Cannop Brook New Mills
EA name: CANNOP BROOK NEW MILLS
Environment Agency sampling point MD-00259340 · 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
- 14 Jul 2026, 13:293 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 21 since 3 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 362950, 204451As published, to the nearest 1 m. Open in a map
- River, by its own name
- Its name does not give one
- River, by the map
- The LydPlaced by position alone, on a line whose map name differs from its own, 8 m from the line.
- Next gauge downstream
- Lydney On the River Lyd · 1.0 km along the river
- Nearest gauge upstream
- Parkend On the River Lyd · 3.8 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (16 samples)
Monitoring (national agency policy) (5 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
102.1%
Sampled 5 Mar 2025, 19 months ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 5 Mar 2025, 11:55 | 102.1 | 102.1% |
| 19 Feb 2025, 12:11 | 101.7 | 101.7% |
| 29 Jan 2025, 11:11 | 100.7 | 100.7% |
| 3 Dec 2024, 12:16 | 100.2 | 100.2% |
| 14 Nov 2024, 14:31 | 98.1 | 98.1% |
| 8 Oct 2024, 10:41 | 97.2 | 97.2% |
| 11 Sep 2024, 09:20 | 96.2 | 96.2% |
| 8 Aug 2024, 10:03 | 96.3 | 96.3% |
| 1 Jul 2024, 11:15 | 99.2 | 99.2% |
| 14 Jun 2024, 14:15 | 99.1 | 99.1% |
| 4 Mar 2024, 13:24 | 96.3 | 96.3% |
| 15 Feb 2024, 11:29 | 100.8 | 100.8% |
| 29 Jan 2024, 12:04 | 96.3 | 96.3% |
| 7 Dec 2023, 12:14 | 101.5 | 101.5% |
| 7 Nov 2023, 10:46 | 98.6 | 98.6% |
| 3 Oct 2023, 11:18 | 96.3 | 96.3% |
Dissolved oxygen
as O2 · code 9924 · mg/l
11.8 mg/l
Sampled 5 Mar 2025, 19 months ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 5 Mar 2025, 11:55 | 11.8 | 11.8 mg/l |
| 19 Feb 2025, 12:11 | 12.3 | 12.3 mg/l |
| 29 Jan 2025, 11:11 | 12.2 | 12.2 mg/l |
| 3 Dec 2024, 12:16 | 11.6 | 11.6 mg/l |
| 14 Nov 2024, 14:31 | 10.9 | 10.9 mg/l |
| 8 Oct 2024, 10:41 | 10.4 | 10.4 mg/l |
| 11 Sep 2024, 09:20 | 10.4 | 10.4 mg/l |
| 8 Aug 2024, 10:03 | 9.97 | 9.97 mg/l |
| 1 Jul 2024, 11:15 | 10.3 | 10.3 mg/l |
| 14 Jun 2024, 14:15 | 10.3 | 10.3 mg/l |
| 4 Mar 2024, 13:24 | 11.4 | 11.4 mg/l |
| 15 Feb 2024, 11:29 | 11 | 11 mg/l |
| 29 Jan 2024, 12:04 | 10.7 | 10.7 mg/l |
| 7 Dec 2023, 12:14 | 12 | 12 mg/l |
| 7 Nov 2023, 10:46 | 11.4 | 11.4 mg/l |
| 3 Oct 2023, 11:18 | 10.1 | 10.1 mg/l |
Water temperature
code 0076 · °C
8.8 °C
Sampled 5 Mar 2025, 19 months ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 5 Mar 2025, 11:55 | 8.8 | 8.8 °C |
| 19 Feb 2025, 12:11 | 7.2 | 7.2 °C |
| 29 Jan 2025, 11:11 | 6.9 | 6.9 °C |
| 3 Dec 2024, 12:16 | 9 | 9 °C |
| 14 Nov 2024, 14:31 | 10.6 | 10.6 °C |
| 8 Oct 2024, 10:41 | 12.3 | 12.3 °C |
| 11 Sep 2024, 09:20 | 11.7 | 11.7 °C |
| 8 Aug 2024, 10:03 | 13.7 | 13.7 °C |
| 1 Jul 2024, 11:15 | 13.5 | 13.5 °C |
| 14 Jun 2024, 14:15 | 13.6 | 13.6 °C |
| 4 Mar 2024, 13:24 | 7.9 | 7.9 °C |
| 15 Feb 2024, 11:29 | 11.3 | 11.3 °C |
| 29 Jan 2024, 12:04 | 10.5 | 10.5 °C |
| 7 Dec 2023, 12:14 | 8.1 | 8.1 °C |
| 7 Nov 2023, 10:46 | 8.9 | 8.9 °C |
| 3 Oct 2023, 11:18 | 13 | 13 °C |
pH
code 0061
7.95
Sampled 14 Jul 2026, 3 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Jul 2026, 13:29 | 7.95 | 7.95 |
| 14 Jan 2026, 10:45 | 7.19 | 7.19 |
| 4 Dec 2025, 11:45 | 8.05 | 8.05 |
| 10 Jun 2025, 10:05 | 7.81 | 7.81 |
| 5 Mar 2025, 11:55 | 7.9 | 7.9 |
| 19 Feb 2025, 12:11 | 7.83 | 7.83 |
| 29 Jan 2025, 11:11 | 7.68 | 7.68 |
| 3 Dec 2024, 12:16 | 7.73 | 7.73 |
| 14 Nov 2024, 14:31 | 7.82 | 7.82 |
| 8 Oct 2024, 10:41 | 7.85 | 7.85 |
| 11 Sep 2024, 09:20 | 7.88 | 7.88 |
| 8 Aug 2024, 10:03 | 7.81 | 7.81 |
| 1 Jul 2024, 11:15 | 7.82 | 7.82 |
| 14 Jun 2024, 14:15 | 7.83 | 7.83 |
| 1 May 2024, 12:30 | 7.84 | 7.84 |
| 4 Mar 2024, 13:24 | 7.67 | 7.67 |
| 15 Feb 2024, 11:29 | 7.62 | 7.62 |
| 29 Jan 2024, 12:04 | 7.97 | 7.97 |
| 7 Dec 2023, 12:14 | 7.63 | 7.63 |
| 7 Nov 2023, 10:46 | 7.73 | 7.73 |
| 3 Oct 2023, 11:18 | 7.61 | 7.61 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 5 Mar 2025, 19 months ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 5 Mar 2025, 11:55 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Feb 2025, 12:11 | <0.03 | below 0.03 mg/l (not detected above this) |
| 29 Jan 2025, 11:11 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Dec 2024, 12:16 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Nov 2024, 14:31 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Oct 2024, 10:41 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Sep 2024, 09:20 | 0.038 | 0.038 mg/l |
| 8 Aug 2024, 10:03 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Jul 2024, 11:15 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Jun 2024, 14:15 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Mar 2024, 13:24 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Feb 2024, 11:29 | <0.03 | below 0.03 mg/l (not detected above this) |
| 29 Jan 2024, 12:04 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Dec 2023, 12:14 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Nov 2023, 10:46 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Oct 2023, 11:18 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
1.4 mg/l
Sampled 5 Mar 2025, 19 months ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 5 Mar 2025, 11:55 | 1.4 | 1.4 mg/l |
| 19 Feb 2025, 12:11 | 1.1 | 1.1 mg/l |
| 29 Jan 2025, 11:11 | 1.9 | 1.9 mg/l |
| 3 Dec 2024, 12:16 | 1.8 | 1.8 mg/l |
| 14 Nov 2024, 14:31 | 0.616 | 0.616 mg/l |
| 8 Oct 2024, 10:41 | 1.3 | 1.3 mg/l |
| 11 Sep 2024, 09:20 | 0.756 | 0.756 mg/l |
| 8 Aug 2024, 10:03 | 0.586 | 0.586 mg/l |
| 1 Jul 2024, 11:15 | 0.556 | 0.556 mg/l |
| 14 Jun 2024, 14:15 | 0.586 | 0.586 mg/l |
| 4 Mar 2024, 13:24 | 1.5 | 1.5 mg/l |
| 15 Feb 2024, 11:29 | 2.1 | 2.1 mg/l |
| 29 Jan 2024, 12:04 | 1.1 | 1.1 mg/l |
| 7 Dec 2023, 12:14 | 2.8 | 2.8 mg/l |
| 7 Nov 2023, 10:46 | 1.2 | 1.2 mg/l |
| 3 Oct 2023, 11:18 | 0.806 | 0.806 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
below 0.01 mg/l (not detected above this)
Sampled 5 Mar 2025, 19 months ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 5 Mar 2025, 11:55 | <0.01 | below 0.01 mg/l (not detected above this) |
| 19 Feb 2025, 12:11 | 0.11 | 0.11 mg/l |
| 29 Jan 2025, 11:11 | 0.011 | 0.011 mg/l |
| 3 Dec 2024, 12:16 | <0.01 | below 0.01 mg/l (not detected above this) |
| 14 Nov 2024, 14:31 | <0.01 | below 0.01 mg/l (not detected above this) |
| 8 Oct 2024, 10:41 | <0.01 | below 0.01 mg/l (not detected above this) |
| 11 Sep 2024, 09:20 | 0.01 | 0.01 mg/l |
| 8 Aug 2024, 10:03 | <0.01 | below 0.01 mg/l (not detected above this) |
| 1 Jul 2024, 11:15 | <0.01 | below 0.01 mg/l (not detected above this) |
| 14 Jun 2024, 14:15 | 0.061 | 0.061 mg/l |
| 4 Mar 2024, 13:24 | <0.01 | below 0.01 mg/l (not detected above this) |
| 15 Feb 2024, 11:29 | 0.011 | 0.011 mg/l |
| 29 Jan 2024, 12:04 | <0.01 | below 0.01 mg/l (not detected above this) |
| 7 Dec 2023, 12:14 | 0.015 | 0.015 mg/l |
| 7 Nov 2023, 10:46 | <0.01 | below 0.01 mg/l (not detected above this) |
| 3 Oct 2023, 11:18 | <0.01 | below 0.01 mg/l (not detected above this) |
Conductivity
at 25 °C · code 0077 · µS/cm
566 µS/cm
Sampled 5 Mar 2025, 19 months ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 5 Mar 2025, 11:55 | 566 | 566 µS/cm |
| 19 Feb 2025, 12:11 | 678 | 678 µS/cm |
| 29 Jan 2025, 11:11 | 328 | 328 µS/cm |
| 3 Dec 2024, 12:16 | 423 | 423 µS/cm |
| 14 Nov 2024, 14:31 | 814 | 814 µS/cm |
| 8 Oct 2024, 10:41 | 588 | 588 µS/cm |
| 11 Sep 2024, 09:20 | 879 | 879 µS/cm |
| 8 Aug 2024, 10:03 | 1025 | 1025 µS/cm |
| 1 Jul 2024, 11:15 | 1010 | 1010 µS/cm |
| 14 Jun 2024, 14:15 | 857 | 857 µS/cm |
| 4 Mar 2024, 13:24 | 461 | 461 µS/cm |
| 15 Feb 2024, 11:29 | 389 | 389 µS/cm |
| 29 Jan 2024, 12:04 | 596 | 596 µS/cm |
| 7 Dec 2023, 12:14 | 339 | 339 µS/cm |
| 7 Nov 2023, 10:46 | 540 | 540 µS/cm |
| 3 Oct 2023, 11:18 | 872 | 872 µS/cm |
Everything measured here
18 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 18 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 16 | Oct 2023 – Mar 2025 | 102.1% 5 Mar 2025 |
| Oxygen, Dissolved as O2 9924 | River water | 16 | Oct 2023 – Mar 2025 | 11.8 mg/l 5 Mar 2025 |
| Temperature of Water 0076 | River water | 16 | Oct 2023 – Mar 2025 | 8.8 °C 5 Mar 2025 |
| pH 0061 | River water | 21 | Oct 2023 – Jul 2026 | 7.95 14 Jul 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 16 | Oct 2023 – Mar 2025 | below 0.03 mg/l 5 Mar 2025 |
| Nitrate as N 0117 | River water | 16 | Oct 2023 – Mar 2025 | 1.4 mg/l 5 Mar 2025 |
| Orthophosphate, reactive as P 0180 | River water | 16 | Oct 2023 – Mar 2025 | below 0.01 mg/l 5 Mar 2025 |
| Conductivity at 25 C 0077 | River water | 16 | Oct 2023 – Mar 2025 | 566 µS/cm 5 Mar 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 16 | Oct 2023 – Mar 2025 | 150 mg/l 5 Mar 2025 |
| Ammonia un-ionised as N 0119 | River water | 16 | Oct 2023 – Mar 2025 | below 0.0004 mg/l 5 Mar 2025 |
| Cadmium, Dissolved 0106 | River water | 2 | Oct 2023 – Feb 2024 | 0.016 µg/l 15 Feb 2024 |
| Calcium, Dissolved 0239 | River water | 9 | Oct 2023 – Jul 2026 | 130 mg/l 14 Jul 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 9 | Oct 2023 – Jul 2026 | 1.3 mg/l 14 Jul 2026 |
| Magnesium, Dissolved 0235 | River water | 2 | Oct 2023 – Feb 2024 | 16 mg/l 15 Feb 2024 |
| Nickel : BLM Bioavailable 3878 | River water | 9 | Oct 2023 – Jul 2026 | 4.5 µg/l 14 Jul 2026 |
| Nickel, Dissolved 3410 | River water | 9 | Oct 2023 – Jul 2026 | 7.5 µg/l 14 Jul 2026 |
| Nitrite as N 0118 | River water | 16 | Oct 2023 – Mar 2025 | below 0.004 mg/l 5 Mar 2025 |
| Nitrogen, Total Oxidised as N 0116 | River water | 16 | Oct 2023 – Mar 2025 | 1.4 mg/l 5 Mar 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.