Croal Minor 5 m upstream of Captains Clough Brook
EA name: CROAL MINOR 5M U/S OF CAPTAINS CLOUGH BK (also listed as “CROAL MINOR 5M U/S OF CAPTAINS CLOUGH BROOK”)
Environment Agency sampling point NW-88002299 · 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
- 27 Mar 2026, 12:526 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 8 Oct 2026 and had nothing newer.
- Samples banked
- 12 since 24 Apr 2025 Imported periods: 1 Oct 2023 – 8 Oct 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Planned investigation (local monitoring)
- Where
- National Grid 371197, 409290As published, to the nearest 1 m. Open in a map
- River, by its own name
- Croal Minor
- River, by the map
- River CroalPlaced on a river whose name partly matches its own, 11 m from the line.
- Next gauge downstream
- Farnworth On the River Croal · 5.9 km along the river
- Nearest gauge upstream
- Bessy Brook On the Bessy Brook · 4.7 km along the river
- Why it was sampled
- Planned investigation (local monitoring) (12 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
99.6%
Sampled 27 Mar 2026, 6 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 Mar 2026, 12:52 | 99.6 | 99.6% |
| 18 Feb 2026, 11:21 | 99.3 | 99.3% |
| 27 Jan 2026, 10:52 | 98.7 | 98.7% |
| 17 Dec 2025, 09:51 | 98.9 | 98.9% |
| 19 Nov 2025, 10:02 | 98.7 | 98.7% |
| 24 Oct 2025, 08:33 | 97.1 | 97.1% |
| 16 Oct 2025, 09:13 | 96.6 | 96.6% |
| 14 Aug 2025, 12:49 | 84.5 | 84.5% |
| 24 Jul 2025, 10:35 | 90 | 90% |
| 25 Jun 2025, 10:04 | 91.2 | 91.2% |
| 14 May 2025, 10:43 | 91.6 | 91.6% |
| 24 Apr 2025, 10:51 | 97.1 | 97.1% |
Dissolved oxygen
as O2 · code 9924 · mg/l
11.5 mg/l
Sampled 27 Mar 2026, 6 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 Mar 2026, 12:52 | 11.5 | 11.5 mg/l |
| 18 Feb 2026, 11:21 | 12.8 | 12.8 mg/l |
| 27 Jan 2026, 10:52 | 12.5 | 12.5 mg/l |
| 17 Dec 2025, 09:51 | 12 | 12 mg/l |
| 19 Nov 2025, 10:02 | 11.9 | 11.9 mg/l |
| 24 Oct 2025, 08:33 | 11 | 11 mg/l |
| 16 Oct 2025, 09:13 | 10.6 | 10.6 mg/l |
| 14 Aug 2025, 12:49 | 7.9 | 7.9 mg/l |
| 24 Jul 2025, 10:35 | 8.75 | 8.75 mg/l |
| 25 Jun 2025, 10:04 | 9.05 | 9.05 mg/l |
| 14 May 2025, 10:43 | 9.29 | 9.29 mg/l |
| 24 Apr 2025, 10:51 | 10.8 | 10.8 mg/l |
Water temperature
code 0076 · °C
8.8 °C
Sampled 27 Mar 2026, 6 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 Mar 2026, 12:52 | 8.8 | 8.8 °C |
| 18 Feb 2026, 11:21 | 4.5 | 4.5 °C |
| 27 Jan 2026, 10:52 | 5.2 | 5.2 °C |
| 17 Dec 2025, 09:51 | 6.9 | 6.9 °C |
| 19 Nov 2025, 10:02 | 7.1 | 7.1 °C |
| 24 Oct 2025, 08:33 | 9.6 | 9.6 °C |
| 16 Oct 2025, 09:13 | 11.1 | 11.1 °C |
| 14 Aug 2025, 12:49 | 18.5 | 18.5 °C |
| 24 Jul 2025, 10:35 | 16.6 | 16.6 °C |
| 25 Jun 2025, 10:04 | 15.6 | 15.6 °C |
| 14 May 2025, 10:43 | 14.6 | 14.6 °C |
| 24 Apr 2025, 10:51 | 10.4 | 10.4 °C |
pH
code 0061
7.78
Sampled 27 Mar 2026, 6 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 Mar 2026, 12:52 | 7.78 | 7.78 |
| 18 Feb 2026, 11:21 | 7.83 | 7.83 |
| 27 Jan 2026, 10:52 | 7.74 | 7.74 |
| 17 Dec 2025, 09:51 | 7.82 | 7.82 |
| 19 Nov 2025, 10:02 | 7.83 | 7.83 |
| 24 Oct 2025, 08:33 | 7.83 | 7.83 |
| 16 Oct 2025, 09:13 | 7.9 | 7.9 |
| 14 Aug 2025, 12:49 | 7.63 | 7.63 |
| 24 Jul 2025, 10:35 | 7.76 | 7.76 |
| 25 Jun 2025, 10:04 | 7.69 | 7.69 |
| 14 May 2025, 10:43 | 8.08 | 8.08 |
| 24 Apr 2025, 10:51 | 7.84 | 7.84 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.16 mg/l
Sampled 27 Mar 2026, 6 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 Mar 2026, 12:52 | 0.16 | 0.16 mg/l |
| 18 Feb 2026, 11:21 | 0.26 | 0.26 mg/l |
| 27 Jan 2026, 10:52 | 0.13 | 0.13 mg/l |
| 17 Dec 2025, 09:51 | 0.14 | 0.14 mg/l |
| 19 Nov 2025, 10:02 | 0.082 | 0.082 mg/l |
| 24 Oct 2025, 08:33 | 0.14 | 0.14 mg/l |
| 16 Oct 2025, 09:13 | 0.085 | 0.085 mg/l |
| 14 Aug 2025, 12:49 | 0.13 | 0.13 mg/l |
| 24 Jul 2025, 10:35 | 0.11 | 0.11 mg/l |
| 25 Jun 2025, 10:04 | 0.11 | 0.11 mg/l |
| 14 May 2025, 10:43 | 0.21 | 0.21 mg/l |
| 24 Apr 2025, 10:51 | 0.13 | 0.13 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
1.27 mg/l
Sampled 27 Mar 2026, 6 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 Mar 2026, 12:52 | 1.27 | 1.27 mg/l |
| 18 Feb 2026, 11:21 | 1.68 | 1.68 mg/l |
| 27 Jan 2026, 10:52 | 1.08 | 1.08 mg/l |
| 17 Dec 2025, 09:51 | 1.58 | 1.58 mg/l |
| 19 Nov 2025, 10:02 | 1.38 | 1.38 mg/l |
| 24 Oct 2025, 08:33 | 1.18 | 1.18 mg/l |
| 16 Oct 2025, 09:13 | 1.47 | 1.47 mg/l |
| 14 Aug 2025, 12:49 | 0.748 | 0.748 mg/l |
| 24 Jul 2025, 10:35 | 0.938 | 0.938 mg/l |
| 25 Jun 2025, 10:04 | 1.06 | 1.06 mg/l |
| 14 May 2025, 10:43 | 0.617 | 0.617 mg/l |
| 24 Apr 2025, 10:51 | 1.07 | 1.07 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.053 mg/l
Sampled 27 Mar 2026, 6 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 Mar 2026, 12:52 | 0.053 | 0.053 mg/l |
| 18 Feb 2026, 11:21 | 0.053 | 0.053 mg/l |
| 27 Jan 2026, 10:52 | 0.053 | 0.053 mg/l |
| 17 Dec 2025, 09:51 | 0.059 | 0.059 mg/l |
| 19 Nov 2025, 10:02 | 0.049 | 0.049 mg/l |
| 24 Oct 2025, 08:33 | 0.071 | 0.071 mg/l |
| 16 Oct 2025, 09:13 | 0.071 | 0.071 mg/l |
| 14 Aug 2025, 12:49 | 0.13 | 0.13 mg/l |
| 24 Jul 2025, 10:35 | 0.1 | 0.1 mg/l |
| 25 Jun 2025, 10:04 | 0.099 | 0.099 mg/l |
| 14 May 2025, 10:43 | 0.047 | 0.047 mg/l |
| 24 Apr 2025, 10:51 | 0.057 | 0.057 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
402 µS/cm
Sampled 27 Mar 2026, 6 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 Mar 2026, 12:52 | 402 | 402 µS/cm |
| 18 Feb 2026, 11:21 | 389 | 389 µS/cm |
| 27 Jan 2026, 10:52 | 294 | 294 µS/cm |
| 17 Dec 2025, 09:51 | 459 | 459 µS/cm |
| 19 Nov 2025, 10:02 | 586 | 586 µS/cm |
| 24 Oct 2025, 08:33 | 266 | 266 µS/cm |
| 16 Oct 2025, 09:13 | 400 | 400 µS/cm |
| 14 Aug 2025, 12:49 | 353 | 353 µS/cm |
| 24 Jul 2025, 10:35 | 369 | 369 µS/cm |
| 25 Jun 2025, 10:04 | 359 | 359 µS/cm |
| 14 May 2025, 10:43 | 619 | 619 µS/cm |
| 24 Apr 2025, 10:51 | 404 | 404 µS/cm |
Everything measured here
15 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 15 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 12 | Apr 2025 – Mar 2026 | 99.6% 27 Mar 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 12 | Apr 2025 – Mar 2026 | 11.5 mg/l 27 Mar 2026 |
| Temperature of Water 0076 | River water | 12 | Apr 2025 – Mar 2026 | 8.8 °C 27 Mar 2026 |
| pH 0061 | River water | 12 | Apr 2025 – Mar 2026 | 7.78 27 Mar 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 12 | Apr 2025 – Mar 2026 | 0.16 mg/l 27 Mar 2026 |
| Nitrate as N 0117 | River water | 12 | Apr 2025 – Mar 2026 | 1.27 mg/l 27 Mar 2026 |
| Orthophosphate, reactive as P 0180 | River water | 12 | Apr 2025 – Mar 2026 | 0.053 mg/l 27 Mar 2026 |
| Conductivity at 25 C 0077 | River water | 12 | Apr 2025 – Mar 2026 | 402 µS/cm 27 Mar 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 12 | Apr 2025 – Mar 2026 | 87 mg/l 27 Mar 2026 |
| Ammonia un-ionised as N 0119 | River water | 12 | Apr 2025 – Mar 2026 | 0.00162 mg/l 27 Mar 2026 |
| BOD : 5 Day ATU 0085 | River water | 12 | Apr 2025 – Mar 2026 | 2.4 mg/l 27 Mar 2026 |
| Chloride 0172 | River water | 12 | Apr 2025 – Mar 2026 | 54 mg/l 27 Mar 2026 |
| Nitrite as N 0118 | River water | 12 | Apr 2025 – Mar 2026 | 0.026 mg/l 27 Mar 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 12 | Apr 2025 – Mar 2026 | 1.3 mg/l 27 Mar 2026 |
| Solids, Suspended at 105 C 0135 | River water | 12 | Apr 2025 – Mar 2026 | 17 mg/l 27 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.