Rons Cliff Dike at Heald Lane
EA name: RONS CLIFF DIKE AT HEALD LANE
Environment Agency sampling point NE-49305373 · 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
- 9 Mar 2026, 12:248 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 28 Oct 2026 and had nothing newer.
- Samples banked
- 12 since 23 Apr 2025 Imported periods: 1 Oct 2023 – 28 Oct 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Planned investigation (local monitoring)
- Where
- National Grid 425723, 407302As published, to the nearest 1 m. Open in a map
- River, by its own name
- Rons Cliff Dike
- River, by the map
- Rons Cliff DikePlaced on the river its name gives, 1 m from the line.
- Next gauge downstream
- Barnsley On the River Dearne · 13 km along the river
- Why it was sampled
- Planned investigation (local monitoring) (12 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
95.2%
Sampled 9 Mar 2026, 8 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Mar 2026, 12:24 | 95.2 | 95.2% |
| 10 Feb 2026, 11:40 | 99.7 | 99.7% |
| 15 Jan 2026, 10:48 | 97.9 | 97.9% |
| 18 Dec 2025, 11:10 | 97.4 | 97.4% |
| 6 Nov 2025, 10:47 | 89.6 | 89.6% |
| 15 Oct 2025, 13:21 | 92.4 | 92.4% |
| 15 Sep 2025, 10:37 | 95.4 | 95.4% |
| 22 Aug 2025, 14:10 | 92.6 | 92.6% |
| 24 Jul 2025, 12:39 | 95.6 | 95.6% |
| 26 Jun 2025, 09:41 | 91.1 | 91.1% |
| 14 May 2025, 14:38 | 99.6 | 99.6% |
| 23 Apr 2025, 11:22 | 108.6 | 108.6% |
Dissolved oxygen
as O2 · code 9924 · mg/l
11 mg/l
Sampled 9 Mar 2026, 8 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Mar 2026, 12:24 | 11 | 11 mg/l |
| 10 Feb 2026, 11:40 | 12.2 | 12.2 mg/l |
| 15 Jan 2026, 10:48 | 12.6 | 12.6 mg/l |
| 18 Dec 2025, 11:10 | 11.4 | 11.4 mg/l |
| 6 Nov 2025, 10:47 | 9.86 | 9.86 mg/l |
| 15 Oct 2025, 13:21 | 10.3 | 10.3 mg/l |
| 15 Sep 2025, 10:37 | 10.2 | 10.2 mg/l |
| 22 Aug 2025, 14:10 | 9.5 | 9.5 mg/l |
| 24 Jul 2025, 12:39 | 9.25 | 9.25 mg/l |
| 26 Jun 2025, 09:41 | 8.95 | 8.95 mg/l |
| 14 May 2025, 14:38 | 10.8 | 10.8 mg/l |
| 23 Apr 2025, 11:22 | 12.3 | 12.3 mg/l |
Water temperature
code 0076 · °C
9 °C
Sampled 9 Mar 2026, 8 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Mar 2026, 12:24 | 9 | 9 °C |
| 10 Feb 2026, 11:40 | 6.7 | 6.7 °C |
| 15 Jan 2026, 10:48 | 4.8 | 4.8 °C |
| 18 Dec 2025, 11:10 | 8.3 | 8.3 °C |
| 6 Nov 2025, 10:47 | 11 | 11 °C |
| 15 Oct 2025, 13:21 | 10.6 | 10.6 °C |
| 15 Sep 2025, 10:37 | 12.2 | 12.2 °C |
| 22 Aug 2025, 14:10 | 14.1 | 14.1 °C |
| 24 Jul 2025, 12:39 | 16.8 | 16.8 °C |
| 26 Jun 2025, 09:41 | 16.1 | 16.1 °C |
| 14 May 2025, 14:38 | 11.5 | 11.5 °C |
| 23 Apr 2025, 11:22 | 9.8 | 9.8 °C |
pH
code 0061
7.96
Sampled 9 Mar 2026, 8 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Mar 2026, 12:24 | 7.96 | 7.96 |
| 10 Feb 2026, 11:40 | 7.73 | 7.73 |
| 15 Jan 2026, 10:48 | 7.97 | 7.97 |
| 18 Dec 2025, 11:10 | 7.79 | 7.79 |
| 6 Nov 2025, 10:47 | 7.83 | 7.83 |
| 15 Oct 2025, 13:21 | 8.02 | 8.02 |
| 15 Sep 2025, 10:37 | 7.27 | 7.27 |
| 22 Aug 2025, 14:10 | 8.11 | 8.11 |
| 24 Jul 2025, 12:39 | 7.88 | 7.88 |
| 26 Jun 2025, 09:41 | 7.82 | 7.82 |
| 14 May 2025, 14:38 | 8.15 | 8.15 |
| 23 Apr 2025, 11:22 | 8.31 | 8.31 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 9 Mar 2026, 8 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Mar 2026, 12:24 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Feb 2026, 11:40 | 0.24 | 0.24 mg/l |
| 15 Jan 2026, 10:48 | 0.036 | 0.036 mg/l |
| 18 Dec 2025, 11:10 | 0.066 | 0.066 mg/l |
| 6 Nov 2025, 10:47 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Oct 2025, 13:21 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Sep 2025, 10:37 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Aug 2025, 14:10 | <0.03 | below 0.03 mg/l (not detected above this) |
| 24 Jul 2025, 12:39 | <0.03 | below 0.03 mg/l (not detected above this) |
| 26 Jun 2025, 09:41 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 May 2025, 14:38 | <0.03 | below 0.03 mg/l (not detected above this) |
| 23 Apr 2025, 11:22 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
4.98 mg/l
Sampled 9 Mar 2026, 8 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Mar 2026, 12:24 | 4.98 | 4.98 mg/l |
| 10 Feb 2026, 11:40 | 6.27 | 6.27 mg/l |
| 15 Jan 2026, 10:48 | 8.08 | 8.08 mg/l |
| 18 Dec 2025, 11:10 | 7.28 | 7.28 mg/l |
| 6 Nov 2025, 10:47 | 2.59 | 2.59 mg/l |
| 15 Oct 2025, 13:21 | 1.6 | 1.6 mg/l |
| 15 Sep 2025, 10:37 | 0.416 | 0.416 mg/l |
| 22 Aug 2025, 14:10 | 0.646 | 0.646 mg/l |
| 24 Jul 2025, 12:39 | 1.2 | 1.2 mg/l |
| 26 Jun 2025, 09:41 | 1.1 | 1.1 mg/l |
| 14 May 2025, 14:38 | 1.4 | 1.4 mg/l |
| 23 Apr 2025, 11:22 | 2.7 | 2.7 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.05 mg/l
Sampled 9 Mar 2026, 8 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Mar 2026, 12:24 | 0.05 | 0.05 mg/l |
| 10 Feb 2026, 11:40 | 0.072 | 0.072 mg/l |
| 15 Jan 2026, 10:48 | 0.037 | 0.037 mg/l |
| 18 Dec 2025, 11:10 | 0.056 | 0.056 mg/l |
| 6 Nov 2025, 10:47 | 0.03 | 0.03 mg/l |
| 15 Oct 2025, 13:21 | 0.044 | 0.044 mg/l |
| 15 Sep 2025, 10:37 | 0.077 | 0.077 mg/l |
| 22 Aug 2025, 14:10 | 0.11 | 0.11 mg/l |
| 24 Jul 2025, 12:39 | 0.18 | 0.18 mg/l |
| 26 Jun 2025, 09:41 | 0.21 | 0.21 mg/l |
| 14 May 2025, 14:38 | 0.065 | 0.065 mg/l |
| 23 Apr 2025, 11:22 | <0.01 | below 0.01 mg/l (not detected above this) |
Conductivity
at 25 °C · code 0077 · µS/cm
299 µS/cm
Sampled 9 Mar 2026, 8 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Mar 2026, 12:24 | 299 | 299 µS/cm |
| 10 Feb 2026, 11:40 | 269 | 269 µS/cm |
| 15 Jan 2026, 10:48 | 331 | 331 µS/cm |
| 18 Dec 2025, 11:10 | 286 | 286 µS/cm |
| 6 Nov 2025, 10:47 | 423 | 423 µS/cm |
| 15 Oct 2025, 13:21 | 474 | 474 µS/cm |
| 15 Sep 2025, 10:37 | 419 | 419 µS/cm |
| 22 Aug 2025, 14:10 | 470 | 470 µS/cm |
| 24 Jul 2025, 12:39 | 1513 | 1513 µS/cm |
| 26 Jun 2025, 09:41 | 1214 | 1214 µS/cm |
| 14 May 2025, 14:38 | 444 | 444 µS/cm |
| 23 Apr 2025, 11:22 | 391 | 391 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 | 12 | Apr 2025 – Mar 2026 | 95.2% 9 Mar 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 12 | Apr 2025 – Mar 2026 | 11 mg/l 9 Mar 2026 |
| Temperature of Water 0076 | River water | 12 | Apr 2025 – Mar 2026 | 9 °C 9 Mar 2026 |
| pH 0061 | River water | 12 | Apr 2025 – Mar 2026 | 7.96 9 Mar 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 12 | Apr 2025 – Mar 2026 | below 0.03 mg/l 9 Mar 2026 |
| Nitrate as N 0117 | River water | 12 | Apr 2025 – Mar 2026 | 4.98 mg/l 9 Mar 2026 |
| Orthophosphate, reactive as P 0180 | River water | 12 | Apr 2025 – Mar 2026 | 0.05 mg/l 9 Mar 2026 |
| Conductivity at 25 C 0077 | River water | 12 | Apr 2025 – Mar 2026 | 299 µS/cm 9 Mar 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 12 | Apr 2025 – Mar 2026 | 68 mg/l 9 Mar 2026 |
| Ammonia un-ionised as N 0119 | River water | 12 | Apr 2025 – Mar 2026 | below 0.00046 mg/l 9 Mar 2026 |
| Nitrite as N 0118 | River water | 12 | Apr 2025 – Mar 2026 | 0.019 mg/l 9 Mar 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 12 | Apr 2025 – Mar 2026 | 5 mg/l 9 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.