Dean Brook Broughton Green Harmans Hill
EA name: DEAN BROOK BROUGHTON GRN HARMANS HILL
Environment Agency sampling point MD-06274040 · 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
- 22 May 2026, 11:184 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
- 19 since 18 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 395150, 260250As published, to the nearest 10 m. Open in a map
- River, by its own name
- Dean Brook
- River, by the map
- Dean BrookPlaced on the river its name gives, 30 m from the line.
- Next gauge downstream
- Besford Bridge On the Bow Brook · 21 km along the river
- Why it was sampled
- Monitoring (national agency policy) (19 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
79.8%
Sampled 22 May 2026, 4 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 May 2026, 11:18 | 79.8 | 79.8% |
| 22 Apr 2026, 12:33 | 93.6 | 93.6% |
| 10 Mar 2026, 11:38 | 88.6 | 88.6% |
| 6 Feb 2026, 09:39 | 89.4 | 89.4% |
| 4 Mar 2025, 11:58 | 96.5 | 96.5% |
| 30 Jan 2025, 10:55 | 92.2 | 92.2% |
| 2 Dec 2024, 09:56 | 86.6 | 86.6% |
| 19 Nov 2024, 11:13 | 84.3 | 84.3% |
| 24 Oct 2024, 12:36 | 78.9 | 78.9% |
| 17 Sep 2024, 10:24 | 89.5 | 89.5% |
| 29 Aug 2024, 14:31 | 90.1 | 90.1% |
| 16 May 2024, 13:30 | 90.6 | 90.6% |
| 25 Apr 2024, 09:27 | 93.2 | 93.2% |
| 18 Mar 2024, 11:31 | 91 | 91% |
| 19 Feb 2024, 12:20 | 86.7 | 86.7% |
| 24 Jan 2024, 11:55 | 91 | 91% |
| 7 Dec 2023, 12:30 | 82.1 | 82.1% |
| 30 Nov 2023, 11:53 | 89.9 | 89.9% |
| 18 Oct 2023, 12:29 | 87.4 | 87.4% |
Dissolved oxygen
as O2 · code 9924 · mg/l
7.87 mg/l
Sampled 22 May 2026, 4 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 May 2026, 11:18 | 7.87 | 7.87 mg/l |
| 22 Apr 2026, 12:33 | 10.3 | 10.3 mg/l |
| 10 Mar 2026, 11:38 | 10.2 | 10.2 mg/l |
| 6 Feb 2026, 09:39 | 10.8 | 10.8 mg/l |
| 4 Mar 2025, 11:58 | 11.8 | 11.8 mg/l |
| 30 Jan 2025, 10:55 | 11.6 | 11.6 mg/l |
| 2 Dec 2024, 09:56 | 9.9 | 9.9 mg/l |
| 19 Nov 2024, 11:13 | 10.5 | 10.5 mg/l |
| 24 Oct 2024, 12:36 | 8.45 | 8.45 mg/l |
| 17 Sep 2024, 10:24 | 9.89 | 9.89 mg/l |
| 29 Aug 2024, 14:31 | 8.91 | 8.91 mg/l |
| 16 May 2024, 13:30 | 9.15 | 9.15 mg/l |
| 25 Apr 2024, 09:27 | 11 | 11 mg/l |
| 18 Mar 2024, 11:31 | 10.3 | 10.3 mg/l |
| 19 Feb 2024, 12:20 | 9.81 | 9.81 mg/l |
| 24 Jan 2024, 11:55 | 10.8 | 10.8 mg/l |
| 7 Dec 2023, 12:30 | 10.1 | 10.1 mg/l |
| 30 Nov 2023, 11:53 | 11.9 | 11.9 mg/l |
| 18 Oct 2023, 12:29 | 9.55 | 9.55 mg/l |
Water temperature
code 0076 · °C
15.9 °C
Sampled 22 May 2026, 4 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 May 2026, 11:18 | 15.9 | 15.9 °C |
| 22 Apr 2026, 12:33 | 10.8 | 10.8 °C |
| 10 Mar 2026, 11:38 | 9 | 9 °C |
| 6 Feb 2026, 09:39 | 7.1 | 7.1 °C |
| 4 Mar 2025, 11:58 | 6.5 | 6.5 °C |
| 30 Jan 2025, 10:55 | 5.5 | 5.5 °C |
| 2 Dec 2024, 09:56 | 9.4 | 9.4 °C |
| 19 Nov 2024, 11:13 | 6 | 6 °C |
| 24 Oct 2024, 12:36 | 12.2 | 12.2 °C |
| 17 Sep 2024, 10:24 | 10.8 | 10.8 °C |
| 29 Aug 2024, 14:31 | 15.8 | 15.8 °C |
| 16 May 2024, 13:30 | 14.8 | 14.8 °C |
| 25 Apr 2024, 09:27 | 8.1 | 8.1 °C |
| 18 Mar 2024, 11:31 | 10 | 10 °C |
| 19 Feb 2024, 12:20 | 9.8 | 9.8 °C |
| 24 Jan 2024, 11:55 | 7.8 | 7.8 °C |
| 7 Dec 2023, 12:30 | 6.3 | 6.3 °C |
| 30 Nov 2023, 11:53 | 3.7 | 3.7 °C |
| 18 Oct 2023, 12:29 | 11.3 | 11.3 °C |
pH
code 0061
7.97
Sampled 22 May 2026, 4 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 May 2026, 11:18 | 7.97 | 7.97 |
| 22 Apr 2026, 12:33 | 8.14 | 8.14 |
| 10 Mar 2026, 11:38 | 8 | 8 |
| 6 Feb 2026, 09:39 | 7.6 | 7.6 |
| 4 Mar 2025, 11:58 | 8.04 | 8.04 |
| 30 Jan 2025, 10:55 | 7.65 | 7.65 |
| 2 Dec 2024, 09:56 | 7.72 | 7.72 |
| 19 Nov 2024, 11:13 | 7.96 | 7.96 |
| 24 Oct 2024, 12:36 | 7.78 | 7.78 |
| 17 Sep 2024, 10:24 | 8.02 | 8.02 |
| 29 Aug 2024, 14:31 | 8.04 | 8.04 |
| 16 May 2024, 13:30 | 7.98 | 7.98 |
| 25 Apr 2024, 09:27 | 7.81 | 7.81 |
| 18 Mar 2024, 11:31 | 7.66 | 7.66 |
| 19 Feb 2024, 12:20 | 7.54 | 7.54 |
| 24 Jan 2024, 11:55 | 7.84 | 7.84 |
| 7 Dec 2023, 12:30 | 7.59 | 7.59 |
| 30 Nov 2023, 11:53 | 7.87 | 7.87 |
| 18 Oct 2023, 12:29 | 8.01 | 8.01 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.053 mg/l
Sampled 22 May 2026, 4 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 May 2026, 11:18 | 0.053 | 0.053 mg/l |
| 22 Apr 2026, 12:33 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Mar 2026, 11:38 | 0.055 | 0.055 mg/l |
| 6 Feb 2026, 09:39 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Mar 2025, 11:58 | 0.041 | 0.041 mg/l |
| 30 Jan 2025, 10:55 | 0.047 | 0.047 mg/l |
| 2 Dec 2024, 09:56 | 0.038 | 0.038 mg/l |
| 19 Nov 2024, 11:13 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Oct 2024, 12:36 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Sep 2024, 10:24 | <0.03 | below 0.03 mg/l (not detected above this) |
| 29 Aug 2024, 14:31 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 May 2024, 13:30 | <0.03 | below 0.03 mg/l (not detected above this) |
| 25 Apr 2024, 09:27 | 0.042 | 0.042 mg/l |
| 18 Mar 2024, 11:31 | 0.39 | 0.39 mg/l |
| 19 Feb 2024, 12:20 | 0.058 | 0.058 mg/l |
| 24 Jan 2024, 11:55 | 0.084 | 0.084 mg/l |
| 7 Dec 2023, 12:30 | 0.042 | 0.042 mg/l |
| 30 Nov 2023, 11:53 | 0.041 | 0.041 mg/l |
| 18 Oct 2023, 12:29 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.941 mg/l
Sampled 22 May 2026, 4 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 May 2026, 11:18 | 0.941 | 0.941 mg/l |
| 22 Apr 2026, 12:33 | 1.79 | 1.79 mg/l |
| 10 Mar 2026, 11:38 | 2.97 | 2.97 mg/l |
| 6 Feb 2026, 09:39 | 3.39 | 3.39 mg/l |
| 4 Mar 2025, 11:58 | 3.69 | 3.69 mg/l |
| 30 Jan 2025, 10:55 | 3.48 | 3.48 mg/l |
| 2 Dec 2024, 09:56 | 4.28 | 4.28 mg/l |
| 19 Nov 2024, 11:13 | 2.39 | 2.39 mg/l |
| 24 Oct 2024, 12:36 | 2.69 | 2.69 mg/l |
| 17 Sep 2024, 10:24 | 1.5 | 1.5 mg/l |
| 29 Aug 2024, 14:31 | 1.1 | 1.1 mg/l |
| 16 May 2024, 13:30 | 2.18 | 2.18 mg/l |
| 25 Apr 2024, 09:27 | 3.09 | 3.09 mg/l |
| 18 Mar 2024, 11:31 | 1.87 | 1.87 mg/l |
| 19 Feb 2024, 12:20 | 1.88 | 1.88 mg/l |
| 7 Dec 2023, 12:30 | 2.88 | 2.88 mg/l |
| 30 Nov 2023, 11:53 | 2.97 | 2.97 mg/l |
| 18 Oct 2023, 12:29 | 2.69 | 2.69 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.12 mg/l
Sampled 22 May 2026, 4 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 May 2026, 11:18 | 0.12 | 0.12 mg/l |
| 22 Apr 2026, 12:33 | 0.073 | 0.073 mg/l |
| 10 Mar 2026, 11:38 | 0.12 | 0.12 mg/l |
| 6 Feb 2026, 09:39 | 0.18 | 0.18 mg/l |
| 4 Mar 2025, 11:58 | 0.1 | 0.1 mg/l |
| 30 Jan 2025, 10:55 | 0.18 | 0.18 mg/l |
| 2 Dec 2024, 09:56 | 0.19 | 0.19 mg/l |
| 19 Nov 2024, 11:13 | 0.15 | 0.15 mg/l |
| 24 Oct 2024, 12:36 | 0.14 | 0.14 mg/l |
| 17 Sep 2024, 10:24 | 0.12 | 0.12 mg/l |
| 29 Aug 2024, 14:31 | 0.14 | 0.14 mg/l |
| 16 May 2024, 13:30 | 0.17 | 0.17 mg/l |
| 25 Apr 2024, 09:27 | 0.14 | 0.14 mg/l |
| 18 Mar 2024, 11:31 | 0.16 | 0.16 mg/l |
| 19 Feb 2024, 12:20 | 0.18 | 0.18 mg/l |
| 24 Jan 2024, 11:55 | 0.15 | 0.15 mg/l |
| 7 Dec 2023, 12:30 | 0.22 | 0.22 mg/l |
| 30 Nov 2023, 11:53 | 0.15 | 0.15 mg/l |
| 18 Oct 2023, 12:29 | 0.13 | 0.13 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
2160 µS/cm
Sampled 22 May 2026, 4 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 May 2026, 11:18 | 2160 | 2160 µS/cm |
| 22 Apr 2026, 12:33 | 1971 | 1971 µS/cm |
| 10 Mar 2026, 11:38 | 1404 | 1404 µS/cm |
| 6 Feb 2026, 09:39 | 473 | 473 µS/cm |
| 4 Mar 2025, 11:58 | 1436 | 1436 µS/cm |
| 30 Jan 2025, 10:55 | 931 | 931 µS/cm |
| 2 Dec 2024, 09:56 | 854 | 854 µS/cm |
| 19 Nov 2024, 11:13 | 1796 | 1796 µS/cm |
| 24 Oct 2024, 12:36 | 1318 | 1318 µS/cm |
| 17 Sep 2024, 10:24 | 2452 | 2452 µS/cm |
| 29 Aug 2024, 14:31 | 2416 | 2416 µS/cm |
| 16 May 2024, 13:30 | 1703 | 1703 µS/cm |
| 25 Apr 2024, 09:27 | 1667 | 1667 µS/cm |
| 18 Mar 2024, 11:31 | 685 | 685 µS/cm |
| 19 Feb 2024, 12:20 | 653 | 653 µS/cm |
| 24 Jan 2024, 11:55 | 1031 | 1031 µS/cm |
| 7 Dec 2023, 12:30 | 705 | 705 µS/cm |
| 30 Nov 2023, 11:53 | 1530 | 1530 µS/cm |
| 18 Oct 2023, 12:29 | 1937 | 1937 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 | 19 | Oct 2023 – May 2026 | 79.8% 22 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 19 | Oct 2023 – May 2026 | 7.87 mg/l 22 May 2026 |
| Temperature of Water 0076 | River water | 19 | Oct 2023 – May 2026 | 15.9 °C 22 May 2026 |
| pH 0061 | River water | 19 | Oct 2023 – May 2026 | 7.97 22 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 19 | Oct 2023 – May 2026 | 0.053 mg/l 22 May 2026 |
| Nitrate as N 0117 | River water | 18 | Oct 2023 – May 2026 | 0.941 mg/l 22 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 19 | Oct 2023 – May 2026 | 0.12 mg/l 22 May 2026 |
| Conductivity at 25 C 0077 | River water | 19 | Oct 2023 – May 2026 | 2160 µS/cm 22 May 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 19 | Oct 2023 – May 2026 | 300 mg/l 22 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 19 | Oct 2023 – May 2026 | 0.00139 mg/l 22 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 15 | Feb 2024 – May 2026 | 1.1 mg/l 22 May 2026 |
| Nitrite as N 0118 | River water | 18 | Oct 2023 – May 2026 | 0.019 mg/l 22 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 19 | Oct 2023 – May 2026 | 0.96 mg/l 22 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.