Back St BLW NTN F PS
EA name: BACK ST BLW NTN F PS
Environment Agency sampling point SW-E1383100 · 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, 12:5317 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 19 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)
- Where
- National Grid 320500, 125500As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Back
- River, by the map
- Back StreamPlaced on a river whose name partly matches its own, 17 m from the line.
- Next gauge downstream
- Halsewater On the Halse Water · 0.4 km along the river
- Why it was sampled
- Planned investigation (local monitoring) (19 samples)
Main measurements, river water
E. coli
confirmed, membrane filtration · code 2348 · per 100 ml
1000 per 100 ml
Sampled 14 Sep 2026, 17 days ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 14 Sep 2026, 12:53 | 1000 | 1000 per 100 ml |
| 2 Sep 2026, 11:44 | 2200 | 2200 per 100 ml |
| 27 Aug 2026, 13:47 | 5800 | 5800 per 100 ml |
| 20 Aug 2026, 12:28 | 4300 | 4300 per 100 ml |
| 16 Aug 2026, 12:38 | 3600 | 3600 per 100 ml |
| 10 Aug 2026, 12:56 | 3200 | 3200 per 100 ml |
| 30 Jul 2026, 12:52 | 1400 | 1400 per 100 ml |
| 22 Jul 2026, 14:23 | 2700 | 2700 per 100 ml |
| 13 Jul 2026, 11:40 | 11000 | 11000 per 100 ml |
| 7 Jul 2026, 11:28 | 2100 | 2100 per 100 ml |
| 3 Jul 2026, 11:40 | 1900 | 1900 per 100 ml |
| 25 Jun 2026, 08:57 | 2800 | 2800 per 100 ml |
| 21 Jun 2026, 11:06 | 780 | 780 per 100 ml |
| 17 Jun 2026, 10:41 | 2700 | 2700 per 100 ml |
| 11 Jun 2026, 11:23 | 1800 | 1800 per 100 ml |
| 3 Jun 2026, 10:48 | 910 | 910 per 100 ml |
| 26 May 2026, 11:45 | 1000 | 1000 per 100 ml |
| 18 May 2026, 10:47 | 580 | 580 per 100 ml |
| 15 May 2026, 11:46 | 3400 | 3400 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 | 19 | May 2026 – Sep 2026 | 1000 per 100 ml 14 Sep 2026 |
| Enterococci: Intestinal: Presumptive: MF 3722 | River water | 18 | May 2026 – Sep 2026 | 560 colony forming units / 100ml 14 Sep 2026 |
| MST Filtration 4926 | River water | 19 | May 2026 – Sep 2026 | DNA Stored 14 Sep 2026 |
| Volume of Sample Filtered 4865 | River water | 19 | May 2026 – Sep 2026 | 930 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.