Royles Brook downstream of Heys Street Overflow
EA name: ROYLES BROOK D/S HEYS STREET OVERFLOW
Environment Agency sampling point NW-88003912 · 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
- 15 Dec 2025, 11:4110 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
- 22 since 16 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 334000, 443345As published, to the nearest 1 m. Open in a map
- River, by its own name
- Royles Brook
- River, by the map
- Royles BrookPlaced on the river its name gives, 18 m from the line.
- Next gauge downstream
- Fleetwood On the Lune And Wyre · 9.2 km along the river (the path rests on a repair to the map)
- Why it was sampled
- Monitoring (national agency policy) (22 samples)
1 visit found no water to sample (recorded as “No flow”).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
63.8%
Sampled 15 Dec 2025, 10 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Dec 2025, 11:41 | 63.8 | 63.8% |
| 4 Dec 2025, 10:38 | 58.6 | 58.6% |
| 24 Nov 2025, 09:54 | 64.9 | 64.9% |
| 3 Nov 2025, 11:37 | 67.1 | 67.1% |
| 5 Mar 2025, 10:01 | 33.6 | 33.6% |
| 4 Feb 2025, 09:43 | 44.7 | 44.7% |
| 21 Jan 2025, 10:17 | 43.2 | 43.2% |
| 12 Dec 2024, 10:40 | 43.5 | 43.5% |
| 19 Nov 2024, 11:33 | 28.1 | 28.1% |
| 15 Oct 2024, 09:59 | 22.4 | 22.4% |
| 17 Sep 2024, 11:16 | 24.1 | 24.1% |
| 22 Jul 2024, 09:43 | 39.7 | 39.7% |
| 21 Jun 2024, 13:27 | 6.5 | 6.5% |
| 22 May 2024, 10:13 | 33.1 | 33.1% |
| 18 Apr 2024, 10:53 | 52.7 | 52.7% |
| 18 Mar 2024, 11:35 | 73.7 | 73.7% |
| 19 Feb 2024, 10:30 | 52.4 | 52.4% |
| 31 Jan 2024, 13:23 | 55.7 | 55.7% |
| 5 Dec 2023, 12:36 | 71.9 | 71.9% |
| 20 Nov 2023, 11:04 | 39.3 | 39.3% |
| 16 Oct 2023, 10:42 | 41.6 | 41.6% |
Dissolved oxygen
as O2 · code 9924 · mg/l
7.29 mg/l
Sampled 15 Dec 2025, 10 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Dec 2025, 11:41 | 7.29 | 7.29 mg/l |
| 4 Dec 2025, 10:38 | 7.02 | 7.02 mg/l |
| 24 Nov 2025, 09:54 | 7.71 | 7.71 mg/l |
| 3 Nov 2025, 11:37 | 7.22 | 7.22 mg/l |
| 5 Mar 2025, 10:01 | 4.15 | 4.15 mg/l |
| 4 Feb 2025, 09:43 | 5.43 | 5.43 mg/l |
| 21 Jan 2025, 10:17 | 5.36 | 5.36 mg/l |
| 12 Dec 2024, 10:40 | 5.34 | 5.34 mg/l |
| 19 Nov 2024, 11:33 | 3.44 | 3.44 mg/l |
| 15 Oct 2024, 09:59 | 2.52 | 2.52 mg/l |
| 17 Sep 2024, 11:16 | 2.48 | 2.48 mg/l |
| 22 Jul 2024, 09:43 | 3.92 | 3.92 mg/l |
| 21 Jun 2024, 13:27 | 0.648 | 0.648 mg/l |
| 22 May 2024, 10:13 | 3.4 | 3.4 mg/l |
| 18 Apr 2024, 10:53 | 6.02 | 6.02 mg/l |
| 18 Mar 2024, 11:35 | 8.32 | 8.32 mg/l |
| 19 Feb 2024, 10:30 | 6.06 | 6.06 mg/l |
| 31 Jan 2024, 13:23 | 6.8 | 6.8 mg/l |
| 5 Dec 2023, 12:36 | 8.89 | 8.89 mg/l |
| 20 Nov 2023, 11:04 | 4.38 | 4.38 mg/l |
| 16 Oct 2023, 10:42 | 4.7 | 4.7 mg/l |
Water temperature
code 0076 · °C
9.4 °C
Sampled 15 Dec 2025, 10 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Dec 2025, 11:41 | 9.4 | 9.4 °C |
| 4 Dec 2025, 10:38 | 7.5 | 7.5 °C |
| 24 Nov 2025, 09:54 | 7.8 | 7.8 °C |
| 3 Nov 2025, 11:37 | 12 | 12 °C |
| 5 Mar 2025, 10:01 | 6.3 | 6.3 °C |
| 4 Feb 2025, 09:43 | 6.9 | 6.9 °C |
| 21 Jan 2025, 10:17 | 6.1 | 6.1 °C |
| 12 Dec 2024, 10:40 | 6.5 | 6.5 °C |
| 19 Nov 2024, 11:33 | 6.6 | 6.6 °C |
| 15 Oct 2024, 09:59 | 10 | 10 °C |
| 17 Sep 2024, 11:16 | 13.9 | 13.9 °C |
| 22 Jul 2024, 09:43 | 15.8 | 15.8 °C |
| 21 Jun 2024, 13:27 | 15.4 | 15.4 °C |
| 22 May 2024, 10:13 | 14.1 | 14.1 °C |
| 18 Apr 2024, 10:53 | 9.4 | 9.4 °C |
| 18 Mar 2024, 11:35 | 9.9 | 9.9 °C |
| 19 Feb 2024, 10:30 | 8.9 | 8.9 °C |
| 31 Jan 2024, 13:23 | 6.7 | 6.7 °C |
| 5 Dec 2023, 12:36 | 6.2 | 6.2 °C |
| 20 Nov 2023, 11:04 | 10.5 | 10.5 °C |
| 16 Oct 2023, 10:42 | 9.9 | 9.9 °C |
pH
code 0061
7.25
Sampled 15 Dec 2025, 10 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Dec 2025, 11:41 | 7.25 | 7.25 |
| 4 Dec 2025, 10:38 | 7.31 | 7.31 |
| 24 Nov 2025, 09:54 | 7.19 | 7.19 |
| 3 Nov 2025, 11:37 | 7.25 | 7.25 |
| 5 Mar 2025, 10:01 | 7.51 | 7.51 |
| 4 Feb 2025, 09:43 | 7.38 | 7.38 |
| 21 Jan 2025, 10:17 | 7.17 | 7.17 |
| 12 Dec 2024, 10:40 | 7.37 | 7.37 |
| 19 Nov 2024, 11:33 | 7.39 | 7.39 |
| 15 Oct 2024, 09:59 | 7.43 | 7.43 |
| 17 Sep 2024, 11:16 | 7.76 | 7.76 |
| 22 Jul 2024, 09:43 | 7.58 | 7.58 |
| 21 Jun 2024, 13:27 | 7.64 | 7.64 |
| 22 May 2024, 10:13 | 7.57 | 7.57 |
| 18 Apr 2024, 10:53 | 7.49 | 7.49 |
| 18 Mar 2024, 11:35 | 7.31 | 7.31 |
| 19 Feb 2024, 10:30 | 7.3 | 7.3 |
| 31 Jan 2024, 13:23 | 7.27 | 7.27 |
| 5 Dec 2023, 12:36 | 7.36 | 7.36 |
| 20 Nov 2023, 11:04 | 7.1 | 7.1 |
| 16 Oct 2023, 10:42 | 7.46 | 7.46 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.15 mg/l
Sampled 15 Dec 2025, 10 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Dec 2025, 11:41 | 0.15 | 0.15 mg/l |
| 4 Dec 2025, 10:38 | 0.33 | 0.33 mg/l |
| 24 Nov 2025, 09:54 | 0.19 | 0.19 mg/l |
| 3 Nov 2025, 11:37 | 0.16 | 0.16 mg/l |
| 5 Mar 2025, 10:01 | 1.1 | 1.1 mg/l |
| 4 Feb 2025, 09:43 | 0.52 | 0.52 mg/l |
| 21 Jan 2025, 10:17 | 0.88 | 0.88 mg/l |
| 12 Dec 2024, 10:40 | 0.61 | 0.61 mg/l |
| 19 Nov 2024, 11:33 | 1 | 1 mg/l |
| 15 Oct 2024, 09:59 | 1 | 1 mg/l |
| 17 Sep 2024, 11:16 | 0.45 | 0.45 mg/l |
| 22 Jul 2024, 09:43 | 3 | 3 mg/l |
| 21 Jun 2024, 13:27 | 4.4 | 4.4 mg/l |
| 22 May 2024, 10:13 | 3.5 | 3.5 mg/l |
| 18 Apr 2024, 10:53 | 0.51 | 0.51 mg/l |
| 18 Mar 2024, 11:35 | 0.19 | 0.19 mg/l |
| 19 Feb 2024, 10:30 | 0.24 | 0.24 mg/l |
| 5 Dec 2023, 12:36 | 0.25 | 0.25 mg/l |
| 20 Nov 2023, 11:04 | 0.16 | 0.16 mg/l |
| 16 Oct 2023, 10:42 | 0.39 | 0.39 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.549 mg/l
Sampled 15 Dec 2025, 10 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Dec 2025, 11:41 | 0.549 | 0.549 mg/l |
| 4 Dec 2025, 10:38 | 0.821 | 0.821 mg/l |
| 24 Nov 2025, 09:54 | 0.742 | 0.742 mg/l |
| 3 Nov 2025, 11:37 | 0.697 | 0.697 mg/l |
| 5 Mar 2025, 10:01 | 0.295 | 0.295 mg/l |
| 4 Feb 2025, 09:43 | 0.498 | 0.498 mg/l |
| 21 Jan 2025, 10:17 | 0.83 | 0.83 mg/l |
| 12 Dec 2024, 10:40 | 0.317 | 0.317 mg/l |
| 19 Nov 2024, 11:33 | 0.172 | 0.172 mg/l |
| 15 Oct 2024, 09:59 | 0.193 | 0.193 mg/l |
| 17 Sep 2024, 11:16 | 0.462 | 0.462 mg/l |
| 22 Jul 2024, 09:43 | 0.192 | 0.192 mg/l |
| 21 Jun 2024, 13:27 | 0.186 | 0.186 mg/l |
| 22 May 2024, 10:13 | 0.08 | 0.08 mg/l |
| 18 Apr 2024, 10:53 | 0.511 | 0.511 mg/l |
| 18 Mar 2024, 11:35 | 0.503 | 0.503 mg/l |
| 19 Feb 2024, 10:30 | 0.694 | 0.694 mg/l |
| 31 Jan 2024, 13:23 | 0.788 | 0.788 mg/l |
| 5 Dec 2023, 12:36 | 0.63 | 0.63 mg/l |
| 20 Nov 2023, 11:04 | 0.42 | 0.42 mg/l |
| 16 Oct 2023, 10:42 | 0.167 | 0.167 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.13 mg/l
Sampled 15 Dec 2025, 10 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Dec 2025, 11:41 | 0.13 | 0.13 mg/l |
| 4 Dec 2025, 10:38 | 0.15 | 0.15 mg/l |
| 24 Nov 2025, 09:54 | 0.16 | 0.16 mg/l |
| 3 Nov 2025, 11:37 | 0.13 | 0.13 mg/l |
| 5 Mar 2025, 10:01 | 0.16 | 0.16 mg/l |
| 4 Feb 2025, 09:43 | 0.18 | 0.18 mg/l |
| 21 Jan 2025, 10:17 | 0.21 | 0.21 mg/l |
| 12 Dec 2024, 10:40 | 0.2 | 0.2 mg/l |
| 19 Nov 2024, 11:33 | 0.24 | 0.24 mg/l |
| 15 Oct 2024, 09:59 | 0.031 | 0.031 mg/l |
| 17 Sep 2024, 11:16 | 0.25 | 0.25 mg/l |
| 22 Jul 2024, 09:43 | 0.68 | 0.68 mg/l |
| 21 Jun 2024, 13:27 | 0.21 | 0.21 mg/l |
| 22 May 2024, 10:13 | 0.098 | 0.098 mg/l |
| 18 Apr 2024, 10:53 | 0.04 | 0.04 mg/l |
| 18 Mar 2024, 11:35 | 0.18 | 0.18 mg/l |
| 19 Feb 2024, 10:30 | 0.13 | 0.13 mg/l |
| 31 Jan 2024, 13:23 | 0.14 | 0.14 mg/l |
| 5 Dec 2023, 12:36 | 0.06 | 0.06 mg/l |
| 20 Nov 2023, 11:04 | 0.15 | 0.15 mg/l |
| 16 Oct 2023, 10:42 | 0.24 | 0.24 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
374 µS/cm
Sampled 15 Dec 2025, 10 months ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Dec 2025, 11:41 | 374 | 374 µS/cm |
| 4 Dec 2025, 10:38 | 568 | 568 µS/cm |
| 24 Nov 2025, 09:54 | 518 | 518 µS/cm |
| 3 Nov 2025, 11:37 | 370 | 370 µS/cm |
| 5 Mar 2025, 10:01 | 838 | 838 µS/cm |
| 4 Feb 2025, 09:43 | 810 | 810 µS/cm |
| 21 Jan 2025, 10:17 | 802 | 802 µS/cm |
| 12 Dec 2024, 10:40 | 711 | 711 µS/cm |
| 19 Nov 2024, 11:33 | 659 | 659 µS/cm |
| 15 Oct 2024, 09:59 | 650 | 650 µS/cm |
| 17 Sep 2024, 11:16 | 567 | 567 µS/cm |
| 22 Jul 2024, 09:43 | 525 | 525 µS/cm |
| 21 Jun 2024, 13:27 | 585 | 585 µS/cm |
| 22 May 2024, 10:13 | 674 | 674 µS/cm |
| 18 Apr 2024, 10:53 | 685 | 685 µS/cm |
| 18 Mar 2024, 11:35 | 490 | 490 µS/cm |
| 19 Feb 2024, 10:30 | 604 | 604 µS/cm |
| 31 Jan 2024, 13:23 | 620 | 620 µS/cm |
| 5 Dec 2023, 12:36 | 678 | 678 µS/cm |
| 20 Nov 2023, 11:04 | 506 | 506 µS/cm |
| 16 Oct 2023, 10:42 | 614 | 614 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 | 21 | Oct 2023 – Dec 2025 | 63.8% 15 Dec 2025 |
| Oxygen, Dissolved as O2 9924 | River water | 21 | Oct 2023 – Dec 2025 | 7.29 mg/l 15 Dec 2025 |
| Temperature of Water 0076 | River water | 21 | Oct 2023 – Dec 2025 | 9.4 °C 15 Dec 2025 |
| pH 0061 | River water | 21 | Oct 2023 – Dec 2025 | 7.25 15 Dec 2025 |
| Ammoniacal Nitrogen as N 0111 | River water | 20 | Oct 2023 – Dec 2025 | 0.15 mg/l 15 Dec 2025 |
| Nitrate as N 0117 | River water | 21 | Oct 2023 – Dec 2025 | 0.549 mg/l 15 Dec 2025 |
| Orthophosphate, reactive as P 0180 | River water | 21 | Oct 2023 – Dec 2025 | 0.13 mg/l 15 Dec 2025 |
| Conductivity at 25 C 0077 | River water | 21 | Oct 2023 – Dec 2025 | 374 µS/cm 15 Dec 2025 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 21 | Oct 2023 – Dec 2025 | 110 mg/l 15 Dec 2025 |
| Ammonia un-ionised as N 0119 | River water | 20 | Oct 2023 – Dec 2025 | 0.00047 mg/l 15 Dec 2025 |
| BOD : 5 Day ATU 0085 | River water | 16 | Feb 2024 – Dec 2025 | 1.6 mg/l 4 Dec 2025 |
| Nitrite as N 0118 | River water | 21 | Oct 2023 – Dec 2025 | 0.011 mg/l 15 Dec 2025 |
| Nitrogen, Total Oxidised as N 0116 | River water | 21 | Oct 2023 – Dec 2025 | 0.56 mg/l 15 Dec 2025 |
| No flow /No sample 7668 | River water | 1 | Aug 2024 – Aug 2024 | No flow/discharge at sampling point 21 Aug 2024 |
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.