Bourne Brook upstream of A131 Road Bridge
EA name: BOURNE BK.U/S A131 ROAD BRIDGE (also listed as “RSN2049 BOURNE BK.U/S A131 ROAD BRIDGE”)
Environment Agency sampling point AN-RSN2049 · 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
- 2 Dec 2024, 13:5522 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
- 15 since 2 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 579877, 228968As published, to the nearest 1 m. Open in a map
- River, by its own name
- Bourne Brook
- River, by the map
- Bourne BrookPlaced on the river its name gives, 1 m from the line.
- Next gauge downstream
- EARLS COLNE FGS 8.7 km along the riverEarls Colne On the River Colne · 8.7 km along the river
- Why it was sampled
- Monitoring (national agency policy) (15 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
86%
Sampled 2 Dec 2024, 22 months ago · 15 results banked
Every result (15)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Dec 2024, 13:55 | 86 | 86% |
| 4 Nov 2024, 13:41 | 79.2 | 79.2% |
| 2 Oct 2024, 08:19 | 88.4 | 88.4% |
| 9 Sep 2024, 10:06 | 72.2 | 72.2% |
| 2 Aug 2024, 07:47 | 64.9 | 64.9% |
| 1 Jul 2024, 10:12 | 75.8 | 75.8% |
| 11 Jun 2024, 14:57 | 83.7 | 83.7% |
| 1 May 2024, 11:20 | 96.4 | 96.4% |
| 4 Apr 2024, 10:25 | 96 | 96% |
| 8 Mar 2024, 13:25 | 95.2 | 95.2% |
| 1 Feb 2024, 13:54 | 90.5 | 90.5% |
| 2 Jan 2024, 12:57 | 102.3 | 102.3% |
| 7 Dec 2023, 13:44 | 91.1 | 91.1% |
| 9 Nov 2023, 11:28 | 90.7 | 90.7% |
| 2 Oct 2023, 11:19 | 75.8 | 75.8% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10 mg/l
Sampled 2 Dec 2024, 22 months ago · 15 results banked
Every result (15)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Dec 2024, 13:55 | 10 | 10 mg/l |
| 4 Nov 2024, 13:41 | 8.57 | 8.57 mg/l |
| 2 Oct 2024, 08:19 | 9.25 | 9.25 mg/l |
| 9 Sep 2024, 10:06 | 7.19 | 7.19 mg/l |
| 2 Aug 2024, 07:47 | 6.24 | 6.24 mg/l |
| 1 Jul 2024, 10:12 | 7.55 | 7.55 mg/l |
| 11 Jun 2024, 14:57 | 8.68 | 8.68 mg/l |
| 1 May 2024, 11:20 | 10.1 | 10.1 mg/l |
| 4 Apr 2024, 10:25 | 10.6 | 10.6 mg/l |
| 8 Mar 2024, 13:25 | 11.2 | 11.2 mg/l |
| 1 Feb 2024, 13:54 | 11 | 11 mg/l |
| 2 Jan 2024, 12:57 | 12 | 12 mg/l |
| 7 Dec 2023, 13:44 | 11.7 | 11.7 mg/l |
| 9 Nov 2023, 11:28 | 10.5 | 10.5 mg/l |
| 2 Oct 2023, 11:19 | 7.43 | 7.43 mg/l |
Water temperature
code 0076 · °C
8.5 °C
Sampled 2 Dec 2024, 22 months ago · 15 results banked
Every result (15)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Dec 2024, 13:55 | 8.5 | 8.5 °C |
| 4 Nov 2024, 13:41 | 11.7 | 11.7 °C |
| 2 Oct 2024, 08:19 | 13.2 | 13.2 °C |
| 9 Sep 2024, 10:06 | 15.4 | 15.4 °C |
| 2 Aug 2024, 07:47 | 17.1 | 17.1 °C |
| 1 Jul 2024, 10:12 | 15.4 | 15.4 °C |
| 11 Jun 2024, 14:57 | 13.6 | 13.6 °C |
| 1 May 2024, 11:20 | 13.2 | 13.2 °C |
| 4 Apr 2024, 10:25 | 11 | 11 °C |
| 8 Mar 2024, 13:25 | 8.2 | 8.2 °C |
| 1 Feb 2024, 13:54 | 6.8 | 6.8 °C |
| 2 Jan 2024, 12:57 | 8.3 | 8.3 °C |
| 7 Dec 2023, 13:44 | 4.6 | 4.6 °C |
| 9 Nov 2023, 11:28 | 8.9 | 8.9 °C |
| 2 Oct 2023, 11:19 | 16.2 | 16.2 °C |
pH
code 0061
7.67
Sampled 2 Dec 2024, 22 months ago · 15 results banked
Every result (15)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Dec 2024, 13:55 | 7.67 | 7.67 |
| 4 Nov 2024, 13:41 | 7.6 | 7.6 |
| 2 Oct 2024, 08:19 | 7.77 | 7.77 |
| 9 Sep 2024, 10:06 | 7.74 | 7.74 |
| 2 Aug 2024, 07:47 | 7.8 | 7.8 |
| 1 Jul 2024, 10:12 | 7.85 | 7.85 |
| 11 Jun 2024, 14:57 | 7.92 | 7.92 |
| 1 May 2024, 11:20 | 7.96 | 7.96 |
| 4 Apr 2024, 10:25 | 7.99 | 7.99 |
| 8 Mar 2024, 13:25 | 8 | 8 |
| 1 Feb 2024, 13:54 | 7.96 | 7.96 |
| 2 Jan 2024, 12:57 | 7.94 | 7.94 |
| 7 Dec 2023, 13:44 | 7.83 | 7.83 |
| 9 Nov 2023, 11:28 | 7.75 | 7.75 |
| 2 Oct 2023, 11:19 | 7.73 | 7.73 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.13 mg/l
Sampled 2 Dec 2024, 22 months ago · 15 results banked
Every result (15)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Dec 2024, 13:55 | 0.13 | 0.13 mg/l |
| 4 Nov 2024, 13:41 | 0.03 | 0.03 mg/l |
| 2 Oct 2024, 08:19 | 0.052 | 0.052 mg/l |
| 9 Sep 2024, 10:06 | 0.0056 | 0.0056 mg/l |
| 2 Aug 2024, 07:47 | 0.022 | 0.022 mg/l |
| 1 Jul 2024, 10:12 | 0.015 | 0.015 mg/l |
| 11 Jun 2024, 14:57 | 0.02 | 0.02 mg/l |
| 1 May 2024, 11:20 | 0.014 | 0.014 mg/l |
| 4 Apr 2024, 10:25 | 0.0038 | 0.0038 mg/l |
| 8 Mar 2024, 13:25 | 0.1 | 0.1 mg/l |
| 1 Feb 2024, 13:54 | 0.093 | 0.093 mg/l |
| 2 Jan 2024, 12:57 | 0.1 | 0.1 mg/l |
| 7 Dec 2023, 13:44 | 0.038 | 0.038 mg/l |
| 9 Nov 2023, 11:28 | 0.054 | 0.054 mg/l |
| 2 Oct 2023, 11:19 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
9.78 mg/l
Sampled 2 Dec 2024, 22 months ago · 15 results banked
Every result (15)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Dec 2024, 13:55 | 9.78 | 9.78 mg/l |
| 4 Nov 2024, 13:41 | 6.15 | 6.15 mg/l |
| 2 Oct 2024, 08:19 | 4.16 | 4.16 mg/l |
| 9 Sep 2024, 10:06 | 4.69 | 4.69 mg/l |
| 2 Aug 2024, 07:47 | 4.19 | 4.19 mg/l |
| 1 Jul 2024, 10:12 | 4.09 | 4.09 mg/l |
| 11 Jun 2024, 14:57 | 6.17 | 6.17 mg/l |
| 1 May 2024, 11:20 | 10.9 | 10.9 mg/l |
| 4 Apr 2024, 10:25 | 5.76 | 5.76 mg/l |
| 8 Mar 2024, 13:25 | 7.63 | 7.63 mg/l |
| 1 Feb 2024, 13:54 | 8.64 | 8.64 mg/l |
| 2 Jan 2024, 12:57 | 7.26 | 7.26 mg/l |
| 7 Dec 2023, 13:44 | 9.54 | 9.54 mg/l |
| 9 Nov 2023, 11:28 | 10.9 | 10.9 mg/l |
| 2 Oct 2023, 11:19 | 4.88 | 4.88 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.19 mg/l
Sampled 2 Dec 2024, 22 months ago · 15 results banked
Every result (15)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Dec 2024, 13:55 | 0.19 | 0.19 mg/l |
| 4 Nov 2024, 13:41 | 0.44 | 0.44 mg/l |
| 2 Oct 2024, 08:19 | 0.19 | 0.19 mg/l |
| 9 Sep 2024, 10:06 | 0.4 | 0.4 mg/l |
| 2 Aug 2024, 07:47 | 0.31 | 0.31 mg/l |
| 1 Jul 2024, 10:12 | 0.26 | 0.26 mg/l |
| 11 Jun 2024, 14:57 | 0.23 | 0.23 mg/l |
| 1 May 2024, 11:20 | 0.04 | 0.04 mg/l |
| 4 Apr 2024, 10:25 | 0.0041 | 0.0041 mg/l |
| 8 Mar 2024, 13:25 | 0.12 | 0.12 mg/l |
| 1 Feb 2024, 13:54 | 0.14 | 0.14 mg/l |
| 2 Jan 2024, 12:57 | 0.089 | 0.089 mg/l |
| 7 Dec 2023, 13:44 | 0.13 | 0.13 mg/l |
| 9 Nov 2023, 11:28 | 0.13 | 0.13 mg/l |
| 2 Oct 2023, 11:19 | 0.2 | 0.2 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
684 µS/cm
Sampled 2 Dec 2024, 22 months ago · 15 results banked
Every result (15)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Dec 2024, 13:55 | 684 | 684 µS/cm |
| 4 Nov 2024, 13:41 | 699 | 699 µS/cm |
| 2 Oct 2024, 08:19 | 545 | 545 µS/cm |
| 9 Sep 2024, 10:06 | 816 | 816 µS/cm |
| 2 Aug 2024, 07:47 | 701 | 701 µS/cm |
| 1 Jul 2024, 10:12 | 717 | 717 µS/cm |
| 11 Jun 2024, 14:57 | 680 | 680 µS/cm |
| 1 May 2024, 11:20 | 582 | 582 µS/cm |
| 4 Apr 2024, 10:25 | 572 | 572 µS/cm |
| 8 Mar 2024, 13:25 | 565 | 565 µS/cm |
| 1 Feb 2024, 13:54 | 672 | 672 µS/cm |
| 2 Jan 2024, 12:57 | 502 | 502 µS/cm |
| 7 Dec 2023, 13:44 | 621 | 621 µS/cm |
| 9 Nov 2023, 11:28 | 577 | 577 µS/cm |
| 2 Oct 2023, 11:19 | 754 | 754 µS/cm |
Everything measured here
18 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 18 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 15 | Oct 2023 – Dec 2024 | 86% 2 Dec 2024 |
| Oxygen, Dissolved as O2 9924 | River water | 15 | Oct 2023 – Dec 2024 | 10 mg/l 2 Dec 2024 |
| Temperature of Water 0076 | River water | 15 | Oct 2023 – Dec 2024 | 8.5 °C 2 Dec 2024 |
| pH 0061 | River water | 15 | Oct 2023 – Dec 2024 | 7.67 2 Dec 2024 |
| Ammoniacal Nitrogen as N 0111 | River water | 15 | Oct 2023 – Dec 2024 | 0.13 mg/l 2 Dec 2024 |
| Nitrate as N 0117 | River water | 15 | Oct 2023 – Dec 2024 | 9.78 mg/l 2 Dec 2024 |
| Orthophosphate, reactive as P 0180 | River water | 15 | Oct 2023 – Dec 2024 | 0.19 mg/l 2 Dec 2024 |
| Conductivity at 25 C 0077 | River water | 15 | Oct 2023 – Dec 2024 | 684 µS/cm 2 Dec 2024 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 15 | Oct 2023 – Dec 2024 | 200 mg/l 2 Dec 2024 |
| Ammonia un-ionised as N 0119 | River water | 15 | Oct 2023 – Dec 2024 | 0.001 mg/l 2 Dec 2024 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 15 | Oct 2023 – Dec 2024 | 6.4 mg/l 2 Dec 2024 |
| Chloride 0172 | River water | 15 | Oct 2023 – Dec 2024 | 43 mg/l 2 Dec 2024 |
| Flow Type 2896 | River water | 6 | Jul 2024 – Dec 2024 | Moderate Flow 2 Dec 2024 |
| Nitrite as N 0118 | River water | 15 | Oct 2023 – Dec 2024 | 0.12 mg/l 2 Dec 2024 |
| Nitrogen, Total as N 9686 | River water | 14 | Oct 2023 – Nov 2024 | 7.1 mg/l 4 Nov 2024 |
| Nitrogen, Total Oxidised as N 0116 | River water | 15 | Oct 2023 – Dec 2024 | 9.9 mg/l 2 Dec 2024 |
| Phosphorus, Total as P 0348 | River water | 15 | Oct 2023 – Dec 2024 | 0.22 mg/l 2 Dec 2024 |
| Silica, reactive as SiO2 0182 | River water | 15 | Oct 2023 – Dec 2024 | 9.9 mg/l 2 Dec 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.