.031 mg/l |
| 5 Dec 2025, 11:56 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Nov 2025, 10:06 | 0.033 | 0.033 mg/l |
| 5 Nov 2025, 14:28 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Oct 2025, 13:32 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Sep 2025, 11:47 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Aug 2025, 13:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Jul 2025, 12:09 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Jun 2025, 09:56 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Mar 2025, 13:39 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Feb 2025, 11:05 | 0.13 | 0.13 mg/l |
| 24 Jan 2025, 12:16 | 0.053 | 0.053 mg/l |
| 12 Dec 2024, 13:14 | 0.035 | 0.035 mg/l |
| 19 Nov 2024, 14:25 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Oct 2024, 14:09 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Sep 2024, 10:58 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Aug 2024, 13:51 | <0.03 | below 0.03 mg/l (not detected above this) |
| 25 Jul 2024, 12:13 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
4 mg/l
Sampled 12 May 2026, 5 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 15:44 | 4 | 4 mg/l |
| 23 Apr 2026, 10:18 | 4.1 | 4.1 mg/l |
| 10 Apr 2026, 12:53 | 4.49 | 4.49 mg/l |
| 17 Mar 2026, 14:06 | 4.69 | 4.69 mg/l |
| 4 Mar 2026, 14:56 | 5.29 | 5.29 mg/l |
| 20 Feb 2026, 10:56 | 3.63 | 3.63 mg/l |
| 4 Feb 2026, 10:32 | 0.911 | 0.911 mg/l |
| 26 Jan 2026, 13:51 | 4.76 | 4.76 mg/l |
| 13 Jan 2026, 10:23 | 3.98 | 3.98 mg/l |
| 17 Dec 2025, 10:52 | 3.86 | 3.86 mg/l |
| 5 Dec 2025, 11:56 | 3.57 | 3.57 mg/l |
| 18 Nov 2025, 10:06 | 4.68 | 4.68 mg/l |
| 5 Nov 2025, 14:28 | 1.99 | 1.99 mg/l |
| 6 Oct 2025, 13:32 | 4.29 | 4.29 mg/l |
| 22 Sep 2025, 11:47 | 5.49 | 5.49 mg/l |
| 22 Aug 2025, 13:50 | 2.9 | 2.9 mg/l |
| 22 Jul 2025, 12:09 | 3.9 | 3.9 mg/l |
| 24 Jun 2025, 09:56 | 3.39 | 3.39 mg/l |
| 21 Mar 2025, 13:39 | 4.89 | 4.89 mg/l |
| 20 Feb 2025, 11:05 | 2.55 | 2.55 mg/l |
| 24 Jan 2025, 12:16 | 3.07 | 3.07 mg/l |
| 12 Dec 2024, 13:14 | 3.88 | 3.88 mg/l |
| 19 Nov 2024, 14:25 | 3.09 | 3.09 mg/l |
| 17 Oct 2024, 14:09 | 2.99 | 2.99 mg/l |
| 24 Sep 2024, 10:58 | 3.3 | 3.3 mg/l |
| 21 Aug 2024, 13:51 | 3.2 | 3.2 mg/l |
| 25 Jul 2024, 12:13 | 3.8 | 3.8 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.038 mg/l
Sampled 12 May 2026, 5 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 15:44 | 0.038 | 0.038 mg/l |
| 23 Apr 2026, 10:18 | 0.037 | 0.037 mg/l |
| 10 Apr 2026, 12:53 | 0.032 | 0.032 mg/l |
| 17 Mar 2026, 14:06 | 0.033 | 0.033 mg/l |
| 4 Mar 2026, 14:56 | 0.034 | 0.034 mg/l |
| 20 Feb 2026, 10:56 | 0.029 | 0.029 mg/l |
| 4 Feb 2026, 10:32 | 0.06 | 0.06 mg/l |
| 26 Jan 2026, 13:51 | 0.029 | 0.029 mg/l |
| 13 Jan 2026, 10:23 | 0.034 | 0.034 mg/l |
| 17 Dec 2025, 10:52 | 0.03 | 0.03 mg/l |
| 5 Dec 2025, 11:56 | 0.029 | 0.029 mg/l |
| 18 Nov 2025, 10:06 | 0.036 | 0.036 mg/l |
| 5 Nov 2025, 14:28 | 0.045 | 0.045 mg/l |
| 6 Oct 2025, 13:32 | 0.05 | 0.05 mg/l |
| 22 Sep 2025, 11:47 | 0.052 | 0.052 mg/l |
| 22 Aug 2025, 13:50 | 0.097 | 0.097 mg/l |
| 22 Jul 2025, 12:09 | 0.071 | 0.071 mg/l |
| 24 Jun 2025, 09:56 | 0.072 | 0.072 mg/l |
| 21 Mar 2025, 13:39 | 0.045 | 0.045 mg/l |
| 20 Feb 2025, 11:05 | 0.012 | 0.012 mg/l |
| 24 Jan 2025, 12:16 | 0.039 | 0.039 mg/l |
| 12 Dec 2024, 13:14 | 0.034 | 0.034 mg/l |
| 19 Nov 2024, 14:25 | 0.055 | 0.055 mg/l |
| 17 Oct 2024, 14:09 | 0.051 | 0.051 mg/l |
| 24 Sep 2024, 10:58 | 0.058 | 0.058 mg/l |
| 21 Aug 2024, 13:51 | 0.074 | 0.074 mg/l |
| 25 Jul 2024, 12:13 | 0.069 | 0.069 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
995 µS/cm
Sampled 12 May 2026, 5 months ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 12 May 2026, 15:44 | 995 | 995 µS/cm |
| 23 Apr 2026, 10:18 | 1100 | 1100 µS/cm |
| 10 Apr 2026, 12:53 | 1054 | 1054 µS/cm |
| 17 Mar 2026, 14:06 | 950 | 950 µS/cm |
| 4 Mar 2026, 14:56 | 1087 | 1087 µS/cm |
| 20 Feb 2026, 10:56 | 889 | 889 µS/cm |
| 4 Feb 2026, 10:32 | 688 | 688 µS/cm |
| 26 Jan 2026, 13:51 | 687 | 687 µS/cm |
| 13 Jan 2026, 10:23 | 883 | 883 µS/cm |
| 17 Dec 2025, 10:52 | 663 | 663 µS/cm |
| 5 Dec 2025, 11:56 | 698 | 698 µS/cm |
| 18 Nov 2025, 10:06 | 757 | 757 µS/cm |
| 5 Nov 2025, 14:28 | 551 | 551 µS/cm |
| 6 Oct 2025, 13:32 | 815 | 815 µS/cm |
| 22 Sep 2025, 11:47 | 799 | 799 µS/cm |
| 22 Aug 2025, 13:50 | 987 | 987 µS/cm |
| 22 Jul 2025, 12:09 | 914 | 914 µS/cm |
| 24 Jun 2025, 09:56 | 908 | 908 µS/cm |
| 21 Mar 2025, 13:39 | 1079 | 1079 µS/cm |
| 20 Feb 2025, 11:05 | 2130 | 2130 µS/cm |
| 24 Jan 2025, 12:16 | 720 | 720 µS/cm |
| 12 Dec 2024, 13:14 | 697 | 697 µS/cm |
| 19 Nov 2024, 14:25 | 1375 | 1375 µS/cm |
| 17 Oct 2024, 14:09 | 504 | 504 µS/cm |
| 24 Sep 2024, 10:58 | 755 | 755 µS/cm |
| 21 Aug 2024, 13:51 | 949 | 949 µS/cm |
| 25 Jul 2024, 12:13 | 938 | 938 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 | 27 | Jul 2024 – May 2026 | 111.9% 12 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 27 | Jul 2024 – May 2026 | 12 mg/l 12 May 2026 |
| Temperature of Water 0076 | River water | 27 | Jul 2024 – May 2026 | 12 °C 12 May 2026 |
| pH 0061 | River water | 27 | Jul 2024 – May 2026 | 8.52 12 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 27 | Jul 2024 – May 2026 | below 0.03 mg/l 12 May 2026 |
| Nitrate as N 0117 | River water | 27 | Jul 2024 – May 2026 | 4 mg/l 12 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 27 | Jul 2024 – May 2026 | 0.038 mg/l 12 May 2026 |
| Conductivity at 25 C 0077 | River water | 27 | Jul 2024 – May 2026 | 995 µS/cm 12 May 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 27 | Jul 2024 – May 2026 | 250 mg/l 12 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 27 | Jul 2024 – May 2026 | below 0.00063 mg/l 12 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 27 | Jul 2024 – May 2026 | 1.3 mg/l 12 May 2026 |
| Nitrite as N 0118 | River water | 27 | Jul 2024 – May 2026 | 0.0049 mg/l 12 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 27 | Jul 2024 – May 2026 | 4 mg/l 12 May 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.