River Venn downstream of Venn Quarry

EA name: RIVER VENN D/S OF VENN QUARRY (also listed as “RIVER VENN DOWNSTREAM OF VENN QUARRY”)
Environment Agency sampling point SW-73012713 · 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
12 May 2026, 10:505 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
34 since 10 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 258184, 130386As published, to the nearest 1 m. Open in a map
River, by its own name
Venn
River, by the map
Not placedIts name gives Venn; the only line close by, 2 m away, is Landkey Stream and is not traced into it. The river map cannot say which watercourse this is.
Next gauge downstream
Not known
Why it was sampled
Monitoring (national agency policy) (25 samples)
Environmental monitoring statutory (EU directives) (9 samples)

Main measurements, river water

pH

code 0061

8.13

Sampled 12 May 2026, 5 months ago · 34 results banked

7.47.67.888.220242025202610 Oct 2023, 12:28: 7.978 Nov 2023, 13:16: 7.5724 Nov 2023, 13:31: 7.767 Dec 2023, 12:14: 7.7611 Jan 2024, 15:18: 7.91 Feb 2024, 11:13: 7.7911 Mar 2024, 10:37: 7.7410 Apr 2024, 12:32: 7.729 May 2024, 15:56: 8.175 Jun 2024, 12:05: 8.065 Jul 2024, 11:12: 7.872 Aug 2024, 11:05: 7.8923 Sep 2024, 12:01: 7.829 Oct 2024, 11:37: 7.534 Nov 2024, 13:40: 7.835 Dec 2024, 11:59: 7.6815 Jan 2025, 15:25: 7.8110 Feb 2025, 13:06: 7.8725 Feb 2025, 12:34: 7.8731 Mar 2025, 12:17: 8.1522 Apr 2025, 12:18: 8.1112 May 2025, 12:02: 8.073 Jun 2025, 15:35: 7.9518 Jul 2025, 10:01: 8.1722 Aug 2025, 11:13: 7.9812 Sep 2025, 10:08: 7.8523 Oct 2025, 10:54: 7.8319 Nov 2025, 12:15: 7.698 Dec 2025, 14:20: 7.4812 Jan 2026, 12:12: 7.812 Feb 2026, 11:03: 7.735 Mar 2026, 09:59: 7.8327 Apr 2026, 11:15: 8.1312 May 2026, 10:50: 8.13
Every result (34)
SampledResult as publishedReads as
12 May 2026, 10:508.13 8.13
27 Apr 2026, 11:158.13 8.13
5 Mar 2026, 09:597.83 7.83
2 Feb 2026, 11:037.73 7.73
12 Jan 2026, 12:127.81 7.81
8 Dec 2025, 14:207.48 7.48
19 Nov 2025, 12:157.69 7.69
23 Oct 2025, 10:547.83 7.83
12 Sep 2025, 10:087.85 7.85
22 Aug 2025, 11:137.98 7.98
18 Jul 2025, 10:018.17 8.17
3 Jun 2025, 15:357.95 7.95
12 May 2025, 12:028.07 8.07
22 Apr 2025, 12:188.11 8.11
31 Mar 2025, 12:178.15 8.15
25 Feb 2025, 12:347.87 7.87
10 Feb 2025, 13:067.87 7.87
15 Jan 2025, 15:257.81 7.81
5 Dec 2024, 11:597.68 7.68
4 Nov 2024, 13:407.83 7.83
9 Oct 2024, 11:377.53 7.53
23 Sep 2024, 12:017.82 7.82
2 Aug 2024, 11:057.89 7.89
5 Jul 2024, 11:127.87 7.87
5 Jun 2024, 12:058.06 8.06
9 May 2024, 15:568.17 8.17
10 Apr 2024, 12:327.72 7.72
11 Mar 2024, 10:377.74 7.74
1 Feb 2024, 11:137.79 7.79
11 Jan 2024, 15:187.9 7.9
7 Dec 2023, 12:147.76 7.76
24 Nov 2023, 13:317.76 7.76
8 Nov 2023, 13:167.57 7.57
10 Oct 2023, 12:287.97 7.97

Everything measured here

19 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 19 rows
DeterminandMaterialResults First – lastLatest result
pH 0061 River water 34 Oct 2023 – May 2026 8.13 12 May 2026
Arsenic, Dissolved 6045 River water 12 Oct 2023 – Apr 2026 below 1 µg/l 27 Apr 2026
Cadmium, Dissolved 0106 River water 34 Oct 2023 – May 2026 0.14 µg/l 12 May 2026
Calcium 0241 River water 12 Oct 2023 – Apr 2026 35 mg/l 27 Apr 2026
Calcium, Dissolved 0239 River water 34 Oct 2023 – May 2026 77 mg/l 12 May 2026
Carbon, Organic, Dissolved as C :- {DOC} 0301 River water 34 Oct 2023 – May 2026 1.3 mg/l 12 May 2026
Copper : BLM Bioavailable 4821 River water 12 Oct 2023 – Apr 2026 0.23 µg/l 27 Apr 2026
Copper, Dissolved 6450 River water 12 Oct 2023 – Apr 2026 0.7 µg/l 27 Apr 2026
Hardness, Total as CaCO3 0158 River water 12 Oct 2023 – Apr 2026 115 mg/l 27 Apr 2026
Iron, Dissolved 6460 River water 12 Oct 2023 – Apr 2026 81 µg/l 27 Apr 2026
Lead : BLM Bioavailable 3377 River water 34 Oct 2023 – May 2026 0.04 µg/l 12 May 2026
Lead, Dissolved 0052 River water 34 Oct 2023 – May 2026 below 0.1 µg/l 12 May 2026
Magnesium 0237 River water 12 Oct 2023 – Apr 2026 6.7 mg/l 27 Apr 2026
Magnesium, Dissolved 0235 River water 34 Oct 2023 – May 2026 27 mg/l 12 May 2026
Nickel : BLM Bioavailable 3878 River water 34 Oct 2023 – May 2026 10 µg/l 12 May 2026
Nickel, Dissolved 3410 River water 34 Oct 2023 – May 2026 18 µg/l 12 May 2026
Zinc 6455 River water 12 Oct 2023 – Apr 2026 5 µg/l 27 Apr 2026
Zinc : BLM Bioavailable 4822 River water 2 Apr 2026 – May 2026 11 µg/l 12 May 2026
Zinc, Dissolved 3408 River water 13 Oct 2023 – May 2026 17 µg/l 12 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.