River Wid Shenfield sewage treatment works Access Bridge

EA name: R.WID SHENFIELD STW ACCESS BRIDGE
Environment Agency sampling point AN-WD0503 · 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
7 Sep 2026, 11:1531 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
Samples banked
6 since 8 Apr 2026 Imported periods: 1 Oct 2023 – 8 Oct 2026. Samples outside them are not shown here.
Latest sample
River / running surface water Environmental monitoring statutory (EU directives) · results completed 11 Sep 2026
Where
National Grid 565300, 195990As published, to the nearest 10 m. Open in a map
River, by its own name
Wid
River, by the map
River WidPlaced on the river its name gives, 1 m from the line.
Next gauge downstream
Wardropers On the River Wid · 1.2 km along the river
Nearest gauge upstream
Mountnessing On the River Wid · 4.2 km along the river
Why it was sampled
Environmental monitoring statutory (EU directives) (6 samples)

Results here were completed a median of 4 days after the sample was taken (3 to 4 days, 4 samples).

Main measurements, river water

Dissolved oxygen

% saturation · code 9901 · %

68.9%

Sampled 7 Sep 2026, 31 days ago · 6 results banked

60708090100%2024202520268 Apr 2026, 12:13: 97.4%1 May 2026, 11:29: 81.2%12 Jun 2026, 11:37: 74.2%1 Jul 2026, 13:14: 67.2%4 Aug 2026, 14:06: 71.9%7 Sep 2026, 11:15: 68.9%
Every result (6)
SampledResult as publishedReads as
7 Sep 2026, 11:1568.9 68.9%
4 Aug 2026, 14:0671.9 71.9%
1 Jul 2026, 13:1467.2 67.2%
12 Jun 2026, 11:3774.2 74.2%
1 May 2026, 11:2981.2 81.2%
8 Apr 2026, 12:1397.4 97.4%

Dissolved oxygen

as O2 · code 9924 · mg/l

6.12 mg/l

Sampled 7 Sep 2026, 31 days ago · 6 results banked

678910mg/l2024202520268 Apr 2026, 12:13: 9.86 mg/l1 May 2026, 11:29: 8.01 mg/l12 Jun 2026, 11:37: 7.17 mg/l1 Jul 2026, 13:14: 6 mg/l4 Aug 2026, 14:06: 6.13 mg/l7 Sep 2026, 11:15: 6.12 mg/l
Every result (6)
SampledResult as publishedReads as
7 Sep 2026, 11:156.12 6.12 mg/l
4 Aug 2026, 14:066.13 6.13 mg/l
1 Jul 2026, 13:146 6 mg/l
12 Jun 2026, 11:377.17 7.17 mg/l
1 May 2026, 11:298.01 8.01 mg/l
8 Apr 2026, 12:139.86 9.86 mg/l

Water temperature

code 0076 · °C

21.1 °C

Sampled 7 Sep 2026, 31 days ago · 6 results banked

12.51517.52022.525°C2024202520268 Apr 2026, 12:13: 14.7 °C1 May 2026, 11:29: 15.9 °C12 Jun 2026, 11:37: 16.9 °C1 Jul 2026, 13:14: 20.8 °C4 Aug 2026, 14:06: 23.2 °C7 Sep 2026, 11:15: 21.1 °C
Every result (6)
SampledResult as publishedReads as
7 Sep 2026, 11:1521.1 21.1 °C
4 Aug 2026, 14:0623.2 23.2 °C
1 Jul 2026, 13:1420.8 20.8 °C
12 Jun 2026, 11:3716.9 16.9 °C
1 May 2026, 11:2915.9 15.9 °C
8 Apr 2026, 12:1314.7 14.7 °C

pH

code 0061

7.39

Sampled 7 Sep 2026, 31 days ago · 6 results banked

7.27.47.67.82024202520268 Apr 2026, 12:13: 7.661 May 2026, 11:29: 7.4212 Jun 2026, 11:37: 7.651 Jul 2026, 13:14: 7.444 Aug 2026, 14:06: 7.237 Sep 2026, 11:15: 7.39
Every result (6)
SampledResult as publishedReads as
7 Sep 2026, 11:157.39 7.39
4 Aug 2026, 14:067.23 7.23
1 Jul 2026, 13:147.44 7.44
12 Jun 2026, 11:377.65 7.65
1 May 2026, 11:297.42 7.42
8 Apr 2026, 12:137.66 7.66

Ammonia

ammoniacal nitrogen as N · code 0111 · mg/l

0.087 mg/l

Sampled 7 Sep 2026, 31 days ago · 6 results banked

0.0750.10.1250.150.1750.2mg/l2024202520268 Apr 2026, 12:13: 0.1 mg/l1 May 2026, 11:29: 0.15 mg/l12 Jun 2026, 11:37: 0.089 mg/l1 Jul 2026, 13:14: 0.12 mg/l4 Aug 2026, 14:06: 0.18 mg/l7 Sep 2026, 11:15: 0.087 mg/l
Every result (6)
SampledResult as publishedReads as
7 Sep 2026, 11:150.087 0.087 mg/l
4 Aug 2026, 14:060.18 0.18 mg/l
1 Jul 2026, 13:140.12 0.12 mg/l
12 Jun 2026, 11:370.089 0.089 mg/l
1 May 2026, 11:290.15 0.15 mg/l
8 Apr 2026, 12:130.1 0.1 mg/l

Nitrate

as nitrogen (N) · code 0117 · mg/l

1.88 mg/l

Sampled 7 Sep 2026, 31 days ago · 6 results banked

0510152025mg/l2024202520268 Apr 2026, 12:13: 17.9 mg/l1 May 2026, 11:29: 14.9 mg/l12 Jun 2026, 11:37: 15 mg/l1 Jul 2026, 13:14: 13 mg/l4 Aug 2026, 14:06: 20.9 mg/l7 Sep 2026, 11:15: 1.88 mg/l
Every result (6)
SampledResult as publishedReads as
7 Sep 2026, 11:151.88 1.88 mg/l
4 Aug 2026, 14:0620.9 20.9 mg/l
1 Jul 2026, 13:1413 13 mg/l
12 Jun 2026, 11:3715 15 mg/l
1 May 2026, 11:2914.9 14.9 mg/l
8 Apr 2026, 12:1317.9 17.9 mg/l

Phosphate

orthophosphate, reactive, as P · code 0180 · mg/l

0.43 mg/l

Sampled 7 Sep 2026, 31 days ago · 6 results banked

0.40.60.81mg/l2024202520268 Apr 2026, 12:13: 0.53 mg/l1 May 2026, 11:29: 0.84 mg/l12 Jun 2026, 11:37: 0.51 mg/l1 Jul 2026, 13:14: 0.64 mg/l4 Aug 2026, 14:06: 0.7 mg/l7 Sep 2026, 11:15: 0.43 mg/l
Every result (6)
SampledResult as publishedReads as
7 Sep 2026, 11:150.43 0.43 mg/l
4 Aug 2026, 14:060.7 0.7 mg/l
1 Jul 2026, 13:140.64 0.64 mg/l
12 Jun 2026, 11:370.51 0.51 mg/l
1 May 2026, 11:290.84 0.84 mg/l
8 Apr 2026, 12:130.53 0.53 mg/l

Conductivity

at 25 °C · code 0077 · µS/cm

1050 µS/cm

Sampled 7 Sep 2026, 31 days ago · 6 results banked

800900100011001200µS/cm2024202520268 Apr 2026, 12:13: 1085 µS/cm1 May 2026, 11:29: 1140 µS/cm12 Jun 2026, 11:37: 843 µS/cm1 Jul 2026, 13:14: 1132 µS/cm4 Aug 2026, 14:06: 1152 µS/cm7 Sep 2026, 11:15: 1050 µS/cm
Every result (6)
SampledResult as publishedReads as
7 Sep 2026, 11:151050 1050 µS/cm
4 Aug 2026, 14:061152 1152 µS/cm
1 Jul 2026, 13:141132 1132 µS/cm
12 Jun 2026, 11:37843 843 µS/cm
1 May 2026, 11:291140 1140 µS/cm
8 Apr 2026, 12:131085 1085 µS/cm

Everything measured here

12 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 12 rows
DeterminandMaterialResults First – lastLatest result
Oxygen, Dissolved, % Saturation 9901 River water 6 Apr 2026 – Sep 2026 68.9% 7 Sep 2026
Oxygen, Dissolved as O2 9924 River water 6 Apr 2026 – Sep 2026 6.12 mg/l 7 Sep 2026
Temperature of Water 0076 River water 6 Apr 2026 – Sep 2026 21.1 °C 7 Sep 2026
pH 0061 River water 6 Apr 2026 – Sep 2026 7.39 7 Sep 2026
Ammoniacal Nitrogen as N 0111 River water 6 Apr 2026 – Sep 2026 0.087 mg/l 7 Sep 2026
Nitrate as N 0117 River water 6 Apr 2026 – Sep 2026 1.88 mg/l 7 Sep 2026
Orthophosphate, reactive as P 0180 River water 6 Apr 2026 – Sep 2026 0.43 mg/l 7 Sep 2026
Conductivity at 25 C 0077 River water 6 Apr 2026 – Sep 2026 1050 µS/cm 7 Sep 2026
Alkalinity to pH 4.5 as CaCO3 0162 River water 6 Apr 2026 – Sep 2026 120 mg/l 7 Sep 2026
Ammonia un-ionised as N 0119 River water 6 Apr 2026 – Sep 2026 0.0009 mg/l 7 Sep 2026
Nitrite as N 0118 River water 6 Apr 2026 – Sep 2026 0.021 mg/l 7 Sep 2026
Nitrogen, Total Oxidised as N 0116 River water 6 Apr 2026 – Sep 2026 1.9 mg/l 7 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.