Perranporth Stream at Car Park Footbridge

EA name: PERRANPORTH STREAM @ CAR PARK FOOTBRIDGE (also listed as “PERRANPORTH STREAM AT CAR PARK FOOTBRIDGE”)
Environment Agency sampling point SW-82311802 · 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
14 Sep 2026, 10:5517 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
Samples banked
21 since 18 May 2026 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
Latest sample
River / running surface water Planned investigation (local monitoring)
Where
National Grid 175713, 54337As published, to the nearest 1 m. Open in a map
River, by its own name
Perranporth Stream
River, by the map
Not placedIts name gives Perranporth Stream; the only line close by, 2 m away, is Perrancoombe 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
Planned investigation (local monitoring) (19 samples)
Unplanned reactive monitoring (pollution incidents) (1 samples)
Statutory failures (follow ups at non-designated points) (1 samples)

Main measurements, river water

E. coli

confirmed, membrane filtration · code 2348 · per 100 ml

1700 per 100 ml

Sampled 14 Sep 2026, 17 days ago · 20 results banked

02000400060008000per 100 ml20242025202618 May 2026, 11:20: 7000 per 100 ml22 May 2026, 12:00: 920 per 100 ml23 May 2026, 11:02: 970 per 100 ml28 May 2026, 13:00: 3300 per 100 ml11 Jun 2026, 12:10: 1900 per 100 ml16 Jun 2026, 10:50: 1700 per 100 ml24 Jun 2026, 11:38: 2300 per 100 ml2 Jul 2026, 15:13: 1200 per 100 ml5 Jul 2026, 10:55: 6000 per 100 ml14 Jul 2026, 10:40: 1700 per 100 ml15 Jul 2026, 12:25: 1800 per 100 ml22 Jul 2026, 13:57: 710 per 100 ml31 Jul 2026, 13:05: 1100 per 100 ml7 Aug 2026, 10:57: 1800 per 100 ml11 Aug 2026, 11:48: 760 per 100 ml21 Aug 2026, 11:38: 2900 per 100 ml25 Aug 2026, 11:16: 2100 per 100 ml1 Sep 2026, 13:31: 740 per 100 ml11 Sep 2026, 11:08: 1200 per 100 ml14 Sep 2026, 10:55: 1700 per 100 ml
Every result (20)
SampledResult as publishedReads as
14 Sep 2026, 10:551700 1700 per 100 ml
11 Sep 2026, 11:081200 1200 per 100 ml
1 Sep 2026, 13:31740 740 per 100 ml
25 Aug 2026, 11:162100 2100 per 100 ml
21 Aug 2026, 11:382900 2900 per 100 ml
11 Aug 2026, 11:48760 760 per 100 ml
7 Aug 2026, 10:571800 1800 per 100 ml
31 Jul 2026, 13:051100 1100 per 100 ml
22 Jul 2026, 13:57710 710 per 100 ml
15 Jul 2026, 12:251800 1800 per 100 ml
14 Jul 2026, 10:401700 1700 per 100 ml
5 Jul 2026, 10:556000 6000 per 100 ml
2 Jul 2026, 15:131200 1200 per 100 ml
24 Jun 2026, 11:382300 2300 per 100 ml
16 Jun 2026, 10:501700 1700 per 100 ml
11 Jun 2026, 12:101900 1900 per 100 ml
28 May 2026, 13:003300 3300 per 100 ml
23 May 2026, 11:02970 970 per 100 ml
22 May 2026, 12:00920 920 per 100 ml
18 May 2026, 11:207000 7000 per 100 ml

Everything measured here

18 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 18 rows
DeterminandMaterialResults First – lastLatest result
Escherichia coli : Confirmed : MF 2348 River water 20 May 2026 – Sep 2026 1700 per 100 ml 14 Sep 2026
Bacteroides HF183 primer 5886 River water 2 May 2026 – Jul 2026 Present / 100ml 5 Jul 2026
Bacteroidetes Marker : Horse 3122 River water 1 May 2026 – May 2026 Not found 18 May 2026
Bacteroidetes Marker : Horse Copy Number 3123 River water 1 May 2026 – May 2026 below 2 log (10) gene copies / 100ml 18 May 2026
Bacteroidetes Marker : Human copy number 3820 River water 2 May 2026 – Jul 2026 3.7 log (10) gene copies / 100ml 5 Jul 2026
Bacteroidetes Marker : Ruminant 4906 River water 2 May 2026 – Jul 2026 Present 5 Jul 2026
Bacteroidetes Marker : Ruminant copy number 3819 River water 2 May 2026 – Jul 2026 2.5 log (10) gene copies / 100ml 5 Jul 2026
Catellicoccus Marker : Seabird 3120 River water 2 May 2026 – Jul 2026 Present 5 Jul 2026
Catellicoccus Marker : Seabird Copy Number 3116 River water 2 May 2026 – Jul 2026 4.8 log (10) gene copies / 100ml 5 Jul 2026
Enterococci: Intestinal: Presumptive: MF 3722 River water 20 May 2026 – Sep 2026 2500 colony forming units / 100ml 14 Sep 2026
Microbial Source Tracking 4876 River water 2 May 2026 – Jul 2026 1 text result 5 Jul 2026
Mitochondrial Marker : Avian 4871 River water 1 May 2026 – May 2026 Not found 18 May 2026
Mitochondrial Marker : Avian copy number 3817 River water 1 May 2026 – May 2026 below 2 log (10) gene copies / 100ml 18 May 2026
Mitochondrial Marker : Canine 4870 River water 2 May 2026 – Jul 2026 Present 5 Jul 2026
Mitochrondrial Marker: Canine copy number 3816 River water 2 May 2026 – Jul 2026 3.5 log (10) gene copies / 100ml 5 Jul 2026
MST Filtration 4926 River water 21 May 2026 – Sep 2026 DNA Stored 14 Sep 2026
Preparation: DNA 5923 River water 2 May 2026 – Jul 2026 Done 5 Jul 2026
Volume of Sample Filtered 4865 River water 21 May 2026 – Sep 2026 810 millilitre 14 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.