Merriott Stream Merriottsford
EA name: MERRIOTT STM MERRIOTTSFORD
Environment Agency sampling point SW-E3090400 · 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
- 1 Sep 2026, 09:5330 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 27 since 19 Jun 2024 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 344337, 112114As 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
- Not placedTwo watercourses within reach (9 m and 20 m) and no name to choose by. The river map cannot say which watercourse this is.
- Next gauge downstream
- Not known
- Why it was sampled
- Monitoring (national agency policy) (22 samples)
Environmental monitoring statutory (EU directives) (5 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
95%
Sampled 1 Sep 2026, 30 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:53 | 95 | 95% |
| 12 Aug 2026, 10:16 | 85.2 | 85.2% |
| 8 Jul 2026, 09:37 | 93.3 | 93.3% |
| 12 Jun 2026, 12:29 | 96.3 | 96.3% |
| 29 May 2026, 13:43 | 95.8 | 95.8% |
| 2 Mar 2026, 11:50 | 97 | 97% |
| 2 Feb 2026, 13:02 | 98.1 | 98.1% |
| 7 Jan 2026, 11:38 | 94.5 | 94.5% |
| 3 Dec 2025, 12:20 | 94.5 | 94.5% |
| 5 Nov 2025, 13:46 | 93.9 | 93.9% |
| 1 Oct 2025, 11:20 | 93.3 | 93.3% |
| 1 Sep 2025, 14:04 | 94.9 | 94.9% |
| 4 Aug 2025, 11:53 | 96 | 96% |
| 17 Jul 2025, 12:50 | 98.8 | 98.8% |
| 30 Jun 2025, 11:03 | 101.3 | 101.3% |
| 12 May 2025, 12:17 | 98.5 | 98.5% |
| 10 Apr 2025, 12:24 | 103.9 | 103.9% |
| 27 Mar 2025, 12:23 | 101.9 | 101.9% |
| 13 Feb 2025, 12:01 | 98.1 | 98.1% |
| 24 Jan 2025, 10:38 | 98.8 | 98.8% |
| 3 Dec 2024, 13:18 | 95.6 | 95.6% |
| 19 Nov 2024, 09:17 | 93.8 | 93.8% |
| 18 Oct 2024, 16:05 | 94.1 | 94.1% |
| 24 Sep 2024, 13:00 | 93.9 | 93.9% |
| 21 Aug 2024, 09:03 | 93.5 | 93.5% |
| 23 Jul 2024, 10:27 | 94 | 94% |
| 19 Jun 2024, 09:41 | 96.2 | 96.2% |
Dissolved oxygen
as O2 · code 9924 · mg/l
9.77 mg/l
Sampled 1 Sep 2026, 30 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:53 | 9.77 | 9.77 mg/l |
| 12 Aug 2026, 10:16 | 8.35 | 8.35 mg/l |
| 8 Jul 2026, 09:37 | 9.26 | 9.26 mg/l |
| 12 Jun 2026, 12:29 | 9.79 | 9.79 mg/l |
| 29 May 2026, 13:43 | 9.64 | 9.64 mg/l |
| 2 Mar 2026, 11:50 | 10.7 | 10.7 mg/l |
| 2 Feb 2026, 13:02 | 11.5 | 11.5 mg/l |
| 7 Jan 2026, 11:38 | 11.7 | 11.7 mg/l |
| 3 Dec 2025, 12:20 | 11.1 | 11.1 mg/l |
| 5 Nov 2025, 13:46 | 9.83 | 9.83 mg/l |
| 1 Oct 2025, 11:20 | 10.1 | 10.1 mg/l |
| 1 Sep 2025, 14:04 | 9.38 | 9.38 mg/l |
| 4 Aug 2025, 11:53 | 9.35 | 9.35 mg/l |
| 17 Jul 2025, 12:50 | 9.66 | 9.66 mg/l |
| 30 Jun 2025, 11:03 | 9.91 | 9.91 mg/l |
| 12 May 2025, 12:17 | 10.4 | 10.4 mg/l |
| 10 Apr 2025, 12:24 | 11.8 | 11.8 mg/l |
| 27 Mar 2025, 12:23 | 11.5 | 11.5 mg/l |
| 13 Feb 2025, 12:01 | 11.9 | 11.9 mg/l |
| 24 Jan 2025, 10:38 | 11.7 | 11.7 mg/l |
| 3 Dec 2024, 13:18 | 11 | 11 mg/l |
| 19 Nov 2024, 09:17 | 10.4 | 10.4 mg/l |
| 18 Oct 2024, 16:05 | 9.96 | 9.96 mg/l |
| 24 Sep 2024, 13:00 | 9.67 | 9.67 mg/l |
| 21 Aug 2024, 09:03 | 9.76 | 9.76 mg/l |
| 23 Jul 2024, 10:27 | 9.5 | 9.5 mg/l |
| 19 Jun 2024, 09:41 | 10.3 | 10.3 mg/l |
Water temperature
code 0076 · °C
14 °C
Sampled 1 Sep 2026, 30 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:53 | 14 | 14 °C |
| 12 Aug 2026, 10:16 | 16.2 | 16.2 °C |
| 8 Jul 2026, 09:37 | 15.6 | 15.6 °C |
| 12 Jun 2026, 12:29 | 14.5 | 14.5 °C |
| 29 May 2026, 13:43 | 15 | 15 °C |
| 2 Mar 2026, 11:50 | 10.8 | 10.8 °C |
| 2 Feb 2026, 13:02 | 8.5 | 8.5 °C |
| 7 Jan 2026, 11:38 | 6.3 | 6.3 °C |
| 3 Dec 2025, 12:20 | 8.1 | 8.1 °C |
| 5 Nov 2025, 13:46 | 13.2 | 13.2 °C |
| 1 Oct 2025, 11:20 | 11.9 | 11.9 °C |
| 1 Sep 2025, 14:04 | 15.8 | 15.8 °C |
| 4 Aug 2025, 11:53 | 16.5 | 16.5 °C |
| 17 Jul 2025, 12:50 | 16.3 | 16.3 °C |
| 30 Jun 2025, 11:03 | 16.3 | 16.3 °C |
| 12 May 2025, 12:17 | 12.9 | 12.9 °C |
| 10 Apr 2025, 12:24 | 9.5 | 9.5 °C |
| 27 Mar 2025, 12:23 | 10.1 | 10.1 °C |
| 13 Feb 2025, 12:01 | 7.1 | 7.1 °C |
| 24 Jan 2025, 10:38 | 8 | 8 °C |
| 3 Dec 2024, 13:18 | 9.1 | 9.1 °C |
| 19 Nov 2024, 09:17 | 10.5 | 10.5 °C |
| 18 Oct 2024, 16:05 | 12.7 | 12.7 °C |
| 24 Sep 2024, 13:00 | 13.9 | 13.9 °C |
| 21 Aug 2024, 09:03 | 13.3 | 13.3 °C |
| 23 Jul 2024, 10:27 | 14.8 | 14.8 °C |
| 19 Jun 2024, 09:41 | 12.4 | 12.4 °C |
pH
code 0061
7.97
Sampled 1 Sep 2026, 30 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:53 | 7.97 | 7.97 |
| 12 Aug 2026, 10:16 | 7.77 | 7.77 |
| 8 Jul 2026, 09:37 | 8.16 | 8.16 |
| 12 Jun 2026, 12:29 | 8.2 | 8.2 |
| 29 May 2026, 13:43 | 8.11 | 8.11 |
| 2 Mar 2026, 11:50 | 7.97 | 7.97 |
| 2 Feb 2026, 13:02 | 7.96 | 7.96 |
| 7 Jan 2026, 11:38 | 8.15 | 8.15 |
| 3 Dec 2025, 12:20 | 7.95 | 7.95 |
| 5 Nov 2025, 13:46 | 7.85 | 7.85 |
| 1 Oct 2025, 11:20 | 8.19 | 8.19 |
| 1 Sep 2025, 14:04 | 7.97 | 7.97 |
| 4 Aug 2025, 11:53 | 8.11 | 8.11 |
| 17 Jul 2025, 12:50 | 8.15 | 8.15 |
| 30 Jun 2025, 11:03 | 8.19 | 8.19 |
| 12 May 2025, 12:17 | 8.1 | 8.1 |
| 10 Apr 2025, 12:24 | 8.22 | 8.22 |
| 27 Mar 2025, 12:23 | 8.26 | 8.26 |
| 13 Feb 2025, 12:01 | 8.16 | 8.16 |
| 24 Jan 2025, 10:38 | 7.78 | 7.78 |
| 3 Dec 2024, 13:18 | 8.05 | 8.05 |
| 19 Nov 2024, 09:17 | 7.96 | 7.96 |
| 18 Oct 2024, 16:05 | 7.98 | 7.98 |
| 24 Sep 2024, 13:00 | 7.91 | 7.91 |
| 21 Aug 2024, 09:03 | 7.97 | 7.97 |
| 23 Jul 2024, 10:27 | 8.01 | 8.01 |
| 19 Jun 2024, 09:41 | 7.95 | 7.95 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 1 Sep 2026, 30 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:53 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Aug 2026, 10:16 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Jul 2026, 09:37 | 0.14 | 0.14 mg/l |
| 12 Jun 2026, 12:29 | 0.037 | 0.037 mg/l |
| 29 May 2026, 13:43 | 0.05 | 0.05 mg/l |
| 2 Mar 2026, 11:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Feb 2026, 13:02 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Jan 2026, 11:38 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Dec 2025, 12:20 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Nov 2025, 13:46 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Oct 2025, 11:20 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Sep 2025, 14:04 | 0.031 | 0.031 mg/l |
| 4 Aug 2025, 11:53 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Jul 2025, 12:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 30 Jun 2025, 11:03 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 May 2025, 12:17 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Apr 2025, 12:24 | <0.03 | below 0.03 mg/l (not detected above this) |
| 27 Mar 2025, 12:23 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Feb 2025, 12:01 | 0.032 | 0.032 mg/l |
| 24 Jan 2025, 10:38 | 0.065 | 0.065 mg/l |
| 3 Dec 2024, 13:18 | 0.037 | 0.037 mg/l |
| 19 Nov 2024, 09:17 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Oct 2024, 16:05 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Sep 2024, 13:00 | 0.034 | 0.034 mg/l |
| 21 Aug 2024, 09:03 | <0.03 | below 0.03 mg/l (not detected above this) |
| 23 Jul 2024, 10:27 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Jun 2024, 09:41 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
1.59 mg/l
Sampled 1 Sep 2026, 30 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:53 | 1.59 | 1.59 mg/l |
| 12 Aug 2026, 10:16 | 4.69 | 4.69 mg/l |
| 8 Jul 2026, 09:37 | 1.95 | 1.95 mg/l |
| 12 Jun 2026, 12:29 | 1.89 | 1.89 mg/l |
| 29 May 2026, 13:43 | 2.08 | 2.08 mg/l |
| 2 Mar 2026, 11:50 | 2.39 | 2.39 mg/l |
| 2 Feb 2026, 13:02 | 2.59 | 2.59 mg/l |
| 7 Jan 2026, 11:38 | 1.99 | 1.99 mg/l |
| 3 Dec 2025, 12:20 | 2.69 | 2.69 mg/l |
| 5 Nov 2025, 13:46 | 2.19 | 2.19 mg/l |
| 1 Oct 2025, 11:20 | 1.39 | 1.39 mg/l |
| 1 Sep 2025, 14:04 | 1.49 | 1.49 mg/l |
| 4 Aug 2025, 11:53 | 1.79 | 1.79 mg/l |
| 17 Jul 2025, 12:50 | 1.89 | 1.89 mg/l |
| 30 Jun 2025, 11:03 | 1.99 | 1.99 mg/l |
| 12 May 2025, 12:17 | 1.99 | 1.99 mg/l |
| 10 Apr 2025, 12:24 | 2.19 | 2.19 mg/l |
| 27 Mar 2025, 12:23 | 2.49 | 2.49 mg/l |
| 13 Feb 2025, 12:01 | 2.69 | 2.69 mg/l |
| 24 Jan 2025, 10:38 | 2.49 | 2.49 mg/l |
| 3 Dec 2024, 13:18 | 2.69 | 2.69 mg/l |
| 19 Nov 2024, 09:17 | 1.89 | 1.89 mg/l |
| 18 Oct 2024, 16:05 | 2.39 | 2.39 mg/l |
| 24 Sep 2024, 13:00 | 2.19 | 2.19 mg/l |
| 21 Aug 2024, 09:03 | 1.99 | 1.99 mg/l |
| 23 Jul 2024, 10:27 | 2.29 | 2.29 mg/l |
| 19 Jun 2024, 09:41 | 2.39 | 2.39 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.084 mg/l
Sampled 1 Sep 2026, 30 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:53 | 0.084 | 0.084 mg/l |
| 12 Aug 2026, 10:16 | 0.12 | 0.12 mg/l |
| 8 Jul 2026, 09:37 | 0.12 | 0.12 mg/l |
| 12 Jun 2026, 12:29 | 0.077 | 0.077 mg/l |
| 29 May 2026, 13:43 | 0.081 | 0.081 mg/l |
| 2 Mar 2026, 11:50 | 0.066 | 0.066 mg/l |
| 2 Feb 2026, 13:02 | 0.072 | 0.072 mg/l |
| 7 Jan 2026, 11:38 | 0.06 | 0.06 mg/l |
| 3 Dec 2025, 12:20 | 0.06 | 0.06 mg/l |
| 5 Nov 2025, 13:46 | 0.084 | 0.084 mg/l |
| 1 Oct 2025, 11:20 | 0.072 | 0.072 mg/l |
| 1 Sep 2025, 14:04 | 0.11 | 0.11 mg/l |
| 4 Aug 2025, 11:53 | 0.075 | 0.075 mg/l |
| 17 Jul 2025, 12:50 | 0.073 | 0.073 mg/l |
| 30 Jun 2025, 11:03 | 0.081 | 0.081 mg/l |
| 12 May 2025, 12:17 | 0.05 | 0.05 mg/l |
| 10 Apr 2025, 12:24 | 0.035 | 0.035 mg/l |
| 27 Mar 2025, 12:23 | 0.037 | 0.037 mg/l |
| 13 Feb 2025, 12:01 | 0.048 | 0.048 mg/l |
| 24 Jan 2025, 10:38 | 0.072 | 0.072 mg/l |
| 3 Dec 2024, 13:18 | 0.063 | 0.063 mg/l |
| 19 Nov 2024, 09:17 | 0.073 | 0.073 mg/l |
| 18 Oct 2024, 16:05 | 0.074 | 0.074 mg/l |
| 24 Sep 2024, 13:00 | 0.078 | 0.078 mg/l |
| 21 Aug 2024, 09:03 | 0.079 | 0.079 mg/l |
| 23 Jul 2024, 10:27 | 0.065 | 0.065 mg/l |
| 19 Jun 2024, 09:41 | 0.056 | 0.056 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
653 µS/cm
Sampled 1 Sep 2026, 30 days ago · 27 results banked
Every result (27)
| Sampled | Result as published | Reads as |
|---|---|---|
| 1 Sep 2026, 09:53 | 653 | 653 µS/cm |
| 12 Aug 2026, 10:16 | 648 | 648 µS/cm |
| 8 Jul 2026, 09:37 | 649 | 649 µS/cm |
| 12 Jun 2026, 12:29 | 618 | 618 µS/cm |
| 29 May 2026, 13:43 | 621 | 621 µS/cm |
| 2 Mar 2026, 11:50 | 534 | 534 µS/cm |
| 2 Feb 2026, 13:02 | 504 | 504 µS/cm |
| 7 Jan 2026, 11:38 | 631 | 631 µS/cm |
| 3 Dec 2025, 12:20 | 558 | 558 µS/cm |
| 5 Nov 2025, 13:46 | 577 | 577 µS/cm |
| 1 Oct 2025, 11:20 | 657 | 657 µS/cm |
| 1 Sep 2025, 14:04 | 613 | 613 µS/cm |
| 4 Aug 2025, 11:53 | 638 | 638 µS/cm |
| 17 Jul 2025, 12:50 | 634 | 634 µS/cm |
| 30 Jun 2025, 11:03 | 708 | 708 µS/cm |
| 12 May 2025, 12:17 | 619 | 619 µS/cm |
| 10 Apr 2025, 12:24 | 601 | 601 µS/cm |
| 27 Mar 2025, 12:23 | 595 | 595 µS/cm |
| 13 Feb 2025, 12:01 | 584 | 584 µS/cm |
| 24 Jan 2025, 10:38 | 351 | 351 µS/cm |
| 3 Dec 2024, 13:18 | 560 | 560 µS/cm |
| 19 Nov 2024, 09:17 | 578 | 578 µS/cm |
| 18 Oct 2024, 16:05 | 574 | 574 µS/cm |
| 24 Sep 2024, 13:00 | 589 | 589 µS/cm |
| 21 Aug 2024, 09:03 | 636 | 636 µS/cm |
| 23 Jul 2024, 10:27 | 622 | 622 µS/cm |
| 19 Jun 2024, 09:41 | 672 | 672 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 | 27 | Jun 2024 – Sep 2026 | 95% 1 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 27 | Jun 2024 – Sep 2026 | 9.77 mg/l 1 Sep 2026 |
| Temperature of Water 0076 | River water | 27 | Jun 2024 – Sep 2026 | 14 °C 1 Sep 2026 |
| pH 0061 | River water | 27 | Jun 2024 – Sep 2026 | 7.97 1 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 27 | Jun 2024 – Sep 2026 | below 0.03 mg/l 1 Sep 2026 |
| Nitrate as N 0117 | River water | 27 | Jun 2024 – Sep 2026 | 1.59 mg/l 1 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 27 | Jun 2024 – Sep 2026 | 0.084 mg/l 1 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 27 | Jun 2024 – Sep 2026 | 653 µS/cm 1 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 27 | Jun 2024 – Sep 2026 | 270 mg/l 1 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 27 | Jun 2024 – Sep 2026 | below 0.00068 mg/l 1 Sep 2026 |
| BOD : 5 Day ATU 0085 | River water | 22 | Jun 2024 – May 2026 | below 1 mg/l 29 May 2026 |
| Nitrite as N 0118 | River water | 27 | Jun 2024 – Sep 2026 | 0.0072 mg/l 1 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 27 | Jun 2024 – Sep 2026 | 1.6 mg/l 1 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.