River Thurne Martham Ferry
EA name: R.THURNE MARTHAM FERRY
Environment Agency sampling point AN-THR065 · 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
- 21 Aug 2026, 12:2341 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 32 since 10 Oct 2023 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Planned investigation (local monitoring)
- Where
- National Grid 644500, 319500As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Thurne
- River, by the map
- River ThurnePlaced on the river its name gives, 49 m from the line. A tidal reach: water runs both ways, so no gauge order is claimed.
- Next gauge downstream
- Not known
- Why it was sampled
- Planned investigation (local monitoring) (32 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
74.9%
Sampled 21 Aug 2026, 41 days ago · 17 results banked
Also measured in percentage on another sample material (2GZZ): 15 results, kept apart (see the table).
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Aug 2026, 12:23 | 74.9 | 74.9% |
| 22 Jul 2026, 11:53 | 79.9 | 79.9% |
| 15 Jun 2026, 12:42 | 112.9 | 112.9% |
| 20 May 2026, 11:10 | 95.5 | 95.5% |
| 24 Apr 2026, 13:12 | 115.8 | 115.8% |
| 18 Mar 2026, 12:49 | 116.3 | 116.3% |
| 20 Feb 2026, 12:32 | 85 | 85% |
| 21 Jan 2026, 11:36 | 80.2 | 80.2% |
| 17 Dec 2025, 12:20 | 76.8 | 76.8% |
| 27 Nov 2025, 12:14 | 73.2 | 73.2% |
| 22 Oct 2025, 11:40 | 87.4 | 87.4% |
| 18 Sep 2025, 12:29 | 86.8 | 86.8% |
| 20 Aug 2025, 12:20 | 73.8 | 73.8% |
| 23 Jul 2025, 11:35 | 64.5 | 64.5% |
| 17 Jun 2025, 12:08 | 68.7 | 68.7% |
| 22 May 2025, 13:37 | 108.4 | 108.4% |
| 24 Apr 2025, 12:46 | 113.3 | 113.3% |
Dissolved oxygen
as O2 · code 9924 · mg/l
6.67 mg/l
Sampled 21 Aug 2026, 41 days ago · 17 results banked
Also measured in milligram per litre on another sample material (2GZZ): 15 results, kept apart (see the table).
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Aug 2026, 12:23 | 6.67 | 6.67 mg/l |
| 22 Jul 2026, 11:53 | 7.21 | 7.21 mg/l |
| 15 Jun 2026, 12:42 | 10.3 | 10.3 mg/l |
| 20 May 2026, 11:10 | 9.56 | 9.56 mg/l |
| 24 Apr 2026, 13:12 | 11.6 | 11.6 mg/l |
| 18 Mar 2026, 12:49 | 12.7 | 12.7 mg/l |
| 20 Feb 2026, 12:32 | 10.8 | 10.8 mg/l |
| 21 Jan 2026, 11:36 | 9.77 | 9.77 mg/l |
| 17 Dec 2025, 12:20 | 8.99 | 8.99 mg/l |
| 27 Nov 2025, 12:14 | 9.14 | 9.14 mg/l |
| 22 Oct 2025, 11:40 | 8.96 | 8.96 mg/l |
| 18 Sep 2025, 12:29 | 8.41 | 8.41 mg/l |
| 20 Aug 2025, 12:20 | 6.72 | 6.72 mg/l |
| 23 Jul 2025, 11:35 | 5.65 | 5.65 mg/l |
| 17 Jun 2025, 12:08 | 5.85 | 5.85 mg/l |
| 22 May 2025, 13:37 | 10.1 | 10.1 mg/l |
| 24 Apr 2025, 12:46 | 11.4 | 11.4 mg/l |
Water temperature
code 0076 · °C
20.1 °C
Sampled 21 Aug 2026, 41 days ago · 17 results banked
Also measured in celsius on another sample material (2GZZ): 15 results, kept apart (see the table).
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Aug 2026, 12:23 | 20.1 | 20.1 °C |
| 22 Jul 2026, 11:53 | 19.7 | 19.7 °C |
| 15 Jun 2026, 12:42 | 19 | 19 °C |
| 20 May 2026, 11:10 | 14.6 | 14.6 °C |
| 24 Apr 2026, 13:12 | 14.1 | 14.1 °C |
| 18 Mar 2026, 12:49 | 10.6 | 10.6 °C |
| 20 Feb 2026, 12:32 | 4.8 | 4.8 °C |
| 21 Jan 2026, 11:36 | 6.1 | 6.1 °C |
| 17 Dec 2025, 12:20 | 7.3 | 7.3 °C |
| 27 Nov 2025, 12:14 | 5.1 | 5.1 °C |
| 22 Oct 2025, 11:40 | 13 | 13 °C |
| 18 Sep 2025, 12:29 | 16 | 16 °C |
| 20 Aug 2025, 12:20 | 19 | 19 °C |
| 23 Jul 2025, 11:35 | 21.2 | 21.2 °C |
| 17 Jun 2025, 12:08 | 22.4 | 22.4 °C |
| 22 May 2025, 13:37 | 17.8 | 17.8 °C |
| 24 Apr 2025, 12:46 | 14.2 | 14.2 °C |
pH
code 0061
7.94
Sampled 21 Aug 2026, 41 days ago · 17 results banked
Also measured in ph units on another sample material (2GZZ): 15 results, kept apart (see the table).
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Aug 2026, 12:23 | 7.94 | 7.94 |
| 22 Jul 2026, 11:53 | 8.01 | 8.01 |
| 15 Jun 2026, 12:42 | 8.15 | 8.15 |
| 20 May 2026, 11:10 | 8.14 | 8.14 |
| 24 Apr 2026, 13:12 | 8.58 | 8.58 |
| 18 Mar 2026, 12:49 | 8.32 | 8.32 |
| 20 Feb 2026, 12:32 | 7.58 | 7.58 |
| 21 Jan 2026, 11:36 | 7.3 | 7.3 |
| 17 Dec 2025, 12:20 | 7.53 | 7.53 |
| 27 Nov 2025, 12:14 | 7.29 | 7.29 |
| 22 Oct 2025, 11:40 | 7.82 | 7.82 |
| 18 Sep 2025, 12:29 | 7.96 | 7.96 |
| 20 Aug 2025, 12:20 | 7.76 | 7.76 |
| 23 Jul 2025, 11:35 | 7.82 | 7.82 |
| 17 Jun 2025, 12:08 | 7.65 | 7.65 |
| 22 May 2025, 13:37 | 8.21 | 8.21 |
| 24 Apr 2025, 12:46 | 8.23 | 8.23 |
Conductivity
at 25 °C · code 0077 · µS/cm
5970 µS/cm
Sampled 21 Aug 2026, 41 days ago · 17 results banked
Also measured in microsiemens per centimetre on another sample material (2GZZ): 15 results, kept apart (see the table).
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 21 Aug 2026, 12:23 | 5970 | 5970 µS/cm |
| 22 Jul 2026, 11:53 | 4053 | 4053 µS/cm |
| 15 Jun 2026, 12:42 | 5237 | 5237 µS/cm |
| 20 May 2026, 11:10 | 4946 | 4946 µS/cm |
| 24 Apr 2026, 13:12 | 6736 | 6736 µS/cm |
| 18 Mar 2026, 12:49 | 6527 | 6527 µS/cm |
| 20 Feb 2026, 12:32 | 5114 | 5114 µS/cm |
| 21 Jan 2026, 11:36 | 5673 | 5673 µS/cm |
| 17 Dec 2025, 12:20 | 8908 | 8908 µS/cm |
| 27 Nov 2025, 12:14 | 6722 | 6722 µS/cm |
| 22 Oct 2025, 11:40 | 10095 | 10095 µS/cm |
| 18 Sep 2025, 12:29 | 5925 | 5925 µS/cm |
| 20 Aug 2025, 12:20 | 5916 | 5916 µS/cm |
| 23 Jul 2025, 11:35 | 4677 | 4677 µS/cm |
| 17 Jun 2025, 12:08 | 6578 | 6578 µS/cm |
| 22 May 2025, 13:37 | 6150 | 6150 µS/cm |
| 24 Apr 2025, 12:46 | 6505 | 6505 µS/cm |
Everything measured here
13 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 26 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 17 | Apr 2025 – Aug 2026 | 74.9% 21 Aug 2026 |
| Oxygen, Dissolved, % Saturation 9901 | Pond / lake / reservoir water | 15 | Oct 2023 – Mar 2025 | 111.3% 21 Mar 2025 |
| Oxygen, Dissolved as O2 9924 | River water | 17 | Apr 2025 – Aug 2026 | 6.67 mg/l 21 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | Pond / lake / reservoir water | 15 | Oct 2023 – Mar 2025 | 12 mg/l 21 Mar 2025 |
| Temperature of Water 0076 | River water | 17 | Apr 2025 – Aug 2026 | 20.1 °C 21 Aug 2026 |
| Temperature of Water 0076 | Pond / lake / reservoir water | 15 | Oct 2023 – Mar 2025 | 11.1 °C 21 Mar 2025 |
| pH 0061 | River water | 17 | Apr 2025 – Aug 2026 | 7.94 21 Aug 2026 |
| pH 0061 | Pond / lake / reservoir water | 15 | Oct 2023 – Mar 2025 | 7.96 21 Mar 2025 |
| Conductivity at 25 C 0077 | River water | 17 | Apr 2025 – Aug 2026 | 5970 µS/cm 21 Aug 2026 |
| Conductivity at 25 C 0077 | Pond / lake / reservoir water | 15 | Oct 2023 – Mar 2025 | 5976 µS/cm 21 Mar 2025 |
| Ammoniacal Nitrogen, Filtered as N 9993 | River water | 17 | Apr 2025 – Aug 2026 | below 0.03 mg/l 21 Aug 2026 |
| Chloride 0172 | River water | 17 | Apr 2025 – Aug 2026 | 1700 mg/l 21 Aug 2026 |
| Chlorophyll : Acetone Extract 7887 | River water | 14 | Apr 2025 – Aug 2026 | 72 µg/l 21 Aug 2026 |
| Nitrogen, Total Oxidised, Filtered as N 9943 | River water | 17 | Apr 2025 – Aug 2026 | below 0.2 mg/l 21 Aug 2026 |
| Orthophosphate, Filtered as P 9856 | River water | 17 | Apr 2025 – Aug 2026 | 0.019 mg/l 21 Aug 2026 |
| Phosphorus, Total as P 0348 | River water | 17 | Apr 2025 – Aug 2026 | 0.11 mg/l 21 Aug 2026 |
| Silicate, Filtered as SiO2 9857 | River water | 17 | Apr 2025 – Aug 2026 | 13 mg/l 21 Aug 2026 |
| Transparency 0067 | River water | 16 | Apr 2025 – Aug 2026 | 0.5 metre 21 Aug 2026 |
| Ammoniacal Nitrogen, Filtered as N 9993 | Pond / lake / reservoir water | 15 | Oct 2023 – Mar 2025 | below 0.03 mg/l 21 Mar 2025 |
| Chloride 0172 | Pond / lake / reservoir water | 15 | Oct 2023 – Mar 2025 | 1700 mg/l 21 Mar 2025 |
| Chlorophyll : Acetone Extract 7887 | Pond / lake / reservoir water | 14 | Oct 2023 – Mar 2025 | 70 µg/l 21 Mar 2025 |
| Nitrogen, Total Oxidised, Filtered as N 9943 | Pond / lake / reservoir water | 15 | Oct 2023 – Mar 2025 | 0.24 mg/l 21 Mar 2025 |
| Orthophosphate, Filtered as P 9856 | Pond / lake / reservoir water | 15 | Oct 2023 – Mar 2025 | 0.0021 mg/l 21 Mar 2025 |
| Phosphorus, Total as P 0348 | Pond / lake / reservoir water | 15 | Oct 2023 – Mar 2025 | 0.017 mg/l 21 Mar 2025 |
| Silicate, Filtered as SiO2 9857 | Pond / lake / reservoir water | 15 | Oct 2023 – Mar 2025 | 6.1 mg/l 21 Mar 2025 |
| Transparency 0067 | Pond / lake / reservoir water | 14 | Oct 2023 – Mar 2025 | 0.9 metre 21 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.