Blyth at Bellasis Bridge
EA name: BLYTH AT BELLASIS BRIDGE
Environment Agency sampling point NE-42600003 · 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
- 14 May 2026, 13:105 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 18 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 419010, 577660As published, to the nearest 10 m. Open in a map
- River, by its own name
- Blyth
- River, by the map
- River BlythPlaced on the river its name gives, 1 m from the line.
- Next gauge downstream
- Hartford Bridge On the River Blyth · 8.3 km along the river
- Nearest gauge upstream
- Callerton Lane On the River Pont · 8.9 km along the river
- Why it was sampled
- Monitoring (national agency policy) (24 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
102.9%
Sampled 14 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 May 2026, 13:10 | 102.9 | 102.9% |
| 8 Apr 2026, 08:11 | 94.1 | 94.1% |
| 2 Mar 2026, 10:19 | 97.2 | 97.2% |
| 2 Feb 2026, 11:57 | 96 | 96% |
| 2 Jan 2026, 11:11 | 98.3 | 98.3% |
| 1 Dec 2025, 08:39 | 96.9 | 96.9% |
| 3 Nov 2025, 10:07 | 92.9 | 92.9% |
| 1 Oct 2025, 09:58 | 90.5 | 90.5% |
| 2 Sep 2025, 10:09 | 86.3 | 86.3% |
| 4 Aug 2025, 11:30 | 92.1 | 92.1% |
| 9 Jul 2025, 09:11 | 83.8 | 83.8% |
| 2 Jun 2025, 10:19 | 86.9 | 86.9% |
| 6 May 2025, 08:24 | 95.9 | 95.9% |
| 2 Apr 2025, 09:50 | 93.2 | 93.2% |
| 3 Mar 2025, 13:02 | 108.3 | 108.3% |
| 4 Feb 2025, 11:49 | 100.1 | 100.1% |
| 21 Jan 2025, 09:36 | 97.1 | 97.1% |
| 4 Dec 2024, 12:53 | 98.9 | 98.9% |
| 18 Nov 2024, 10:47 | 97.2 | 97.2% |
| 16 Oct 2024, 09:45 | 97.1 | 97.1% |
| 16 Sep 2024, 10:34 | 91.6 | 91.6% |
| 22 Aug 2024, 10:19 | 102.4 | 102.4% |
| 16 Jul 2024, 12:21 | 97.7 | 97.7% |
| 18 Jun 2024, 10:41 | 87.3 | 87.3% |
Dissolved oxygen
as O2 · code 9924 · mg/l
11.4 mg/l
Sampled 14 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 May 2026, 13:10 | 11.4 | 11.4 mg/l |
| 8 Apr 2026, 08:11 | 10.8 | 10.8 mg/l |
| 2 Mar 2026, 10:19 | 11.4 | 11.4 mg/l |
| 2 Feb 2026, 11:57 | 12.1 | 12.1 mg/l |
| 2 Jan 2026, 11:11 | 13.7 | 13.7 mg/l |
| 1 Dec 2025, 08:39 | 12 | 12 mg/l |
| 3 Nov 2025, 10:07 | 10.8 | 10.8 mg/l |
| 1 Oct 2025, 09:58 | 9.75 | 9.75 mg/l |
| 2 Sep 2025, 10:09 | 8.7 | 8.7 mg/l |
| 4 Aug 2025, 11:30 | 8.88 | 8.88 mg/l |
| 9 Jul 2025, 09:11 | 7.91 | 7.91 mg/l |
| 2 Jun 2025, 10:19 | 8.7 | 8.7 mg/l |
| 6 May 2025, 08:24 | 11 | 11 mg/l |
| 2 Apr 2025, 09:50 | 11 | 11 mg/l |
| 3 Mar 2025, 13:02 | 13.2 | 13.2 mg/l |
| 4 Feb 2025, 11:49 | 12.4 | 12.4 mg/l |
| 21 Jan 2025, 09:36 | 12.9 | 12.9 mg/l |
| 4 Dec 2024, 12:53 | 12.6 | 12.6 mg/l |
| 18 Nov 2024, 10:47 | 12.9 | 12.9 mg/l |
| 16 Oct 2024, 09:45 | 10.8 | 10.8 mg/l |
| 16 Sep 2024, 10:34 | 9.87 | 9.87 mg/l |
| 22 Aug 2024, 10:19 | 10.3 | 10.3 mg/l |
| 16 Jul 2024, 12:21 | 9.72 | 9.72 mg/l |
| 18 Jun 2024, 10:41 | 9.09 | 9.09 mg/l |
Water temperature
code 0076 · °C
10.8 °C
Sampled 14 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 May 2026, 13:10 | 10.8 | 10.8 °C |
| 8 Apr 2026, 08:11 | 9.2 | 9.2 °C |
| 2 Mar 2026, 10:19 | 8.3 | 8.3 °C |
| 2 Feb 2026, 11:57 | 5.6 | 5.6 °C |
| 2 Jan 2026, 11:11 | 1.6 | 1.6 °C |
| 1 Dec 2025, 08:39 | 6 | 6 °C |
| 3 Nov 2025, 10:07 | 8.6 | 8.6 °C |
| 1 Oct 2025, 09:58 | 11.9 | 11.9 °C |
| 2 Sep 2025, 10:09 | 14.9 | 14.9 °C |
| 4 Aug 2025, 11:30 | 17 | 17 °C |
| 9 Jul 2025, 09:11 | 18 | 18 °C |
| 2 Jun 2025, 10:19 | 15.2 | 15.2 °C |
| 6 May 2025, 08:24 | 9.1 | 9.1 °C |
| 2 Apr 2025, 09:50 | 7.9 | 7.9 °C |
| 3 Mar 2025, 13:02 | 6.9 | 6.9 °C |
| 4 Feb 2025, 11:49 | 6.2 | 6.2 °C |
| 21 Jan 2025, 09:36 | 3.3 | 3.3 °C |
| 4 Dec 2024, 12:53 | 5.1 | 5.1 °C |
| 18 Nov 2024, 10:47 | 3.6 | 3.6 °C |
| 16 Oct 2024, 09:45 | 10.4 | 10.4 °C |
| 16 Sep 2024, 10:34 | 11.9 | 11.9 °C |
| 22 Aug 2024, 10:19 | 15 | 15 °C |
| 16 Jul 2024, 12:21 | 15.5 | 15.5 °C |
| 18 Jun 2024, 10:41 | 13.4 | 13.4 °C |
pH
code 0061
8.25
Sampled 14 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 May 2026, 13:10 | 8.25 | 8.25 |
| 8 Apr 2026, 08:11 | 8.27 | 8.27 |
| 2 Mar 2026, 10:19 | 8.23 | 8.23 |
| 2 Feb 2026, 11:57 | 8.02 | 8.02 |
| 2 Jan 2026, 11:11 | 8.34 | 8.34 |
| 1 Dec 2025, 08:39 | 7.96 | 7.96 |
| 3 Nov 2025, 10:07 | 8.28 | 8.28 |
| 1 Oct 2025, 09:58 | 8.03 | 8.03 |
| 2 Sep 2025, 10:09 | 8.1 | 8.1 |
| 4 Aug 2025, 11:30 | 8.13 | 8.13 |
| 9 Jul 2025, 09:11 | 8.03 | 8.03 |
| 2 Jun 2025, 10:19 | 8.33 | 8.33 |
| 6 May 2025, 08:24 | 8.44 | 8.44 |
| 2 Apr 2025, 09:50 | 8.33 | 8.33 |
| 3 Mar 2025, 13:02 | 8.42 | 8.42 |
| 4 Feb 2025, 11:49 | 8.31 | 8.31 |
| 21 Jan 2025, 09:36 | 8.23 | 8.23 |
| 4 Dec 2024, 12:53 | 8.2 | 8.2 |
| 18 Nov 2024, 10:47 | 8.55 | 8.55 |
| 16 Oct 2024, 09:45 | 8.25 | 8.25 |
| 16 Sep 2024, 10:34 | 8.2 | 8.2 |
| 22 Aug 2024, 10:19 | 8.2 | 8.2 |
| 16 Jul 2024, 12:21 | 8.03 | 8.03 |
| 18 Jun 2024, 10:41 | 8.14 | 8.14 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 14 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 May 2026, 13:10 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Apr 2026, 08:11 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Mar 2026, 10:19 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Feb 2026, 11:57 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Jan 2026, 11:11 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Dec 2025, 08:39 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Nov 2025, 10:07 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Oct 2025, 09:58 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Sep 2025, 10:09 | 0.047 | 0.047 mg/l |
| 4 Aug 2025, 11:30 | 0.03 | 0.03 mg/l |
| 9 Jul 2025, 09:11 | 0.087 | 0.087 mg/l |
| 2 Jun 2025, 10:19 | 0.039 | 0.039 mg/l |
| 6 May 2025, 08:24 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Apr 2025, 09:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Mar 2025, 13:02 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Feb 2025, 11:49 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Jan 2025, 09:36 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Dec 2024, 12:53 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Nov 2024, 10:47 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Oct 2024, 09:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Sep 2024, 10:34 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Aug 2024, 10:19 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Jul 2024, 12:21 | 0.034 | 0.034 mg/l |
| 18 Jun 2024, 10:41 | 0.097 | 0.097 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.901 mg/l
Sampled 14 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 May 2026, 13:10 | 0.901 | 0.901 mg/l |
| 8 Apr 2026, 08:11 | 1.49 | 1.49 mg/l |
| 2 Mar 2026, 10:19 | 2.99 | 2.99 mg/l |
| 2 Feb 2026, 11:57 | 4.09 | 4.09 mg/l |
| 2 Jan 2026, 11:11 | 3.39 | 3.39 mg/l |
| 1 Dec 2025, 08:39 | 5.39 | 5.39 mg/l |
| 3 Nov 2025, 10:07 | 0.806 | 0.806 mg/l |
| 1 Oct 2025, 09:58 | 0.556 | 0.556 mg/l |
| 2 Sep 2025, 10:09 | 0.346 | 0.346 mg/l |
| 4 Aug 2025, 11:30 | 0.296 | 0.296 mg/l |
| 9 Jul 2025, 09:11 | 0.354 | 0.354 mg/l |
| 2 Jun 2025, 10:19 | 0.605 | 0.605 mg/l |
| 6 May 2025, 08:24 | 0.436 | 0.436 mg/l |
| 2 Apr 2025, 09:50 | 1.09 | 1.09 mg/l |
| 3 Mar 2025, 13:02 | 1.89 | 1.89 mg/l |
| 4 Feb 2025, 11:49 | 2.49 | 2.49 mg/l |
| 21 Jan 2025, 09:36 | 2.59 | 2.59 mg/l |
| 4 Dec 2024, 12:53 | 2.89 | 2.89 mg/l |
| 18 Nov 2024, 10:47 | 1.79 | 1.79 mg/l |
| 16 Oct 2024, 09:45 | 2.69 | 2.69 mg/l |
| 16 Sep 2024, 10:34 | 0.945 | 0.945 mg/l |
| 22 Aug 2024, 10:19 | 0.716 | 0.716 mg/l |
| 16 Jul 2024, 12:21 | 1.69 | 1.69 mg/l |
| 18 Jun 2024, 10:41 | 1.67 | 1.67 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.011 mg/l
Sampled 14 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 May 2026, 13:10 | 0.011 | 0.011 mg/l |
| 8 Apr 2026, 08:11 | 0.02 | 0.02 mg/l |
| 2 Mar 2026, 10:19 | 0.031 | 0.031 mg/l |
| 2 Feb 2026, 11:57 | 0.029 | 0.029 mg/l |
| 2 Jan 2026, 11:11 | 0.038 | 0.038 mg/l |
| 1 Dec 2025, 08:39 | 0.036 | 0.036 mg/l |
| 3 Nov 2025, 10:07 | 0.044 | 0.044 mg/l |
| 1 Oct 2025, 09:58 | 0.045 | 0.045 mg/l |
| 2 Sep 2025, 10:09 | 0.049 | 0.049 mg/l |
| 4 Aug 2025, 11:30 | 0.043 | 0.043 mg/l |
| 9 Jul 2025, 09:11 | 0.053 | 0.053 mg/l |
| 2 Jun 2025, 10:19 | 0.024 | 0.024 mg/l |
| 6 May 2025, 08:24 | 0.011 | 0.011 mg/l |
| 2 Apr 2025, 09:50 | <0.01 | below 0.01 mg/l (not detected above this) |
| 3 Mar 2025, 13:02 | 0.01 | 0.01 mg/l |
| 4 Feb 2025, 11:49 | 0.025 | 0.025 mg/l |
| 21 Jan 2025, 09:36 | 0.03 | 0.03 mg/l |
| 4 Dec 2024, 12:53 | 0.028 | 0.028 mg/l |
| 18 Nov 2024, 10:47 | 0.031 | 0.031 mg/l |
| 16 Oct 2024, 09:45 | 0.029 | 0.029 mg/l |
| 16 Sep 2024, 10:34 | 0.046 | 0.046 mg/l |
| 22 Aug 2024, 10:19 | 0.036 | 0.036 mg/l |
| 16 Jul 2024, 12:21 | 0.051 | 0.051 mg/l |
| 18 Jun 2024, 10:41 | 0.057 | 0.057 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
552 µS/cm
Sampled 14 May 2026, 5 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 May 2026, 13:10 | 552 | 552 µS/cm |
| 8 Apr 2026, 08:11 | 539 | 539 µS/cm |
| 2 Mar 2026, 10:19 | 561 | 561 µS/cm |
| 2 Feb 2026, 11:57 | 461 | 461 µS/cm |
| 2 Jan 2026, 11:11 | 610 | 610 µS/cm |
| 1 Dec 2025, 08:39 | 486 | 486 µS/cm |
| 3 Nov 2025, 10:07 | 595 | 595 µS/cm |
| 1 Oct 2025, 09:58 | 542 | 542 µS/cm |
| 2 Sep 2025, 10:09 | 545 | 545 µS/cm |
| 4 Aug 2025, 11:30 | 517 | 517 µS/cm |
| 9 Jul 2025, 09:11 | 511 | 511 µS/cm |
| 2 Jun 2025, 10:19 | 575 | 575 µS/cm |
| 6 May 2025, 08:24 | 541 | 541 µS/cm |
| 2 Apr 2025, 09:50 | 568 | 568 µS/cm |
| 3 Mar 2025, 13:02 | 583 | 583 µS/cm |
| 4 Feb 2025, 11:49 | 599 | 599 µS/cm |
| 21 Jan 2025, 09:36 | 592 | 592 µS/cm |
| 4 Dec 2024, 12:53 | 598 | 598 µS/cm |
| 18 Nov 2024, 10:47 | 597 | 597 µS/cm |
| 16 Oct 2024, 09:45 | 632 | 632 µS/cm |
| 16 Sep 2024, 10:34 | 528 | 528 µS/cm |
| 22 Aug 2024, 10:19 | 534 | 534 µS/cm |
| 16 Jul 2024, 12:21 | 520 | 520 µS/cm |
| 18 Jun 2024, 10:41 | 492 | 492 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 | 24 | Jun 2024 – May 2026 | 102.9% 14 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 24 | Jun 2024 – May 2026 | 11.4 mg/l 14 May 2026 |
| Temperature of Water 0076 | River water | 24 | Jun 2024 – May 2026 | 10.8 °C 14 May 2026 |
| pH 0061 | River water | 24 | Jun 2024 – May 2026 | 8.25 14 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 24 | Jun 2024 – May 2026 | below 0.03 mg/l 14 May 2026 |
| Nitrate as N 0117 | River water | 24 | Jun 2024 – May 2026 | 0.901 mg/l 14 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 24 | Jun 2024 – May 2026 | 0.011 mg/l 14 May 2026 |
| Conductivity at 25 C 0077 | River water | 24 | Jun 2024 – May 2026 | 552 µS/cm 14 May 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 24 | Jun 2024 – May 2026 | 200 mg/l 14 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 24 | Jun 2024 – May 2026 | below 0.00058 mg/l 14 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 23 | Jun 2024 – May 2026 | 1.6 mg/l 14 May 2026 |
| Nitrite as N 0118 | River water | 24 | Jun 2024 – May 2026 | 0.0094 mg/l 14 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 24 | Jun 2024 – May 2026 | 0.91 mg/l 14 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.