Chorley Brook at Mawley Estate
EA name: CHORLEY BROOK AT MAWLEY ESTATE (also listed as “RSN2206 CHORLEY BROOK AT MAWLEY ESTATE”)
Environment Agency sampling point MD-RSN2206 · 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
- 15 Dec 2025, 09:3610 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
- 24 since 25 Jan 2024 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 371221, 280749As published, to the nearest 1 m. Open in a map
- River, by its own name
- Chorley Brook
- River, by the map
- An unnamed streamPlaced by position alone (the only river line close by), 4 m from the line.
- Next gauge downstream
- Bewdley On the River Severn · 16 km along the river
- Why it was sampled
- Monitoring (national agency policy) (24 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
97.2%
Sampled 15 Dec 2025, 10 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Dec 2025, 09:36 | 97.2 | 97.2% |
| 5 Nov 2025, 10:51 | 95.3 | 95.3% |
| 14 Oct 2025, 13:03 | 89.4 | 89.4% |
| 2 Sep 2025, 14:31 | 83.7 | 83.7% |
| 7 Aug 2025, 14:25 | 84.7 | 84.7% |
| 22 Jul 2025, 09:41 | 76.8 | 76.8% |
| 20 Jun 2025, 11:05 | 93.5 | 93.5% |
| 29 May 2025, 12:16 | 84.3 | 84.3% |
| 1 Apr 2025, 12:36 | 96.4 | 96.4% |
| 18 Mar 2025, 12:20 | 100.3 | 100.3% |
| 6 Feb 2025, 12:33 | 100.5 | 100.5% |
| 9 Jan 2025, 12:40 | 98.5 | 98.5% |
| 19 Dec 2024, 12:24 | 97 | 97% |
| 11 Nov 2024, 09:13 | 89 | 89% |
| 7 Oct 2024, 09:17 | 96 | 96% |
| 9 Sep 2024, 11:57 | 94.9 | 94.9% |
| 7 Aug 2024, 11:42 | 87.7 | 87.7% |
| 9 Jul 2024, 12:03 | 96 | 96% |
| 17 Jun 2024, 10:49 | 94.3 | 94.3% |
| 10 May 2024, 16:00 | 97 | 97% |
| 11 Apr 2024, 13:33 | 101.5 | 101.5% |
| 1 Mar 2024, 13:16 | 101.3 | 101.3% |
| 13 Feb 2024, 10:32 | 101.2 | 101.2% |
| 25 Jan 2024, 12:51 | 97.3 | 97.3% |
Dissolved oxygen
as O2 · code 9924 · mg/l
11.2 mg/l
Sampled 15 Dec 2025, 10 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Dec 2025, 09:36 | 11.2 | 11.2 mg/l |
| 5 Nov 2025, 10:51 | 10.2 | 10.2 mg/l |
| 14 Oct 2025, 13:03 | 9.52 | 9.52 mg/l |
| 2 Sep 2025, 14:31 | 8.74 | 8.74 mg/l |
| 7 Aug 2025, 14:25 | 8.53 | 8.53 mg/l |
| 22 Jul 2025, 09:41 | 7.79 | 7.79 mg/l |
| 20 Jun 2025, 11:05 | 9.36 | 9.36 mg/l |
| 29 May 2025, 12:16 | 8.4 | 8.4 mg/l |
| 1 Apr 2025, 12:36 | 10.8 | 10.8 mg/l |
| 18 Mar 2025, 12:20 | 12.1 | 12.1 mg/l |
| 6 Feb 2025, 12:33 | 13.2 | 13.2 mg/l |
| 9 Jan 2025, 12:40 | 13.1 | 13.1 mg/l |
| 19 Dec 2024, 12:24 | 11.7 | 11.7 mg/l |
| 11 Nov 2024, 09:13 | 10.1 | 10.1 mg/l |
| 7 Oct 2024, 09:17 | 10.5 | 10.5 mg/l |
| 9 Sep 2024, 11:57 | 9.65 | 9.65 mg/l |
| 7 Aug 2024, 11:42 | 9.01 | 9.01 mg/l |
| 9 Jul 2024, 12:03 | 9.45 | 9.45 mg/l |
| 17 Jun 2024, 10:49 | 9.87 | 9.87 mg/l |
| 10 May 2024, 16:00 | 9.29 | 9.29 mg/l |
| 11 Apr 2024, 13:33 | 10.5 | 10.5 mg/l |
| 1 Mar 2024, 13:16 | 12.5 | 12.5 mg/l |
| 13 Feb 2024, 10:32 | 12.3 | 12.3 mg/l |
| 25 Jan 2024, 12:51 | 11.7 | 11.7 mg/l |
Water temperature
code 0076 · °C
9 °C
Sampled 15 Dec 2025, 10 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Dec 2025, 09:36 | 9 | 9 °C |
| 5 Nov 2025, 10:51 | 12.4 | 12.4 °C |
| 14 Oct 2025, 13:03 | 12.4 | 12.4 °C |
| 2 Sep 2025, 14:31 | 13.3 | 13.3 °C |
| 7 Aug 2025, 14:25 | 14.9 | 14.9 °C |
| 22 Jul 2025, 09:41 | 14.6 | 14.6 °C |
| 20 Jun 2025, 11:05 | 15.2 | 15.2 °C |
| 29 May 2025, 12:16 | 15.4 | 15.4 °C |
| 1 Apr 2025, 12:36 | 10.2 | 10.2 °C |
| 18 Mar 2025, 12:20 | 7.2 | 7.2 °C |
| 6 Feb 2025, 12:33 | 4 | 4 °C |
| 9 Jan 2025, 12:40 | 3.3 | 3.3 °C |
| 19 Dec 2024, 12:24 | 7.1 | 7.1 °C |
| 11 Nov 2024, 09:13 | 9.5 | 9.5 °C |
| 7 Oct 2024, 09:17 | 11.4 | 11.4 °C |
| 9 Sep 2024, 11:57 | 14.5 | 14.5 °C |
| 7 Aug 2024, 11:42 | 14 | 14 °C |
| 9 Jul 2024, 12:03 | 16 | 16 °C |
| 17 Jun 2024, 10:49 | 13.2 | 13.2 °C |
| 10 May 2024, 16:00 | 17.3 | 17.3 °C |
| 11 Apr 2024, 13:33 | 13.9 | 13.9 °C |
| 1 Mar 2024, 13:16 | 6.4 | 6.4 °C |
| 13 Feb 2024, 10:32 | 6.9 | 6.9 °C |
| 25 Jan 2024, 12:51 | 7.3 | 7.3 °C |
pH
code 0061
7.56
Sampled 15 Dec 2025, 10 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Dec 2025, 09:36 | 7.56 | 7.56 |
| 5 Nov 2025, 10:51 | 7.5 | 7.5 |
| 14 Oct 2025, 13:03 | 7.75 | 7.75 |
| 2 Sep 2025, 14:31 | 7.96 | 7.96 |
| 7 Aug 2025, 14:25 | 7.9 | 7.9 |
| 22 Jul 2025, 09:41 | 7.69 | 7.69 |
| 20 Jun 2025, 11:05 | 7.86 | 7.86 |
| 29 May 2025, 12:16 | 7.74 | 7.74 |
| 1 Apr 2025, 12:36 | 7.8 | 7.8 |
| 18 Mar 2025, 12:20 | 7.9 | 7.9 |
| 6 Feb 2025, 12:33 | 7.99 | 7.99 |
| 9 Jan 2025, 12:40 | 8 | 8 |
| 19 Dec 2024, 12:24 | 7.82 | 7.82 |
| 11 Nov 2024, 09:13 | 7.77 | 7.77 |
| 7 Oct 2024, 09:17 | 7.67 | 7.67 |
| 9 Sep 2024, 11:57 | 7.79 | 7.79 |
| 7 Aug 2024, 11:42 | 7.7 | 7.7 |
| 9 Jul 2024, 12:03 | 7.91 | 7.91 |
| 17 Jun 2024, 10:49 | 7.84 | 7.84 |
| 10 May 2024, 16:00 | 7.84 | 7.84 |
| 11 Apr 2024, 13:33 | 7.94 | 7.94 |
| 1 Mar 2024, 13:16 | 7.72 | 7.72 |
| 13 Feb 2024, 10:32 | 7.79 | 7.79 |
| 25 Jan 2024, 12:51 | 7.76 | 7.76 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.052 mg/l
Sampled 15 Dec 2025, 10 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Dec 2025, 09:36 | 0.052 | 0.052 mg/l |
| 5 Nov 2025, 10:51 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Oct 2025, 13:03 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Sep 2025, 14:31 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Aug 2025, 14:25 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Jul 2025, 09:41 | 0.037 | 0.037 mg/l |
| 20 Jun 2025, 11:05 | <0.03 | below 0.03 mg/l (not detected above this) |
| 29 May 2025, 12:16 | 0.072 | 0.072 mg/l |
| 1 Apr 2025, 12:36 | 0.16 | 0.16 mg/l |
| 18 Mar 2025, 12:20 | 0.13 | 0.13 mg/l |
| 6 Feb 2025, 12:33 | 0.098 | 0.098 mg/l |
| 9 Jan 2025, 12:40 | 0.058 | 0.058 mg/l |
| 19 Dec 2024, 12:24 | 0.074 | 0.074 mg/l |
| 11 Nov 2024, 09:13 | 0.053 | 0.053 mg/l |
| 7 Oct 2024, 09:17 | 0.05 | 0.05 mg/l |
| 9 Sep 2024, 11:57 | 0.1 | 0.1 mg/l |
| 7 Aug 2024, 11:42 | 0.035 | 0.035 mg/l |
| 9 Jul 2024, 12:03 | 0.25 | 0.25 mg/l |
| 17 Jun 2024, 10:49 | 0.032 | 0.032 mg/l |
| 10 May 2024, 16:00 | 0.063 | 0.063 mg/l |
| 11 Apr 2024, 13:33 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Mar 2024, 13:16 | 0.07 | 0.07 mg/l |
| 13 Feb 2024, 10:32 | 0.054 | 0.054 mg/l |
| 25 Jan 2024, 12:51 | 0.047 | 0.047 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
3.59 mg/l
Sampled 15 Dec 2025, 10 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Dec 2025, 09:36 | 3.59 | 3.59 mg/l |
| 5 Nov 2025, 10:51 | 2.79 | 2.79 mg/l |
| 14 Oct 2025, 13:03 | 1.1 | 1.1 mg/l |
| 2 Sep 2025, 14:31 | 1.4 | 1.4 mg/l |
| 7 Aug 2025, 14:25 | 1.5 | 1.5 mg/l |
| 22 Jul 2025, 09:41 | 1.59 | 1.59 mg/l |
| 20 Jun 2025, 11:05 | 1.8 | 1.8 mg/l |
| 29 May 2025, 12:16 | 0.99 | 0.99 mg/l |
| 1 Apr 2025, 12:36 | 2.27 | 2.27 mg/l |
| 18 Mar 2025, 12:20 | 3.77 | 3.77 mg/l |
| 6 Feb 2025, 12:33 | 4.38 | 4.38 mg/l |
| 9 Jan 2025, 12:40 | 5.09 | 5.09 mg/l |
| 19 Dec 2024, 12:24 | 2.98 | 2.98 mg/l |
| 11 Nov 2024, 09:13 | 3.68 | 3.68 mg/l |
| 7 Oct 2024, 09:17 | 3.59 | 3.59 mg/l |
| 9 Sep 2024, 11:57 | 4.77 | 4.77 mg/l |
| 7 Aug 2024, 11:42 | 1.6 | 1.6 mg/l |
| 9 Jul 2024, 12:03 | 0.962 | 0.962 mg/l |
| 17 Jun 2024, 10:49 | 1.48 | 1.48 mg/l |
| 10 May 2024, 16:00 | 3.55 | 3.55 mg/l |
| 11 Apr 2024, 13:33 | 3.79 | 3.79 mg/l |
| 1 Mar 2024, 13:16 | 3.09 | 3.09 mg/l |
| 13 Feb 2024, 10:32 | 6.39 | 6.39 mg/l |
| 25 Jan 2024, 12:51 | 2.19 | 2.19 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.088 mg/l
Sampled 15 Dec 2025, 10 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Dec 2025, 09:36 | 0.088 | 0.088 mg/l |
| 5 Nov 2025, 10:51 | 0.088 | 0.088 mg/l |
| 14 Oct 2025, 13:03 | <0.01 | below 0.01 mg/l (not detected above this) |
| 2 Sep 2025, 14:31 | <0.01 | below 0.01 mg/l (not detected above this) |
| 7 Aug 2025, 14:25 | <0.01 | below 0.01 mg/l (not detected above this) |
| 22 Jul 2025, 09:41 | <0.01 | below 0.01 mg/l (not detected above this) |
| 20 Jun 2025, 11:05 | 0.014 | 0.014 mg/l |
| 29 May 2025, 12:16 | 0.012 | 0.012 mg/l |
| 1 Apr 2025, 12:36 | 0.039 | 0.039 mg/l |
| 18 Mar 2025, 12:20 | 0.023 | 0.023 mg/l |
| 6 Feb 2025, 12:33 | 0.023 | 0.023 mg/l |
| 9 Jan 2025, 12:40 | 0.015 | 0.015 mg/l |
| 19 Dec 2024, 12:24 | 0.058 | 0.058 mg/l |
| 11 Nov 2024, 09:13 | 0.021 | 0.021 mg/l |
| 7 Oct 2024, 09:17 | 0.035 | 0.035 mg/l |
| 9 Sep 2024, 11:57 | 0.052 | 0.052 mg/l |
| 7 Aug 2024, 11:42 | 0.015 | 0.015 mg/l |
| 9 Jul 2024, 12:03 | 0.073 | 0.073 mg/l |
| 17 Jun 2024, 10:49 | 0.025 | 0.025 mg/l |
| 10 May 2024, 16:00 | 0.032 | 0.032 mg/l |
| 11 Apr 2024, 13:33 | 0.023 | 0.023 mg/l |
| 1 Mar 2024, 13:16 | 0.025 | 0.025 mg/l |
| 13 Feb 2024, 10:32 | 0.019 | 0.019 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
281 µS/cm
Sampled 15 Dec 2025, 10 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Dec 2025, 09:36 | 281 | 281 µS/cm |
| 5 Nov 2025, 10:51 | 366 | 366 µS/cm |
| 14 Oct 2025, 13:03 | 545 | 545 µS/cm |
| 2 Sep 2025, 14:31 | 539 | 539 µS/cm |
| 7 Aug 2025, 14:25 | 531 | 531 µS/cm |
| 22 Jul 2025, 09:41 | 535 | 535 µS/cm |
| 20 Jun 2025, 11:05 | 511 | 511 µS/cm |
| 29 May 2025, 12:16 | 444 | 444 µS/cm |
| 1 Apr 2025, 12:36 | 395 | 395 µS/cm |
| 18 Mar 2025, 12:20 | 378 | 378 µS/cm |
| 6 Feb 2025, 12:33 | 341 | 341 µS/cm |
| 9 Jan 2025, 12:40 | 295 | 295 µS/cm |
| 19 Dec 2024, 12:24 | 210 | 210 µS/cm |
| 11 Nov 2024, 09:13 | 363 | 363 µS/cm |
| 7 Oct 2024, 09:17 | 292 | 292 µS/cm |
| 9 Sep 2024, 11:57 | 316 | 316 µS/cm |
| 7 Aug 2024, 11:42 | 472 | 472 µS/cm |
| 9 Jul 2024, 12:03 | 343 | 343 µS/cm |
| 17 Jun 2024, 10:49 | 332 | 332 µS/cm |
| 10 May 2024, 16:00 | 355 | 355 µS/cm |
| 11 Apr 2024, 13:33 | 287 | 287 µS/cm |
| 1 Mar 2024, 13:16 | 290 | 290 µS/cm |
| 13 Feb 2024, 10:32 | 312 | 312 µS/cm |
| 25 Jan 2024, 12:51 | 272 | 272 µS/cm |
Everything measured here
19 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 19 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 24 | Jan 2024 – Dec 2025 | 97.2% 15 Dec 2025 |
| Oxygen, Dissolved as O2 9924 | River water | 24 | Jan 2024 – Dec 2025 | 11.2 mg/l 15 Dec 2025 |
| Temperature of Water 0076 | River water | 24 | Jan 2024 – Dec 2025 | 9 °C 15 Dec 2025 |
| pH 0061 | River water | 24 | Jan 2024 – Dec 2025 | 7.56 15 Dec 2025 |
| Ammoniacal Nitrogen as N 0111 | River water | 24 | Jan 2024 – Dec 2025 | 0.052 mg/l 15 Dec 2025 |
| Nitrate as N 0117 | River water | 24 | Jan 2024 – Dec 2025 | 3.59 mg/l 15 Dec 2025 |
| Orthophosphate, reactive as P 0180 | River water | 23 | Feb 2024 – Dec 2025 | 0.088 mg/l 15 Dec 2025 |
| Conductivity at 25 C 0077 | River water | 24 | Jan 2024 – Dec 2025 | 281 µS/cm 15 Dec 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 24 | Jan 2024 – Dec 2025 | 68 mg/l 15 Dec 2025 |
| Ammonia un-ionised as N 0119 | River water | 24 | Jan 2024 – Dec 2025 | 0.00032 mg/l 15 Dec 2025 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 24 | Jan 2024 – Dec 2025 | 4.4 mg/l 15 Dec 2025 |
| Chloride 0172 | River water | 24 | Jan 2024 – Dec 2025 | 20 mg/l 15 Dec 2025 |
| Flow Type 2896 | River water | 18 | Jul 2024 – Dec 2025 | High Flow 15 Dec 2025 |
| Nitrite as N 0118 | River water | 24 | Jan 2024 – Dec 2025 | 0.0083 mg/l 15 Dec 2025 |
| Nitrogen, Total as N 9686 | River water | 23 | Jan 2024 – Dec 2025 | 4.5 mg/l 15 Dec 2025 |
| Nitrogen, Total Oxidised as N 0116 | River water | 24 | Jan 2024 – Dec 2025 | 3.6 mg/l 15 Dec 2025 |
| Phosphorus, Total as P 0348 | River water | 23 | Jan 2024 – Dec 2025 | 0.17 mg/l 15 Dec 2025 |
| Silica, reactive as SiO2 0182 | River water | 24 | Jan 2024 – Dec 2025 | 8.3 mg/l 15 Dec 2025 |
| Solids, Suspended at 105 C 0135 | River water | 1 | Dec 2025 – Dec 2025 | 43 mg/l 15 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.