Polmear Stream upstream Pond Inflow

EA name: POLMEAR STREAM UPSTREAM POND INFLOW
Environment Agency sampling point SW-81610605 · 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: 21 Sep 2026, 11:5210 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
Samples banked: 22 since 15 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) · results completed 25 Sep 2026
Where: National Grid 208754, 53410As published, to the nearest 1 m. Open in a map
River, by its own name: Polmear Stream
River, by the map: Polmear StreamPlaced on the river its name gives, 1 m from the line.
Next gauge downstream: None tracedIts water reaches the sea without passing a gauge.
Why it was sampled: Planned investigation (local monitoring) (22 samples)

Results here were completed a median of 4 days after the sample was taken (4 to 10 days, 22 samples).

Main measurements, river water

E. coli

confirmed, membrane filtration · code 2348 · per 100 ml

590 per 100 ml

Sampled 21 Sep 2026, 10 days ago · 22 results banked

Every result (22)

Sampled	Result as published	Reads as
21 Sep 2026, 11:52	590	590 per 100 ml
17 Sep 2026, 13:00	5800	5800 per 100 ml
9 Sep 2026, 13:01	3100	3100 per 100 ml
1 Sep 2026, 11:50	710	710 per 100 ml
26 Aug 2026, 12:00	2100	2100 per 100 ml
20 Aug 2026, 12:16	960	960 per 100 ml
14 Aug 2026, 14:47	2400	2400 per 100 ml
14 Aug 2026, 14:45	2000	2000 per 100 ml
5 Aug 2026, 11:43	460	460 per 100 ml
27 Jul 2026, 11:35	620	620 per 100 ml
19 Jul 2026, 11:32	670	670 per 100 ml
14 Jul 2026, 12:20	1700	1700 per 100 ml
6 Jul 2026, 13:04	860	860 per 100 ml
26 Jun 2026, 13:46	850	850 per 100 ml
20 Jun 2026, 11:47	2600	2600 per 100 ml
15 Jun 2026, 11:14	230	230 per 100 ml
15 Jun 2026, 10:35	440	440 per 100 ml
10 Jun 2026, 13:07	180	180 per 100 ml
1 Jun 2026, 14:45	1100	1100 per 100 ml
26 May 2026, 13:09	1000	1000 per 100 ml
20 May 2026, 12:06	440	440 per 100 ml
15 May 2026, 13:07	140	140 per 100 ml

Everything measured here

4 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 4 rows

Determinand	Material	Results	First – last	Latest result
Escherichia coli : Confirmed : MF 2348	River water	22	May 2026 – Sep 2026	590 per 100 ml 21 Sep 2026
Enterococci: Intestinal: Presumptive: MF 3722	River water	22	May 2026 – Sep 2026	590 colony forming units / 100ml 21 Sep 2026
MST Filtration 4926	River water	22	May 2026 – Sep 2026	DNA Stored 21 Sep 2026
Volume of Sample Filtered 4865	River water	22	May 2026 – Sep 2026	930 millilitre 21 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.