River Irwell at Ewood Bridge
EA name: RIVER IRWELL AT EWOOD BRIDGE
Environment Agency sampling point NW-88002094 · 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
- 26 Aug 2026, 10:4136 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 27 since 21 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 379567, 420884As published, to the nearest 1 m. Open in a map
- River, by its own name
- Irwell
- River, by the map
- River IrwellPlaced on the river its name gives, 3 m from the line.
- Next gauge downstream
- Irwell Vale On the River Irwell · 1.0 km along the river
- Nearest gauge upstream
- Rawtenstall On the Limey Water · 3.4 km along the riverHolt Mill Bridge On the River Irwell · 5.3 km along the river
- Why it was sampled
- Monitoring (national agency policy) (15 samples)
Environmental monitoring statutory (EU directives) (12 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
99.7%
Sampled 26 Aug 2026, 36 days ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 26 Aug 2026, 10:41 | 99.7 | 99.7% |
| 24 Jul 2026, 09:16 | 103.4 | 103.4% |
| 30 Jun 2026, 11:20 | 108.5 | 108.5% |
| 27 May 2026, 08:24 | 101.1 | 101.1% |
| 30 Apr 2026, 11:58 | 127.3 | 127.3% |
| 27 Mar 2026, 10:31 | 104.3 | 104.3% |
| 25 Feb 2026, 10:16 | 103.1 | 103.1% |
| 29 Jan 2026, 10:17 | 100.1 | 100.1% |
| 18 Dec 2025, 10:35 | 101.2 | 101.2% |
| 28 Nov 2025, 09:49 | 98.6 | 98.6% |
| 16 Oct 2025, 11:02 | 106 | 106% |
| 12 Sep 2025, 09:54 | 98.2 | 98.2% |
| 6 Aug 2025, 12:16 | 109.4 | 109.4% |
| 16 Jul 2025, 13:45 | 105.5 | 105.5% |
| 17 Jun 2025, 10:59 | 103.2 | 103.2% |
| 6 May 2025, 14:06 | 120.1 | 120.1% |
| 7 Apr 2025, 16:38 | 129.1 | 129.1% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10.1 mg/l
Sampled 26 Aug 2026, 36 days ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 26 Aug 2026, 10:41 | 10.1 | 10.1 mg/l |
| 24 Jul 2026, 09:16 | 10.2 | 10.2 mg/l |
| 30 Jun 2026, 11:20 | 10.5 | 10.5 mg/l |
| 27 May 2026, 08:24 | 10.2 | 10.2 mg/l |
| 30 Apr 2026, 11:58 | 14 | 14 mg/l |
| 27 Mar 2026, 10:31 | 12.4 | 12.4 mg/l |
| 25 Feb 2026, 10:16 | 12.4 | 12.4 mg/l |
| 29 Jan 2026, 10:17 | 12.8 | 12.8 mg/l |
| 18 Dec 2025, 10:35 | 12 | 12 mg/l |
| 28 Nov 2025, 09:49 | 11.8 | 11.8 mg/l |
| 16 Oct 2025, 11:02 | 11.8 | 11.8 mg/l |
| 12 Sep 2025, 09:54 | 10.6 | 10.6 mg/l |
| 6 Aug 2025, 12:16 | 10.9 | 10.9 mg/l |
| 16 Jul 2025, 13:45 | 10.1 | 10.1 mg/l |
| 17 Jun 2025, 10:59 | 10.4 | 10.4 mg/l |
| 6 May 2025, 14:06 | 12.8 | 12.8 mg/l |
| 7 Apr 2025, 16:38 | 14.2 | 14.2 mg/l |
Water temperature
code 0076 · °C
14.8 °C
Sampled 26 Aug 2026, 36 days ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 26 Aug 2026, 10:41 | 14.8 | 14.8 °C |
| 24 Jul 2026, 09:16 | 15.7 | 15.7 °C |
| 30 Jun 2026, 11:20 | 16.7 | 16.7 °C |
| 27 May 2026, 08:24 | 14.7 | 14.7 °C |
| 30 Apr 2026, 11:58 | 11.1 | 11.1 °C |
| 27 Mar 2026, 10:31 | 7.9 | 7.9 °C |
| 25 Feb 2026, 10:16 | 7.4 | 7.4 °C |
| 29 Jan 2026, 10:17 | 4.9 | 4.9 °C |
| 18 Dec 2025, 10:35 | 7.8 | 7.8 °C |
| 28 Nov 2025, 09:49 | 7.4 | 7.4 °C |
| 16 Oct 2025, 11:02 | 10.5 | 10.5 °C |
| 12 Sep 2025, 09:54 | 11.7 | 11.7 °C |
| 6 Aug 2025, 12:16 | 15.4 | 15.4 °C |
| 16 Jul 2025, 13:45 | 17.2 | 17.2 °C |
| 17 Jun 2025, 10:59 | 15 | 15 °C |
| 6 May 2025, 14:06 | 12.4 | 12.4 °C |
| 7 Apr 2025, 16:38 | 10.9 | 10.9 °C |
pH
code 0061
7.96
Sampled 26 Aug 2026, 36 days ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 26 Aug 2026, 10:41 | 7.96 | 7.96 |
| 24 Jul 2026, 09:16 | 8.22 | 8.22 |
| 30 Jun 2026, 11:20 | 8.33 | 8.33 |
| 27 May 2026, 08:24 | 8.12 | 8.12 |
| 30 Apr 2026, 11:58 | 9.14 | 9.14 |
| 27 Mar 2026, 10:31 | 7.84 | 7.84 |
| 25 Feb 2026, 10:16 | 8.02 | 8.02 |
| 29 Jan 2026, 10:17 | 7.69 | 7.69 |
| 18 Dec 2025, 10:35 | 7.65 | 7.65 |
| 28 Nov 2025, 09:49 | 7.58 | 7.58 |
| 16 Oct 2025, 11:02 | 8.15 | 8.15 |
| 12 Sep 2025, 09:54 | 8.16 | 8.16 |
| 6 Aug 2025, 12:16 | 8.48 | 8.48 |
| 16 Jul 2025, 13:45 | 8.27 | 8.27 |
| 17 Jun 2025, 10:59 | 8.2 | 8.2 |
| 6 May 2025, 14:06 | 8.64 | 8.64 |
| 7 Apr 2025, 16:38 | 9.63 | 9.63 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.08 mg/l
Sampled 26 Aug 2026, 36 days ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 26 Aug 2026, 10:41 | 0.08 | 0.08 mg/l |
| 24 Jul 2026, 09:16 | <0.03 | below 0.03 mg/l (not detected above this) |
| 30 Jun 2026, 11:20 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 May 2026, 08:24 | 0.039 | 0.039 mg/l |
| 30 Apr 2026, 11:58 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Mar 2026, 10:31 | <0.03 | below 0.03 mg/l (not detected above this) |
| 25 Feb 2026, 10:16 | <0.03 | below 0.03 mg/l (not detected above this) |
| 29 Jan 2026, 10:17 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Dec 2025, 10:35 | 0.054 | 0.054 mg/l |
| 28 Nov 2025, 09:49 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Oct 2025, 11:02 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Sep 2025, 09:54 | 0.04 | 0.04 mg/l |
| 6 Aug 2025, 12:16 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Jul 2025, 13:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Jun 2025, 10:59 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 May 2025, 14:06 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Apr 2025, 16:38 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.792 mg/l
Sampled 26 Aug 2026, 36 days ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 26 Aug 2026, 10:41 | 0.792 | 0.792 mg/l |
| 24 Jul 2026, 09:16 | 0.596 | 0.596 mg/l |
| 30 Jun 2026, 11:20 | 0.696 | 0.696 mg/l |
| 27 May 2026, 08:24 | 0.984 | 0.984 mg/l |
| 30 Apr 2026, 11:58 | 0.586 | 0.586 mg/l |
| 27 Mar 2026, 10:31 | 1.09 | 1.09 mg/l |
| 25 Feb 2026, 10:16 | 1.1 | 1.1 mg/l |
| 29 Jan 2026, 10:17 | 1.19 | 1.19 mg/l |
| 18 Dec 2025, 10:35 | 1.1 | 1.1 mg/l |
| 28 Nov 2025, 09:49 | 1.1 | 1.1 mg/l |
| 16 Oct 2025, 11:02 | 0.976 | 0.976 mg/l |
| 12 Sep 2025, 09:54 | 1.09 | 1.09 mg/l |
| 6 Aug 2025, 12:16 | 0.964 | 0.964 mg/l |
| 16 Jul 2025, 13:45 | 1.38 | 1.38 mg/l |
| 17 Jun 2025, 10:59 | 0.986 | 0.986 mg/l |
| 6 May 2025, 14:06 | 0.805 | 0.805 mg/l |
| 7 Apr 2025, 16:38 | 0.536 | 0.536 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.07 mg/l
Sampled 26 Aug 2026, 36 days ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 26 Aug 2026, 10:41 | 0.07 | 0.07 mg/l |
| 24 Jul 2026, 09:16 | 0.058 | 0.058 mg/l |
| 30 Jun 2026, 11:20 | 0.047 | 0.047 mg/l |
| 27 May 2026, 08:24 | 0.048 | 0.048 mg/l |
| 30 Apr 2026, 11:58 | 0.01 | 0.01 mg/l |
| 27 Mar 2026, 10:31 | 0.03 | 0.03 mg/l |
| 25 Feb 2026, 10:16 | 0.033 | 0.033 mg/l |
| 29 Jan 2026, 10:17 | 0.028 | 0.028 mg/l |
| 18 Dec 2025, 10:35 | 0.043 | 0.043 mg/l |
| 28 Nov 2025, 09:49 | 0.032 | 0.032 mg/l |
| 16 Oct 2025, 11:02 | 0.033 | 0.033 mg/l |
| 12 Sep 2025, 09:54 | 0.057 | 0.057 mg/l |
| 6 Aug 2025, 12:16 | 0.062 | 0.062 mg/l |
| 16 Jul 2025, 13:45 | 0.057 | 0.057 mg/l |
| 17 Jun 2025, 10:59 | 0.05 | 0.05 mg/l |
| 6 May 2025, 14:06 | 0.041 | 0.041 mg/l |
| 7 Apr 2025, 16:38 | 0.019 | 0.019 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
391 µS/cm
Sampled 26 Aug 2026, 36 days ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 26 Aug 2026, 10:41 | 391 | 391 µS/cm |
| 24 Jul 2026, 09:16 | 409 | 409 µS/cm |
| 30 Jun 2026, 11:20 | 343 | 343 µS/cm |
| 27 May 2026, 08:24 | 326 | 326 µS/cm |
| 30 Apr 2026, 11:58 | 331 | 331 µS/cm |
| 27 Mar 2026, 10:31 | 270 | 270 µS/cm |
| 25 Feb 2026, 10:16 | 235 | 235 µS/cm |
| 29 Jan 2026, 10:17 | 259 | 259 µS/cm |
| 18 Dec 2025, 10:35 | 158 | 158 µS/cm |
| 28 Nov 2025, 09:49 | 267 | 267 µS/cm |
| 16 Oct 2025, 11:02 | 313 | 313 µS/cm |
| 12 Sep 2025, 09:54 | 265 | 265 µS/cm |
| 6 Aug 2025, 12:16 | 335 | 335 µS/cm |
| 16 Jul 2025, 13:45 | 273 | 273 µS/cm |
| 17 Jun 2025, 10:59 | 346 | 346 µS/cm |
| 6 May 2025, 14:06 | 404 | 404 µS/cm |
| 7 Apr 2025, 16:38 | 365 | 365 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 | 17 | Apr 2025 – Aug 2026 | 99.7% 26 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 17 | Apr 2025 – Aug 2026 | 10.1 mg/l 26 Aug 2026 |
| Temperature of Water 0076 | River water | 17 | Apr 2025 – Aug 2026 | 14.8 °C 26 Aug 2026 |
| pH 0061 | River water | 17 | Apr 2025 – Aug 2026 | 7.96 26 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 17 | Apr 2025 – Aug 2026 | 0.08 mg/l 26 Aug 2026 |
| Nitrate as N 0117 | River water | 17 | Apr 2025 – Aug 2026 | 0.792 mg/l 26 Aug 2026 |
| Orthophosphate, reactive as P 0180 | River water | 17 | Apr 2025 – Aug 2026 | 0.07 mg/l 26 Aug 2026 |
| Conductivity at 25 C 0077 | River water | 17 | Apr 2025 – Aug 2026 | 391 µS/cm 26 Aug 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 17 | Apr 2025 – Aug 2026 | 86 mg/l 26 Aug 2026 |
| Ammonia un-ionised as N 0119 | River water | 17 | Apr 2025 – Aug 2026 | 0.00189 mg/l 26 Aug 2026 |
| BOD : 5 Day ATU 0085 | River water | 24 | Jun 2024 – May 2026 | 1.2 mg/l 27 May 2026 |
| Chloride 0172 | River water | 12 | Apr 2025 – Mar 2026 | 23 mg/l 27 Mar 2026 |
| Nitrite as N 0118 | River water | 17 | Apr 2025 – Aug 2026 | 0.0083 mg/l 26 Aug 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 17 | Apr 2025 – Aug 2026 | 0.8 mg/l 26 Aug 2026 |
| Solids, Suspended at 105 C 0135 | River water | 12 | Apr 2025 – Mar 2026 | 9.2 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.