Great Stour Grove Ferry
EA name: GREAT STOUR GROVE FERRY
Environment Agency sampling point SO-E0001250 · 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 Aug 2026, 14:0452 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 27 since 1 Dec 2023 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 623500, 163200As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Great Stour
- River, by the map
- Great StourPlaced on the river its name gives, 22 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
- Monitoring (national agency policy) (27 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
102.1%
Sampled 10 Aug 2026, 52 days ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Aug 2026, 14:04 | 102.1 | 102.1% |
| 14 Jul 2026, 12:17 | 95.1 | 95.1% |
| 10 Jun 2026, 11:34 | 100.7 | 100.7% |
| 22 May 2026, 10:17 | 162 | 162% |
| 9 Apr 2026, 09:52 | 109.4 | 109.4% |
| 9 Feb 2026, 14:07 | 84.8 | 84.8% |
| 2 Jan 2026, 13:46 | 91.6 | 91.6% |
| 2 Dec 2025, 10:47 | 92.7 | 92.7% |
| 10 Sep 2025, 13:22 | 99.6 | 99.6% |
| 1 Aug 2025, 10:20 | 116.8 | 116.8% |
| 3 Jul 2025, 11:06 | 79.9 | 79.9% |
| 5 Jun 2025, 08:55 | 96.4 | 96.4% |
| 13 May 2025, 12:02 | 139.4 | 139.4% |
| 1 Apr 2025, 11:17 | 102.3 | 102.3% |
| 20 Feb 2025, 09:37 | 96.7 | 96.7% |
| 8 Jan 2025, 13:07 | 88.2 | 88.2% |
| 5 Dec 2024, 15:20 | 92.5 | 92.5% |
| 3 Sep 2024, 14:47 | 101.8 | 101.8% |
| 6 Aug 2024, 08:12 | 103 | 103% |
| 10 Jul 2024, 12:31 | 96.8 | 96.8% |
| 2 Feb 2024, 07:36 | 88.8 | 88.8% |
| 4 Jan 2024, 11:01 | 83.4 | 83.4% |
| 1 Dec 2023, 10:54 | 82.8 | 82.8% |
Dissolved oxygen
as O2 · code 9924 · mg/l
9.01 mg/l
Sampled 10 Aug 2026, 52 days ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Aug 2026, 14:04 | 9.01 | 9.01 mg/l |
| 14 Jul 2026, 12:17 | 8.71 | 8.71 mg/l |
| 10 Jun 2026, 11:34 | 9.96 | 9.96 mg/l |
| 22 May 2026, 10:17 | 15.4 | 15.4 mg/l |
| 9 Apr 2026, 09:52 | 11.2 | 11.2 mg/l |
| 9 Feb 2026, 14:07 | 9.88 | 9.88 mg/l |
| 2 Jan 2026, 13:46 | 11.8 | 11.8 mg/l |
| 2 Dec 2025, 10:47 | 10.6 | 10.6 mg/l |
| 10 Sep 2025, 13:22 | 9.72 | 9.72 mg/l |
| 1 Aug 2025, 10:20 | 11 | 11 mg/l |
| 3 Jul 2025, 11:06 | 7.11 | 7.11 mg/l |
| 5 Jun 2025, 08:55 | 9.67 | 9.67 mg/l |
| 13 May 2025, 12:02 | 13 | 13 mg/l |
| 1 Apr 2025, 11:17 | 11.2 | 11.2 mg/l |
| 20 Feb 2025, 09:37 | 11.6 | 11.6 mg/l |
| 8 Jan 2025, 13:07 | 11.3 | 11.3 mg/l |
| 5 Dec 2024, 15:20 | 10.5 | 10.5 mg/l |
| 3 Sep 2024, 14:47 | 9.2 | 9.2 mg/l |
| 6 Aug 2024, 08:12 | 9.51 | 9.51 mg/l |
| 10 Jul 2024, 12:31 | 9.29 | 9.29 mg/l |
| 2 Feb 2024, 07:36 | 10.4 | 10.4 mg/l |
| 4 Jan 2024, 11:01 | 9.67 | 9.67 mg/l |
| 1 Dec 2023, 10:54 | 10.4 | 10.4 mg/l |
Water temperature
code 0076 · °C
21.4 °C
Sampled 10 Aug 2026, 52 days ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Aug 2026, 14:04 | 21.4 | 21.4 °C |
| 14 Jul 2026, 12:17 | 19.5 | 19.5 °C |
| 10 Jun 2026, 11:34 | 15.8 | 15.8 °C |
| 22 May 2026, 10:17 | 17.8 | 17.8 °C |
| 9 Apr 2026, 09:52 | 14 | 14 °C |
| 9 Feb 2026, 14:07 | 8.6 | 8.6 °C |
| 2 Jan 2026, 13:46 | 4.5 | 4.5 °C |
| 2 Dec 2025, 10:47 | 9.2 | 9.2 °C |
| 10 Sep 2025, 13:22 | 16.4 | 16.4 °C |
| 1 Aug 2025, 10:20 | 18.2 | 18.2 °C |
| 3 Jul 2025, 11:06 | 21 | 21 °C |
| 5 Jun 2025, 08:55 | 15.1 | 15.1 °C |
| 13 May 2025, 12:02 | 18.6 | 18.6 °C |
| 1 Apr 2025, 11:17 | 11.4 | 11.4 °C |
| 20 Feb 2025, 09:37 | 7.4 | 7.4 °C |
| 8 Jan 2025, 13:07 | 4.9 | 4.9 °C |
| 5 Dec 2024, 15:20 | 9.7 | 9.7 °C |
| 3 Sep 2024, 14:47 | 20.2 | 20.2 °C |
| 6 Aug 2024, 08:12 | 19.1 | 19.1 °C |
| 10 Jul 2024, 12:31 | 17.2 | 17.2 °C |
| 2 Feb 2024, 07:36 | 8.2 | 8.2 °C |
| 4 Jan 2024, 11:01 | 8.8 | 8.8 °C |
| 1 Dec 2023, 10:54 | 5.5 | 5.5 °C |
pH
code 0061
7.98
Sampled 10 Aug 2026, 52 days ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Aug 2026, 14:04 | 7.98 | 7.98 |
| 14 Jul 2026, 12:17 | 8.06 | 8.06 |
| 10 Jun 2026, 11:34 | 8.04 | 8.04 |
| 22 May 2026, 10:17 | 8.24 | 8.24 |
| 9 Apr 2026, 09:52 | 8 | 8 |
| 9 Feb 2026, 14:07 | 7.77 | 7.77 |
| 2 Jan 2026, 13:46 | 8.08 | 8.08 |
| 2 Dec 2025, 10:47 | 8 | 8 |
| 10 Sep 2025, 13:22 | 8.01 | 8.01 |
| 1 Aug 2025, 10:20 | 8.09 | 8.09 |
| 3 Jul 2025, 11:06 | 7.69 | 7.69 |
| 5 Jun 2025, 08:55 | 7.97 | 7.97 |
| 13 May 2025, 12:02 | 8.05 | 8.05 |
| 1 Apr 2025, 11:17 | 8.03 | 8.03 |
| 20 Feb 2025, 09:37 | 8.02 | 8.02 |
| 8 Jan 2025, 13:07 | 7.8 | 7.8 |
| 5 Dec 2024, 15:20 | 7.87 | 7.87 |
| 3 Sep 2024, 14:47 | 7.92 | 7.92 |
| 6 Aug 2024, 08:12 | 7.93 | 7.93 |
| 10 Jul 2024, 12:31 | 7.94 | 7.94 |
| 2 Feb 2024, 07:36 | 8.02 | 8.02 |
| 4 Jan 2024, 11:01 | 7.94 | 7.94 |
| 1 Dec 2023, 10:54 | 7.77 | 7.77 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 10 Aug 2026, 52 days ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Aug 2026, 14:04 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Jul 2026, 12:17 | 0.082 | 0.082 mg/l |
| 10 Jun 2026, 11:34 | 0.051 | 0.051 mg/l |
| 22 May 2026, 10:17 | 0.072 | 0.072 mg/l |
| 9 Apr 2026, 09:52 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Feb 2026, 14:07 | 0.09 | 0.09 mg/l |
| 2 Jan 2026, 13:46 | 0.054 | 0.054 mg/l |
| 2 Dec 2025, 10:47 | 0.069 | 0.069 mg/l |
| 10 Sep 2025, 13:22 | 0.052 | 0.052 mg/l |
| 1 Aug 2025, 10:20 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Jul 2025, 11:06 | 0.12 | 0.12 mg/l |
| 5 Jun 2025, 08:55 | 0.06 | 0.06 mg/l |
| 13 May 2025, 12:02 | 0.1 | 0.1 mg/l |
| 1 Apr 2025, 11:17 | 0.033 | 0.033 mg/l |
| 20 Feb 2025, 09:37 | 0.059 | 0.059 mg/l |
| 8 Jan 2025, 13:07 | 0.1 | 0.1 mg/l |
| 3 Sep 2024, 14:47 | 0.046 | 0.046 mg/l |
| 6 Aug 2024, 08:12 | 0.043 | 0.043 mg/l |
| 10 Jul 2024, 12:31 | 0.043 | 0.043 mg/l |
| 2 Feb 2024, 07:36 | 0.044 | 0.044 mg/l |
| 4 Jan 2024, 11:01 | 0.1 | 0.1 mg/l |
| 1 Dec 2023, 10:54 | 0.062 | 0.062 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
13.9 mg/l
Sampled 10 Aug 2026, 52 days ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Aug 2026, 14:04 | 13.9 | 13.9 mg/l |
| 14 Jul 2026, 12:17 | 9.64 | 9.64 mg/l |
| 10 Jun 2026, 11:34 | 11 | 11 mg/l |
| 22 May 2026, 10:17 | 12 | 12 mg/l |
| 9 Apr 2026, 09:52 | 9.78 | 9.78 mg/l |
| 9 Feb 2026, 14:07 | 5.56 | 5.56 mg/l |
| 2 Jan 2026, 13:46 | 13 | 13 mg/l |
| 2 Dec 2025, 10:47 | 11 | 11 mg/l |
| 10 Sep 2025, 13:22 | 12 | 12 mg/l |
| 1 Aug 2025, 10:20 | 9.77 | 9.77 mg/l |
| 3 Jul 2025, 11:06 | 10.9 | 10.9 mg/l |
| 5 Jun 2025, 08:55 | 12 | 12 mg/l |
| 13 May 2025, 12:02 | 9.96 | 9.96 mg/l |
| 1 Apr 2025, 11:17 | 11 | 11 mg/l |
| 20 Feb 2025, 09:37 | 9.97 | 9.97 mg/l |
| 8 Jan 2025, 13:07 | 6.17 | 6.17 mg/l |
| 3 Sep 2024, 14:47 | 11 | 11 mg/l |
| 6 Aug 2024, 08:12 | 9.95 | 9.95 mg/l |
| 10 Jul 2024, 12:31 | 8.95 | 8.95 mg/l |
| 2 Feb 2024, 07:36 | 9.97 | 9.97 mg/l |
| 4 Jan 2024, 11:01 | 4.75 | 4.75 mg/l |
| 1 Dec 2023, 10:54 | 8.57 | 8.57 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.19 mg/l
Sampled 10 Aug 2026, 52 days ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Aug 2026, 14:04 | 0.19 | 0.19 mg/l |
| 14 Jul 2026, 12:17 | 0.26 | 0.26 mg/l |
| 10 Jun 2026, 11:34 | 0.25 | 0.25 mg/l |
| 22 May 2026, 10:17 | 0.14 | 0.14 mg/l |
| 9 Apr 2026, 09:52 | 0.19 | 0.19 mg/l |
| 9 Feb 2026, 14:07 | 0.18 | 0.18 mg/l |
| 2 Jan 2026, 13:46 | 0.18 | 0.18 mg/l |
| 2 Dec 2025, 10:47 | 0.23 | 0.23 mg/l |
| 10 Sep 2025, 13:22 | 0.37 | 0.37 mg/l |
| 1 Aug 2025, 10:20 | 0.19 | 0.19 mg/l |
| 3 Jul 2025, 11:06 | 0.2 | 0.2 mg/l |
| 5 Jun 2025, 08:55 | 0.29 | 0.29 mg/l |
| 13 May 2025, 12:02 | 0.15 | 0.15 mg/l |
| 1 Apr 2025, 11:17 | 0.17 | 0.17 mg/l |
| 20 Feb 2025, 09:37 | 0.14 | 0.14 mg/l |
| 8 Jan 2025, 13:07 | 0.19 | 0.19 mg/l |
| 3 Sep 2024, 14:47 | 0.25 | 0.25 mg/l |
| 6 Aug 2024, 08:12 | 0.24 | 0.24 mg/l |
| 10 Jul 2024, 12:31 | 0.22 | 0.22 mg/l |
| 2 Feb 2024, 07:36 | 0.19 | 0.19 mg/l |
| 4 Jan 2024, 11:01 | 0.17 | 0.17 mg/l |
| 1 Dec 2023, 10:54 | 0.19 | 0.19 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
798 µS/cm
Sampled 10 Aug 2026, 52 days ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Aug 2026, 14:04 | 798 | 798 µS/cm |
| 14 Jul 2026, 12:17 | 700 | 700 µS/cm |
| 10 Jun 2026, 11:34 | 677 | 677 µS/cm |
| 22 May 2026, 10:17 | 690 | 690 µS/cm |
| 9 Apr 2026, 09:52 | 699 | 699 µS/cm |
| 9 Feb 2026, 14:07 | 517 | 517 µS/cm |
| 2 Jan 2026, 13:46 | 749 | 749 µS/cm |
| 2 Dec 2025, 10:47 | 676 | 676 µS/cm |
| 10 Sep 2025, 13:22 | 699 | 699 µS/cm |
| 1 Aug 2025, 10:20 | 715 | 715 µS/cm |
| 3 Jul 2025, 11:06 | 754 | 754 µS/cm |
| 5 Jun 2025, 08:55 | 721 | 721 µS/cm |
| 13 May 2025, 12:02 | 693 | 693 µS/cm |
| 1 Apr 2025, 11:17 | 709 | 709 µS/cm |
| 20 Feb 2025, 09:37 | 770 | 770 µS/cm |
| 8 Jan 2025, 13:07 | 506 | 506 µS/cm |
| 5 Dec 2024, 15:20 | 700 | 700 µS/cm |
| 3 Sep 2024, 14:47 | 725 | 725 µS/cm |
| 6 Aug 2024, 08:12 | 728 | 728 µS/cm |
| 10 Jul 2024, 12:31 | 686 | 686 µS/cm |
| 2 Feb 2024, 07:36 | 716 | 716 µS/cm |
| 4 Jan 2024, 11:01 | 465 | 465 µS/cm |
| 1 Dec 2023, 10:54 | 658 | 658 µS/cm |
Everything measured here
14 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 16 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 23 | Dec 2023 – Aug 2026 | 102.1% 10 Aug 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 23 | Dec 2023 – Aug 2026 | 9.01 mg/l 10 Aug 2026 |
| Temperature of Water 0076 | River water | 23 | Dec 2023 – Aug 2026 | 21.4 °C 10 Aug 2026 |
| pH 0061 | River water | 23 | Dec 2023 – Aug 2026 | 7.98 10 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 22 | Dec 2023 – Aug 2026 | below 0.03 mg/l 10 Aug 2026 |
| Nitrate as N 0117 | River water | 22 | Dec 2023 – Aug 2026 | 13.9 mg/l 10 Aug 2026 |
| Orthophosphate, reactive as P 0180 | River water | 22 | Dec 2023 – Aug 2026 | 0.19 mg/l 10 Aug 2026 |
| Conductivity at 25 C 0077 | River water | 23 | Dec 2023 – Aug 2026 | 798 µS/cm 10 Aug 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 22 | Dec 2023 – Aug 2026 | 200 mg/l 10 Aug 2026 |
| Ammonia un-ionised as N 0119 | River water | 22 | Dec 2023 – Aug 2026 | below 0.0012 mg/l 10 Aug 2026 |
| Chlorophyll : Acetone Extract 7887 | River water | 24 | Dec 2023 – Aug 2026 | 38 µg/l 10 Aug 2026 |
| Nitrite as N 0118 | River water | 22 | Dec 2023 – Aug 2026 | 0.053 mg/l 10 Aug 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 22 | Dec 2023 – Aug 2026 | 14 mg/l 10 Aug 2026 |
| Volume of Sample Filtered 4865 | River water | 25 | Dec 2023 – Aug 2026 | 0 millilitre 10 Aug 2026 |
| Chlorophyll : Acetone Extract 7887 | Estuarine water | 2 | Apr 2024 – May 2024 | 39 µg/l 7 May 2024 |
| Volume of Sample Filtered 4865 | Estuarine water | 2 | Apr 2024 – May 2024 | 0 millilitre 7 May 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.