Weaver upstream of Bulkeley waste water treatment works
EA name: WEAVER U/S BULKELEY WWTW
Environment Agency sampling point NW-88024629 · 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
- 22 May 2026, 11:124 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone). Not sampled since, as far as the archive shows: the Environment Agency was asked up to 30 Sep 2026 and had nothing newer.
- Samples banked
- 30 since 24 Oct 2023 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Monitoring (national agency policy)
- Where
- National Grid 353987, 355294As published, to the nearest 1 m. Open in a map
- River, by its own name
- Weaver
- River, by the map
- Not placedNo mapped watercourse within 500 m. The river map cannot say which watercourse this is.
- Next gauge downstream
- Not known
- Why it was sampled
- Monitoring (national agency policy) (19 samples)
Environmental monitoring statutory (EU directives) (11 samples)
1 visit found no water to sample (recorded as “No flow”).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
138%
Sampled 22 May 2026, 4 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 May 2026, 11:12 | 138 | 138% |
| 10 Mar 2026, 10:02 | 75.1 | 75.1% |
| 4 Feb 2026, 12:18 | 62.4 | 62.4% |
| 9 Jan 2026, 09:38 | 46.4 | 46.4% |
| 2 Dec 2025, 12:56 | 49.6 | 49.6% |
| 7 Nov 2025, 11:14 | 13 | 13% |
| 9 Oct 2025, 12:08 | 41 | 41% |
| 11 Sep 2025, 13:46 | 19.4 | 19.4% |
| 12 Aug 2025, 12:38 | 10 | 10% |
| 11 Jul 2025, 13:15 | 59.9 | 59.9% |
| 2 May 2025, 10:28 | 83.6 | 83.6% |
| 2 Apr 2025, 12:27 | 113 | 113% |
| 19 Mar 2024, 13:11 | 96.7 | 96.7% |
| 20 Feb 2024, 11:39 | 71.2 | 71.2% |
| 15 Jan 2024, 11:08 | 49.6 | 49.6% |
| 12 Dec 2023, 13:11 | 49.2 | 49.2% |
| 21 Nov 2023, 11:10 | 58.7 | 58.7% |
| 24 Oct 2023, 10:13 | 18.3 | 18.3% |
Dissolved oxygen
as O2 · code 9924 · mg/l
13.3 mg/l
Sampled 22 May 2026, 4 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 May 2026, 11:12 | 13.3 | 13.3 mg/l |
| 10 Mar 2026, 10:02 | 8.99 | 8.99 mg/l |
| 4 Feb 2026, 12:18 | 7.98 | 7.98 mg/l |
| 9 Jan 2026, 09:38 | 6.19 | 6.19 mg/l |
| 2 Dec 2025, 12:56 | 5.97 | 5.97 mg/l |
| 7 Nov 2025, 11:14 | 1.41 | 1.41 mg/l |
| 9 Oct 2025, 12:08 | 4.38 | 4.38 mg/l |
| 11 Sep 2025, 13:46 | 2.01 | 2.01 mg/l |
| 12 Aug 2025, 12:38 | 0.952 | 0.952 mg/l |
| 11 Jul 2025, 13:15 | 5.64 | 5.64 mg/l |
| 2 May 2025, 10:28 | 8.65 | 8.65 mg/l |
| 2 Apr 2025, 12:27 | 12.7 | 12.7 mg/l |
| 19 Mar 2024, 13:11 | 9.94 | 9.94 mg/l |
| 20 Feb 2024, 11:39 | 8.22 | 8.22 mg/l |
| 15 Jan 2024, 11:08 | 6.76 | 6.76 mg/l |
| 12 Dec 2023, 13:11 | 5.9 | 5.9 mg/l |
| 21 Nov 2023, 11:10 | 6.77 | 6.77 mg/l |
| 24 Oct 2023, 10:13 | 2.04 | 2.04 mg/l |
Water temperature
code 0076 · °C
17 °C
Sampled 22 May 2026, 4 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 May 2026, 11:12 | 17 | 17 °C |
| 10 Mar 2026, 10:02 | 7.5 | 7.5 °C |
| 4 Feb 2026, 12:18 | 4.9 | 4.9 °C |
| 9 Jan 2026, 09:38 | 3.3 | 3.3 °C |
| 2 Dec 2025, 12:56 | 7.3 | 7.3 °C |
| 7 Nov 2025, 11:14 | 11.5 | 11.5 °C |
| 9 Oct 2025, 12:08 | 12.3 | 12.3 °C |
| 11 Sep 2025, 13:46 | 13.6 | 13.6 °C |
| 12 Aug 2025, 12:38 | 17.6 | 17.6 °C |
| 11 Jul 2025, 13:15 | 18.1 | 18.1 °C |
| 2 May 2025, 10:28 | 13.7 | 13.7 °C |
| 2 Apr 2025, 12:27 | 10.2 | 10.2 °C |
| 19 Mar 2024, 13:11 | 14 | 14 °C |
| 20 Feb 2024, 11:39 | 9 | 9 °C |
| 15 Jan 2024, 11:08 | 2.5 | 2.5 °C |
| 12 Dec 2023, 13:11 | 7.4 | 7.4 °C |
| 21 Nov 2023, 11:10 | 9 | 9 °C |
| 24 Oct 2023, 10:13 | 10.4 | 10.4 °C |
pH
code 0061
8.24
Sampled 22 May 2026, 4 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 May 2026, 11:12 | 8.24 | 8.24 |
| 10 Mar 2026, 10:02 | 7.2 | 7.2 |
| 4 Feb 2026, 12:18 | 7.04 | 7.04 |
| 9 Jan 2026, 09:38 | 6.87 | 6.87 |
| 2 Dec 2025, 12:56 | 7.08 | 7.08 |
| 7 Nov 2025, 11:14 | 7.37 | 7.37 |
| 9 Oct 2025, 12:08 | 7.34 | 7.34 |
| 11 Sep 2025, 13:46 | 7.44 | 7.44 |
| 12 Aug 2025, 12:38 | 7.52 | 7.52 |
| 11 Jul 2025, 13:15 | 7.66 | 7.66 |
| 2 May 2025, 10:28 | 8.12 | 8.12 |
| 2 Apr 2025, 12:27 | 7.94 | 7.94 |
| 19 Mar 2024, 13:11 | 7.26 | 7.26 |
| 20 Feb 2024, 11:39 | 7.15 | 7.15 |
| 15 Jan 2024, 11:08 | 7.25 | 7.25 |
| 12 Dec 2023, 13:11 | 7.08 | 7.08 |
| 21 Nov 2023, 11:10 | 7.12 | 7.12 |
| 24 Oct 2023, 10:13 | 6.98 | 6.98 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 22 May 2026, 4 months ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 May 2026, 11:12 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Mar 2026, 10:02 | 0.15 | 0.15 mg/l |
| 4 Feb 2026, 12:18 | 0.19 | 0.19 mg/l |
| 9 Jan 2026, 09:38 | 0.16 | 0.16 mg/l |
| 2 Dec 2025, 12:56 | 0.24 | 0.24 mg/l |
| 7 Nov 2025, 11:14 | 0.2 | 0.2 mg/l |
| 9 Oct 2025, 12:08 | 0.054 | 0.054 mg/l |
| 11 Sep 2025, 13:46 | 0.33 | 0.33 mg/l |
| 12 Aug 2025, 12:38 | 0.08 | 0.08 mg/l |
| 11 Jul 2025, 13:15 | 0.062 | 0.062 mg/l |
| 2 May 2025, 10:28 | 0.076 | 0.076 mg/l |
| 19 Mar 2024, 13:11 | 0.079 | 0.079 mg/l |
| 20 Feb 2024, 11:39 | 0.13 | 0.13 mg/l |
| 15 Jan 2024, 11:08 | 0.8 | 0.8 mg/l |
| 12 Dec 2023, 13:11 | 0.22 | 0.22 mg/l |
| 21 Nov 2023, 11:10 | 0.28 | 0.28 mg/l |
| 24 Oct 2023, 10:13 | 1.6 | 1.6 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
below 0.196 mg/l (not detected above this)
Sampled 22 May 2026, 4 months ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 May 2026, 11:12 | <0.196 | below 0.196 mg/l (not detected above this) |
| 10 Mar 2026, 10:02 | 12.9 | 12.9 mg/l |
| 4 Feb 2026, 12:18 | 14.9 | 14.9 mg/l |
| 9 Jan 2026, 09:38 | 12.9 | 12.9 mg/l |
| 2 Dec 2025, 12:56 | 10.9 | 10.9 mg/l |
| 7 Nov 2025, 11:14 | 0.18 | 0.18 mg/l |
| 9 Oct 2025, 12:08 | <0.196 | below 0.196 mg/l (not detected above this) |
| 11 Sep 2025, 13:46 | 0.193 | 0.193 mg/l |
| 12 Aug 2025, 12:38 | <0.196 | below 0.196 mg/l (not detected above this) |
| 11 Jul 2025, 13:15 | 6.88 | 6.88 mg/l |
| 2 May 2025, 10:28 | 0.923 | 0.923 mg/l |
| 19 Mar 2024, 13:11 | 4.68 | 4.68 mg/l |
| 20 Feb 2024, 11:39 | 6.49 | 6.49 mg/l |
| 15 Jan 2024, 11:08 | 5.35 | 5.35 mg/l |
| 12 Dec 2023, 13:11 | 7.26 | 7.26 mg/l |
| 21 Nov 2023, 11:10 | 5.92 | 5.92 mg/l |
| 24 Oct 2023, 10:13 | 4.36 | 4.36 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.092 mg/l
Sampled 22 May 2026, 4 months ago · 17 results banked
Every result (17)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 May 2026, 11:12 | 0.092 | 0.092 mg/l |
| 10 Mar 2026, 10:02 | 0.06 | 0.06 mg/l |
| 4 Feb 2026, 12:18 | 0.073 | 0.073 mg/l |
| 9 Jan 2026, 09:38 | 0.14 | 0.14 mg/l |
| 2 Dec 2025, 12:56 | 0.12 | 0.12 mg/l |
| 7 Nov 2025, 11:14 | 0.15 | 0.15 mg/l |
| 9 Oct 2025, 12:08 | 0.28 | 0.28 mg/l |
| 11 Sep 2025, 13:46 | 0.16 | 0.16 mg/l |
| 12 Aug 2025, 12:38 | 0.1 | 0.1 mg/l |
| 11 Jul 2025, 13:15 | 0.064 | 0.064 mg/l |
| 2 May 2025, 10:28 | 0.039 | 0.039 mg/l |
| 19 Mar 2024, 13:11 | 0.068 | 0.068 mg/l |
| 20 Feb 2024, 11:39 | 0.11 | 0.11 mg/l |
| 15 Jan 2024, 11:08 | 0.032 | 0.032 mg/l |
| 12 Dec 2023, 13:11 | 0.16 | 0.16 mg/l |
| 21 Nov 2023, 11:10 | 0.13 | 0.13 mg/l |
| 24 Oct 2023, 10:13 | 0.24 | 0.24 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
783 µS/cm
Sampled 22 May 2026, 4 months ago · 18 results banked
Every result (18)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 May 2026, 11:12 | 783 | 783 µS/cm |
| 10 Mar 2026, 10:02 | 727 | 727 µS/cm |
| 4 Feb 2026, 12:18 | 740 | 740 µS/cm |
| 9 Jan 2026, 09:38 | 687 | 687 µS/cm |
| 2 Dec 2025, 12:56 | 693 | 693 µS/cm |
| 7 Nov 2025, 11:14 | 828 | 828 µS/cm |
| 9 Oct 2025, 12:08 | 735 | 735 µS/cm |
| 11 Sep 2025, 13:46 | 631 | 631 µS/cm |
| 12 Aug 2025, 12:38 | 685 | 685 µS/cm |
| 11 Jul 2025, 13:15 | 836 | 836 µS/cm |
| 2 May 2025, 10:28 | 693 | 693 µS/cm |
| 2 Apr 2025, 12:27 | 700 | 700 µS/cm |
| 19 Mar 2024, 13:11 | 655 | 655 µS/cm |
| 20 Feb 2024, 11:39 | 627 | 627 µS/cm |
| 15 Jan 2024, 11:08 | 690 | 690 µS/cm |
| 12 Dec 2023, 13:11 | 602 | 602 µS/cm |
| 21 Nov 2023, 11:10 | 664 | 664 µS/cm |
| 24 Oct 2023, 10:13 | 585 | 585 µS/cm |
Everything measured here
16 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 16 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 18 | Oct 2023 – May 2026 | 138% 22 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 18 | Oct 2023 – May 2026 | 13.3 mg/l 22 May 2026 |
| Temperature of Water 0076 | River water | 18 | Oct 2023 – May 2026 | 17 °C 22 May 2026 |
| pH 0061 | River water | 18 | Oct 2023 – May 2026 | 8.24 22 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 17 | Oct 2023 – May 2026 | below 0.03 mg/l 22 May 2026 |
| Nitrate as N 0117 | River water | 17 | Oct 2023 – May 2026 | below 0.196 mg/l 22 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 17 | Oct 2023 – May 2026 | 0.092 mg/l 22 May 2026 |
| Conductivity at 25 C 0077 | River water | 18 | Oct 2023 – May 2026 | 783 µS/cm 22 May 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 17 | Oct 2023 – May 2026 | 270 mg/l 22 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 17 | Oct 2023 – May 2026 | below 0.00091 mg/l 22 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 24 | Feb 2024 – May 2026 | 8.5 mg/l 22 May 2026 |
| Chloride 0172 | River water | 10 | May 2025 – Mar 2026 | 32 mg/l 10 Mar 2026 |
| Nitrite as N 0118 | River water | 17 | Oct 2023 – May 2026 | below 0.004 mg/l 22 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 17 | Oct 2023 – May 2026 | below 0.2 mg/l 22 May 2026 |
| No flow /No sample 7668 | River water | 1 | Aug 2024 – Aug 2024 | No flow/discharge at sampling point 23 Aug 2024 |
| Solids, Suspended at 105 C 0135 | River water | 10 | May 2025 – Mar 2026 | 5.2 mg/l 10 Mar 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.