Marden Sprays Farm
EA name: MARDEN SPRAYS FARM (also listed as “RIVER MARDEN AT SPRAYS FARM”)
Environment Agency sampling point SW-Z8480201 · 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, 13:3323 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 21 since 19 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 402237, 168744As published, to the nearest 1 m. Open in a map
- River, by its own name
- Marden
- River, by the map
- River MardenPlaced on the river its name gives, 3 m from the line.
- Next gauge downstream
- Calne On the River Marden · 4.3 km along the river
- Why it was sampled
- Monitoring (national agency policy) (21 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
95.7%
Sampled 8 Sep 2026, 23 days ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 13:33 | 95.7 | 95.7% |
| 3 Aug 2026, 11:38 | 97.2 | 97.2% |
| 8 Jul 2026, 11:51 | 106.4 | 106.4% |
| 9 Jun 2026, 12:42 | 105.2 | 105.2% |
| 5 May 2026, 12:31 | 102.4 | 102.4% |
| 10 Apr 2026, 12:30 | 103.4 | 103.4% |
| 11 Mar 2026, 12:41 | 101.1 | 101.1% |
| 17 Feb 2026, 09:34 | 102.1 | 102.1% |
| 28 Jan 2026, 14:56 | 101.4 | 101.4% |
| 3 Dec 2025, 10:58 | 97.7 | 97.7% |
| 11 Nov 2025, 12:37 | 94.5 | 94.5% |
| 28 Oct 2025, 09:28 | 88.6 | 88.6% |
| 4 Sep 2025, 14:38 | 11.9 | 11.9% |
| 14 Aug 2025, 11:39 | 101.1 | 101.1% |
| 2 Apr 2025, 13:07 | 98.1 | 98.1% |
| 1 Mar 2024, 12:48 | 99.8 | 99.8% |
| 1 Feb 2024, 09:37 | 99.2 | 99.2% |
| 12 Jan 2024, 12:22 | 101.5 | 101.5% |
| 4 Dec 2023, 08:37 | 99 | 99% |
| 10 Nov 2023, 10:37 | 97.8 | 97.8% |
| 19 Oct 2023, 09:39 | 96.1 | 96.1% |
Dissolved oxygen
as O2 · code 9924 · mg/l
10.3 mg/l
Sampled 8 Sep 2026, 23 days ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 13:33 | 10.3 | 10.3 mg/l |
| 3 Aug 2026, 11:38 | 10.3 | 10.3 mg/l |
| 8 Jul 2026, 11:51 | 11.1 | 11.1 mg/l |
| 9 Jun 2026, 12:42 | 11.4 | 11.4 mg/l |
| 5 May 2026, 12:31 | 11.1 | 11.1 mg/l |
| 10 Apr 2026, 12:30 | 11.5 | 11.5 mg/l |
| 11 Mar 2026, 12:41 | 11.2 | 11.2 mg/l |
| 17 Feb 2026, 09:34 | 11.9 | 11.9 mg/l |
| 28 Jan 2026, 14:56 | 11.5 | 11.5 mg/l |
| 3 Dec 2025, 10:58 | 11.4 | 11.4 mg/l |
| 11 Nov 2025, 12:37 | 10.4 | 10.4 mg/l |
| 28 Oct 2025, 09:28 | 9.93 | 9.93 mg/l |
| 4 Sep 2025, 14:38 | 1.28 | 1.28 mg/l |
| 14 Aug 2025, 11:39 | 10.6 | 10.6 mg/l |
| 2 Apr 2025, 13:07 | 11.3 | 11.3 mg/l |
| 1 Mar 2024, 12:48 | 11.3 | 11.3 mg/l |
| 1 Feb 2024, 09:37 | 11.1 | 11.1 mg/l |
| 12 Jan 2024, 12:22 | 11.5 | 11.5 mg/l |
| 4 Dec 2023, 08:37 | 11.2 | 11.2 mg/l |
| 10 Nov 2023, 10:37 | 11 | 11 mg/l |
| 19 Oct 2023, 09:39 | 10.4 | 10.4 mg/l |
Water temperature
code 0076 · °C
12 °C
Sampled 8 Sep 2026, 23 days ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 13:33 | 12 | 12 °C |
| 3 Aug 2026, 11:38 | 12.7 | 12.7 °C |
| 8 Jul 2026, 11:51 | 13.2 | 13.2 °C |
| 9 Jun 2026, 12:42 | 11.5 | 11.5 °C |
| 5 May 2026, 12:31 | 11.8 | 11.8 °C |
| 10 Apr 2026, 12:30 | 10.5 | 10.5 °C |
| 11 Mar 2026, 12:41 | 10.7 | 10.7 °C |
| 17 Feb 2026, 09:34 | 8.7 | 8.7 °C |
| 28 Jan 2026, 14:56 | 9.7 | 9.7 °C |
| 3 Dec 2025, 10:58 | 8.5 | 8.5 °C |
| 11 Nov 2025, 12:37 | 11.1 | 11.1 °C |
| 28 Oct 2025, 09:28 | 10.2 | 10.2 °C |
| 4 Sep 2025, 14:38 | 11.9 | 11.9 °C |
| 14 Aug 2025, 11:39 | 13.1 | 13.1 °C |
| 2 Apr 2025, 13:07 | 9.1 | 9.1 °C |
| 1 Mar 2024, 12:48 | 9.8 | 9.8 °C |
| 1 Feb 2024, 09:37 | 10.4 | 10.4 °C |
| 12 Jan 2024, 12:22 | 9.6 | 9.6 °C |
| 4 Dec 2023, 08:37 | 9.8 | 9.8 °C |
| 10 Nov 2023, 10:37 | 10 | 10 °C |
| 19 Oct 2023, 09:39 | 11.7 | 11.7 °C |
pH
code 0061
7.96
Sampled 8 Sep 2026, 23 days ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 13:33 | 7.96 | 7.96 |
| 3 Aug 2026, 11:38 | 7.83 | 7.83 |
| 8 Jul 2026, 11:51 | 7.84 | 7.84 |
| 9 Jun 2026, 12:42 | 7.92 | 7.92 |
| 5 May 2026, 12:31 | 8.13 | 8.13 |
| 10 Apr 2026, 12:30 | 7.84 | 7.84 |
| 11 Mar 2026, 12:41 | 7.87 | 7.87 |
| 17 Feb 2026, 09:34 | 7.88 | 7.88 |
| 28 Jan 2026, 14:56 | 7.78 | 7.78 |
| 3 Dec 2025, 10:58 | 7.98 | 7.98 |
| 11 Nov 2025, 12:37 | 7.91 | 7.91 |
| 28 Oct 2025, 09:28 | 7.82 | 7.82 |
| 4 Sep 2025, 14:38 | 7.74 | 7.74 |
| 14 Aug 2025, 11:39 | 8.2 | 8.2 |
| 2 Apr 2025, 13:07 | 8.17 | 8.17 |
| 1 Mar 2024, 12:48 | 7.84 | 7.84 |
| 1 Feb 2024, 09:37 | 7.85 | 7.85 |
| 12 Jan 2024, 12:22 | 7.88 | 7.88 |
| 4 Dec 2023, 08:37 | 7.77 | 7.77 |
| 10 Nov 2023, 10:37 | 7.71 | 7.71 |
| 19 Oct 2023, 09:39 | 7.57 | 7.57 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 8 Sep 2026, 23 days ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 13:33 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Aug 2026, 11:38 | <0.03 | below 0.03 mg/l (not detected above this) |
| 8 Jul 2026, 11:51 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Jun 2026, 12:42 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 May 2026, 12:31 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Apr 2026, 12:30 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Mar 2026, 12:41 | <0.03 | below 0.03 mg/l (not detected above this) |
| 17 Feb 2026, 09:34 | <0.03 | below 0.03 mg/l (not detected above this) |
| 28 Jan 2026, 14:56 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Dec 2025, 10:58 | <0.03 | below 0.03 mg/l (not detected above this) |
| 11 Nov 2025, 12:37 | <0.03 | below 0.03 mg/l (not detected above this) |
| 28 Oct 2025, 09:28 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Sep 2025, 14:38 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Aug 2025, 11:39 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Apr 2025, 13:07 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Mar 2024, 12:48 | <0.03 | below 0.03 mg/l (not detected above this) |
| 1 Feb 2024, 09:37 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Jan 2024, 12:22 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Dec 2023, 08:37 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Nov 2023, 10:37 | 0.042 | 0.042 mg/l |
| 19 Oct 2023, 09:39 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
6.19 mg/l
Sampled 8 Sep 2026, 23 days ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 13:33 | 6.19 | 6.19 mg/l |
| 3 Aug 2026, 11:38 | 6.59 | 6.59 mg/l |
| 8 Jul 2026, 11:51 | 6.59 | 6.59 mg/l |
| 9 Jun 2026, 12:42 | 7.09 | 7.09 mg/l |
| 5 May 2026, 12:31 | 7.59 | 7.59 mg/l |
| 10 Apr 2026, 12:30 | 7.69 | 7.69 mg/l |
| 11 Mar 2026, 12:41 | 7.8 | 7.8 mg/l |
| 17 Feb 2026, 09:34 | 8.1 | 8.1 mg/l |
| 28 Jan 2026, 14:56 | 7.8 | 7.8 mg/l |
| 3 Dec 2025, 10:58 | 5.99 | 5.99 mg/l |
| 11 Nov 2025, 12:37 | 5.78 | 5.78 mg/l |
| 28 Oct 2025, 09:28 | 5.99 | 5.99 mg/l |
| 4 Sep 2025, 14:38 | 6.49 | 6.49 mg/l |
| 14 Aug 2025, 11:39 | 6.69 | 6.69 mg/l |
| 2 Apr 2025, 13:07 | 7.9 | 7.9 mg/l |
| 1 Mar 2024, 12:48 | 7.69 | 7.69 mg/l |
| 1 Feb 2024, 09:37 | 7.7 | 7.7 mg/l |
| 12 Jan 2024, 12:22 | 8.4 | 8.4 mg/l |
| 4 Dec 2023, 08:37 | 7.1 | 7.1 mg/l |
| 10 Nov 2023, 10:37 | 6.79 | 6.79 mg/l |
| 19 Oct 2023, 09:39 | 5.19 | 5.19 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.038 mg/l
Sampled 8 Sep 2026, 23 days ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 13:33 | 0.038 | 0.038 mg/l |
| 3 Aug 2026, 11:38 | 0.019 | 0.019 mg/l |
| 8 Jul 2026, 11:51 | 0.025 | 0.025 mg/l |
| 9 Jun 2026, 12:42 | 0.018 | 0.018 mg/l |
| 5 May 2026, 12:31 | 0.022 | 0.022 mg/l |
| 10 Apr 2026, 12:30 | 0.028 | 0.028 mg/l |
| 11 Mar 2026, 12:41 | 0.023 | 0.023 mg/l |
| 17 Feb 2026, 09:34 | 0.027 | 0.027 mg/l |
| 28 Jan 2026, 14:56 | 0.025 | 0.025 mg/l |
| 3 Dec 2025, 10:58 | 0.029 | 0.029 mg/l |
| 11 Nov 2025, 12:37 | 0.025 | 0.025 mg/l |
| 28 Oct 2025, 09:28 | 0.017 | 0.017 mg/l |
| 4 Sep 2025, 14:38 | 0.016 | 0.016 mg/l |
| 14 Aug 2025, 11:39 | 0.014 | 0.014 mg/l |
| 2 Apr 2025, 13:07 | 0.014 | 0.014 mg/l |
| 1 Mar 2024, 12:48 | 0.039 | 0.039 mg/l |
| 1 Feb 2024, 09:37 | 0.025 | 0.025 mg/l |
| 12 Jan 2024, 12:22 | 0.029 | 0.029 mg/l |
| 4 Dec 2023, 08:37 | 0.046 | 0.046 mg/l |
| 10 Nov 2023, 10:37 | 0.039 | 0.039 mg/l |
| 19 Oct 2023, 09:39 | 0.1 | 0.1 mg/l |
Turbidity
code 6396 · NTU
below 1 NTU (not detected above this)
Sampled 11 Mar 2026, 7 months ago · 14 results banked
Every result (14)
| Sampled | Result as published | Reads as |
|---|---|---|
| 11 Mar 2026, 12:41 | <1 | below 1 NTU (not detected above this) |
| 17 Feb 2026, 09:34 | 1 | 1 NTU |
| 28 Jan 2026, 14:56 | 1.9 | 1.9 NTU |
| 3 Dec 2025, 10:58 | 1.7 | 1.7 NTU |
| 11 Nov 2025, 12:37 | 4.3 | 4.3 NTU |
| 28 Oct 2025, 09:28 | 1.1 | 1.1 NTU |
| 14 Aug 2025, 11:39 | <1 | below 1 NTU (not detected above this) |
| 2 Apr 2025, 13:07 | <1 | below 1 NTU (not detected above this) |
| 1 Mar 2024, 12:48 | 8.2 | 8.2 NTU |
| 1 Feb 2024, 09:37 | 1.3 | 1.3 NTU |
| 12 Jan 2024, 12:22 | 5.3 | 5.3 NTU |
| 4 Dec 2023, 08:37 | 10 | 10 NTU |
| 10 Nov 2023, 10:37 | 14 | 14 NTU |
| 19 Oct 2023, 09:39 | 37 | 37 NTU |
Conductivity
at 25 °C · code 0077 · µS/cm
639 µS/cm
Sampled 8 Sep 2026, 23 days ago · 21 results banked
Every result (21)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Sep 2026, 13:33 | 639 | 639 µS/cm |
| 3 Aug 2026, 11:38 | 646 | 646 µS/cm |
| 8 Jul 2026, 11:51 | 642 | 642 µS/cm |
| 9 Jun 2026, 12:42 | 642 | 642 µS/cm |
| 5 May 2026, 12:31 | 636 | 636 µS/cm |
| 10 Apr 2026, 12:30 | 631 | 631 µS/cm |
| 11 Mar 2026, 12:41 | 638 | 638 µS/cm |
| 17 Feb 2026, 09:34 | 639 | 639 µS/cm |
| 28 Jan 2026, 14:56 | 633 | 633 µS/cm |
| 3 Dec 2025, 10:58 | 634 | 634 µS/cm |
| 11 Nov 2025, 12:37 | 645 | 645 µS/cm |
| 28 Oct 2025, 09:28 | 643 | 643 µS/cm |
| 4 Sep 2025, 14:38 | 632 | 632 µS/cm |
| 14 Aug 2025, 11:39 | 635 | 635 µS/cm |
| 2 Apr 2025, 13:07 | 677 | 677 µS/cm |
| 1 Mar 2024, 12:48 | 625 | 625 µS/cm |
| 1 Feb 2024, 09:37 | 637 | 637 µS/cm |
| 12 Jan 2024, 12:22 | 637 | 637 µS/cm |
| 4 Dec 2023, 08:37 | 623 | 623 µS/cm |
| 10 Nov 2023, 10:37 | 610 | 610 µS/cm |
| 19 Oct 2023, 09:39 | 572 | 572 µS/cm |
Everything measured here
15 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 15 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 21 | Oct 2023 – Sep 2026 | 95.7% 8 Sep 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 21 | Oct 2023 – Sep 2026 | 10.3 mg/l 8 Sep 2026 |
| Temperature of Water 0076 | River water | 21 | Oct 2023 – Sep 2026 | 12 °C 8 Sep 2026 |
| pH 0061 | River water | 21 | Oct 2023 – Sep 2026 | 7.96 8 Sep 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 21 | Oct 2023 – Sep 2026 | below 0.03 mg/l 8 Sep 2026 |
| Nitrate as N 0117 | River water | 21 | Oct 2023 – Sep 2026 | 6.19 mg/l 8 Sep 2026 |
| Orthophosphate, reactive as P 0180 | River water | 21 | Oct 2023 – Sep 2026 | 0.038 mg/l 8 Sep 2026 |
| Turbidity 6396 | River water | 14 | Oct 2023 – Mar 2026 | below 1 NTU 11 Mar 2026 |
| Conductivity at 25 C 0077 | River water | 21 | Oct 2023 – Sep 2026 | 639 µS/cm 8 Sep 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 21 | Oct 2023 – Sep 2026 | 250 mg/l 8 Sep 2026 |
| Ammonia un-ionised as N 0119 | River water | 21 | Oct 2023 – Sep 2026 | below 0.00058 mg/l 8 Sep 2026 |
| Chlorophyll : Acetone Extract 7887 | River water | 12 | Oct 2023 – Mar 2026 | below 0.5 µg/l 11 Mar 2026 |
| Nitrite as N 0118 | River water | 21 | Oct 2023 – Sep 2026 | 0.014 mg/l 8 Sep 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 21 | Oct 2023 – Sep 2026 | 6.2 mg/l 8 Sep 2026 |
| Solids, Suspended at 105 C 0135 | River water | 15 | Oct 2023 – Mar 2026 | 3.2 mg/l 11 Mar 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.