Willow Brook Central Water Lane Weldon
EA name: WILLOW BK.CENTRAL WATER LANE WELDON
Environment Agency sampling point AN-WILC020W · 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
- 4 Mar 2024, 09:172.6 years 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 8 Oct 2026 and had nothing newer.
- Samples banked
- 6 since 12 Oct 2023 Imported periods: 1 Oct 2023 – 8 Oct 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Environmental monitoring statutory (EU directives)
- Where
- National Grid 492140, 289629As published, to the nearest 1 m. Open in a map
- River, by its own name
- Willow Brook
- River, by the map
- Willow BrookPlaced on the river its name gives, 261 m from the line.
- Next gauge downstream
- Fotheringhay On the Willow Brook · 25 km along the riverFOTHERINGHAY GS 25 km along the river
- Nearest gauge upstream
- Weldon Flood Storage Reservoir On the Willow Brook · 0.3 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (6 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
82.8%
Sampled 4 Mar 2024, 2.6 years ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Mar 2024, 09:17 | 82.8 | 82.8% |
| 7 Feb 2024, 10:32 | 88.2 | 88.2% |
| 4 Jan 2024, 08:42 | 91.9 | 91.9% |
| 8 Dec 2023, 09:47 | 87.6 | 87.6% |
| 1 Nov 2023, 11:30 | 78.4 | 78.4% |
| 12 Oct 2023, 12:02 | 75.4 | 75.4% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10.3 mg/l
Sampled 4 Mar 2024, 2.6 years ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Mar 2024, 09:17 | 10.3 | 10.3 mg/l |
| 7 Feb 2024, 10:32 | 10.4 | 10.4 mg/l |
| 4 Jan 2024, 08:42 | 10.8 | 10.8 mg/l |
| 8 Dec 2023, 09:47 | 10.7 | 10.7 mg/l |
| 1 Nov 2023, 11:30 | 8.55 | 8.55 mg/l |
| 12 Oct 2023, 12:02 | 7.63 | 7.63 mg/l |
Water temperature
code 0076 · °C
6.1 °C
Sampled 4 Mar 2024, 2.6 years ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Mar 2024, 09:17 | 6.1 | 6.1 °C |
| 7 Feb 2024, 10:32 | 8.3 | 8.3 °C |
| 4 Jan 2024, 08:42 | 8.2 | 8.2 °C |
| 8 Dec 2023, 09:47 | 6.7 | 6.7 °C |
| 1 Nov 2023, 11:30 | 11.4 | 11.4 °C |
| 12 Oct 2023, 12:02 | 14.7 | 14.7 °C |
pH
code 0061
8.34
Sampled 4 Mar 2024, 2.6 years ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Mar 2024, 09:17 | 8.34 | 8.34 |
| 7 Feb 2024, 10:32 | 8.24 | 8.24 |
| 4 Jan 2024, 08:42 | 8.28 | 8.28 |
| 8 Dec 2023, 09:47 | 7.84 | 7.84 |
| 1 Nov 2023, 11:30 | 8.06 | 8.06 |
| 12 Oct 2023, 12:02 | 8.17 | 8.17 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.68 mg/l
Sampled 4 Mar 2024, 2.6 years ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Mar 2024, 09:17 | 0.68 | 0.68 mg/l |
| 7 Feb 2024, 10:32 | 0.9 | 0.9 mg/l |
| 4 Jan 2024, 08:42 | 0.099 | 0.099 mg/l |
| 8 Dec 2023, 09:47 | 0.27 | 0.27 mg/l |
| 1 Nov 2023, 11:30 | 0.65 | 0.65 mg/l |
| 12 Oct 2023, 12:02 | 0.69 | 0.69 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
2.05 mg/l
Sampled 4 Mar 2024, 2.6 years ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Mar 2024, 09:17 | 2.05 | 2.05 mg/l |
| 7 Feb 2024, 10:32 | 2.14 | 2.14 mg/l |
| 4 Jan 2024, 08:42 | 0.844 | 0.844 mg/l |
| 8 Dec 2023, 09:47 | 0.924 | 0.924 mg/l |
| 1 Nov 2023, 11:30 | 1.34 | 1.34 mg/l |
| 12 Oct 2023, 12:02 | 1.82 | 1.82 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.037 mg/l
Sampled 4 Mar 2024, 2.6 years ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Mar 2024, 09:17 | 0.037 | 0.037 mg/l |
| 7 Feb 2024, 10:32 | 0.058 | 0.058 mg/l |
| 4 Jan 2024, 08:42 | 0.034 | 0.034 mg/l |
| 8 Dec 2023, 09:47 | 0.018 | 0.018 mg/l |
| 1 Nov 2023, 11:30 | 0.046 | 0.046 mg/l |
| 12 Oct 2023, 12:02 | 0.029 | 0.029 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
862 µS/cm
Sampled 4 Mar 2024, 2.6 years ago · 6 results banked
Every result (6)
| Sampled | Result as published | Reads as |
|---|---|---|
| 4 Mar 2024, 09:17 | 862 | 862 µS/cm |
| 7 Feb 2024, 10:32 | 900 | 900 µS/cm |
| 4 Jan 2024, 08:42 | 454 | 454 µS/cm |
| 8 Dec 2023, 09:47 | 623 | 623 µS/cm |
| 1 Nov 2023, 11:30 | 553 | 553 µS/cm |
| 12 Oct 2023, 12:02 | 704 | 704 µS/cm |
Everything measured here
23 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 23 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 6 | Oct 2023 – Mar 2024 | 82.8% 4 Mar 2024 |
| Oxygen, Dissolved as O2 9924 | River water | 6 | Oct 2023 – Mar 2024 | 10.3 mg/l 4 Mar 2024 |
| Temperature of Water 0076 | River water | 6 | Oct 2023 – Mar 2024 | 6.1 °C 4 Mar 2024 |
| pH 0061 | River water | 6 | Oct 2023 – Mar 2024 | 8.34 4 Mar 2024 |
| Ammoniacal Nitrogen as N 0111 | River water | 6 | Oct 2023 – Mar 2024 | 0.68 mg/l 4 Mar 2024 |
| Nitrate as N 0117 | River water | 6 | Oct 2023 – Mar 2024 | 2.05 mg/l 4 Mar 2024 |
| Orthophosphate, reactive as P 0180 | River water | 6 | Oct 2023 – Mar 2024 | 0.037 mg/l 4 Mar 2024 |
| Conductivity at 25 C 0077 | River water | 6 | Oct 2023 – Mar 2024 | 862 µS/cm 4 Mar 2024 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 6 | Oct 2023 – Mar 2024 | 140 mg/l 4 Mar 2024 |
| Ammonia un-ionised as N 0119 | River water | 6 | Oct 2023 – Mar 2024 | 0.00931 mg/l 4 Mar 2024 |
| BOD : 5 Day ATU 0085 | River water | 6 | Oct 2023 – Mar 2024 | below 2 mg/l 4 Mar 2024 |
| Cadmium, Dissolved 0106 | River water | 6 | Oct 2023 – Mar 2024 | below 0.01 µg/l 4 Mar 2024 |
| Calcium 0241 | River water | 2 | Oct 2023 – Jan 2024 | 56 mg/l 4 Jan 2024 |
| Calcium, Dissolved 0239 | River water | 6 | Oct 2023 – Mar 2024 | 99 mg/l 4 Mar 2024 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 6 | Oct 2023 – Mar 2024 | 2.7 mg/l 4 Mar 2024 |
| Hardness, Total as CaCO3 0158 | River water | 2 | Oct 2023 – Jan 2024 | 165 mg/l 4 Jan 2024 |
| Magnesium 0237 | River water | 2 | Oct 2023 – Jan 2024 | 5.7 mg/l 4 Jan 2024 |
| Magnesium, Dissolved 0235 | River water | 6 | Oct 2023 – Mar 2024 | 10 mg/l 4 Mar 2024 |
| Mercury, Dissolved 0103 | River water | 6 | Oct 2023 – Mar 2024 | below 0.01 µg/l 4 Mar 2024 |
| Nitrite as N 0118 | River water | 6 | Oct 2023 – Mar 2024 | 0.051 mg/l 4 Mar 2024 |
| Nitrogen, Total Oxidised as N 0116 | River water | 6 | Oct 2023 – Mar 2024 | 2.1 mg/l 4 Mar 2024 |
| Zinc 6455 | River water | 2 | Oct 2023 – Jan 2024 | 160 µg/l 4 Jan 2024 |
| Zinc, Dissolved 3408 | River water | 2 | Oct 2023 – Jan 2024 | 95 µg/l 4 Jan 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.