Don at Rawmarsh Road Rotherham
EA name: DON AT RAWMARSH ROAD ROTHERHAM
Environment Agency sampling point NE-49301635 · 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
- 10 Jun 2026, 14:594 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 26 since 3 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 443164, 393771As published, to the nearest 1 m. Open in a map
- River, by its own name
- Don
- River, by the map
- River DonPlaced on the river its name gives, 1 m from the line.
- Next gauge downstream
- Kilnhurst Lower On the River Don · 7.3 km along the river
- Nearest gauge upstream
- Rotherham Forge Island On the River Don · 1.1 km along the river
- Why it was sampled
- Monitoring (national agency policy) (24 samples)
Environmental monitoring statutory (EU directives) (2 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
95.8%
Sampled 10 Jun 2026, 4 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Jun 2026, 14:59 | 95.8 | 95.8% |
| 14 May 2026, 11:33 | 98 | 98% |
| 9 Apr 2026, 12:33 | 98.2 | 98.2% |
| 9 Mar 2026, 13:37 | 98.8 | 98.8% |
| 12 Feb 2026, 11:04 | 98.4 | 98.4% |
| 5 Jan 2026, 11:27 | 100 | 100% |
| 2 Dec 2025, 13:54 | 99.3 | 99.3% |
| 28 Nov 2025, 09:16 | 98.7 | 98.7% |
| 4 Nov 2025, 13:41 | 94.7 | 94.7% |
| 8 Oct 2025, 11:57 | 95 | 95% |
| 19 Sep 2025, 11:37 | 93.8 | 93.8% |
| 29 Aug 2025, 13:04 | 91.5 | 91.5% |
| 4 Jul 2025, 13:00 | 91.2 | 91.2% |
| 19 Jun 2025, 13:01 | 96.2 | 96.2% |
| 23 May 2025, 13:06 | 94.9 | 94.9% |
| 4 Mar 2025, 13:02 | 97.6 | 97.6% |
| 13 Feb 2025, 12:31 | 98.2 | 98.2% |
| 20 Jan 2025, 10:52 | 99.4 | 99.4% |
| 2 Dec 2024, 13:07 | 96.2 | 96.2% |
| 18 Nov 2024, 12:56 | 92.7 | 92.7% |
| 23 Oct 2024, 09:47 | 94.8 | 94.8% |
| 16 Sep 2024, 13:42 | 94.7 | 94.7% |
| 27 Aug 2024, 13:11 | 91.2 | 91.2% |
| 17 Jul 2024, 12:51 | 95.1 | 95.1% |
Dissolved oxygen
as O2 · code 9924 · mg/l
9.68 mg/l
Sampled 10 Jun 2026, 4 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Jun 2026, 14:59 | 9.68 | 9.68 mg/l |
| 14 May 2026, 11:33 | 10.7 | 10.7 mg/l |
| 9 Apr 2026, 12:33 | 10.4 | 10.4 mg/l |
| 9 Mar 2026, 13:37 | 11.1 | 11.1 mg/l |
| 12 Feb 2026, 11:04 | 11.8 | 11.8 mg/l |
| 5 Jan 2026, 11:27 | 13.3 | 13.3 mg/l |
| 2 Dec 2025, 13:54 | 11.6 | 11.6 mg/l |
| 28 Nov 2025, 09:16 | 11.5 | 11.5 mg/l |
| 4 Nov 2025, 13:41 | 10.1 | 10.1 mg/l |
| 8 Oct 2025, 11:57 | 9.7 | 9.7 mg/l |
| 19 Sep 2025, 11:37 | 9.14 | 9.14 mg/l |
| 29 Aug 2025, 13:04 | 8.71 | 8.71 mg/l |
| 4 Jul 2025, 13:00 | 8.39 | 8.39 mg/l |
| 19 Jun 2025, 13:01 | 8.73 | 8.73 mg/l |
| 23 May 2025, 13:06 | 9.59 | 9.59 mg/l |
| 4 Mar 2025, 13:02 | 11.8 | 11.8 mg/l |
| 13 Feb 2025, 12:31 | 12.2 | 12.2 mg/l |
| 20 Jan 2025, 10:52 | 12.5 | 12.5 mg/l |
| 2 Dec 2024, 13:07 | 10.9 | 10.9 mg/l |
| 18 Nov 2024, 12:56 | 10.8 | 10.8 mg/l |
| 23 Oct 2024, 09:47 | 10.5 | 10.5 mg/l |
| 16 Sep 2024, 13:42 | 9.65 | 9.65 mg/l |
| 27 Aug 2024, 13:11 | 8.92 | 8.92 mg/l |
| 17 Jul 2024, 12:51 | 9.32 | 9.32 mg/l |
Water temperature
code 0076 · °C
14.8 °C
Sampled 10 Jun 2026, 4 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Jun 2026, 14:59 | 14.8 | 14.8 °C |
| 14 May 2026, 11:33 | 11.2 | 11.2 °C |
| 9 Apr 2026, 12:33 | 12.5 | 12.5 °C |
| 9 Mar 2026, 13:37 | 10 | 10 °C |
| 12 Feb 2026, 11:04 | 7.4 | 7.4 °C |
| 5 Jan 2026, 11:27 | 3.3 | 3.3 °C |
| 2 Dec 2025, 13:54 | 8.6 | 8.6 °C |
| 28 Nov 2025, 09:16 | 8.6 | 8.6 °C |
| 4 Nov 2025, 13:41 | 12.5 | 12.5 °C |
| 8 Oct 2025, 11:57 | 14.3 | 14.3 °C |
| 19 Sep 2025, 11:37 | 16.5 | 16.5 °C |
| 29 Aug 2025, 13:04 | 17.6 | 17.6 °C |
| 4 Jul 2025, 13:00 | 19.3 | 19.3 °C |
| 19 Jun 2025, 13:01 | 20 | 20 °C |
| 23 May 2025, 13:06 | 14.8 | 14.8 °C |
| 4 Mar 2025, 13:02 | 7.2 | 7.2 °C |
| 13 Feb 2025, 12:31 | 6 | 6 °C |
| 20 Jan 2025, 10:52 | 5.7 | 5.7 °C |
| 2 Dec 2024, 13:07 | 9.9 | 9.9 °C |
| 18 Nov 2024, 12:56 | 8.6 | 8.6 °C |
| 23 Oct 2024, 09:47 | 10.9 | 10.9 °C |
| 16 Sep 2024, 13:42 | 14.4 | 14.4 °C |
| 27 Aug 2024, 13:11 | 16.3 | 16.3 °C |
| 17 Jul 2024, 12:51 | 16.2 | 16.2 °C |
pH
code 0061
7.84
Sampled 10 Jun 2026, 4 months ago · 26 results banked
Every result (26)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Jun 2026, 14:59 | 7.84 | 7.84 |
| 14 May 2026, 11:33 | 7.87 | 7.87 |
| 9 Apr 2026, 12:33 | 7.73 | 7.73 |
| 9 Mar 2026, 13:37 | 7.68 | 7.68 |
| 12 Feb 2026, 11:04 | 7.6 | 7.6 |
| 5 Jan 2026, 11:27 | 7.76 | 7.76 |
| 2 Dec 2025, 13:54 | 7.8 | 7.8 |
| 28 Nov 2025, 09:16 | 7.82 | 7.82 |
| 4 Nov 2025, 13:41 | 7.57 | 7.57 |
| 8 Oct 2025, 11:57 | 7.58 | 7.58 |
| 19 Sep 2025, 11:37 | 7.92 | 7.92 |
| 29 Aug 2025, 13:04 | 7.85 | 7.85 |
| 4 Jul 2025, 13:00 | 7.4 | 7.4 |
| 19 Jun 2025, 13:01 | 7.4 | 7.4 |
| 23 May 2025, 13:06 | 7.66 | 7.66 |
| 4 Mar 2025, 13:02 | 7.9 | 7.9 |
| 13 Feb 2025, 12:31 | 7.81 | 7.81 |
| 20 Jan 2025, 10:52 | 7.73 | 7.73 |
| 2 Dec 2024, 13:07 | 7.56 | 7.56 |
| 18 Nov 2024, 12:56 | 7.74 | 7.74 |
| 23 Oct 2024, 09:47 | 7.58 | 7.58 |
| 16 Sep 2024, 13:42 | 7.5 | 7.5 |
| 27 Aug 2024, 13:11 | 7.51 | 7.51 |
| 17 Jul 2024, 12:51 | 7.6 | 7.6 |
| 12 Jan 2024, 14:04 | 7.65 | 7.65 |
| 3 Oct 2023, 09:47 | 7.54 | 7.54 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.19 mg/l
Sampled 10 Jun 2026, 4 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Jun 2026, 14:59 | 0.19 | 0.19 mg/l |
| 14 May 2026, 11:33 | 0.12 | 0.12 mg/l |
| 9 Apr 2026, 12:33 | 0.26 | 0.26 mg/l |
| 9 Mar 2026, 13:37 | 0.21 | 0.21 mg/l |
| 12 Feb 2026, 11:04 | 0.2 | 0.2 mg/l |
| 5 Jan 2026, 11:27 | 0.42 | 0.42 mg/l |
| 2 Dec 2025, 13:54 | 0.23 | 0.23 mg/l |
| 28 Nov 2025, 09:16 | 0.28 | 0.28 mg/l |
| 4 Nov 2025, 13:41 | 0.097 | 0.097 mg/l |
| 8 Oct 2025, 11:57 | 0.31 | 0.31 mg/l |
| 19 Sep 2025, 11:37 | 0.24 | 0.24 mg/l |
| 29 Aug 2025, 13:04 | 0.42 | 0.42 mg/l |
| 4 Jul 2025, 13:00 | 0.59 | 0.59 mg/l |
| 19 Jun 2025, 13:01 | 0.29 | 0.29 mg/l |
| 23 May 2025, 13:06 | 0.29 | 0.29 mg/l |
| 4 Mar 2025, 13:02 | 0.25 | 0.25 mg/l |
| 13 Feb 2025, 12:31 | 0.15 | 0.15 mg/l |
| 20 Jan 2025, 10:52 | 0.15 | 0.15 mg/l |
| 2 Dec 2024, 13:07 | 0.099 | 0.099 mg/l |
| 18 Nov 2024, 12:56 | 0.27 | 0.27 mg/l |
| 23 Oct 2024, 09:47 | 0.12 | 0.12 mg/l |
| 16 Sep 2024, 13:42 | 0.14 | 0.14 mg/l |
| 27 Aug 2024, 13:11 | 0.15 | 0.15 mg/l |
| 17 Jul 2024, 12:51 | 0.14 | 0.14 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
9.9 mg/l
Sampled 10 Jun 2026, 4 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Jun 2026, 14:59 | 9.9 | 9.9 mg/l |
| 14 May 2026, 11:33 | 7.43 | 7.43 mg/l |
| 9 Apr 2026, 12:33 | 8.03 | 8.03 mg/l |
| 9 Mar 2026, 13:37 | 7.83 | 7.83 mg/l |
| 12 Feb 2026, 11:04 | 3.86 | 3.86 mg/l |
| 5 Jan 2026, 11:27 | 8.86 | 8.86 mg/l |
| 2 Dec 2025, 13:54 | 4.96 | 4.96 mg/l |
| 28 Nov 2025, 09:16 | 7.93 | 7.93 mg/l |
| 4 Nov 2025, 13:41 | 8.66 | 8.66 mg/l |
| 8 Oct 2025, 11:57 | 9.82 | 9.82 mg/l |
| 19 Sep 2025, 11:37 | 8.02 | 8.02 mg/l |
| 29 Aug 2025, 13:04 | 10.9 | 10.9 mg/l |
| 4 Jul 2025, 13:00 | 9.81 | 9.81 mg/l |
| 19 Jun 2025, 13:01 | 11.9 | 11.9 mg/l |
| 23 May 2025, 13:06 | 11.9 | 11.9 mg/l |
| 4 Mar 2025, 13:02 | 6.24 | 6.24 mg/l |
| 13 Feb 2025, 12:31 | 6.46 | 6.46 mg/l |
| 20 Jan 2025, 10:52 | 7.13 | 7.13 mg/l |
| 2 Dec 2024, 13:07 | 7.56 | 7.56 mg/l |
| 18 Nov 2024, 12:56 | 11.9 | 11.9 mg/l |
| 23 Oct 2024, 09:47 | 7.26 | 7.26 mg/l |
| 16 Sep 2024, 13:42 | 10.9 | 10.9 mg/l |
| 27 Aug 2024, 13:11 | 10.9 | 10.9 mg/l |
| 17 Jul 2024, 12:51 | 5.55 | 5.55 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.19 mg/l
Sampled 10 Jun 2026, 4 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Jun 2026, 14:59 | 0.19 | 0.19 mg/l |
| 14 May 2026, 11:33 | 0.11 | 0.11 mg/l |
| 9 Apr 2026, 12:33 | 0.15 | 0.15 mg/l |
| 9 Mar 2026, 13:37 | 0.077 | 0.077 mg/l |
| 12 Feb 2026, 11:04 | 0.065 | 0.065 mg/l |
| 5 Jan 2026, 11:27 | 0.087 | 0.087 mg/l |
| 2 Dec 2025, 13:54 | 0.072 | 0.072 mg/l |
| 28 Nov 2025, 09:16 | 0.054 | 0.054 mg/l |
| 4 Nov 2025, 13:41 | 0.096 | 0.096 mg/l |
| 8 Oct 2025, 11:57 | 0.069 | 0.069 mg/l |
| 19 Sep 2025, 11:37 | 0.078 | 0.078 mg/l |
| 29 Aug 2025, 13:04 | 0.088 | 0.088 mg/l |
| 4 Jul 2025, 13:00 | 0.38 | 0.38 mg/l |
| 19 Jun 2025, 13:01 | 0.47 | 0.47 mg/l |
| 23 May 2025, 13:06 | 0.47 | 0.47 mg/l |
| 4 Mar 2025, 13:02 | 0.1 | 0.1 mg/l |
| 13 Feb 2025, 12:31 | 0.12 | 0.12 mg/l |
| 20 Jan 2025, 10:52 | 0.16 | 0.16 mg/l |
| 2 Dec 2024, 13:07 | 0.3 | 0.3 mg/l |
| 18 Nov 2024, 12:56 | 0.65 | 0.65 mg/l |
| 23 Oct 2024, 09:47 | 0.22 | 0.22 mg/l |
| 16 Sep 2024, 13:42 | 0.66 | 0.66 mg/l |
| 27 Aug 2024, 13:11 | 0.79 | 0.79 mg/l |
| 17 Jul 2024, 12:51 | 0.35 | 0.35 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
696 µS/cm
Sampled 10 Jun 2026, 4 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 10 Jun 2026, 14:59 | 696 | 696 µS/cm |
| 14 May 2026, 11:33 | 706 | 706 µS/cm |
| 9 Apr 2026, 12:33 | 718 | 718 µS/cm |
| 9 Mar 2026, 13:37 | 642 | 642 µS/cm |
| 12 Feb 2026, 11:04 | 377 | 377 µS/cm |
| 5 Jan 2026, 11:27 | 656 | 656 µS/cm |
| 2 Dec 2025, 13:54 | 431 | 431 µS/cm |
| 28 Nov 2025, 09:16 | 616 | 616 µS/cm |
| 4 Nov 2025, 13:41 | 633 | 633 µS/cm |
| 8 Oct 2025, 11:57 | 662 | 662 µS/cm |
| 19 Sep 2025, 11:37 | 662 | 662 µS/cm |
| 29 Aug 2025, 13:04 | 882 | 882 µS/cm |
| 4 Jul 2025, 13:00 | 777 | 777 µS/cm |
| 19 Jun 2025, 13:01 | 807 | 807 µS/cm |
| 23 May 2025, 13:06 | 815 | 815 µS/cm |
| 4 Mar 2025, 13:02 | 677 | 677 µS/cm |
| 13 Feb 2025, 12:31 | 608 | 608 µS/cm |
| 20 Jan 2025, 10:52 | 594 | 594 µS/cm |
| 2 Dec 2024, 13:07 | 668 | 668 µS/cm |
| 18 Nov 2024, 12:56 | 725 | 725 µS/cm |
| 23 Oct 2024, 09:47 | 528 | 528 µS/cm |
| 16 Sep 2024, 13:42 | 605 | 605 µS/cm |
| 27 Aug 2024, 13:11 | 662 | 662 µS/cm |
| 17 Jul 2024, 12:51 | 465 | 465 µS/cm |
Everything measured here
21 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 21 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 24 | Jul 2024 – Jun 2026 | 95.8% 10 Jun 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 24 | Jul 2024 – Jun 2026 | 9.68 mg/l 10 Jun 2026 |
| Temperature of Water 0076 | River water | 24 | Jul 2024 – Jun 2026 | 14.8 °C 10 Jun 2026 |
| pH 0061 | River water | 26 | Oct 2023 – Jun 2026 | 7.84 10 Jun 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 24 | Jul 2024 – Jun 2026 | 0.19 mg/l 10 Jun 2026 |
| Nitrate as N 0117 | River water | 24 | Jul 2024 – Jun 2026 | 9.9 mg/l 10 Jun 2026 |
| Orthophosphate, reactive as P 0180 | River water | 24 | Jul 2024 – Jun 2026 | 0.19 mg/l 10 Jun 2026 |
| Conductivity at 25 C 0077 | River water | 24 | Jul 2024 – Jun 2026 | 696 µS/cm 10 Jun 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 24 | Jul 2024 – Jun 2026 | 90 mg/l 10 Jun 2026 |
| Ammonia un-ionised as N 0119 | River water | 24 | Jul 2024 – Jun 2026 | 0.00343 mg/l 10 Jun 2026 |
| BOD : 5 Day ATU 0085 | River water | 24 | Jul 2024 – Jun 2026 | 1.5 mg/l 10 Jun 2026 |
| Cadmium, Dissolved 0106 | River water | 2 | Oct 2023 – Jan 2024 | 0.052 µg/l 12 Jan 2024 |
| Calcium, Dissolved 0239 | River water | 2 | Oct 2023 – Jan 2024 | 51 mg/l 12 Jan 2024 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 2 | Oct 2023 – Jan 2024 | 4.7 mg/l 12 Jan 2024 |
| Lead : BLM Bioavailable 3377 | River water | 2 | Oct 2023 – Jan 2024 | 0.11 µg/l 12 Jan 2024 |
| Lead, Dissolved 0052 | River water | 2 | Oct 2023 – Jan 2024 | 0.53 µg/l 12 Jan 2024 |
| Magnesium, Dissolved 0235 | River water | 2 | Oct 2023 – Jan 2024 | 20 mg/l 12 Jan 2024 |
| Nickel : BLM Bioavailable 3878 | River water | 2 | Oct 2023 – Jan 2024 | 1.9 µg/l 12 Jan 2024 |
| Nickel, Dissolved 3410 | River water | 2 | Oct 2023 – Jan 2024 | 6.1 µg/l 12 Jan 2024 |
| Nitrite as N 0118 | River water | 24 | Jul 2024 – Jun 2026 | 0.1 mg/l 10 Jun 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 24 | Jul 2024 – Jun 2026 | 10 mg/l 10 Jun 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.