Swale downstream of Grinton Gill
EA name: SWALE D/S GRINTON GILL
Environment Agency sampling point NE-49905262 · 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, 10:142 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 2 since 7 Jul 2026 Imported periods: 1 Oct 2023 – 26 Oct 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Monitoring (national agency policy) · results completed 28 Aug 2026
- Where
- National Grid 404791, 498581As published, to the nearest 1 m. Open in a map
- River, by its own name
- Swale
- River, by the map
- River SwalePlaced on the river its name gives, 6 m from the line.
- Next gauge downstream
- Richmond Lownthwaite Bridge On the River Swale · 14 km along the river
- Nearest gauge upstream
- Grinton Bridge On the River Swale · 0.1 km along the river
- Why it was sampled
- Monitoring (national agency policy) (2 samples)
Results here were completed a median of 18 days after the sample was taken (11 to 18 days, 2 samples).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
110%
Sampled 17 Aug 2026, 2 months ago · 2 results banked
Every result (2)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Aug 2026, 10:14 | 110 | 110% |
| 7 Jul 2026, 09:15 | 99.3 | 99.3% |
Water temperature
code 0076 · °C
15 °C
Sampled 17 Aug 2026, 2 months ago · 2 results banked
Every result (2)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Aug 2026, 10:14 | 15 | 15 °C |
| 7 Jul 2026, 09:15 | 15.2 | 15.2 °C |
pH
code 0061
8.4
Sampled 17 Aug 2026, 2 months ago · 2 results banked
Every result (2)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Aug 2026, 10:14 | 8.4 | 8.4 |
| 7 Jul 2026, 09:15 | 8.3 | 8.3 |
Conductivity
at 25 °C · code 0077 · µS/cm
326 µS/cm
Sampled 17 Aug 2026, 2 months ago · 2 results banked
Every result (2)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Aug 2026, 10:14 | 326 | 326 µS/cm |
| 7 Jul 2026, 09:15 | 276 | 276 µS/cm |
Everything measured here
29 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 29 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 2 | Jul 2026 – Aug 2026 | 110% 17 Aug 2026 |
| Temperature of Water 0076 | River water | 2 | Jul 2026 – Aug 2026 | 15 °C 17 Aug 2026 |
| pH 0061 | River water | 2 | Jul 2026 – Aug 2026 | 8.4 17 Aug 2026 |
| Conductivity at 25 C 0077 | River water | 2 | Jul 2026 – Aug 2026 | 326 µS/cm 17 Aug 2026 |
| Barium, Dissolved 9446 | River water | 2 | Jul 2026 – Aug 2026 | 370 µg/l 17 Aug 2026 |
| Boron, Dissolved 9447 | River water | 2 | Jul 2026 – Aug 2026 | below 100 µg/l 17 Aug 2026 |
| Cadmium 0108 | River water | 2 | Jul 2026 – Aug 2026 | 0.22 µg/l 17 Aug 2026 |
| Cadmium, Dissolved 0106 | River water | 2 | Jul 2026 – Aug 2026 | 0.17 µg/l 17 Aug 2026 |
| Calcium, Dissolved 0239 | River water | 2 | Jul 2026 – Aug 2026 | 52 mg/l 17 Aug 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 2 | Jul 2026 – Aug 2026 | 1.8 mg/l 17 Aug 2026 |
| Copper 6452 | River water | 2 | Jul 2026 – Aug 2026 | below 1 µg/l 17 Aug 2026 |
| Copper, Dissolved 6450 | River water | 2 | Jul 2026 – Aug 2026 | below 1 µg/l 17 Aug 2026 |
| Hardness, Total as CaCO3 0158 | River water | 2 | Jul 2026 – Aug 2026 | 153 mg/l 17 Aug 2026 |
| Iron, Dissolved 6460 | River water | 2 | Jul 2026 – Aug 2026 | below 30 µg/l 17 Aug 2026 |
| Lead 0050 | River water | 2 | Jul 2026 – Aug 2026 | 2.6 µg/l 17 Aug 2026 |
| Lead, Dissolved 0052 | River water | 2 | Jul 2026 – Aug 2026 | below 2 µg/l 17 Aug 2026 |
| Lithium, Dissolved 4201 | River water | 2 | Jul 2026 – Aug 2026 | below 100 µg/l 17 Aug 2026 |
| Magnesium, Dissolved 0235 | River water | 2 | Jul 2026 – Aug 2026 | 5.7 mg/l 17 Aug 2026 |
| Manganese, Dissolved 6458 | River water | 2 | Jul 2026 – Aug 2026 | below 10 µg/l 17 Aug 2026 |
| Nickel 6462 | River water | 2 | Jul 2026 – Aug 2026 | below 1 µg/l 17 Aug 2026 |
| Nickel, Dissolved 3410 | River water | 2 | Jul 2026 – Aug 2026 | below 1 µg/l 17 Aug 2026 |
| pH : In Situ 3169 | River water | 2 | Jul 2026 – Aug 2026 | 8.32 17 Aug 2026 |
| Potassium, Dissolved 0209 | River water | 2 | Jul 2026 – Aug 2026 | 1.3 mg/l 17 Aug 2026 |
| Sodium, Dissolved 0205 | River water | 2 | Jul 2026 – Aug 2026 | 7.8 mg/l 17 Aug 2026 |
| Solids, Suspended at 105 C 0135 | River water | 2 | Jul 2026 – Aug 2026 | below 3 mg/l 17 Aug 2026 |
| Strontium, Filtered 6693 | River water | 2 | Jul 2026 – Aug 2026 | 320 µg/l 17 Aug 2026 |
| Sulphate, Dissolved as SO4 7859 | River water | 2 | Jul 2026 – Aug 2026 | 17 mg/l 17 Aug 2026 |
| Zinc 6455 | River water | 2 | Jul 2026 – Aug 2026 | 22 µg/l 17 Aug 2026 |
| Zinc, Dissolved 3408 | River water | 2 | Jul 2026 – Aug 2026 | 16 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.