River Coly at Heathayne Farm

EA name: RIVER COLY AT HEATHAYNE FARM
Environment Agency sampling point SW-70220527 · 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: 16 Sep 2026, 11:5515 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
Samples banked: 39 since 1 May 2025 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 323561, 94314As published, to the nearest 1 m. Open in a map
River, by its own name: Coly
River, by the map: River ColyPlaced on the river its name gives, 16 m from the line.
Next gauge downstream: Colyton Station Road On the River Coly · 1.5 km along the river
Nearest gauge upstream: Bonehayne On the River Coly · 2.2 km along the river
Why it was sampled: Planned investigation (local monitoring) (39 samples)

Main measurements, river water

E. coli

confirmed, membrane filtration · code 2348 · per 100 ml

670 per 100 ml

Sampled 16 Sep 2026, 15 days ago · 38 results banked

Every result (38)

Sampled	Result as published	Reads as
16 Sep 2026, 11:55	670	670 per 100 ml
8 Sep 2026, 12:07	59000	59000 per 100 ml
2 Sep 2026, 11:05	780	780 per 100 ml
20 Aug 2026, 11:54	4800	4800 per 100 ml
10 Aug 2026, 11:50	2100	2100 per 100 ml
5 Aug 2026, 14:06	1200	1200 per 100 ml
30 Jul 2026, 11:20	800	800 per 100 ml
20 Jul 2026, 11:10	720	720 per 100 ml
15 Jul 2026, 12:11	670	670 per 100 ml
11 Jul 2026, 11:56	3600	3600 per 100 ml
2 Jul 2026, 12:39	910	910 per 100 ml
21 Jun 2026, 11:23	980	980 per 100 ml
15 Jun 2026, 11:15	2000	2000 per 100 ml
10 Jun 2026, 14:46	690	690 per 100 ml
3 Jun 2026, 11:16	3700	3700 per 100 ml
27 May 2026, 12:44	2000	2000 per 100 ml
20 May 2026, 11:38	1300	1300 per 100 ml
15 May 2026, 13:09	400	400 per 100 ml
18 Sep 2025, 13:26	490	490 per 100 ml
11 Sep 2025, 12:18	2900	2900 per 100 ml
6 Sep 2025, 10:02	390	390 per 100 ml
2 Sep 2025, 12:39	5900	5900 per 100 ml
26 Aug 2025, 11:01	770	770 per 100 ml
11 Aug 2025, 13:29	780	780 per 100 ml
30 Jul 2025, 11:27	2100	2100 per 100 ml
24 Jul 2025, 12:23	2700	2700 per 100 ml
16 Jul 2025, 10:03	540	540 per 100 ml
10 Jul 2025, 11:20	410	410 per 100 ml
2 Jul 2025, 09:49	740	740 per 100 ml
25 Jun 2025, 13:14	1200	1200 per 100 ml
19 Jun 2025, 10:13	840	840 per 100 ml
11 Jun 2025, 10:35	680	680 per 100 ml
7 Jun 2025, 14:56	3000	3000 per 100 ml
2 Jun 2025, 12:44	1000	1000 per 100 ml
29 May 2025, 10:16	1700	1700 per 100 ml
22 May 2025, 14:01	1100	1100 per 100 ml
15 May 2025, 11:38	510	510 per 100 ml
1 May 2025, 10:06	2300	2300 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	38	May 2025 – Sep 2026	670 per 100 ml 16 Sep 2026
Enterococci: Intestinal: Presumptive: MF 3722	River water	37	May 2025 – Sep 2026	180 colony forming units / 100ml 16 Sep 2026
MST Filtration 4926	River water	38	May 2025 – Sep 2026	DNA Stored 16 Sep 2026
Salinity : In Situ 7608	River water	39	May 2025 – Sep 2026	0.22 parts per thousand 16 Sep 2026
Volume of Sample Filtered 4865	River water	38	May 2025 – Sep 2026	910 millilitre 16 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.