Foulness at Major Bridge - A163
EA name: FOULNESS AT MAJOR BRIDGE - A163
Environment Agency sampling point NE-49100406 · 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
- 20 May 2026, 15:404 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone). Not sampled since, as far as the archive shows: the Environment Agency was asked up to 30 Sep 2026 and had nothing newer.
- Samples banked
- 23 since 22 Jul 2024 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 478010, 438044As published, to the nearest 1 m. Open in a map
- River, by its own name
- Foulness
- River, by the map
- River FoulnessPlaced on the river its name gives, 4 m from the line.
- Next gauge downstream
- Holme House Farm On the River Foulness · 0.8 km along the river
- Why it was sampled
- Monitoring (national agency policy) (23 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
76.6%
Sampled 20 May 2026, 4 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 15:40 | 76.6 | 76.6% |
| 1 Apr 2026, 10:16 | 79.3 | 79.3% |
| 2 Mar 2026, 16:43 | 86.8 | 86.8% |
| 3 Feb 2026, 11:48 | 81 | 81% |
| 5 Jan 2026, 15:16 | 86 | 86% |
| 5 Dec 2025, 13:23 | 85.8 | 85.8% |
| 17 Nov 2025, 14:16 | 78.3 | 78.3% |
| 29 Oct 2025, 14:35 | 65.6 | 65.6% |
| 17 Sep 2025, 15:18 | 124.9 | 124.9% |
| 29 Aug 2025, 10:13 | 115.6 | 115.6% |
| 7 Jul 2025, 10:16 | 79.4 | 79.4% |
| 11 Jun 2025, 10:11 | 103.7 | 103.7% |
| 19 May 2025, 11:34 | 89.4 | 89.4% |
| 2 Apr 2025, 10:53 | 100.3 | 100.3% |
| 5 Mar 2025, 10:31 | 94.3 | 94.3% |
| 3 Feb 2025, 10:30 | 91.3 | 91.3% |
| 20 Jan 2025, 11:40 | 89.3 | 89.3% |
| 4 Dec 2024, 10:27 | 91.2 | 91.2% |
| 20 Nov 2024, 10:17 | 90.3 | 90.3% |
| 15 Oct 2024, 10:07 | 90.5 | 90.5% |
| 16 Sep 2024, 12:32 | 104.1 | 104.1% |
| 21 Aug 2024, 10:16 | 98.4 | 98.4% |
| 22 Jul 2024, 12:18 | 121 | 121% |
Dissolved oxygen
as O2 · code 9924 · mg/l
7.86 mg/l
Sampled 20 May 2026, 4 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 15:40 | 7.86 | 7.86 mg/l |
| 1 Apr 2026, 10:16 | 9.02 | 9.02 mg/l |
| 2 Mar 2026, 16:43 | 9.73 | 9.73 mg/l |
| 3 Feb 2026, 11:48 | 10.3 | 10.3 mg/l |
| 5 Jan 2026, 15:16 | 12 | 12 mg/l |
| 5 Dec 2025, 13:23 | 10.5 | 10.5 mg/l |
| 17 Nov 2025, 14:16 | 9.33 | 9.33 mg/l |
| 29 Oct 2025, 14:35 | 7.27 | 7.27 mg/l |
| 17 Sep 2025, 15:18 | 12 | 12 mg/l |
| 29 Aug 2025, 10:13 | 11.2 | 11.2 mg/l |
| 7 Jul 2025, 10:16 | 7.67 | 7.67 mg/l |
| 11 Jun 2025, 10:11 | 10.2 | 10.2 mg/l |
| 19 May 2025, 11:34 | 9.01 | 9.01 mg/l |
| 2 Apr 2025, 10:53 | 11.8 | 11.8 mg/l |
| 5 Mar 2025, 10:31 | 12.1 | 12.1 mg/l |
| 3 Feb 2025, 10:30 | 11.8 | 11.8 mg/l |
| 20 Jan 2025, 11:40 | 11.4 | 11.4 mg/l |
| 4 Dec 2024, 10:27 | 11.7 | 11.7 mg/l |
| 20 Nov 2024, 10:17 | 12.7 | 12.7 mg/l |
| 15 Oct 2024, 10:07 | 10.3 | 10.3 mg/l |
| 16 Sep 2024, 12:32 | 10.7 | 10.7 mg/l |
| 21 Aug 2024, 10:16 | 10.1 | 10.1 mg/l |
| 22 Jul 2024, 12:18 | 11.4 | 11.4 mg/l |
Water temperature
code 0076 · °C
14.1 °C
Sampled 20 May 2026, 4 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 15:40 | 14.1 | 14.1 °C |
| 1 Apr 2026, 10:16 | 9.6 | 9.6 °C |
| 2 Mar 2026, 16:43 | 10.2 | 10.2 °C |
| 3 Feb 2026, 11:48 | 5.1 | 5.1 °C |
| 5 Jan 2026, 15:16 | 1.5 | 1.5 °C |
| 5 Dec 2025, 13:23 | 6.6 | 6.6 °C |
| 17 Nov 2025, 14:16 | 7.7 | 7.7 °C |
| 29 Oct 2025, 14:35 | 10.7 | 10.7 °C |
| 17 Sep 2025, 15:18 | 17.3 | 17.3 °C |
| 29 Aug 2025, 10:13 | 16.6 | 16.6 °C |
| 7 Jul 2025, 10:16 | 16.9 | 16.9 °C |
| 11 Jun 2025, 10:11 | 15.9 | 15.9 °C |
| 19 May 2025, 11:34 | 14.9 | 14.9 °C |
| 2 Apr 2025, 10:53 | 8.3 | 8.3 °C |
| 5 Mar 2025, 10:31 | 4.9 | 4.9 °C |
| 3 Feb 2025, 10:30 | 4.5 | 4.5 °C |
| 20 Jan 2025, 11:40 | 4.9 | 4.9 °C |
| 4 Dec 2024, 10:27 | 4.7 | 4.7 °C |
| 20 Nov 2024, 10:17 | 1.3 | 1.3 °C |
| 15 Oct 2024, 10:07 | 9.6 | 9.6 °C |
| 16 Sep 2024, 12:32 | 13.8 | 13.8 °C |
| 21 Aug 2024, 10:16 | 13.9 | 13.9 °C |
| 22 Jul 2024, 12:18 | 18.1 | 18.1 °C |
pH
code 0061
7.49
Sampled 20 May 2026, 4 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 15:40 | 7.49 | 7.49 |
| 1 Apr 2026, 10:16 | 7.55 | 7.55 |
| 2 Mar 2026, 16:43 | 7.6 | 7.6 |
| 3 Feb 2026, 11:48 | 7.72 | 7.72 |
| 5 Jan 2026, 15:16 | 7.79 | 7.79 |
| 5 Dec 2025, 13:23 | 7.63 | 7.63 |
| 17 Nov 2025, 14:16 | 7.4 | 7.4 |
| 29 Oct 2025, 14:35 | 7.31 | 7.31 |
| 17 Sep 2025, 15:18 | 8.15 | 8.15 |
| 29 Aug 2025, 10:13 | 8.13 | 8.13 |
| 7 Jul 2025, 10:16 | 7.95 | 7.95 |
| 11 Jun 2025, 10:11 | 7.99 | 7.99 |
| 19 May 2025, 11:34 | 7.8 | 7.8 |
| 2 Apr 2025, 10:53 | 7.79 | 7.79 |
| 5 Mar 2025, 10:31 | 7.77 | 7.77 |
| 3 Feb 2025, 10:30 | 7.67 | 7.67 |
| 20 Jan 2025, 11:40 | 7.53 | 7.53 |
| 4 Dec 2024, 10:27 | 7.89 | 7.89 |
| 20 Nov 2024, 10:17 | 8.05 | 8.05 |
| 15 Oct 2024, 10:07 | 8.14 | 8.14 |
| 16 Sep 2024, 12:32 | 7.98 | 7.98 |
| 21 Aug 2024, 10:16 | 7.85 | 7.85 |
| 22 Jul 2024, 12:18 | 7.9 | 7.9 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 20 May 2026, 4 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 15:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Apr 2026, 10:16 | 0.078 | 0.078 mg/l |
| 2 Mar 2026, 16:43 | 0.26 | 0.26 mg/l |
| 3 Feb 2026, 11:48 | 0.28 | 0.28 mg/l |
| 5 Jan 2026, 15:16 | 0.56 | 0.56 mg/l |
| 5 Dec 2025, 13:23 | 0.09 | 0.09 mg/l |
| 17 Nov 2025, 14:16 | 0.35 | 0.35 mg/l |
| 29 Oct 2025, 14:35 | 0.19 | 0.19 mg/l |
| 17 Sep 2025, 15:18 | 0.16 | 0.16 mg/l |
| 29 Aug 2025, 10:13 | 0.14 | 0.14 mg/l |
| 7 Jul 2025, 10:16 | 0.034 | 0.034 mg/l |
| 11 Jun 2025, 10:11 | 0.13 | 0.13 mg/l |
| 19 May 2025, 11:34 | 0.28 | 0.28 mg/l |
| 2 Apr 2025, 10:53 | 0.31 | 0.31 mg/l |
| 5 Mar 2025, 10:31 | 0.45 | 0.45 mg/l |
| 3 Feb 2025, 10:30 | 0.3 | 0.3 mg/l |
| 20 Jan 2025, 11:40 | 0.4 | 0.4 mg/l |
| 4 Dec 2024, 10:27 | 0.37 | 0.37 mg/l |
| 20 Nov 2024, 10:17 | 0.37 | 0.37 mg/l |
| 15 Oct 2024, 10:07 | 0.4 | 0.4 mg/l |
| 16 Sep 2024, 12:32 | 0.13 | 0.13 mg/l |
| 21 Aug 2024, 10:16 | 0.13 | 0.13 mg/l |
| 22 Jul 2024, 12:18 | 0.25 | 0.25 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
4.1 mg/l
Sampled 20 May 2026, 4 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 15:40 | 4.1 | 4.1 mg/l |
| 1 Apr 2026, 10:16 | 7.82 | 7.82 mg/l |
| 2 Mar 2026, 16:43 | 9.72 | 9.72 mg/l |
| 3 Feb 2026, 11:48 | 10.9 | 10.9 mg/l |
| 5 Jan 2026, 15:16 | 10.9 | 10.9 mg/l |
| 5 Dec 2025, 13:23 | 13 | 13 mg/l |
| 17 Nov 2025, 14:16 | 15.9 | 15.9 mg/l |
| 29 Oct 2025, 14:35 | 3.28 | 3.28 mg/l |
| 17 Sep 2025, 15:18 | 3.15 | 3.15 mg/l |
| 29 Aug 2025, 10:13 | 7.18 | 7.18 mg/l |
| 7 Jul 2025, 10:16 | 4.63 | 4.63 mg/l |
| 11 Jun 2025, 10:11 | 2.83 | 2.83 mg/l |
| 19 May 2025, 11:34 | 4.57 | 4.57 mg/l |
| 2 Apr 2025, 10:53 | 6.64 | 6.64 mg/l |
| 5 Mar 2025, 10:31 | 9.26 | 9.26 mg/l |
| 3 Feb 2025, 10:30 | 10.9 | 10.9 mg/l |
| 20 Jan 2025, 11:40 | 12 | 12 mg/l |
| 4 Dec 2024, 10:27 | 7.92 | 7.92 mg/l |
| 20 Nov 2024, 10:17 | 5.84 | 5.84 mg/l |
| 15 Oct 2024, 10:07 | 6.83 | 6.83 mg/l |
| 16 Sep 2024, 12:32 | 2.95 | 2.95 mg/l |
| 21 Aug 2024, 10:16 | 2.57 | 2.57 mg/l |
| 22 Jul 2024, 12:18 | 3.46 | 3.46 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.17 mg/l
Sampled 20 May 2026, 4 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 15:40 | 0.17 | 0.17 mg/l |
| 1 Apr 2026, 10:16 | 0.058 | 0.058 mg/l |
| 2 Mar 2026, 16:43 | 0.039 | 0.039 mg/l |
| 3 Feb 2026, 11:48 | 0.2 | 0.2 mg/l |
| 5 Jan 2026, 15:16 | 0.034 | 0.034 mg/l |
| 5 Dec 2025, 13:23 | 0.062 | 0.062 mg/l |
| 17 Nov 2025, 14:16 | 0.13 | 0.13 mg/l |
| 29 Oct 2025, 14:35 | 0.41 | 0.41 mg/l |
| 17 Sep 2025, 15:18 | 1.5 | 1.5 mg/l |
| 29 Aug 2025, 10:13 | 0.79 | 0.79 mg/l |
| 7 Jul 2025, 10:16 | 0.57 | 0.57 mg/l |
| 11 Jun 2025, 10:11 | 0.25 | 0.25 mg/l |
| 19 May 2025, 11:34 | 0.089 | 0.089 mg/l |
| 2 Apr 2025, 10:53 | 0.051 | 0.051 mg/l |
| 5 Mar 2025, 10:31 | 0.028 | 0.028 mg/l |
| 3 Feb 2025, 10:30 | 0.03 | 0.03 mg/l |
| 20 Jan 2025, 11:40 | 0.033 | 0.033 mg/l |
| 4 Dec 2024, 10:27 | 0.056 | 0.056 mg/l |
| 20 Nov 2024, 10:17 | 0.27 | 0.27 mg/l |
| 15 Oct 2024, 10:07 | 0.026 | 0.026 mg/l |
| 16 Sep 2024, 12:32 | 0.054 | 0.054 mg/l |
| 21 Aug 2024, 10:16 | <0.01 | below 0.01 mg/l (not detected above this) |
| 22 Jul 2024, 12:18 | 0.063 | 0.063 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
1283 µS/cm
Sampled 20 May 2026, 4 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 20 May 2026, 15:40 | 1283 | 1283 µS/cm |
| 1 Apr 2026, 10:16 | 1181 | 1181 µS/cm |
| 2 Mar 2026, 16:43 | 1042 | 1042 µS/cm |
| 3 Feb 2026, 11:48 | 1012 | 1012 µS/cm |
| 5 Jan 2026, 15:16 | 1224 | 1224 µS/cm |
| 5 Dec 2025, 13:23 | 585 | 585 µS/cm |
| 17 Nov 2025, 14:16 | 1232 | 1232 µS/cm |
| 29 Oct 2025, 14:35 | 1800 | 1800 µS/cm |
| 17 Sep 2025, 15:18 | 1517 | 1517 µS/cm |
| 29 Aug 2025, 10:13 | 2113 | 2113 µS/cm |
| 7 Jul 2025, 10:16 | 1982 | 1982 µS/cm |
| 11 Jun 2025, 10:11 | 1399 | 1399 µS/cm |
| 19 May 2025, 11:34 | 1408 | 1408 µS/cm |
| 2 Apr 2025, 10:53 | 1223 | 1223 µS/cm |
| 5 Mar 2025, 10:31 | 1102 | 1102 µS/cm |
| 3 Feb 2025, 10:30 | 1060 | 1060 µS/cm |
| 20 Jan 2025, 11:40 | 1080 | 1080 µS/cm |
| 4 Dec 2024, 10:27 | 1250 | 1250 µS/cm |
| 20 Nov 2024, 10:17 | 1587 | 1587 µS/cm |
| 15 Oct 2024, 10:07 | 1424 | 1424 µS/cm |
| 16 Sep 2024, 12:32 | 1695 | 1695 µS/cm |
| 21 Aug 2024, 10:16 | 1263 | 1263 µS/cm |
| 22 Jul 2024, 12:18 | 1618 | 1618 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 | 23 | Jul 2024 – May 2026 | 76.6% 20 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 23 | Jul 2024 – May 2026 | 7.86 mg/l 20 May 2026 |
| Temperature of Water 0076 | River water | 23 | Jul 2024 – May 2026 | 14.1 °C 20 May 2026 |
| pH 0061 | River water | 23 | Jul 2024 – May 2026 | 7.49 20 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 23 | Jul 2024 – May 2026 | below 0.03 mg/l 20 May 2026 |
| Nitrate as N 0117 | River water | 23 | Jul 2024 – May 2026 | 4.1 mg/l 20 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 23 | Jul 2024 – May 2026 | 0.17 mg/l 20 May 2026 |
| Conductivity at 25 C 0077 | River water | 23 | Jul 2024 – May 2026 | 1283 µS/cm 20 May 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 23 | Jul 2024 – May 2026 | 260 mg/l 20 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 23 | Jul 2024 – May 2026 | below 0.00023 mg/l 20 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 21 | Jul 2024 – May 2026 | above 42 mg/l 20 May 2026 |
| Nitrite as N 0118 | River water | 23 | Jul 2024 – May 2026 | below 0.004 mg/l 20 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 23 | Jul 2024 – May 2026 | 4.1 mg/l 20 May 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.