Doveholes Tunnel Drain above the confluence with tributary of Warm Brook
EA name: DOVEHOLES TUNNEL DRAIN PTC TRIB WARM BK (also listed as “DOVEHOLES TUNNEL DRAIN PTC OF TRIB WARM BROOK”)
Environment Agency sampling point NW-88025946 · 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
- 23 Mar 2026, 14:116 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
- 12 since 3 Apr 2025 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Planned investigation (local monitoring)
- Where
- National Grid 406001, 379359As published, to the nearest 1 m. Open in a map
- River, by its own name
- tributary of Warm Brook
- River, by the map
- Warm BrookOn an unmapped tributary: placed where it joins the river its name gives, 20 m from the line.
- Next gauge downstream
- Goytside Farm On the River Goyt · 11 km along the river
- Why it was sampled
- Planned investigation (local monitoring) (12 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
102.2%
Sampled 23 Mar 2026, 6 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 23 Mar 2026, 14:11 | 102.2 | 102.2% |
| 25 Feb 2026, 11:40 | 102.1 | 102.1% |
| 15 Jan 2026, 11:05 | 99.9 | 99.9% |
| 5 Dec 2025, 12:34 | 104 | 104% |
| 7 Nov 2025, 12:32 | 102 | 102% |
| 3 Oct 2025, 09:53 | 101.7 | 101.7% |
| 19 Sep 2025, 12:09 | 100.5 | 100.5% |
| 4 Aug 2025, 12:57 | 99.6 | 99.6% |
| 9 Jul 2025, 13:25 | 98.3 | 98.3% |
| 3 Jun 2025, 12:15 | 101.8 | 101.8% |
| 16 May 2025, 13:31 | 105.8 | 105.8% |
| 3 Apr 2025, 13:36 | 99.6 | 99.6% |
Dissolved oxygen
as O2 · code 9924 · mg/l
11.9 mg/l
Sampled 23 Mar 2026, 6 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 23 Mar 2026, 14:11 | 11.9 | 11.9 mg/l |
| 25 Feb 2026, 11:40 | 11.6 | 11.6 mg/l |
| 15 Jan 2026, 11:05 | 12.3 | 12.3 mg/l |
| 5 Dec 2025, 12:34 | 12.3 | 12.3 mg/l |
| 7 Nov 2025, 12:32 | 11.4 | 11.4 mg/l |
| 3 Oct 2025, 09:53 | 11.2 | 11.2 mg/l |
| 19 Sep 2025, 12:09 | 10.9 | 10.9 mg/l |
| 4 Aug 2025, 12:57 | 10.9 | 10.9 mg/l |
| 9 Jul 2025, 13:25 | 10.7 | 10.7 mg/l |
| 3 Jun 2025, 12:15 | 11.2 | 11.2 mg/l |
| 16 May 2025, 13:31 | 11.7 | 11.7 mg/l |
| 3 Apr 2025, 13:36 | 11.5 | 11.5 mg/l |
Water temperature
code 0076 · °C
8.7 °C
Sampled 23 Mar 2026, 6 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 23 Mar 2026, 14:11 | 8.7 | 8.7 °C |
| 25 Feb 2026, 11:40 | 9.6 | 9.6 °C |
| 15 Jan 2026, 11:05 | 6.5 | 6.5 °C |
| 5 Dec 2025, 12:34 | 7.9 | 7.9 °C |
| 7 Nov 2025, 12:32 | 10.5 | 10.5 °C |
| 3 Oct 2025, 09:53 | 10.9 | 10.9 °C |
| 19 Sep 2025, 12:09 | 11.6 | 11.6 °C |
| 4 Aug 2025, 12:57 | 11.3 | 11.3 °C |
| 9 Jul 2025, 13:25 | 11.4 | 11.4 °C |
| 3 Jun 2025, 12:15 | 10.9 | 10.9 °C |
| 16 May 2025, 13:31 | 10.8 | 10.8 °C |
| 3 Apr 2025, 13:36 | 9.1 | 9.1 °C |
pH
code 0061
8.54
Sampled 23 Mar 2026, 6 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 23 Mar 2026, 14:11 | 8.54 | 8.54 |
| 25 Feb 2026, 11:40 | 8.38 | 8.38 |
| 15 Jan 2026, 11:05 | 8.31 | 8.31 |
| 5 Dec 2025, 12:34 | 8.13 | 8.13 |
| 7 Nov 2025, 12:32 | 8.08 | 8.08 |
| 3 Oct 2025, 09:53 | 8.17 | 8.17 |
| 19 Sep 2025, 12:09 | 8.18 | 8.18 |
| 4 Aug 2025, 12:57 | 8.68 | 8.68 |
| 9 Jul 2025, 13:25 | 8.73 | 8.73 |
| 3 Jun 2025, 12:15 | 8.32 | 8.32 |
| 16 May 2025, 13:31 | 8.95 | 8.95 |
| 3 Apr 2025, 13:36 | 9.14 | 9.14 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.032 mg/l
Sampled 23 Mar 2026, 6 months ago · 11 results banked
Every result (11)
| Sampled | Result as published | Reads as |
|---|---|---|
| 23 Mar 2026, 14:11 | 0.032 | 0.032 mg/l |
| 25 Feb 2026, 11:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Jan 2026, 11:05 | 0.095 | 0.095 mg/l |
| 5 Dec 2025, 12:34 | 0.072 | 0.072 mg/l |
| 7 Nov 2025, 12:32 | 0.11 | 0.11 mg/l |
| 3 Oct 2025, 09:53 | 0.036 | 0.036 mg/l |
| 19 Sep 2025, 12:09 | 0.52 | 0.52 mg/l |
| 4 Aug 2025, 12:57 | 0.44 | 0.44 mg/l |
| 9 Jul 2025, 13:25 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Jun 2025, 12:15 | 0.23 | 0.23 mg/l |
| 16 May 2025, 13:31 | 0.034 | 0.034 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
2.46 mg/l
Sampled 23 Mar 2026, 6 months ago · 11 results banked
Every result (11)
| Sampled | Result as published | Reads as |
|---|---|---|
| 23 Mar 2026, 14:11 | 2.46 | 2.46 mg/l |
| 25 Feb 2026, 11:40 | 2.47 | 2.47 mg/l |
| 15 Jan 2026, 11:05 | 2.66 | 2.66 mg/l |
| 5 Dec 2025, 12:34 | 2.47 | 2.47 mg/l |
| 7 Nov 2025, 12:32 | 2.66 | 2.66 mg/l |
| 3 Oct 2025, 09:53 | 3.16 | 3.16 mg/l |
| 19 Sep 2025, 12:09 | 2.97 | 2.97 mg/l |
| 4 Aug 2025, 12:57 | 4.13 | 4.13 mg/l |
| 9 Jul 2025, 13:25 | 3.06 | 3.06 mg/l |
| 3 Jun 2025, 12:15 | 5.48 | 5.48 mg/l |
| 16 May 2025, 13:31 | 3.44 | 3.44 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.072 mg/l
Sampled 23 Mar 2026, 6 months ago · 11 results banked
Every result (11)
| Sampled | Result as published | Reads as |
|---|---|---|
| 23 Mar 2026, 14:11 | 0.072 | 0.072 mg/l |
| 25 Feb 2026, 11:40 | 0.067 | 0.067 mg/l |
| 15 Jan 2026, 11:05 | 0.077 | 0.077 mg/l |
| 5 Dec 2025, 12:34 | 0.06 | 0.06 mg/l |
| 7 Nov 2025, 12:32 | 0.11 | 0.11 mg/l |
| 3 Oct 2025, 09:53 | 0.39 | 0.39 mg/l |
| 19 Sep 2025, 12:09 | 0.31 | 0.31 mg/l |
| 4 Aug 2025, 12:57 | 0.68 | 0.68 mg/l |
| 9 Jul 2025, 13:25 | 0.55 | 0.55 mg/l |
| 3 Jun 2025, 12:15 | 0.9 | 0.9 mg/l |
| 16 May 2025, 13:31 | 0.47 | 0.47 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
386 µS/cm
Sampled 23 Mar 2026, 6 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 23 Mar 2026, 14:11 | 386 | 386 µS/cm |
| 25 Feb 2026, 11:40 | 351 | 351 µS/cm |
| 15 Jan 2026, 11:05 | 375 | 375 µS/cm |
| 5 Dec 2025, 12:34 | 341 | 341 µS/cm |
| 7 Nov 2025, 12:32 | 341 | 341 µS/cm |
| 3 Oct 2025, 09:53 | 354 | 354 µS/cm |
| 19 Sep 2025, 12:09 | 373 | 373 µS/cm |
| 4 Aug 2025, 12:57 | 494 | 494 µS/cm |
| 9 Jul 2025, 13:25 | 484 | 484 µS/cm |
| 3 Jun 2025, 12:15 | 417 | 417 µS/cm |
| 16 May 2025, 13:31 | 451 | 451 µS/cm |
| 3 Apr 2025, 13:36 | 423 | 423 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 | 12 | Apr 2025 – Mar 2026 | 102.2% 23 Mar 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 12 | Apr 2025 – Mar 2026 | 11.9 mg/l 23 Mar 2026 |
| Temperature of Water 0076 | River water | 12 | Apr 2025 – Mar 2026 | 8.7 °C 23 Mar 2026 |
| pH 0061 | River water | 12 | Apr 2025 – Mar 2026 | 8.54 23 Mar 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 11 | May 2025 – Mar 2026 | 0.032 mg/l 23 Mar 2026 |
| Nitrate as N 0117 | River water | 11 | May 2025 – Mar 2026 | 2.46 mg/l 23 Mar 2026 |
| Orthophosphate, reactive as P 0180 | River water | 11 | May 2025 – Mar 2026 | 0.072 mg/l 23 Mar 2026 |
| Conductivity at 25 C 0077 | River water | 12 | Apr 2025 – Mar 2026 | 386 µS/cm 23 Mar 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 11 | May 2025 – Mar 2026 | 130 mg/l 23 Mar 2026 |
| Ammonia un-ionised as N 0119 | River water | 11 | May 2025 – Mar 2026 | 0.00053 mg/l 23 Mar 2026 |
| BOD : 5 Day ATU 0085 | River water | 10 | May 2025 – Mar 2026 | 1.1 mg/l 23 Mar 2026 |
| Chloride 0172 | River water | 11 | May 2025 – Mar 2026 | 20 mg/l 23 Mar 2026 |
| Nitrite as N 0118 | River water | 11 | May 2025 – Mar 2026 | 0.042 mg/l 23 Mar 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 11 | May 2025 – Mar 2026 | 2.5 mg/l 23 Mar 2026 |
| Solids, Suspended at 105 C 0135 | River water | 11 | May 2025 – Mar 2026 | 36 mg/l 23 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.