Longford Stream at Longford Farm
EA name: LONGFORD STREAM AT LONGFORD FM (also listed as “RIVER OUSE TRIBUTARY LONGFORD STREAM AT LONGFORD FARM”)
Environment Agency sampling point SO-F0002260 · 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
- 6 Mar 2025, 13:4519 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
- 9 since 11 Jun 2024 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Environmental monitoring statutory (EU directives)
- Where
- National Grid 543100, 118100As published, to the nearest 100 m (so up to about 70 m out). Open in a map
- River, by its own name
- Longford Stream
- River, by the map
- Longford StreamPlaced on the river its name gives, 31 m from the line.
- Next gauge downstream
- Anchor Gates On the River Ouse · 3.2 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (9 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
100.5%
Sampled 6 Mar 2025, 19 months ago · 9 results banked
Every result (9)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Mar 2025, 13:45 | 100.5 | 100.5% |
| 14 Feb 2025, 11:24 | 95 | 95% |
| 17 Dec 2024, 13:27 | 90.2 | 90.2% |
| 6 Nov 2024, 14:45 | 83.9 | 83.9% |
| 7 Oct 2024, 12:00 | 79.5 | 79.5% |
| 4 Sep 2024, 14:48 | 62.1 | 62.1% |
| 15 Aug 2024, 11:42 | 58.3 | 58.3% |
| 3 Jul 2024, 18:42 | 67.5 | 67.5% |
| 11 Jun 2024, 16:00 | 80.2 | 80.2% |
Dissolved oxygen
as O2 · code 9924 · mg/l
12.2 mg/l
Sampled 6 Mar 2025, 19 months ago · 9 results banked
Every result (9)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Mar 2025, 13:45 | 12.2 | 12.2 mg/l |
| 14 Feb 2025, 11:24 | 12.2 | 12.2 mg/l |
| 17 Dec 2024, 13:27 | 10.6 | 10.6 mg/l |
| 6 Nov 2024, 14:45 | 9.06 | 9.06 mg/l |
| 7 Oct 2024, 12:00 | 8.3 | 8.3 mg/l |
| 4 Sep 2024, 14:48 | 5.91 | 5.91 mg/l |
| 15 Aug 2024, 11:42 | 5.44 | 5.44 mg/l |
| 3 Jul 2024, 18:42 | 6.55 | 6.55 mg/l |
| 11 Jun 2024, 16:00 | 8.08 | 8.08 mg/l |
Water temperature
code 0076 · °C
6.8 °C
Sampled 6 Mar 2025, 19 months ago · 9 results banked
Every result (9)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Mar 2025, 13:45 | 6.8 | 6.8 °C |
| 14 Feb 2025, 11:24 | 4.7 | 4.7 °C |
| 17 Dec 2024, 13:27 | 8.2 | 8.2 °C |
| 6 Nov 2024, 14:45 | 11.8 | 11.8 °C |
| 7 Oct 2024, 12:00 | 13.3 | 13.3 °C |
| 4 Sep 2024, 14:48 | 17.6 | 17.6 °C |
| 15 Aug 2024, 11:42 | 18.6 | 18.6 °C |
| 3 Jul 2024, 18:42 | 16.7 | 16.7 °C |
| 11 Jun 2024, 16:00 | 14.9 | 14.9 °C |
pH
code 0061
7.5
Sampled 6 Mar 2025, 19 months ago · 9 results banked
Every result (9)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Mar 2025, 13:45 | 7.5 | 7.5 |
| 14 Feb 2025, 11:24 | 7.56 | 7.56 |
| 17 Dec 2024, 13:27 | 7.38 | 7.38 |
| 6 Nov 2024, 14:45 | 7.36 | 7.36 |
| 7 Oct 2024, 12:00 | 7.44 | 7.44 |
| 4 Sep 2024, 14:48 | 7.24 | 7.24 |
| 15 Aug 2024, 11:42 | 7.22 | 7.22 |
| 3 Jul 2024, 18:42 | 7.31 | 7.31 |
| 11 Jun 2024, 16:00 | 7.41 | 7.41 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.042 mg/l
Sampled 6 Mar 2025, 19 months ago · 9 results banked
Every result (9)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Mar 2025, 13:45 | 0.042 | 0.042 mg/l |
| 14 Feb 2025, 11:24 | 0.07 | 0.07 mg/l |
| 17 Dec 2024, 13:27 | 0.052 | 0.052 mg/l |
| 6 Nov 2024, 14:45 | 0.055 | 0.055 mg/l |
| 7 Oct 2024, 12:00 | 0.068 | 0.068 mg/l |
| 4 Sep 2024, 14:48 | 0.085 | 0.085 mg/l |
| 15 Aug 2024, 11:42 | 0.12 | 0.12 mg/l |
| 3 Jul 2024, 18:42 | 0.055 | 0.055 mg/l |
| 11 Jun 2024, 16:00 | 0.067 | 0.067 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
1.79 mg/l
Sampled 6 Mar 2025, 19 months ago · 9 results banked
Every result (9)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Mar 2025, 13:45 | 1.79 | 1.79 mg/l |
| 14 Feb 2025, 11:24 | 1.59 | 1.59 mg/l |
| 17 Dec 2024, 13:27 | 1.49 | 1.49 mg/l |
| 6 Nov 2024, 14:45 | 1.08 | 1.08 mg/l |
| 7 Oct 2024, 12:00 | 1.08 | 1.08 mg/l |
| 4 Sep 2024, 14:48 | 0.195 | 0.195 mg/l |
| 15 Aug 2024, 11:42 | 0.193 | 0.193 mg/l |
| 3 Jul 2024, 18:42 | 0.743 | 0.743 mg/l |
| 11 Jun 2024, 16:00 | 0.978 | 0.978 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.041 mg/l
Sampled 6 Mar 2025, 19 months ago · 9 results banked
Every result (9)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Mar 2025, 13:45 | 0.041 | 0.041 mg/l |
| 14 Feb 2025, 11:24 | 0.057 | 0.057 mg/l |
| 17 Dec 2024, 13:27 | 0.052 | 0.052 mg/l |
| 6 Nov 2024, 14:45 | 0.057 | 0.057 mg/l |
| 7 Oct 2024, 12:00 | 0.064 | 0.064 mg/l |
| 4 Sep 2024, 14:48 | 0.033 | 0.033 mg/l |
| 15 Aug 2024, 11:42 | 0.04 | 0.04 mg/l |
| 3 Jul 2024, 18:42 | 0.033 | 0.033 mg/l |
| 11 Jun 2024, 16:00 | 0.024 | 0.024 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
311 µS/cm
Sampled 6 Mar 2025, 19 months ago · 9 results banked
Every result (9)
| Sampled | Result as published | Reads as |
|---|---|---|
| 6 Mar 2025, 13:45 | 311 | 311 µS/cm |
| 14 Feb 2025, 11:24 | 313 | 313 µS/cm |
| 17 Dec 2024, 13:27 | 292 | 292 µS/cm |
| 6 Nov 2024, 14:45 | 324 | 324 µS/cm |
| 7 Oct 2024, 12:00 | 299 | 299 µS/cm |
| 4 Sep 2024, 14:48 | 409 | 409 µS/cm |
| 15 Aug 2024, 11:42 | 387 | 387 µS/cm |
| 3 Jul 2024, 18:42 | 351 | 351 µS/cm |
| 11 Jun 2024, 16:00 | 338 | 338 µS/cm |
Everything measured here
12 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 12 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 9 | Jun 2024 – Mar 2025 | 100.5% 6 Mar 2025 |
| Oxygen, Dissolved as O2 9924 | River water | 9 | Jun 2024 – Mar 2025 | 12.2 mg/l 6 Mar 2025 |
| Temperature of Water 0076 | River water | 9 | Jun 2024 – Mar 2025 | 6.8 °C 6 Mar 2025 |
| pH 0061 | River water | 9 | Jun 2024 – Mar 2025 | 7.5 6 Mar 2025 |
| Ammoniacal Nitrogen as N 0111 | River water | 9 | Jun 2024 – Mar 2025 | 0.042 mg/l 6 Mar 2025 |
| Nitrate as N 0117 | River water | 9 | Jun 2024 – Mar 2025 | 1.79 mg/l 6 Mar 2025 |
| Orthophosphate, reactive as P 0180 | River water | 9 | Jun 2024 – Mar 2025 | 0.041 mg/l 6 Mar 2025 |
| Conductivity at 25 C 0077 | River water | 9 | Jun 2024 – Mar 2025 | 311 µS/cm 6 Mar 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 9 | Jun 2024 – Mar 2025 | 74 mg/l 6 Mar 2025 |
| Ammonia un-ionised as N 0119 | River water | 9 | Jun 2024 – Mar 2025 | 0.00019 mg/l 6 Mar 2025 |
| Nitrite as N 0118 | River water | 9 | Jun 2024 – Mar 2025 | 0.0083 mg/l 6 Mar 2025 |
| Nitrogen, Total Oxidised as N 0116 | River water | 9 | Jun 2024 – Mar 2025 | 1.8 mg/l 6 Mar 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.