Colesloggett Stream at Polventon
EA name: COLESLOGGETT STREAM AT POLVENTON
Environment Agency sampling point SW-SSN0200 · 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 Dec 2025, 10:0210 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
- 28 since 11 Jan 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 210105, 65780As published, to the nearest 1 m. Open in a map
- River, by its own name
- Colesloggett Stream
- River, by the map
- Not placedNearest line is 307 m away and its name does not agree. The river map cannot say which watercourse this is.
- Next gauge downstream
- Not known
- Why it was sampled
- Monitoring (national agency policy) (28 samples)
9 visits found no water to sample (recorded as “No flow”).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
98.5%
Sampled 10 Dec 2025, 10 months ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Dec 2025, 10:02 | 98.5 | 98.5% |
| 6 Nov 2025, 11:51 | 94.7 | 94.7% |
| 2 May 2025, 11:52 | 94.3 | 94.3% |
| 4 Apr 2025, 12:58 | 94.1 | 94.1% |
| 21 Mar 2025, 12:08 | 95.4 | 95.4% |
| 12 Feb 2025, 10:17 | 95.7 | 95.7% |
| 2 Jan 2025, 10:06 | 95.8 | 95.8% |
| 13 Dec 2024, 15:27 | 94.4 | 94.4% |
| 7 Nov 2024, 13:23 | 85 | 85% |
| 9 Oct 2024, 15:07 | 96.4 | 96.4% |
| 8 Aug 2024, 14:09 | 83.5 | 83.5% |
| 4 Jun 2024, 14:46 | 66.4 | 66.4% |
| 10 May 2024, 09:53 | 82.7 | 82.7% |
| 2 Apr 2024, 15:39 | 98.5 | 98.5% |
| 5 Mar 2024, 10:06 | 99.1 | 99.1% |
| 1 Feb 2024, 09:23 | 93 | 93% |
| 11 Jan 2024, 13:09 | 97.9 | 97.9% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10.8 mg/l
Sampled 10 Dec 2025, 10 months ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Dec 2025, 10:02 | 10.8 | 10.8 mg/l |
| 6 Nov 2025, 11:51 | 9.93 | 9.93 mg/l |
| 2 May 2025, 11:52 | 9.98 | 9.98 mg/l |
| 4 Apr 2025, 12:58 | 10.2 | 10.2 mg/l |
| 21 Mar 2025, 12:08 | 10.8 | 10.8 mg/l |
| 12 Feb 2025, 10:17 | 12 | 12 mg/l |
| 2 Jan 2025, 10:06 | 11.6 | 11.6 mg/l |
| 13 Dec 2024, 15:27 | 11 | 11 mg/l |
| 7 Nov 2024, 13:23 | 9.01 | 9.01 mg/l |
| 9 Oct 2024, 15:07 | 10 | 10 mg/l |
| 8 Aug 2024, 14:09 | 8.1 | 8.1 mg/l |
| 4 Jun 2024, 14:46 | 6.76 | 6.76 mg/l |
| 10 May 2024, 09:53 | 8.95 | 8.95 mg/l |
| 2 Apr 2024, 15:39 | 11 | 11 mg/l |
| 5 Mar 2024, 10:06 | 11.7 | 11.7 mg/l |
| 1 Feb 2024, 09:23 | 11.1 | 11.1 mg/l |
| 11 Jan 2024, 13:09 | 12.1 | 12.1 mg/l |
Water temperature
code 0076 · °C
11 °C
Sampled 10 Dec 2025, 10 months ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Dec 2025, 10:02 | 11 | 11 °C |
| 6 Nov 2025, 11:51 | 13.1 | 13.1 °C |
| 2 May 2025, 11:52 | 12.7 | 12.7 °C |
| 4 Apr 2025, 12:58 | 11.7 | 11.7 °C |
| 21 Mar 2025, 12:08 | 9.8 | 9.8 °C |
| 12 Feb 2025, 10:17 | 5.6 | 5.6 °C |
| 2 Jan 2025, 10:06 | 7 | 7 °C |
| 13 Dec 2024, 15:27 | 8.5 | 8.5 °C |
| 7 Nov 2024, 13:23 | 12.6 | 12.6 °C |
| 9 Oct 2024, 15:07 | 13.4 | 13.4 °C |
| 8 Aug 2024, 14:09 | 16.7 | 16.7 °C |
| 4 Jun 2024, 14:46 | 14.4 | 14.4 °C |
| 10 May 2024, 09:53 | 11.7 | 11.7 °C |
| 2 Apr 2024, 15:39 | 10.2 | 10.2 °C |
| 5 Mar 2024, 10:06 | 8 | 8 °C |
| 1 Feb 2024, 09:23 | 7.6 | 7.6 °C |
| 11 Jan 2024, 13:09 | 6.1 | 6.1 °C |
pH
code 0061
6.95
Sampled 10 Dec 2025, 10 months ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Dec 2025, 10:02 | 6.95 | 6.95 |
| 6 Nov 2025, 11:51 | 7.01 | 7.01 |
| 2 May 2025, 11:52 | 7.03 | 7.03 |
| 4 Apr 2025, 12:58 | 7.05 | 7.05 |
| 21 Mar 2025, 12:08 | 6.95 | 6.95 |
| 12 Feb 2025, 10:17 | 7.17 | 7.17 |
| 2 Jan 2025, 10:06 | 7.15 | 7.15 |
| 13 Dec 2024, 15:27 | 7.08 | 7.08 |
| 7 Nov 2024, 13:23 | 6.9 | 6.9 |
| 9 Oct 2024, 15:07 | 7.17 | 7.17 |
| 8 Aug 2024, 14:09 | 6.35 | 6.35 |
| 4 Jun 2024, 14:46 | 6.31 | 6.31 |
| 10 May 2024, 09:53 | 6.84 | 6.84 |
| 2 Apr 2024, 15:39 | 7.2 | 7.2 |
| 5 Mar 2024, 10:06 | 7.06 | 7.06 |
| 1 Feb 2024, 09:23 | 7.14 | 7.14 |
| 11 Jan 2024, 13:09 | 7.1 | 7.1 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 10 Dec 2025, 10 months ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Dec 2025, 10:02 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Nov 2025, 11:51 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 May 2025, 11:52 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Apr 2025, 12:58 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Mar 2025, 12:08 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Feb 2025, 10:17 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Jan 2025, 10:06 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Dec 2024, 15:27 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Nov 2024, 13:23 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Oct 2024, 15:07 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Aug 2024, 14:09 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Jun 2024, 14:46 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 May 2024, 09:53 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Apr 2024, 15:39 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Mar 2024, 10:06 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Feb 2024, 09:23 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Jan 2024, 13:09 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
1.4 mg/l
Sampled 10 Dec 2025, 10 months ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Dec 2025, 10:02 | 1.4 | 1.4 mg/l |
| 6 Nov 2025, 11:51 | 1.1 | 1.1 mg/l |
| 2 May 2025, 11:52 | 0.856 | 0.856 mg/l |
| 4 Apr 2025, 12:58 | 0.556 | 0.556 mg/l |
| 21 Mar 2025, 12:08 | 0.676 | 0.676 mg/l |
| 12 Feb 2025, 10:17 | 0.996 | 0.996 mg/l |
| 2 Jan 2025, 10:06 | 1.3 | 1.3 mg/l |
| 13 Dec 2024, 15:27 | 1.1 | 1.1 mg/l |
| 7 Nov 2024, 13:23 | 0.536 | 0.536 mg/l |
| 9 Oct 2024, 15:07 | 1.7 | 1.7 mg/l |
| 8 Aug 2024, 14:09 | 0.946 | 0.946 mg/l |
| 4 Jun 2024, 14:46 | 0.916 | 0.916 mg/l |
| 10 May 2024, 09:53 | 1.2 | 1.2 mg/l |
| 2 Apr 2024, 15:39 | 1.4 | 1.4 mg/l |
| 5 Mar 2024, 10:06 | 1.5 | 1.5 mg/l |
| 1 Feb 2024, 09:23 | 1.4 | 1.4 mg/l |
| 11 Jan 2024, 13:09 | 1.5 | 1.5 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.018 mg/l
Sampled 10 Dec 2025, 10 months ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Dec 2025, 10:02 | 0.018 | 0.018 mg/l |
| 6 Nov 2025, 11:51 | 0.014 | 0.014 mg/l |
| 2 May 2025, 11:52 | 0.018 | 0.018 mg/l |
| 4 Apr 2025, 12:58 | 0.016 | 0.016 mg/l |
| 21 Mar 2025, 12:08 | 0.013 | 0.013 mg/l |
| 12 Feb 2025, 10:17 | 0.01 | 0.01 mg/l |
| 2 Jan 2025, 10:06 | <0.01 | below 0.01 mg/l (not detected above this) |
| 13 Dec 2024, 15:27 | <0.01 | below 0.01 mg/l (not detected above this) |
| 7 Nov 2024, 13:23 | 0.027 | 0.027 mg/l |
| 9 Oct 2024, 15:07 | 0.024 | 0.024 mg/l |
| 8 Aug 2024, 14:09 | 0.029 | 0.029 mg/l |
| 4 Jun 2024, 14:46 | 0.022 | 0.022 mg/l |
| 10 May 2024, 09:53 | 0.015 | 0.015 mg/l |
| 2 Apr 2024, 15:39 | <0.01 | below 0.01 mg/l (not detected above this) |
| 5 Mar 2024, 10:06 | <0.01 | below 0.01 mg/l (not detected above this) |
| 1 Feb 2024, 09:23 | 0.016 | 0.016 mg/l |
| 11 Jan 2024, 13:09 | <0.01 | below 0.01 mg/l (not detected above this) |
Conductivity
at 25 °C · code 0077 · µS/cm
203 µS/cm
Sampled 10 Dec 2025, 10 months ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Dec 2025, 10:02 | 203 | 203 µS/cm |
| 6 Nov 2025, 11:51 | 181 | 181 µS/cm |
| 2 May 2025, 11:52 | 166 | 166 µS/cm |
| 4 Apr 2025, 12:58 | 120 | 120 µS/cm |
| 21 Mar 2025, 12:08 | 127 | 127 µS/cm |
| 12 Feb 2025, 10:17 | 166 | 166 µS/cm |
| 2 Jan 2025, 10:06 | 217 | 217 µS/cm |
| 13 Dec 2024, 15:27 | 182 | 182 µS/cm |
| 7 Nov 2024, 13:23 | 134 | 134 µS/cm |
| 9 Oct 2024, 15:07 | 153 | 153 µS/cm |
| 8 Aug 2024, 14:09 | 154 | 154 µS/cm |
| 4 Jun 2024, 14:46 | 176 | 176 µS/cm |
| 10 May 2024, 09:53 | 217 | 217 µS/cm |
| 2 Apr 2024, 15:39 | 256 | 256 µS/cm |
| 5 Mar 2024, 10:06 | 231 | 231 µS/cm |
| 1 Feb 2024, 09:23 | 254 | 254 µS/cm |
| 11 Jan 2024, 13:09 | 254 | 254 µS/cm |
Everything measured here
49 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 49 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 17 | Jan 2024 – Dec 2025 | 98.5% 10 Dec 2025 |
| Oxygen, Dissolved as O2 9924 | River water | 17 | Jan 2024 – Dec 2025 | 10.8 mg/l 10 Dec 2025 |
| Temperature of Water 0076 | River water | 17 | Jan 2024 – Dec 2025 | 11 °C 10 Dec 2025 |
| pH 0061 | River water | 17 | Jan 2024 – Dec 2025 | 6.95 10 Dec 2025 |
| Ammoniacal Nitrogen as N 0111 | River water | 17 | Jan 2024 – Dec 2025 | below 0.03 mg/l 10 Dec 2025 |
| Nitrate as N 0117 | River water | 17 | Jan 2024 – Dec 2025 | 1.4 mg/l 10 Dec 2025 |
| Orthophosphate, reactive as P 0180 | River water | 17 | Jan 2024 – Dec 2025 | 0.018 mg/l 10 Dec 2025 |
| Conductivity at 25 C 0077 | River water | 17 | Jan 2024 – Dec 2025 | 203 µS/cm 10 Dec 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 17 | Jan 2024 – Dec 2025 | 29 mg/l 10 Dec 2025 |
| Aluminium, Dissolved 6037 | River water | 1 | Apr 2025 – Apr 2025 | 27 µg/l 4 Apr 2025 |
| Aminomethylphosphonic acid 7125 | River water | 4 | Apr 2025 – Dec 2025 | below 0.1 µg/l 10 Dec 2025 |
| Ammonia un-ionised as N 0119 | River water | 17 | Jan 2024 – Dec 2025 | below 0.00005 mg/l 10 Dec 2025 |
| Barium, Dissolved 9446 | River water | 1 | Apr 2025 – Apr 2025 | below 10 µg/l 4 Apr 2025 |
| Boron, Dissolved 9447 | River water | 1 | Apr 2025 – Apr 2025 | below 100 µg/l 4 Apr 2025 |
| Cadmium, Dissolved 0106 | River water | 1 | Apr 2025 – Apr 2025 | 0.039 µg/l 4 Apr 2025 |
| Calcium, Dissolved 0239 | River water | 1 | Apr 2025 – Apr 2025 | 7.9 mg/l 4 Apr 2025 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 11 | Aug 2024 – Dec 2025 | 5.4 mg/l 10 Dec 2025 |
| Chloride 0172 | River water | 17 | Jan 2024 – Dec 2025 | 36 mg/l 10 Dec 2025 |
| Chromium, Dissolved 3409 | River water | 1 | Apr 2025 – Apr 2025 | below 0.5 µg/l 4 Apr 2025 |
| Copper : BLM Bioavailable 4821 | River water | 1 | Apr 2025 – Apr 2025 | 0.16 µg/l 4 Apr 2025 |
| Copper, Dissolved 6450 | River water | 1 | Apr 2025 – Apr 2025 | 1.3 µg/l 4 Apr 2025 |
| eDNA Report 3047 | River water | 2 | May 2024 – Feb 2025 | 1 text result 12 Feb 2025 |
| Flow Type 2896 | River water | 20 | Jan 2024 – Dec 2025 | High Flow 10 Dec 2025 |
| Glyphosate 3007 | River water | 4 | Apr 2025 – Dec 2025 | below 0.1 µg/l 10 Dec 2025 |
| Hardness, Calcium 0163 | River water | 1 | Apr 2025 – Apr 2025 | 19.7 mg/l 4 Apr 2025 |
| Hardness, Total as CaCO3 0158 | River water | 1 | Apr 2025 – Apr 2025 | 26.3 mg/l 4 Apr 2025 |
| Iron, Dissolved 6460 | River water | 1 | Apr 2025 – Apr 2025 | below 30 µg/l 4 Apr 2025 |
| Lead : BLM Bioavailable 3377 | River water | 1 | Apr 2025 – Apr 2025 | 0.02 µg/l 4 Apr 2025 |
| Lead, Dissolved 0052 | River water | 1 | Apr 2025 – Apr 2025 | below 0.1 µg/l 4 Apr 2025 |
| Lithium, Dissolved 4201 | River water | 1 | Apr 2025 – Apr 2025 | below 100 µg/l 4 Apr 2025 |
| Magnesium, Dissolved 0235 | River water | 1 | Apr 2025 – Apr 2025 | 1.6 mg/l 4 Apr 2025 |
| Manganese : BLM Bioavailable 4820 | River water | 1 | Apr 2025 – Apr 2025 | 1.3 µg/l 4 Apr 2025 |
| Manganese, Dissolved 6458 | River water | 1 | Apr 2025 – Apr 2025 | below 10 µg/l 4 Apr 2025 |
| Mitochondrial marker : Fish 12S 2857 | River water | 1 | Feb 2025 – Feb 2025 | Not found 12 Feb 2025 |
| Nickel : BLM Bioavailable 3878 | River water | 1 | Apr 2025 – Apr 2025 | 0.12 µg/l 4 Apr 2025 |
| Nickel, Dissolved 3410 | River water | 1 | Apr 2025 – Apr 2025 | below 0.5 µg/l 4 Apr 2025 |
| Nitrite as N 0118 | River water | 17 | Jan 2024 – Dec 2025 | below 0.004 mg/l 10 Dec 2025 |
| Nitrogen, Total as N 9686 | River water | 17 | Jan 2024 – Dec 2025 | 1.6 mg/l 10 Dec 2025 |
| Nitrogen, Total Oxidised as N 0116 | River water | 17 | Jan 2024 – Dec 2025 | 1.4 mg/l 10 Dec 2025 |
| No flow /No sample 7668 | River water | 9 | Jul 2024 – Oct 2025 | No flow/discharge at sampling point 1 Oct 2025 |
| Phosphorus, Total as P 0348 | River water | 17 | Jan 2024 – Dec 2025 | 0.021 mg/l 10 Dec 2025 |
| Potassium, Dissolved 0209 | River water | 1 | Apr 2025 – Apr 2025 | 1.1 mg/l 4 Apr 2025 |
| Silica, reactive as SiO2 0182 | River water | 17 | Jan 2024 – Dec 2025 | 4.2 mg/l 10 Dec 2025 |
| Sodium, Dissolved 0205 | River water | 1 | Apr 2025 – Apr 2025 | 11 mg/l 4 Apr 2025 |
| Solids, Suspended at 105 C 0135 | River water | 17 | Jan 2024 – Dec 2025 | below 3 mg/l 10 Dec 2025 |
| Strontium, Filtered 6693 | River water | 1 | Apr 2025 – Apr 2025 | 29 µg/l 4 Apr 2025 |
| Sulphate, Dissolved as SO4 7859 | River water | 1 | Apr 2025 – Apr 2025 | below 10 mg/l 4 Apr 2025 |
| Zinc : BLM Bioavailable 4822 | River water | 1 | Apr 2025 – Apr 2025 | 4.8 µg/l 4 Apr 2025 |
| Zinc, Dissolved 3408 | River water | 1 | Apr 2025 – Apr 2025 | 5.8 µg/l 4 Apr 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.