Horton Burn upstream of River Blyth
EA name: HORTON BURN UPSTREAM OF RIVER BLYTH
Environment Agency sampling point NE-42600200 · 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
- 4 Mar 2026, 11:027 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
- 18 since 4 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 426827, 580536As published, to the nearest 1 m. Open in a map
- River, by its own name
- Horton Burn
- River, by the map
- Horton BurnPlaced on the river its name gives, 3 m from the line.
- Next gauge downstream
- None tracedIts water reaches the sea without passing a gauge.
- Why it was sampled
- Environmental monitoring statutory (EU directives) (12 samples)
Planned investigation (local monitoring) (6 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
105.1%
Sampled 4 Mar 2026, 7 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Mar 2026, 11:02 | 105.1 | 105.1% |
| 2 Feb 2026, 11:25 | 97.3 | 97.3% |
| 5 Jan 2026, 09:08 | 95.2 | 95.2% |
| 1 Dec 2025, 12:49 | 98.1 | 98.1% |
| 5 Nov 2025, 12:43 | 93 | 93% |
| 3 Oct 2025, 10:33 | 95.5 | 95.5% |
| 2 Sep 2025, 09:01 | 84.4 | 84.4% |
| 7 Aug 2025, 13:04 | 93.5 | 93.5% |
| 8 Jul 2025, 09:22 | 83.5 | 83.5% |
| 4 Jun 2025, 09:59 | 91.7 | 91.7% |
| 7 May 2025, 13:14 | 99.4 | 99.4% |
| 1 Apr 2025, 10:49 | 95.6 | 95.6% |
| 6 Mar 2024, 08:49 | 98.7 | 98.7% |
| 2 Feb 2024, 10:14 | 99.5 | 99.5% |
| 3 Jan 2024, 11:42 | 99 | 99% |
| 1 Dec 2023, 10:23 | 97.8 | 97.8% |
| 7 Nov 2023, 09:31 | 96.6 | 96.6% |
| 4 Oct 2023, 09:18 | 89 | 89% |
Dissolved oxygen
as O2 · code 9924 · mg/l
12.9 mg/l
Sampled 4 Mar 2026, 7 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Mar 2026, 11:02 | 12.9 | 12.9 mg/l |
| 2 Feb 2026, 11:25 | 11.8 | 11.8 mg/l |
| 5 Jan 2026, 09:08 | 13.9 | 13.9 mg/l |
| 1 Dec 2025, 12:49 | 11.6 | 11.6 mg/l |
| 5 Nov 2025, 12:43 | 9.82 | 9.82 mg/l |
| 3 Oct 2025, 10:33 | 9.95 | 9.95 mg/l |
| 2 Sep 2025, 09:01 | 8.54 | 8.54 mg/l |
| 7 Aug 2025, 13:04 | 9.4 | 9.4 mg/l |
| 8 Jul 2025, 09:22 | 8.82 | 8.82 mg/l |
| 4 Jun 2025, 09:59 | 9.62 | 9.62 mg/l |
| 7 May 2025, 13:14 | 11.1 | 11.1 mg/l |
| 1 Apr 2025, 10:49 | 11.2 | 11.2 mg/l |
| 6 Mar 2024, 08:49 | 12 | 12 mg/l |
| 2 Feb 2024, 10:14 | 11.9 | 11.9 mg/l |
| 3 Jan 2024, 11:42 | 11.9 | 11.9 mg/l |
| 1 Dec 2023, 10:23 | 12.4 | 12.4 mg/l |
| 7 Nov 2023, 09:31 | 11 | 11 mg/l |
| 4 Oct 2023, 09:18 | 9.57 | 9.57 mg/l |
Water temperature
code 0076 · °C
6.5 °C
Sampled 4 Mar 2026, 7 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Mar 2026, 11:02 | 6.5 | 6.5 °C |
| 2 Feb 2026, 11:25 | 7.1 | 7.1 °C |
| 5 Jan 2026, 09:08 | 0 | 0 °C |
| 1 Dec 2025, 12:49 | 7.9 | 7.9 °C |
| 5 Nov 2025, 12:43 | 12.8 | 12.8 °C |
| 3 Oct 2025, 10:33 | 13.4 | 13.4 °C |
| 2 Sep 2025, 09:01 | 14.7 | 14.7 °C |
| 7 Aug 2025, 13:04 | 15 | 15 °C |
| 8 Jul 2025, 09:22 | 12.8 | 12.8 °C |
| 4 Jun 2025, 09:59 | 13.1 | 13.1 °C |
| 7 May 2025, 13:14 | 10.4 | 10.4 °C |
| 1 Apr 2025, 10:49 | 8.3 | 8.3 °C |
| 6 Mar 2024, 08:49 | 7 | 7 °C |
| 2 Feb 2024, 10:14 | 7.5 | 7.5 °C |
| 3 Jan 2024, 11:42 | 7.5 | 7.5 °C |
| 1 Dec 2023, 10:23 | 5.2 | 5.2 °C |
| 7 Nov 2023, 09:31 | 9.4 | 9.4 °C |
| 4 Oct 2023, 09:18 | 12 | 12 °C |
pH
code 0061
8.37
Sampled 4 Mar 2026, 7 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Mar 2026, 11:02 | 8.37 | 8.37 |
| 2 Feb 2026, 11:25 | 7.98 | 7.98 |
| 5 Jan 2026, 09:08 | 8.12 | 8.12 |
| 1 Dec 2025, 12:49 | 7.79 | 7.79 |
| 5 Nov 2025, 12:43 | 7.95 | 7.95 |
| 3 Oct 2025, 10:33 | 8.08 | 8.08 |
| 2 Sep 2025, 09:01 | 8.19 | 8.19 |
| 7 Aug 2025, 13:04 | 8.24 | 8.24 |
| 8 Jul 2025, 09:22 | 7.78 | 7.78 |
| 4 Jun 2025, 09:59 | 8.45 | 8.45 |
| 7 May 2025, 13:14 | 8.59 | 8.59 |
| 1 Apr 2025, 10:49 | 8.51 | 8.51 |
| 6 Mar 2024, 08:49 | 8.3 | 8.3 |
| 2 Feb 2024, 10:14 | 8.17 | 8.17 |
| 3 Jan 2024, 11:42 | 7.99 | 7.99 |
| 1 Dec 2023, 10:23 | 8.13 | 8.13 |
| 7 Nov 2023, 09:31 | 8.27 | 8.27 |
| 4 Oct 2023, 09:18 | 8.16 | 8.16 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.43 mg/l
Sampled 4 Mar 2026, 7 months ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Mar 2026, 11:02 | 0.43 | 0.43 mg/l |
| 2 Feb 2026, 11:25 | 0.18 | 0.18 mg/l |
| 5 Jan 2026, 09:08 | 0.8 | 0.8 mg/l |
| 1 Dec 2025, 12:49 | 0.042 | 0.042 mg/l |
| 5 Nov 2025, 12:43 | 0.034 | 0.034 mg/l |
| 3 Oct 2025, 10:33 | 0.033 | 0.033 mg/l |
| 2 Sep 2025, 09:01 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Aug 2025, 13:04 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Jul 2025, 09:22 | 0.26 | 0.26 mg/l |
| 4 Jun 2025, 09:59 | 0.045 | 0.045 mg/l |
| 7 May 2025, 13:14 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Mar 2024, 08:49 | 0.039 | 0.039 mg/l |
| 2 Feb 2024, 10:14 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Jan 2024, 11:42 | 0.049 | 0.049 mg/l |
| 1 Dec 2023, 10:23 | 0.077 | 0.077 mg/l |
| 7 Nov 2023, 09:31 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Oct 2023, 09:18 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
2.33 mg/l
Sampled 4 Mar 2026, 7 months ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Mar 2026, 11:02 | 2.33 | 2.33 mg/l |
| 2 Feb 2026, 11:25 | 1.88 | 1.88 mg/l |
| 5 Jan 2026, 09:08 | 2.15 | 2.15 mg/l |
| 1 Dec 2025, 12:49 | 1.89 | 1.89 mg/l |
| 5 Nov 2025, 12:43 | 0.868 | 0.868 mg/l |
| 3 Oct 2025, 10:33 | 2.07 | 2.07 mg/l |
| 2 Sep 2025, 09:01 | 0.396 | 0.396 mg/l |
| 7 Aug 2025, 13:04 | 2.6 | 2.6 mg/l |
| 8 Jul 2025, 09:22 | 2.21 | 2.21 mg/l |
| 4 Jun 2025, 09:59 | 0.618 | 0.618 mg/l |
| 7 May 2025, 13:14 | 3.47 | 3.47 mg/l |
| 6 Mar 2024, 08:49 | 1.88 | 1.88 mg/l |
| 2 Feb 2024, 10:14 | 2.29 | 2.29 mg/l |
| 3 Jan 2024, 11:42 | 1.69 | 1.69 mg/l |
| 1 Dec 2023, 10:23 | 1.88 | 1.88 mg/l |
| 7 Nov 2023, 09:31 | 1.99 | 1.99 mg/l |
| 4 Oct 2023, 09:18 | 1.99 | 1.99 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.33 mg/l
Sampled 4 Mar 2026, 7 months ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Mar 2026, 11:02 | 0.33 | 0.33 mg/l |
| 2 Feb 2026, 11:25 | 0.06 | 0.06 mg/l |
| 5 Jan 2026, 09:08 | 0.43 | 0.43 mg/l |
| 1 Dec 2025, 12:49 | 0.074 | 0.074 mg/l |
| 5 Nov 2025, 12:43 | 0.15 | 0.15 mg/l |
| 3 Oct 2025, 10:33 | 0.16 | 0.16 mg/l |
| 2 Sep 2025, 09:01 | 0.078 | 0.078 mg/l |
| 7 Aug 2025, 13:04 | 0.63 | 0.63 mg/l |
| 8 Jul 2025, 09:22 | 0.4 | 0.4 mg/l |
| 4 Jun 2025, 09:59 | 0.07 | 0.07 mg/l |
| 7 May 2025, 13:14 | 0.81 | 0.81 mg/l |
| 6 Mar 2024, 08:49 | 0.086 | 0.086 mg/l |
| 2 Feb 2024, 10:14 | 0.088 | 0.088 mg/l |
| 3 Jan 2024, 11:42 | 0.052 | 0.052 mg/l |
| 1 Dec 2023, 10:23 | 0.095 | 0.095 mg/l |
| 7 Nov 2023, 09:31 | 0.12 | 0.12 mg/l |
| 4 Oct 2023, 09:18 | 0.46 | 0.46 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
1038 µS/cm
Sampled 4 Mar 2026, 7 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Mar 2026, 11:02 | 1038 | 1038 µS/cm |
| 2 Feb 2026, 11:25 | 616 | 616 µS/cm |
| 5 Jan 2026, 09:08 | 1699 | 1699 µS/cm |
| 1 Dec 2025, 12:49 | 366 | 366 µS/cm |
| 5 Nov 2025, 12:43 | 225 | 225 µS/cm |
| 3 Oct 2025, 10:33 | 431 | 431 µS/cm |
| 2 Sep 2025, 09:01 | 539 | 539 µS/cm |
| 7 Aug 2025, 13:04 | 693 | 693 µS/cm |
| 8 Jul 2025, 09:22 | 431 | 431 µS/cm |
| 4 Jun 2025, 09:59 | 589 | 589 µS/cm |
| 7 May 2025, 13:14 | 872 | 872 µS/cm |
| 1 Apr 2025, 10:49 | 606 | 606 µS/cm |
| 6 Mar 2024, 08:49 | 1060 | 1060 µS/cm |
| 2 Feb 2024, 10:14 | 1070 | 1070 µS/cm |
| 3 Jan 2024, 11:42 | 681 | 681 µS/cm |
| 1 Dec 2023, 10:23 | 1215 | 1215 µS/cm |
| 7 Nov 2023, 09:31 | 836 | 836 µS/cm |
| 4 Oct 2023, 09:18 | 808 | 808 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 | 18 | Oct 2023 – Mar 2026 | 105.1% 4 Mar 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 18 | Oct 2023 – Mar 2026 | 12.9 mg/l 4 Mar 2026 |
| Temperature of Water 0076 | River water | 18 | Oct 2023 – Mar 2026 | 6.5 °C 4 Mar 2026 |
| pH 0061 | River water | 18 | Oct 2023 – Mar 2026 | 8.37 4 Mar 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 17 | Oct 2023 – Mar 2026 | 0.43 mg/l 4 Mar 2026 |
| Nitrate as N 0117 | River water | 17 | Oct 2023 – Mar 2026 | 2.33 mg/l 4 Mar 2026 |
| Orthophosphate, reactive as P 0180 | River water | 17 | Oct 2023 – Mar 2026 | 0.33 mg/l 4 Mar 2026 |
| Conductivity at 25 C 0077 | River water | 18 | Oct 2023 – Mar 2026 | 1038 µS/cm 4 Mar 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 17 | Oct 2023 – Mar 2026 | 180 mg/l 4 Mar 2026 |
| Ammonia un-ionised as N 0119 | River water | 17 | Oct 2023 – Mar 2026 | 0.00607 mg/l 4 Mar 2026 |
| Nitrite as N 0118 | River water | 17 | Oct 2023 – Mar 2026 | 0.068 mg/l 4 Mar 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 17 | Oct 2023 – Mar 2026 | 2.4 mg/l 4 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.