Whissendine Brook downstream of Cold Overton
EA name: WHISSENDINE BROOK D/S COLD OVERTON (also listed as “WHISSENDINE BROOK DOWNSTREAM OF COLD OVERTON”)
Environment Agency sampling point MD-48426580 · 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
- 29 Jul 2026, 10:002 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 29 since 17 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 481476, 311757As published, to the nearest 1 m. Open in a map
- River, by its own name
- Whissendine Brook
- River, by the map
- Not placedNo mapped watercourse within 500 m. The river map cannot say which watercourse this is.
- Next gauge downstream
- Not known
- Why it was sampled
- Monitoring (national agency policy) (27 samples)
Environmental monitoring statutory (EU directives) (2 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
100.4%
Sampled 16 Dec 2025, 9 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Dec 2025, 14:02 | 100.4 | 100.4% |
| 9 Dec 2025, 09:36 | 98.3 | 98.3% |
| 19 Nov 2025, 12:12 | 93.5 | 93.5% |
| 3 Nov 2025, 12:35 | 75.2 | 75.2% |
| 24 Mar 2025, 10:39 | 104.1 | 104.1% |
| 10 Feb 2025, 11:42 | 99.9 | 99.9% |
| 23 Jan 2025, 11:41 | 98.7 | 98.7% |
| 9 Dec 2024, 10:08 | 98.4 | 98.4% |
| 20 Nov 2024, 08:49 | 93.6 | 93.6% |
| 22 Oct 2024, 10:40 | 93.9 | 93.9% |
| 19 Sep 2024, 11:36 | 91 | 91% |
| 21 Aug 2024, 11:54 | 92.6 | 92.6% |
| 17 Jul 2024, 10:28 | 93 | 93% |
| 20 Jun 2024, 13:50 | 86.7 | 86.7% |
| 20 May 2024, 11:19 | 87.5 | 87.5% |
| 15 Apr 2024, 10:03 | 106.6 | 106.6% |
| 19 Mar 2024, 10:49 | 100.4 | 100.4% |
| 20 Feb 2024, 09:44 | 97.4 | 97.4% |
| 22 Jan 2024, 09:31 | 97.8 | 97.8% |
| 11 Dec 2023, 11:33 | 98.3 | 98.3% |
| 20 Nov 2023, 11:32 | 95.4 | 95.4% |
| 17 Oct 2023, 09:53 | 86.6 | 86.6% |
Dissolved oxygen
as O2 · code 9924 · mg/l
11.8 mg/l
Sampled 16 Dec 2025, 9 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Dec 2025, 14:02 | 11.8 | 11.8 mg/l |
| 9 Dec 2025, 09:36 | 11.3 | 11.3 mg/l |
| 19 Nov 2025, 12:12 | 11.7 | 11.7 mg/l |
| 3 Nov 2025, 12:35 | 8.41 | 8.41 mg/l |
| 24 Mar 2025, 10:39 | 12.2 | 12.2 mg/l |
| 10 Feb 2025, 11:42 | 12.9 | 12.9 mg/l |
| 23 Jan 2025, 11:41 | 12.8 | 12.8 mg/l |
| 9 Dec 2024, 10:08 | 12 | 12 mg/l |
| 20 Nov 2024, 08:49 | 12.5 | 12.5 mg/l |
| 22 Oct 2024, 10:40 | 10.4 | 10.4 mg/l |
| 19 Sep 2024, 11:36 | 9.4 | 9.4 mg/l |
| 21 Aug 2024, 11:54 | 9.39 | 9.39 mg/l |
| 17 Jul 2024, 10:28 | 9.31 | 9.31 mg/l |
| 20 Jun 2024, 13:50 | 8.55 | 8.55 mg/l |
| 20 May 2024, 11:19 | 8.8 | 8.8 mg/l |
| 15 Apr 2024, 10:03 | 12.1 | 12.1 mg/l |
| 19 Mar 2024, 10:49 | 11.4 | 11.4 mg/l |
| 20 Feb 2024, 09:44 | 11.5 | 11.5 mg/l |
| 22 Jan 2024, 09:31 | 12.6 | 12.6 mg/l |
| 11 Dec 2023, 11:33 | 11.9 | 11.9 mg/l |
| 20 Nov 2023, 11:32 | 10.9 | 10.9 mg/l |
| 17 Oct 2023, 09:53 | 10 | 10 mg/l |
Water temperature
code 0076 · °C
8.1 °C
Sampled 16 Dec 2025, 9 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Dec 2025, 14:02 | 8.1 | 8.1 °C |
| 9 Dec 2025, 09:36 | 9 | 9 °C |
| 19 Nov 2025, 12:12 | 5.7 | 5.7 °C |
| 3 Nov 2025, 12:35 | 10.3 | 10.3 °C |
| 24 Mar 2025, 10:39 | 8.4 | 8.4 °C |
| 10 Feb 2025, 11:42 | 4.5 | 4.5 °C |
| 23 Jan 2025, 11:41 | 4.3 | 4.3 °C |
| 9 Dec 2024, 10:08 | 6.7 | 6.7 °C |
| 20 Nov 2024, 08:49 | 3.1 | 3.1 °C |
| 22 Oct 2024, 10:40 | 10.7 | 10.7 °C |
| 19 Sep 2024, 11:36 | 13.8 | 13.8 °C |
| 21 Aug 2024, 11:54 | 14.6 | 14.6 °C |
| 17 Jul 2024, 10:28 | 15.2 | 15.2 °C |
| 20 Jun 2024, 13:50 | 15.9 | 15.9 °C |
| 20 May 2024, 11:19 | 15 | 15 °C |
| 15 Apr 2024, 10:03 | 9.8 | 9.8 °C |
| 19 Mar 2024, 10:49 | 9.7 | 9.7 °C |
| 20 Feb 2024, 09:44 | 8 | 8 °C |
| 22 Jan 2024, 09:31 | 4.5 | 4.5 °C |
| 11 Dec 2023, 11:33 | 7.1 | 7.1 °C |
| 20 Nov 2023, 11:32 | 9.4 | 9.4 °C |
| 17 Oct 2023, 09:53 | 8.8 | 8.8 °C |
pH
code 0061
7.93
Sampled 29 Jul 2026, 2 months ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 29 Jul 2026, 10:00 | 7.93 | 7.93 |
| 20 Apr 2026, 11:01 | 8.2 | 8.2 |
| 19 Feb 2026, 10:34 | 8.1 | 8.1 |
| 16 Dec 2025, 14:02 | 7.75 | 7.75 |
| 9 Dec 2025, 09:36 | 8 | 8 |
| 19 Nov 2025, 12:12 | 7.97 | 7.97 |
| 3 Nov 2025, 12:35 | 7.97 | 7.97 |
| 1 Oct 2025, 11:15 | 8.24 | 8.24 |
| 7 Jul 2025, 12:39 | 8.03 | 8.03 |
| 7 Apr 2025, 09:23 | 8.25 | 8.25 |
| 24 Mar 2025, 10:39 | 8.34 | 8.34 |
| 10 Feb 2025, 11:42 | 8.17 | 8.17 |
| 23 Jan 2025, 11:41 | 8.12 | 8.12 |
| 9 Dec 2024, 10:08 | 7.83 | 7.83 |
| 20 Nov 2024, 08:49 | 8 | 8 |
| 22 Oct 2024, 10:40 | 7.92 | 7.92 |
| 19 Sep 2024, 11:36 | 8.14 | 8.14 |
| 21 Aug 2024, 11:54 | 8.12 | 8.12 |
| 17 Jul 2024, 10:28 | 7.93 | 7.93 |
| 20 Jun 2024, 13:50 | 8.1 | 8.1 |
| 20 May 2024, 11:19 | 8.19 | 8.19 |
| 15 Apr 2024, 10:03 | 8.22 | 8.22 |
| 3 Apr 2024, 14:09 | 8.16 | 8.16 |
| 19 Mar 2024, 10:49 | 8.15 | 8.15 |
| 20 Feb 2024, 09:44 | 8.06 | 8.06 |
| 22 Jan 2024, 09:31 | 8.05 | 8.05 |
| 11 Dec 2023, 11:33 | 7.83 | 7.83 |
| 20 Nov 2023, 11:32 | 7.89 | 7.89 |
| 17 Oct 2023, 09:53 | 7.87 | 7.87 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.058 mg/l
Sampled 16 Dec 2025, 9 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Dec 2025, 14:02 | 0.058 | 0.058 mg/l |
| 9 Dec 2025, 09:36 | 0.042 | 0.042 mg/l |
| 19 Nov 2025, 12:12 | 0.12 | 0.12 mg/l |
| 3 Nov 2025, 12:35 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Mar 2025, 10:39 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Feb 2025, 11:42 | 0.037 | 0.037 mg/l |
| 23 Jan 2025, 11:41 | 0.051 | 0.051 mg/l |
| 9 Dec 2024, 10:08 | 0.074 | 0.074 mg/l |
| 20 Nov 2024, 08:49 | 0.066 | 0.066 mg/l |
| 22 Oct 2024, 10:40 | 0.033 | 0.033 mg/l |
| 19 Sep 2024, 11:36 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Aug 2024, 11:54 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Jul 2024, 10:28 | 0.12 | 0.12 mg/l |
| 20 Jun 2024, 13:50 | 0.08 | 0.08 mg/l |
| 20 May 2024, 11:19 | 0.23 | 0.23 mg/l |
| 15 Apr 2024, 10:03 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Mar 2024, 10:49 | 0.098 | 0.098 mg/l |
| 20 Feb 2024, 09:44 | 0.082 | 0.082 mg/l |
| 22 Jan 2024, 09:31 | 0.23 | 0.23 mg/l |
| 11 Dec 2023, 11:33 | 0.07 | 0.07 mg/l |
| 20 Nov 2023, 11:32 | 0.084 | 0.084 mg/l |
| 17 Oct 2023, 09:53 | 0.23 | 0.23 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
1.79 mg/l
Sampled 16 Dec 2025, 9 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Dec 2025, 14:02 | 1.79 | 1.79 mg/l |
| 9 Dec 2025, 09:36 | 2.18 | 2.18 mg/l |
| 19 Nov 2025, 12:12 | 1.95 | 1.95 mg/l |
| 3 Nov 2025, 12:35 | <0.196 | below 0.196 mg/l (not detected above this) |
| 24 Mar 2025, 10:39 | 1.68 | 1.68 mg/l |
| 10 Feb 2025, 11:42 | 1.99 | 1.99 mg/l |
| 23 Jan 2025, 11:41 | 2.78 | 2.78 mg/l |
| 9 Dec 2024, 10:08 | 2.49 | 2.49 mg/l |
| 20 Nov 2024, 08:49 | 2.68 | 2.68 mg/l |
| 22 Oct 2024, 10:40 | 1.87 | 1.87 mg/l |
| 19 Sep 2024, 11:36 | 0.307 | 0.307 mg/l |
| 21 Aug 2024, 11:54 | 0.253 | 0.253 mg/l |
| 17 Jul 2024, 10:28 | 2.05 | 2.05 mg/l |
| 20 Jun 2024, 13:50 | 1.04 | 1.04 mg/l |
| 20 May 2024, 11:19 | 0.253 | 0.253 mg/l |
| 15 Apr 2024, 10:03 | 2.68 | 2.68 mg/l |
| 19 Mar 2024, 10:49 | 3.28 | 3.28 mg/l |
| 20 Feb 2024, 09:44 | 2.58 | 2.58 mg/l |
| 22 Jan 2024, 09:31 | 3.17 | 3.17 mg/l |
| 11 Dec 2023, 11:33 | 2.19 | 2.19 mg/l |
| 20 Nov 2023, 11:32 | 2.26 | 2.26 mg/l |
| 17 Oct 2023, 09:53 | 0.322 | 0.322 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.18 mg/l
Sampled 16 Dec 2025, 9 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Dec 2025, 14:02 | 0.18 | 0.18 mg/l |
| 9 Dec 2025, 09:36 | 0.12 | 0.12 mg/l |
| 19 Nov 2025, 12:12 | 0.11 | 0.11 mg/l |
| 3 Nov 2025, 12:35 | 0.093 | 0.093 mg/l |
| 24 Mar 2025, 10:39 | 0.017 | 0.017 mg/l |
| 10 Feb 2025, 11:42 | 0.14 | 0.14 mg/l |
| 23 Jan 2025, 11:41 | 0.077 | 0.077 mg/l |
| 20 Nov 2024, 08:49 | 0.15 | 0.15 mg/l |
| 22 Oct 2024, 10:40 | 0.12 | 0.12 mg/l |
| 19 Sep 2024, 11:36 | 0.32 | 0.32 mg/l |
| 21 Aug 2024, 11:54 | 0.43 | 0.43 mg/l |
| 17 Jul 2024, 10:28 | 0.096 | 0.096 mg/l |
| 20 Jun 2024, 13:50 | 0.059 | 0.059 mg/l |
| 20 May 2024, 11:19 | 0.015 | 0.015 mg/l |
| 15 Apr 2024, 10:03 | 0.031 | 0.031 mg/l |
| 19 Mar 2024, 10:49 | 0.052 | 0.052 mg/l |
| 20 Feb 2024, 09:44 | 0.072 | 0.072 mg/l |
| 22 Jan 2024, 09:31 | 0.082 | 0.082 mg/l |
| 11 Dec 2023, 11:33 | 0.084 | 0.084 mg/l |
| 20 Nov 2023, 11:32 | 0.088 | 0.088 mg/l |
| 17 Oct 2023, 09:53 | 0.35 | 0.35 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
267 µS/cm
Sampled 16 Dec 2025, 9 months ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 16 Dec 2025, 14:02 | 267 | 267 µS/cm |
| 9 Dec 2025, 09:36 | 394 | 394 µS/cm |
| 19 Nov 2025, 12:12 | 492 | 492 µS/cm |
| 3 Nov 2025, 12:35 | 838 | 838 µS/cm |
| 24 Mar 2025, 10:39 | 592 | 592 µS/cm |
| 10 Feb 2025, 11:42 | 509 | 509 µS/cm |
| 23 Jan 2025, 11:41 | 622 | 622 µS/cm |
| 9 Dec 2024, 10:08 | 296 | 296 µS/cm |
| 20 Nov 2024, 08:49 | 425 | 425 µS/cm |
| 22 Oct 2024, 10:40 | 413 | 413 µS/cm |
| 19 Sep 2024, 11:36 | 612 | 612 µS/cm |
| 21 Aug 2024, 11:54 | 548 | 548 µS/cm |
| 17 Jul 2024, 10:28 | 476 | 476 µS/cm |
| 20 Jun 2024, 13:50 | 724 | 724 µS/cm |
| 20 May 2024, 11:19 | 627 | 627 µS/cm |
| 15 Apr 2024, 10:03 | 597 | 597 µS/cm |
| 19 Mar 2024, 10:49 | 431 | 431 µS/cm |
| 20 Feb 2024, 09:44 | 425 | 425 µS/cm |
| 22 Jan 2024, 09:31 | 685 | 685 µS/cm |
| 11 Dec 2023, 11:33 | 333 | 333 µS/cm |
| 20 Nov 2023, 11:32 | 432 | 432 µS/cm |
| 17 Oct 2023, 09:53 | 597 | 597 µS/cm |
Everything measured here
17 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 17 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 22 | Oct 2023 – Dec 2025 | 100.4% 16 Dec 2025 |
| Oxygen, Dissolved as O2 9924 | River water | 22 | Oct 2023 – Dec 2025 | 11.8 mg/l 16 Dec 2025 |
| Temperature of Water 0076 | River water | 22 | Oct 2023 – Dec 2025 | 8.1 °C 16 Dec 2025 |
| pH 0061 | River water | 29 | Oct 2023 – Jul 2026 | 7.93 29 Jul 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 22 | Oct 2023 – Dec 2025 | 0.058 mg/l 16 Dec 2025 |
| Nitrate as N 0117 | River water | 22 | Oct 2023 – Dec 2025 | 1.79 mg/l 16 Dec 2025 |
| Orthophosphate, reactive as P 0180 | River water | 21 | Oct 2023 – Dec 2025 | 0.18 mg/l 16 Dec 2025 |
| Conductivity at 25 C 0077 | River water | 22 | Oct 2023 – Dec 2025 | 267 µS/cm 16 Dec 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 22 | Oct 2023 – Dec 2025 | 85 mg/l 16 Dec 2025 |
| Ammonia un-ionised as N 0119 | River water | 22 | Oct 2023 – Dec 2025 | 0.00052 mg/l 16 Dec 2025 |
| BOD : 5 Day ATU 0085 | River water | 17 | Feb 2024 – Dec 2025 | 1.9 mg/l 9 Dec 2025 |
| Calcium, Dissolved 0239 | River water | 12 | Oct 2023 – Jul 2026 | 80 mg/l 29 Jul 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 12 | Oct 2023 – Jul 2026 | 9.1 mg/l 29 Jul 2026 |
| Iron, Dissolved 6460 | River water | 12 | Oct 2023 – Jul 2026 | 45 µg/l 29 Jul 2026 |
| Magnesium, Dissolved 0235 | River water | 12 | Oct 2023 – Jul 2026 | 11 mg/l 29 Jul 2026 |
| Nitrite as N 0118 | River water | 22 | Oct 2023 – Dec 2025 | 0.0067 mg/l 16 Dec 2025 |
| Nitrogen, Total Oxidised as N 0116 | River water | 22 | Oct 2023 – Dec 2025 | 1.8 mg/l 16 Dec 2025 |
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.