Swale at A684 Morton-on-Swale
EA name: SWALE AT A684 MORTON-ON-SWALE
Environment Agency sampling point NE-49900186 · 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, 09:0247 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 19 since 11 Oct 2023 Imported periods: 1 Oct 2023 – 25 Oct 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Monitoring (national agency policy) · results completed 14 Oct 2026
- Where
- National Grid 431874, 491781As 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, 7 m from the line.
- Next gauge downstream
- Maunby On the River Swale · 12 km along the river
- Nearest gauge upstream
- Catterick Village On the Brough Beck · 17 km along the riverCatterick Bridge On the River Swale · 20 km along the river
- Why it was sampled
- Environmental monitoring statutory (EU directives) (10 samples)
Monitoring (national agency policy) (9 samples)
Results here were completed a median of 21 days after the sample was taken (20 to 36 days, 3 samples).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
83.5%
Sampled 8 Sep 2026, 47 days ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 09:02 | 83.5 | 83.5% |
| 22 Jul 2026, 08:51 | 105 | 105% |
| 7 Mar 2025, 10:45 | 101.2 | 101.2% |
| 5 Feb 2025, 09:57 | 94.1 | 94.1% |
| 6 Jan 2025, 10:46 | 98.1 | 98.1% |
| 2 Dec 2024, 10:36 | 97.9 | 97.9% |
| 1 Nov 2024, 10:33 | 95.2 | 95.2% |
| 3 Oct 2024, 10:18 | 98.9 | 98.9% |
| 6 Sep 2024, 09:03 | 95.3 | 95.3% |
| 9 Aug 2024, 08:02 | 107.2 | 107.2% |
| 4 Jul 2024, 09:02 | 97.7 | 97.7% |
| 6 Jun 2024, 08:43 | 95.8 | 95.8% |
Dissolved oxygen
as O2 · code 9924 · mg/l
11.9 mg/l
Sampled 7 Mar 2025, 20 months ago · 10 results banked
Every result (10)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Mar 2025, 10:45 | 11.9 | 11.9 mg/l |
| 5 Feb 2025, 09:57 | 11.8 | 11.8 mg/l |
| 6 Jan 2025, 10:46 | 13.1 | 13.1 mg/l |
| 2 Dec 2024, 10:36 | 11.5 | 11.5 mg/l |
| 1 Nov 2024, 10:33 | 10.6 | 10.6 mg/l |
| 3 Oct 2024, 10:18 | 10.8 | 10.8 mg/l |
| 6 Sep 2024, 09:03 | 9.59 | 9.59 mg/l |
| 9 Aug 2024, 08:02 | 10.7 | 10.7 mg/l |
| 4 Jul 2024, 09:02 | 10 | 10 mg/l |
| 6 Jun 2024, 08:43 | 10.2 | 10.2 mg/l |
Water temperature
code 0076 · °C
15.1 °C
Sampled 8 Sep 2026, 47 days ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 09:02 | 15.1 | 15.1 °C |
| 14 Aug 2026, 09:06 | 20 | 20 °C |
| 22 Jul 2026, 08:51 | 18.8 | 18.8 °C |
| 7 Mar 2025, 10:45 | 8.2 | 8.2 °C |
| 5 Feb 2025, 09:57 | 5.6 | 5.6 °C |
| 6 Jan 2025, 10:46 | 3.3 | 3.3 °C |
| 2 Dec 2024, 10:36 | 8.4 | 8.4 °C |
| 1 Nov 2024, 10:33 | 10.6 | 10.6 °C |
| 3 Oct 2024, 10:18 | 11.4 | 11.4 °C |
| 6 Sep 2024, 09:03 | 15 | 15 °C |
| 9 Aug 2024, 08:02 | 15.2 | 15.2 °C |
| 4 Jul 2024, 09:02 | 14 | 14 °C |
| 6 Jun 2024, 08:43 | 12.3 | 12.3 °C |
| 4 Mar 2024, 10:48 | 5.2 | 5.2 °C |
| 5 Feb 2024, 09:42 | 8.1 | 8.1 °C |
| 9 Jan 2024, 09:05 | 5 | 5 °C |
| 12 Dec 2023, 11:03 | 6.6 | 6.6 °C |
| 7 Nov 2023, 11:28 | 8.6 | 8.6 °C |
| 11 Oct 2023, 09:44 | 14.2 | 14.2 °C |
pH
code 0061
8
Sampled 8 Sep 2026, 47 days ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 09:02 | 8 | 8 |
| 14 Aug 2026, 09:06 | 8.3 | 8.3 |
| 22 Jul 2026, 08:51 | 8.5 | 8.5 |
| 7 Mar 2025, 10:45 | 8.27 | 8.27 |
| 5 Feb 2025, 09:57 | 8.4 | 8.4 |
| 6 Jan 2025, 10:46 | 7.98 | 7.98 |
| 2 Dec 2024, 10:36 | 8.1 | 8.1 |
| 1 Nov 2024, 10:33 | 8.3 | 8.3 |
| 3 Oct 2024, 10:18 | 7.9 | 7.9 |
| 6 Sep 2024, 09:03 | 8.06 | 8.06 |
| 9 Aug 2024, 08:02 | 8.51 | 8.51 |
| 4 Jul 2024, 09:02 | 8.49 | 8.49 |
| 6 Jun 2024, 08:43 | 8.32 | 8.32 |
| 4 Mar 2024, 10:48 | 8 | 8 |
| 5 Feb 2024, 09:42 | 8.2 | 8.2 |
| 9 Jan 2024, 09:05 | 8.1 | 8.1 |
| 12 Dec 2023, 11:03 | 7.8 | 7.8 |
| 7 Nov 2023, 11:28 | 8.1 | 8.1 |
| 11 Oct 2023, 09:44 | 8.2 | 8.2 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.065 mg/l
Sampled 8 Sep 2026, 47 days ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 09:02 | 0.065 | 0.065 mg/l |
| 14 Aug 2026, 09:06 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Jul 2026, 08:51 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Mar 2025, 10:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Feb 2025, 09:57 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Jan 2025, 10:46 | 0.13 | 0.13 mg/l |
| 2 Dec 2024, 10:36 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Nov 2024, 10:33 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Oct 2024, 10:18 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Sep 2024, 09:03 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Aug 2024, 08:02 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Jul 2024, 09:02 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Jun 2024, 08:43 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Mar 2024, 10:48 | 0.031 | 0.031 mg/l |
| 5 Feb 2024, 09:42 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Jan 2024, 09:05 | 0.032 | 0.032 mg/l |
| 12 Dec 2023, 11:03 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Nov 2023, 11:28 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Oct 2023, 09:44 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
2.09 mg/l
Sampled 7 Mar 2025, 20 months ago · 10 results banked
Every result (10)
| Sampled | Result as published | Reads as |
|---|---|---|
| 7 Mar 2025, 10:45 | 2.09 | 2.09 mg/l |
| 5 Feb 2025, 09:57 | 1.99 | 1.99 mg/l |
| 6 Jan 2025, 10:46 | 3.19 | 3.19 mg/l |
| 2 Dec 2024, 10:36 | 1.1 | 1.1 mg/l |
| 1 Nov 2024, 10:33 | 1.6 | 1.6 mg/l |
| 3 Oct 2024, 10:18 | 2.59 | 2.59 mg/l |
| 6 Sep 2024, 09:03 | 1.79 | 1.79 mg/l |
| 9 Aug 2024, 08:02 | 1.49 | 1.49 mg/l |
| 4 Jul 2024, 09:02 | 1.99 | 1.99 mg/l |
| 6 Jun 2024, 08:43 | 1.89 | 1.89 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.11 mg/l
Sampled 8 Sep 2026, 47 days ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 09:02 | 0.11 | 0.11 mg/l |
| 14 Aug 2026, 09:06 | 0.02 | 0.02 mg/l |
| 22 Jul 2026, 08:51 | <0.01 | below 0.01 mg/l (not detected above this) |
| 7 Mar 2025, 10:45 | 0.019 | 0.019 mg/l |
| 5 Feb 2025, 09:57 | 0.038 | 0.038 mg/l |
| 6 Jan 2025, 10:46 | 0.11 | 0.11 mg/l |
| 2 Dec 2024, 10:36 | 0.025 | 0.025 mg/l |
| 1 Nov 2024, 10:33 | 0.033 | 0.033 mg/l |
| 3 Oct 2024, 10:18 | 0.037 | 0.037 mg/l |
| 6 Sep 2024, 09:03 | 0.067 | 0.067 mg/l |
| 9 Aug 2024, 08:02 | 0.017 | 0.017 mg/l |
| 4 Jul 2024, 09:02 | 0.042 | 0.042 mg/l |
| 6 Jun 2024, 08:43 | 0.029 | 0.029 mg/l |
| 4 Mar 2024, 10:48 | 0.025 | 0.025 mg/l |
| 5 Feb 2024, 09:42 | 0.023 | 0.023 mg/l |
| 9 Jan 2024, 09:05 | 0.026 | 0.026 mg/l |
| 12 Dec 2023, 11:03 | 0.014 | 0.014 mg/l |
| 7 Nov 2023, 11:28 | 0.019 | 0.019 mg/l |
| 11 Oct 2023, 09:44 | 0.046 | 0.046 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
358 µS/cm
Sampled 8 Sep 2026, 47 days ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 09:02 | 358 | 358 µS/cm |
| 14 Aug 2026, 09:06 | 756 | 756 µS/cm |
| 22 Jul 2026, 08:51 | 433 | 433 µS/cm |
| 7 Mar 2025, 10:45 | 429 | 429 µS/cm |
| 5 Feb 2025, 09:57 | 384 | 384 µS/cm |
| 6 Jan 2025, 10:46 | 427 | 427 µS/cm |
| 2 Dec 2024, 10:36 | 289 | 289 µS/cm |
| 1 Nov 2024, 10:33 | 363 | 363 µS/cm |
| 3 Oct 2024, 10:18 | 290 | 290 µS/cm |
| 6 Sep 2024, 09:03 | 415 | 415 µS/cm |
| 9 Aug 2024, 08:02 | 463 | 463 µS/cm |
| 4 Jul 2024, 09:02 | 459 | 459 µS/cm |
| 6 Jun 2024, 08:43 | 397 | 397 µS/cm |
| 4 Mar 2024, 10:48 | 275 | 275 µS/cm |
| 5 Feb 2024, 09:42 | 377 | 377 µS/cm |
| 9 Jan 2024, 09:05 | 400 | 400 µS/cm |
| 12 Dec 2023, 11:03 | 203 | 203 µS/cm |
| 7 Nov 2023, 11:28 | 341 | 341 µS/cm |
| 11 Oct 2023, 09:44 | 309 | 309 µS/cm |
Everything measured here
58 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 58 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 12 | Jun 2024 – Sep 2026 | 83.5% 8 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 10 | Jun 2024 – Mar 2025 | 11.9 mg/l 7 Mar 2025 |
| Temperature of Water 0076 | River water | 19 | Oct 2023 – Sep 2026 | 15.1 °C 8 Sep 2026 |
| pH 0061 | River water | 19 | Oct 2023 – Sep 2026 | 8 8 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 19 | Oct 2023 – Sep 2026 | 0.065 mg/l 8 Sep 2026 |
| Nitrate as N 0117 | River water | 10 | Jun 2024 – Mar 2025 | 2.09 mg/l 7 Mar 2025 |
| Orthophosphate, reactive as P 0180 | River water | 19 | Oct 2023 – Sep 2026 | 0.11 mg/l 8 Sep 2026 |
| Conductivity at 25 C 0077 | River water | 19 | Oct 2023 – Sep 2026 | 358 µS/cm 8 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 19 | Oct 2023 – Sep 2026 | 140 mg/l 8 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 10 | Jun 2024 – Mar 2025 | below 0.00048 mg/l 7 Mar 2025 |
| Barium 6062 | River water | 9 | Oct 2023 – Sep 2026 | 230 µg/l 8 Sep 2026 |
| Barium, Dissolved 9446 | River water | 9 | Oct 2023 – Sep 2026 | 210 µg/l 8 Sep 2026 |
| Boron 6059 | River water | 9 | Oct 2023 – Sep 2026 | below 100 µg/l 8 Sep 2026 |
| Boron, Dissolved 9447 | River water | 9 | Oct 2023 – Sep 2026 | below 100 µg/l 8 Sep 2026 |
| Cadmium 0108 | River water | 9 | Oct 2023 – Sep 2026 | 0.13 µg/l 8 Sep 2026 |
| Cadmium, Dissolved 0106 | River water | 9 | Oct 2023 – Sep 2026 | 0.043 µg/l 8 Sep 2026 |
| Calcium 0241 | River water | 9 | Oct 2023 – Sep 2026 | 48 mg/l 8 Sep 2026 |
| Calcium, Dissolved 0239 | River water | 9 | Oct 2023 – Sep 2026 | 48 mg/l 8 Sep 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 9 | Oct 2023 – Sep 2026 | 7.9 mg/l 8 Sep 2026 |
| Chloride 0172 | River water | 9 | Oct 2023 – Sep 2026 | 18 mg/l 8 Sep 2026 |
| Chromium 3164 | River water | 9 | Oct 2023 – Sep 2026 | below 0.5 µg/l 8 Sep 2026 |
| Chromium, Dissolved 3409 | River water | 9 | Oct 2023 – Sep 2026 | below 0.5 µg/l 8 Sep 2026 |
| Copper 6452 | River water | 9 | Oct 2023 – Sep 2026 | 1.4 µg/l 8 Sep 2026 |
| Copper : BLM Bioavailable 4821 | River water | 9 | Oct 2023 – Sep 2026 | 0.05 µg/l 8 Sep 2026 |
| Copper, Dissolved 6450 | River water | 9 | Oct 2023 – Sep 2026 | 1.2 µg/l 8 Sep 2026 |
| Hardness, Total as CaCO3 0158 | River water | 9 | Oct 2023 – Sep 2026 | 151 mg/l 8 Sep 2026 |
| Ionic Balance 7044 | River water | 9 | Oct 2023 – Sep 2026 | -3.9% 8 Sep 2026 |
| Iron 6051 | River water | 9 | Oct 2023 – Sep 2026 | 300 µg/l 8 Sep 2026 |
| Iron, Dissolved 6460 | River water | 9 | Oct 2023 – Sep 2026 | 150 µg/l 8 Sep 2026 |
| Lead 0050 | River water | 9 | Oct 2023 – Sep 2026 | 15 µg/l 8 Sep 2026 |
| Lead : BLM Bioavailable 3377 | River water | 9 | Oct 2023 – Sep 2026 | 0.41 µg/l 8 Sep 2026 |
| Lead, Dissolved 0052 | River water | 9 | Oct 2023 – Sep 2026 | 3.2 µg/l 8 Sep 2026 |
| Lithium 6064 | River water | 9 | Oct 2023 – Sep 2026 | below 100 µg/l 8 Sep 2026 |
| Lithium, Dissolved 4201 | River water | 9 | Oct 2023 – Sep 2026 | below 100 µg/l 8 Sep 2026 |
| Magnesium 0237 | River water | 9 | Oct 2023 – Sep 2026 | 7.9 mg/l 8 Sep 2026 |
| Magnesium, Dissolved 0235 | River water | 9 | Oct 2023 – Sep 2026 | 7.5 mg/l 8 Sep 2026 |
| Manganese 6050 | River water | 9 | Oct 2023 – Sep 2026 | 71 µg/l 8 Sep 2026 |
| Manganese : BLM Bioavailable 4820 | River water | 9 | Oct 2023 – Sep 2026 | 55 µg/l 8 Sep 2026 |
| Manganese, Dissolved 6458 | River water | 9 | Oct 2023 – Sep 2026 | 55 µg/l 8 Sep 2026 |
| Nickel 6462 | River water | 9 | Oct 2023 – Sep 2026 | 1.2 µg/l 8 Sep 2026 |
| Nickel : BLM Bioavailable 3878 | River water | 9 | Oct 2023 – Sep 2026 | 0.32 µg/l 8 Sep 2026 |
| Nickel, Dissolved 3410 | River water | 9 | Oct 2023 – Sep 2026 | 0.94 µg/l 8 Sep 2026 |
| Nitrite as N 0118 | River water | 19 | Oct 2023 – Sep 2026 | 0.017 mg/l 8 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 19 | Oct 2023 – Sep 2026 | 1.3 mg/l 8 Sep 2026 |
| pH : In Situ 3169 | River water | 2 | Jul 2026 – Sep 2026 | 8.13 8 Sep 2026 |
| Potassium 0211 | River water | 9 | Oct 2023 – Sep 2026 | 2.3 mg/l 8 Sep 2026 |
| Potassium, Dissolved 0209 | River water | 9 | Oct 2023 – Sep 2026 | 2.5 mg/l 8 Sep 2026 |
| Silica, reactive as SiO2 0182 | River water | 9 | Oct 2023 – Sep 2026 | 4 mg/l 8 Sep 2026 |
| Sodium 0207 | River water | 9 | Oct 2023 – Sep 2026 | 12 mg/l 8 Sep 2026 |
| Sodium, Dissolved 0205 | River water | 9 | Oct 2023 – Sep 2026 | 12 mg/l 8 Sep 2026 |
| Solids, Suspended at 105 C 0135 | River water | 9 | Oct 2023 – Sep 2026 | 9.9 mg/l 8 Sep 2026 |
| Strontium 6063 | River water | 9 | Oct 2023 – Sep 2026 | 240 µg/l 8 Sep 2026 |
| Strontium, Filtered 6693 | River water | 9 | Oct 2023 – Sep 2026 | 240 µg/l 8 Sep 2026 |
| Sulphate as SO4 0183 | River water | 9 | Oct 2023 – Sep 2026 | 25 mg/l 8 Sep 2026 |
| Sulphate, Dissolved as SO4 7859 | River water | 9 | Oct 2023 – Sep 2026 | 25 mg/l 8 Sep 2026 |
| Zinc 6455 | River water | 9 | Oct 2023 – Sep 2026 | 19 µg/l 8 Sep 2026 |
| Zinc : BLM Bioavailable 4822 | River water | 9 | Oct 2023 – Sep 2026 | 2.3 µg/l 8 Sep 2026 |
| Zinc, Dissolved 3408 | River water | 9 | Oct 2023 – Sep 2026 | 8.3 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.