River Roch above Rochdale Sewage Works
EA name: RIVER ROCH ABOVE ROCHDALE SEWAGE WORKS
Environment Agency sampling point NW-88002208 · 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 May 2026, 10:284 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 24 Jun 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 388276, 412752As published, to the nearest 1 m. Open in a map
- River, by its own name
- Roch
- River, by the map
- River RochPlaced on the river its name gives, 2 m from the line.
- Next gauge downstream
- Blackford Bridge On the River Roch · 15 km along the riverBeside Rochdale: too close to say above or below.
- Nearest gauge upstream
- Albert Royds Bridge On the River Roch · 4.8 km along the river
- Why it was sampled
- Monitoring (national agency policy) (12 samples)
Environmental monitoring statutory (EU directives) (12 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
101.7%
Sampled 28 May 2026, 4 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 May 2026, 10:28 | 101.7 | 101.7% |
| 27 May 2026, 14:18 | 121.4 | 121.4% |
| 13 Apr 2026, 14:30 | 106.7 | 106.7% |
| 17 Feb 2026, 12:54 | 101.2 | 101.2% |
| 16 Jan 2026, 12:52 | 100.9 | 100.9% |
| 10 Dec 2025, 11:34 | 102.5 | 102.5% |
| 17 Nov 2025, 11:05 | 103.1 | 103.1% |
| 24 Oct 2025, 12:49 | 105.1 | 105.1% |
| 30 Sep 2025, 12:52 | 103.8 | 103.8% |
| 14 Aug 2025, 09:12 | 98.8 | 98.8% |
| 10 Jul 2025, 10:49 | 100.5 | 100.5% |
| 24 Jun 2025, 13:37 | 100.5 | 100.5% |
| 13 May 2025, 11:24 | 101.9 | 101.9% |
| 7 Apr 2025, 14:21 | 106.6 | 106.6% |
| 24 Mar 2025, 11:13 | 103.8 | 103.8% |
| 24 Feb 2025, 12:48 | 101.5 | 101.5% |
| 27 Jan 2025, 13:13 | 102.9 | 102.9% |
| 12 Dec 2024, 12:50 | 102 | 102% |
| 25 Nov 2024, 12:12 | 101.7 | 101.7% |
| 17 Oct 2024, 10:22 | 101.1 | 101.1% |
| 16 Sep 2024, 11:00 | 97.3 | 97.3% |
| 21 Aug 2024, 09:30 | 93.1 | 93.1% |
| 29 Jul 2024, 09:25 | 96.9 | 96.9% |
| 24 Jun 2024, 11:50 | 10.2 | 10.2% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10.4 mg/l
Sampled 28 May 2026, 4 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 May 2026, 10:28 | 10.4 | 10.4 mg/l |
| 27 May 2026, 14:18 | 11.9 | 11.9 mg/l |
| 13 Apr 2026, 14:30 | 12.1 | 12.1 mg/l |
| 17 Feb 2026, 12:54 | 13 | 13 mg/l |
| 16 Jan 2026, 12:52 | 12.6 | 12.6 mg/l |
| 10 Dec 2025, 11:34 | 11.9 | 11.9 mg/l |
| 17 Nov 2025, 11:05 | 12.7 | 12.7 mg/l |
| 24 Oct 2025, 12:49 | 11.9 | 11.9 mg/l |
| 30 Sep 2025, 12:52 | 11.4 | 11.4 mg/l |
| 14 Aug 2025, 09:12 | 9.35 | 9.35 mg/l |
| 10 Jul 2025, 10:49 | 9.91 | 9.91 mg/l |
| 24 Jun 2025, 13:37 | 10.1 | 10.1 mg/l |
| 13 May 2025, 11:24 | 10.4 | 10.4 mg/l |
| 7 Apr 2025, 14:21 | 12.2 | 12.2 mg/l |
| 24 Mar 2025, 11:13 | 12.2 | 12.2 mg/l |
| 24 Feb 2025, 12:48 | 11.9 | 11.9 mg/l |
| 27 Jan 2025, 13:13 | 12.9 | 12.9 mg/l |
| 12 Dec 2024, 12:50 | 12.3 | 12.3 mg/l |
| 25 Nov 2024, 12:12 | 12 | 12 mg/l |
| 17 Oct 2024, 10:22 | 10.9 | 10.9 mg/l |
| 16 Sep 2024, 11:00 | 10.4 | 10.4 mg/l |
| 21 Aug 2024, 09:30 | 9.74 | 9.74 mg/l |
| 29 Jul 2024, 09:25 | 9.81 | 9.81 mg/l |
| 24 Jun 2024, 11:50 | 1 | 1 mg/l |
Water temperature
code 0076 · °C
14.1 °C
Sampled 28 May 2026, 4 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 May 2026, 10:28 | 14.1 | 14.1 °C |
| 27 May 2026, 14:18 | 16.3 | 16.3 °C |
| 13 Apr 2026, 14:30 | 9.7 | 9.7 °C |
| 17 Feb 2026, 12:54 | 4.8 | 4.8 °C |
| 16 Jan 2026, 12:52 | 5.7 | 5.7 °C |
| 10 Dec 2025, 11:34 | 8.7 | 8.7 °C |
| 17 Nov 2025, 11:05 | 6.5 | 6.5 °C |
| 24 Oct 2025, 12:49 | 9.7 | 9.7 °C |
| 30 Sep 2025, 12:52 | 11.2 | 11.2 °C |
| 14 Aug 2025, 09:12 | 17.9 | 17.9 °C |
| 10 Jul 2025, 10:49 | 15.9 | 15.9 °C |
| 24 Jun 2025, 13:37 | 14.9 | 14.9 °C |
| 13 May 2025, 11:24 | 14.3 | 14.3 °C |
| 7 Apr 2025, 14:21 | 9.5 | 9.5 °C |
| 24 Mar 2025, 11:13 | 8.2 | 8.2 °C |
| 24 Feb 2025, 12:48 | 8.2 | 8.2 °C |
| 27 Jan 2025, 13:13 | 5.6 | 5.6 °C |
| 12 Dec 2024, 12:50 | 7.2 | 7.2 °C |
| 25 Nov 2024, 12:12 | 8.1 | 8.1 °C |
| 17 Oct 2024, 10:22 | 11.8 | 11.8 °C |
| 16 Sep 2024, 11:00 | 12.2 | 12.2 °C |
| 21 Aug 2024, 09:30 | 13.2 | 13.2 °C |
| 29 Jul 2024, 09:25 | 14.7 | 14.7 °C |
| 24 Jun 2024, 11:50 | 16.1 | 16.1 °C |
pH
code 0061
7.9
Sampled 28 May 2026, 4 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 May 2026, 10:28 | 7.9 | 7.9 |
| 27 May 2026, 14:18 | 8.32 | 8.32 |
| 13 Apr 2026, 14:30 | 7.96 | 7.96 |
| 17 Feb 2026, 12:54 | 7.75 | 7.75 |
| 16 Jan 2026, 12:52 | 7.4 | 7.4 |
| 10 Dec 2025, 11:34 | 7.73 | 7.73 |
| 17 Nov 2025, 11:05 | 7.55 | 7.55 |
| 24 Oct 2025, 12:49 | 7.87 | 7.87 |
| 30 Sep 2025, 12:52 | 7.9 | 7.9 |
| 14 Aug 2025, 09:12 | 7.81 | 7.81 |
| 10 Jul 2025, 10:49 | 7.86 | 7.86 |
| 24 Jun 2025, 13:37 | 7.81 | 7.81 |
| 13 May 2025, 11:24 | 7.94 | 7.94 |
| 7 Apr 2025, 14:21 | 8.42 | 8.42 |
| 24 Mar 2025, 11:13 | 8.06 | 8.06 |
| 24 Feb 2025, 12:48 | 7.96 | 7.96 |
| 27 Jan 2025, 13:13 | 7.98 | 7.98 |
| 12 Dec 2024, 12:50 | 7.62 | 7.62 |
| 25 Nov 2024, 12:12 | 7.66 | 7.66 |
| 17 Oct 2024, 10:22 | 7.64 | 7.64 |
| 16 Sep 2024, 11:00 | 7.71 | 7.71 |
| 21 Aug 2024, 09:30 | 7.81 | 7.81 |
| 29 Jul 2024, 09:25 | 7.85 | 7.85 |
| 24 Jun 2024, 11:50 | 7.34 | 7.34 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.065 mg/l
Sampled 28 May 2026, 4 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 May 2026, 10:28 | 0.065 | 0.065 mg/l |
| 27 May 2026, 14:18 | 0.035 | 0.035 mg/l |
| 13 Apr 2026, 14:30 | 0.036 | 0.036 mg/l |
| 17 Feb 2026, 12:54 | 0.045 | 0.045 mg/l |
| 16 Jan 2026, 12:52 | 0.07 | 0.07 mg/l |
| 10 Dec 2025, 11:34 | 0.046 | 0.046 mg/l |
| 17 Nov 2025, 11:05 | 0.038 | 0.038 mg/l |
| 24 Oct 2025, 12:49 | 0.041 | 0.041 mg/l |
| 30 Sep 2025, 12:52 | 0.043 | 0.043 mg/l |
| 14 Aug 2025, 09:12 | 0.053 | 0.053 mg/l |
| 10 Jul 2025, 10:49 | 0.042 | 0.042 mg/l |
| 24 Jun 2025, 13:37 | 0.084 | 0.084 mg/l |
| 13 May 2025, 11:24 | 0.09 | 0.09 mg/l |
| 7 Apr 2025, 14:21 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Mar 2025, 11:13 | 0.054 | 0.054 mg/l |
| 24 Feb 2025, 12:48 | 0.048 | 0.048 mg/l |
| 27 Jan 2025, 13:13 | 0.07 | 0.07 mg/l |
| 12 Dec 2024, 12:50 | 0.078 | 0.078 mg/l |
| 25 Nov 2024, 12:12 | 0.053 | 0.053 mg/l |
| 17 Oct 2024, 10:22 | 0.041 | 0.041 mg/l |
| 16 Sep 2024, 11:00 | 0.049 | 0.049 mg/l |
| 21 Aug 2024, 09:30 | 0.038 | 0.038 mg/l |
| 29 Jul 2024, 09:25 | 0.053 | 0.053 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.627 mg/l
Sampled 28 May 2026, 4 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 May 2026, 10:28 | 0.627 | 0.627 mg/l |
| 27 May 2026, 14:18 | 0.581 | 0.581 mg/l |
| 13 Apr 2026, 14:30 | 0.685 | 0.685 mg/l |
| 17 Feb 2026, 12:54 | 0.976 | 0.976 mg/l |
| 16 Jan 2026, 12:52 | 0.993 | 0.993 mg/l |
| 10 Dec 2025, 11:34 | 0.995 | 0.995 mg/l |
| 17 Nov 2025, 11:05 | 1.1 | 1.1 mg/l |
| 24 Oct 2025, 12:49 | 0.783 | 0.783 mg/l |
| 30 Sep 2025, 12:52 | 0.874 | 0.874 mg/l |
| 14 Aug 2025, 09:12 | 0.572 | 0.572 mg/l |
| 10 Jul 2025, 10:49 | 0.609 | 0.609 mg/l |
| 24 Jun 2025, 13:37 | 0.653 | 0.653 mg/l |
| 13 May 2025, 11:24 | 0.568 | 0.568 mg/l |
| 7 Apr 2025, 14:21 | 0.525 | 0.525 mg/l |
| 24 Mar 2025, 11:13 | 0.613 | 0.613 mg/l |
| 24 Feb 2025, 12:48 | 0.872 | 0.872 mg/l |
| 27 Jan 2025, 13:13 | 0.874 | 0.874 mg/l |
| 12 Dec 2024, 12:50 | 0.974 | 0.974 mg/l |
| 25 Nov 2024, 12:12 | 1.39 | 1.39 mg/l |
| 17 Oct 2024, 10:22 | 0.763 | 0.763 mg/l |
| 16 Sep 2024, 11:00 | 0.828 | 0.828 mg/l |
| 21 Aug 2024, 09:30 | 0.637 | 0.637 mg/l |
| 29 Jul 2024, 09:25 | 0.536 | 0.536 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.03 mg/l
Sampled 28 May 2026, 4 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 May 2026, 10:28 | 0.03 | 0.03 mg/l |
| 27 May 2026, 14:18 | 0.027 | 0.027 mg/l |
| 13 Apr 2026, 14:30 | 0.027 | 0.027 mg/l |
| 17 Feb 2026, 12:54 | 0.016 | 0.016 mg/l |
| 16 Jan 2026, 12:52 | 0.031 | 0.031 mg/l |
| 10 Dec 2025, 11:34 | 0.025 | 0.025 mg/l |
| 17 Nov 2025, 11:05 | 0.023 | 0.023 mg/l |
| 24 Oct 2025, 12:49 | 0.031 | 0.031 mg/l |
| 30 Sep 2025, 12:52 | 0.026 | 0.026 mg/l |
| 14 Aug 2025, 09:12 | 0.032 | 0.032 mg/l |
| 10 Jul 2025, 10:49 | 0.035 | 0.035 mg/l |
| 24 Jun 2025, 13:37 | 0.037 | 0.037 mg/l |
| 13 May 2025, 11:24 | 0.026 | 0.026 mg/l |
| 7 Apr 2025, 14:21 | <0.01 | below 0.01 mg/l (not detected above this) |
| 24 Mar 2025, 11:13 | 0.01 | 0.01 mg/l |
| 24 Feb 2025, 12:48 | 0.02 | 0.02 mg/l |
| 27 Jan 2025, 13:13 | 0.035 | 0.035 mg/l |
| 12 Dec 2024, 12:50 | 0.016 | 0.016 mg/l |
| 25 Nov 2024, 12:12 | 0.048 | 0.048 mg/l |
| 17 Oct 2024, 10:22 | 0.054 | 0.054 mg/l |
| 16 Sep 2024, 11:00 | 0.032 | 0.032 mg/l |
| 21 Aug 2024, 09:30 | 0.028 | 0.028 mg/l |
| 29 Jul 2024, 09:25 | 0.024 | 0.024 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
289 µS/cm
Sampled 28 May 2026, 4 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 28 May 2026, 10:28 | 289 | 289 µS/cm |
| 27 May 2026, 14:18 | 280 | 280 µS/cm |
| 13 Apr 2026, 14:30 | 245 | 245 µS/cm |
| 17 Feb 2026, 12:54 | 207 | 207 µS/cm |
| 16 Jan 2026, 12:52 | 259 | 259 µS/cm |
| 10 Dec 2025, 11:34 | 176 | 176 µS/cm |
| 17 Nov 2025, 11:05 | 211 | 211 µS/cm |
| 24 Oct 2025, 12:49 | 218 | 218 µS/cm |
| 30 Sep 2025, 12:52 | 267 | 267 µS/cm |
| 14 Aug 2025, 09:12 | 295 | 295 µS/cm |
| 10 Jul 2025, 10:49 | 303 | 303 µS/cm |
| 24 Jun 2025, 13:37 | 257 | 257 µS/cm |
| 13 May 2025, 11:24 | 317 | 317 µS/cm |
| 7 Apr 2025, 14:21 | 312 | 312 µS/cm |
| 24 Mar 2025, 11:13 | 334 | 334 µS/cm |
| 24 Feb 2025, 12:48 | 231 | 231 µS/cm |
| 27 Jan 2025, 13:13 | 225 | 225 µS/cm |
| 12 Dec 2024, 12:50 | 243 | 243 µS/cm |
| 25 Nov 2024, 12:12 | 207 | 207 µS/cm |
| 17 Oct 2024, 10:22 | 170 | 170 µS/cm |
| 16 Sep 2024, 11:00 | 259 | 259 µS/cm |
| 21 Aug 2024, 09:30 | 293 | 293 µS/cm |
| 29 Jul 2024, 09:25 | 313 | 313 µS/cm |
| 24 Jun 2024, 11:50 | 634 | 634 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 | 24 | Jun 2024 – May 2026 | 101.7% 28 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 24 | Jun 2024 – May 2026 | 10.4 mg/l 28 May 2026 |
| Temperature of Water 0076 | River water | 24 | Jun 2024 – May 2026 | 14.1 °C 28 May 2026 |
| pH 0061 | River water | 24 | Jun 2024 – May 2026 | 7.9 28 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 23 | Jul 2024 – May 2026 | 0.065 mg/l 28 May 2026 |
| Nitrate as N 0117 | River water | 23 | Jul 2024 – May 2026 | 0.627 mg/l 28 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 23 | Jul 2024 – May 2026 | 0.03 mg/l 28 May 2026 |
| Conductivity at 25 C 0077 | River water | 24 | Jun 2024 – May 2026 | 289 µS/cm 28 May 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 23 | Jul 2024 – May 2026 | 80 mg/l 28 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 23 | Jul 2024 – May 2026 | 0.00128 mg/l 28 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 21 | Jul 2024 – May 2026 | below 3 mg/l 28 May 2026 |
| Chloride 0172 | River water | 12 | Apr 2025 – May 2026 | 17 mg/l 27 May 2026 |
| Nitrite as N 0118 | River water | 23 | Jul 2024 – May 2026 | 0.013 mg/l 28 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 23 | Jul 2024 – May 2026 | 0.64 mg/l 28 May 2026 |
| Solids, Suspended at 105 C 0135 | River water | 12 | Apr 2025 – May 2026 | 4.6 mg/l 27 May 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.