Mine Drain upstream of Rookery Brook
EA name: MINE DRAIN U/S ROOKERY BROOK
Environment Agency sampling point SW-70633212 · 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
- 25 Mar 2026, 13:286 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
- 25 since 24 Oct 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 283528, 86585As published, to the nearest 1 m. Open in a map
- River, by its own name
- Mine Drain
- River, by the map
- Not placedIts name gives Mine Drain; the only line close by, 7 m away, is Rookery Brook and is not traced into it. The river map cannot say which watercourse this is.
- Next gauge downstream
- Not known
- Why it was sampled
- Monitoring (national agency policy) (24 samples)
Planned investigation (local monitoring) (1 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
93.2%
Sampled 25 Mar 2026, 6 months ago · 21 results banked
Also measured in percentage on another sample material (2ZZZ): 3 results, kept apart (see the table).
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 25 Mar 2026, 13:28 | 93.2 | 93.2% |
| 19 Feb 2026, 13:58 | 92.8 | 92.8% |
| 19 Jan 2026, 13:37 | 91.8 | 91.8% |
| 10 Dec 2025, 13:25 | 92.6 | 92.6% |
| 21 Nov 2025, 11:25 | 91.9 | 91.9% |
| 19 Nov 2025, 13:49 | 93.7 | 93.7% |
| 22 Oct 2025, 13:36 | 89.9 | 89.9% |
| 21 Oct 2025, 11:17 | 90.4 | 90.4% |
| 16 Sep 2025, 13:41 | 91.5 | 91.5% |
| 15 Sep 2025, 11:27 | 91.7 | 91.7% |
| 14 Aug 2025, 11:22 | 89.9 | 89.9% |
| 13 Aug 2025, 14:39 | 91.3 | 91.3% |
| 24 Jul 2025, 13:33 | 91.1 | 91.1% |
| 23 Jul 2025, 11:32 | 90.6 | 90.6% |
| 17 Jun 2025, 13:36 | 92.9 | 92.9% |
| 31 Mar 2025, 14:55 | 100.4 | 100.4% |
| 24 Feb 2025, 14:40 | 96 | 96% |
| 31 Jan 2025, 13:42 | 97.9 | 97.9% |
| 18 Dec 2024, 14:01 | 95.8 | 95.8% |
| 20 Nov 2024, 13:40 | 95.3 | 95.3% |
| 24 Oct 2024, 14:40 | 95.4 | 95.4% |
Water temperature
code 0076 · °C
10.2 °C
Sampled 25 Mar 2026, 6 months ago · 21 results banked
Also measured in celsius on another sample material (2ZZZ): 3 results, kept apart (see the table).
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 25 Mar 2026, 13:28 | 10.2 | 10.2 °C |
| 19 Feb 2026, 13:58 | 9.3 | 9.3 °C |
| 19 Jan 2026, 13:37 | 8.5 | 8.5 °C |
| 10 Dec 2025, 13:25 | 10.9 | 10.9 °C |
| 21 Nov 2025, 11:25 | 7 | 7 °C |
| 19 Nov 2025, 13:49 | 9.5 | 9.5 °C |
| 22 Oct 2025, 13:36 | 12 | 12 °C |
| 21 Oct 2025, 11:17 | 12.4 | 12.4 °C |
| 16 Sep 2025, 13:41 | 14.4 | 14.4 °C |
| 15 Sep 2025, 11:27 | 14.2 | 14.2 °C |
| 14 Aug 2025, 11:22 | 16.2 | 16.2 °C |
| 13 Aug 2025, 14:39 | 16.6 | 16.6 °C |
| 24 Jul 2025, 13:33 | 16.5 | 16.5 °C |
| 23 Jul 2025, 11:32 | 16 | 16 °C |
| 17 Jun 2025, 13:36 | 15.8 | 15.8 °C |
| 31 Mar 2025, 14:55 | 11.4 | 11.4 °C |
| 24 Feb 2025, 14:40 | 10.7 | 10.7 °C |
| 31 Jan 2025, 13:42 | 8.8 | 8.8 °C |
| 18 Dec 2024, 14:01 | 10.7 | 10.7 °C |
| 20 Nov 2024, 13:40 | 8.1 | 8.1 °C |
| 24 Oct 2024, 14:40 | 13 | 13 °C |
pH
code 0061
3.7
Sampled 25 Mar 2026, 6 months ago · 22 results banked
Also measured in ph units on another sample material (2ZZZ): 3 results, kept apart (see the table).
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 25 Mar 2026, 13:28 | 3.7 | 3.7 |
| 19 Feb 2026, 13:58 | 3.5 | 3.5 |
| 19 Jan 2026, 13:37 | 3.3 | 3.3 |
| 10 Dec 2025, 13:25 | 3.3 | 3.3 |
| 21 Nov 2025, 11:25 | 3.3 | 3.3 |
| 19 Nov 2025, 13:49 | 3.2 | 3.2 |
| 22 Oct 2025, 13:36 | 3.2 | 3.2 |
| 21 Oct 2025, 11:17 | 3.3 | 3.3 |
| 16 Sep 2025, 13:41 | 3.2 | 3.2 |
| 15 Sep 2025, 11:27 | 3.2 | 3.2 |
| 14 Aug 2025, 11:22 | 3.2 | 3.2 |
| 13 Aug 2025, 14:39 | 3.2 | 3.2 |
| 24 Jul 2025, 13:33 | 3.2 | 3.2 |
| 23 Jul 2025, 11:32 | 3.2 | 3.2 |
| 17 Jun 2025, 13:36 | 3.2 | 3.2 |
| 23 May 2025, 12:21 | 3.3 | 3.3 |
| 31 Mar 2025, 14:55 | 3.4 | 3.4 |
| 24 Feb 2025, 14:40 | 3.4 | 3.4 |
| 31 Jan 2025, 13:42 | 3.3 | 3.3 |
| 18 Dec 2024, 14:01 | 3.3 | 3.3 |
| 20 Nov 2024, 13:40 | 3.5 | 3.5 |
| 24 Oct 2024, 14:40 | 3.2 | 3.2 |
Conductivity
at 25 °C · code 0077 · µS/cm
605 µS/cm
Sampled 25 Mar 2026, 6 months ago · 21 results banked
Also measured in microsiemens per centimetre on another sample material (2ZZZ): 3 results, kept apart (see the table).
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 25 Mar 2026, 13:28 | 605 | 605 µS/cm |
| 19 Feb 2026, 13:58 | 468 | 468 µS/cm |
| 19 Jan 2026, 13:37 | 569 | 569 µS/cm |
| 10 Dec 2025, 13:25 | 559 | 559 µS/cm |
| 21 Nov 2025, 11:25 | 659 | 659 µS/cm |
| 19 Nov 2025, 13:49 | 674 | 674 µS/cm |
| 22 Oct 2025, 13:36 | 718 | 718 µS/cm |
| 21 Oct 2025, 11:17 | 633 | 633 µS/cm |
| 16 Sep 2025, 13:41 | 760 | 760 µS/cm |
| 15 Sep 2025, 11:27 | 754 | 754 µS/cm |
| 14 Aug 2025, 11:22 | 782 | 782 µS/cm |
| 13 Aug 2025, 14:39 | 808 | 808 µS/cm |
| 24 Jul 2025, 13:33 | 776 | 776 µS/cm |
| 23 Jul 2025, 11:32 | 757 | 757 µS/cm |
| 17 Jun 2025, 13:36 | 671 | 671 µS/cm |
| 31 Mar 2025, 14:55 | 568 | 568 µS/cm |
| 24 Feb 2025, 14:40 | 512 | 512 µS/cm |
| 31 Jan 2025, 13:42 | 564 | 564 µS/cm |
| 18 Dec 2024, 14:01 | 604 | 604 µS/cm |
| 20 Nov 2024, 13:40 | 579 | 579 µS/cm |
| 24 Oct 2024, 14:40 | 645 | 645 µS/cm |
Everything measured here
46 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 74 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 21 | Oct 2024 – Mar 2026 | 93.2% 25 Mar 2026 |
| Oxygen, Dissolved, % Saturation 9901 | Any water | 3 | Apr 2025 – Jun 2025 | 98.6% 13 Jun 2025 |
| Temperature of Water 0076 | River water | 21 | Oct 2024 – Mar 2026 | 10.2 °C 25 Mar 2026 |
| Temperature of Water 0076 | Any water | 3 | Apr 2025 – Jun 2025 | 15.6 °C 13 Jun 2025 |
| pH 0061 | River water | 22 | Oct 2024 – Mar 2026 | 3.7 25 Mar 2026 |
| pH 0061 | Any water | 3 | Apr 2025 – Jun 2025 | 3.1 13 Jun 2025 |
| Conductivity at 25 C 0077 | River water | 21 | Oct 2024 – Mar 2026 | 605 µS/cm 25 Mar 2026 |
| Conductivity at 25 C 0077 | Any water | 3 | Apr 2025 – Jun 2025 | 644 µS/cm 13 Jun 2025 |
| Barium, Dissolved 9446 | River water | 22 | Oct 2024 – Mar 2026 | 27 µg/l 25 Mar 2026 |
| Boron, Dissolved 9447 | River water | 22 | Oct 2024 – Mar 2026 | below 100 µg/l 25 Mar 2026 |
| Cadmium 0108 | River water | 22 | Oct 2024 – Mar 2026 | 45 µg/l 25 Mar 2026 |
| Cadmium, Dissolved 0106 | River water | 22 | Oct 2024 – Mar 2026 | 46 µg/l 25 Mar 2026 |
| Calcium, Dissolved 0239 | River water | 22 | Oct 2024 – Mar 2026 | 21 mg/l 25 Mar 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 22 | Oct 2024 – Mar 2026 | 0.7 mg/l 25 Mar 2026 |
| Copper 6452 | River water | 22 | Oct 2024 – Mar 2026 | 34 µg/l 25 Mar 2026 |
| Copper, Dissolved 6450 | River water | 22 | Oct 2024 – Mar 2026 | 37 µg/l 25 Mar 2026 |
| Hardness, Total as CaCO3 0158 | River water | 22 | Oct 2024 – Mar 2026 | 89.1 mg/l 25 Mar 2026 |
| Iron, Dissolved 6460 | River water | 22 | Oct 2024 – Mar 2026 | 4400 µg/l 25 Mar 2026 |
| Lead 0050 | River water | 22 | Oct 2024 – Mar 2026 | 1700 µg/l 25 Mar 2026 |
| Lead, Dissolved 0052 | River water | 22 | Oct 2024 – Mar 2026 | 1700 µg/l 25 Mar 2026 |
| Lithium, Dissolved 4201 | River water | 22 | Oct 2024 – Mar 2026 | below 100 µg/l 25 Mar 2026 |
| Magnesium, Dissolved 0235 | River water | 22 | Oct 2024 – Mar 2026 | 8.9 mg/l 25 Mar 2026 |
| Manganese, Dissolved 6458 | River water | 22 | Oct 2024 – Mar 2026 | 6200 µg/l 25 Mar 2026 |
| Nickel 6462 | River water | 22 | Oct 2024 – Mar 2026 | 79 µg/l 25 Mar 2026 |
| Nickel, Dissolved 3410 | River water | 22 | Oct 2024 – Mar 2026 | 78 µg/l 25 Mar 2026 |
| pH : In Situ 3169 | River water | 18 | Dec 2024 – Mar 2026 | 3.19 25 Mar 2026 |
| Potassium, Dissolved 0209 | River water | 22 | Oct 2024 – Mar 2026 | 4.1 mg/l 25 Mar 2026 |
| Sodium, Dissolved 0205 | River water | 22 | Oct 2024 – Mar 2026 | 17 mg/l 25 Mar 2026 |
| Solids, Suspended at 105 C 0135 | River water | 22 | Oct 2024 – Mar 2026 | below 3 mg/l 25 Mar 2026 |
| Strontium, Filtered 6693 | River water | 22 | Oct 2024 – Mar 2026 | 110 µg/l 25 Mar 2026 |
| Sulphate, Dissolved as SO4 7859 | River water | 22 | Oct 2024 – Mar 2026 | 150 mg/l 25 Mar 2026 |
| Zinc 6455 | River water | 22 | Oct 2024 – Mar 2026 | 8300 µg/l 25 Mar 2026 |
| Zinc, Dissolved 3408 | River water | 22 | Oct 2024 – Mar 2026 | 8600 µg/l 25 Mar 2026 |
| Aluminium 6057 | Any water | 1 | Apr 2025 – Apr 2025 | 670 µg/l 24 Apr 2025 |
| Aluminium, Dissolved 6037 | Any water | 1 | Apr 2025 – Apr 2025 | 660 µg/l 24 Apr 2025 |
| Arsenic 6046 | Any water | 1 | Apr 2025 – Apr 2025 | below 1 µg/l 24 Apr 2025 |
| Arsenic, Dissolved 6045 | Any water | 1 | Apr 2025 – Apr 2025 | below 1 µg/l 24 Apr 2025 |
| Barium 6062 | Any water | 1 | Apr 2025 – Apr 2025 | 43 µg/l 24 Apr 2025 |
| Barium, Dissolved 9446 | Any water | 3 | Apr 2025 – Jun 2025 | 32 µg/l 13 Jun 2025 |
| Boron 6059 | Any water | 1 | Apr 2025 – Apr 2025 | below 100 µg/l 24 Apr 2025 |
| Boron, Dissolved 9447 | Any water | 3 | Apr 2025 – Jun 2025 | below 100 µg/l 13 Jun 2025 |
| Cadmium 0108 | Any water | 3 | Apr 2025 – Jun 2025 | 59 µg/l 13 Jun 2025 |
| Cadmium, Dissolved 0106 | Any water | 3 | Apr 2025 – Jun 2025 | 60 µg/l 13 Jun 2025 |
| Calcium 0241 | Any water | 1 | Apr 2025 – Apr 2025 | 21 mg/l 24 Apr 2025 |
| Calcium, Dissolved 0239 | Any water | 3 | Apr 2025 – Jun 2025 | 21 mg/l 13 Jun 2025 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | Any water | 3 | Apr 2025 – Jun 2025 | 1.1 mg/l 13 Jun 2025 |
| Chromium 3164 | Any water | 1 | Apr 2025 – Apr 2025 | below 0.5 µg/l 24 Apr 2025 |
| Chromium, Dissolved 3409 | Any water | 1 | Apr 2025 – Apr 2025 | below 0.5 µg/l 24 Apr 2025 |
| Copper 6452 | Any water | 3 | Apr 2025 – Jun 2025 | 67 µg/l 13 Jun 2025 |
| Copper, Dissolved 6450 | Any water | 3 | Apr 2025 – Jun 2025 | 68 µg/l 13 Jun 2025 |
| Hardness, Total as CaCO3 0158 | Any water | 3 | Apr 2025 – Jun 2025 | 89.9 mg/l 13 Jun 2025 |
| Iron 6051 | Any water | 1 | Apr 2025 – Apr 2025 | 2100 µg/l 24 Apr 2025 |
| Iron, Dissolved 6460 | Any water | 3 | Apr 2025 – Jun 2025 | 2500 µg/l 13 Jun 2025 |
| Lead 0050 | Any water | 2 | May 2025 – Jun 2025 | 2000 µg/l 13 Jun 2025 |
| Lead, Dissolved 0052 | Any water | 3 | Apr 2025 – Jun 2025 | 2000 µg/l 13 Jun 2025 |
| Lithium 6064 | Any water | 1 | Apr 2025 – Apr 2025 | below 100 µg/l 24 Apr 2025 |
| Lithium, Dissolved 4201 | Any water | 3 | Apr 2025 – Jun 2025 | below 100 µg/l 13 Jun 2025 |
| Magnesium 0237 | Any water | 1 | Apr 2025 – Apr 2025 | 8.8 mg/l 24 Apr 2025 |
| Magnesium, Dissolved 0235 | Any water | 3 | Apr 2025 – Jun 2025 | 9.1 mg/l 13 Jun 2025 |
| Manganese 6050 | Any water | 1 | Apr 2025 – Apr 2025 | 5700 µg/l 24 Apr 2025 |
| Manganese, Dissolved 6458 | Any water | 3 | Apr 2025 – Jun 2025 | 7200 µg/l 13 Jun 2025 |
| Nickel 6462 | Any water | 2 | May 2025 – Jun 2025 | 92 µg/l 13 Jun 2025 |
| Nickel, Dissolved 3410 | Any water | 3 | Apr 2025 – Jun 2025 | 92 µg/l 13 Jun 2025 |
| Potassium 0211 | Any water | 1 | Apr 2025 – Apr 2025 | 4 mg/l 24 Apr 2025 |
| Potassium, Dissolved 0209 | Any water | 3 | Apr 2025 – Jun 2025 | 4 mg/l 13 Jun 2025 |
| Sodium 0207 | Any water | 1 | Apr 2025 – Apr 2025 | 16 mg/l 24 Apr 2025 |
| Sodium, Dissolved 0205 | Any water | 3 | Apr 2025 – Jun 2025 | 16 mg/l 13 Jun 2025 |
| Solids, Suspended at 105 C 0135 | Any water | 3 | Apr 2025 – Jun 2025 | below 3 mg/l 13 Jun 2025 |
| Strontium 6063 | Any water | 1 | Apr 2025 – Apr 2025 | 110 µg/l 24 Apr 2025 |
| Strontium, Filtered 6693 | Any water | 3 | Apr 2025 – Jun 2025 | 120 µg/l 13 Jun 2025 |
| Sulphate as SO4 0183 | Any water | 1 | Apr 2025 – Apr 2025 | 150 mg/l 24 Apr 2025 |
| Sulphate, Dissolved as SO4 7859 | Any water | 3 | Apr 2025 – Jun 2025 | 160 mg/l 13 Jun 2025 |
| Zinc 6455 | Any water | 3 | Apr 2025 – Jun 2025 | 10000 µg/l 13 Jun 2025 |
| Zinc, Dissolved 3408 | Any water | 3 | Apr 2025 – Jun 2025 | 10000 µg/l 13 Jun 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.