Little Betley Bridge, Chess Stream
EA name: LITTLE BETLEY BRIDGE, CHESS STREAM
Environment Agency sampling point SO-F0017633 · 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
- 11 May 2026, 13:075 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
- 24 since 28 Jun 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 520050, 117451As published, to the nearest 1 m. Open in a map
- River, by its own name
- Little Betley Bridge
- River, by the map
- Not placedTwo watercourses within reach (1 m and 74 m) and no name to choose by. The river map cannot say which watercourse this is.
- Next gauge downstream
- Not known
- Why it was sampled
- Monitoring (national agency policy) (14 samples)
Environmental monitoring statutory (EU directives) (10 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
100.2%
Sampled 11 May 2026, 5 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 May 2026, 13:07 | 100.2 | 100.2% |
| 21 Apr 2026, 11:42 | 96.3 | 96.3% |
| 24 Mar 2026, 13:20 | 100.3 | 100.3% |
| 27 Feb 2026, 14:35 | 92.7 | 92.7% |
| 9 Feb 2026, 13:36 | 75.9 | 75.9% |
| 5 Dec 2025, 14:22 | 82.9 | 82.9% |
| 7 Nov 2025, 11:41 | 76.5 | 76.5% |
| 20 Oct 2025, 13:49 | 70.9 | 70.9% |
| 22 Sep 2025, 12:16 | 65.8 | 65.8% |
| 27 Aug 2025, 11:12 | 77.8 | 77.8% |
| 27 Jun 2025, 14:14 | 83.2 | 83.2% |
| 7 May 2025, 12:00 | 100.8 | 100.8% |
| 7 Apr 2025, 10:54 | 94.3 | 94.3% |
| 18 Mar 2025, 12:35 | 102.1 | 102.1% |
| 11 Feb 2025, 12:03 | 95.4 | 95.4% |
| 21 Jan 2025, 11:41 | 40.6 | 40.6% |
| 12 Dec 2024, 11:57 | 55.4 | 55.4% |
| 26 Nov 2024, 17:07 | 71.4 | 71.4% |
| 28 Oct 2024, 13:40 | 23.7 | 23.7% |
| 20 Sep 2024, 10:30 | 66 | 66% |
| 30 Aug 2024, 10:44 | 65.1 | 65.1% |
| 30 Aug 2024, 10:43 | 65.1 | 65.1% |
| 28 Jun 2024, 12:17 | 78.5 | 78.5% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10.8 mg/l
Sampled 11 May 2026, 5 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 May 2026, 13:07 | 10.8 | 10.8 mg/l |
| 21 Apr 2026, 11:42 | 10.7 | 10.7 mg/l |
| 24 Mar 2026, 13:20 | 11.2 | 11.2 mg/l |
| 27 Feb 2026, 14:35 | 10.2 | 10.2 mg/l |
| 9 Feb 2026, 13:36 | 8.74 | 8.74 mg/l |
| 5 Dec 2025, 14:22 | 10 | 10 mg/l |
| 7 Nov 2025, 11:41 | 7.93 | 7.93 mg/l |
| 20 Oct 2025, 13:49 | 7.3 | 7.3 mg/l |
| 22 Sep 2025, 12:16 | 6.95 | 6.95 mg/l |
| 27 Aug 2025, 11:12 | 7.55 | 7.55 mg/l |
| 27 Jun 2025, 14:14 | 7.64 | 7.64 mg/l |
| 7 May 2025, 12:00 | 10.8 | 10.8 mg/l |
| 7 Apr 2025, 10:54 | 10.3 | 10.3 mg/l |
| 18 Mar 2025, 12:35 | 12.3 | 12.3 mg/l |
| 11 Feb 2025, 12:03 | 12 | 12 mg/l |
| 21 Jan 2025, 11:41 | 5.27 | 5.27 mg/l |
| 12 Dec 2024, 11:57 | 6.75 | 6.75 mg/l |
| 26 Nov 2024, 17:07 | 8.24 | 8.24 mg/l |
| 28 Oct 2024, 13:40 | 2.55 | 2.55 mg/l |
| 20 Sep 2024, 10:30 | 6.51 | 6.51 mg/l |
| 30 Aug 2024, 10:44 | 6.52 | 6.52 mg/l |
| 30 Aug 2024, 10:43 | 6.52 | 6.52 mg/l |
| 28 Jun 2024, 12:17 | 7.29 | 7.29 mg/l |
Water temperature
code 0076 · °C
12 °C
Sampled 11 May 2026, 5 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 May 2026, 13:07 | 12 | 12 °C |
| 21 Apr 2026, 11:42 | 10.6 | 10.6 °C |
| 24 Mar 2026, 13:20 | 10.3 | 10.3 °C |
| 27 Feb 2026, 14:35 | 10.8 | 10.8 °C |
| 9 Feb 2026, 13:36 | 9.1 | 9.1 °C |
| 5 Dec 2025, 14:22 | 7.1 | 7.1 °C |
| 7 Nov 2025, 11:41 | 13.6 | 13.6 °C |
| 20 Oct 2025, 13:49 | 13.9 | 13.9 °C |
| 22 Sep 2025, 12:16 | 12.8 | 12.8 °C |
| 27 Aug 2025, 11:12 | 16.7 | 16.7 °C |
| 27 Jun 2025, 14:14 | 19.4 | 19.4 °C |
| 7 May 2025, 12:00 | 12.3 | 12.3 °C |
| 7 Apr 2025, 10:54 | 11.3 | 11.3 °C |
| 18 Mar 2025, 12:35 | 7.2 | 7.2 °C |
| 11 Feb 2025, 12:03 | 5.7 | 5.7 °C |
| 21 Jan 2025, 11:41 | 4.3 | 4.3 °C |
| 12 Dec 2024, 11:57 | 6.8 | 6.8 °C |
| 26 Nov 2024, 17:07 | 9 | 9 °C |
| 28 Oct 2024, 13:40 | 12 | 12 °C |
| 20 Sep 2024, 10:30 | 15.9 | 15.9 °C |
| 30 Aug 2024, 10:44 | 15.2 | 15.2 °C |
| 30 Aug 2024, 10:43 | 15.2 | 15.2 °C |
| 28 Jun 2024, 12:17 | 18.8 | 18.8 °C |
pH
code 0061
8.08
Sampled 11 May 2026, 5 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 May 2026, 13:07 | 8.08 | 8.08 |
| 21 Apr 2026, 11:42 | 8.08 | 8.08 |
| 24 Mar 2026, 13:20 | 8.19 | 8.19 |
| 27 Feb 2026, 14:35 | 7.9 | 7.9 |
| 9 Feb 2026, 13:36 | 7.5 | 7.5 |
| 5 Dec 2025, 14:22 | 7.62 | 7.62 |
| 7 Nov 2025, 11:41 | 7.62 | 7.62 |
| 20 Oct 2025, 13:49 | 7.39 | 7.39 |
| 22 Sep 2025, 12:16 | 7.61 | 7.61 |
| 27 Aug 2025, 11:12 | 7.56 | 7.56 |
| 27 Jun 2025, 14:14 | 7.62 | 7.62 |
| 7 May 2025, 12:00 | 8.09 | 8.09 |
| 7 Apr 2025, 10:54 | 8.05 | 8.05 |
| 18 Mar 2025, 12:35 | 8.22 | 8.22 |
| 11 Feb 2025, 12:03 | 7.85 | 7.85 |
| 21 Jan 2025, 11:41 | 7.15 | 7.15 |
| 12 Dec 2024, 11:57 | 7.2 | 7.2 |
| 26 Nov 2024, 17:07 | 7.37 | 7.37 |
| 28 Oct 2024, 13:40 | 7.17 | 7.17 |
| 20 Sep 2024, 10:30 | 7.64 | 7.64 |
| 30 Aug 2024, 10:44 | 7.6 | 7.6 |
| 30 Aug 2024, 10:43 | 7.6 | 7.6 |
| 28 Jun 2024, 12:17 | 7.5 | 7.5 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.055 mg/l
Sampled 11 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 May 2026, 13:07 | 0.055 | 0.055 mg/l |
| 21 Apr 2026, 11:42 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Mar 2026, 13:20 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Feb 2026, 14:35 | 0.096 | 0.096 mg/l |
| 9 Feb 2026, 13:36 | 0.083 | 0.083 mg/l |
| 5 Dec 2025, 14:22 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Nov 2025, 11:41 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Oct 2025, 13:49 | 0.088 | 0.088 mg/l |
| 22 Sep 2025, 12:16 | 0.078 | 0.078 mg/l |
| 12 Sep 2025, 13:10 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Aug 2025, 11:12 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Jun 2025, 14:14 | 0.032 | 0.032 mg/l |
| 7 May 2025, 12:00 | 0.033 | 0.033 mg/l |
| 7 Apr 2025, 10:54 | 0.066 | 0.066 mg/l |
| 18 Mar 2025, 12:35 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Feb 2025, 12:03 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Jan 2025, 11:41 | 0.38 | 0.38 mg/l |
| 12 Dec 2024, 11:57 | 0.12 | 0.12 mg/l |
| 26 Nov 2024, 17:07 | 0.11 | 0.11 mg/l |
| 28 Oct 2024, 13:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Sep 2024, 10:30 | <0.03 | below 0.03 mg/l (not detected above this) |
| 30 Aug 2024, 10:44 | <0.03 | below 0.03 mg/l (not detected above this) |
| 30 Aug 2024, 10:43 | <0.03 | below 0.03 mg/l (not detected above this) |
| 28 Jun 2024, 12:17 | 0.042 | 0.042 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
4.18 mg/l
Sampled 11 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 May 2026, 13:07 | 4.18 | 4.18 mg/l |
| 21 Apr 2026, 11:42 | 3.49 | 3.49 mg/l |
| 24 Mar 2026, 13:20 | 5.49 | 5.49 mg/l |
| 27 Feb 2026, 14:35 | 2.57 | 2.57 mg/l |
| 9 Feb 2026, 13:36 | 1.98 | 1.98 mg/l |
| 5 Dec 2025, 14:22 | 1.89 | 1.89 mg/l |
| 7 Nov 2025, 11:41 | 3.19 | 3.19 mg/l |
| 20 Oct 2025, 13:49 | 20 | 20 mg/l |
| 22 Sep 2025, 12:16 | 4.61 | 4.61 mg/l |
| 12 Sep 2025, 13:10 | 3.2 | 3.2 mg/l |
| 27 Aug 2025, 11:12 | 16 | 16 mg/l |
| 27 Jun 2025, 14:14 | 6.79 | 6.79 mg/l |
| 7 May 2025, 12:00 | 5.28 | 5.28 mg/l |
| 7 Apr 2025, 10:54 | 13 | 13 mg/l |
| 18 Mar 2025, 12:35 | 6.57 | 6.57 mg/l |
| 11 Feb 2025, 12:03 | 3.09 | 3.09 mg/l |
| 21 Jan 2025, 11:41 | 0.231 | 0.231 mg/l |
| 12 Dec 2024, 11:57 | 0.187 | 0.187 mg/l |
| 26 Nov 2024, 17:07 | 2.08 | 2.08 mg/l |
| 28 Oct 2024, 13:40 | <0.196 | below 0.196 mg/l (not detected above this) |
| 20 Sep 2024, 10:30 | 4.99 | 4.99 mg/l |
| 30 Aug 2024, 10:44 | 11 | 11 mg/l |
| 30 Aug 2024, 10:43 | 11 | 11 mg/l |
| 28 Jun 2024, 12:17 | 14 | 14 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.052 mg/l
Sampled 11 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 May 2026, 13:07 | 0.052 | 0.052 mg/l |
| 21 Apr 2026, 11:42 | 0.025 | 0.025 mg/l |
| 24 Mar 2026, 13:20 | 0.042 | 0.042 mg/l |
| 27 Feb 2026, 14:35 | 0.074 | 0.074 mg/l |
| 9 Feb 2026, 13:36 | 0.12 | 0.12 mg/l |
| 5 Dec 2025, 14:22 | 0.1 | 0.1 mg/l |
| 7 Nov 2025, 11:41 | 0.082 | 0.082 mg/l |
| 20 Oct 2025, 13:49 | 0.17 | 0.17 mg/l |
| 22 Sep 2025, 12:16 | 0.095 | 0.095 mg/l |
| 12 Sep 2025, 13:10 | 0.094 | 0.094 mg/l |
| 27 Aug 2025, 11:12 | 0.065 | 0.065 mg/l |
| 27 Jun 2025, 14:14 | 0.079 | 0.079 mg/l |
| 7 May 2025, 12:00 | 0.053 | 0.053 mg/l |
| 7 Apr 2025, 10:54 | 0.13 | 0.13 mg/l |
| 18 Mar 2025, 12:35 | 0.031 | 0.031 mg/l |
| 11 Feb 2025, 12:03 | 0.064 | 0.064 mg/l |
| 21 Jan 2025, 11:41 | 0.26 | 0.26 mg/l |
| 12 Dec 2024, 11:57 | 0.16 | 0.16 mg/l |
| 26 Nov 2024, 17:07 | 0.16 | 0.16 mg/l |
| 28 Oct 2024, 13:40 | 0.6 | 0.6 mg/l |
| 20 Sep 2024, 10:30 | 0.078 | 0.078 mg/l |
| 30 Aug 2024, 10:44 | 0.077 | 0.077 mg/l |
| 30 Aug 2024, 10:43 | 0.076 | 0.076 mg/l |
| 28 Jun 2024, 12:17 | 0.16 | 0.16 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
590 µS/cm
Sampled 11 May 2026, 5 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 May 2026, 13:07 | 590 | 590 µS/cm |
| 21 Apr 2026, 11:42 | 564 | 564 µS/cm |
| 24 Mar 2026, 13:20 | 589 | 589 µS/cm |
| 27 Feb 2026, 14:35 | 479 | 479 µS/cm |
| 9 Feb 2026, 13:36 | 318 | 318 µS/cm |
| 5 Dec 2025, 14:22 | 366 | 366 µS/cm |
| 7 Nov 2025, 11:41 | 509 | 509 µS/cm |
| 20 Oct 2025, 13:49 | 828 | 828 µS/cm |
| 22 Sep 2025, 12:16 | 609 | 609 µS/cm |
| 27 Aug 2025, 11:12 | 755 | 755 µS/cm |
| 27 Jun 2025, 14:14 | 624 | 624 µS/cm |
| 7 May 2025, 12:00 | 603 | 603 µS/cm |
| 7 Apr 2025, 10:54 | 656 | 656 µS/cm |
| 18 Mar 2025, 12:35 | 612 | 612 µS/cm |
| 11 Feb 2025, 12:03 | 475 | 475 µS/cm |
| 21 Jan 2025, 11:41 | 425 | 425 µS/cm |
| 12 Dec 2024, 11:57 | 431 | 431 µS/cm |
| 26 Nov 2024, 17:07 | 346 | 346 µS/cm |
| 28 Oct 2024, 13:40 | 464 | 464 µS/cm |
| 20 Sep 2024, 10:30 | 592 | 592 µS/cm |
| 30 Aug 2024, 10:44 | 641 | 641 µS/cm |
| 30 Aug 2024, 10:43 | 641 | 641 µS/cm |
| 28 Jun 2024, 12:17 | 706 | 706 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 | 23 | Jun 2024 – May 2026 | 100.2% 11 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 23 | Jun 2024 – May 2026 | 10.8 mg/l 11 May 2026 |
| Temperature of Water 0076 | River water | 23 | Jun 2024 – May 2026 | 12 °C 11 May 2026 |
| pH 0061 | River water | 23 | Jun 2024 – May 2026 | 8.08 11 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 24 | Jun 2024 – May 2026 | 0.055 mg/l 11 May 2026 |
| Nitrate as N 0117 | River water | 24 | Jun 2024 – May 2026 | 4.18 mg/l 11 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 24 | Jun 2024 – May 2026 | 0.052 mg/l 11 May 2026 |
| Conductivity at 25 C 0077 | River water | 23 | Jun 2024 – May 2026 | 590 µS/cm 11 May 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 24 | Jun 2024 – May 2026 | 200 mg/l 11 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 23 | Jun 2024 – May 2026 | 0.00116 mg/l 11 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 23 | Jun 2024 – May 2026 | below 3 mg/l 11 May 2026 |
| Nitrite as N 0118 | River water | 24 | Jun 2024 – May 2026 | 0.02 mg/l 11 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 24 | Jun 2024 – May 2026 | 4.2 mg/l 11 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.