Pipp Brook at Pixham Lane, Dorking
EA name: PIPP BROOK AT PIXHAM LANE, DORKING
Environment Agency sampling point TH-PMLR0232 · 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
- 9 Mar 2026, 12:097 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone). Not sampled since, as far as the archive shows: the Environment Agency was asked up to 30 Sep 2026 and had nothing newer.
- Samples banked
- 12 since 16 Apr 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 517340, 150640As published, to the nearest 10 m. Open in a map
- River, by its own name
- Pipp Brook
- River, by the map
- Pipp BrookPlaced on the river its name gives, 27 m from the line.
- Next gauge downstream
- Leatherhead On the River Mole · 9.2 km along the river
- Why it was sampled
- Monitoring (national agency policy) (12 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
101.7%
Sampled 9 Mar 2026, 7 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Mar 2026, 12:09 | 101.7 | 101.7% |
| 11 Feb 2026, 10:12 | 99.2 | 99.2% |
| 8 Jan 2026, 12:45 | 100.2 | 100.2% |
| 1 Dec 2025, 12:42 | 100.5 | 100.5% |
| 4 Nov 2025, 10:29 | 97.6 | 97.6% |
| 6 Oct 2025, 12:19 | 93.7 | 93.7% |
| 2 Sep 2025, 14:26 | 92.4 | 92.4% |
| 19 Aug 2025, 10:52 | 93.5 | 93.5% |
| 16 Jul 2025, 10:31 | 101.4 | 101.4% |
| 12 Jun 2025, 11:10 | 96.2 | 96.2% |
| 9 May 2025, 11:26 | 97.5 | 97.5% |
| 16 Apr 2025, 12:14 | 102.5 | 102.5% |
Dissolved oxygen
as O2 · code 9924 · mg/l
11.6 mg/l
Sampled 9 Mar 2026, 7 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Mar 2026, 12:09 | 11.6 | 11.6 mg/l |
| 11 Feb 2026, 10:12 | 11.4 | 11.4 mg/l |
| 8 Jan 2026, 12:45 | 13.4 | 13.4 mg/l |
| 1 Dec 2025, 12:42 | 11.9 | 11.9 mg/l |
| 4 Nov 2025, 10:29 | 10.5 | 10.5 mg/l |
| 6 Oct 2025, 12:19 | 9.89 | 9.89 mg/l |
| 2 Sep 2025, 14:26 | 8.98 | 8.98 mg/l |
| 19 Aug 2025, 10:52 | 8.74 | 8.74 mg/l |
| 16 Jul 2025, 10:31 | 9.34 | 9.34 mg/l |
| 12 Jun 2025, 11:10 | 9.18 | 9.18 mg/l |
| 9 May 2025, 11:26 | 10.1 | 10.1 mg/l |
| 16 Apr 2025, 12:14 | 11 | 11 mg/l |
Water temperature
code 0076 · °C
9.5 °C
Sampled 9 Mar 2026, 7 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Mar 2026, 12:09 | 9.5 | 9.5 °C |
| 11 Feb 2026, 10:12 | 9 | 9 °C |
| 8 Jan 2026, 12:45 | 3.1 | 3.1 °C |
| 1 Dec 2025, 12:42 | 8 | 8 °C |
| 4 Nov 2025, 10:29 | 11.9 | 11.9 °C |
| 6 Oct 2025, 12:19 | 12.8 | 12.8 °C |
| 2 Sep 2025, 14:26 | 16.6 | 16.6 °C |
| 19 Aug 2025, 10:52 | 18.5 | 18.5 °C |
| 16 Jul 2025, 10:31 | 19.2 | 19.2 °C |
| 12 Jun 2025, 11:10 | 17.5 | 17.5 °C |
| 9 May 2025, 11:26 | 13.7 | 13.7 °C |
| 16 Apr 2025, 12:14 | 12.1 | 12.1 °C |
pH
code 0061
8.02
Sampled 9 Mar 2026, 7 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Mar 2026, 12:09 | 8.02 | 8.02 |
| 11 Feb 2026, 10:12 | 7.94 | 7.94 |
| 8 Jan 2026, 12:45 | 7.92 | 7.92 |
| 1 Dec 2025, 12:42 | 7.73 | 7.73 |
| 4 Nov 2025, 10:29 | 7.73 | 7.73 |
| 6 Oct 2025, 12:19 | 7.87 | 7.87 |
| 2 Sep 2025, 14:26 | 7.79 | 7.79 |
| 19 Aug 2025, 10:52 | 7.9 | 7.9 |
| 16 Jul 2025, 10:31 | 7.96 | 7.96 |
| 12 Jun 2025, 11:10 | 7.9 | 7.9 |
| 9 May 2025, 11:26 | 7.99 | 7.99 |
| 16 Apr 2025, 12:14 | 8.17 | 8.17 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.061 mg/l
Sampled 9 Mar 2026, 7 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Mar 2026, 12:09 | 0.061 | 0.061 mg/l |
| 11 Feb 2026, 10:12 | 0.03 | 0.03 mg/l |
| 8 Jan 2026, 12:45 | 0.059 | 0.059 mg/l |
| 1 Dec 2025, 12:42 | 0.041 | 0.041 mg/l |
| 4 Nov 2025, 10:29 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Oct 2025, 12:19 | 0.073 | 0.073 mg/l |
| 2 Sep 2025, 14:26 | 0.081 | 0.081 mg/l |
| 19 Aug 2025, 10:52 | 0.049 | 0.049 mg/l |
| 16 Jul 2025, 10:31 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Jun 2025, 11:10 | 0.067 | 0.067 mg/l |
| 9 May 2025, 11:26 | 0.14 | 0.14 mg/l |
| 16 Apr 2025, 12:14 | 0.081 | 0.081 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
2.98 mg/l
Sampled 9 Mar 2026, 7 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Mar 2026, 12:09 | 2.98 | 2.98 mg/l |
| 11 Feb 2026, 10:12 | 2.59 | 2.59 mg/l |
| 8 Jan 2026, 12:45 | 3.39 | 3.39 mg/l |
| 1 Dec 2025, 12:42 | 3.08 | 3.08 mg/l |
| 4 Nov 2025, 10:29 | 3.68 | 3.68 mg/l |
| 6 Oct 2025, 12:19 | 2.57 | 2.57 mg/l |
| 2 Sep 2025, 14:26 | 1.76 | 1.76 mg/l |
| 19 Aug 2025, 10:52 | 1.47 | 1.47 mg/l |
| 16 Jul 2025, 10:31 | 0.447 | 0.447 mg/l |
| 12 Jun 2025, 11:10 | 1.55 | 1.55 mg/l |
| 9 May 2025, 11:26 | 2.44 | 2.44 mg/l |
| 16 Apr 2025, 12:14 | 2.48 | 2.48 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.12 mg/l
Sampled 9 Mar 2026, 7 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Mar 2026, 12:09 | 0.12 | 0.12 mg/l |
| 11 Feb 2026, 10:12 | 0.11 | 0.11 mg/l |
| 8 Jan 2026, 12:45 | 0.14 | 0.14 mg/l |
| 1 Dec 2025, 12:42 | 0.12 | 0.12 mg/l |
| 4 Nov 2025, 10:29 | 0.14 | 0.14 mg/l |
| 6 Oct 2025, 12:19 | 0.12 | 0.12 mg/l |
| 2 Sep 2025, 14:26 | 0.13 | 0.13 mg/l |
| 19 Aug 2025, 10:52 | 0.12 | 0.12 mg/l |
| 16 Jul 2025, 10:31 | 0.12 | 0.12 mg/l |
| 12 Jun 2025, 11:10 | 0.13 | 0.13 mg/l |
| 9 May 2025, 11:26 | 0.11 | 0.11 mg/l |
| 16 Apr 2025, 12:14 | 0.071 | 0.071 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
303 µS/cm
Sampled 9 Mar 2026, 7 months ago · 12 results banked
Every result (12)
| Sampled | Result as published | Reads as |
|---|---|---|
| 9 Mar 2026, 12:09 | 303 | 303 µS/cm |
| 11 Feb 2026, 10:12 | 285 | 285 µS/cm |
| 8 Jan 2026, 12:45 | 343 | 343 µS/cm |
| 1 Dec 2025, 12:42 | 292 | 292 µS/cm |
| 4 Nov 2025, 10:29 | 305 | 305 µS/cm |
| 6 Oct 2025, 12:19 | 275 | 275 µS/cm |
| 2 Sep 2025, 14:26 | 259 | 259 µS/cm |
| 19 Aug 2025, 10:52 | 301 | 301 µS/cm |
| 16 Jul 2025, 10:31 | 292 | 292 µS/cm |
| 12 Jun 2025, 11:10 | 275 | 275 µS/cm |
| 9 May 2025, 11:26 | 295 | 295 µS/cm |
| 16 Apr 2025, 12:14 | 301 | 301 µS/cm |
Everything measured here
12 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 12 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 12 | Apr 2025 – Mar 2026 | 101.7% 9 Mar 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 12 | Apr 2025 – Mar 2026 | 11.6 mg/l 9 Mar 2026 |
| Temperature of Water 0076 | River water | 12 | Apr 2025 – Mar 2026 | 9.5 °C 9 Mar 2026 |
| pH 0061 | River water | 12 | Apr 2025 – Mar 2026 | 8.02 9 Mar 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 12 | Apr 2025 – Mar 2026 | 0.061 mg/l 9 Mar 2026 |
| Nitrate as N 0117 | River water | 12 | Apr 2025 – Mar 2026 | 2.98 mg/l 9 Mar 2026 |
| Orthophosphate, reactive as P 0180 | River water | 12 | Apr 2025 – Mar 2026 | 0.12 mg/l 9 Mar 2026 |
| Conductivity at 25 C 0077 | River water | 12 | Apr 2025 – Mar 2026 | 303 µS/cm 9 Mar 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 12 | Apr 2025 – Mar 2026 | 94 mg/l 9 Mar 2026 |
| Ammonia un-ionised as N 0119 | River water | 12 | Apr 2025 – Mar 2026 | 0.00107 mg/l 9 Mar 2026 |
| Nitrite as N 0118 | River water | 12 | Apr 2025 – Mar 2026 | 0.018 mg/l 9 Mar 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 12 | Apr 2025 – Mar 2026 | 3 mg/l 9 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.