Highfurlong Brook above Cherwell, Cropredy
EA name: HIGHFURLONG BROOK ABOVE CHERWELL, CROPRE (also listed as “HIGHFURLONG BROOK ABOVE CHERWELL, CROPREDY”)
Environment Agency sampling point TH-PCHR0050 · 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 Jun 2026, 11:373 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 24 since 26 Jun 2024 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 447251, 247819As published, to the nearest 1 m. Open in a map
- River, by its own name
- Highfurlong Brook
- River, by the map
- Highfurlong BrookPlaced on the river its name gives, 3 m from the line.
- Next gauge downstream
- Cropredy Bridge On the River Cherwell · 1.6 km along the river
- Why it was sampled
- Monitoring (national agency policy) (24 samples)
1 visit found no water to sample (recorded as “No flow”).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
63.5%
Sampled 22 Jun 2026, 3 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 Jun 2026, 11:37 | 63.5 | 63.5% |
| 28 May 2026, 12:22 | 63.3 | 63.3% |
| 23 Mar 2026, 11:37 | 97 | 97% |
| 13 Feb 2026, 11:17 | 87.8 | 87.8% |
| 8 Jan 2026, 13:23 | 90.8 | 90.8% |
| 4 Dec 2025, 12:16 | 83 | 83% |
| 7 Nov 2025, 12:46 | 60.8 | 60.8% |
| 6 Oct 2025, 12:19 | 72.1 | 72.1% |
| 10 Sep 2025, 11:00 | 84.2 | 84.2% |
| 18 Jul 2025, 11:24 | 76.4 | 76.4% |
| 9 Jun 2025, 11:23 | 77.3 | 77.3% |
| 22 May 2025, 10:29 | 77.8 | 77.8% |
| 3 Apr 2025, 11:24 | 107 | 107% |
| 19 Mar 2025, 12:04 | 105.2 | 105.2% |
| 25 Feb 2025, 14:50 | 89.6 | 89.6% |
| 31 Jan 2025, 11:05 | 90.4 | 90.4% |
| 17 Dec 2024, 13:01 | 89.6 | 89.6% |
| 22 Nov 2024, 09:01 | 86.3 | 86.3% |
| 17 Oct 2024, 11:04 | 75.8 | 75.8% |
| 23 Sep 2024, 10:32 | 74 | 74% |
| 30 Aug 2024, 12:25 | 83.5 | 83.5% |
| 30 Jul 2024, 12:20 | 76.7 | 76.7% |
| 26 Jun 2024, 10:07 | 68 | 68% |
Dissolved oxygen
as O2 · code 9924 · mg/l
5.82 mg/l
Sampled 22 Jun 2026, 3 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 Jun 2026, 11:37 | 5.82 | 5.82 mg/l |
| 28 May 2026, 12:22 | 5.99 | 5.99 mg/l |
| 23 Mar 2026, 11:37 | 11.3 | 11.3 mg/l |
| 13 Feb 2026, 11:17 | 10.7 | 10.7 mg/l |
| 8 Jan 2026, 13:23 | 12.2 | 12.2 mg/l |
| 4 Dec 2025, 12:16 | 10 | 10 mg/l |
| 7 Nov 2025, 12:46 | 6.48 | 6.48 mg/l |
| 6 Oct 2025, 12:19 | 7.82 | 7.82 mg/l |
| 10 Sep 2025, 11:00 | 8.67 | 8.67 mg/l |
| 18 Jul 2025, 11:24 | 7.11 | 7.11 mg/l |
| 9 Jun 2025, 11:23 | 8.13 | 8.13 mg/l |
| 22 May 2025, 10:29 | 8.5 | 8.5 mg/l |
| 3 Apr 2025, 11:24 | 12.2 | 12.2 mg/l |
| 19 Mar 2025, 12:04 | 13.2 | 13.2 mg/l |
| 25 Feb 2025, 14:50 | 10.6 | 10.6 mg/l |
| 31 Jan 2025, 11:05 | 11.6 | 11.6 mg/l |
| 17 Dec 2024, 13:01 | 10.7 | 10.7 mg/l |
| 22 Nov 2024, 09:01 | 11 | 11 mg/l |
| 17 Oct 2024, 11:04 | 7.95 | 7.95 mg/l |
| 23 Sep 2024, 10:32 | 7.44 | 7.44 mg/l |
| 30 Aug 2024, 12:25 | 8.66 | 8.66 mg/l |
| 30 Jul 2024, 12:20 | 7.3 | 7.3 mg/l |
| 26 Jun 2024, 10:07 | 6.53 | 6.53 mg/l |
Water temperature
code 0076 · °C
19.5 °C
Sampled 22 Jun 2026, 3 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 Jun 2026, 11:37 | 19.5 | 19.5 °C |
| 28 May 2026, 12:22 | 17.9 | 17.9 °C |
| 23 Mar 2026, 11:37 | 8.5 | 8.5 °C |
| 13 Feb 2026, 11:17 | 6.7 | 6.7 °C |
| 8 Jan 2026, 13:23 | 2.9 | 2.9 °C |
| 4 Dec 2025, 12:16 | 7.1 | 7.1 °C |
| 7 Nov 2025, 12:46 | 12.4 | 12.4 °C |
| 6 Oct 2025, 12:19 | 11.6 | 11.6 °C |
| 10 Sep 2025, 11:00 | 13.9 | 13.9 °C |
| 18 Jul 2025, 11:24 | 18.7 | 18.7 °C |
| 9 Jun 2025, 11:23 | 13 | 13 °C |
| 22 May 2025, 10:29 | 11.3 | 11.3 °C |
| 3 Apr 2025, 11:24 | 9.5 | 9.5 °C |
| 19 Mar 2025, 12:04 | 5.7 | 5.7 °C |
| 25 Feb 2025, 14:50 | 8 | 8 °C |
| 31 Jan 2025, 11:05 | 4.8 | 4.8 °C |
| 17 Dec 2024, 13:01 | 7.6 | 7.6 °C |
| 22 Nov 2024, 09:01 | 5.2 | 5.2 °C |
| 17 Oct 2024, 11:04 | 13.1 | 13.1 °C |
| 23 Sep 2024, 10:32 | 15 | 15 °C |
| 30 Aug 2024, 12:25 | 13.6 | 13.6 °C |
| 30 Jul 2024, 12:20 | 17.6 | 17.6 °C |
| 26 Jun 2024, 10:07 | 17.2 | 17.2 °C |
pH
code 0061
7.68
Sampled 22 Jun 2026, 3 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 Jun 2026, 11:37 | 7.68 | 7.68 |
| 28 May 2026, 12:22 | 7.81 | 7.81 |
| 23 Mar 2026, 11:37 | 8.31 | 8.31 |
| 13 Feb 2026, 11:17 | 7.68 | 7.68 |
| 8 Jan 2026, 13:23 | 7.85 | 7.85 |
| 4 Dec 2025, 12:16 | 7.64 | 7.64 |
| 7 Nov 2025, 12:46 | 7.56 | 7.56 |
| 6 Oct 2025, 12:19 | 7.71 | 7.71 |
| 10 Sep 2025, 11:00 | 7.95 | 7.95 |
| 18 Jul 2025, 11:24 | 7.77 | 7.77 |
| 9 Jun 2025, 11:23 | 7.78 | 7.78 |
| 22 May 2025, 10:29 | 7.77 | 7.77 |
| 3 Apr 2025, 11:24 | 8.21 | 8.21 |
| 19 Mar 2025, 12:04 | 8.05 | 8.05 |
| 25 Feb 2025, 14:50 | 7.74 | 7.74 |
| 31 Jan 2025, 11:05 | 7.65 | 7.65 |
| 17 Dec 2024, 13:01 | 7.87 | 7.87 |
| 22 Nov 2024, 09:01 | 7.68 | 7.68 |
| 17 Oct 2024, 11:04 | 7.6 | 7.6 |
| 23 Sep 2024, 10:32 | 7.7 | 7.7 |
| 30 Aug 2024, 12:25 | 7.83 | 7.83 |
| 30 Jul 2024, 12:20 | 7.79 | 7.79 |
| 26 Jun 2024, 10:07 | 7.75 | 7.75 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.042 mg/l
Sampled 22 Jun 2026, 3 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 Jun 2026, 11:37 | 0.042 | 0.042 mg/l |
| 28 May 2026, 12:22 | 0.042 | 0.042 mg/l |
| 23 Mar 2026, 11:37 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Feb 2026, 11:17 | 0.053 | 0.053 mg/l |
| 8 Jan 2026, 13:23 | 0.092 | 0.092 mg/l |
| 4 Dec 2025, 12:16 | 0.037 | 0.037 mg/l |
| 7 Nov 2025, 12:46 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Oct 2025, 12:19 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Sep 2025, 11:00 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Jul 2025, 11:24 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Jun 2025, 11:23 | 0.051 | 0.051 mg/l |
| 22 May 2025, 10:29 | 0.041 | 0.041 mg/l |
| 3 Apr 2025, 11:24 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Mar 2025, 12:04 | <0.03 | below 0.03 mg/l (not detected above this) |
| 25 Feb 2025, 14:50 | 0.052 | 0.052 mg/l |
| 31 Jan 2025, 11:05 | 0.088 | 0.088 mg/l |
| 17 Dec 2024, 13:01 | 0.068 | 0.068 mg/l |
| 22 Nov 2024, 09:01 | 0.22 | 0.22 mg/l |
| 17 Oct 2024, 11:04 | <0.03 | below 0.03 mg/l (not detected above this) |
| 23 Sep 2024, 10:32 | 0.035 | 0.035 mg/l |
| 30 Aug 2024, 12:25 | <0.03 | below 0.03 mg/l (not detected above this) |
| 30 Jul 2024, 12:20 | 0.032 | 0.032 mg/l |
| 26 Jun 2024, 10:07 | 0.055 | 0.055 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.315 mg/l
Sampled 22 Jun 2026, 3 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 Jun 2026, 11:37 | 0.315 | 0.315 mg/l |
| 28 May 2026, 12:22 | 0.311 | 0.311 mg/l |
| 23 Mar 2026, 11:37 | 4.19 | 4.19 mg/l |
| 13 Feb 2026, 11:17 | 6.97 | 6.97 mg/l |
| 8 Jan 2026, 13:23 | 7.04 | 7.04 mg/l |
| 4 Dec 2025, 12:16 | 10.9 | 10.9 mg/l |
| 7 Nov 2025, 12:46 | <0.196 | below 0.196 mg/l (not detected above this) |
| 6 Oct 2025, 12:19 | <0.196 | below 0.196 mg/l (not detected above this) |
| 10 Sep 2025, 11:00 | 0.226 | 0.226 mg/l |
| 18 Jul 2025, 11:24 | 0.256 | 0.256 mg/l |
| 9 Jun 2025, 11:23 | 0.451 | 0.451 mg/l |
| 22 May 2025, 10:29 | 0.5 | 0.5 mg/l |
| 3 Apr 2025, 11:24 | 2.59 | 2.59 mg/l |
| 19 Mar 2025, 12:04 | 4.19 | 4.19 mg/l |
| 25 Feb 2025, 14:50 | 4.48 | 4.48 mg/l |
| 31 Jan 2025, 11:05 | 4.77 | 4.77 mg/l |
| 17 Dec 2024, 13:01 | 4.55 | 4.55 mg/l |
| 22 Nov 2024, 09:01 | 4.75 | 4.75 mg/l |
| 17 Oct 2024, 11:04 | 4.63 | 4.63 mg/l |
| 23 Sep 2024, 10:32 | 1.8 | 1.8 mg/l |
| 30 Aug 2024, 12:25 | 0.216 | 0.216 mg/l |
| 30 Jul 2024, 12:20 | 1.09 | 1.09 mg/l |
| 26 Jun 2024, 10:07 | 1.28 | 1.28 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.11 mg/l
Sampled 22 Jun 2026, 3 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 Jun 2026, 11:37 | 0.11 | 0.11 mg/l |
| 28 May 2026, 12:22 | 0.089 | 0.089 mg/l |
| 23 Mar 2026, 11:37 | 0.013 | 0.013 mg/l |
| 13 Feb 2026, 11:17 | 0.054 | 0.054 mg/l |
| 8 Jan 2026, 13:23 | 0.045 | 0.045 mg/l |
| 4 Dec 2025, 12:16 | 0.052 | 0.052 mg/l |
| 7 Nov 2025, 12:46 | 0.044 | 0.044 mg/l |
| 6 Oct 2025, 12:19 | 0.041 | 0.041 mg/l |
| 10 Sep 2025, 11:00 | 0.049 | 0.049 mg/l |
| 18 Jul 2025, 11:24 | 0.1 | 0.1 mg/l |
| 9 Jun 2025, 11:23 | 0.072 | 0.072 mg/l |
| 22 May 2025, 10:29 | 0.073 | 0.073 mg/l |
| 3 Apr 2025, 11:24 | 0.016 | 0.016 mg/l |
| 19 Mar 2025, 12:04 | 0.03 | 0.03 mg/l |
| 25 Feb 2025, 14:50 | 0.041 | 0.041 mg/l |
| 31 Jan 2025, 11:05 | 0.036 | 0.036 mg/l |
| 17 Dec 2024, 13:01 | 0.076 | 0.076 mg/l |
| 22 Nov 2024, 09:01 | 0.05 | 0.05 mg/l |
| 17 Oct 2024, 11:04 | 0.047 | 0.047 mg/l |
| 23 Sep 2024, 10:32 | 0.091 | 0.091 mg/l |
| 30 Aug 2024, 12:25 | 0.071 | 0.071 mg/l |
| 30 Jul 2024, 12:20 | 0.087 | 0.087 mg/l |
| 26 Jun 2024, 10:07 | 0.076 | 0.076 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
585 µS/cm
Sampled 22 Jun 2026, 3 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 Jun 2026, 11:37 | 585 | 585 µS/cm |
| 28 May 2026, 12:22 | 604 | 604 µS/cm |
| 23 Mar 2026, 11:37 | 519 | 519 µS/cm |
| 13 Feb 2026, 11:17 | 472 | 472 µS/cm |
| 8 Jan 2026, 13:23 | 631 | 631 µS/cm |
| 4 Dec 2025, 12:16 | 754 | 754 µS/cm |
| 7 Nov 2025, 12:46 | 669 | 669 µS/cm |
| 6 Oct 2025, 12:19 | 613 | 613 µS/cm |
| 10 Sep 2025, 11:00 | 601 | 601 µS/cm |
| 18 Jul 2025, 11:24 | 413 | 413 µS/cm |
| 9 Jun 2025, 11:23 | 473 | 473 µS/cm |
| 22 May 2025, 10:29 | 450 | 450 µS/cm |
| 3 Apr 2025, 11:24 | 603 | 603 µS/cm |
| 19 Mar 2025, 12:04 | 619 | 619 µS/cm |
| 25 Feb 2025, 14:50 | 462 | 462 µS/cm |
| 31 Jan 2025, 11:05 | 482 | 482 µS/cm |
| 17 Dec 2024, 13:01 | 520 | 520 µS/cm |
| 22 Nov 2024, 09:01 | 505 | 505 µS/cm |
| 17 Oct 2024, 11:04 | 498 | 498 µS/cm |
| 23 Sep 2024, 10:32 | 516 | 516 µS/cm |
| 30 Aug 2024, 12:25 | 550 | 550 µS/cm |
| 30 Jul 2024, 12:20 | 522 | 522 µS/cm |
| 26 Jun 2024, 10:07 | 561 | 561 µS/cm |
Everything measured here
14 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 14 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 23 | Jun 2024 – Jun 2026 | 63.5% 22 Jun 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 23 | Jun 2024 – Jun 2026 | 5.82 mg/l 22 Jun 2026 |
| Temperature of Water 0076 | River water | 23 | Jun 2024 – Jun 2026 | 19.5 °C 22 Jun 2026 |
| pH 0061 | River water | 23 | Jun 2024 – Jun 2026 | 7.68 22 Jun 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 23 | Jun 2024 – Jun 2026 | 0.042 mg/l 22 Jun 2026 |
| Nitrate as N 0117 | River water | 23 | Jun 2024 – Jun 2026 | 0.315 mg/l 22 Jun 2026 |
| Orthophosphate, reactive as P 0180 | River water | 23 | Jun 2024 – Jun 2026 | 0.11 mg/l 22 Jun 2026 |
| Conductivity at 25 C 0077 | River water | 23 | Jun 2024 – Jun 2026 | 585 µS/cm 22 Jun 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 23 | Jun 2024 – Jun 2026 | 200 mg/l 22 Jun 2026 |
| Ammonia un-ionised as N 0119 | River water | 23 | Jun 2024 – Jun 2026 | 0.00075 mg/l 22 Jun 2026 |
| BOD : 5 Day ATU 0085 | River water | 23 | Jun 2024 – Jun 2026 | below 1 mg/l 22 Jun 2026 |
| Nitrite as N 0118 | River water | 23 | Jun 2024 – Jun 2026 | 0.0048 mg/l 22 Jun 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 23 | Jun 2024 – Jun 2026 | 0.32 mg/l 22 Jun 2026 |
| No flow /No sample 7668 | River water | 1 | Aug 2025 – Aug 2025 | No flow/discharge at sampling point 15 Aug 2025 |
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.