Gilwiskaw Brook - Ashby-de-la-Zouch
EA name: GILWISKAW BROOK - ASHBY-DE-LA-ZOUCH
Environment Agency sampling point MD-58809180 · 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
- 10 Mar 2025, 12:0219 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 8 Oct 2026 and had nothing newer.
- Samples banked
- 15 since 5 Oct 2023 Imported periods: 1 Oct 2023 – 8 Oct 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Planned investigation (local monitoring)
- Where
- National Grid 435667, 316004As published, to the nearest 1 m. Open in a map
- River, by its own name
- Gilwiskaw Brook
- River, by the map
- Gilwiskaw BrookPlaced on the river its name gives, 2 m from the line.
- Next gauge downstream
- Ashby De La Zouch On the Gilwiskaw Brook · 0.6 km along the river
- Why it was sampled
- Planned investigation (local monitoring) (15 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
94.9%
Sampled 10 Mar 2025, 19 months ago · 15 results banked
Every result (15)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Mar 2025, 12:02 | 94.9 | 94.9% |
| 17 Feb 2025, 09:59 | 97 | 97% |
| 27 Jan 2025, 09:56 | 101.8 | 101.8% |
| 4 Nov 2024, 11:37 | 97.6 | 97.6% |
| 8 Oct 2024, 11:09 | 92 | 92% |
| 4 Sep 2024, 13:23 | 90.7 | 90.7% |
| 6 Aug 2024, 11:46 | 91.8 | 91.8% |
| 10 Jul 2024, 08:54 | 97 | 97% |
| 7 Jun 2024, 08:39 | 98.5 | 98.5% |
| 5 Mar 2024, 09:59 | 97.6 | 97.6% |
| 8 Feb 2024, 11:31 | 95.2 | 95.2% |
| 10 Jan 2024, 13:25 | 92.7 | 92.7% |
| 1 Dec 2023, 10:51 | 100.2 | 100.2% |
| 3 Nov 2023, 09:28 | 96.2 | 96.2% |
| 5 Oct 2023, 09:08 | 93 | 93% |
Dissolved oxygen
as O2 · code 9924 · mg/l
11.2 mg/l
Sampled 10 Mar 2025, 19 months ago · 15 results banked
Every result (15)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Mar 2025, 12:02 | 11.2 | 11.2 mg/l |
| 17 Feb 2025, 09:59 | 12.6 | 12.6 mg/l |
| 27 Jan 2025, 09:56 | 12.9 | 12.9 mg/l |
| 4 Nov 2024, 11:37 | 10.7 | 10.7 mg/l |
| 8 Oct 2024, 11:09 | 9.89 | 9.89 mg/l |
| 4 Sep 2024, 13:23 | 9.37 | 9.37 mg/l |
| 6 Aug 2024, 11:46 | 8.89 | 8.89 mg/l |
| 10 Jul 2024, 08:54 | 9.95 | 9.95 mg/l |
| 7 Jun 2024, 08:39 | 10.7 | 10.7 mg/l |
| 5 Mar 2024, 09:59 | 11.6 | 11.6 mg/l |
| 8 Feb 2024, 11:31 | 12.1 | 12.1 mg/l |
| 10 Jan 2024, 13:25 | 11.6 | 11.6 mg/l |
| 1 Dec 2023, 10:51 | 13 | 13 mg/l |
| 3 Nov 2023, 09:28 | 10.9 | 10.9 mg/l |
| 5 Oct 2023, 09:08 | 9.8 | 9.8 mg/l |
Water temperature
code 0076 · °C
8 °C
Sampled 10 Mar 2025, 19 months ago · 15 results banked
Every result (15)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Mar 2025, 12:02 | 8 | 8 °C |
| 17 Feb 2025, 09:59 | 4.3 | 4.3 °C |
| 27 Jan 2025, 09:56 | 5.3 | 5.3 °C |
| 4 Nov 2024, 11:37 | 11.1 | 11.1 °C |
| 8 Oct 2024, 11:09 | 12 | 12 °C |
| 4 Sep 2024, 13:23 | 13.8 | 13.8 °C |
| 6 Aug 2024, 11:46 | 16.8 | 16.8 °C |
| 10 Jul 2024, 08:54 | 14.1 | 14.1 °C |
| 7 Jun 2024, 08:39 | 11.5 | 11.5 °C |
| 5 Mar 2024, 09:59 | 7.7 | 7.7 °C |
| 8 Feb 2024, 11:31 | 5.2 | 5.2 °C |
| 10 Jan 2024, 13:25 | 5.8 | 5.8 °C |
| 1 Dec 2023, 10:51 | 4.3 | 4.3 °C |
| 3 Nov 2023, 09:28 | 9.6 | 9.6 °C |
| 5 Oct 2023, 09:08 | 12.9 | 12.9 °C |
pH
code 0061
8.38
Sampled 10 Mar 2025, 19 months ago · 15 results banked
Every result (15)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Mar 2025, 12:02 | 8.38 | 8.38 |
| 17 Feb 2025, 09:59 | 8.26 | 8.26 |
| 27 Jan 2025, 09:56 | 7.75 | 7.75 |
| 4 Nov 2024, 11:37 | 8.14 | 8.14 |
| 8 Oct 2024, 11:09 | 7.94 | 7.94 |
| 4 Sep 2024, 13:23 | 8.04 | 8.04 |
| 6 Aug 2024, 11:46 | 8.04 | 8.04 |
| 10 Jul 2024, 08:54 | 8.03 | 8.03 |
| 7 Jun 2024, 08:39 | 8.14 | 8.14 |
| 5 Mar 2024, 09:59 | 8.11 | 8.11 |
| 8 Feb 2024, 11:31 | 8.1 | 8.1 |
| 10 Jan 2024, 13:25 | 8.04 | 8.04 |
| 1 Dec 2023, 10:51 | 8.36 | 8.36 |
| 3 Nov 2023, 09:28 | 7.74 | 7.74 |
| 5 Oct 2023, 09:08 | 8.19 | 8.19 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.13 mg/l
Sampled 10 Mar 2025, 19 months ago · 15 results banked
Every result (15)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Mar 2025, 12:02 | 0.13 | 0.13 mg/l |
| 17 Feb 2025, 09:59 | 0.072 | 0.072 mg/l |
| 27 Jan 2025, 09:56 | 0.096 | 0.096 mg/l |
| 4 Nov 2024, 11:37 | 0.094 | 0.094 mg/l |
| 8 Oct 2024, 11:09 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Sep 2024, 13:23 | 0.13 | 0.13 mg/l |
| 6 Aug 2024, 11:46 | 0.062 | 0.062 mg/l |
| 10 Jul 2024, 08:54 | 0.085 | 0.085 mg/l |
| 7 Jun 2024, 08:39 | 0.088 | 0.088 mg/l |
| 5 Mar 2024, 09:59 | 0.054 | 0.054 mg/l |
| 8 Feb 2024, 11:31 | 0.13 | 0.13 mg/l |
| 10 Jan 2024, 13:25 | 0.1 | 0.1 mg/l |
| 1 Dec 2023, 10:51 | 0.1 | 0.1 mg/l |
| 3 Nov 2023, 09:28 | 0.044 | 0.044 mg/l |
| 5 Oct 2023, 09:08 | 0.15 | 0.15 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
6.97 mg/l
Sampled 10 Mar 2025, 19 months ago · 15 results banked
Every result (15)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Mar 2025, 12:02 | 6.97 | 6.97 mg/l |
| 17 Feb 2025, 09:59 | 5.48 | 5.48 mg/l |
| 27 Jan 2025, 09:56 | 4.18 | 4.18 mg/l |
| 4 Nov 2024, 11:37 | 6.07 | 6.07 mg/l |
| 8 Oct 2024, 11:09 | 3.97 | 3.97 mg/l |
| 4 Sep 2024, 13:23 | 7.05 | 7.05 mg/l |
| 6 Aug 2024, 11:46 | 4.07 | 4.07 mg/l |
| 10 Jul 2024, 08:54 | 5.07 | 5.07 mg/l |
| 7 Jun 2024, 08:39 | 6.57 | 6.57 mg/l |
| 5 Mar 2024, 09:59 | 6.08 | 6.08 mg/l |
| 8 Feb 2024, 11:31 | 1.58 | 1.58 mg/l |
| 10 Jan 2024, 13:25 | 6.98 | 6.98 mg/l |
| 1 Dec 2023, 10:51 | 5.68 | 5.68 mg/l |
| 3 Nov 2023, 09:28 | 3.78 | 3.78 mg/l |
| 5 Oct 2023, 09:08 | 4.68 | 4.68 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.087 mg/l
Sampled 10 Mar 2025, 19 months ago · 15 results banked
Every result (15)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Mar 2025, 12:02 | 0.087 | 0.087 mg/l |
| 17 Feb 2025, 09:59 | 0.07 | 0.07 mg/l |
| 27 Jan 2025, 09:56 | 0.059 | 0.059 mg/l |
| 4 Nov 2024, 11:37 | 0.099 | 0.099 mg/l |
| 8 Oct 2024, 11:09 | 0.1 | 0.1 mg/l |
| 4 Sep 2024, 13:23 | 0.16 | 0.16 mg/l |
| 6 Aug 2024, 11:46 | 0.11 | 0.11 mg/l |
| 10 Jul 2024, 08:54 | 0.11 | 0.11 mg/l |
| 7 Jun 2024, 08:39 | 0.089 | 0.089 mg/l |
| 5 Mar 2024, 09:59 | 0.068 | 0.068 mg/l |
| 8 Feb 2024, 11:31 | 0.046 | 0.046 mg/l |
| 10 Jan 2024, 13:25 | 0.091 | 0.091 mg/l |
| 1 Dec 2023, 10:51 | 0.091 | 0.091 mg/l |
| 3 Nov 2023, 09:28 | 0.096 | 0.096 mg/l |
| 5 Oct 2023, 09:08 | 0.13 | 0.13 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
711 µS/cm
Sampled 10 Mar 2025, 19 months ago · 15 results banked
Every result (15)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Mar 2025, 12:02 | 711 | 711 µS/cm |
| 17 Feb 2025, 09:59 | 642 | 642 µS/cm |
| 27 Jan 2025, 09:56 | 474 | 474 µS/cm |
| 4 Nov 2024, 11:37 | 699 | 699 µS/cm |
| 8 Oct 2024, 11:09 | 525 | 525 µS/cm |
| 4 Sep 2024, 13:23 | 752 | 752 µS/cm |
| 6 Aug 2024, 11:46 | 584 | 584 µS/cm |
| 10 Jul 2024, 08:54 | 654 | 654 µS/cm |
| 7 Jun 2024, 08:39 | 717 | 717 µS/cm |
| 5 Mar 2024, 09:59 | 669 | 669 µS/cm |
| 8 Feb 2024, 11:31 | 559 | 559 µS/cm |
| 10 Jan 2024, 13:25 | 686 | 686 µS/cm |
| 1 Dec 2023, 10:51 | 680 | 680 µS/cm |
| 3 Nov 2023, 09:28 | 507 | 507 µS/cm |
| 5 Oct 2023, 09:08 | 768 | 768 µS/cm |
Everything measured here
12 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 12 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 15 | Oct 2023 – Mar 2025 | 94.9% 10 Mar 2025 |
| Oxygen, Dissolved as O2 9924 | River water | 15 | Oct 2023 – Mar 2025 | 11.2 mg/l 10 Mar 2025 |
| Temperature of Water 0076 | River water | 15 | Oct 2023 – Mar 2025 | 8 °C 10 Mar 2025 |
| pH 0061 | River water | 15 | Oct 2023 – Mar 2025 | 8.38 10 Mar 2025 |
| Ammoniacal Nitrogen as N 0111 | River water | 15 | Oct 2023 – Mar 2025 | 0.13 mg/l 10 Mar 2025 |
| Nitrate as N 0117 | River water | 15 | Oct 2023 – Mar 2025 | 6.97 mg/l 10 Mar 2025 |
| Orthophosphate, reactive as P 0180 | River water | 15 | Oct 2023 – Mar 2025 | 0.087 mg/l 10 Mar 2025 |
| Conductivity at 25 C 0077 | River water | 15 | Oct 2023 – Mar 2025 | 711 µS/cm 10 Mar 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 15 | Oct 2023 – Mar 2025 | 240 mg/l 10 Mar 2025 |
| Ammonia un-ionised as N 0119 | River water | 15 | Oct 2023 – Mar 2025 | 0.00205 mg/l 10 Mar 2025 |
| Nitrite as N 0118 | River water | 15 | Oct 2023 – Mar 2025 | 0.034 mg/l 10 Mar 2025 |
| Nitrogen, Total Oxidised as N 0116 | River water | 15 | Oct 2023 – Mar 2025 | 7 mg/l 10 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.