River Thet Crowshall Road Bridge Attleborough
EA name: R.THET CROWSHALL RD.BR.ATTLEBOROUGH
Environment Agency sampling point AN-44M01 · 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
- 28 May 2026, 14:034 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
- 30 since 17 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 603700, 295500As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Thet
- River, by the map
- River ThetPlaced on the river its name gives, 8 m from the line.
- Next gauge downstream
- Redbridge On the River Thet · 6.5 km along the river
- Why it was sampled
- Monitoring (national agency policy) (30 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
55.8%
Sampled 28 May 2026, 4 months ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 May 2026, 14:03 | 55.8 | 55.8% |
| 6 May 2026, 10:58 | 67.6 | 67.6% |
| 14 Apr 2026, 10:08 | 74 | 74% |
| 19 Mar 2026, 11:36 | 104.7 | 104.7% |
| 2 Mar 2026, 13:40 | 106.6 | 106.6% |
| 17 Feb 2026, 08:56 | 91.4 | 91.4% |
| 9 Feb 2026, 08:42 | 89.8 | 89.8% |
| 27 Jan 2026, 11:23 | 91.8 | 91.8% |
| 7 Jan 2026, 12:12 | 81 | 81% |
| 18 Dec 2025, 09:48 | 79.3 | 79.3% |
| 4 Dec 2025, 13:11 | 79.5 | 79.5% |
| 20 Nov 2025, 12:16 | 71.9 | 71.9% |
| 6 Mar 2025, 12:42 | 96.9 | 96.9% |
| 13 Feb 2025, 10:25 | 90.8 | 90.8% |
| 28 Jan 2025, 08:57 | 92.2 | 92.2% |
| 6 Dec 2024, 11:04 | 84.3 | 84.3% |
| 21 Nov 2024, 13:52 | 86.5 | 86.5% |
| 25 Oct 2024, 13:32 | 72.1 | 72.1% |
| 30 Sep 2024, 12:41 | 71.1 | 71.1% |
| 21 Aug 2024, 10:27 | 83 | 83% |
| 19 Jul 2024, 11:15 | 84.9 | 84.9% |
| 18 Jun 2024, 11:36 | 88.1 | 88.1% |
| 13 May 2024, 09:10 | 88.3 | 88.3% |
| 29 Apr 2024, 11:01 | 99.5 | 99.5% |
| 22 Mar 2024, 10:34 | 109.3 | 109.3% |
| 19 Feb 2024, 11:45 | 80.3 | 80.3% |
| 16 Jan 2024, 14:27 | 86.8 | 86.8% |
| 12 Dec 2023, 10:49 | 81.8 | 81.8% |
| 29 Nov 2023, 09:27 | 87.9 | 87.9% |
| 17 Oct 2023, 09:18 | 77.2 | 77.2% |
Dissolved oxygen
as O2 · code 9924 · mg/l
5.27 mg/l
Sampled 28 May 2026, 4 months ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 May 2026, 14:03 | 5.27 | 5.27 mg/l |
| 6 May 2026, 10:58 | 7.51 | 7.51 mg/l |
| 14 Apr 2026, 10:08 | 8.79 | 8.79 mg/l |
| 19 Mar 2026, 11:36 | 12.4 | 12.4 mg/l |
| 2 Mar 2026, 13:40 | 12 | 12 mg/l |
| 17 Feb 2026, 08:56 | 11.8 | 11.8 mg/l |
| 9 Feb 2026, 08:42 | 10.9 | 10.9 mg/l |
| 27 Jan 2026, 11:23 | 11.5 | 11.5 mg/l |
| 7 Jan 2026, 12:12 | 10.7 | 10.7 mg/l |
| 18 Dec 2025, 09:48 | 9.15 | 9.15 mg/l |
| 4 Dec 2025, 13:11 | 9.61 | 9.61 mg/l |
| 20 Nov 2025, 12:16 | 9.19 | 9.19 mg/l |
| 6 Mar 2025, 12:42 | 11.6 | 11.6 mg/l |
| 13 Feb 2025, 10:25 | 11.6 | 11.6 mg/l |
| 28 Jan 2025, 08:57 | 11.4 | 11.4 mg/l |
| 6 Dec 2024, 11:04 | 10.1 | 10.1 mg/l |
| 21 Nov 2024, 13:52 | 11.4 | 11.4 mg/l |
| 25 Oct 2024, 13:32 | 7.6 | 7.6 mg/l |
| 30 Sep 2024, 12:41 | 7.54 | 7.54 mg/l |
| 21 Aug 2024, 10:27 | 8.46 | 8.46 mg/l |
| 19 Jul 2024, 11:15 | 8.12 | 8.12 mg/l |
| 18 Jun 2024, 11:36 | 8.92 | 8.92 mg/l |
| 13 May 2024, 09:10 | 9.14 | 9.14 mg/l |
| 29 Apr 2024, 11:01 | 11.5 | 11.5 mg/l |
| 22 Mar 2024, 10:34 | 12.1 | 12.1 mg/l |
| 19 Feb 2024, 11:45 | 9.22 | 9.22 mg/l |
| 16 Jan 2024, 14:27 | 11.5 | 11.5 mg/l |
| 12 Dec 2023, 10:49 | 9.65 | 9.65 mg/l |
| 29 Nov 2023, 09:27 | 11.1 | 11.1 mg/l |
| 17 Oct 2023, 09:18 | 8.7 | 8.7 mg/l |
Water temperature
code 0076 · °C
18 °C
Sampled 28 May 2026, 4 months ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 May 2026, 14:03 | 18 | 18 °C |
| 6 May 2026, 10:58 | 10.6 | 10.6 °C |
| 14 Apr 2026, 10:08 | 7.8 | 7.8 °C |
| 19 Mar 2026, 11:36 | 8.1 | 8.1 °C |
| 2 Mar 2026, 13:40 | 10.1 | 10.1 °C |
| 17 Feb 2026, 08:56 | 4.5 | 4.5 °C |
| 9 Feb 2026, 08:42 | 7.1 | 7.1 °C |
| 27 Jan 2026, 11:23 | 5.6 | 5.6 °C |
| 7 Jan 2026, 12:12 | 3.5 | 3.5 °C |
| 18 Dec 2025, 09:48 | 9 | 9 °C |
| 4 Dec 2025, 13:11 | 7.1 | 7.1 °C |
| 20 Nov 2025, 12:16 | 4.9 | 4.9 °C |
| 6 Mar 2025, 12:42 | 7.6 | 7.6 °C |
| 13 Feb 2025, 10:25 | 4.8 | 4.8 °C |
| 28 Jan 2025, 08:57 | 6.1 | 6.1 °C |
| 6 Dec 2024, 11:04 | 7.4 | 7.4 °C |
| 21 Nov 2024, 13:52 | 3.8 | 3.8 °C |
| 25 Oct 2024, 13:32 | 12.9 | 12.9 °C |
| 30 Sep 2024, 12:41 | 12.6 | 12.6 °C |
| 21 Aug 2024, 10:27 | 14.4 | 14.4 °C |
| 19 Jul 2024, 11:15 | 17.4 | 17.4 °C |
| 18 Jun 2024, 11:36 | 14.7 | 14.7 °C |
| 13 May 2024, 09:10 | 13.7 | 13.7 °C |
| 29 Apr 2024, 11:01 | 9.1 | 9.1 °C |
| 22 Mar 2024, 10:34 | 10.6 | 10.6 °C |
| 19 Feb 2024, 11:45 | 9.2 | 9.2 °C |
| 16 Jan 2024, 14:27 | 3.5 | 3.5 °C |
| 12 Dec 2023, 10:49 | 8.1 | 8.1 °C |
| 29 Nov 2023, 09:27 | 5.4 | 5.4 °C |
| 17 Oct 2023, 09:18 | 10 | 10 °C |
pH
code 0061
7.77
Sampled 28 May 2026, 4 months ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 May 2026, 14:03 | 7.77 | 7.77 |
| 6 May 2026, 10:58 | 7.87 | 7.87 |
| 14 Apr 2026, 10:08 | 7.78 | 7.78 |
| 19 Mar 2026, 11:36 | 8.31 | 8.31 |
| 2 Mar 2026, 13:40 | 8.33 | 8.33 |
| 17 Feb 2026, 08:56 | 8.04 | 8.04 |
| 9 Feb 2026, 08:42 | 7.93 | 7.93 |
| 27 Jan 2026, 11:23 | 8.07 | 8.07 |
| 7 Jan 2026, 12:12 | 7.68 | 7.68 |
| 18 Dec 2025, 09:48 | 7.86 | 7.86 |
| 4 Dec 2025, 13:11 | 7.69 | 7.69 |
| 20 Nov 2025, 12:16 | 7.56 | 7.56 |
| 6 Mar 2025, 12:42 | 8.02 | 8.02 |
| 13 Feb 2025, 10:25 | 8.13 | 8.13 |
| 28 Jan 2025, 08:57 | 8.21 | 8.21 |
| 6 Dec 2024, 11:04 | 7.77 | 7.77 |
| 21 Nov 2024, 13:52 | 7.99 | 7.99 |
| 25 Oct 2024, 13:32 | 7.89 | 7.89 |
| 30 Sep 2024, 12:41 | 7.83 | 7.83 |
| 21 Aug 2024, 10:27 | 8.01 | 8.01 |
| 19 Jul 2024, 11:15 | 8.02 | 8.02 |
| 18 Jun 2024, 11:36 | 7.99 | 7.99 |
| 13 May 2024, 09:10 | 8.08 | 8.08 |
| 29 Apr 2024, 11:01 | 7.47 | 7.47 |
| 22 Mar 2024, 10:34 | 8.06 | 8.06 |
| 19 Feb 2024, 11:45 | 7.77 | 7.77 |
| 16 Jan 2024, 14:27 | 7.97 | 7.97 |
| 12 Dec 2023, 10:49 | 7.91 | 7.91 |
| 29 Nov 2023, 09:27 | 7.9 | 7.9 |
| 17 Oct 2023, 09:18 | 7.74 | 7.74 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.12 mg/l
Sampled 28 May 2026, 4 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 May 2026, 14:03 | 0.12 | 0.12 mg/l |
| 6 May 2026, 10:58 | 0.13 | 0.13 mg/l |
| 14 Apr 2026, 10:08 | 0.12 | 0.12 mg/l |
| 19 Mar 2026, 11:36 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Mar 2026, 13:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Feb 2026, 08:56 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Feb 2026, 08:42 | 0.042 | 0.042 mg/l |
| 27 Jan 2026, 11:23 | 0.079 | 0.079 mg/l |
| 7 Jan 2026, 12:12 | 0.36 | 0.36 mg/l |
| 18 Dec 2025, 09:48 | 0.038 | 0.038 mg/l |
| 4 Dec 2025, 13:11 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Nov 2025, 12:16 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Mar 2025, 12:42 | 0.067 | 0.067 mg/l |
| 13 Feb 2025, 10:25 | <0.03 | below 0.03 mg/l (not detected above this) |
| 28 Jan 2025, 08:57 | 0.042 | 0.042 mg/l |
| 21 Nov 2024, 13:52 | 0.033 | 0.033 mg/l |
| 25 Oct 2024, 13:32 | <0.03 | below 0.03 mg/l (not detected above this) |
| 30 Sep 2024, 12:41 | 0.14 | 0.14 mg/l |
| 21 Aug 2024, 10:27 | 0.064 | 0.064 mg/l |
| 19 Jul 2024, 11:15 | 0.046 | 0.046 mg/l |
| 18 Jun 2024, 11:36 | 0.046 | 0.046 mg/l |
| 13 May 2024, 09:10 | 0.048 | 0.048 mg/l |
| 29 Apr 2024, 11:01 | 0.077 | 0.077 mg/l |
| 22 Mar 2024, 10:34 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Feb 2024, 11:45 | 0.049 | 0.049 mg/l |
| 16 Jan 2024, 14:27 | 0.067 | 0.067 mg/l |
| 12 Dec 2023, 10:49 | 0.065 | 0.065 mg/l |
| 29 Nov 2023, 09:27 | 0.042 | 0.042 mg/l |
| 17 Oct 2023, 09:18 | 0.045 | 0.045 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.635 mg/l
Sampled 28 May 2026, 4 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 May 2026, 14:03 | 0.635 | 0.635 mg/l |
| 6 May 2026, 10:58 | 1.13 | 1.13 mg/l |
| 14 Apr 2026, 10:08 | 2.15 | 2.15 mg/l |
| 19 Mar 2026, 11:36 | 4.88 | 4.88 mg/l |
| 2 Mar 2026, 13:40 | 9.37 | 9.37 mg/l |
| 17 Feb 2026, 08:56 | 11 | 11 mg/l |
| 9 Feb 2026, 08:42 | 13 | 13 mg/l |
| 27 Jan 2026, 11:23 | 12.9 | 12.9 mg/l |
| 7 Jan 2026, 12:12 | 4.73 | 4.73 mg/l |
| 18 Dec 2025, 09:48 | 11.9 | 11.9 mg/l |
| 4 Dec 2025, 13:11 | 16.9 | 16.9 mg/l |
| 20 Nov 2025, 12:16 | 7.43 | 7.43 mg/l |
| 6 Mar 2025, 12:42 | 8.97 | 8.97 mg/l |
| 13 Feb 2025, 10:25 | 7.98 | 7.98 mg/l |
| 28 Jan 2025, 08:57 | 12 | 12 mg/l |
| 21 Nov 2024, 13:52 | 8.66 | 8.66 mg/l |
| 25 Oct 2024, 13:32 | 4.66 | 4.66 mg/l |
| 30 Sep 2024, 12:41 | 3.16 | 3.16 mg/l |
| 21 Aug 2024, 10:27 | 1.66 | 1.66 mg/l |
| 19 Jul 2024, 11:15 | 2.67 | 2.67 mg/l |
| 18 Jun 2024, 11:36 | 3.66 | 3.66 mg/l |
| 13 May 2024, 09:10 | 2.95 | 2.95 mg/l |
| 29 Apr 2024, 11:01 | 9.83 | 9.83 mg/l |
| 22 Mar 2024, 10:34 | 4.78 | 4.78 mg/l |
| 19 Feb 2024, 11:45 | 5.28 | 5.28 mg/l |
| 16 Jan 2024, 14:27 | 7.77 | 7.77 mg/l |
| 12 Dec 2023, 10:49 | 8.55 | 8.55 mg/l |
| 29 Nov 2023, 09:27 | 10.9 | 10.9 mg/l |
| 17 Oct 2023, 09:18 | 10.9 | 10.9 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.17 mg/l
Sampled 28 May 2026, 4 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 May 2026, 14:03 | 0.17 | 0.17 mg/l |
| 6 May 2026, 10:58 | 0.092 | 0.092 mg/l |
| 14 Apr 2026, 10:08 | 0.051 | 0.051 mg/l |
| 19 Mar 2026, 11:36 | 0.037 | 0.037 mg/l |
| 2 Mar 2026, 13:40 | 0.048 | 0.048 mg/l |
| 17 Feb 2026, 08:56 | 0.041 | 0.041 mg/l |
| 9 Feb 2026, 08:42 | 0.042 | 0.042 mg/l |
| 27 Jan 2026, 11:23 | 0.047 | 0.047 mg/l |
| 7 Jan 2026, 12:12 | 0.041 | 0.041 mg/l |
| 18 Dec 2025, 09:48 | 0.054 | 0.054 mg/l |
| 4 Dec 2025, 13:11 | 0.042 | 0.042 mg/l |
| 20 Nov 2025, 12:16 | 0.06 | 0.06 mg/l |
| 6 Mar 2025, 12:42 | 0.03 | 0.03 mg/l |
| 13 Feb 2025, 10:25 | 0.046 | 0.046 mg/l |
| 28 Jan 2025, 08:57 | 0.047 | 0.047 mg/l |
| 21 Nov 2024, 13:52 | 0.054 | 0.054 mg/l |
| 25 Oct 2024, 13:32 | 0.056 | 0.056 mg/l |
| 30 Sep 2024, 12:41 | 0.13 | 0.13 mg/l |
| 21 Aug 2024, 10:27 | 0.15 | 0.15 mg/l |
| 19 Jul 2024, 11:15 | 0.082 | 0.082 mg/l |
| 18 Jun 2024, 11:36 | 0.07 | 0.07 mg/l |
| 13 May 2024, 09:10 | 0.057 | 0.057 mg/l |
| 29 Apr 2024, 11:01 | 0.054 | 0.054 mg/l |
| 22 Mar 2024, 10:34 | 0.039 | 0.039 mg/l |
| 19 Feb 2024, 11:45 | 0.077 | 0.077 mg/l |
| 16 Jan 2024, 14:27 | 0.056 | 0.056 mg/l |
| 12 Dec 2023, 10:49 | 0.054 | 0.054 mg/l |
| 29 Nov 2023, 09:27 | 0.054 | 0.054 mg/l |
| 17 Oct 2023, 09:18 | 0.054 | 0.054 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
954 µS/cm
Sampled 28 May 2026, 4 months ago · 30 results banked
Every result (30)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 May 2026, 14:03 | 954 | 954 µS/cm |
| 6 May 2026, 10:58 | 975 | 975 µS/cm |
| 14 Apr 2026, 10:08 | 1101 | 1101 µS/cm |
| 19 Mar 2026, 11:36 | 1083 | 1083 µS/cm |
| 2 Mar 2026, 13:40 | 860 | 860 µS/cm |
| 17 Feb 2026, 08:56 | 832 | 832 µS/cm |
| 9 Feb 2026, 08:42 | 842 | 842 µS/cm |
| 27 Jan 2026, 11:23 | 972 | 972 µS/cm |
| 7 Jan 2026, 12:12 | 3197 | 3197 µS/cm |
| 18 Dec 2025, 09:48 | 981 | 981 µS/cm |
| 4 Dec 2025, 13:11 | 984 | 984 µS/cm |
| 20 Nov 2025, 12:16 | 1064 | 1064 µS/cm |
| 6 Mar 2025, 12:42 | 919 | 919 µS/cm |
| 13 Feb 2025, 10:25 | 940 | 940 µS/cm |
| 28 Jan 2025, 08:57 | 846 | 846 µS/cm |
| 6 Dec 2024, 11:04 | 745 | 745 µS/cm |
| 21 Nov 2024, 13:52 | 870 | 870 µS/cm |
| 25 Oct 2024, 13:32 | 909 | 909 µS/cm |
| 30 Sep 2024, 12:41 | 759 | 759 µS/cm |
| 21 Aug 2024, 10:27 | 878 | 878 µS/cm |
| 19 Jul 2024, 11:15 | 909 | 909 µS/cm |
| 18 Jun 2024, 11:36 | 911 | 911 µS/cm |
| 13 May 2024, 09:10 | 900 | 900 µS/cm |
| 29 Apr 2024, 11:01 | 823 | 823 µS/cm |
| 22 Mar 2024, 10:34 | 893 | 893 µS/cm |
| 19 Feb 2024, 11:45 | 588 | 588 µS/cm |
| 16 Jan 2024, 14:27 | 918 | 918 µS/cm |
| 12 Dec 2023, 10:49 | 785 | 785 µS/cm |
| 29 Nov 2023, 09:27 | 874 | 874 µS/cm |
| 17 Oct 2023, 09:18 | 948 | 948 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 | 30 | Oct 2023 – May 2026 | 55.8% 28 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 30 | Oct 2023 – May 2026 | 5.27 mg/l 28 May 2026 |
| Temperature of Water 0076 | River water | 30 | Oct 2023 – May 2026 | 18 °C 28 May 2026 |
| pH 0061 | River water | 30 | Oct 2023 – May 2026 | 7.77 28 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 29 | Oct 2023 – May 2026 | 0.12 mg/l 28 May 2026 |
| Nitrate as N 0117 | River water | 29 | Oct 2023 – May 2026 | 0.635 mg/l 28 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 29 | Oct 2023 – May 2026 | 0.17 mg/l 28 May 2026 |
| Conductivity at 25 C 0077 | River water | 30 | Oct 2023 – May 2026 | 954 µS/cm 28 May 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 29 | Oct 2023 – May 2026 | 320 mg/l 28 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 29 | Oct 2023 – May 2026 | 0.00234 mg/l 28 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 25 | Feb 2024 – May 2026 | 2 mg/l 28 May 2026 |
| Nitrite as N 0118 | River water | 29 | Oct 2023 – May 2026 | 0.075 mg/l 28 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 29 | Oct 2023 – May 2026 | 0.71 mg/l 28 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.