River Perry at Mytton
EA name: R.PERRY AT MYTTON (also listed as “RIVER PERRY AT MYTTON”)
Environment Agency sampling point MD-29991100 · 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
- 18 Sep 2026, 15:0513 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 48 since 17 Jun 2024 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Environmental monitoring statutory (EU directives) · results completed 23 Sep 2026
- Where
- National Grid 343900, 317000As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Perry
- River, by the map
- River PerryPlaced on the river its name gives, 32 m from the line.
- Next gauge downstream
- Welsh Bridge On the River Severn · 17 km along the river
- Nearest gauge upstream
- Yeaton On the River Perry · 3.5 km along the river
- Why it was sampled
- Planned investigation (local monitoring) (30 samples)
Environmental monitoring statutory (EU directives) (18 samples)
Results here were completed a median of 5 days after the sample was taken (3 to 13 days, 24 samples).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
99.2%
Sampled 18 Sep 2026, 13 days ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 15:05 | 99.2 | 99.2% |
| 3 Sep 2026, 15:19 | 96.9 | 96.9% |
| 1 Jul 2026, 13:26 | 100.5 | 100.5% |
| 27 Apr 2026, 15:02 | 136.3 | 136.3% |
| 6 Mar 2026, 09:09 | 93.4 | 93.4% |
| 10 Nov 2025, 11:15 | 92.8 | 92.8% |
| 8 Oct 2025, 08:24 | 87.2 | 87.2% |
| 16 Apr 2025, 12:51 | 109.8 | 109.8% |
| 6 Mar 2025, 10:02 | 97.9 | 97.9% |
| 4 Feb 2025, 13:07 | 96.6 | 96.6% |
| 23 Dec 2024, 13:19 | 92.3 | 92.3% |
| 31 Oct 2024, 09:28 | 93.5 | 93.5% |
| 3 Sep 2024, 14:54 | 98.8 | 98.8% |
| 16 Aug 2024, 14:12 | 106.1 | 106.1% |
| 5 Jul 2024, 12:35 | 105.8 | 105.8% |
| 17 Jun 2024, 13:05 | 99 | 99% |
Dissolved oxygen
as O2 · code 9924 · mg/l
9.7 mg/l
Sampled 18 Sep 2026, 13 days ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 15:05 | 9.7 | 9.7 mg/l |
| 3 Sep 2026, 15:19 | 9.28 | 9.28 mg/l |
| 1 Jul 2026, 13:26 | 9.59 | 9.59 mg/l |
| 27 Apr 2026, 15:02 | 13.8 | 13.8 mg/l |
| 6 Mar 2026, 09:09 | 11.1 | 11.1 mg/l |
| 10 Nov 2025, 11:15 | 10.4 | 10.4 mg/l |
| 8 Oct 2025, 08:24 | 9.23 | 9.23 mg/l |
| 16 Apr 2025, 12:51 | 12.3 | 12.3 mg/l |
| 6 Mar 2025, 10:02 | 12 | 12 mg/l |
| 4 Feb 2025, 13:07 | 11.4 | 11.4 mg/l |
| 23 Dec 2024, 13:19 | 11.5 | 11.5 mg/l |
| 31 Oct 2024, 09:28 | 10.2 | 10.2 mg/l |
| 3 Sep 2024, 14:54 | 9.81 | 9.81 mg/l |
| 16 Aug 2024, 14:12 | 10.4 | 10.4 mg/l |
| 5 Jul 2024, 12:35 | 10.6 | 10.6 mg/l |
| 17 Jun 2024, 13:05 | 10.2 | 10.2 mg/l |
Water temperature
code 0076 · °C
16.3 °C
Sampled 18 Sep 2026, 13 days ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 15:05 | 16.3 | 16.3 °C |
| 3 Sep 2026, 15:19 | 17.3 | 17.3 °C |
| 1 Jul 2026, 13:26 | 17.5 | 17.5 °C |
| 27 Apr 2026, 15:02 | 14.7 | 14.7 °C |
| 6 Mar 2026, 09:09 | 7.9 | 7.9 °C |
| 10 Nov 2025, 11:15 | 10.3 | 10.3 °C |
| 8 Oct 2025, 08:24 | 12.7 | 12.7 °C |
| 16 Apr 2025, 12:51 | 10.1 | 10.1 °C |
| 6 Mar 2025, 10:02 | 6.7 | 6.7 °C |
| 4 Feb 2025, 13:07 | 8 | 8 °C |
| 23 Dec 2024, 13:19 | 5.9 | 5.9 °C |
| 31 Oct 2024, 09:28 | 11.5 | 11.5 °C |
| 3 Sep 2024, 14:54 | 15.6 | 15.6 °C |
| 16 Aug 2024, 14:12 | 16.4 | 16.4 °C |
| 5 Jul 2024, 12:35 | 15.1 | 15.1 °C |
| 17 Jun 2024, 13:05 | 14.1 | 14.1 °C |
pH
code 0061
8.1
Sampled 18 Sep 2026, 13 days ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 15:05 | 8.1 | 8.1 |
| 3 Sep 2026, 15:19 | 8.07 | 8.07 |
| 1 Jul 2026, 13:26 | 8.24 | 8.24 |
| 27 Apr 2026, 15:02 | 8.75 | 8.75 |
| 6 Mar 2026, 09:09 | 8.05 | 8.05 |
| 10 Nov 2025, 11:15 | 8.09 | 8.09 |
| 8 Oct 2025, 08:24 | 8.16 | 8.16 |
| 16 Apr 2025, 12:51 | 8.39 | 8.39 |
| 6 Mar 2025, 10:02 | 8.11 | 8.11 |
| 4 Feb 2025, 13:07 | 8.04 | 8.04 |
| 23 Dec 2024, 13:19 | 7.57 | 7.57 |
| 31 Oct 2024, 09:28 | 7.84 | 7.84 |
| 3 Sep 2024, 14:54 | 8.1 | 8.1 |
| 16 Aug 2024, 14:12 | 8.33 | 8.33 |
| 5 Jul 2024, 12:35 | 8.35 | 8.35 |
| 17 Jun 2024, 13:05 | 8.26 | 8.26 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 18 Sep 2026, 13 days ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 15:05 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Sep 2026, 15:19 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Jul 2026, 13:26 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Apr 2026, 15:02 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Mar 2026, 09:09 | 0.052 | 0.052 mg/l |
| 10 Nov 2025, 11:15 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Oct 2025, 08:24 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Apr 2025, 12:51 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Mar 2025, 10:02 | 0.13 | 0.13 mg/l |
| 4 Feb 2025, 13:07 | 0.1 | 0.1 mg/l |
| 23 Dec 2024, 13:19 | 0.19 | 0.19 mg/l |
| 31 Oct 2024, 09:28 | 0.056 | 0.056 mg/l |
| 3 Sep 2024, 14:54 | 0.046 | 0.046 mg/l |
| 16 Aug 2024, 14:12 | 0.049 | 0.049 mg/l |
| 5 Jul 2024, 12:35 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Jun 2024, 13:05 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
6.09 mg/l
Sampled 18 Sep 2026, 13 days ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 15:05 | 6.09 | 6.09 mg/l |
| 3 Sep 2026, 15:19 | 5.19 | 5.19 mg/l |
| 1 Jul 2026, 13:26 | 5.79 | 5.79 mg/l |
| 27 Apr 2026, 15:02 | 7.59 | 7.59 mg/l |
| 6 Mar 2026, 09:09 | 6.96 | 6.96 mg/l |
| 10 Nov 2025, 11:15 | 5.38 | 5.38 mg/l |
| 8 Oct 2025, 08:24 | 6.48 | 6.48 mg/l |
| 16 Apr 2025, 12:51 | 7.67 | 7.67 mg/l |
| 6 Mar 2025, 10:02 | 6.95 | 6.95 mg/l |
| 4 Feb 2025, 13:07 | 6.65 | 6.65 mg/l |
| 23 Dec 2024, 13:19 | 5.45 | 5.45 mg/l |
| 31 Oct 2024, 09:28 | 5.44 | 5.44 mg/l |
| 3 Sep 2024, 14:54 | 6.77 | 6.77 mg/l |
| 16 Aug 2024, 14:12 | 6.79 | 6.79 mg/l |
| 5 Jul 2024, 12:35 | 7.48 | 7.48 mg/l |
| 17 Jun 2024, 13:05 | 6.57 | 6.57 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.54 mg/l
Sampled 18 Sep 2026, 13 days ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 15:05 | 0.54 | 0.54 mg/l |
| 3 Sep 2026, 15:19 | 0.45 | 0.45 mg/l |
| 1 Jul 2026, 13:26 | 0.44 | 0.44 mg/l |
| 27 Apr 2026, 15:02 | 0.14 | 0.14 mg/l |
| 6 Mar 2026, 09:09 | 0.15 | 0.15 mg/l |
| 10 Nov 2025, 11:15 | 0.26 | 0.26 mg/l |
| 8 Oct 2025, 08:24 | 0.31 | 0.31 mg/l |
| 16 Apr 2025, 12:51 | 0.095 | 0.095 mg/l |
| 6 Mar 2025, 10:02 | 0.089 | 0.089 mg/l |
| 4 Feb 2025, 13:07 | 0.12 | 0.12 mg/l |
| 23 Dec 2024, 13:19 | 0.33 | 0.33 mg/l |
| 31 Oct 2024, 09:28 | 0.13 | 0.13 mg/l |
| 3 Sep 2024, 14:54 | 0.29 | 0.29 mg/l |
| 16 Aug 2024, 14:12 | 0.26 | 0.26 mg/l |
| 5 Jul 2024, 12:35 | 0.15 | 0.15 mg/l |
| 17 Jun 2024, 13:05 | 0.13 | 0.13 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
645 µS/cm
Sampled 18 Sep 2026, 13 days ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 18 Sep 2026, 15:05 | 645 | 645 µS/cm |
| 3 Sep 2026, 15:19 | 639 | 639 µS/cm |
| 1 Jul 2026, 13:26 | 659 | 659 µS/cm |
| 27 Apr 2026, 15:02 | 672 | 672 µS/cm |
| 6 Mar 2026, 09:09 | 636 | 636 µS/cm |
| 10 Nov 2025, 11:15 | 634 | 634 µS/cm |
| 8 Oct 2025, 08:24 | 670 | 670 µS/cm |
| 16 Apr 2025, 12:51 | 677 | 677 µS/cm |
| 6 Mar 2025, 10:02 | 629 | 629 µS/cm |
| 4 Feb 2025, 13:07 | 604 | 604 µS/cm |
| 23 Dec 2024, 13:19 | 548 | 548 µS/cm |
| 31 Oct 2024, 09:28 | 643 | 643 µS/cm |
| 3 Sep 2024, 14:54 | 639 | 639 µS/cm |
| 16 Aug 2024, 14:12 | 667 | 667 µS/cm |
| 5 Jul 2024, 12:35 | 686 | 686 µS/cm |
| 17 Jun 2024, 13:05 | 605 | 605 µS/cm |
E. coli
confirmed, membrane filtration · code 2348 · per 100 ml
3300 per 100 ml
Sampled 17 Sep 2026, 14 days ago · 34 results banked
Every result (34)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Sep 2026, 12:01 | 3300 | 3300 per 100 ml |
| 8 Sep 2026, 12:26 | 2200 | 2200 per 100 ml |
| 3 Sep 2026, 15:19 | 1500 | 1500 per 100 ml |
| 27 Aug 2026, 14:09 | 15000 | 15000 per 100 ml |
| 19 Aug 2026, 11:40 | 1200 | 1200 per 100 ml |
| 11 Aug 2026, 12:02 | 3000 | 3000 per 100 ml |
| 5 Aug 2026, 12:31 | 990 | 990 per 100 ml |
| 28 Jul 2026, 14:59 | 910 | 910 per 100 ml |
| 22 Jul 2026, 12:52 | 1500 | 1500 per 100 ml |
| 7 Jul 2026, 11:16 | 520 | 520 per 100 ml |
| 1 Jul 2026, 13:26 | 570 | 570 per 100 ml |
| 19 Jun 2026, 14:22 | 390 | 390 per 100 ml |
| 2 Jun 2026, 10:46 | 2200 | 2200 per 100 ml |
| 26 May 2026, 13:58 | 460 | 460 per 100 ml |
| 20 May 2026, 13:57 | 420 | 420 per 100 ml |
| 24 Sep 2025, 12:39 | 620 | 620 per 100 ml |
| 12 Sep 2025, 12:53 | 1500 | 1500 per 100 ml |
| 8 Sep 2025, 10:25 | 5500 | 5500 per 100 ml |
| 28 Aug 2025, 10:30 | 3500 | 3500 per 100 ml |
| 26 Aug 2025, 13:33 | 1300 | 1300 per 100 ml |
| 22 Aug 2025, 10:30 | 1400 | 1400 per 100 ml |
| 13 Aug 2025, 13:45 | 810 | 810 per 100 ml |
| 10 Aug 2025, 10:39 | 740 | 740 per 100 ml |
| 28 Jul 2025, 10:26 | 1300 | 1300 per 100 ml |
| 25 Jul 2025, 13:30 | 480 | 480 per 100 ml |
| 15 Jul 2025, 12:55 | 3000 | 3000 per 100 ml |
| 13 Jul 2025, 12:49 | 650 | 650 per 100 ml |
| 10 Jul 2025, 10:40 | 780 | 780 per 100 ml |
| 26 Jun 2025, 12:45 | 520 | 520 per 100 ml |
| 16 Jun 2025, 10:32 | 340 | 340 per 100 ml |
| 10 Jun 2025, 13:32 | 250 | 250 per 100 ml |
| 30 May 2025, 13:08 | 240 | 240 per 100 ml |
| 27 May 2025, 14:23 | 5600 | 5600 per 100 ml |
| 12 May 2025, 11:25 | 630 | 630 per 100 ml |
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 | 16 | Jun 2024 – Sep 2026 | 99.2% 18 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 16 | Jun 2024 – Sep 2026 | 9.7 mg/l 18 Sep 2026 |
| Temperature of Water 0076 | River water | 16 | Jun 2024 – Sep 2026 | 16.3 °C 18 Sep 2026 |
| pH 0061 | River water | 16 | Jun 2024 – Sep 2026 | 8.1 18 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 16 | Jun 2024 – Sep 2026 | below 0.03 mg/l 18 Sep 2026 |
| Nitrate as N 0117 | River water | 16 | Jun 2024 – Sep 2026 | 6.09 mg/l 18 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 16 | Jun 2024 – Sep 2026 | 0.54 mg/l 18 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 16 | Jun 2024 – Sep 2026 | 645 µS/cm 18 Sep 2026 |
| Escherichia coli : Confirmed : MF 2348 | River water | 34 | May 2025 – Sep 2026 | 3300 per 100 ml 17 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 16 | Jun 2024 – Sep 2026 | 220 mg/l 18 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 16 | Jun 2024 – Sep 2026 | below 0.00087 mg/l 18 Sep 2026 |
| Enterococci: Intestinal: Confirmed: MF 3723 | River water | 34 | May 2025 – Sep 2026 | 2100 colony forming units / 100ml 17 Sep 2026 |
| Enterococci: Intestinal: Presumptive: MF 3722 | River water | 34 | May 2025 – Sep 2026 | 2100 colony forming units / 100ml 17 Sep 2026 |
| MST Filtration 4926 | River water | 34 | May 2025 – Sep 2026 | DNA Stored 17 Sep 2026 |
| Nitrite as N 0118 | River water | 16 | Jun 2024 – Sep 2026 | 0.007 mg/l 18 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 16 | Jun 2024 – Sep 2026 | 6.1 mg/l 18 Sep 2026 |
| Volume of Sample Filtered 4865 | River water | 34 | May 2025 – Sep 2026 | 970 millilitre 17 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.