Old Coates Dyke at Carr Lane
EA name: OLD COATES DYKE AT CARR LANE (also listed as “OLD COATES DYKE (FIRBECK DYKE, MALTBY DYKE, HELLABY BROOK) - AT CARR LANE”)
Environment Agency sampling point MD-38689260 · 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 May 2026, 11:474 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
- 24 since 18 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 452230, 391830As published, to the nearest 10 m. Open in a map
- River, by its own name
- Old Coates Dyke
- River, by the map
- Not placedIts name gives Old Coates Dyke; the only line close by, 9 m away, is Maltby Dike and is not traced into it. The river map cannot say which watercourse this is.
- Next gauge downstream
- Not known
- Why it was sampled
- Monitoring (national agency policy) (24 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
90.4%
Sampled 22 May 2026, 4 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 May 2026, 11:47 | 90.4 | 90.4% |
| 30 Apr 2026, 09:14 | 107.1 | 107.1% |
| 4 Mar 2026, 13:09 | 96.9 | 96.9% |
| 12 Feb 2026, 10:40 | 96.7 | 96.7% |
| 16 Jan 2026, 09:51 | 98.6 | 98.6% |
| 3 Dec 2025, 11:39 | 95.8 | 95.8% |
| 17 Nov 2025, 11:31 | 94.4 | 94.4% |
| 31 Oct 2025, 11:38 | 86.6 | 86.6% |
| 4 Sep 2025, 08:12 | 79.4 | 79.4% |
| 11 Aug 2025, 08:03 | 87 | 87% |
| 17 Jul 2025, 09:29 | 81.5 | 81.5% |
| 4 Jun 2025, 12:37 | 85.7 | 85.7% |
| 19 May 2025, 10:59 | 90.2 | 90.2% |
| 30 Apr 2025, 09:52 | 91.7 | 91.7% |
| 14 Mar 2025, 11:31 | 97.2 | 97.2% |
| 6 Feb 2025, 12:59 | 99.3 | 99.3% |
| 20 Jan 2025, 10:13 | 95 | 95% |
| 3 Dec 2024, 13:13 | 93.5 | 93.5% |
| 21 Nov 2024, 09:45 | 89.2 | 89.2% |
| 18 Oct 2024, 07:33 | 84.6 | 84.6% |
| 18 Sep 2024, 08:59 | 86.9 | 86.9% |
| 23 Aug 2024, 09:03 | 82 | 82% |
| 19 Jul 2024, 08:42 | 88.1 | 88.1% |
| 18 Jun 2024, 08:14 | 90.5 | 90.5% |
Dissolved oxygen
as O2 · code 9924 · mg/l
9.33 mg/l
Sampled 22 May 2026, 4 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 May 2026, 11:47 | 9.33 | 9.33 mg/l |
| 30 Apr 2026, 09:14 | 12.2 | 12.2 mg/l |
| 4 Mar 2026, 13:09 | 11.3 | 11.3 mg/l |
| 12 Feb 2026, 10:40 | 11.7 | 11.7 mg/l |
| 16 Jan 2026, 09:51 | 12.3 | 12.3 mg/l |
| 3 Dec 2025, 11:39 | 11.6 | 11.6 mg/l |
| 17 Nov 2025, 11:31 | 11.1 | 11.1 mg/l |
| 31 Oct 2025, 11:38 | 9.55 | 9.55 mg/l |
| 4 Sep 2025, 08:12 | 8.22 | 8.22 mg/l |
| 11 Aug 2025, 08:03 | 9 | 9 mg/l |
| 17 Jul 2025, 09:29 | 8.25 | 8.25 mg/l |
| 4 Jun 2025, 12:37 | 9.22 | 9.22 mg/l |
| 19 May 2025, 10:59 | 9.9 | 9.9 mg/l |
| 30 Apr 2025, 09:52 | 10.1 | 10.1 mg/l |
| 14 Mar 2025, 11:31 | 12 | 12 mg/l |
| 6 Feb 2025, 12:59 | 12.6 | 12.6 mg/l |
| 20 Jan 2025, 10:13 | 11.9 | 11.9 mg/l |
| 3 Dec 2024, 13:13 | 11.2 | 11.2 mg/l |
| 21 Nov 2024, 09:45 | 11.9 | 11.9 mg/l |
| 18 Oct 2024, 07:33 | 9.46 | 9.46 mg/l |
| 18 Sep 2024, 08:59 | 9.47 | 9.47 mg/l |
| 23 Aug 2024, 09:03 | 8.43 | 8.43 mg/l |
| 19 Jul 2024, 08:42 | 8.98 | 8.98 mg/l |
| 18 Jun 2024, 08:14 | 9.71 | 9.71 mg/l |
Water temperature
code 0076 · °C
13.8 °C
Sampled 22 May 2026, 4 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 May 2026, 11:47 | 13.8 | 13.8 °C |
| 30 Apr 2026, 09:14 | 9.5 | 9.5 °C |
| 4 Mar 2026, 13:09 | 8.5 | 8.5 °C |
| 12 Feb 2026, 10:40 | 7.1 | 7.1 °C |
| 16 Jan 2026, 09:51 | 5.8 | 5.8 °C |
| 3 Dec 2025, 11:39 | 7.2 | 7.2 °C |
| 17 Nov 2025, 11:31 | 8.3 | 8.3 °C |
| 31 Oct 2025, 11:38 | 10.9 | 10.9 °C |
| 4 Sep 2025, 08:12 | 13.7 | 13.7 °C |
| 11 Aug 2025, 08:03 | 13.7 | 13.7 °C |
| 17 Jul 2025, 09:29 | 14.7 | 14.7 °C |
| 4 Jun 2025, 12:37 | 12 | 12 °C |
| 19 May 2025, 10:59 | 11.1 | 11.1 °C |
| 30 Apr 2025, 09:52 | 11.1 | 11.1 °C |
| 14 Mar 2025, 11:31 | 6.3 | 6.3 °C |
| 6 Feb 2025, 12:59 | 5.2 | 5.2 °C |
| 20 Jan 2025, 10:13 | 5.6 | 5.6 °C |
| 3 Dec 2024, 13:13 | 7.3 | 7.3 °C |
| 21 Nov 2024, 09:45 | 3.2 | 3.2 °C |
| 18 Oct 2024, 07:33 | 10.3 | 10.3 °C |
| 18 Sep 2024, 08:59 | 11.4 | 11.4 °C |
| 23 Aug 2024, 09:03 | 14 | 14 °C |
| 19 Jul 2024, 08:42 | 14.4 | 14.4 °C |
| 18 Jun 2024, 08:14 | 12.1 | 12.1 °C |
pH
code 0061
7.99
Sampled 22 May 2026, 4 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 May 2026, 11:47 | 7.99 | 7.99 |
| 30 Apr 2026, 09:14 | 7.96 | 7.96 |
| 4 Mar 2026, 13:09 | 7.87 | 7.87 |
| 12 Feb 2026, 10:40 | 7.66 | 7.66 |
| 16 Jan 2026, 09:51 | 7.95 | 7.95 |
| 3 Dec 2025, 11:39 | 7.85 | 7.85 |
| 17 Nov 2025, 11:31 | 7.87 | 7.87 |
| 31 Oct 2025, 11:38 | 7.8 | 7.8 |
| 4 Sep 2025, 08:12 | 7.91 | 7.91 |
| 11 Aug 2025, 08:03 | 8.14 | 8.14 |
| 17 Jul 2025, 09:29 | 7.66 | 7.66 |
| 4 Jun 2025, 12:37 | 8.04 | 8.04 |
| 19 May 2025, 10:59 | 8.19 | 8.19 |
| 30 Apr 2025, 09:52 | 7.94 | 7.94 |
| 14 Mar 2025, 11:31 | 8.04 | 8.04 |
| 6 Feb 2025, 12:59 | 7.79 | 7.79 |
| 20 Jan 2025, 10:13 | 7.88 | 7.88 |
| 3 Dec 2024, 13:13 | 7.83 | 7.83 |
| 21 Nov 2024, 09:45 | 7.8 | 7.8 |
| 18 Oct 2024, 07:33 | 7.8 | 7.8 |
| 18 Sep 2024, 08:59 | 7.92 | 7.92 |
| 23 Aug 2024, 09:03 | 7.92 | 7.92 |
| 19 Jul 2024, 08:42 | 7.7 | 7.7 |
| 18 Jun 2024, 08:14 | 7.89 | 7.89 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.036 mg/l
Sampled 22 May 2026, 4 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 May 2026, 11:47 | 0.036 | 0.036 mg/l |
| 30 Apr 2026, 09:14 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Mar 2026, 13:09 | 0.16 | 0.16 mg/l |
| 12 Feb 2026, 10:40 | 0.078 | 0.078 mg/l |
| 16 Jan 2026, 09:51 | 0.077 | 0.077 mg/l |
| 3 Dec 2025, 11:39 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Nov 2025, 11:31 | <0.03 | below 0.03 mg/l (not detected above this) |
| 31 Oct 2025, 11:38 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Sep 2025, 08:12 | 0.11 | 0.11 mg/l |
| 11 Aug 2025, 08:03 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Jul 2025, 09:29 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Jun 2025, 12:37 | 0.047 | 0.047 mg/l |
| 19 May 2025, 10:59 | <0.03 | below 0.03 mg/l (not detected above this) |
| 30 Apr 2025, 09:52 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Mar 2025, 11:31 | 0.035 | 0.035 mg/l |
| 6 Feb 2025, 12:59 | 0.059 | 0.059 mg/l |
| 20 Jan 2025, 10:13 | 0.1 | 0.1 mg/l |
| 3 Dec 2024, 13:13 | 0.069 | 0.069 mg/l |
| 21 Nov 2024, 09:45 | 0.03 | 0.03 mg/l |
| 18 Oct 2024, 07:33 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Sep 2024, 08:59 | <0.03 | below 0.03 mg/l (not detected above this) |
| 23 Aug 2024, 09:03 | 0.38 | 0.38 mg/l |
| 19 Jul 2024, 08:42 | 0.03 | 0.03 mg/l |
| 18 Jun 2024, 08:14 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
5.77 mg/l
Sampled 22 May 2026, 4 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 May 2026, 11:47 | 5.77 | 5.77 mg/l |
| 30 Apr 2026, 09:14 | 6.88 | 6.88 mg/l |
| 4 Mar 2026, 13:09 | 9.27 | 9.27 mg/l |
| 12 Feb 2026, 10:40 | 8.58 | 8.58 mg/l |
| 16 Jan 2026, 09:51 | 8.67 | 8.67 mg/l |
| 3 Dec 2025, 11:39 | 8.68 | 8.68 mg/l |
| 17 Nov 2025, 11:31 | 7.68 | 7.68 mg/l |
| 31 Oct 2025, 11:38 | 3.39 | 3.39 mg/l |
| 4 Sep 2025, 08:12 | 1.68 | 1.68 mg/l |
| 11 Aug 2025, 08:03 | 3.39 | 3.39 mg/l |
| 17 Jul 2025, 09:29 | 3.09 | 3.09 mg/l |
| 4 Jun 2025, 12:37 | 3.88 | 3.88 mg/l |
| 19 May 2025, 10:59 | 5.48 | 5.48 mg/l |
| 30 Apr 2025, 09:52 | 6.52 | 6.52 mg/l |
| 14 Mar 2025, 11:31 | 7.18 | 7.18 mg/l |
| 6 Feb 2025, 12:59 | 9.66 | 9.66 mg/l |
| 20 Jan 2025, 10:13 | 9.47 | 9.47 mg/l |
| 3 Dec 2024, 13:13 | 5.58 | 5.58 mg/l |
| 21 Nov 2024, 09:45 | 5.13 | 5.13 mg/l |
| 18 Oct 2024, 07:33 | 4.39 | 4.39 mg/l |
| 18 Sep 2024, 08:59 | 4.49 | 4.49 mg/l |
| 23 Aug 2024, 09:03 | 3.25 | 3.25 mg/l |
| 19 Jul 2024, 08:42 | 6.3 | 6.3 mg/l |
| 18 Jun 2024, 08:14 | 6.49 | 6.49 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.059 mg/l
Sampled 22 May 2026, 4 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 May 2026, 11:47 | 0.059 | 0.059 mg/l |
| 30 Apr 2026, 09:14 | 0.047 | 0.047 mg/l |
| 4 Mar 2026, 13:09 | 0.033 | 0.033 mg/l |
| 12 Feb 2026, 10:40 | 0.06 | 0.06 mg/l |
| 16 Jan 2026, 09:51 | 0.058 | 0.058 mg/l |
| 3 Dec 2025, 11:39 | 0.057 | 0.057 mg/l |
| 17 Nov 2025, 11:31 | 0.062 | 0.062 mg/l |
| 31 Oct 2025, 11:38 | 0.066 | 0.066 mg/l |
| 4 Sep 2025, 08:12 | 0.095 | 0.095 mg/l |
| 11 Aug 2025, 08:03 | 0.07 | 0.07 mg/l |
| 17 Jul 2025, 09:29 | 0.076 | 0.076 mg/l |
| 4 Jun 2025, 12:37 | 0.087 | 0.087 mg/l |
| 19 May 2025, 10:59 | 0.076 | 0.076 mg/l |
| 30 Apr 2025, 09:52 | 0.048 | 0.048 mg/l |
| 14 Mar 2025, 11:31 | 0.032 | 0.032 mg/l |
| 6 Feb 2025, 12:59 | 0.03 | 0.03 mg/l |
| 20 Jan 2025, 10:13 | 0.044 | 0.044 mg/l |
| 21 Nov 2024, 09:45 | 0.04 | 0.04 mg/l |
| 18 Oct 2024, 07:33 | 0.051 | 0.051 mg/l |
| 18 Sep 2024, 08:59 | 0.06 | 0.06 mg/l |
| 23 Aug 2024, 09:03 | 0.081 | 0.081 mg/l |
| 19 Jul 2024, 08:42 | 0.054 | 0.054 mg/l |
| 18 Jun 2024, 08:14 | 0.044 | 0.044 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
833 µS/cm
Sampled 22 May 2026, 4 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 22 May 2026, 11:47 | 833 | 833 µS/cm |
| 30 Apr 2026, 09:14 | 835 | 835 µS/cm |
| 4 Mar 2026, 13:09 | 798 | 798 µS/cm |
| 12 Feb 2026, 10:40 | 608 | 608 µS/cm |
| 16 Jan 2026, 09:51 | 1012 | 1012 µS/cm |
| 3 Dec 2025, 11:39 | 859 | 859 µS/cm |
| 17 Nov 2025, 11:31 | 753 | 753 µS/cm |
| 31 Oct 2025, 11:38 | 833 | 833 µS/cm |
| 4 Sep 2025, 08:12 | 700 | 700 µS/cm |
| 11 Aug 2025, 08:03 | 1350 | 1350 µS/cm |
| 17 Jul 2025, 09:29 | 814 | 814 µS/cm |
| 4 Jun 2025, 12:37 | 896 | 896 µS/cm |
| 19 May 2025, 10:59 | 1220 | 1220 µS/cm |
| 30 Apr 2025, 09:52 | 877 | 877 µS/cm |
| 14 Mar 2025, 11:31 | 842 | 842 µS/cm |
| 6 Feb 2025, 12:59 | 744 | 744 µS/cm |
| 20 Jan 2025, 10:13 | 759 | 759 µS/cm |
| 3 Dec 2024, 13:13 | 862 | 862 µS/cm |
| 21 Nov 2024, 09:45 | 1016 | 1016 µS/cm |
| 18 Oct 2024, 07:33 | 808 | 808 µS/cm |
| 18 Sep 2024, 08:59 | 853 | 853 µS/cm |
| 23 Aug 2024, 09:03 | 530 | 530 µS/cm |
| 19 Jul 2024, 08:42 | 815 | 815 µS/cm |
| 18 Jun 2024, 08:14 | 868 | 868 µS/cm |
Everything measured here
13 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 13 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 24 | Jun 2024 – May 2026 | 90.4% 22 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 24 | Jun 2024 – May 2026 | 9.33 mg/l 22 May 2026 |
| Temperature of Water 0076 | River water | 24 | Jun 2024 – May 2026 | 13.8 °C 22 May 2026 |
| pH 0061 | River water | 24 | Jun 2024 – May 2026 | 7.99 22 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 24 | Jun 2024 – May 2026 | 0.036 mg/l 22 May 2026 |
| Nitrate as N 0117 | River water | 24 | Jun 2024 – May 2026 | 5.77 mg/l 22 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 23 | Jun 2024 – May 2026 | 0.059 mg/l 22 May 2026 |
| Conductivity at 25 C 0077 | River water | 24 | Jun 2024 – May 2026 | 833 µS/cm 22 May 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 24 | Jun 2024 – May 2026 | 170 mg/l 22 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 24 | Jun 2024 – May 2026 | 0.00085 mg/l 22 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 23 | Jun 2024 – May 2026 | 1.1 mg/l 22 May 2026 |
| Nitrite as N 0118 | River water | 24 | Jun 2024 – May 2026 | 0.028 mg/l 22 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 24 | Jun 2024 – May 2026 | 5.8 mg/l 22 May 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.