18FT Rhyne Lower Nythe Farm
EA name: 18FT RHYNE LOWER NYTHE FARM (also listed as “RSN1747 18FT RHYNE LOWER NYTHE FARM”)
Environment Agency sampling point SW-RSN1747 · 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
- 11 Sep 2026, 11:3320 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 6 since 17 Apr 2026 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 341851, 134317As published, to the nearest 1 m. Open in a map
- River, by its own name
- Its name does not give one
- River, by the map
- Eighteen Feet RhynePlaced by position alone, on a line whose map name differs from its own, 8 m from the line.
- Next gauge downstream
- Bradney On the Kings Sedgemoor Drain · 10 km along the river
- Why it was sampled
- Monitoring (national agency policy) (6 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
78.3%
Sampled 11 Sep 2026, 20 days ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 Sep 2026, 11:33 | 78.3 | 78.3% |
| 20 Aug 2026, 11:16 | 69.5 | 69.5% |
| 10 Jul 2026, 09:13 | 81.5 | 81.5% |
| 26 Jun 2026, 09:26 | 84.4 | 84.4% |
| 12 May 2026, 14:56 | 135.4 | 135.4% |
| 17 Apr 2026, 10:51 | 84 | 84% |
Dissolved oxygen
as O2 · code 9924 · mg/l
7.4 mg/l
Sampled 11 Sep 2026, 20 days ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 Sep 2026, 11:33 | 7.4 | 7.4 mg/l |
| 20 Aug 2026, 11:16 | 6.4 | 6.4 mg/l |
| 10 Jul 2026, 09:13 | 6.99 | 6.99 mg/l |
| 26 Jun 2026, 09:26 | 6.74 | 6.74 mg/l |
| 12 May 2026, 14:56 | 13.3 | 13.3 mg/l |
| 17 Apr 2026, 10:51 | 8.65 | 8.65 mg/l |
Water temperature
code 0076 · °C
17.9 °C
Sampled 11 Sep 2026, 20 days ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 Sep 2026, 11:33 | 17.9 | 17.9 °C |
| 20 Aug 2026, 11:16 | 19.2 | 19.2 °C |
| 10 Jul 2026, 09:13 | 22.9 | 22.9 °C |
| 26 Jun 2026, 09:26 | 26.7 | 26.7 °C |
| 12 May 2026, 14:56 | 16.1 | 16.1 °C |
| 17 Apr 2026, 10:51 | 13.9 | 13.9 °C |
pH
code 0061
7.68
Sampled 11 Sep 2026, 20 days ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 Sep 2026, 11:33 | 7.68 | 7.68 |
| 20 Aug 2026, 11:16 | 7.77 | 7.77 |
| 10 Jul 2026, 09:13 | 7.72 | 7.72 |
| 26 Jun 2026, 09:26 | 7.64 | 7.64 |
| 12 May 2026, 14:56 | 8.19 | 8.19 |
| 17 Apr 2026, 10:51 | 7.85 | 7.85 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 11 Sep 2026, 20 days ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 Sep 2026, 11:33 | <0.03 | below 0.03 mg/l (not detected above this) |
| 20 Aug 2026, 11:16 | 0.06 | 0.06 mg/l |
| 10 Jul 2026, 09:13 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 Jun 2026, 09:26 | 0.045 | 0.045 mg/l |
| 12 May 2026, 14:56 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Apr 2026, 10:51 | 0.045 | 0.045 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
below 0.196 mg/l (not detected above this)
Sampled 11 Sep 2026, 20 days ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 Sep 2026, 11:33 | <0.196 | below 0.196 mg/l (not detected above this) |
| 20 Aug 2026, 11:16 | <0.196 | below 0.196 mg/l (not detected above this) |
| 10 Jul 2026, 09:13 | <0.196 | below 0.196 mg/l (not detected above this) |
| 26 Jun 2026, 09:26 | 0.34 | 0.34 mg/l |
| 12 May 2026, 14:56 | 1.68 | 1.68 mg/l |
| 17 Apr 2026, 10:51 | 3.86 | 3.86 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.2 mg/l
Sampled 11 Sep 2026, 20 days ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 Sep 2026, 11:33 | 0.2 | 0.2 mg/l |
| 20 Aug 2026, 11:16 | 0.39 | 0.39 mg/l |
| 10 Jul 2026, 09:13 | 0.23 | 0.23 mg/l |
| 26 Jun 2026, 09:26 | 0.15 | 0.15 mg/l |
| 12 May 2026, 14:56 | 0.028 | 0.028 mg/l |
| 17 Apr 2026, 10:51 | 0.038 | 0.038 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
711 µS/cm
Sampled 11 Sep 2026, 20 days ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 Sep 2026, 11:33 | 711 | 711 µS/cm |
| 20 Aug 2026, 11:16 | 719 | 719 µS/cm |
| 10 Jul 2026, 09:13 | 902 | 902 µS/cm |
| 26 Jun 2026, 09:26 | 891 | 891 µS/cm |
| 12 May 2026, 14:56 | 1000 | 1000 µS/cm |
| 17 Apr 2026, 10:51 | 1103 | 1103 µS/cm |
Everything measured here
20 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 20 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 6 | Apr 2026 – Sep 2026 | 78.3% 11 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 6 | Apr 2026 – Sep 2026 | 7.4 mg/l 11 Sep 2026 |
| Temperature of Water 0076 | River water | 6 | Apr 2026 – Sep 2026 | 17.9 °C 11 Sep 2026 |
| pH 0061 | River water | 6 | Apr 2026 – Sep 2026 | 7.68 11 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 6 | Apr 2026 – Sep 2026 | below 0.03 mg/l 11 Sep 2026 |
| Nitrate as N 0117 | River water | 6 | Apr 2026 – Sep 2026 | below 0.196 mg/l 11 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 6 | Apr 2026 – Sep 2026 | 0.2 mg/l 11 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 6 | Apr 2026 – Sep 2026 | 711 µS/cm 11 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 6 | Apr 2026 – Sep 2026 | 200 mg/l 11 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 6 | Apr 2026 – Sep 2026 | below 0.00047 mg/l 11 Sep 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 6 | Apr 2026 – Sep 2026 | 7.7 mg/l 11 Sep 2026 |
| Chloride 0172 | River water | 6 | Apr 2026 – Sep 2026 | 74 mg/l 11 Sep 2026 |
| Flow Type 2896 | River water | 6 | Apr 2026 – Sep 2026 | Moderate Flow 11 Sep 2026 |
| GCMS Screen : Target Based multi-residue screening : Semi Quantitative 4994 | River water | 1 | Jul 2026 – Jul 2026 | 1 text result 10 Jul 2026 |
| Nitrite as N 0118 | River water | 6 | Apr 2026 – Sep 2026 | below 0.004 mg/l 11 Sep 2026 |
| Nitrogen, Total as N 9686 | River water | 6 | Apr 2026 – Sep 2026 | 0.71 mg/l 11 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 6 | Apr 2026 – Sep 2026 | below 0.2 mg/l 11 Sep 2026 |
| Phosphorus, Total as P 0348 | River water | 6 | Apr 2026 – Sep 2026 | 0.22 mg/l 11 Sep 2026 |
| Silica, reactive as SiO2 0182 | River water | 6 | Apr 2026 – Sep 2026 | 0.9 mg/l 11 Sep 2026 |
| Solids, Suspended at 105 C 0135 | River water | 6 | Apr 2026 – Sep 2026 | below 3 mg/l 11 Sep 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.