River Onny at Linley
EA name: RIVER ONNY AT LINLEY
Environment Agency sampling point MD-19234410 · 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
- 28 Aug 2026, 10:5034 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 41 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 334905, 292759As published, to the nearest 1 m. Open in a map
- River, by its own name
- Onny
- River, by the map
- River West OnnyOn a small stream traced into the river its name gives, 2 m from the line.
- Next gauge downstream
- Onibury On the River Onny · 25 km along the river
- Why it was sampled
- Monitoring (national agency policy) (41 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
91.5%
Sampled 28 Aug 2026, 34 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 Aug 2026, 10:50 | 91.5 | 91.5% |
| 27 Jul 2026, 11:10 | 90.1 | 90.1% |
| 30 Jun 2026, 10:50 | 94.8 | 94.8% |
| 18 May 2026, 10:55 | 104.4 | 104.4% |
| 27 Apr 2026, 11:10 | 105.9 | 105.9% |
| 23 Mar 2026, 10:33 | 104.5 | 104.5% |
| 4 Mar 2026, 10:21 | 103.7 | 103.7% |
| 30 Jan 2026, 11:10 | 102.3 | 102.3% |
| 18 Dec 2025, 11:11 | 100.9 | 100.9% |
| 25 Nov 2025, 10:33 | 100.1 | 100.1% |
| 29 Oct 2025, 11:23 | 102.5 | 102.5% |
| 30 Sep 2025, 11:54 | 103.4 | 103.4% |
| 29 Aug 2025, 10:55 | 102 | 102% |
| 30 Jul 2025, 11:15 | 98.4 | 98.4% |
| 27 Jun 2025, 10:40 | 92.3 | 92.3% |
| 29 May 2025, 10:03 | 89.1 | 89.1% |
| 25 Apr 2025, 10:50 | 107.3 | 107.3% |
| 27 Mar 2025, 10:57 | 108.1 | 108.1% |
| 28 Feb 2025, 11:17 | 103.8 | 103.8% |
| 18 Dec 2024, 10:18 | 100.8 | 100.8% |
| 21 Nov 2024, 11:22 | 101.1 | 101.1% |
| 1 Nov 2024, 09:56 | 98.5 | 98.5% |
| 24 Sep 2024, 10:45 | 99.6 | 99.6% |
| 22 Aug 2024, 10:09 | 97.8 | 97.8% |
| 25 Jul 2024, 10:38 | 99.8 | 99.8% |
| 27 Jun 2024, 10:03 | 99 | 99% |
| 23 May 2024, 14:33 | 99.1 | 99.1% |
| 4 Apr 2024, 09:44 | 101.6 | 101.6% |
Water temperature
code 0076 · °C
15.4 °C
Sampled 28 Aug 2026, 34 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 Aug 2026, 10:50 | 15.4 | 15.4 °C |
| 27 Jul 2026, 11:10 | 16.8 | 16.8 °C |
| 30 Jun 2026, 10:50 | 19.5 | 19.5 °C |
| 18 May 2026, 10:55 | 11.1 | 11.1 °C |
| 27 Apr 2026, 11:10 | 11.6 | 11.6 °C |
| 23 Mar 2026, 10:33 | 6.7 | 6.7 °C |
| 4 Mar 2026, 10:21 | 7 | 7 °C |
| 30 Jan 2026, 11:10 | 5.7 | 5.7 °C |
| 18 Dec 2025, 11:11 | 8 | 8 °C |
| 25 Nov 2025, 10:33 | 6.1 | 6.1 °C |
| 29 Oct 2025, 11:23 | 9.3 | 9.3 °C |
| 30 Sep 2025, 11:54 | 9.4 | 9.4 °C |
| 29 Aug 2025, 10:55 | 15.1 | 15.1 °C |
| 30 Jul 2025, 11:15 | 16.5 | 16.5 °C |
| 27 Jun 2025, 10:40 | 17.6 | 17.6 °C |
| 29 May 2025, 10:03 | 14.4 | 14.4 °C |
| 25 Apr 2025, 10:50 | 9.3 | 9.3 °C |
| 27 Mar 2025, 10:57 | 10.1 | 10.1 °C |
| 28 Feb 2025, 11:17 | 4.7 | 4.7 °C |
| 18 Dec 2024, 10:18 | 9.5 | 9.5 °C |
| 21 Nov 2024, 11:22 | 1.6 | 1.6 °C |
| 1 Nov 2024, 09:56 | 10.2 | 10.2 °C |
| 24 Sep 2024, 10:45 | 12.2 | 12.2 °C |
| 22 Aug 2024, 10:09 | 14.6 | 14.6 °C |
| 25 Jul 2024, 10:38 | 15.8 | 15.8 °C |
| 27 Jun 2024, 10:03 | 15.9 | 15.9 °C |
| 23 May 2024, 14:33 | 11.7 | 11.7 °C |
| 4 Apr 2024, 09:44 | 8.2 | 8.2 °C |
pH
code 0061
7.7
Sampled 28 Aug 2026, 34 days ago · 40 results banked
Every result (40)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 Aug 2026, 10:50 | 7.7 | 7.7 |
| 27 Jul 2026, 11:10 | 7.8 | 7.8 |
| 30 Jun 2026, 10:50 | 7.8 | 7.8 |
| 18 May 2026, 10:55 | 7.9 | 7.9 |
| 27 Apr 2026, 11:10 | 7.9 | 7.9 |
| 23 Mar 2026, 10:33 | 7.7 | 7.7 |
| 4 Mar 2026, 10:21 | 7.6 | 7.6 |
| 30 Jan 2026, 11:10 | 7.5 | 7.5 |
| 18 Dec 2025, 11:11 | 7.4 | 7.4 |
| 25 Nov 2025, 10:33 | 7.4 | 7.4 |
| 29 Oct 2025, 11:23 | 7.6 | 7.6 |
| 30 Sep 2025, 11:54 | 7.9 | 7.9 |
| 29 Aug 2025, 10:55 | 7.9 | 7.9 |
| 30 Jul 2025, 11:15 | 7.9 | 7.9 |
| 27 Jun 2025, 10:40 | 7.9 | 7.9 |
| 29 May 2025, 10:03 | 7.6 | 7.6 |
| 25 Apr 2025, 10:50 | 8.1 | 8.1 |
| 27 Mar 2025, 10:57 | 8.2 | 8.2 |
| 28 Feb 2025, 11:17 | 8 | 8 |
| 18 Dec 2024, 10:18 | 7.6 | 7.6 |
| 21 Nov 2024, 11:22 | 7.7 | 7.7 |
| 1 Nov 2024, 09:56 | 7.7 | 7.7 |
| 24 Sep 2024, 10:45 | 7.77 | 7.77 |
| 22 Aug 2024, 10:09 | 7.87 | 7.87 |
| 25 Jul 2024, 10:38 | 7.71 | 7.71 |
| 27 Jun 2024, 10:03 | 7.91 | 7.91 |
| 23 May 2024, 14:33 | 8 | 8 |
| 12 Apr 2024, 10:27 | 7.67 | 7.67 |
| 4 Apr 2024, 09:44 | 7.87 | 7.87 |
| 14 Mar 2024, 09:14 | 7.61 | 7.61 |
| 27 Feb 2024, 12:14 | 7.54 | 7.54 |
| 13 Feb 2024, 11:23 | 7.49 | 7.49 |
| 23 Jan 2024, 08:34 | 7.58 | 7.58 |
| 16 Jan 2024, 12:44 | 7.67 | 7.67 |
| 27 Dec 2023, 12:18 | 7.51 | 7.51 |
| 18 Dec 2023, 11:26 | 7.43 | 7.43 |
| 20 Nov 2023, 12:16 | 7.4 | 7.4 |
| 7 Nov 2023, 13:22 | 7.42 | 7.42 |
| 16 Oct 2023, 10:27 | 7.86 | 7.86 |
| 6 Oct 2023, 12:27 | 7.81 | 7.81 |
Conductivity
at 25 °C · code 0077 · µS/cm
268 µS/cm
Sampled 28 Aug 2026, 34 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 Aug 2026, 10:50 | 268 | 268 µS/cm |
| 27 Jul 2026, 11:10 | 310 | 310 µS/cm |
| 30 Jun 2026, 10:50 | 222 | 222 µS/cm |
| 18 May 2026, 10:55 | 197 | 197 µS/cm |
| 27 Apr 2026, 11:10 | 190 | 190 µS/cm |
| 23 Mar 2026, 10:33 | 161 | 161 µS/cm |
| 4 Mar 2026, 10:21 | 148 | 148 µS/cm |
| 30 Jan 2026, 11:10 | 128 | 128 µS/cm |
| 18 Dec 2025, 11:11 | 138 | 138 µS/cm |
| 25 Nov 2025, 10:33 | 143 | 143 µS/cm |
| 29 Oct 2025, 11:23 | 207 | 207 µS/cm |
| 30 Sep 2025, 11:54 | 252 | 252 µS/cm |
| 29 Aug 2025, 10:55 | 258 | 258 µS/cm |
| 30 Jul 2025, 11:15 | 251 | 251 µS/cm |
| 27 Jun 2025, 10:40 | 227 | 227 µS/cm |
| 29 May 2025, 10:03 | 217 | 217 µS/cm |
| 25 Apr 2025, 10:50 | 205 | 205 µS/cm |
| 27 Mar 2025, 10:57 | 181 | 181 µS/cm |
| 28 Feb 2025, 11:17 | 155 | 155 µS/cm |
| 18 Dec 2024, 10:18 | 160 | 160 µS/cm |
| 21 Nov 2024, 11:22 | 193 | 193 µS/cm |
| 1 Nov 2024, 09:56 | 144 | 144 µS/cm |
| 24 Sep 2024, 10:45 | 163 | 163 µS/cm |
| 22 Aug 2024, 10:09 | 224 | 224 µS/cm |
| 25 Jul 2024, 10:38 | 190 | 190 µS/cm |
| 27 Jun 2024, 10:03 | 174 | 174 µS/cm |
| 23 May 2024, 14:33 | 129 | 129 µS/cm |
| 4 Apr 2024, 09:44 | 125 | 125 µS/cm |
Everything measured here
78 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 78 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 28 | Apr 2024 – Aug 2026 | 91.5% 28 Aug 2026 |
| Temperature of Water 0076 | River water | 28 | Apr 2024 – Aug 2026 | 15.4 °C 28 Aug 2026 |
| pH 0061 | River water | 40 | Oct 2023 – Aug 2026 | 7.7 28 Aug 2026 |
| Conductivity at 25 C 0077 | River water | 28 | Apr 2024 – Aug 2026 | 268 µS/cm 28 Aug 2026 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 1 | Aug 2025 – Aug 2025 | below 0.001 µg/l 29 Aug 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 | River water | 1 | Aug 2025 – Aug 2025 | below 0.001 µg/l 29 Aug 2025 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 1 | Aug 2025 – Aug 2025 | below 0.001 µg/l 29 Aug 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 | River water | 1 | Aug 2025 – Aug 2025 | below 0.0005 µg/l 29 Aug 2025 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 1 | Aug 2025 – Aug 2025 | below 0.0005 µg/l 29 Aug 2025 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 1 | Aug 2025 – Aug 2025 | below 0.001 µg/l 29 Aug 2025 |
| 3-Perfluoroheptylpropanoic acid 2925 | River water | 1 | Aug 2025 – Aug 2025 | below 0.0005 µg/l 29 Aug 2025 |
| 3:3 Fluorotelomer carboxylic acid 2926 | River water | 1 | Aug 2025 – Aug 2025 | below 0.004 µg/l 29 Aug 2025 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 1 | Aug 2025 – Aug 2025 | below 0.001 µg/l 29 Aug 2025 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 1 | Aug 2025 – Aug 2025 | below 0.0005 µg/l 29 Aug 2025 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 1 | Aug 2025 – Aug 2025 | 0.0031 µg/l 29 Aug 2025 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 1 | Aug 2025 – Aug 2025 | below 0.001 µg/l 29 Aug 2025 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 1 | Aug 2025 – Aug 2025 | below 0.0005 µg/l 29 Aug 2025 |
| Aluminium, Dissolved 6037 | River water | 12 | Oct 2023 – Apr 2024 | 52 µg/l 12 Apr 2024 |
| Barium, Dissolved 9446 | River water | 27 | Apr 2024 – Aug 2026 | 120 µg/l 28 Aug 2026 |
| Boron, Dissolved 9447 | River water | 27 | Apr 2024 – Aug 2026 | below 100 µg/l 28 Aug 2026 |
| Cadmium 0108 | River water | 28 | Apr 2024 – Aug 2026 | 0.4 µg/l 28 Aug 2026 |
| Cadmium, Dissolved 0106 | River water | 39 | Oct 2023 – Aug 2026 | 0.24 µg/l 28 Aug 2026 |
| Calcium, Dissolved 0239 | River water | 39 | Oct 2023 – Aug 2026 | 25 mg/l 28 Aug 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 39 | Oct 2023 – Aug 2026 | 5.6 mg/l 28 Aug 2026 |
| Chromium, Dissolved 3409 | River water | 12 | Oct 2023 – Apr 2024 | below 0.5 µg/l 12 Apr 2024 |
| Copper 6452 | River water | 28 | Apr 2024 – Aug 2026 | 1.9 µg/l 28 Aug 2026 |
| Copper, Dissolved 6450 | River water | 39 | Oct 2023 – Aug 2026 | 1.5 µg/l 28 Aug 2026 |
| Hardness, Total as CaCO3 0158 | River water | 39 | Oct 2023 – Aug 2026 | 89.6 mg/l 28 Aug 2026 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 1 | Aug 2025 – Aug 2025 | below 0.001 µg/l 29 Aug 2025 |
| Iron, Dissolved 6460 | River water | 27 | Apr 2024 – Aug 2026 | 190 µg/l 28 Aug 2026 |
| Lead 0050 | River water | 28 | Apr 2024 – Aug 2026 | 9.4 µg/l 28 Aug 2026 |
| Lead, Dissolved 0052 | River water | 39 | Oct 2023 – Aug 2026 | 5 µg/l 28 Aug 2026 |
| Lithium, Dissolved 4201 | River water | 27 | Apr 2024 – Aug 2026 | below 100 µg/l 28 Aug 2026 |
| Magnesium, Dissolved 0235 | River water | 39 | Oct 2023 – Aug 2026 | 6.6 mg/l 28 Aug 2026 |
| Manganese, Dissolved 6458 | River water | 27 | Apr 2024 – Aug 2026 | 32 µg/l 28 Aug 2026 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 1 | Aug 2025 – Aug 2025 | below 0.002 µg/l 29 Aug 2025 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 1 | Aug 2025 – Aug 2025 | below 0.002 µg/l 29 Aug 2025 |
| Nickel 6462 | River water | 28 | Apr 2024 – Aug 2026 | 1.4 µg/l 28 Aug 2026 |
| Nickel, Dissolved 3410 | River water | 39 | Oct 2023 – Aug 2026 | 1.3 µg/l 28 Aug 2026 |
| Perfluoro(2-ethoxyethane)sulfonic acid 2924 | River water | 1 | Aug 2025 – Aug 2025 | below 0.0005 µg/l 29 Aug 2025 |
| Perfluoro(4-methoxybutanoic) acid 2923 | River water | 1 | Aug 2025 – Aug 2025 | below 0.0005 µg/l 29 Aug 2025 |
| Perfluoro-3,6-dioxaheptanoic acid 2922 | River water | 1 | Aug 2025 – Aug 2025 | below 0.0005 µg/l 29 Aug 2025 |
| Perfluoro-3-methoxypropanoic acid 2921 | River water | 1 | Aug 2025 – Aug 2025 | below 0.0005 µg/l 29 Aug 2025 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 1 | Aug 2025 – Aug 2025 | below 0.0005 µg/l 29 Aug 2025 |
| Perfluorobutanesulfonic acid 2972 | River water | 1 | Aug 2025 – Aug 2025 | below 0.001 µg/l 29 Aug 2025 |
| Perfluorobutanoic acid 2995 | River water | 1 | Aug 2025 – Aug 2025 | 0.0012 µg/l 29 Aug 2025 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 1 | Aug 2025 – Aug 2025 | below 0.0005 µg/l 29 Aug 2025 |
| Perfluorodecanesulfonic acid 2969 | River water | 1 | Aug 2025 – Aug 2025 | below 0.001 µg/l 29 Aug 2025 |
| Perfluorodecanoic acid 8892 | River water | 1 | Aug 2025 – Aug 2025 | below 0.001 µg/l 29 Aug 2025 |
| Perfluorododecane sulfonic acid 2968 | River water | 1 | Aug 2025 – Aug 2025 | below 0.005 µg/l 29 Aug 2025 |
| Perfluorododecanoic acid 8894 | River water | 1 | Aug 2025 – Aug 2025 | below 0.002 µg/l 29 Aug 2025 |
| Perfluoroheptanesulfonic acid 2967 | River water | 1 | Aug 2025 – Aug 2025 | below 0.0005 µg/l 29 Aug 2025 |
| Perfluoroheptanoic acid 8889 | River water | 1 | Aug 2025 – Aug 2025 | below 0.001 µg/l 29 Aug 2025 |
| Perfluorohexanesulfonamide 2965 | River water | 1 | Aug 2025 – Aug 2025 | below 0.0005 µg/l 29 Aug 2025 |
| Perfluorohexanesulfonic acid (B) 2944 | River water | 1 | Aug 2025 – Aug 2025 | below 0.0005 µg/l 29 Aug 2025 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 1 | Aug 2025 – Aug 2025 | below 0.0005 µg/l 29 Aug 2025 |
| Perfluorohexanoic acid 8888 | River water | 1 | Aug 2025 – Aug 2025 | below 0.0005 µg/l 29 Aug 2025 |
| Perfluorononanesulfonic acid 2963 | River water | 1 | Aug 2025 – Aug 2025 | below 0.0005 µg/l 29 Aug 2025 |
| Perfluorononanoic acid 8891 | River water | 1 | Aug 2025 – Aug 2025 | below 0.001 µg/l 29 Aug 2025 |
| Perfluorooctadecanoic acid 2962 | River water | 1 | Aug 2025 – Aug 2025 | below 0.002 µg/l 29 Aug 2025 |
| Perfluorooctanesulfonamide 2961 | River water | 1 | Aug 2025 – Aug 2025 | below 0.001 µg/l 29 Aug 2025 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 1 | Aug 2025 – Aug 2025 | below 0.0005 µg/l 29 Aug 2025 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 1 | Aug 2025 – Aug 2025 | below 0.0005 µg/l 29 Aug 2025 |
| Perfluorooctanoic acid 8890 | River water | 1 | Aug 2025 – Aug 2025 | below 0.0005 µg/l 29 Aug 2025 |
| Perfluoropentanesulfonic acid 2957 | River water | 1 | Aug 2025 – Aug 2025 | below 0.0005 µg/l 29 Aug 2025 |
| Perfluoropentanoic acid 8887 | River water | 1 | Aug 2025 – Aug 2025 | below 0.001 µg/l 29 Aug 2025 |
| Perfluorotetradecanoic acid 8895 | River water | 1 | Aug 2025 – Aug 2025 | below 0.006 µg/l 29 Aug 2025 |
| Perfluorotridecanoic acid 2955 | River water | 1 | Aug 2025 – Aug 2025 | below 0.002 µg/l 29 Aug 2025 |
| Perfluoroundecane sulfonic acid 2953 | River water | 1 | Aug 2025 – Aug 2025 | below 0.004 µg/l 29 Aug 2025 |
| Perfluoroundecanoic acid 8893 | River water | 1 | Aug 2025 – Aug 2025 | below 0.001 µg/l 29 Aug 2025 |
| pH : In Situ 3169 | River water | 20 | Dec 2024 – Aug 2026 | 7.52 28 Aug 2026 |
| Potassium, Dissolved 0209 | River water | 27 | Apr 2024 – Aug 2026 | 2.9 mg/l 28 Aug 2026 |
| Sodium, Dissolved 0205 | River water | 27 | Apr 2024 – Aug 2026 | 17 mg/l 28 Aug 2026 |
| Solids, Suspended at 105 C 0135 | River water | 28 | Apr 2024 – Aug 2026 | 3 mg/l 28 Aug 2026 |
| Strontium, Filtered 6693 | River water | 27 | Apr 2024 – Aug 2026 | 77 µg/l 28 Aug 2026 |
| Sulphate, Dissolved as SO4 7859 | River water | 27 | Apr 2024 – Aug 2026 | 20 mg/l 28 Aug 2026 |
| Zinc 6455 | River water | 28 | Apr 2024 – Aug 2026 | 25 µg/l 28 Aug 2026 |
| Zinc, Dissolved 3408 | River water | 39 | Oct 2023 – Aug 2026 | 17 µg/l 28 Aug 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.