Great Stour Wye Bridge
EA name: GREAT STOUR WYE BRIDGE (also listed as “GREAT STOUR - WYE BRIDGE”)
Environment Agency sampling point SO-E0001292 · 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
- 3 Sep 2026, 10:0328 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 28 since 16 Oct 2023 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Environmental monitoring statutory (EU directives)
- Where
- National Grid 604855, 146873As published, to the nearest 1 m. Open in a map
- River, by its own name
- Great Stour
- River, by the map
- Great StourPlaced on the river its name gives, 7 m from the line.
- Nearest gauge upstream
- Aylesford Stream On the Old Mill Stream · 11 km along the riverSOUTH WILLESBOROUGH GS 11 km along the riverChart Leacon On the Great Stour · 12 km along the river
- Why it was sampled
- Monitoring (national agency policy) (22 samples)
Environmental monitoring statutory (EU directives) (6 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
72.2%
Sampled 3 Sep 2026, 28 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 10:03 | 72.2 | 72.2% |
| 5 Aug 2026, 08:58 | 67.2 | 67.2% |
| 8 Jul 2026, 08:35 | 74.4 | 74.4% |
| 4 Jun 2026, 08:57 | 80.4 | 80.4% |
| 18 May 2026, 12:15 | 93.8 | 93.8% |
| 9 Apr 2026, 13:45 | 105.8 | 105.8% |
| 17 Dec 2025, 11:38 | 89.5 | 89.5% |
| 1 Dec 2025, 09:47 | 89.5 | 89.5% |
| 18 Nov 2025, 13:48 | 88.4 | 88.4% |
| 4 Nov 2025, 13:11 | 82.8 | 82.8% |
| 12 Mar 2025, 11:12 | 94.9 | 94.9% |
| 6 Feb 2025, 10:59 | 95.3 | 95.3% |
| 23 Jan 2025, 08:52 | 92.7 | 92.7% |
| 4 Dec 2024, 14:04 | 92.4 | 92.4% |
| 18 Nov 2024, 12:19 | 87.7 | 87.7% |
| 14 Oct 2024, 13:53 | 83.2 | 83.2% |
| 16 Sep 2024, 12:52 | 71 | 71% |
| 21 Aug 2024, 10:29 | 67.1 | 67.1% |
| 16 Jul 2024, 07:58 | 80.2 | 80.2% |
| 19 Jun 2024, 14:22 | 101.1 | 101.1% |
| 22 May 2024, 09:59 | 77.7 | 77.7% |
| 23 Apr 2024, 09:34 | 91.5 | 91.5% |
| 20 Mar 2024, 11:23 | 94.4 | 94.4% |
| 22 Feb 2024, 09:16 | 92.4 | 92.4% |
| 15 Jan 2024, 11:02 | 93.8 | 93.8% |
| 5 Dec 2023, 11:25 | 85.8 | 85.8% |
| 20 Nov 2023, 09:15 | 83.7 | 83.7% |
| 16 Oct 2023, 09:31 | 77.8 | 77.8% |
Dissolved oxygen
as O2 · code 9924 · mg/l
6.78 mg/l
Sampled 3 Sep 2026, 28 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 10:03 | 6.78 | 6.78 mg/l |
| 5 Aug 2026, 08:58 | 5.94 | 5.94 mg/l |
| 8 Jul 2026, 08:35 | 6.59 | 6.59 mg/l |
| 4 Jun 2026, 08:57 | 7.97 | 7.97 mg/l |
| 18 May 2026, 12:15 | 9.86 | 9.86 mg/l |
| 9 Apr 2026, 13:45 | 10.6 | 10.6 mg/l |
| 17 Dec 2025, 11:38 | 10.3 | 10.3 mg/l |
| 1 Dec 2025, 09:47 | 10.6 | 10.6 mg/l |
| 18 Nov 2025, 13:48 | 10.5 | 10.5 mg/l |
| 4 Nov 2025, 13:11 | 8.76 | 8.76 mg/l |
| 12 Mar 2025, 11:12 | 11.3 | 11.3 mg/l |
| 6 Feb 2025, 10:59 | 11.8 | 11.8 mg/l |
| 23 Jan 2025, 08:52 | 11.7 | 11.7 mg/l |
| 4 Dec 2024, 14:04 | 11 | 11 mg/l |
| 18 Nov 2024, 12:19 | 9.93 | 9.93 mg/l |
| 14 Oct 2024, 13:53 | 9.07 | 9.07 mg/l |
| 16 Sep 2024, 12:52 | 7.05 | 7.05 mg/l |
| 21 Aug 2024, 10:29 | 6.44 | 6.44 mg/l |
| 16 Jul 2024, 07:58 | 7.81 | 7.81 mg/l |
| 19 Jun 2024, 14:22 | 9.75 | 9.75 mg/l |
| 22 May 2024, 09:59 | 7.87 | 7.87 mg/l |
| 23 Apr 2024, 09:34 | 10.4 | 10.4 mg/l |
| 20 Mar 2024, 11:23 | 10.3 | 10.3 mg/l |
| 22 Feb 2024, 09:16 | 10.5 | 10.5 mg/l |
| 15 Jan 2024, 11:02 | 12 | 12 mg/l |
| 5 Dec 2023, 11:25 | 10.4 | 10.4 mg/l |
| 20 Nov 2023, 09:15 | 9.41 | 9.41 mg/l |
| 16 Oct 2023, 09:31 | 8.7 | 8.7 mg/l |
Water temperature
code 0076 · °C
18.3 °C
Sampled 3 Sep 2026, 28 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 10:03 | 18.3 | 18.3 °C |
| 5 Aug 2026, 08:58 | 21.3 | 21.3 °C |
| 8 Jul 2026, 08:35 | 21.2 | 21.2 °C |
| 4 Jun 2026, 08:57 | 15.7 | 15.7 °C |
| 18 May 2026, 12:15 | 13 | 13 °C |
| 9 Apr 2026, 13:45 | 15.1 | 15.1 °C |
| 17 Dec 2025, 11:38 | 9.3 | 9.3 °C |
| 1 Dec 2025, 09:47 | 8 | 8 °C |
| 18 Nov 2025, 13:48 | 7.8 | 7.8 °C |
| 4 Nov 2025, 13:11 | 12.7 | 12.7 °C |
| 12 Mar 2025, 11:12 | 7.6 | 7.6 °C |
| 6 Feb 2025, 10:59 | 6.2 | 6.2 °C |
| 23 Jan 2025, 08:52 | 5.5 | 5.5 °C |
| 4 Dec 2024, 14:04 | 7.9 | 7.9 °C |
| 18 Nov 2024, 12:19 | 9.8 | 9.8 °C |
| 14 Oct 2024, 13:53 | 11.4 | 11.4 °C |
| 16 Sep 2024, 12:52 | 15.6 | 15.6 °C |
| 21 Aug 2024, 10:29 | 17.2 | 17.2 °C |
| 16 Jul 2024, 07:58 | 16.5 | 16.5 °C |
| 19 Jun 2024, 14:22 | 17 | 17 °C |
| 22 May 2024, 09:59 | 14.7 | 14.7 °C |
| 23 Apr 2024, 09:34 | 9.8 | 9.8 °C |
| 20 Mar 2024, 11:23 | 11.3 | 11.3 °C |
| 22 Feb 2024, 09:16 | 9.7 | 9.7 °C |
| 15 Jan 2024, 11:02 | 4.9 | 4.9 °C |
| 5 Dec 2023, 11:25 | 7.1 | 7.1 °C |
| 20 Nov 2023, 09:15 | 10.1 | 10.1 °C |
| 16 Oct 2023, 09:31 | 10.3 | 10.3 °C |
pH
code 0061
7.57
Sampled 3 Sep 2026, 28 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 10:03 | 7.57 | 7.57 |
| 5 Aug 2026, 08:58 | 7.28 | 7.28 |
| 8 Jul 2026, 08:35 | 7.6 | 7.6 |
| 4 Jun 2026, 08:57 | 7.6 | 7.6 |
| 18 May 2026, 12:15 | 7.9 | 7.9 |
| 9 Apr 2026, 13:45 | 8.04 | 8.04 |
| 17 Dec 2025, 11:38 | 8.21 | 8.21 |
| 1 Dec 2025, 09:47 | 7.96 | 7.96 |
| 18 Nov 2025, 13:48 | 7.8 | 7.8 |
| 4 Nov 2025, 13:11 | 7.82 | 7.82 |
| 12 Mar 2025, 11:12 | 8.1 | 8.1 |
| 6 Feb 2025, 10:59 | 8.02 | 8.02 |
| 23 Jan 2025, 08:52 | 8.01 | 8.01 |
| 4 Dec 2024, 14:04 | 7.81 | 7.81 |
| 18 Nov 2024, 12:19 | 7.81 | 7.81 |
| 14 Oct 2024, 13:53 | 7.74 | 7.74 |
| 16 Sep 2024, 12:52 | 7.61 | 7.61 |
| 21 Aug 2024, 10:29 | 7.53 | 7.53 |
| 16 Jul 2024, 07:58 | 7.73 | 7.73 |
| 19 Jun 2024, 14:22 | 8.13 | 8.13 |
| 22 May 2024, 09:59 | 7.9 | 7.9 |
| 23 Apr 2024, 09:34 | 8.09 | 8.09 |
| 20 Mar 2024, 11:23 | 8.02 | 8.02 |
| 22 Feb 2024, 09:16 | 7.9 | 7.9 |
| 15 Jan 2024, 11:02 | 8.24 | 8.24 |
| 5 Dec 2023, 11:25 | 7.72 | 7.72 |
| 20 Nov 2023, 09:15 | 7.74 | 7.74 |
| 16 Oct 2023, 09:31 | 7.73 | 7.73 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.044 mg/l
Sampled 3 Sep 2026, 28 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 10:03 | 0.044 | 0.044 mg/l |
| 8 Jul 2026, 08:35 | 0.053 | 0.053 mg/l |
| 4 Jun 2026, 08:57 | 0.081 | 0.081 mg/l |
| 18 May 2026, 12:15 | 0.04 | 0.04 mg/l |
| 9 Apr 2026, 13:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Dec 2025, 11:38 | 0.049 | 0.049 mg/l |
| 1 Dec 2025, 09:47 | 0.038 | 0.038 mg/l |
| 18 Nov 2025, 13:48 | 0.042 | 0.042 mg/l |
| 4 Nov 2025, 13:11 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Mar 2025, 11:12 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Feb 2025, 10:59 | 0.034 | 0.034 mg/l |
| 23 Jan 2025, 08:52 | 0.047 | 0.047 mg/l |
| 4 Dec 2024, 14:04 | 0.04 | 0.04 mg/l |
| 18 Nov 2024, 12:19 | 0.041 | 0.041 mg/l |
| 14 Oct 2024, 13:53 | 0.05 | 0.05 mg/l |
| 16 Sep 2024, 12:52 | 0.83 | 0.83 mg/l |
| 21 Aug 2024, 10:29 | 0.078 | 0.078 mg/l |
| 16 Jul 2024, 07:58 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Jun 2024, 14:22 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 May 2024, 09:59 | 0.3 | 0.3 mg/l |
| 23 Apr 2024, 09:34 | 0.48 | 0.48 mg/l |
| 20 Mar 2024, 11:23 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Feb 2024, 09:16 | 0.062 | 0.062 mg/l |
| 15 Jan 2024, 11:02 | 0.041 | 0.041 mg/l |
| 5 Dec 2023, 11:25 | 0.18 | 0.18 mg/l |
| 20 Nov 2023, 09:15 | 0.053 | 0.053 mg/l |
| 16 Oct 2023, 09:31 | 0.046 | 0.046 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
19.9 mg/l
Sampled 3 Sep 2026, 28 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 10:03 | 19.9 | 19.9 mg/l |
| 5 Aug 2026, 08:58 | 38.9 | 38.9 mg/l |
| 8 Jul 2026, 08:35 | 19.9 | 19.9 mg/l |
| 4 Jun 2026, 08:57 | 17 | 17 mg/l |
| 18 May 2026, 12:15 | 20.9 | 20.9 mg/l |
| 9 Apr 2026, 13:45 | 13 | 13 mg/l |
| 17 Dec 2025, 11:38 | 13 | 13 mg/l |
| 1 Dec 2025, 09:47 | 12 | 12 mg/l |
| 18 Nov 2025, 13:48 | 12 | 12 mg/l |
| 4 Nov 2025, 13:11 | 12 | 12 mg/l |
| 12 Mar 2025, 11:12 | 13 | 13 mg/l |
| 6 Feb 2025, 10:59 | 9.98 | 9.98 mg/l |
| 23 Jan 2025, 08:52 | 12 | 12 mg/l |
| 18 Nov 2024, 12:19 | 18 | 18 mg/l |
| 14 Oct 2024, 13:53 | 11 | 11 mg/l |
| 16 Sep 2024, 12:52 | 20.6 | 20.6 mg/l |
| 21 Aug 2024, 10:29 | 16.9 | 16.9 mg/l |
| 16 Jul 2024, 07:58 | 11 | 11 mg/l |
| 19 Jun 2024, 14:22 | 16.9 | 16.9 mg/l |
| 22 May 2024, 09:59 | 11.9 | 11.9 mg/l |
| 23 Apr 2024, 09:34 | 12.9 | 12.9 mg/l |
| 20 Mar 2024, 11:23 | 7.28 | 7.28 mg/l |
| 22 Feb 2024, 09:16 | 6.77 | 6.77 mg/l |
| 15 Jan 2024, 11:02 | 9.58 | 9.58 mg/l |
| 5 Dec 2023, 11:25 | 5.27 | 5.27 mg/l |
| 20 Nov 2023, 09:15 | 7.36 | 7.36 mg/l |
| 16 Oct 2023, 09:31 | 17 | 17 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.18 mg/l
Sampled 3 Sep 2026, 28 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 10:03 | 0.18 | 0.18 mg/l |
| 8 Jul 2026, 08:35 | 0.26 | 0.26 mg/l |
| 4 Jun 2026, 08:57 | 0.21 | 0.21 mg/l |
| 18 May 2026, 12:15 | 0.13 | 0.13 mg/l |
| 9 Apr 2026, 13:45 | 0.084 | 0.084 mg/l |
| 17 Dec 2025, 11:38 | 0.097 | 0.097 mg/l |
| 1 Dec 2025, 09:47 | 0.11 | 0.11 mg/l |
| 18 Nov 2025, 13:48 | 0.1 | 0.1 mg/l |
| 4 Nov 2025, 13:11 | 0.11 | 0.11 mg/l |
| 12 Mar 2025, 11:12 | 0.078 | 0.078 mg/l |
| 6 Feb 2025, 10:59 | 0.072 | 0.072 mg/l |
| 23 Jan 2025, 08:52 | 0.077 | 0.077 mg/l |
| 4 Dec 2024, 14:04 | 0.075 | 0.075 mg/l |
| 18 Nov 2024, 12:19 | 0.091 | 0.091 mg/l |
| 14 Oct 2024, 13:53 | 0.1 | 0.1 mg/l |
| 16 Sep 2024, 12:52 | 0.14 | 0.14 mg/l |
| 21 Aug 2024, 10:29 | 0.16 | 0.16 mg/l |
| 16 Jul 2024, 07:58 | 0.11 | 0.11 mg/l |
| 19 Jun 2024, 14:22 | 0.12 | 0.12 mg/l |
| 22 May 2024, 09:59 | 0.11 | 0.11 mg/l |
| 23 Apr 2024, 09:34 | 0.037 | 0.037 mg/l |
| 20 Mar 2024, 11:23 | 0.074 | 0.074 mg/l |
| 22 Feb 2024, 09:16 | 0.09 | 0.09 mg/l |
| 15 Jan 2024, 11:02 | 0.07 | 0.07 mg/l |
| 5 Dec 2023, 11:25 | 0.11 | 0.11 mg/l |
| 20 Nov 2023, 09:15 | 0.11 | 0.11 mg/l |
| 16 Oct 2023, 09:31 | 0.15 | 0.15 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
839 µS/cm
Sampled 3 Sep 2026, 28 days ago · 28 results banked
Every result (28)
| Sampled | Result as published | Reads as |
|---|---|---|
| 3 Sep 2026, 10:03 | 839 | 839 µS/cm |
| 5 Aug 2026, 08:58 | 1031 | 1031 µS/cm |
| 8 Jul 2026, 08:35 | 891 | 891 µS/cm |
| 4 Jun 2026, 08:57 | 716 | 716 µS/cm |
| 18 May 2026, 12:15 | 810 | 810 µS/cm |
| 9 Apr 2026, 13:45 | 731 | 731 µS/cm |
| 17 Dec 2025, 11:38 | 899 | 899 µS/cm |
| 1 Dec 2025, 09:47 | 675 | 675 µS/cm |
| 18 Nov 2025, 13:48 | 750 | 750 µS/cm |
| 4 Nov 2025, 13:11 | 646 | 646 µS/cm |
| 12 Mar 2025, 11:12 | 720 | 720 µS/cm |
| 6 Feb 2025, 10:59 | 681 | 681 µS/cm |
| 23 Jan 2025, 08:52 | 726 | 726 µS/cm |
| 4 Dec 2024, 14:04 | 646 | 646 µS/cm |
| 18 Nov 2024, 12:19 | 810 | 810 µS/cm |
| 14 Oct 2024, 13:53 | 666 | 666 µS/cm |
| 16 Sep 2024, 12:52 | 857 | 857 µS/cm |
| 21 Aug 2024, 10:29 | 806 | 806 µS/cm |
| 16 Jul 2024, 07:58 | 683 | 683 µS/cm |
| 19 Jun 2024, 14:22 | 795 | 795 µS/cm |
| 22 May 2024, 09:59 | 708 | 708 µS/cm |
| 23 Apr 2024, 09:34 | 730 | 730 µS/cm |
| 20 Mar 2024, 11:23 | 643 | 643 µS/cm |
| 22 Feb 2024, 09:16 | 577 | 577 µS/cm |
| 15 Jan 2024, 11:02 | 674 | 674 µS/cm |
| 5 Dec 2023, 11:25 | 466 | 466 µS/cm |
| 20 Nov 2023, 09:15 | 551 | 551 µS/cm |
| 16 Oct 2023, 09:31 | 751 | 751 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 13 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 28 | Oct 2023 – Sep 2026 | 72.2% 3 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 28 | Oct 2023 – Sep 2026 | 6.78 mg/l 3 Sep 2026 |
| Temperature of Water 0076 | River water | 28 | Oct 2023 – Sep 2026 | 18.3 °C 3 Sep 2026 |
| pH 0061 | River water | 28 | Oct 2023 – Sep 2026 | 7.57 3 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 27 | Oct 2023 – Sep 2026 | 0.044 mg/l 3 Sep 2026 |
| Nitrate as N 0117 | River water | 27 | Oct 2023 – Sep 2026 | 19.9 mg/l 3 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 27 | Oct 2023 – Sep 2026 | 0.18 mg/l 3 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 28 | Oct 2023 – Sep 2026 | 839 µS/cm 3 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 28 | Oct 2023 – Sep 2026 | 140 mg/l 3 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 27 | Oct 2023 – Sep 2026 | 0.00056 mg/l 3 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 18 | Feb 2024 – Dec 2025 | 1.3 mg/l 17 Dec 2025 |
| Nitrite as N 0118 | River water | 28 | Oct 2023 – Sep 2026 | 0.066 mg/l 3 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 27 | Oct 2023 – Sep 2026 | 20 mg/l 3 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.