River Nadder at Upper Chicksgrove
EA name: RIVER NADDER AT UPPER CHICKSGROVE
Environment Agency sampling point SW-50220284 · 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
- 2 Jul 2026, 13:443 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 16 since 17 Oct 2023 Imported periods: 1 Oct 2023 – 8 Oct 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Monitoring (national agency policy)
- Where
- National Grid 396380, 129700As published, to the nearest 10 m. Open in a map
- River, by its own name
- Nadder
- River, by the map
- River NadderPlaced on the river its name gives, 10 m from the line.
- Next gauge downstream
- Wilton On the River Nadder · 20 km along the river
- Nearest gauge upstream
- Tisbury On the River Nadder · 2.6 km along the river
- Why it was sampled
- Monitoring (national agency policy) (14 samples)
Environmental monitoring statutory (EU directives) (2 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
99.6%
Sampled 4 Mar 2024, 2.6 years ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Mar 2024, 14:01 | 99.6 | 99.6% |
| 1 Feb 2024, 11:43 | 98.8 | 98.8% |
| 3 Jan 2024, 13:59 | 95.2 | 95.2% |
| 15 Dec 2023, 12:30 | 96.9 | 96.9% |
| 6 Nov 2023, 11:17 | 93.2 | 93.2% |
| 17 Oct 2023, 14:33 | 95.6 | 95.6% |
Dissolved oxygen
as O2 · code 9924 · mg/l
11.6 mg/l
Sampled 4 Mar 2024, 2.6 years ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Mar 2024, 14:01 | 11.6 | 11.6 mg/l |
| 1 Feb 2024, 11:43 | 11.5 | 11.5 mg/l |
| 3 Jan 2024, 13:59 | 10.9 | 10.9 mg/l |
| 15 Dec 2023, 12:30 | 11.3 | 11.3 mg/l |
| 6 Nov 2023, 11:17 | 10.5 | 10.5 mg/l |
| 17 Oct 2023, 14:33 | 10.4 | 10.4 mg/l |
Water temperature
code 0076 · °C
8.5 °C
Sampled 4 Mar 2024, 2.6 years ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Mar 2024, 14:01 | 8.5 | 8.5 °C |
| 1 Feb 2024, 11:43 | 8.7 | 8.7 °C |
| 3 Jan 2024, 13:59 | 9.4 | 9.4 °C |
| 15 Dec 2023, 12:30 | 8.6 | 8.6 °C |
| 6 Nov 2023, 11:17 | 10.2 | 10.2 °C |
| 17 Oct 2023, 14:33 | 11.5 | 11.5 °C |
pH
code 0061
8.2
Sampled 2 Jul 2026, 3 months ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jul 2026, 13:44 | 8.2 | 8.2 |
| 10 Apr 2026, 10:22 | 8.2 | 8.2 |
| 9 Jan 2026, 14:37 | 7.93 | 7.93 |
| 17 Oct 2025, 11:11 | 8.07 | 8.07 |
| 28 Jul 2025, 11:33 | 8.11 | 8.11 |
| 11 Apr 2025, 12:58 | 8.43 | 8.43 |
| 30 Jan 2025, 11:51 | 8.01 | 8.01 |
| 4 Oct 2024, 10:35 | 8.08 | 8.08 |
| 4 Jul 2024, 15:20 | 8.29 | 8.29 |
| 4 Apr 2024, 13:08 | 8.1 | 8.1 |
| 4 Mar 2024, 14:01 | 8.03 | 8.03 |
| 1 Feb 2024, 11:43 | 8.16 | 8.16 |
| 3 Jan 2024, 13:59 | 7.85 | 7.85 |
| 15 Dec 2023, 12:30 | 8 | 8 |
| 6 Nov 2023, 11:17 | 7.93 | 7.93 |
| 17 Oct 2023, 14:33 | 8.11 | 8.11 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 4 Mar 2024, 2.6 years ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Mar 2024, 14:01 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Feb 2024, 11:43 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Jan 2024, 13:59 | 0.038 | 0.038 mg/l |
| 15 Dec 2023, 12:30 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Nov 2023, 11:17 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Oct 2023, 14:33 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
8.39 mg/l
Sampled 4 Mar 2024, 2.6 years ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Mar 2024, 14:01 | 8.39 | 8.39 mg/l |
| 1 Feb 2024, 11:43 | 7.89 | 7.89 mg/l |
| 3 Jan 2024, 13:59 | 5.99 | 5.99 mg/l |
| 15 Dec 2023, 12:30 | 8.39 | 8.39 mg/l |
| 6 Nov 2023, 11:17 | 6.58 | 6.58 mg/l |
| 17 Oct 2023, 14:33 | 3.78 | 3.78 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.08 mg/l
Sampled 4 Mar 2024, 2.6 years ago · 5 results banked
Every result (5)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Mar 2024, 14:01 | 0.08 | 0.08 mg/l |
| 3 Jan 2024, 13:59 | 0.11 | 0.11 mg/l |
| 15 Dec 2023, 12:30 | 0.068 | 0.068 mg/l |
| 6 Nov 2023, 11:17 | 0.08 | 0.08 mg/l |
| 17 Oct 2023, 14:33 | 0.087 | 0.087 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
539 µS/cm
Sampled 4 Mar 2024, 2.6 years ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Mar 2024, 14:01 | 539 | 539 µS/cm |
| 1 Feb 2024, 11:43 | 570 | 570 µS/cm |
| 3 Jan 2024, 13:59 | 452 | 452 µS/cm |
| 15 Dec 2023, 12:30 | 550 | 550 µS/cm |
| 6 Nov 2023, 11:17 | 506 | 506 µS/cm |
| 17 Oct 2023, 14:33 | 515 | 515 µS/cm |
Everything measured here
17 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 17 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 6 | Oct 2023 – Mar 2024 | 99.6% 4 Mar 2024 |
| Oxygen, Dissolved as O2 9924 | River water | 6 | Oct 2023 – Mar 2024 | 11.6 mg/l 4 Mar 2024 |
| Temperature of Water 0076 | River water | 6 | Oct 2023 – Mar 2024 | 8.5 °C 4 Mar 2024 |
| pH 0061 | River water | 16 | Oct 2023 – Jul 2026 | 8.2 2 Jul 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 6 | Oct 2023 – Mar 2024 | below 0.03 mg/l 4 Mar 2024 |
| Nitrate as N 0117 | River water | 6 | Oct 2023 – Mar 2024 | 8.39 mg/l 4 Mar 2024 |
| Orthophosphate, reactive as P 0180 | River water | 5 | Oct 2023 – Mar 2024 | 0.08 mg/l 4 Mar 2024 |
| Conductivity at 25 C 0077 | River water | 6 | Oct 2023 – Mar 2024 | 539 µS/cm 4 Mar 2024 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 6 | Oct 2023 – Mar 2024 | 210 mg/l 4 Mar 2024 |
| Ammonia un-ionised as N 0119 | River water | 6 | Oct 2023 – Mar 2024 | below 0.00049 mg/l 4 Mar 2024 |
| Calcium, Dissolved 0239 | River water | 12 | Oct 2023 – Jul 2026 | 90 mg/l 2 Jul 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 12 | Oct 2023 – Jul 2026 | 1.9 mg/l 2 Jul 2026 |
| Iron, Dissolved 6460 | River water | 12 | Oct 2023 – Jul 2026 | 340 µg/l 2 Jul 2026 |
| Magnesium, Dissolved 0235 | River water | 12 | Oct 2023 – Jul 2026 | 3.1 mg/l 2 Jul 2026 |
| Nitrite as N 0118 | River water | 6 | Oct 2023 – Mar 2024 | 0.0084 mg/l 4 Mar 2024 |
| Nitrogen, Total Oxidised as N 0116 | River water | 6 | Oct 2023 – Mar 2024 | 8.4 mg/l 4 Mar 2024 |
| Solids, Suspended at 105 C 0135 | River water | 6 | Oct 2023 – Mar 2024 | 7.4 mg/l 4 Mar 2024 |
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.