Swale at Grinton Bridge
EA name: SWALE AT GRINTON BRIDGE
Environment Agency sampling point NE-49900179 · 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
- 8 Sep 2026, 11:5723 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 33 since 5 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 404648, 498515As 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, 0 m from the line.
- Next gauge downstream
- Grinton Bridge On the River Swale · 0.1 km along the river
- Nearest gauge upstream
- Reeth On the Arkle Beck · 1.0 km along the riverPark Bridge On the River Swale · 21 km along the river
- Why it was sampled
- Monitoring (national agency policy) (30 samples)
Planned investigation (local monitoring) (3 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
100.6%
Sampled 8 Sep 2026, 23 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 11:57 | 100.6 | 100.6% |
| 17 Aug 2026, 09:02 | 102 | 102% |
| 14 Aug 2026, 11:43 | 111.1 | 111.1% |
| 22 Jul 2026, 12:21 | 112.4 | 112.4% |
| 7 Jul 2026, 09:19 | 98.1 | 98.1% |
| 8 Jan 2026, 11:15 | 101.4 | 101.4% |
| 3 Oct 2025, 14:22 | 96 | 96% |
| 24 Sep 2025, 10:55 | 102.5 | 102.5% |
| 27 Aug 2025, 10:46 | 107.7 | 107.7% |
| 19 Aug 2025, 09:26 | 97.9 | 97.9% |
| 31 Jul 2025, 10:37 | 104.7 | 104.7% |
| 30 Jun 2025, 10:34 | 96.2 | 96.2% |
| 22 May 2025, 10:40 | 106.1 | 106.1% |
| 16 Apr 2025, 10:17 | 107.6 | 107.6% |
| 14 Apr 2025, 13:05 | 110.4 | 110.4% |
| 31 Mar 2025, 11:01 | 102 | 102% |
| 13 Feb 2025, 10:39 | 95.9 | 95.9% |
| 8 Jan 2025, 09:10 | 99.7 | 99.7% |
| 11 Dec 2024, 14:27 | 100.6 | 100.6% |
| 5 Nov 2024, 11:01 | 91.2 | 91.2% |
| 21 Oct 2024, 09:35 | 101.1 | 101.1% |
| 2 Oct 2024, 10:16 | 99.7 | 99.7% |
| 2 Sep 2024, 10:54 | 103.2 | 103.2% |
| 19 Aug 2024, 11:02 | 103.8 | 103.8% |
| 6 Aug 2024, 10:54 | 102.7 | 102.7% |
| 15 Jul 2024, 11:31 | 104 | 104% |
| 5 Jul 2024, 10:08 | 102.4 | 102.4% |
| 19 Jun 2024, 11:12 | 84.3 | 84.3% |
| 20 May 2024, 11:06 | 104.8 | 104.8% |
| 10 Apr 2024, 11:22 | 93 | 93% |
| 2 Apr 2024, 10:09 | 101.3 | 101.3% |
| 3 Jan 2024, 08:55 | 99.9 | 99.9% |
| 5 Oct 2023, 10:23 | 97.4 | 97.4% |
Dissolved oxygen
as O2 · code 9924 · mg/l
14.3 mg/l
Sampled 8 Jan 2026, 9 months ago · 10 results banked
Every result (10)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Jan 2026, 11:15 | 14.3 | 14.3 mg/l |
| 3 Oct 2025, 14:22 | 10.4 | 10.4 mg/l |
| 19 Aug 2025, 09:26 | 9.87 | 9.87 mg/l |
| 14 Apr 2025, 13:05 | 11.9 | 11.9 mg/l |
| 8 Jan 2025, 09:10 | 14.1 | 14.1 mg/l |
| 2 Oct 2024, 10:16 | 11.3 | 11.3 mg/l |
| 5 Jul 2024, 10:08 | 10.9 | 10.9 mg/l |
| 2 Apr 2024, 10:09 | 12.4 | 12.4 mg/l |
| 3 Jan 2024, 08:55 | 12.5 | 12.5 mg/l |
| 5 Oct 2023, 10:23 | 10.5 | 10.5 mg/l |
Water temperature
code 0076 · °C
13.5 °C
Sampled 8 Sep 2026, 23 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 11:57 | 13.5 | 13.5 °C |
| 17 Aug 2026, 09:02 | 14.7 | 14.7 °C |
| 14 Aug 2026, 11:43 | 20.1 | 20.1 °C |
| 22 Jul 2026, 12:21 | 16.9 | 16.9 °C |
| 7 Jul 2026, 09:19 | 15.1 | 15.1 °C |
| 8 Jan 2026, 11:15 | 1.2 | 1.2 °C |
| 3 Oct 2025, 14:22 | 11.6 | 11.6 °C |
| 24 Sep 2025, 10:55 | 10.3 | 10.3 °C |
| 27 Aug 2025, 10:46 | 15.4 | 15.4 °C |
| 19 Aug 2025, 09:26 | 14.9 | 14.9 °C |
| 31 Jul 2025, 10:37 | 15.7 | 15.7 °C |
| 30 Jun 2025, 10:34 | 17.4 | 17.4 °C |
| 22 May 2025, 10:40 | 12.7 | 12.7 °C |
| 16 Apr 2025, 10:17 | 9.2 | 9.2 °C |
| 14 Apr 2025, 13:05 | 11.8 | 11.8 °C |
| 31 Mar 2025, 11:01 | 8.8 | 8.8 °C |
| 13 Feb 2025, 10:39 | 4.1 | 4.1 °C |
| 8 Jan 2025, 09:10 | 1.1 | 1.1 °C |
| 11 Dec 2024, 14:27 | 5.9 | 5.9 °C |
| 5 Nov 2024, 11:01 | 9.2 | 9.2 °C |
| 21 Oct 2024, 09:35 | 9.4 | 9.4 °C |
| 2 Oct 2024, 10:16 | 9.8 | 9.8 °C |
| 2 Sep 2024, 10:54 | 14.7 | 14.7 °C |
| 19 Aug 2024, 11:02 | 14.3 | 14.3 °C |
| 6 Aug 2024, 10:54 | 16.9 | 16.9 °C |
| 15 Jul 2024, 11:31 | 15.1 | 15.1 °C |
| 5 Jul 2024, 10:08 | 12.5 | 12.5 °C |
| 19 Jun 2024, 11:12 | 14.2 | 14.2 °C |
| 20 May 2024, 11:06 | 13.3 | 13.3 °C |
| 10 Apr 2024, 11:22 | 7.2 | 7.2 °C |
| 2 Apr 2024, 10:09 | 6.7 | 6.7 °C |
| 3 Jan 2024, 08:55 | 5.9 | 5.9 °C |
| 5 Oct 2023, 10:23 | 11.7 | 11.7 °C |
pH
code 0061
8.2
Sampled 8 Sep 2026, 23 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 11:57 | 8.2 | 8.2 |
| 17 Aug 2026, 09:02 | 8.3 | 8.3 |
| 14 Aug 2026, 11:43 | 8.5 | 8.5 |
| 22 Jul 2026, 12:21 | 8.3 | 8.3 |
| 7 Jul 2026, 09:19 | 8.3 | 8.3 |
| 8 Jan 2026, 11:15 | 7.95 | 7.95 |
| 3 Oct 2025, 14:22 | 8.01 | 8.01 |
| 24 Sep 2025, 10:55 | 8 | 8 |
| 27 Aug 2025, 10:46 | 8.4 | 8.4 |
| 19 Aug 2025, 09:26 | 8.25 | 8.25 |
| 31 Jul 2025, 10:37 | 8.3 | 8.3 |
| 30 Jun 2025, 10:34 | 7.8 | 7.8 |
| 22 May 2025, 10:40 | 8.2 | 8.2 |
| 16 Apr 2025, 10:17 | 8.3 | 8.3 |
| 14 Apr 2025, 13:05 | 8.84 | 8.84 |
| 31 Mar 2025, 11:01 | 8.1 | 8.1 |
| 13 Feb 2025, 10:39 | 7.8 | 7.8 |
| 8 Jan 2025, 09:10 | 8.03 | 8.03 |
| 11 Dec 2024, 14:27 | 7.9 | 7.9 |
| 5 Nov 2024, 11:01 | 8 | 8 |
| 21 Oct 2024, 09:35 | 7.7 | 7.7 |
| 2 Oct 2024, 10:16 | 7.95 | 7.95 |
| 2 Sep 2024, 10:54 | 7.66 | 7.66 |
| 19 Aug 2024, 11:02 | 8.09 | 8.09 |
| 6 Aug 2024, 10:54 | 8.23 | 8.23 |
| 15 Jul 2024, 11:31 | 8.04 | 8.04 |
| 5 Jul 2024, 10:08 | 8.31 | 8.31 |
| 19 Jun 2024, 11:12 | 7.73 | 7.73 |
| 20 May 2024, 11:06 | 8.19 | 8.19 |
| 10 Apr 2024, 11:22 | 7.72 | 7.72 |
| 2 Apr 2024, 10:09 | 7.98 | 7.98 |
| 3 Jan 2024, 08:55 | 6.65 | 6.65 |
| 5 Oct 2023, 10:23 | 7.55 | 7.55 |
Conductivity
at 25 °C · code 0077 · µS/cm
215 µS/cm
Sampled 8 Sep 2026, 23 days ago · 33 results banked
Every result (33)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 11:57 | 215 | 215 µS/cm |
| 17 Aug 2026, 09:02 | 332 | 332 µS/cm |
| 14 Aug 2026, 11:43 | 335 | 335 µS/cm |
| 22 Jul 2026, 12:21 | 318 | 318 µS/cm |
| 7 Jul 2026, 09:19 | 271 | 271 µS/cm |
| 8 Jan 2026, 11:15 | 272 | 272 µS/cm |
| 3 Oct 2025, 14:22 | 101 | 101 µS/cm |
| 24 Sep 2025, 10:55 | 198 | 198 µS/cm |
| 27 Aug 2025, 10:46 | 323 | 323 µS/cm |
| 19 Aug 2025, 09:26 | 300 | 300 µS/cm |
| 31 Jul 2025, 10:37 | 266 | 266 µS/cm |
| 30 Jun 2025, 10:34 | 140 | 140 µS/cm |
| 22 May 2025, 10:40 | 343 | 343 µS/cm |
| 16 Apr 2025, 10:17 | 301 | 301 µS/cm |
| 14 Apr 2025, 13:05 | 298 | 298 µS/cm |
| 31 Mar 2025, 11:01 | 270 | 270 µS/cm |
| 13 Feb 2025, 10:39 | 184 | 184 µS/cm |
| 8 Jan 2025, 09:10 | 242 | 242 µS/cm |
| 11 Dec 2024, 14:27 | 181 | 181 µS/cm |
| 5 Nov 2024, 11:01 | 264 | 264 µS/cm |
| 21 Oct 2024, 09:35 | 118 | 118 µS/cm |
| 2 Oct 2024, 10:16 | 111 | 111 µS/cm |
| 2 Sep 2024, 10:54 | 263 | 263 µS/cm |
| 19 Aug 2024, 11:02 | 267 | 267 µS/cm |
| 6 Aug 2024, 10:54 | 297 | 297 µS/cm |
| 15 Jul 2024, 11:31 | 149 | 149 µS/cm |
| 5 Jul 2024, 10:08 | 206 | 206 µS/cm |
| 19 Jun 2024, 11:12 | 336.4 | 336.4 µS/cm |
| 20 May 2024, 11:06 | 258.5 | 258.5 µS/cm |
| 10 Apr 2024, 11:22 | 167.4 | 167.4 µS/cm |
| 2 Apr 2024, 10:09 | 141 | 141 µS/cm |
| 3 Jan 2024, 08:55 | 103 | 103 µS/cm |
| 5 Oct 2023, 10:23 | 153 | 153 µS/cm |
Everything measured here
34 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 34 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 33 | Oct 2023 – Sep 2026 | 100.6% 8 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 10 | Oct 2023 – Jan 2026 | 14.3 mg/l 8 Jan 2026 |
| Temperature of Water 0076 | River water | 33 | Oct 2023 – Sep 2026 | 13.5 °C 8 Sep 2026 |
| pH 0061 | River water | 33 | Oct 2023 – Sep 2026 | 8.2 8 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 33 | Oct 2023 – Sep 2026 | 215 µS/cm 8 Sep 2026 |
| Barium, Dissolved 9446 | River water | 22 | Apr 2024 – Sep 2026 | 230 µg/l 8 Sep 2026 |
| Boron, Dissolved 9447 | River water | 23 | Apr 2024 – Sep 2026 | below 100 µg/l 8 Sep 2026 |
| Cadmium 0108 | River water | 23 | Apr 2024 – Sep 2026 | 0.26 µg/l 8 Sep 2026 |
| Cadmium, Dissolved 0106 | River water | 23 | Apr 2024 – Sep 2026 | 0.23 µg/l 8 Sep 2026 |
| Calcium 0241 | River water | 1 | Apr 2025 – Apr 2025 | 47 mg/l 16 Apr 2025 |
| Calcium, Dissolved 0239 | River water | 22 | Apr 2024 – Sep 2026 | 32 mg/l 8 Sep 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 23 | Apr 2024 – Sep 2026 | 7.1 mg/l 8 Sep 2026 |
| Copper 6452 | River water | 23 | Apr 2024 – Sep 2026 | 2 µg/l 8 Sep 2026 |
| Copper, Dissolved 6450 | River water | 23 | Apr 2024 – Sep 2026 | 1.7 µg/l 8 Sep 2026 |
| Hardness, Total as CaCO3 0158 | River water | 23 | Apr 2024 – Sep 2026 | 94.7 mg/l 8 Sep 2026 |
| Iron 6051 | River water | 1 | Apr 2025 – Apr 2025 | 30 µg/l 16 Apr 2025 |
| Iron, Dissolved 6460 | River water | 22 | Apr 2024 – Sep 2026 | 240 µg/l 8 Sep 2026 |
| Lead 0050 | River water | 23 | Apr 2024 – Sep 2026 | 7 µg/l 8 Sep 2026 |
| Lead, Dissolved 0052 | River water | 23 | Apr 2024 – Sep 2026 | 13 µg/l 8 Sep 2026 |
| Lithium, Dissolved 4201 | River water | 23 | Apr 2024 – Sep 2026 | below 100 µg/l 8 Sep 2026 |
| Magnesium 0237 | River water | 1 | Apr 2025 – Apr 2025 | 5.2 mg/l 16 Apr 2025 |
| Magnesium, Dissolved 0235 | River water | 22 | Apr 2024 – Sep 2026 | 3.6 mg/l 8 Sep 2026 |
| Manganese, Dissolved 6458 | River water | 22 | Apr 2024 – Sep 2026 | 12 µg/l 8 Sep 2026 |
| National Grid Reference : Whole : Field report 7434 | River water | 3 | Apr 2024 – Jun 2024 | 1 unitless value 19 Jun 2024 |
| Nickel 6462 | River water | 23 | Apr 2024 – Sep 2026 | 1.4 µg/l 8 Sep 2026 |
| Nickel, Dissolved 3410 | River water | 23 | Apr 2024 – Sep 2026 | 1.1 µg/l 8 Sep 2026 |
| pH : In Situ 3169 | River water | 13 | Dec 2024 – Sep 2026 | 8.37 8 Sep 2026 |
| Potassium, Dissolved 0209 | River water | 22 | Apr 2024 – Sep 2026 | 1.1 mg/l 8 Sep 2026 |
| Sodium, Dissolved 0205 | River water | 22 | Apr 2024 – Sep 2026 | 6.6 mg/l 8 Sep 2026 |
| Solids, Suspended at 105 C 0135 | River water | 23 | Apr 2024 – Sep 2026 | below 3 mg/l 8 Sep 2026 |
| Strontium, Filtered 6693 | River water | 22 | Apr 2024 – Sep 2026 | 190 µg/l 8 Sep 2026 |
| Sulphate, Dissolved as SO4 7859 | River water | 22 | Apr 2024 – Sep 2026 | 13 mg/l 8 Sep 2026 |
| Zinc 6455 | River water | 23 | Apr 2024 – Sep 2026 | 37 µg/l 8 Sep 2026 |
| Zinc, Dissolved 3408 | River water | 23 | Apr 2024 – Sep 2026 | 31 µg/l 8 Sep 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.