Dunces Arch Footbridge upstream of Lyndhurst waste water treatment works
EA name: DUNCES ARCH FB U/S LYNDHURST WWTW (also listed as “DUNCES ARCH FOOTBRIDGE U/S LYNDHURST WWTW STORM, BEAULIEU R”)
Environment Agency sampling point SO-G0006950 · 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
- 1 Sep 2026, 14:5930 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 30 since 9 Apr 2024 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 430898, 109133As published, to the nearest 1 m. Open in a map
- River, by its own name
- Dunces Arch Fb
- River, by the map
- Not placedNearest line is 100 m away and its name does not agree. The river map cannot say which watercourse this is.
- Next gauge downstream
- Not known
- Why it was sampled
- Monitoring (national agency policy) (28 samples)
Planned investigation (national agency policy) (2 samples)
2 visits found no water to sample (recorded as “No flow”).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
22.6%
Sampled 2 Jul 2026, 3 months ago · 26 results banked
Every result (26)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jul 2026, 11:00 | 22.6 | 22.6% |
| 3 Jun 2026, 09:40 | 75.8 | 75.8% |
| 6 May 2026, 10:08 | 52.7 | 52.7% |
| 21 Apr 2026, 09:33 | 70.1 | 70.1% |
| 27 Mar 2026, 15:46 | 76 | 76% |
| 6 Feb 2026, 15:07 | 88.3 | 88.3% |
| 16 Jan 2026, 08:40 | 86.1 | 86.1% |
| 9 Dec 2025, 13:11 | 77.8 | 77.8% |
| 14 Nov 2025, 08:43 | 73.1 | 73.1% |
| 16 Oct 2025, 13:59 | 50.7 | 50.7% |
| 5 Sep 2025, 10:43 | 73 | 73% |
| 12 Aug 2025, 11:54 | 12.7 | 12.7% |
| 10 Jul 2025, 07:36 | 24.6 | 24.6% |
| 2 Jun 2025, 09:34 | 31.5 | 31.5% |
| 12 May 2025, 12:11 | 45.9 | 45.9% |
| 8 Apr 2025, 08:01 | 71.6 | 71.6% |
| 10 Mar 2025, 12:49 | 80.1 | 80.1% |
| 20 Feb 2025, 12:11 | 88.5 | 88.5% |
| 29 Jan 2025, 09:26 | 84.6 | 84.6% |
| 4 Dec 2024, 12:17 | 80.7 | 80.7% |
| 1 Nov 2024, 07:52 | 62.7 | 62.7% |
| 11 Oct 2024, 08:26 | 75 | 75% |
| 2 Sep 2024, 11:30 | 46.4 | 46.4% |
| 6 Aug 2024, 09:44 | 54.7 | 54.7% |
| 3 Jul 2024, 09:37 | 37.3 | 37.3% |
| 6 Jun 2024, 09:27 | 57.6 | 57.6% |
Dissolved oxygen
as O2 · code 9924 · mg/l
2.21 mg/l
Sampled 2 Jul 2026, 3 months ago · 26 results banked
Every result (26)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jul 2026, 11:00 | 2.21 | 2.21 mg/l |
| 3 Jun 2026, 09:40 | 7.83 | 7.83 mg/l |
| 6 May 2026, 10:08 | 5.79 | 5.79 mg/l |
| 21 Apr 2026, 09:33 | 8.23 | 8.23 mg/l |
| 27 Mar 2026, 15:46 | 8.73 | 8.73 mg/l |
| 6 Feb 2026, 15:07 | 10.1 | 10.1 mg/l |
| 16 Jan 2026, 08:40 | 10.7 | 10.7 mg/l |
| 9 Dec 2025, 13:11 | 8.52 | 8.52 mg/l |
| 14 Nov 2025, 08:43 | 7.72 | 7.72 mg/l |
| 16 Oct 2025, 13:59 | 5.44 | 5.44 mg/l |
| 5 Sep 2025, 10:43 | 7.42 | 7.42 mg/l |
| 12 Aug 2025, 11:54 | 1.23 | 1.23 mg/l |
| 10 Jul 2025, 07:36 | 2.5 | 2.5 mg/l |
| 2 Jun 2025, 09:34 | 3.39 | 3.39 mg/l |
| 12 May 2025, 12:11 | 4.84 | 4.84 mg/l |
| 8 Apr 2025, 08:01 | 8.68 | 8.68 mg/l |
| 10 Mar 2025, 12:49 | 9.07 | 9.07 mg/l |
| 20 Feb 2025, 12:11 | 10.2 | 10.2 mg/l |
| 29 Jan 2025, 09:26 | 10.5 | 10.5 mg/l |
| 4 Dec 2024, 12:17 | 10 | 10 mg/l |
| 1 Nov 2024, 07:52 | 6.82 | 6.82 mg/l |
| 11 Oct 2024, 08:26 | 8.49 | 8.49 mg/l |
| 2 Sep 2024, 11:30 | 4.45 | 4.45 mg/l |
| 6 Aug 2024, 09:44 | 5.33 | 5.33 mg/l |
| 3 Jul 2024, 09:37 | 3.88 | 3.88 mg/l |
| 6 Jun 2024, 09:27 | 6.28 | 6.28 mg/l |
Water temperature
code 0076 · °C
16.4 °C
Sampled 2 Jul 2026, 3 months ago · 26 results banked
Every result (26)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jul 2026, 11:00 | 16.4 | 16.4 °C |
| 3 Jun 2026, 09:40 | 13.8 | 13.8 °C |
| 6 May 2026, 10:08 | 11.1 | 11.1 °C |
| 21 Apr 2026, 09:33 | 8.3 | 8.3 °C |
| 27 Mar 2026, 15:46 | 9.2 | 9.2 °C |
| 6 Feb 2026, 15:07 | 9.4 | 9.4 °C |
| 16 Jan 2026, 08:40 | 5.9 | 5.9 °C |
| 9 Dec 2025, 13:11 | 11.2 | 11.2 °C |
| 14 Nov 2025, 08:43 | 12.8 | 12.8 °C |
| 16 Oct 2025, 13:59 | 12.1 | 12.1 °C |
| 5 Sep 2025, 10:43 | 14.5 | 14.5 °C |
| 12 Aug 2025, 11:54 | 16.8 | 16.8 °C |
| 10 Jul 2025, 07:36 | 14.6 | 14.6 °C |
| 2 Jun 2025, 09:34 | 12 | 12 °C |
| 12 May 2025, 12:11 | 12.9 | 12.9 °C |
| 8 Apr 2025, 08:01 | 7 | 7 °C |
| 10 Mar 2025, 12:49 | 9.8 | 9.8 °C |
| 20 Feb 2025, 12:11 | 9.1 | 9.1 °C |
| 29 Jan 2025, 09:26 | 6 | 6 °C |
| 4 Dec 2024, 12:17 | 6.1 | 6.1 °C |
| 1 Nov 2024, 07:52 | 11.5 | 11.5 °C |
| 11 Oct 2024, 08:26 | 9.8 | 9.8 °C |
| 2 Sep 2024, 11:30 | 17.2 | 17.2 °C |
| 6 Aug 2024, 09:44 | 16.5 | 16.5 °C |
| 3 Jul 2024, 09:37 | 13.5 | 13.5 °C |
| 6 Jun 2024, 09:27 | 11.4 | 11.4 °C |
pH
code 0061
7
Sampled 2 Jul 2026, 3 months ago · 26 results banked
Every result (26)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jul 2026, 11:00 | 7 | 7 |
| 3 Jun 2026, 09:40 | 6.59 | 6.59 |
| 6 May 2026, 10:08 | 6.84 | 6.84 |
| 21 Apr 2026, 09:33 | 6.85 | 6.85 |
| 27 Mar 2026, 15:46 | 6.93 | 6.93 |
| 6 Feb 2026, 15:07 | 6.79 | 6.79 |
| 16 Jan 2026, 08:40 | 6.76 | 6.76 |
| 9 Dec 2025, 13:11 | 6.34 | 6.34 |
| 14 Nov 2025, 08:43 | 6.45 | 6.45 |
| 16 Oct 2025, 13:59 | 6.44 | 6.44 |
| 5 Sep 2025, 10:43 | 6.4 | 6.4 |
| 12 Aug 2025, 11:54 | 6.99 | 6.99 |
| 10 Jul 2025, 07:36 | 6.99 | 6.99 |
| 2 Jun 2025, 09:34 | 7.06 | 7.06 |
| 12 May 2025, 12:11 | 6.88 | 6.88 |
| 8 Apr 2025, 08:01 | 7.05 | 7.05 |
| 10 Mar 2025, 12:49 | 7.08 | 7.08 |
| 20 Feb 2025, 12:11 | 7.88 | 7.88 |
| 29 Jan 2025, 09:26 | 7.18 | 7.18 |
| 4 Dec 2024, 12:17 | 6.93 | 6.93 |
| 1 Nov 2024, 07:52 | 6.77 | 6.77 |
| 11 Oct 2024, 08:26 | 6.63 | 6.63 |
| 2 Sep 2024, 11:30 | 7.1 | 7.1 |
| 6 Aug 2024, 09:44 | 7.1 | 7.1 |
| 3 Jul 2024, 09:37 | 7.22 | 7.22 |
| 6 Jun 2024, 09:27 | 7.23 | 7.23 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.097 mg/l
Sampled 2 Jul 2026, 3 months ago · 26 results banked
Every result (26)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jul 2026, 11:00 | 0.097 | 0.097 mg/l |
| 3 Jun 2026, 09:40 | 0.097 | 0.097 mg/l |
| 6 May 2026, 10:08 | 0.1 | 0.1 mg/l |
| 21 Apr 2026, 09:33 | 0.11 | 0.11 mg/l |
| 27 Mar 2026, 15:46 | 0.092 | 0.092 mg/l |
| 6 Feb 2026, 15:07 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Jan 2026, 08:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 9 Dec 2025, 13:11 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Nov 2025, 08:43 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Oct 2025, 13:59 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Sep 2025, 10:43 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Aug 2025, 11:54 | 0.47 | 0.47 mg/l |
| 10 Jul 2025, 07:36 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Jun 2025, 09:34 | 0.24 | 0.24 mg/l |
| 12 May 2025, 12:11 | 0.15 | 0.15 mg/l |
| 8 Apr 2025, 08:01 | 0.14 | 0.14 mg/l |
| 10 Mar 2025, 12:49 | 0.12 | 0.12 mg/l |
| 20 Feb 2025, 12:11 | 0.14 | 0.14 mg/l |
| 29 Jan 2025, 09:26 | 0.086 | 0.086 mg/l |
| 4 Dec 2024, 12:17 | 0.1 | 0.1 mg/l |
| 1 Nov 2024, 07:52 | 0.1 | 0.1 mg/l |
| 11 Oct 2024, 08:26 | 0.033 | 0.033 mg/l |
| 2 Sep 2024, 11:30 | 0.034 | 0.034 mg/l |
| 6 Aug 2024, 09:44 | 0.058 | 0.058 mg/l |
| 3 Jul 2024, 09:37 | 0.087 | 0.087 mg/l |
| 6 Jun 2024, 09:27 | 0.076 | 0.076 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
below 0.196 mg/l (not detected above this)
Sampled 2 Jul 2026, 3 months ago · 25 results banked
Every result (25)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jul 2026, 11:00 | <0.196 | below 0.196 mg/l (not detected above this) |
| 3 Jun 2026, 09:40 | 0.59 | 0.59 mg/l |
| 6 May 2026, 10:08 | 0.216 | 0.216 mg/l |
| 21 Apr 2026, 09:33 | 0.276 | 0.276 mg/l |
| 27 Mar 2026, 15:46 | 0.226 | 0.226 mg/l |
| 6 Feb 2026, 15:07 | 0.296 | 0.296 mg/l |
| 16 Jan 2026, 08:40 | 0.366 | 0.366 mg/l |
| 9 Dec 2025, 13:11 | 0.236 | 0.236 mg/l |
| 14 Nov 2025, 08:43 | <0.196 | below 0.196 mg/l (not detected above this) |
| 16 Oct 2025, 13:59 | <0.196 | below 0.196 mg/l (not detected above this) |
| 5 Sep 2025, 10:43 | 0.526 | 0.526 mg/l |
| 12 Aug 2025, 11:54 | <0.196 | below 0.196 mg/l (not detected above this) |
| 10 Jul 2025, 07:36 | <0.196 | below 0.196 mg/l (not detected above this) |
| 2 Jun 2025, 09:34 | <0.196 | below 0.196 mg/l (not detected above this) |
| 12 May 2025, 12:11 | 0.206 | 0.206 mg/l |
| 8 Apr 2025, 08:01 | <0.196 | below 0.196 mg/l (not detected above this) |
| 10 Mar 2025, 12:49 | <0.196 | below 0.196 mg/l (not detected above this) |
| 20 Feb 2025, 12:11 | <0.196 | below 0.196 mg/l (not detected above this) |
| 29 Jan 2025, 09:26 | 0.316 | 0.316 mg/l |
| 1 Nov 2024, 07:52 | <0.196 | below 0.196 mg/l (not detected above this) |
| 11 Oct 2024, 08:26 | <0.196 | below 0.196 mg/l (not detected above this) |
| 2 Sep 2024, 11:30 | <0.196 | below 0.196 mg/l (not detected above this) |
| 6 Aug 2024, 09:44 | <0.196 | below 0.196 mg/l (not detected above this) |
| 3 Jul 2024, 09:37 | 0.192 | 0.192 mg/l |
| 6 Jun 2024, 09:27 | 0.246 | 0.246 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.033 mg/l
Sampled 2 Jul 2026, 3 months ago · 26 results banked
Every result (26)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jul 2026, 11:00 | 0.033 | 0.033 mg/l |
| 3 Jun 2026, 09:40 | 0.017 | 0.017 mg/l |
| 6 May 2026, 10:08 | 0.049 | 0.049 mg/l |
| 21 Apr 2026, 09:33 | 0.039 | 0.039 mg/l |
| 27 Mar 2026, 15:46 | 0.028 | 0.028 mg/l |
| 6 Feb 2026, 15:07 | 0.029 | 0.029 mg/l |
| 16 Jan 2026, 08:40 | 0.03 | 0.03 mg/l |
| 9 Dec 2025, 13:11 | 0.017 | 0.017 mg/l |
| 14 Nov 2025, 08:43 | <0.01 | below 0.01 mg/l (not detected above this) |
| 16 Oct 2025, 13:59 | <0.01 | below 0.01 mg/l (not detected above this) |
| 5 Sep 2025, 10:43 | <0.01 | below 0.01 mg/l (not detected above this) |
| 12 Aug 2025, 11:54 | 0.03 | 0.03 mg/l |
| 10 Jul 2025, 07:36 | 0.052 | 0.052 mg/l |
| 2 Jun 2025, 09:34 | 0.046 | 0.046 mg/l |
| 12 May 2025, 12:11 | 0.039 | 0.039 mg/l |
| 8 Apr 2025, 08:01 | 0.05 | 0.05 mg/l |
| 10 Mar 2025, 12:49 | 0.028 | 0.028 mg/l |
| 20 Feb 2025, 12:11 | 0.012 | 0.012 mg/l |
| 29 Jan 2025, 09:26 | 0.023 | 0.023 mg/l |
| 4 Dec 2024, 12:17 | 0.016 | 0.016 mg/l |
| 1 Nov 2024, 07:52 | 0.016 | 0.016 mg/l |
| 11 Oct 2024, 08:26 | 0.021 | 0.021 mg/l |
| 2 Sep 2024, 11:30 | 0.035 | 0.035 mg/l |
| 6 Aug 2024, 09:44 | 0.042 | 0.042 mg/l |
| 3 Jul 2024, 09:37 | 0.026 | 0.026 mg/l |
| 6 Jun 2024, 09:27 | 0.066 | 0.066 mg/l |
Turbidity
code 6396 · NTU
8.1 NTU
Sampled 27 Mar 2026, 6 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 27 Mar 2026, 15:46 | 8.1 | 8.1 NTU |
| 6 Feb 2026, 15:07 | 4.8 | 4.8 NTU |
| 16 Jan 2026, 08:40 | 4 | 4 NTU |
| 9 Dec 2025, 13:11 | 5.6 | 5.6 NTU |
| 14 Nov 2025, 08:43 | 3.7 | 3.7 NTU |
| 16 Oct 2025, 13:59 | 21 | 21 NTU |
| 12 Aug 2025, 11:54 | 70 | 70 NTU |
| 10 Jul 2025, 07:36 | 63 | 63 NTU |
| 2 Jun 2025, 09:34 | 43 | 43 NTU |
| 12 May 2025, 12:11 | 36 | 36 NTU |
| 8 Apr 2025, 08:01 | 16 | 16 NTU |
| 10 Mar 2025, 12:49 | 13 | 13 NTU |
| 20 Feb 2025, 12:11 | 17 | 17 NTU |
| 29 Jan 2025, 09:26 | 6.8 | 6.8 NTU |
| 4 Dec 2024, 12:17 | 6.5 | 6.5 NTU |
| 1 Nov 2024, 07:52 | 7.8 | 7.8 NTU |
| 11 Oct 2024, 08:26 | 4.1 | 4.1 NTU |
| 2 Sep 2024, 11:30 | 34 | 34 NTU |
| 6 Aug 2024, 09:44 | 60 | 60 NTU |
| 3 Jul 2024, 09:37 | 83 | 83 NTU |
| 6 Jun 2024, 09:27 | 22 | 22 NTU |
| 9 May 2024, 11:07 | 12 | 12 NTU |
| 9 Apr 2024, 12:21 | 11 | 11 NTU |
Conductivity
at 25 °C · code 0077 · µS/cm
385 µS/cm
Sampled 2 Jul 2026, 3 months ago · 26 results banked
Every result (26)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jul 2026, 11:00 | 385 | 385 µS/cm |
| 3 Jun 2026, 09:40 | 301 | 301 µS/cm |
| 6 May 2026, 10:08 | 344 | 344 µS/cm |
| 21 Apr 2026, 09:33 | 309 | 309 µS/cm |
| 27 Mar 2026, 15:46 | 266 | 266 µS/cm |
| 6 Feb 2026, 15:07 | 123 | 123 µS/cm |
| 16 Jan 2026, 08:40 | 173 | 173 µS/cm |
| 9 Dec 2025, 13:11 | 140 | 140 µS/cm |
| 14 Nov 2025, 08:43 | 278 | 278 µS/cm |
| 16 Oct 2025, 13:59 | 493 | 493 µS/cm |
| 5 Sep 2025, 10:43 | 512 | 512 µS/cm |
| 12 Aug 2025, 11:54 | 449 | 449 µS/cm |
| 10 Jul 2025, 07:36 | 392 | 392 µS/cm |
| 2 Jun 2025, 09:34 | 358 | 358 µS/cm |
| 12 May 2025, 12:11 | 345 | 345 µS/cm |
| 8 Apr 2025, 08:01 | 325 | 325 µS/cm |
| 10 Mar 2025, 12:49 | 278 | 278 µS/cm |
| 20 Feb 2025, 12:11 | 309 | 309 µS/cm |
| 29 Jan 2025, 09:26 | 221 | 221 µS/cm |
| 4 Dec 2024, 12:17 | 246 | 246 µS/cm |
| 1 Nov 2024, 07:52 | 293 | 293 µS/cm |
| 11 Oct 2024, 08:26 | 236 | 236 µS/cm |
| 2 Sep 2024, 11:30 | 389 | 389 µS/cm |
| 6 Aug 2024, 09:44 | 337 | 337 µS/cm |
| 3 Jul 2024, 09:37 | 374 | 374 µS/cm |
| 6 Jun 2024, 09:27 | 344 | 344 µS/cm |
Everything measured here
17 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 17 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 26 | Jun 2024 – Jul 2026 | 22.6% 2 Jul 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 26 | Jun 2024 – Jul 2026 | 2.21 mg/l 2 Jul 2026 |
| Temperature of Water 0076 | River water | 26 | Jun 2024 – Jul 2026 | 16.4 °C 2 Jul 2026 |
| pH 0061 | River water | 26 | Jun 2024 – Jul 2026 | 7 2 Jul 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 26 | Jun 2024 – Jul 2026 | 0.097 mg/l 2 Jul 2026 |
| Nitrate as N 0117 | River water | 25 | Jun 2024 – Jul 2026 | below 0.196 mg/l 2 Jul 2026 |
| Orthophosphate, reactive as P 0180 | River water | 26 | Jun 2024 – Jul 2026 | 0.033 mg/l 2 Jul 2026 |
| Turbidity 6396 | River water | 23 | Apr 2024 – Mar 2026 | 8.1 NTU 27 Mar 2026 |
| Conductivity at 25 C 0077 | River water | 26 | Jun 2024 – Jul 2026 | 385 µS/cm 2 Jul 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 26 | Jun 2024 – Jul 2026 | 150 mg/l 2 Jul 2026 |
| Ammonia un-ionised as N 0119 | River water | 26 | Jun 2024 – Jul 2026 | 0.00029 mg/l 2 Jul 2026 |
| BOD : 5 Day ATU 0085 | River water | 25 | Jun 2024 – Jul 2026 | below 3 mg/l 2 Jul 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 26 | Jun 2024 – Jul 2026 | 5.9 mg/l 2 Jul 2026 |
| Nitrite as N 0118 | River water | 26 | Jun 2024 – Jul 2026 | below 0.004 mg/l 2 Jul 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 25 | Jun 2024 – Jul 2026 | below 0.2 mg/l 2 Jul 2026 |
| No flow /No sample 7668 | River water | 2 | Aug 2026 – Sep 2026 | No flow/discharge at sampling point 1 Sep 2026 |
| Solids, Suspended at 105 C 0135 | River water | 26 | Jun 2024 – Jul 2026 | 58 mg/l 2 Jul 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.