Newmill Channel upstream of Tenterden sewage treatment works
EA name: NEWMILL CHANNEL U/S TENTERDEN STW
Environment Agency sampling point SO-E0007265 · 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
- 26 May 2026, 09:464 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
- 24 since 19 Jun 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 586471, 132706As published, to the nearest 1 m. Open in a map
- River, by its own name
- Newmill Channel
- River, by the map
- Newmill ChannelPlaced on the river its name gives, 4 m from the line.
- Next gauge downstream
- None tracedIts water reaches the sea without passing a gauge.
- Why it was sampled
- Monitoring (national agency policy) (24 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
74.3%
Sampled 26 May 2026, 4 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 26 May 2026, 09:46 | 74.3 | 74.3% |
| 7 Apr 2026, 09:23 | 95.9 | 95.9% |
| 20 Mar 2026, 11:47 | 103.9 | 103.9% |
| 13 Feb 2026, 13:14 | 95.9 | 95.9% |
| 14 Jan 2026, 11:04 | 96.8 | 96.8% |
| 1 Dec 2025, 13:51 | 91.7 | 91.7% |
| 7 Nov 2025, 12:08 | 81.8 | 81.8% |
| 22 Oct 2025, 09:14 | 84.1 | 84.1% |
| 3 Sep 2025, 12:43 | 82.8 | 82.8% |
| 13 Aug 2025, 13:35 | 78.1 | 78.1% |
| 4 Jul 2025, 08:48 | 71.5 | 71.5% |
| 13 Jun 2025, 12:17 | 83.3 | 83.3% |
| 29 May 2025, 09:43 | 76.7 | 76.7% |
| 11 Apr 2025, 13:17 | 112.9 | 112.9% |
| 10 Mar 2025, 10:51 | 101.8 | 101.8% |
| 4 Feb 2025, 11:39 | 98.8 | 98.8% |
| 21 Jan 2025, 11:06 | 97 | 97% |
| 2 Dec 2024, 10:36 | 94.9 | 94.9% |
| 18 Nov 2024, 12:38 | 89.4 | 89.4% |
| 21 Oct 2024, 13:35 | 91.8 | 91.8% |
| 18 Sep 2024, 09:53 | 87.3 | 87.3% |
| 22 Aug 2024, 11:30 | 73.1 | 73.1% |
| 16 Jul 2024, 10:40 | 91 | 91% |
| 19 Jun 2024, 12:00 | 88.7 | 88.7% |
Dissolved oxygen
as O2 · code 9924 · mg/l
7.02 mg/l
Sampled 26 May 2026, 4 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 26 May 2026, 09:46 | 7.02 | 7.02 mg/l |
| 7 Apr 2026, 09:23 | 11.4 | 11.4 mg/l |
| 20 Mar 2026, 11:47 | 11.9 | 11.9 mg/l |
| 13 Feb 2026, 13:14 | 11.2 | 11.2 mg/l |
| 14 Jan 2026, 11:04 | 12.2 | 12.2 mg/l |
| 1 Dec 2025, 13:51 | 10.9 | 10.9 mg/l |
| 7 Nov 2025, 12:08 | 8.64 | 8.64 mg/l |
| 22 Oct 2025, 09:14 | 9.32 | 9.32 mg/l |
| 3 Sep 2025, 12:43 | 8.1 | 8.1 mg/l |
| 13 Aug 2025, 13:35 | 7.3 | 7.3 mg/l |
| 4 Jul 2025, 08:48 | 7.22 | 7.22 mg/l |
| 13 Jun 2025, 12:17 | 7.95 | 7.95 mg/l |
| 29 May 2025, 09:43 | 7.85 | 7.85 mg/l |
| 11 Apr 2025, 13:17 | 12.3 | 12.3 mg/l |
| 10 Mar 2025, 10:51 | 11.9 | 11.9 mg/l |
| 4 Feb 2025, 11:39 | 12.4 | 12.4 mg/l |
| 21 Jan 2025, 11:06 | 12.8 | 12.8 mg/l |
| 2 Dec 2024, 10:36 | 10.8 | 10.8 mg/l |
| 18 Nov 2024, 12:38 | 10.4 | 10.4 mg/l |
| 21 Oct 2024, 13:35 | 9.69 | 9.69 mg/l |
| 18 Sep 2024, 09:53 | 8.82 | 8.82 mg/l |
| 22 Aug 2024, 11:30 | 7.27 | 7.27 mg/l |
| 16 Jul 2024, 10:40 | 8.98 | 8.98 mg/l |
| 19 Jun 2024, 12:00 | 9.12 | 9.12 mg/l |
Water temperature
code 0076 · °C
18 °C
Sampled 26 May 2026, 4 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 26 May 2026, 09:46 | 18 | 18 °C |
| 7 Apr 2026, 09:23 | 7.9 | 7.9 °C |
| 20 Mar 2026, 11:47 | 9.3 | 9.3 °C |
| 13 Feb 2026, 13:14 | 8.6 | 8.6 °C |
| 14 Jan 2026, 11:04 | 5.5 | 5.5 °C |
| 1 Dec 2025, 13:51 | 7.8 | 7.8 °C |
| 7 Nov 2025, 12:08 | 12.8 | 12.8 °C |
| 22 Oct 2025, 09:14 | 10.7 | 10.7 °C |
| 3 Sep 2025, 12:43 | 16.3 | 16.3 °C |
| 13 Aug 2025, 13:35 | 18.5 | 18.5 °C |
| 4 Jul 2025, 08:48 | 14.8 | 14.8 °C |
| 13 Jun 2025, 12:17 | 17.5 | 17.5 °C |
| 29 May 2025, 09:43 | 14.2 | 14.2 °C |
| 11 Apr 2025, 13:17 | 11.3 | 11.3 °C |
| 10 Mar 2025, 10:51 | 8.3 | 8.3 °C |
| 4 Feb 2025, 11:39 | 5.7 | 5.7 °C |
| 21 Jan 2025, 11:06 | 3.6 | 3.6 °C |
| 2 Dec 2024, 10:36 | 9.4 | 9.4 °C |
| 18 Nov 2024, 12:38 | 8.6 | 8.6 °C |
| 21 Oct 2024, 13:35 | 12.8 | 12.8 °C |
| 18 Sep 2024, 09:53 | 14.8 | 14.8 °C |
| 22 Aug 2024, 11:30 | 15.5 | 15.5 °C |
| 16 Jul 2024, 10:40 | 15.9 | 15.9 °C |
| 19 Jun 2024, 12:00 | 14 | 14 °C |
pH
code 0061
7.59
Sampled 26 May 2026, 4 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 26 May 2026, 09:46 | 7.59 | 7.59 |
| 7 Apr 2026, 09:23 | 7.94 | 7.94 |
| 20 Mar 2026, 11:47 | 8.02 | 8.02 |
| 13 Feb 2026, 13:14 | 7.74 | 7.74 |
| 14 Jan 2026, 11:04 | 7.7 | 7.7 |
| 1 Dec 2025, 13:51 | 7.66 | 7.66 |
| 7 Nov 2025, 12:08 | 7.58 | 7.58 |
| 22 Oct 2025, 09:14 | 7.49 | 7.49 |
| 3 Sep 2025, 12:43 | 7.67 | 7.67 |
| 13 Aug 2025, 13:35 | 7.84 | 7.84 |
| 4 Jul 2025, 08:48 | 7.67 | 7.67 |
| 13 Jun 2025, 12:17 | 7.7 | 7.7 |
| 29 May 2025, 09:43 | 7.73 | 7.73 |
| 11 Apr 2025, 13:17 | 10.02 | 10.02 |
| 10 Mar 2025, 10:51 | 7.91 | 7.91 |
| 4 Feb 2025, 11:39 | 7.73 | 7.73 |
| 21 Jan 2025, 11:06 | 7.83 | 7.83 |
| 2 Dec 2024, 10:36 | 7.68 | 7.68 |
| 18 Nov 2024, 12:38 | 7.59 | 7.59 |
| 21 Oct 2024, 13:35 | 7.49 | 7.49 |
| 18 Sep 2024, 09:53 | 7.85 | 7.85 |
| 22 Aug 2024, 11:30 | 7.55 | 7.55 |
| 16 Jul 2024, 10:40 | 7.88 | 7.88 |
| 19 Jun 2024, 12:00 | 7.76 | 7.76 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.17 mg/l
Sampled 26 May 2026, 4 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 26 May 2026, 09:46 | 0.17 | 0.17 mg/l |
| 7 Apr 2026, 09:23 | 0.041 | 0.041 mg/l |
| 20 Mar 2026, 11:47 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Feb 2026, 13:14 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Jan 2026, 11:04 | 0.039 | 0.039 mg/l |
| 1 Dec 2025, 13:51 | <0.03 | below 0.03 mg/l (not detected above this) |
| 7 Nov 2025, 12:08 | <0.03 | below 0.03 mg/l (not detected above this) |
| 22 Oct 2025, 09:14 | 0.64 | 0.64 mg/l |
| 3 Sep 2025, 12:43 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Aug 2025, 13:35 | 0.056 | 0.056 mg/l |
| 4 Jul 2025, 08:48 | 0.082 | 0.082 mg/l |
| 13 Jun 2025, 12:17 | 0.13 | 0.13 mg/l |
| 29 May 2025, 09:43 | 0.14 | 0.14 mg/l |
| 11 Apr 2025, 13:17 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Mar 2025, 10:51 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Feb 2025, 11:39 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Jan 2025, 11:06 | 0.038 | 0.038 mg/l |
| 2 Dec 2024, 10:36 | 0.046 | 0.046 mg/l |
| 18 Nov 2024, 12:38 | <0.03 | below 0.03 mg/l (not detected above this) |
| 21 Oct 2024, 13:35 | 0.034 | 0.034 mg/l |
| 18 Sep 2024, 09:53 | 0.039 | 0.039 mg/l |
| 22 Aug 2024, 11:30 | 0.033 | 0.033 mg/l |
| 16 Jul 2024, 10:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Jun 2024, 12:00 | 0.044 | 0.044 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
0.868 mg/l
Sampled 26 May 2026, 4 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 26 May 2026, 09:46 | 0.868 | 0.868 mg/l |
| 7 Apr 2026, 09:23 | 1.59 | 1.59 mg/l |
| 20 Mar 2026, 11:47 | 1.49 | 1.49 mg/l |
| 13 Feb 2026, 13:14 | 1.69 | 1.69 mg/l |
| 14 Jan 2026, 11:04 | 2.69 | 2.69 mg/l |
| 1 Dec 2025, 13:51 | 4.99 | 4.99 mg/l |
| 7 Nov 2025, 12:08 | 3.38 | 3.38 mg/l |
| 22 Oct 2025, 09:14 | 6.42 | 6.42 mg/l |
| 3 Sep 2025, 12:43 | 1.09 | 1.09 mg/l |
| 13 Aug 2025, 13:35 | 0.34 | 0.34 mg/l |
| 4 Jul 2025, 08:48 | 0.423 | 0.423 mg/l |
| 13 Jun 2025, 12:17 | 1.34 | 1.34 mg/l |
| 29 May 2025, 09:43 | 1.56 | 1.56 mg/l |
| 11 Apr 2025, 13:17 | 1.69 | 1.69 mg/l |
| 10 Mar 2025, 10:51 | 1.99 | 1.99 mg/l |
| 4 Feb 2025, 11:39 | 2.19 | 2.19 mg/l |
| 21 Jan 2025, 11:06 | 2.19 | 2.19 mg/l |
| 2 Dec 2024, 10:36 | 2.08 | 2.08 mg/l |
| 18 Nov 2024, 12:38 | 2.09 | 2.09 mg/l |
| 21 Oct 2024, 13:35 | 2.88 | 2.88 mg/l |
| 18 Sep 2024, 09:53 | 0.563 | 0.563 mg/l |
| 22 Aug 2024, 11:30 | 0.276 | 0.276 mg/l |
| 16 Jul 2024, 10:40 | 1.79 | 1.79 mg/l |
| 19 Jun 2024, 12:00 | 1.78 | 1.78 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.078 mg/l
Sampled 26 May 2026, 4 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 26 May 2026, 09:46 | 0.078 | 0.078 mg/l |
| 7 Apr 2026, 09:23 | 0.043 | 0.043 mg/l |
| 20 Mar 2026, 11:47 | 0.049 | 0.049 mg/l |
| 13 Feb 2026, 13:14 | 0.083 | 0.083 mg/l |
| 14 Jan 2026, 11:04 | 0.089 | 0.089 mg/l |
| 1 Dec 2025, 13:51 | 0.046 | 0.046 mg/l |
| 7 Nov 2025, 12:08 | 0.046 | 0.046 mg/l |
| 22 Oct 2025, 09:14 | 0.053 | 0.053 mg/l |
| 3 Sep 2025, 12:43 | 0.11 | 0.11 mg/l |
| 13 Aug 2025, 13:35 | 0.072 | 0.072 mg/l |
| 4 Jul 2025, 08:48 | 0.067 | 0.067 mg/l |
| 13 Jun 2025, 12:17 | 0.059 | 0.059 mg/l |
| 29 May 2025, 09:43 | 0.049 | 0.049 mg/l |
| 11 Apr 2025, 13:17 | <0.01 | below 0.01 mg/l (not detected above this) |
| 10 Mar 2025, 10:51 | 0.021 | 0.021 mg/l |
| 4 Feb 2025, 11:39 | 0.04 | 0.04 mg/l |
| 21 Jan 2025, 11:06 | 0.036 | 0.036 mg/l |
| 2 Dec 2024, 10:36 | 0.066 | 0.066 mg/l |
| 18 Nov 2024, 12:38 | 0.043 | 0.043 mg/l |
| 21 Oct 2024, 13:35 | 0.071 | 0.071 mg/l |
| 18 Sep 2024, 09:53 | 0.049 | 0.049 mg/l |
| 22 Aug 2024, 11:30 | 0.04 | 0.04 mg/l |
| 16 Jul 2024, 10:40 | 0.062 | 0.062 mg/l |
| 19 Jun 2024, 12:00 | 0.043 | 0.043 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
524 µS/cm
Sampled 26 May 2026, 4 months ago · 24 results banked
Every result (24)
| Sampled | Result as published | Reads as |
|---|---|---|
| 26 May 2026, 09:46 | 524 | 524 µS/cm |
| 7 Apr 2026, 09:23 | 489 | 489 µS/cm |
| 20 Mar 2026, 11:47 | 447 | 447 µS/cm |
| 13 Feb 2026, 13:14 | 304 | 304 µS/cm |
| 14 Jan 2026, 11:04 | 315 | 315 µS/cm |
| 1 Dec 2025, 13:51 | 504 | 504 µS/cm |
| 7 Nov 2025, 12:08 | 535 | 535 µS/cm |
| 22 Oct 2025, 09:14 | 513 | 513 µS/cm |
| 3 Sep 2025, 12:43 | 436 | 436 µS/cm |
| 13 Aug 2025, 13:35 | 534 | 534 µS/cm |
| 4 Jul 2025, 08:48 | 568 | 568 µS/cm |
| 13 Jun 2025, 12:17 | 518 | 518 µS/cm |
| 29 May 2025, 09:43 | 508 | 508 µS/cm |
| 11 Apr 2025, 13:17 | 485 | 485 µS/cm |
| 10 Mar 2025, 10:51 | 426 | 426 µS/cm |
| 4 Feb 2025, 11:39 | 377 | 377 µS/cm |
| 21 Jan 2025, 11:06 | 409 | 409 µS/cm |
| 2 Dec 2024, 10:36 | 364 | 364 µS/cm |
| 18 Nov 2024, 12:38 | 535 | 535 µS/cm |
| 21 Oct 2024, 13:35 | 341 | 341 µS/cm |
| 18 Sep 2024, 09:53 | 504 | 504 µS/cm |
| 22 Aug 2024, 11:30 | 487 | 487 µS/cm |
| 16 Jul 2024, 10:40 | 499 | 499 µS/cm |
| 19 Jun 2024, 12:00 | 484 | 484 µS/cm |
Everything measured here
13 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 13 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 24 | Jun 2024 – May 2026 | 74.3% 26 May 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 24 | Jun 2024 – May 2026 | 7.02 mg/l 26 May 2026 |
| Temperature of Water 0076 | River water | 24 | Jun 2024 – May 2026 | 18 °C 26 May 2026 |
| pH 0061 | River water | 24 | Jun 2024 – May 2026 | 7.59 26 May 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 24 | Jun 2024 – May 2026 | 0.17 mg/l 26 May 2026 |
| Nitrate as N 0117 | River water | 24 | Jun 2024 – May 2026 | 0.868 mg/l 26 May 2026 |
| Orthophosphate, reactive as P 0180 | River water | 24 | Jun 2024 – May 2026 | 0.078 mg/l 26 May 2026 |
| Conductivity at 25 C 0077 | River water | 24 | Jun 2024 – May 2026 | 524 µS/cm 26 May 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 24 | Jun 2024 – May 2026 | 160 mg/l 26 May 2026 |
| Ammonia un-ionised as N 0119 | River water | 24 | Jun 2024 – May 2026 | 0.0022 mg/l 26 May 2026 |
| BOD : 5 Day ATU 0085 | River water | 23 | Jun 2024 – May 2026 | 1 mg/l 26 May 2026 |
| Nitrite as N 0118 | River water | 24 | Jun 2024 – May 2026 | 0.052 mg/l 26 May 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 24 | Jun 2024 – May 2026 | 0.92 mg/l 26 May 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.