Hooborough Brook - Overseal (B5004)
EA name: HOOBOROUGH BROOK - OVERSEAL (B5004)
Environment Agency sampling point MD-58662210 · 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
- 21 May 2026, 13:284 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
- 23 since 16 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 430100, 315900As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Hooborough Brook
- River, by the map
- Hooborough BrookPlaced on the river its name gives, 57 m from the line.
- Next gauge downstream
- Clifton Hall On the River Mease · 11 km along the river
- Why it was sampled
- Monitoring (national agency policy) (23 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
88.8%
Sampled 21 May 2026, 4 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 May 2026, 13:28 | 88.8 | 88.8% |
| 23 Apr 2026, 10:35 | 96.5 | 96.5% |
| 11 Mar 2026, 10:05 | 104.7 | 104.7% |
| 11 Feb 2026, 10:11 | 93.5 | 93.5% |
| 26 Jan 2026, 11:29 | 90.8 | 90.8% |
| 17 Dec 2025, 15:23 | 89.1 | 89.1% |
| 10 Mar 2025, 13:07 | 104.5 | 104.5% |
| 17 Feb 2025, 09:04 | 96 | 96% |
| 30 Jan 2025, 10:00 | 92.8 | 92.8% |
| 19 Nov 2024, 12:19 | 96 | 96% |
| 16 Oct 2024, 12:24 | 94 | 94% |
| 18 Sep 2024, 09:26 | 86.8 | 86.8% |
| 30 Aug 2024, 09:33 | 72 | 72% |
| 18 Jul 2024, 08:44 | 91 | 91% |
| 19 Jun 2024, 10:46 | 99.2 | 99.2% |
| 17 May 2024, 09:21 | 81.6 | 81.6% |
| 15 Apr 2024, 12:48 | 100.1 | 100.1% |
| 19 Mar 2024, 08:37 | 92.7 | 92.7% |
| 20 Feb 2024, 12:34 | 91.8 | 91.8% |
| 16 Jan 2024, 10:50 | 92 | 92% |
| 6 Dec 2023, 13:22 | 92.9 | 92.9% |
| 21 Nov 2023, 11:24 | 89.7 | 89.7% |
| 16 Oct 2023, 09:50 | 78.7 | 78.7% |
Dissolved oxygen
as O2 · code 9924 · mg/l
8.93 mg/l
Sampled 21 May 2026, 4 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 May 2026, 13:28 | 8.93 | 8.93 mg/l |
| 23 Apr 2026, 10:35 | 10.5 | 10.5 mg/l |
| 11 Mar 2026, 10:05 | 12.1 | 12.1 mg/l |
| 11 Feb 2026, 10:11 | 11.2 | 11.2 mg/l |
| 26 Jan 2026, 11:29 | 11.4 | 11.4 mg/l |
| 17 Dec 2025, 15:23 | 10.8 | 10.8 mg/l |
| 10 Mar 2025, 13:07 | 12.1 | 12.1 mg/l |
| 17 Feb 2025, 09:04 | 12.9 | 12.9 mg/l |
| 30 Jan 2025, 10:00 | 12.3 | 12.3 mg/l |
| 19 Nov 2024, 12:19 | 11.9 | 11.9 mg/l |
| 16 Oct 2024, 12:24 | 9.99 | 9.99 mg/l |
| 18 Sep 2024, 09:26 | 8.81 | 8.81 mg/l |
| 30 Aug 2024, 09:33 | 7.24 | 7.24 mg/l |
| 18 Jul 2024, 08:44 | 8.77 | 8.77 mg/l |
| 19 Jun 2024, 10:46 | 9.96 | 9.96 mg/l |
| 17 May 2024, 09:21 | 8.07 | 8.07 mg/l |
| 15 Apr 2024, 12:48 | 10.8 | 10.8 mg/l |
| 19 Mar 2024, 08:37 | 10.4 | 10.4 mg/l |
| 20 Feb 2024, 12:34 | 10.5 | 10.5 mg/l |
| 16 Jan 2024, 10:50 | 12 | 12 mg/l |
| 6 Dec 2023, 13:22 | 12.1 | 12.1 mg/l |
| 21 Nov 2023, 11:24 | 10.4 | 10.4 mg/l |
| 16 Oct 2023, 09:50 | 8.97 | 8.97 mg/l |
Water temperature
code 0076 · °C
15 °C
Sampled 21 May 2026, 4 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 May 2026, 13:28 | 15 | 15 °C |
| 23 Apr 2026, 10:35 | 11.5 | 11.5 °C |
| 11 Mar 2026, 10:05 | 8.8 | 8.8 °C |
| 11 Feb 2026, 10:11 | 7.5 | 7.5 °C |
| 26 Jan 2026, 11:29 | 5.5 | 5.5 °C |
| 17 Dec 2025, 15:23 | 7.1 | 7.1 °C |
| 10 Mar 2025, 13:07 | 8.8 | 8.8 °C |
| 17 Feb 2025, 09:04 | 2.9 | 2.9 °C |
| 30 Jan 2025, 10:00 | 3.5 | 3.5 °C |
| 19 Nov 2024, 12:19 | 6 | 6 °C |
| 16 Oct 2024, 12:24 | 12.5 | 12.5 °C |
| 18 Sep 2024, 09:26 | 14.6 | 14.6 °C |
| 30 Aug 2024, 09:33 | 15 | 15 °C |
| 18 Jul 2024, 08:44 | 17 | 17 °C |
| 19 Jun 2024, 10:46 | 15.1 | 15.1 °C |
| 17 May 2024, 09:21 | 15.8 | 15.8 °C |
| 15 Apr 2024, 12:48 | 11.9 | 11.9 °C |
| 19 Mar 2024, 08:37 | 10 | 10 °C |
| 20 Feb 2024, 12:34 | 9.2 | 9.2 °C |
| 16 Jan 2024, 10:50 | 4.1 | 4.1 °C |
| 6 Dec 2023, 13:22 | 4.3 | 4.3 °C |
| 21 Nov 2023, 11:24 | 9 | 9 °C |
| 16 Oct 2023, 09:50 | 9.5 | 9.5 °C |
pH
code 0061
7.81
Sampled 21 May 2026, 4 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 May 2026, 13:28 | 7.81 | 7.81 |
| 23 Apr 2026, 10:35 | 7.9 | 7.9 |
| 11 Mar 2026, 10:05 | 7.93 | 7.93 |
| 11 Feb 2026, 10:11 | 7.48 | 7.48 |
| 26 Jan 2026, 11:29 | 7.74 | 7.74 |
| 17 Dec 2025, 15:23 | 7.76 | 7.76 |
| 10 Mar 2025, 13:07 | 8.03 | 8.03 |
| 17 Feb 2025, 09:04 | 7.58 | 7.58 |
| 30 Jan 2025, 10:00 | 7.74 | 7.74 |
| 19 Nov 2024, 12:19 | 7.78 | 7.78 |
| 16 Oct 2024, 12:24 | 7.17 | 7.17 |
| 18 Sep 2024, 09:26 | 7.84 | 7.84 |
| 30 Aug 2024, 09:33 | 7.61 | 7.61 |
| 18 Jul 2024, 08:44 | 7.67 | 7.67 |
| 19 Jun 2024, 10:46 | 7.36 | 7.36 |
| 17 May 2024, 09:21 | 7.51 | 7.51 |
| 15 Apr 2024, 12:48 | 7.88 | 7.88 |
| 19 Mar 2024, 08:37 | 7.64 | 7.64 |
| 20 Feb 2024, 12:34 | 7.53 | 7.53 |
| 16 Jan 2024, 10:50 | 7.87 | 7.87 |
| 6 Dec 2023, 13:22 | 7.53 | 7.53 |
| 21 Nov 2023, 11:24 | 7.71 | 7.71 |
| 16 Oct 2023, 09:50 | 7.83 | 7.83 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.036 mg/l
Sampled 21 May 2026, 4 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 May 2026, 13:28 | 0.036 | 0.036 mg/l |
| 23 Apr 2026, 10:35 | 0.037 | 0.037 mg/l |
| 11 Mar 2026, 10:05 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Feb 2026, 10:11 | 0.06 | 0.06 mg/l |
| 26 Jan 2026, 11:29 | 0.077 | 0.077 mg/l |
| 17 Dec 2025, 15:23 | 0.057 | 0.057 mg/l |
| 10 Mar 2025, 13:07 | 0.035 | 0.035 mg/l |
| 17 Feb 2025, 09:04 | 0.07 | 0.07 mg/l |
| 30 Jan 2025, 10:00 | 0.048 | 0.048 mg/l |
| 19 Nov 2024, 12:19 | 0.054 | 0.054 mg/l |
| 16 Oct 2024, 12:24 | 0.038 | 0.038 mg/l |
| 18 Sep 2024, 09:26 | 0.032 | 0.032 mg/l |
| 30 Aug 2024, 09:33 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Jul 2024, 08:44 | 0.051 | 0.051 mg/l |
| 19 Jun 2024, 10:46 | 0.034 | 0.034 mg/l |
| 17 May 2024, 09:21 | 0.12 | 0.12 mg/l |
| 15 Apr 2024, 12:48 | 0.041 | 0.041 mg/l |
| 19 Mar 2024, 08:37 | 0.062 | 0.062 mg/l |
| 20 Feb 2024, 12:34 | 0.093 | 0.093 mg/l |
| 16 Jan 2024, 10:50 | 0.14 | 0.14 mg/l |
| 6 Dec 2023, 13:22 | 0.054 | 0.054 mg/l |
| 21 Nov 2023, 11:24 | 0.053 | 0.053 mg/l |
| 16 Oct 2023, 09:50 | 0.046 | 0.046 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
below 0.196 mg/l (not detected above this)
Sampled 21 May 2026, 4 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 May 2026, 13:28 | <0.196 | below 0.196 mg/l (not detected above this) |
| 23 Apr 2026, 10:35 | <0.196 | below 0.196 mg/l (not detected above this) |
| 11 Mar 2026, 10:05 | 0.544 | 0.544 mg/l |
| 11 Feb 2026, 10:11 | 0.663 | 0.663 mg/l |
| 26 Jan 2026, 11:29 | 0.621 | 0.621 mg/l |
| 17 Dec 2025, 15:23 | 0.481 | 0.481 mg/l |
| 10 Mar 2025, 13:07 | <0.196 | below 0.196 mg/l (not detected above this) |
| 17 Feb 2025, 09:04 | 0.454 | 0.454 mg/l |
| 30 Jan 2025, 10:00 | 0.442 | 0.442 mg/l |
| 19 Nov 2024, 12:19 | 0.431 | 0.431 mg/l |
| 16 Oct 2024, 12:24 | 0.193 | 0.193 mg/l |
| 18 Sep 2024, 09:26 | <0.196 | below 0.196 mg/l (not detected above this) |
| 30 Aug 2024, 09:33 | <0.196 | below 0.196 mg/l (not detected above this) |
| 18 Jul 2024, 08:44 | 0.234 | 0.234 mg/l |
| 19 Jun 2024, 10:46 | <0.196 | below 0.196 mg/l (not detected above this) |
| 17 May 2024, 09:21 | 0.583 | 0.583 mg/l |
| 15 Apr 2024, 12:48 | 0.233 | 0.233 mg/l |
| 19 Mar 2024, 08:37 | 0.409 | 0.409 mg/l |
| 20 Feb 2024, 12:34 | 0.477 | 0.477 mg/l |
| 16 Jan 2024, 10:50 | 0.467 | 0.467 mg/l |
| 6 Dec 2023, 13:22 | 0.679 | 0.679 mg/l |
| 21 Nov 2023, 11:24 | 0.392 | 0.392 mg/l |
| 16 Oct 2023, 09:50 | 0.272 | 0.272 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
below 0.01 mg/l (not detected above this)
Sampled 21 May 2026, 4 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 May 2026, 13:28 | <0.01 | below 0.01 mg/l (not detected above this) |
| 23 Apr 2026, 10:35 | <0.01 | below 0.01 mg/l (not detected above this) |
| 11 Mar 2026, 10:05 | <0.01 | below 0.01 mg/l (not detected above this) |
| 11 Feb 2026, 10:11 | 0.013 | 0.013 mg/l |
| 26 Jan 2026, 11:29 | 0.01 | 0.01 mg/l |
| 17 Dec 2025, 15:23 | 0.012 | 0.012 mg/l |
| 10 Mar 2025, 13:07 | <0.01 | below 0.01 mg/l (not detected above this) |
| 17 Feb 2025, 09:04 | <0.01 | below 0.01 mg/l (not detected above this) |
| 30 Jan 2025, 10:00 | <0.01 | below 0.01 mg/l (not detected above this) |
| 19 Nov 2024, 12:19 | <0.01 | below 0.01 mg/l (not detected above this) |
| 16 Oct 2024, 12:24 | <0.01 | below 0.01 mg/l (not detected above this) |
| 18 Sep 2024, 09:26 | <0.01 | below 0.01 mg/l (not detected above this) |
| 30 Aug 2024, 09:33 | 0.012 | 0.012 mg/l |
| 18 Jul 2024, 08:44 | <0.01 | below 0.01 mg/l (not detected above this) |
| 19 Jun 2024, 10:46 | 0.018 | 0.018 mg/l |
| 17 May 2024, 09:21 | 0.018 | 0.018 mg/l |
| 15 Apr 2024, 12:48 | <0.01 | below 0.01 mg/l (not detected above this) |
| 19 Mar 2024, 08:37 | 0.012 | 0.012 mg/l |
| 20 Feb 2024, 12:34 | 0.015 | 0.015 mg/l |
| 16 Jan 2024, 10:50 | 0.014 | 0.014 mg/l |
| 6 Dec 2023, 13:22 | 0.011 | 0.011 mg/l |
| 21 Nov 2023, 11:24 | 0.039 | 0.039 mg/l |
| 16 Oct 2023, 09:50 | <0.01 | below 0.01 mg/l (not detected above this) |
Conductivity
at 25 °C · code 0077 · µS/cm
1363 µS/cm
Sampled 21 May 2026, 4 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 May 2026, 13:28 | 1363 | 1363 µS/cm |
| 23 Apr 2026, 10:35 | 1311 | 1311 µS/cm |
| 11 Mar 2026, 10:05 | 1226 | 1226 µS/cm |
| 11 Feb 2026, 10:11 | 986 | 986 µS/cm |
| 26 Jan 2026, 11:29 | 1106 | 1106 µS/cm |
| 17 Dec 2025, 15:23 | 947 | 947 µS/cm |
| 10 Mar 2025, 13:07 | 1328 | 1328 µS/cm |
| 17 Feb 2025, 09:04 | 1139 | 1139 µS/cm |
| 30 Jan 2025, 10:00 | 915 | 915 µS/cm |
| 19 Nov 2024, 12:19 | 1137 | 1137 µS/cm |
| 16 Oct 2024, 12:24 | 1187 | 1187 µS/cm |
| 18 Sep 2024, 09:26 | 1349 | 1349 µS/cm |
| 30 Aug 2024, 09:33 | 1416 | 1416 µS/cm |
| 18 Jul 2024, 08:44 | 1074 | 1074 µS/cm |
| 19 Jun 2024, 10:46 | 1164 | 1164 µS/cm |
| 17 May 2024, 09:21 | 1067 | 1067 µS/cm |
| 15 Apr 2024, 12:48 | 872 | 872 µS/cm |
| 19 Mar 2024, 08:37 | 944 | 944 µS/cm |
| 20 Feb 2024, 12:34 | 951 | 951 µS/cm |
| 16 Jan 2024, 10:50 | 1314 | 1314 µS/cm |
| 6 Dec 2023, 13:22 | 781 | 781 µS/cm |
| 21 Nov 2023, 11:24 | 1068 | 1068 µS/cm |
| 16 Oct 2023, 09:50 | 1159 | 1159 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 | Oct 2023 – May 2026 | 88.8% 21 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 23 | Oct 2023 – May 2026 | 8.93 mg/l 21 May 2026 |
| Temperature of Water 0076 | River water | 23 | Oct 2023 – May 2026 | 15 °C 21 May 2026 |
| pH 0061 | River water | 23 | Oct 2023 – May 2026 | 7.81 21 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 23 | Oct 2023 – May 2026 | 0.036 mg/l 21 May 2026 |
| Nitrate as N 0117 | River water | 23 | Oct 2023 – May 2026 | below 0.196 mg/l 21 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 23 | Oct 2023 – May 2026 | below 0.01 mg/l 21 May 2026 |
| Conductivity at 25 C 0077 | River water | 23 | Oct 2023 – May 2026 | 1363 µS/cm 21 May 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 23 | Oct 2023 – May 2026 | 170 mg/l 21 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 23 | Oct 2023 – May 2026 | 0.00062 mg/l 21 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 19 | Feb 2024 – May 2026 | 1.3 mg/l 21 May 2026 |
| Nitrite as N 0118 | River water | 23 | Oct 2023 – May 2026 | below 0.004 mg/l 21 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 23 | Oct 2023 – May 2026 | below 0.2 mg/l 21 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.