Black Brook near Nightingale Farm Langham
EA name: BLACK BK.NEAR NIGHTINGALE FARM LANGHAM
Environment Agency sampling point AN-ST0173 · 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
- 7 Sep 2026, 13:5624 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 29 since 6 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 603004, 232382As published, to the nearest 1 m. Open in a map
- River, by its own name
- Black Brook
- River, by the map
- Black BrookPlaced on the river its name gives, 0 m from the line.
- Next gauge downstream
- None tracedIts water reaches the sea without passing a gauge.
- Why it was sampled
- Planned investigation (national agency policy) (16 samples)
Planned investigation (local monitoring) (7 samples)
Monitoring (national agency policy) (6 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
45.2%
Sampled 7 Sep 2026, 24 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 13:56 | 45.2 | 45.2% |
| 13 Aug 2026, 08:48 | 66.6 | 66.6% |
| 14 Jul 2026, 08:57 | 56.3 | 56.3% |
| 17 Jun 2026, 09:15 | 57 | 57% |
| 5 May 2026, 11:04 | 78.8 | 78.8% |
| 9 Apr 2026, 08:31 | 76.4 | 76.4% |
| 6 Mar 2026, 11:45 | 88.9 | 88.9% |
| 2 Feb 2026, 13:21 | 88.9 | 88.9% |
| 9 Jan 2026, 09:55 | 86.1 | 86.1% |
| 3 Dec 2025, 09:31 | 80.4 | 80.4% |
| 12 Nov 2025, 10:25 | 77.3 | 77.3% |
| 7 Oct 2025, 13:42 | 72.2 | 72.2% |
| 24 Apr 2025, 13:05 | 94.8 | 94.8% |
| 31 Mar 2025, 09:43 | 93.3 | 93.3% |
| 10 Feb 2025, 12:42 | 94.3 | 94.3% |
| 10 Jan 2025, 12:18 | 95.1 | 95.1% |
| 3 Dec 2024, 12:58 | 86.4 | 86.4% |
| 13 Nov 2024, 12:33 | 82.8 | 82.8% |
| 2 Oct 2024, 11:06 | 67.5 | 67.5% |
| 2 Sep 2024, 14:20 | 74.2 | 74.2% |
| 1 Aug 2024, 14:05 | 61.7 | 61.7% |
| 2 Jul 2024, 10:25 | 68.5 | 68.5% |
| 7 Jun 2024, 14:00 | 78.1 | 78.1% |
| 8 Mar 2024, 11:42 | 91.8 | 91.8% |
| 2 Feb 2024, 11:56 | 86.6 | 86.6% |
| 2 Jan 2024, 15:31 | 88 | 88% |
| 12 Dec 2023, 09:56 | 91.1 | 91.1% |
| 6 Nov 2023, 13:36 | 81.1 | 81.1% |
| 6 Oct 2023, 16:07 | 63.5 | 63.5% |
Dissolved oxygen
as O2 · code 9924 · mg/l
4.16 mg/l
Sampled 7 Sep 2026, 24 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 13:56 | 4.16 | 4.16 mg/l |
| 13 Aug 2026, 08:48 | 6.57 | 6.57 mg/l |
| 14 Jul 2026, 08:57 | 5.26 | 5.26 mg/l |
| 17 Jun 2026, 09:15 | 5.58 | 5.58 mg/l |
| 5 May 2026, 11:04 | 8.32 | 8.32 mg/l |
| 9 Apr 2026, 08:31 | 8.53 | 8.53 mg/l |
| 6 Mar 2026, 11:45 | 10.2 | 10.2 mg/l |
| 2 Feb 2026, 13:21 | 10.5 | 10.5 mg/l |
| 9 Jan 2026, 09:55 | 11.1 | 11.1 mg/l |
| 3 Dec 2025, 09:31 | 9.94 | 9.94 mg/l |
| 12 Nov 2025, 10:25 | 8.14 | 8.14 mg/l |
| 7 Oct 2025, 13:42 | 7.41 | 7.41 mg/l |
| 24 Apr 2025, 13:05 | 9.68 | 9.68 mg/l |
| 31 Mar 2025, 09:43 | 11 | 11 mg/l |
| 10 Feb 2025, 12:42 | 11.8 | 11.8 mg/l |
| 10 Jan 2025, 12:18 | 12.4 | 12.4 mg/l |
| 3 Dec 2024, 12:58 | 10.2 | 10.2 mg/l |
| 13 Nov 2024, 12:33 | 9.18 | 9.18 mg/l |
| 2 Oct 2024, 11:06 | 6.91 | 6.91 mg/l |
| 2 Sep 2024, 14:20 | 6.85 | 6.85 mg/l |
| 1 Aug 2024, 14:05 | 5.67 | 5.67 mg/l |
| 2 Jul 2024, 10:25 | 6.92 | 6.92 mg/l |
| 7 Jun 2024, 14:00 | 7.74 | 7.74 mg/l |
| 8 Mar 2024, 11:42 | 10.5 | 10.5 mg/l |
| 2 Feb 2024, 11:56 | 10.1 | 10.1 mg/l |
| 2 Jan 2024, 15:31 | 9.94 | 9.94 mg/l |
| 12 Dec 2023, 09:56 | 10.6 | 10.6 mg/l |
| 6 Nov 2023, 13:36 | 8.9 | 8.9 mg/l |
| 6 Oct 2023, 16:07 | 6.12 | 6.12 mg/l |
Water temperature
code 0076 · °C
19.3 °C
Sampled 7 Sep 2026, 24 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 13:56 | 19.3 | 19.3 °C |
| 13 Aug 2026, 08:48 | 15.9 | 15.9 °C |
| 14 Jul 2026, 08:57 | 18.5 | 18.5 °C |
| 17 Jun 2026, 09:15 | 16.3 | 16.3 °C |
| 5 May 2026, 11:04 | 12.8 | 12.8 °C |
| 9 Apr 2026, 08:31 | 10.4 | 10.4 °C |
| 6 Mar 2026, 11:45 | 9.4 | 9.4 °C |
| 2 Feb 2026, 13:21 | 8.2 | 8.2 °C |
| 9 Jan 2026, 09:55 | 4.7 | 4.7 °C |
| 3 Dec 2025, 09:31 | 6.2 | 6.2 °C |
| 12 Nov 2025, 10:25 | 12.9 | 12.9 °C |
| 7 Oct 2025, 13:42 | 14.1 | 14.1 °C |
| 24 Apr 2025, 13:05 | 14.3 | 14.3 °C |
| 31 Mar 2025, 09:43 | 8.2 | 8.2 °C |
| 10 Feb 2025, 12:42 | 5.7 | 5.7 °C |
| 10 Jan 2025, 12:18 | 4 | 4 °C |
| 3 Dec 2024, 12:58 | 8.2 | 8.2 °C |
| 13 Nov 2024, 12:33 | 10.7 | 10.7 °C |
| 2 Oct 2024, 11:06 | 14.2 | 14.2 °C |
| 2 Sep 2024, 14:20 | 19.1 | 19.1 °C |
| 1 Aug 2024, 14:05 | 19.3 | 19.3 °C |
| 2 Jul 2024, 10:25 | 14.8 | 14.8 °C |
| 7 Jun 2024, 14:00 | 15.7 | 15.7 °C |
| 8 Mar 2024, 11:42 | 9.5 | 9.5 °C |
| 2 Feb 2024, 11:56 | 8.4 | 8.4 °C |
| 2 Jan 2024, 15:31 | 9.9 | 9.9 °C |
| 12 Dec 2023, 09:56 | 8.8 | 8.8 °C |
| 6 Nov 2023, 13:36 | 11.1 | 11.1 °C |
| 6 Oct 2023, 16:07 | 17 | 17 °C |
pH
code 0061
7.38
Sampled 7 Sep 2026, 24 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 13:56 | 7.38 | 7.38 |
| 13 Aug 2026, 08:48 | 7.09 | 7.09 |
| 14 Jul 2026, 08:57 | 7.2 | 7.2 |
| 17 Jun 2026, 09:15 | 7.06 | 7.06 |
| 5 May 2026, 11:04 | 7.12 | 7.12 |
| 9 Apr 2026, 08:31 | 7.25 | 7.25 |
| 6 Mar 2026, 11:45 | 7.46 | 7.46 |
| 2 Feb 2026, 13:21 | 7.49 | 7.49 |
| 9 Jan 2026, 09:55 | 7.29 | 7.29 |
| 3 Dec 2025, 09:31 | 7.63 | 7.63 |
| 12 Nov 2025, 10:25 | 7.51 | 7.51 |
| 7 Oct 2025, 13:42 | 7.01 | 7.01 |
| 24 Apr 2025, 13:05 | 7.62 | 7.62 |
| 31 Mar 2025, 09:43 | 7.62 | 7.62 |
| 10 Feb 2025, 12:42 | 7.42 | 7.42 |
| 10 Jan 2025, 12:18 | 7.85 | 7.85 |
| 3 Dec 2024, 12:58 | 7.41 | 7.41 |
| 13 Nov 2024, 12:33 | 7.48 | 7.48 |
| 2 Oct 2024, 11:06 | 7.3 | 7.3 |
| 2 Sep 2024, 14:20 | 7.51 | 7.51 |
| 1 Aug 2024, 14:05 | 7.64 | 7.64 |
| 2 Jul 2024, 10:25 | 7.21 | 7.21 |
| 7 Jun 2024, 14:00 | 7.4 | 7.4 |
| 8 Mar 2024, 11:42 | 7.61 | 7.61 |
| 2 Feb 2024, 11:56 | 7.47 | 7.47 |
| 2 Jan 2024, 15:31 | 7.43 | 7.43 |
| 12 Dec 2023, 09:56 | 7.6 | 7.6 |
| 6 Nov 2023, 13:36 | 7.45 | 7.45 |
| 6 Oct 2023, 16:07 | 7.35 | 7.35 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
2.6 mg/l
Sampled 7 Sep 2026, 24 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 13:56 | 2.6 | 2.6 mg/l |
| 13 Aug 2026, 08:48 | 0.08 | 0.08 mg/l |
| 14 Jul 2026, 08:57 | 0.12 | 0.12 mg/l |
| 17 Jun 2026, 09:15 | 0.06 | 0.06 mg/l |
| 5 May 2026, 11:04 | 0.065 | 0.065 mg/l |
| 9 Apr 2026, 08:31 | 0.11 | 0.11 mg/l |
| 6 Mar 2026, 11:45 | 0.41 | 0.41 mg/l |
| 2 Feb 2026, 13:21 | 0.64 | 0.64 mg/l |
| 9 Jan 2026, 09:55 | 0.23 | 0.23 mg/l |
| 3 Dec 2025, 09:31 | 0.15 | 0.15 mg/l |
| 12 Nov 2025, 10:25 | 0.048 | 0.048 mg/l |
| 7 Oct 2025, 13:42 | 0.045 | 0.045 mg/l |
| 24 Apr 2025, 13:05 | 0.069 | 0.069 mg/l |
| 31 Mar 2025, 09:43 | 0.039 | 0.039 mg/l |
| 10 Feb 2025, 12:42 | 0.075 | 0.075 mg/l |
| 10 Jan 2025, 12:18 | 0.085 | 0.085 mg/l |
| 3 Dec 2024, 12:58 | 0.065 | 0.065 mg/l |
| 13 Nov 2024, 12:33 | 0.051 | 0.051 mg/l |
| 2 Oct 2024, 11:06 | 2.3 | 2.3 mg/l |
| 2 Sep 2024, 14:20 | 0.045 | 0.045 mg/l |
| 1 Aug 2024, 14:05 | 0.069 | 0.069 mg/l |
| 2 Jul 2024, 10:25 | 0.12 | 0.12 mg/l |
| 7 Jun 2024, 14:00 | 0.68 | 0.68 mg/l |
| 8 Mar 2024, 11:42 | 0.5 | 0.5 mg/l |
| 2 Feb 2024, 11:56 | 0.97 | 0.97 mg/l |
| 2 Jan 2024, 15:31 | 0.25 | 0.25 mg/l |
| 12 Dec 2023, 09:56 | 0.076 | 0.076 mg/l |
| 6 Nov 2023, 13:36 | 0.34 | 0.34 mg/l |
| 6 Oct 2023, 16:07 | 0.36 | 0.36 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
21.5 mg/l
Sampled 7 Sep 2026, 24 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 13:56 | 21.5 | 21.5 mg/l |
| 13 Aug 2026, 08:48 | 27.8 | 27.8 mg/l |
| 14 Jul 2026, 08:57 | 23.8 | 23.8 mg/l |
| 17 Jun 2026, 09:15 | 14.9 | 14.9 mg/l |
| 5 May 2026, 11:04 | 14.9 | 14.9 mg/l |
| 9 Apr 2026, 08:31 | 8.58 | 8.58 mg/l |
| 6 Mar 2026, 11:45 | 8.46 | 8.46 mg/l |
| 2 Feb 2026, 13:21 | 11.9 | 11.9 mg/l |
| 9 Jan 2026, 09:55 | 8.14 | 8.14 mg/l |
| 3 Dec 2025, 09:31 | 9.47 | 9.47 mg/l |
| 12 Nov 2025, 10:25 | 12.9 | 12.9 mg/l |
| 7 Oct 2025, 13:42 | 26.9 | 26.9 mg/l |
| 24 Apr 2025, 13:05 | 11.9 | 11.9 mg/l |
| 31 Mar 2025, 09:43 | 10.9 | 10.9 mg/l |
| 10 Feb 2025, 12:42 | 9.95 | 9.95 mg/l |
| 10 Jan 2025, 12:18 | 11 | 11 mg/l |
| 3 Dec 2024, 12:58 | 11 | 11 mg/l |
| 13 Nov 2024, 12:33 | 14.9 | 14.9 mg/l |
| 2 Oct 2024, 11:06 | 4.71 | 4.71 mg/l |
| 2 Sep 2024, 14:20 | 18.9 | 18.9 mg/l |
| 1 Aug 2024, 14:05 | 17.9 | 17.9 mg/l |
| 2 Jul 2024, 10:25 | 11.8 | 11.8 mg/l |
| 7 Jun 2024, 14:00 | 8.16 | 8.16 mg/l |
| 8 Mar 2024, 11:42 | 9.18 | 9.18 mg/l |
| 2 Feb 2024, 11:56 | 8.43 | 8.43 mg/l |
| 2 Jan 2024, 15:31 | 6.82 | 6.82 mg/l |
| 12 Dec 2023, 09:56 | 8.26 | 8.26 mg/l |
| 6 Nov 2023, 13:36 | 8.79 | 8.79 mg/l |
| 6 Oct 2023, 16:07 | 18.8 | 18.8 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.28 mg/l
Sampled 7 Sep 2026, 24 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 13:56 | 0.28 | 0.28 mg/l |
| 13 Aug 2026, 08:48 | 0.35 | 0.35 mg/l |
| 14 Jul 2026, 08:57 | 0.47 | 0.47 mg/l |
| 17 Jun 2026, 09:15 | 0.22 | 0.22 mg/l |
| 5 May 2026, 11:04 | 0.27 | 0.27 mg/l |
| 9 Apr 2026, 08:31 | 0.14 | 0.14 mg/l |
| 6 Mar 2026, 11:45 | 0.081 | 0.081 mg/l |
| 2 Feb 2026, 13:21 | 0.097 | 0.097 mg/l |
| 9 Jan 2026, 09:55 | 0.12 | 0.12 mg/l |
| 3 Dec 2025, 09:31 | 0.15 | 0.15 mg/l |
| 12 Nov 2025, 10:25 | 0.18 | 0.18 mg/l |
| 7 Oct 2025, 13:42 | 0.4 | 0.4 mg/l |
| 24 Apr 2025, 13:05 | 0.15 | 0.15 mg/l |
| 31 Mar 2025, 09:43 | 0.15 | 0.15 mg/l |
| 10 Feb 2025, 12:42 | 0.1 | 0.1 mg/l |
| 10 Jan 2025, 12:18 | 0.15 | 0.15 mg/l |
| 3 Dec 2024, 12:58 | 0.23 | 0.23 mg/l |
| 13 Nov 2024, 12:33 | 0.36 | 0.36 mg/l |
| 2 Oct 2024, 11:06 | 0.22 | 0.22 mg/l |
| 2 Sep 2024, 14:20 | 0.84 | 0.84 mg/l |
| 1 Aug 2024, 14:05 | 0.73 | 0.73 mg/l |
| 2 Jul 2024, 10:25 | 0.55 | 0.55 mg/l |
| 7 Jun 2024, 14:00 | 0.48 | 0.48 mg/l |
| 8 Mar 2024, 11:42 | 0.32 | 0.32 mg/l |
| 2 Feb 2024, 11:56 | 0.46 | 0.46 mg/l |
| 2 Jan 2024, 15:31 | 0.26 | 0.26 mg/l |
| 12 Dec 2023, 09:56 | 0.25 | 0.25 mg/l |
| 6 Nov 2023, 13:36 | 0.27 | 0.27 mg/l |
| 6 Oct 2023, 16:07 | 2.3 | 2.3 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
1196 µS/cm
Sampled 7 Sep 2026, 24 days ago · 29 results banked
Every result (29)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Sep 2026, 13:56 | 1196 | 1196 µS/cm |
| 13 Aug 2026, 08:48 | 1137 | 1137 µS/cm |
| 14 Jul 2026, 08:57 | 1039 | 1039 µS/cm |
| 17 Jun 2026, 09:15 | 821 | 821 µS/cm |
| 5 May 2026, 11:04 | 790 | 790 µS/cm |
| 9 Apr 2026, 08:31 | 709 | 709 µS/cm |
| 6 Mar 2026, 11:45 | 696 | 696 µS/cm |
| 2 Feb 2026, 13:21 | 706 | 706 µS/cm |
| 9 Jan 2026, 09:55 | 811 | 811 µS/cm |
| 3 Dec 2025, 09:31 | 934 | 934 µS/cm |
| 12 Nov 2025, 10:25 | 1001 | 1001 µS/cm |
| 7 Oct 2025, 13:42 | 1136 | 1136 µS/cm |
| 24 Apr 2025, 13:05 | 725 | 725 µS/cm |
| 31 Mar 2025, 09:43 | 715 | 715 µS/cm |
| 10 Feb 2025, 12:42 | 703 | 703 µS/cm |
| 10 Jan 2025, 12:18 | 705 | 705 µS/cm |
| 3 Dec 2024, 12:58 | 798 | 798 µS/cm |
| 13 Nov 2024, 12:33 | 874 | 874 µS/cm |
| 2 Oct 2024, 11:06 | 739 | 739 µS/cm |
| 2 Sep 2024, 14:20 | 943 | 943 µS/cm |
| 1 Aug 2024, 14:05 | 856 | 856 µS/cm |
| 2 Jul 2024, 10:25 | 772 | 772 µS/cm |
| 7 Jun 2024, 14:00 | 711 | 711 µS/cm |
| 8 Mar 2024, 11:42 | 651 | 651 µS/cm |
| 2 Feb 2024, 11:56 | 693 | 693 µS/cm |
| 2 Jan 2024, 15:31 | 525 | 525 µS/cm |
| 12 Dec 2023, 09:56 | 662 | 662 µS/cm |
| 6 Nov 2023, 13:36 | 680 | 680 µS/cm |
| 6 Oct 2023, 16:07 | 949 | 949 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 | 29 | Oct 2023 – Sep 2026 | 45.2% 7 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 29 | Oct 2023 – Sep 2026 | 4.16 mg/l 7 Sep 2026 |
| Temperature of Water 0076 | River water | 29 | Oct 2023 – Sep 2026 | 19.3 °C 7 Sep 2026 |
| pH 0061 | River water | 29 | Oct 2023 – Sep 2026 | 7.38 7 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 29 | Oct 2023 – Sep 2026 | 2.6 mg/l 7 Sep 2026 |
| Nitrate as N 0117 | River water | 29 | Oct 2023 – Sep 2026 | 21.5 mg/l 7 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 29 | Oct 2023 – Sep 2026 | 0.28 mg/l 7 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 29 | Oct 2023 – Sep 2026 | 1196 µS/cm 7 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 29 | Oct 2023 – Sep 2026 | 120 mg/l 7 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 29 | Oct 2023 – Sep 2026 | 0.023 mg/l 7 Sep 2026 |
| Nitrite as N 0118 | River water | 29 | Oct 2023 – Sep 2026 | 0.55 mg/l 7 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 29 | Oct 2023 – Sep 2026 | 22 mg/l 7 Sep 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.