Highland Water Portuguese Fireplace
EA name: HIGHLAND WATER PORTUGUESE FIREPLACE (also listed as “RSN1653 HIGHLAND WATER PORTUGUESE FIREPLACE”)
Environment Agency sampling point SO-RSN1653 · 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, 12:0030 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 21 since 9 Jan 2025 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 426988, 107563As published, to the nearest 1 m. Open in a map
- River, by its own name
- Highland Water
- River, by the map
- Highland WaterPlaced on the river its name gives, 1 m from the line.
- Next gauge downstream
- Brockenhurst On the Lymington · 9.7 km along the river
- Why it was sampled
- Monitoring (national agency policy) (21 samples)
2 visits found no water to sample (recorded as “No flow”).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
58.7%
Sampled 2 Jul 2026, 3 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jul 2026, 11:32 | 58.7 | 58.7% |
| 3 Jun 2026, 15:16 | 89.5 | 89.5% |
| 12 May 2026, 08:23 | 84.1 | 84.1% |
| 17 Apr 2026, 16:57 | 95.2 | 95.2% |
| 4 Mar 2026, 10:11 | 96.3 | 96.3% |
| 6 Feb 2026, 14:03 | 97.9 | 97.9% |
| 16 Jan 2026, 10:51 | 95.8 | 95.8% |
| 9 Dec 2025, 12:51 | 90.6 | 90.6% |
| 14 Nov 2025, 11:03 | 92.5 | 92.5% |
| 16 Oct 2025, 13:17 | 85.5 | 85.5% |
| 5 Sep 2025, 10:06 | 92.3 | 92.3% |
| 8 Aug 2025, 09:33 | 47.8 | 47.8% |
| 10 Jul 2025, 10:11 | 51.5 | 51.5% |
| 2 Jun 2025, 12:04 | 79.5 | 79.5% |
| 12 May 2025, 11:29 | 83.9 | 83.9% |
| 8 Apr 2025, 14:10 | 96 | 96% |
| 13 Mar 2025, 14:09 | 98 | 98% |
| 14 Feb 2025, 12:30 | 94.8 | 94.8% |
| 9 Jan 2025, 11:50 | 95.3 | 95.3% |
Dissolved oxygen
as O2 · code 9924 · mg/l
5.66 mg/l
Sampled 2 Jul 2026, 3 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jul 2026, 11:32 | 5.66 | 5.66 mg/l |
| 3 Jun 2026, 15:16 | 8.98 | 8.98 mg/l |
| 12 May 2026, 08:23 | 9.77 | 9.77 mg/l |
| 17 Apr 2026, 16:57 | 10 | 10 mg/l |
| 4 Mar 2026, 10:11 | 11.4 | 11.4 mg/l |
| 6 Feb 2026, 14:03 | 11.3 | 11.3 mg/l |
| 16 Jan 2026, 10:51 | 12 | 12 mg/l |
| 9 Dec 2025, 12:51 | 9.99 | 9.99 mg/l |
| 14 Nov 2025, 11:03 | 9.85 | 9.85 mg/l |
| 16 Oct 2025, 13:17 | 9.17 | 9.17 mg/l |
| 5 Sep 2025, 10:06 | 9.47 | 9.47 mg/l |
| 8 Aug 2025, 09:33 | 4.81 | 4.81 mg/l |
| 10 Jul 2025, 10:11 | 5.17 | 5.17 mg/l |
| 2 Jun 2025, 12:04 | 8.17 | 8.17 mg/l |
| 12 May 2025, 11:29 | 8.78 | 8.78 mg/l |
| 8 Apr 2025, 14:10 | 10.8 | 10.8 mg/l |
| 13 Mar 2025, 14:09 | 12.1 | 12.1 mg/l |
| 14 Feb 2025, 12:30 | 12.2 | 12.2 mg/l |
| 9 Jan 2025, 11:50 | 12.8 | 12.8 mg/l |
Water temperature
code 0076 · °C
17 °C
Sampled 2 Jul 2026, 3 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jul 2026, 11:32 | 17 | 17 °C |
| 3 Jun 2026, 15:16 | 15.1 | 15.1 °C |
| 12 May 2026, 08:23 | 8.7 | 8.7 °C |
| 17 Apr 2026, 16:57 | 13 | 13 °C |
| 4 Mar 2026, 10:11 | 7.9 | 7.9 °C |
| 6 Feb 2026, 14:03 | 8.9 | 8.9 °C |
| 16 Jan 2026, 10:51 | 5.6 | 5.6 °C |
| 9 Dec 2025, 12:51 | 10.9 | 10.9 °C |
| 14 Nov 2025, 11:03 | 12.4 | 12.4 °C |
| 16 Oct 2025, 13:17 | 12.1 | 12.1 °C |
| 5 Sep 2025, 10:06 | 14.1 | 14.1 °C |
| 8 Aug 2025, 09:33 | 15 | 15 °C |
| 10 Jul 2025, 10:11 | 15.1 | 15.1 °C |
| 2 Jun 2025, 12:04 | 14 | 14 °C |
| 12 May 2025, 11:29 | 13.2 | 13.2 °C |
| 8 Apr 2025, 14:10 | 10.1 | 10.1 °C |
| 13 Mar 2025, 14:09 | 6.1 | 6.1 °C |
| 14 Feb 2025, 12:30 | 4.5 | 4.5 °C |
| 9 Jan 2025, 11:50 | 2.9 | 2.9 °C |
pH
code 0061
7.07
Sampled 2 Jul 2026, 3 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jul 2026, 11:32 | 7.07 | 7.07 |
| 3 Jun 2026, 15:16 | 7.04 | 7.04 |
| 12 May 2026, 08:23 | 7.24 | 7.24 |
| 17 Apr 2026, 16:57 | 7.05 | 7.05 |
| 4 Mar 2026, 10:11 | 6.92 | 6.92 |
| 6 Feb 2026, 14:03 | 6.51 | 6.51 |
| 16 Jan 2026, 10:51 | 6.48 | 6.48 |
| 9 Dec 2025, 12:51 | 6.44 | 6.44 |
| 14 Nov 2025, 11:03 | 6.49 | 6.49 |
| 16 Oct 2025, 13:17 | 7 | 7 |
| 5 Sep 2025, 10:06 | 6.82 | 6.82 |
| 8 Aug 2025, 09:33 | 6.99 | 6.99 |
| 10 Jul 2025, 10:11 | 7.01 | 7.01 |
| 2 Jun 2025, 12:04 | 7.35 | 7.35 |
| 12 May 2025, 11:29 | 7.24 | 7.24 |
| 8 Apr 2025, 14:10 | 7.37 | 7.37 |
| 13 Mar 2025, 14:09 | 7.34 | 7.34 |
| 14 Feb 2025, 12:30 | 7.12 | 7.12 |
| 9 Jan 2025, 11:50 | 6.9 | 6.9 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.054 mg/l
Sampled 2 Jul 2026, 3 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jul 2026, 11:32 | 0.054 | 0.054 mg/l |
| 3 Jun 2026, 15:16 | 0.0034 | 0.0034 mg/l |
| 12 May 2026, 08:23 | 0.032 | 0.032 mg/l |
| 17 Apr 2026, 16:57 | <0.002 | below 0.002 mg/l (not detected above this) |
| 4 Mar 2026, 10:11 | 0.0064 | 0.0064 mg/l |
| 6 Feb 2026, 14:03 | 0.018 | 0.018 mg/l |
| 16 Jan 2026, 10:51 | 0.0086 | 0.0086 mg/l |
| 9 Dec 2025, 12:51 | 0.0067 | 0.0067 mg/l |
| 14 Nov 2025, 11:03 | 0.005 | 0.005 mg/l |
| 16 Oct 2025, 13:17 | <0.002 | below 0.002 mg/l (not detected above this) |
| 5 Sep 2025, 10:06 | 0.01 | 0.01 mg/l |
| 8 Aug 2025, 09:33 | 0.03 | 0.03 mg/l |
| 10 Jul 2025, 10:11 | 0.061 | 0.061 mg/l |
| 2 Jun 2025, 12:04 | 0.051 | 0.051 mg/l |
| 12 May 2025, 11:29 | 0.02 | 0.02 mg/l |
| 8 Apr 2025, 14:10 | 0.0079 | 0.0079 mg/l |
| 13 Mar 2025, 14:09 | 0.0093 | 0.0093 mg/l |
| 14 Feb 2025, 12:30 | 0.021 | 0.021 mg/l |
| 9 Jan 2025, 11:50 | 0.027 | 0.027 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.0867 mg/l
Sampled 2 Jul 2026, 3 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jul 2026, 11:32 | 0.0867 | 0.0867 mg/l |
| 3 Jun 2026, 15:16 | 0.228 | 0.228 mg/l |
| 12 May 2026, 08:23 | 0.0835 | 0.0835 mg/l |
| 17 Apr 2026, 16:57 | 0.022 | 0.022 mg/l |
| 4 Mar 2026, 10:11 | 0.109 | 0.109 mg/l |
| 6 Feb 2026, 14:03 | 0.129 | 0.129 mg/l |
| 16 Jan 2026, 10:51 | 0.229 | 0.229 mg/l |
| 9 Dec 2025, 12:51 | 0.219 | 0.219 mg/l |
| 14 Nov 2025, 11:03 | 0.189 | 0.189 mg/l |
| 16 Oct 2025, 13:17 | 0.033 | 0.033 mg/l |
| 5 Sep 2025, 10:06 | 0.359 | 0.359 mg/l |
| 8 Aug 2025, 09:33 | 0.0871 | 0.0871 mg/l |
| 10 Jul 2025, 10:11 | 0.105 | 0.105 mg/l |
| 2 Jun 2025, 12:04 | 0.0894 | 0.0894 mg/l |
| 12 May 2025, 11:29 | 0.0979 | 0.0979 mg/l |
| 8 Apr 2025, 14:10 | 0.0617 | 0.0617 mg/l |
| 13 Mar 2025, 14:09 | 0.139 | 0.139 mg/l |
| 14 Feb 2025, 12:30 | 0.168 | 0.168 mg/l |
| 9 Jan 2025, 11:50 | 0.189 | 0.189 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.0043 mg/l
Sampled 2 Jul 2026, 3 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jul 2026, 11:32 | 0.0043 | 0.0043 mg/l |
| 3 Jun 2026, 15:16 | 0.0035 | 0.0035 mg/l |
| 12 May 2026, 08:23 | 0.0046 | 0.0046 mg/l |
| 17 Apr 2026, 16:57 | 0.0015 | 0.0015 mg/l |
| 4 Mar 2026, 10:11 | 0.002 | 0.002 mg/l |
| 6 Feb 2026, 14:03 | 0.0018 | 0.0018 mg/l |
| 16 Jan 2026, 10:51 | 0.0026 | 0.0026 mg/l |
| 9 Dec 2025, 12:51 | 0.0033 | 0.0033 mg/l |
| 14 Nov 2025, 11:03 | 0.002 | 0.002 mg/l |
| 16 Oct 2025, 13:17 | <0.001 | below 0.001 mg/l (not detected above this) |
| 5 Sep 2025, 10:06 | 0.0016 | 0.0016 mg/l |
| 8 Aug 2025, 09:33 | 0.0049 | 0.0049 mg/l |
| 10 Jul 2025, 10:11 | 0.0063 | 0.0063 mg/l |
| 2 Jun 2025, 12:04 | 0.0037 | 0.0037 mg/l |
| 12 May 2025, 11:29 | 0.0064 | 0.0064 mg/l |
| 8 Apr 2025, 14:10 | 0.0044 | 0.0044 mg/l |
| 13 Mar 2025, 14:09 | 0.0033 | 0.0033 mg/l |
| 14 Feb 2025, 12:30 | 0.003 | 0.003 mg/l |
| 9 Jan 2025, 11:50 | 0.004 | 0.004 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
198 µS/cm
Sampled 2 Jul 2026, 3 months ago · 19 results banked
Every result (19)
| Sampled | Result as published | Reads as |
|---|---|---|
| 2 Jul 2026, 11:32 | 198 | 198 µS/cm |
| 3 Jun 2026, 15:16 | 170 | 170 µS/cm |
| 12 May 2026, 08:23 | 188 | 188 µS/cm |
| 17 Apr 2026, 16:57 | 152 | 152 µS/cm |
| 4 Mar 2026, 10:11 | 113 | 113 µS/cm |
| 6 Feb 2026, 14:03 | 80 | 80 µS/cm |
| 16 Jan 2026, 10:51 | 108 | 108 µS/cm |
| 9 Dec 2025, 12:51 | 101 | 101 µS/cm |
| 14 Nov 2025, 11:03 | 165 | 165 µS/cm |
| 16 Oct 2025, 13:17 | 235 | 235 µS/cm |
| 5 Sep 2025, 10:06 | 315 | 315 µS/cm |
| 8 Aug 2025, 09:33 | 210 | 210 µS/cm |
| 10 Jul 2025, 10:11 | 210 | 210 µS/cm |
| 2 Jun 2025, 12:04 | 202 | 202 µS/cm |
| 12 May 2025, 11:29 | 194 | 194 µS/cm |
| 8 Apr 2025, 14:10 | 176 | 176 µS/cm |
| 13 Mar 2025, 14:09 | 145 | 145 µS/cm |
| 14 Feb 2025, 12:30 | 137 | 137 µS/cm |
| 9 Jan 2025, 11:50 | 115 | 115 µS/cm |
Everything measured here
20 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 20 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 19 | Jan 2025 – Jul 2026 | 58.7% 2 Jul 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 19 | Jan 2025 – Jul 2026 | 5.66 mg/l 2 Jul 2026 |
| Temperature of Water 0076 | River water | 19 | Jan 2025 – Jul 2026 | 17 °C 2 Jul 2026 |
| pH 0061 | River water | 19 | Jan 2025 – Jul 2026 | 7.07 2 Jul 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 19 | Jan 2025 – Jul 2026 | 0.054 mg/l 2 Jul 2026 |
| Nitrate as N 0117 | River water | 19 | Jan 2025 – Jul 2026 | 0.0867 mg/l 2 Jul 2026 |
| Orthophosphate, reactive as P 0180 | River water | 19 | Jan 2025 – Jul 2026 | 0.0043 mg/l 2 Jul 2026 |
| Conductivity at 25 C 0077 | River water | 19 | Jan 2025 – Jul 2026 | 198 µS/cm 2 Jul 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 19 | Jan 2025 – Jul 2026 | 60 mg/l 2 Jul 2026 |
| Ammonia un-ionised as N 0119 | River water | 19 | Jan 2025 – Jul 2026 | 0.0002 mg/l 2 Jul 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 19 | Jan 2025 – Jul 2026 | 13 mg/l 2 Jul 2026 |
| Chloride 0172 | River water | 19 | Jan 2025 – Jul 2026 | 22 mg/l 2 Jul 2026 |
| Flow Type 2896 | River water | 20 | Jan 2025 – Sep 2026 | Isolated Pools 1 Sep 2026 |
| LCMS Screen : Semi Quantitative 7299 | River water | 1 | Jul 2026 – Jul 2026 | 1 text result 2 Jul 2026 |
| Nitrite as N 0118 | River water | 19 | Jan 2025 – Jul 2026 | 0.0043 mg/l 2 Jul 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 19 | Jan 2025 – Jul 2026 | 0.091 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 |
| Phosphorus, Total as P 0348 | River water | 19 | Jan 2025 – Jul 2026 | 0.018 mg/l 2 Jul 2026 |
| Silica, reactive as SiO2 0182 | River water | 19 | Jan 2025 – Jul 2026 | 8.6 mg/l 2 Jul 2026 |
| Solids, Suspended at 105 C 0135 | River water | 8 | Dec 2025 – Jul 2026 | 3.9 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.