Leas Foot Stream at Thurlestone

EA name: LEAS FOOT STREAM AT THURLESTONE (also listed as “THURLESTONE - STREAM B”)
Environment Agency sampling point SW-70815303 · 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: 13 Sep 2026, 12:4118 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
Samples banked: 33 since 7 May 2024 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 267305, 42151As published, to the nearest 1 m. Open in a map
River, by its own name: Leas Foot Stream
River, by the map: An unnamed streamPlaced by position alone (the only river line close by), 7 m from the line. A tidal reach: water runs both ways, so no gauge order is claimed.
Next gauge downstream: Not known
Why it was sampled: Planned investigation (local monitoring) (33 samples)

Main measurements, river water

E. coli

confirmed, membrane filtration · code 2348 · per 100 ml

1200 per 100 ml

Sampled 13 Sep 2026, 18 days ago · 33 results banked

Every result (33)

Sampled	Result as published	Reads as
13 Sep 2026, 12:41	1200	1200 per 100 ml
2 Sep 2026, 12:48	580	580 per 100 ml
26 Aug 2026, 12:13	670	670 per 100 ml
19 Aug 2026, 14:25	5200	5200 per 100 ml
12 Aug 2026, 11:55	1900	1900 per 100 ml
29 Jul 2026, 15:01	620	620 per 100 ml
6 Jul 2026, 15:24	<10	below 10 per 100 ml (not detected above this)
2 Jul 2026, 10:41	770	770 per 100 ml
24 Jun 2026, 13:05	8300	8300 per 100 ml
16 Jun 2026, 11:54	590	590 per 100 ml
20 Sep 2025, 13:04	310	310 per 100 ml
26 Aug 2025, 11:48	1200	1200 per 100 ml
6 Aug 2025, 12:21	610	610 per 100 ml
7 Jul 2025, 10:57	820	820 per 100 ml
14 Jun 2025, 11:18	3700	3700 per 100 ml
9 Jun 2025, 11:09	290	290 per 100 ml
19 May 2025, 12:27	340	340 per 100 ml
7 May 2025, 11:23	170	170 per 100 ml
19 Sep 2024, 12:40	340	340 per 100 ml
12 Sep 2024, 11:38	230	230 per 100 ml
28 Aug 2024, 10:32	830	830 per 100 ml
21 Aug 2024, 11:05	520	520 per 100 ml
3 Aug 2024, 14:23	440	440 per 100 ml
17 Jul 2024, 12:30	1000	1000 per 100 ml
8 Jul 2024, 11:53	440	440 per 100 ml
6 Jul 2024, 13:20	780	780 per 100 ml
25 Jun 2024, 12:23	830	830 per 100 ml
20 Jun 2024, 13:54	320	320 per 100 ml
11 Jun 2024, 14:56	380	380 per 100 ml
6 Jun 2024, 11:16	1300	1300 per 100 ml
23 May 2024, 11:52	370	370 per 100 ml
15 May 2024, 14:17	280	280 per 100 ml
7 May 2024, 11:38	490	490 per 100 ml

Everything measured here

5 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 5 rows

Determinand	Material	Results	First – last	Latest result
Escherichia coli : Confirmed : MF 2348	River water	33	May 2024 – Sep 2026	1200 per 100 ml 13 Sep 2026
Enterococci: Intestinal: Presumptive: MF 3722	River water	32	May 2024 – Sep 2026	890 colony forming units / 100ml 13 Sep 2026
MST Filtration 4926	River water	15	May 2024 – Sep 2024	DNA Stored 19 Sep 2024
Salinity : In Situ 7608	River water	33	May 2024 – Sep 2026	0.63 parts per thousand 13 Sep 2026
Volume of Sample Filtered 4865	River water	15	May 2024 – Sep 2024	910 millilitre 19 Sep 2024

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.