Treesmill Stream at A3082 Bridge

EA name: TREESMILL STREAM AT A3082 BRIDGE
Environment Agency sampling point SW-81610303 · 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, 12:2210 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
Samples banked
50 since 12 Jan 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) · results completed 25 Sep 2026
Where
National Grid 207548, 53581As published, to the nearest 1 m. Open in a map
River, by its own name
Treesmill Stream
River, by the map
Treesmill StreamPlaced on the river its name gives, 0 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) (41 samples)
Monitoring (national agency policy) (6 samples)
Statutory failures (follow ups at non-designated points) (2 samples)

Results here were completed a median of 4 days after the sample was taken (4 to 104 days, 25 samples).

Main measurements, river water

pH

code 0061

7.2

Sampled 27 Mar 2024, 2.5 years ago · 6 results banked

77.057.17.157.2202420252026no sample published after Mar 202412 Jan 2024, 12:20: 7.0523 Jan 2024, 11:22: 7.067 Feb 2024, 11:01: 7.0214 Feb 2024, 10:50: 7.1914 Mar 2024, 11:24: 7.1427 Mar 2024, 11:53: 7.2
Every result (6)
SampledResult as publishedReads as
27 Mar 2024, 11:537.2 7.2
14 Mar 2024, 11:247.14 7.14
14 Feb 2024, 10:507.19 7.19
7 Feb 2024, 11:017.02 7.02
23 Jan 2024, 11:227.06 7.06
12 Jan 2024, 12:207.05 7.05

E. coli

confirmed, membrane filtration · code 2348 · per 100 ml

2400 per 100 ml

Sampled 21 Sep 2026, 10 days ago · 44 results banked

010000200003000040000per 100 ml20242025202625 Sep 2024, 12:20: 5900 per 100 ml30 Sep 2024, 10:04: 7600 per 100 ml1 May 2025, 11:45: 7600 per 100 ml13 May 2025, 12:50: 4300 per 100 ml16 May 2025, 12:25: 2800 per 100 ml25 May 2025, 12:27: 5100 per 100 ml30 May 2025, 12:40: 4100 per 100 ml5 Jun 2025, 11:36: 4400 per 100 ml10 Jun 2025, 12:53: 820 per 100 ml16 Jun 2025, 13:00: 340 per 100 ml25 Jun 2025, 12:39: 36 per 100 ml1 Jul 2025, 12:35: 4200 per 100 ml10 Jul 2025, 14:06: 2500 per 100 ml16 Jul 2025, 13:15: 390 per 100 ml22 Jul 2025, 10:45: 780 per 100 ml28 Jul 2025, 12:46: 2100 per 100 ml6 Aug 2025, 11:45: 4100 per 100 ml13 Aug 2025, 12:35: 5600 per 100 ml18 Aug 2025, 10:40: 54 per 100 ml31 Aug 2025, 12:25: 3500 per 100 ml5 Sep 2025, 13:28: 840 per 100 ml11 Sep 2025, 11:59: 1500 per 100 ml15 Sep 2025, 12:53: 2100 per 100 ml15 May 2026, 12:54: 1100 per 100 ml20 May 2026, 12:35: 3100 per 100 ml26 May 2026, 15:47: 2100 per 100 ml1 Jun 2026, 14:58: 7700 per 100 ml10 Jun 2026, 14:13: 4800 per 100 ml15 Jun 2026, 11:03: 2800 per 100 ml15 Jun 2026, 12:06: 3500 per 100 ml20 Jun 2026, 12:12: 33000 per 100 ml26 Jun 2026, 13:38: 220 per 100 ml6 Jul 2026, 12:55: 10000 per 100 ml14 Jul 2026, 11:35: 8400 per 100 ml19 Jul 2026, 12:04: 2000 per 100 ml27 Jul 2026, 11:45: 4100 per 100 ml5 Aug 2026, 11:54: 4300 per 100 ml14 Aug 2026, 14:55: 5000 per 100 ml20 Aug 2026, 12:26: 2600 per 100 ml26 Aug 2026, 12:15: 5600 per 100 ml1 Sep 2026, 12:21: 1300 per 100 ml9 Sep 2026, 13:29: 15000 per 100 ml17 Sep 2026, 12:53: 6300 per 100 ml21 Sep 2026, 12:22: 2400 per 100 ml
Every result (44)
SampledResult as publishedReads as
21 Sep 2026, 12:222400 2400 per 100 ml
17 Sep 2026, 12:536300 6300 per 100 ml
9 Sep 2026, 13:2915000 15000 per 100 ml
1 Sep 2026, 12:211300 1300 per 100 ml
26 Aug 2026, 12:155600 5600 per 100 ml
20 Aug 2026, 12:262600 2600 per 100 ml
14 Aug 2026, 14:555000 5000 per 100 ml
5 Aug 2026, 11:544300 4300 per 100 ml
27 Jul 2026, 11:454100 4100 per 100 ml
19 Jul 2026, 12:042000 2000 per 100 ml
14 Jul 2026, 11:358400 8400 per 100 ml
6 Jul 2026, 12:5510000 10000 per 100 ml
26 Jun 2026, 13:38220 220 per 100 ml
20 Jun 2026, 12:1233000 33000 per 100 ml
15 Jun 2026, 12:063500 3500 per 100 ml
15 Jun 2026, 11:032800 2800 per 100 ml
10 Jun 2026, 14:134800 4800 per 100 ml
1 Jun 2026, 14:587700 7700 per 100 ml
26 May 2026, 15:472100 2100 per 100 ml
20 May 2026, 12:353100 3100 per 100 ml
15 May 2026, 12:541100 1100 per 100 ml
15 Sep 2025, 12:532100 2100 per 100 ml
11 Sep 2025, 11:591500 1500 per 100 ml
5 Sep 2025, 13:28840 840 per 100 ml
31 Aug 2025, 12:253500 3500 per 100 ml
18 Aug 2025, 10:4054 54 per 100 ml
13 Aug 2025, 12:355600 5600 per 100 ml
6 Aug 2025, 11:454100 4100 per 100 ml
28 Jul 2025, 12:462100 2100 per 100 ml
22 Jul 2025, 10:45780 780 per 100 ml
16 Jul 2025, 13:15390 390 per 100 ml
10 Jul 2025, 14:062500 2500 per 100 ml
1 Jul 2025, 12:354200 4200 per 100 ml
25 Jun 2025, 12:3936 36 per 100 ml
16 Jun 2025, 13:00340 340 per 100 ml
10 Jun 2025, 12:53820 820 per 100 ml
5 Jun 2025, 11:364400 4400 per 100 ml
30 May 2025, 12:404100 4100 per 100 ml
25 May 2025, 12:275100 5100 per 100 ml
16 May 2025, 12:252800 2800 per 100 ml
13 May 2025, 12:504300 4300 per 100 ml
1 May 2025, 11:457600 7600 per 100 ml
30 Sep 2024, 10:047600 7600 per 100 ml
25 Sep 2024, 12:205900 5900 per 100 ml

Everything measured here

26 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 26 rows
DeterminandMaterialResults First – lastLatest result
pH 0061 River water 6 Jan 2024 – Mar 2024 7.2 27 Mar 2024
Escherichia coli : Confirmed : MF 2348 River water 44 Sep 2024 – Sep 2026 2400 per 100 ml 21 Sep 2026
Aluminium, Dissolved 6037 River water 6 Jan 2024 – Mar 2024 15 µg/l 27 Mar 2024
Bacteroides HF183 primer 5886 River water 7 Sep 2024 – Jun 2026 Present / 100ml 20 Jun 2026
Bacteroidetes Marker : Human copy number 3820 River water 7 Sep 2024 – Jun 2026 5.8 log (10) gene copies / 100ml 20 Jun 2026
Bacteroidetes Marker : Ruminant 4906 River water 7 Sep 2024 – Jun 2026 Present 20 Jun 2026
Bacteroidetes Marker : Ruminant copy number 3819 River water 7 Sep 2024 – Jun 2026 3.7 log (10) gene copies / 100ml 20 Jun 2026
Cadmium, Dissolved 0106 River water 6 Jan 2024 – Mar 2024 0.079 µg/l 27 Mar 2024
Calcium, Dissolved 0239 River water 6 Jan 2024 – Mar 2024 23 mg/l 27 Mar 2024
Carbon, Organic, Dissolved as C :- {DOC} 0301 River water 6 Jan 2024 – Mar 2024 2.3 mg/l 27 Mar 2024
Catellicoccus Marker : Seabird 3120 River water 5 Jun 2025 – Jun 2026 Present 20 Jun 2026
Catellicoccus Marker : Seabird Copy Number 3116 River water 5 Jun 2025 – Jun 2026 3.4 log (10) gene copies / 100ml 20 Jun 2026
Chromium, Dissolved 3409 River water 6 Jan 2024 – Mar 2024 below 0.5 µg/l 27 Mar 2024
Copper, Dissolved 6450 River water 6 Jan 2024 – Mar 2024 5.4 µg/l 27 Mar 2024
Enterococci: Intestinal: Confirmed: MF 3723 River water 1 May 2025 – May 2025 1000 colony forming units / 100ml 13 May 2025
Enterococci: Intestinal: Presumptive: MF 3722 River water 44 Sep 2024 – Sep 2026 1100 colony forming units / 100ml 21 Sep 2026
Lead, Dissolved 0052 River water 6 Jan 2024 – Mar 2024 0.1 µg/l 27 Mar 2024
Magnesium, Dissolved 0235 River water 6 Jan 2024 – Mar 2024 7.4 mg/l 27 Mar 2024
Microbial Source Tracking 4876 River water 7 Sep 2024 – Jun 2026 1 text result 20 Jun 2026
Mitochondrial Marker : Canine 4870 River water 5 Jun 2025 – Jun 2026 Not found 20 Jun 2026
Mitochrondrial Marker: Canine copy number 3816 River water 5 Jun 2025 – Jun 2026 below 2 log (10) gene copies / 100ml 20 Jun 2026
MST Filtration 4926 River water 44 Sep 2024 – Sep 2026 DNA Stored 21 Sep 2026
Nickel, Dissolved 3410 River water 6 Jan 2024 – Mar 2024 3 µg/l 27 Mar 2024
Preparation: DNA 5923 River water 7 Sep 2024 – Jun 2026 Done 20 Jun 2026
Volume of Sample Filtered 4865 River water 44 Sep 2024 – Sep 2026 700 millilitre 21 Sep 2026
Zinc, Dissolved 3408 River water 6 Jan 2024 – Mar 2024 48 µg/l 27 Mar 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.

Contains OS data © Crown copyright and database rights 2026.