Marske Beck downstream of Helwith Bank Spring
EA name: MARSKE BECK D/S HELWITH BANK SPRING
Environment Agency sampling point NE-49905250 · 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
- 17 Aug 2026, 10:2445 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 16 since 28 Jan 2025 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 408081, 502820As published, to the nearest 1 m. Open in a map
- River, by its own name
- Marske Beck
- River, by the map
- Marske BeckPlaced on the river its name gives, 6 m from the line.
- Next gauge downstream
- Richmond Lownthwaite Bridge On the River Swale · 10 km along the river
- Why it was sampled
- Monitoring (national agency policy) (13 samples)
Planned investigation (local monitoring) (3 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
107.2%
Sampled 17 Aug 2026, 45 days ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Aug 2026, 10:24 | 107.2 | 107.2% |
| 6 Jul 2026, 10:13 | 104.6 | 104.6% |
| 22 Jun 2026, 10:31 | 101.5 | 101.5% |
| 20 May 2026, 15:29 | 106.5 | 106.5% |
| 27 Apr 2026, 10:23 | 105.4 | 105.4% |
| 3 Mar 2026, 16:23 | 96.4 | 96.4% |
| 16 Dec 2025, 10:36 | 98.2 | 98.2% |
| 10 Nov 2025, 09:57 | 99.8 | 99.8% |
| 8 Oct 2025, 09:55 | 96.9 | 96.9% |
| 2 Sep 2025, 10:00 | 108.6 | 108.6% |
| 5 Aug 2025, 10:16 | 109.9 | 109.9% |
| 4 Jun 2025, 10:11 | 110.1 | 110.1% |
| 2 May 2025, 09:53 | 106 | 106% |
| 9 Apr 2025, 10:23 | 100.2 | 100.2% |
| 20 Mar 2025, 09:54 | 102.7 | 102.7% |
| 28 Jan 2025, 14:40 | 98.3 | 98.3% |
Water temperature
code 0076 · °C
13.1 °C
Sampled 17 Aug 2026, 45 days ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Aug 2026, 10:24 | 13.1 | 13.1 °C |
| 6 Jul 2026, 10:13 | 14.6 | 14.6 °C |
| 22 Jun 2026, 10:31 | 12.9 | 12.9 °C |
| 20 May 2026, 15:29 | 11.1 | 11.1 °C |
| 27 Apr 2026, 10:23 | 10.3 | 10.3 °C |
| 3 Mar 2026, 16:23 | 6.7 | 6.7 °C |
| 16 Dec 2025, 10:36 | 7.2 | 7.2 °C |
| 10 Nov 2025, 09:57 | 9.4 | 9.4 °C |
| 8 Oct 2025, 09:55 | 9.8 | 9.8 °C |
| 2 Sep 2025, 10:00 | 12.8 | 12.8 °C |
| 5 Aug 2025, 10:16 | 13.3 | 13.3 °C |
| 4 Jun 2025, 10:11 | 10.9 | 10.9 °C |
| 2 May 2025, 09:53 | 10.7 | 10.7 °C |
| 9 Apr 2025, 10:23 | 7.2 | 7.2 °C |
| 20 Mar 2025, 09:54 | 5.5 | 5.5 °C |
| 28 Jan 2025, 14:40 | 6.2 | 6.2 °C |
pH
code 0061
8.5
Sampled 17 Aug 2026, 45 days ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Aug 2026, 10:24 | 8.5 | 8.5 |
| 6 Jul 2026, 10:13 | 8.5 | 8.5 |
| 22 Jun 2026, 10:31 | 8.3 | 8.3 |
| 20 May 2026, 15:29 | 8 | 8 |
| 27 Apr 2026, 10:23 | 8.4 | 8.4 |
| 3 Mar 2026, 16:23 | 7.9 | 7.9 |
| 16 Dec 2025, 10:36 | 7.8 | 7.8 |
| 10 Nov 2025, 09:57 | 7.8 | 7.8 |
| 8 Oct 2025, 09:55 | 8.33 | 8.33 |
| 2 Sep 2025, 10:00 | 8.3 | 8.3 |
| 5 Aug 2025, 10:16 | 8.4 | 8.4 |
| 4 Jun 2025, 10:11 | 8.5 | 8.5 |
| 2 May 2025, 09:53 | 8.5 | 8.5 |
| 9 Apr 2025, 10:23 | 8.4 | 8.4 |
| 20 Mar 2025, 09:54 | 8.3 | 8.3 |
| 28 Jan 2025, 14:40 | 7.8 | 7.8 |
Conductivity
at 25 °C · code 0077 · µS/cm
344 µS/cm
Sampled 17 Aug 2026, 45 days ago · 16 results banked
Every result (16)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Aug 2026, 10:24 | 344 | 344 µS/cm |
| 6 Jul 2026, 10:13 | 325 | 325 µS/cm |
| 22 Jun 2026, 10:31 | 298 | 298 µS/cm |
| 20 May 2026, 15:29 | 220 | 220 µS/cm |
| 27 Apr 2026, 10:23 | 309 | 309 µS/cm |
| 3 Mar 2026, 16:23 | 270 | 270 µS/cm |
| 16 Dec 2025, 10:36 | 188 | 188 µS/cm |
| 10 Nov 2025, 09:57 | 188 | 188 µS/cm |
| 8 Oct 2025, 09:55 | 276 | 276 µS/cm |
| 2 Sep 2025, 10:00 | 346 | 346 µS/cm |
| 5 Aug 2025, 10:16 | 329 | 329 µS/cm |
| 4 Jun 2025, 10:11 | 336 | 336 µS/cm |
| 2 May 2025, 09:53 | 325 | 325 µS/cm |
| 9 Apr 2025, 10:23 | 345 | 345 µS/cm |
| 20 Mar 2025, 09:54 | 303 | 303 µS/cm |
| 28 Jan 2025, 14:40 | 200 | 200 µS/cm |
Everything measured here
33 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 33 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 16 | Jan 2025 – Aug 2026 | 107.2% 17 Aug 2026 |
| Temperature of Water 0076 | River water | 16 | Jan 2025 – Aug 2026 | 13.1 °C 17 Aug 2026 |
| pH 0061 | River water | 16 | Jan 2025 – Aug 2026 | 8.5 17 Aug 2026 |
| Conductivity at 25 C 0077 | River water | 16 | Jan 2025 – Aug 2026 | 344 µS/cm 17 Aug 2026 |
| Barium, Dissolved 9446 | River water | 15 | Jan 2025 – Aug 2026 | 150 µg/l 17 Aug 2026 |
| Boron, Dissolved 9447 | River water | 16 | Jan 2025 – Aug 2026 | below 100 µg/l 17 Aug 2026 |
| Cadmium 0108 | River water | 16 | Jan 2025 – Aug 2026 | 0.19 µg/l 17 Aug 2026 |
| Cadmium, Dissolved 0106 | River water | 16 | Jan 2025 – Aug 2026 | 0.15 µg/l 17 Aug 2026 |
| Calcium 0241 | River water | 1 | Apr 2025 – Apr 2025 | 49 mg/l 9 Apr 2025 |
| Calcium, Dissolved 0239 | River water | 15 | Jan 2025 – Aug 2026 | 52 mg/l 17 Aug 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 15 | Jan 2025 – Aug 2026 | 1.4 mg/l 17 Aug 2026 |
| Copper 6452 | River water | 16 | Jan 2025 – Aug 2026 | below 1 µg/l 17 Aug 2026 |
| Copper, Dissolved 6450 | River water | 16 | Jan 2025 – Aug 2026 | below 1 µg/l 17 Aug 2026 |
| Hardness, Total as CaCO3 0158 | River water | 16 | Jan 2025 – Aug 2026 | 167 mg/l 17 Aug 2026 |
| Iron 6051 | River water | 1 | Apr 2025 – Apr 2025 | 63 µg/l 9 Apr 2025 |
| Iron, Dissolved 6460 | River water | 16 | Jan 2025 – Aug 2026 | below 30 µg/l 17 Aug 2026 |
| Lead 0050 | River water | 16 | Jan 2025 – Aug 2026 | 2.9 µg/l 17 Aug 2026 |
| Lead, Dissolved 0052 | River water | 16 | Jan 2025 – Aug 2026 | below 2 µg/l 17 Aug 2026 |
| Lithium, Dissolved 4201 | River water | 16 | Jan 2025 – Aug 2026 | below 100 µg/l 17 Aug 2026 |
| Magnesium 0237 | River water | 1 | Apr 2025 – Apr 2025 | 8 mg/l 9 Apr 2025 |
| Magnesium, Dissolved 0235 | River water | 15 | Jan 2025 – Aug 2026 | 9 mg/l 17 Aug 2026 |
| Manganese, Dissolved 6458 | River water | 16 | Jan 2025 – Aug 2026 | below 10 µg/l 17 Aug 2026 |
| National Grid Reference : Whole : Field report 7434 | River water | 3 | Jan 2025 – Oct 2025 | 1 unitless value 8 Oct 2025 |
| Nickel 6462 | River water | 16 | Jan 2025 – Aug 2026 | below 1 µg/l 17 Aug 2026 |
| Nickel, Dissolved 3410 | River water | 16 | Jan 2025 – Aug 2026 | below 1 µg/l 17 Aug 2026 |
| pH : In Situ 3169 | River water | 15 | Jan 2025 – Aug 2026 | 8.48 17 Aug 2026 |
| Potassium, Dissolved 0209 | River water | 15 | Jan 2025 – Aug 2026 | 1.1 mg/l 17 Aug 2026 |
| Sodium, Dissolved 0205 | River water | 15 | Jan 2025 – Aug 2026 | 6.9 mg/l 17 Aug 2026 |
| Solids, Suspended at 105 C 0135 | River water | 16 | Jan 2025 – Aug 2026 | below 3 mg/l 17 Aug 2026 |
| Strontium, Filtered 6693 | River water | 15 | Jan 2025 – Aug 2026 | 210 µg/l 17 Aug 2026 |
| Sulphate, Dissolved as SO4 7859 | River water | 15 | Jan 2025 – Aug 2026 | 13 mg/l 17 Aug 2026 |
| Zinc 6455 | River water | 16 | Jan 2025 – Aug 2026 | 23 µg/l 17 Aug 2026 |
| Zinc, Dissolved 3408 | River water | 16 | Jan 2025 – Aug 2026 | 19 µg/l 17 Aug 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.