Prittle Brook upstream of Tunnel

EA name: PRITTLE BROOK UPSTREAM OF TUNNEL
Environment Agency sampling point TH-PTNR0099 · 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: 18 Sep 2026, 14:3513 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
Samples banked: 20 since 14 May 2024 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
Latest sample: Surface drainage Planned investigation (local monitoring) · results completed 23 Sep 2026
Where: National Grid 583513, 186896As published, to the nearest 1 m. Open in a map
River, by its own name: Prittle Brook
River, by the map: Prittle BrookPlaced on the river its name gives, 8 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) (20 samples)

Results here were completed a median of 5 days after the sample was taken (5 to 5 days, 6 samples).

Main measurements, river water

E. coli

confirmed, membrane filtration · code 2348 · per 100 ml

5500 per 100 ml

Sampled 25 Sep 2024, 2 years ago · 10 results banked

Also measured in number per hundred millilitres on another sample material (2CZZ): 10 results, kept apart (see the table).

Every result (10)

Sampled	Result as published	Reads as
25 Sep 2024, 13:27	5500	5500 per 100 ml
12 Sep 2024, 10:10	3200	3200 per 100 ml
28 Aug 2024, 10:38	5900	5900 per 100 ml
14 Aug 2024, 10:30	6700	6700 per 100 ml
29 Jul 2024, 10:24	2400	2400 per 100 ml
15 Jul 2024, 10:46	3500	3500 per 100 ml
28 Jun 2024, 14:21	2800	2800 per 100 ml
13 Jun 2024, 14:18	2600	2600 per 100 ml
31 May 2024, 10:12	5200	5200 per 100 ml
14 May 2024, 14:28	28000	28000 per 100 ml

Everything measured here

7 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 12 rows

Determinand	Material	Results	First – last	Latest result
Escherichia coli : Confirmed : MF 2348	River water	10	May 2024 – Sep 2024	5500 per 100 ml 25 Sep 2024
Escherichia coli : Confirmed : MF 2348	Surface drainage	10	May 2025 – Sep 2026	11000 per 100 ml 18 Sep 2026
Enterococci: Intestinal: Confirmed: MF 3723	River water	10	May 2024 – Sep 2024	4100 colony forming units / 100ml 25 Sep 2024
Enterococci: Intestinal: Presumptive: MF 3722	River water	10	May 2024 – Sep 2024	4500 colony forming units / 100ml 25 Sep 2024
MST Filtration 4926	River water	10	May 2024 – Sep 2024	DNA Stored 25 Sep 2024
Volume of Sample Filtered 4865	River water	10	May 2024 – Sep 2024	950 millilitre 25 Sep 2024
Enterococci: Intestinal: Confirmed: MF 3723	Surface drainage	10	May 2025 – Sep 2026	4900 colony forming units / 100ml 18 Sep 2026
Enterococci: Intestinal: Presumptive: MF 3722	Surface drainage	10	May 2025 – Sep 2026	4900 colony forming units / 100ml 18 Sep 2026
MST Filtration 4926	Surface drainage	10	May 2025 – Sep 2026	DNA Stored 18 Sep 2026
Number of birds 6360	Surface drainage	3	Jul 2025 – Sep 2025	0 unitless value 16 Sep 2025
Number of dogs 8288	Surface drainage	3	Jul 2025 – Sep 2025	0 number 16 Sep 2025
Volume of Sample Filtered 4865	Surface drainage	10	May 2025 – Sep 2026	920 millilitre 18 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.