Ridham Dock Sittingbourne
EA name: RIDHAM DOCK SITTINGBOURNE (also listed as “RIDHAM DOCK SITTINGBOURNE INVESTIGATION POINT”)
Environment Agency sampling point SO-E0007210 · 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
- 19 Aug 2026, 08:4743 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 23 since 23 Oct 2023 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Environmental monitoring statutory (EU directives)
- Where
- National Grid 592142, 167840As published, to the nearest 1 m. Open in a map
- River, by its own name
- Its name does not give one
- River, by the map
- Not placedTwo watercourses within reach (35 m and 46 m) and no name to choose by. The river map cannot say which watercourse this is.
- Next gauge downstream
- Not known
- Why it was sampled
- Environmental monitoring statutory (EU directives) (17 samples)
Planned investigation (national agency policy) (6 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
74%
Sampled 19 Aug 2026, 43 days ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Aug 2026, 08:47 | 74 | 74% |
| 20 Jul 2026, 08:41 | 82.5 | 82.5% |
| 8 Jun 2026, 09:43 | 73.5 | 73.5% |
| 12 May 2026, 12:50 | 111.1 | 111.1% |
| 7 Apr 2026, 07:28 | 79 | 79% |
| 11 Mar 2026, 08:22 | 75.8 | 75.8% |
| 12 Feb 2026, 11:29 | 64.2 | 64.2% |
| 13 Jan 2026, 11:05 | 70.7 | 70.7% |
| 11 Dec 2025, 08:25 | 54.8 | 54.8% |
| 4 Nov 2025, 14:05 | 45.3 | 45.3% |
| 3 Oct 2025, 13:36 | 62.3 | 62.3% |
| 2 Sep 2025, 11:13 | 38.2 | 38.2% |
| 5 Aug 2025, 13:16 | 63.6 | 63.6% |
| 16 Jul 2025, 08:47 | 77.4 | 77.4% |
| 19 Jun 2025, 10:31 | 66.4 | 66.4% |
| 22 May 2025, 12:07 | 75.2 | 75.2% |
| 22 Apr 2025, 11:02 | 60.6 | 60.6% |
| 19 Mar 2024, 10:58 | 61.6 | 61.6% |
| 5 Feb 2024, 10:27 | 51.2 | 51.2% |
| 18 Jan 2024, 08:17 | 56.9 | 56.9% |
| 7 Dec 2023, 10:07 | 70.6 | 70.6% |
| 6 Nov 2023, 08:40 | 55.2 | 55.2% |
| 23 Oct 2023, 10:30 | 42.5 | 42.5% |
Water temperature
code 0076 · °C
20.5 °C
Sampled 19 Aug 2026, 43 days ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Aug 2026, 08:47 | 20.5 | 20.5 °C |
| 20 Jul 2026, 08:41 | 19.3 | 19.3 °C |
| 8 Jun 2026, 09:43 | 16.6 | 16.6 °C |
| 12 May 2026, 12:50 | 14.1 | 14.1 °C |
| 7 Apr 2026, 07:28 | 8.3 | 8.3 °C |
| 11 Mar 2026, 08:22 | 9.3 | 9.3 °C |
| 12 Feb 2026, 11:29 | 8.5 | 8.5 °C |
| 13 Jan 2026, 11:05 | 7 | 7 °C |
| 11 Dec 2025, 08:25 | 7.9 | 7.9 °C |
| 4 Nov 2025, 14:05 | 12.2 | 12.2 °C |
| 3 Oct 2025, 13:36 | 13.9 | 13.9 °C |
| 2 Sep 2025, 11:13 | 16.6 | 16.6 °C |
| 5 Aug 2025, 13:16 | 19.3 | 19.3 °C |
| 16 Jul 2025, 08:47 | 17.6 | 17.6 °C |
| 19 Jun 2025, 10:31 | 19.2 | 19.2 °C |
| 22 May 2025, 12:07 | 15 | 15 °C |
| 22 Apr 2025, 11:02 | 12.1 | 12.1 °C |
| 19 Mar 2024, 10:58 | 11.6 | 11.6 °C |
| 5 Feb 2024, 10:27 | 7.9 | 7.9 °C |
| 18 Jan 2024, 08:17 | 0.8 | 0.8 °C |
| 7 Dec 2023, 10:07 | 5 | 5 °C |
| 6 Nov 2023, 08:40 | 9 | 9 °C |
| 23 Oct 2023, 10:30 | 9.9 | 9.9 °C |
pH
code 0061
7.67
Sampled 19 Aug 2026, 43 days ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Aug 2026, 08:47 | 7.67 | 7.67 |
| 20 Jul 2026, 08:41 | 7.83 | 7.83 |
| 8 Jun 2026, 09:43 | 7.56 | 7.56 |
| 12 May 2026, 12:50 | 7.83 | 7.83 |
| 7 Apr 2026, 07:28 | 7.73 | 7.73 |
| 11 Mar 2026, 08:22 | 7.52 | 7.52 |
| 12 Feb 2026, 11:29 | 7.55 | 7.55 |
| 13 Jan 2026, 11:05 | 7.41 | 7.41 |
| 11 Dec 2025, 08:25 | 7.19 | 7.19 |
| 4 Nov 2025, 14:05 | 7.4 | 7.4 |
| 3 Oct 2025, 13:36 | 7.48 | 7.48 |
| 2 Sep 2025, 11:13 | 7.35 | 7.35 |
| 5 Aug 2025, 13:16 | 7.61 | 7.61 |
| 16 Jul 2025, 08:47 | 7.44 | 7.44 |
| 19 Jun 2025, 10:31 | 7.65 | 7.65 |
| 22 May 2025, 12:07 | 7.76 | 7.76 |
| 22 Apr 2025, 11:02 | 7.46 | 7.46 |
| 19 Mar 2024, 10:58 | 7.62 | 7.62 |
| 5 Feb 2024, 10:27 | 7.7 | 7.7 |
| 18 Jan 2024, 08:17 | 7.63 | 7.63 |
| 7 Dec 2023, 10:07 | 7.66 | 7.66 |
| 6 Nov 2023, 08:40 | 7.45 | 7.45 |
| 23 Oct 2023, 10:30 | 7.31 | 7.31 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
1.4 mg/l
Sampled 19 Aug 2026, 43 days ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Aug 2026, 08:47 | 1.4 | 1.4 mg/l |
| 20 Jul 2026, 08:41 | 0.58 | 0.58 mg/l |
| 8 Jun 2026, 09:43 | 0.57 | 0.57 mg/l |
| 12 May 2026, 12:50 | 0.41 | 0.41 mg/l |
| 7 Apr 2026, 07:28 | 0.42 | 0.42 mg/l |
| 11 Mar 2026, 08:22 | 0.51 | 0.51 mg/l |
| 12 Feb 2026, 11:29 | 0.36 | 0.36 mg/l |
| 13 Jan 2026, 11:05 | 0.067 | 0.067 mg/l |
| 11 Dec 2025, 08:25 | 0.075 | 0.075 mg/l |
| 4 Nov 2025, 14:05 | 0.038 | 0.038 mg/l |
| 3 Oct 2025, 13:36 | 0.037 | 0.037 mg/l |
| 2 Sep 2025, 11:13 | 0.4 | 0.4 mg/l |
| 5 Aug 2025, 13:16 | 0.2 | 0.2 mg/l |
| 16 Jul 2025, 08:47 | 0.31 | 0.31 mg/l |
| 19 Jun 2025, 10:31 | 0.14 | 0.14 mg/l |
| 22 May 2025, 12:07 | 0.056 | 0.056 mg/l |
| 22 Apr 2025, 11:02 | 0.037 | 0.037 mg/l |
| 19 Mar 2024, 10:58 | 0.053 | 0.053 mg/l |
| 5 Feb 2024, 10:27 | 0.23 | 0.23 mg/l |
| 18 Jan 2024, 08:17 | 0.2 | 0.2 mg/l |
| 7 Dec 2023, 10:07 | 0.069 | 0.069 mg/l |
| 6 Nov 2023, 08:40 | 0.085 | 0.085 mg/l |
| 23 Oct 2023, 10:30 | 0.11 | 0.11 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.24 mg/l
Sampled 19 Aug 2026, 43 days ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Aug 2026, 08:47 | 0.24 | 0.24 mg/l |
| 20 Jul 2026, 08:41 | 0.17 | 0.17 mg/l |
| 8 Jun 2026, 09:43 | 0.28 | 0.28 mg/l |
| 12 May 2026, 12:50 | 0.084 | 0.084 mg/l |
| 7 Apr 2026, 07:28 | 0.069 | 0.069 mg/l |
| 11 Mar 2026, 08:22 | 0.093 | 0.093 mg/l |
| 12 Feb 2026, 11:29 | 0.15 | 0.15 mg/l |
| 13 Jan 2026, 11:05 | 0.17 | 0.17 mg/l |
| 11 Dec 2025, 08:25 | 0.17 | 0.17 mg/l |
| 4 Nov 2025, 14:05 | 0.18 | 0.18 mg/l |
| 3 Oct 2025, 13:36 | 0.23 | 0.23 mg/l |
| 2 Sep 2025, 11:13 | 0.33 | 0.33 mg/l |
| 5 Aug 2025, 13:16 | 0.38 | 0.38 mg/l |
| 16 Jul 2025, 08:47 | 0.64 | 0.64 mg/l |
| 19 Jun 2025, 10:31 | 0.69 | 0.69 mg/l |
| 22 May 2025, 12:07 | 0.38 | 0.38 mg/l |
| 22 Apr 2025, 11:02 | 0.13 | 0.13 mg/l |
| 19 Mar 2024, 10:58 | 0.21 | 0.21 mg/l |
| 5 Feb 2024, 10:27 | 0.22 | 0.22 mg/l |
| 18 Jan 2024, 08:17 | 0.22 | 0.22 mg/l |
| 7 Dec 2023, 10:07 | 0.13 | 0.13 mg/l |
| 6 Nov 2023, 08:40 | 0.14 | 0.14 mg/l |
| 23 Oct 2023, 10:30 | 0.27 | 0.27 mg/l |
Turbidity
code 6396 · NTU
3.3 NTU
Sampled 19 Aug 2026, 43 days ago · 22 results banked
Every result (22)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Aug 2026, 08:47 | 3.3 | 3.3 NTU |
| 20 Jul 2026, 08:41 | 1.8 | 1.8 NTU |
| 8 Jun 2026, 09:43 | 3.7 | 3.7 NTU |
| 12 May 2026, 12:50 | 5.3 | 5.3 NTU |
| 7 Apr 2026, 07:28 | 6.8 | 6.8 NTU |
| 11 Mar 2026, 08:22 | 4.5 | 4.5 NTU |
| 12 Feb 2026, 11:29 | 23 | 23 NTU |
| 13 Jan 2026, 11:05 | 12 | 12 NTU |
| 11 Dec 2025, 08:25 | 1.3 | 1.3 NTU |
| 4 Nov 2025, 14:05 | 1.6 | 1.6 NTU |
| 3 Oct 2025, 13:36 | <1 | below 1 NTU (not detected above this) |
| 5 Aug 2025, 13:16 | 17 | 17 NTU |
| 16 Jul 2025, 08:47 | 3.9 | 3.9 NTU |
| 19 Jun 2025, 10:31 | 4.6 | 4.6 NTU |
| 22 May 2025, 12:07 | 19 | 19 NTU |
| 22 Apr 2025, 11:02 | 3.2 | 3.2 NTU |
| 19 Mar 2024, 10:58 | 9 | 9 NTU |
| 5 Feb 2024, 10:27 | 5 | 5 NTU |
| 18 Jan 2024, 08:17 | 6.1 | 6.1 NTU |
| 7 Dec 2023, 10:07 | 5.9 | 5.9 NTU |
| 6 Nov 2023, 08:40 | 21 | 21 NTU |
| 23 Oct 2023, 10:30 | 3.3 | 3.3 NTU |
Conductivity
at 25 °C · code 0077 · µS/cm
45823 µS/cm
Sampled 19 Aug 2026, 43 days ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 19 Aug 2026, 08:47 | 45823 | 45823 µS/cm |
| 20 Jul 2026, 08:41 | 49073 | 49073 µS/cm |
| 8 Jun 2026, 09:43 | 38019 | 38019 µS/cm |
| 12 May 2026, 12:50 | 39302 | 39302 µS/cm |
| 7 Apr 2026, 07:28 | 36890 | 36890 µS/cm |
| 11 Mar 2026, 08:22 | 30562 | 30562 µS/cm |
| 12 Feb 2026, 11:29 | 8078 | 8078 µS/cm |
| 13 Jan 2026, 11:05 | 1105 | 1105 µS/cm |
| 11 Dec 2025, 08:25 | 1091 | 1091 µS/cm |
| 4 Nov 2025, 14:05 | 845 | 845 µS/cm |
| 3 Oct 2025, 13:36 | 8270 | 8270 µS/cm |
| 2 Sep 2025, 11:13 | 12821 | 12821 µS/cm |
| 5 Aug 2025, 13:16 | 2528 | 2528 µS/cm |
| 16 Jul 2025, 08:47 | 8693 | 8693 µS/cm |
| 19 Jun 2025, 10:31 | 3747 | 3747 µS/cm |
| 22 May 2025, 12:07 | 3809 | 3809 µS/cm |
| 22 Apr 2025, 11:02 | 2033 | 2033 µS/cm |
| 19 Mar 2024, 10:58 | 1793 | 1793 µS/cm |
| 5 Feb 2024, 10:27 | 2029 | 2029 µS/cm |
| 18 Jan 2024, 08:17 | 2165 | 2165 µS/cm |
| 7 Dec 2023, 10:07 | 1184 | 1184 µS/cm |
| 6 Nov 2023, 08:40 | 786 | 786 µS/cm |
| 23 Oct 2023, 10:30 | 1000 | 1000 µS/cm |
Everything measured here
30 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 30 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 23 | Oct 2023 – Aug 2026 | 74% 19 Aug 2026 |
| Temperature of Water 0076 | River water | 23 | Oct 2023 – Aug 2026 | 20.5 °C 19 Aug 2026 |
| pH 0061 | River water | 23 | Oct 2023 – Aug 2026 | 7.67 19 Aug 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 23 | Oct 2023 – Aug 2026 | 1.4 mg/l 19 Aug 2026 |
| Orthophosphate, reactive as P 0180 | River water | 23 | Oct 2023 – Aug 2026 | 0.24 mg/l 19 Aug 2026 |
| Turbidity 6396 | River water | 22 | Oct 2023 – Aug 2026 | 3.3 NTU 19 Aug 2026 |
| Conductivity at 25 C 0077 | River water | 23 | Oct 2023 – Aug 2026 | 45823 µS/cm 19 Aug 2026 |
| Aluminium 6057 | River water | 23 | Oct 2023 – Aug 2026 | 170 µg/l 19 Aug 2026 |
| Aluminium, Dissolved 6037 | River water | 23 | Oct 2023 – Aug 2026 | below 40 µg/l 19 Aug 2026 |
| Ammonia un-ionised as N 0119 | River water | 23 | Oct 2023 – Aug 2026 | 0.0261 mg/l 19 Aug 2026 |
| BOD : 5 Day ATU 0085 | River water | 23 | Oct 2023 – Aug 2026 | below 6 mg/l 19 Aug 2026 |
| Cadmium 0108 | River water | 23 | Oct 2023 – Aug 2026 | below 0.5 µg/l 19 Aug 2026 |
| Cadmium, Dissolved 0106 | River water | 23 | Oct 2023 – Aug 2026 | below 0.2 µg/l 19 Aug 2026 |
| Calcium, Dissolved 0239 | River water | 23 | Oct 2023 – Aug 2026 | 390 mg/l 19 Aug 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 23 | Oct 2023 – Aug 2026 | 3.8 mg/l 19 Aug 2026 |
| Chloride 0172 | River water | 23 | Oct 2023 – Aug 2026 | 17000 mg/l 19 Aug 2026 |
| Chromium 3164 | River water | 23 | Oct 2023 – Aug 2026 | below 3 µg/l 19 Aug 2026 |
| Chromium, Dissolved 3409 | River water | 23 | Oct 2023 – Aug 2026 | below 1 µg/l 19 Aug 2026 |
| Copper 6452 | River water | 23 | Oct 2023 – Aug 2026 | below 5 µg/l 19 Aug 2026 |
| Copper, Dissolved 6450 | River water | 23 | Oct 2023 – Aug 2026 | 2 µg/l 19 Aug 2026 |
| Hardness, Total as CaCO3 0158 | River water | 23 | Oct 2023 – Aug 2026 | 5500 mg/l 19 Aug 2026 |
| Lead 0050 | River water | 23 | Oct 2023 – Aug 2026 | below 10 µg/l 19 Aug 2026 |
| Lead, Dissolved 0052 | River water | 23 | Oct 2023 – Aug 2026 | below 4 µg/l 19 Aug 2026 |
| Magnesium, Dissolved 0235 | River water | 23 | Oct 2023 – Aug 2026 | 1100 mg/l 19 Aug 2026 |
| Nickel 6462 | River water | 23 | Oct 2023 – Aug 2026 | below 5 µg/l 19 Aug 2026 |
| Nickel, Dissolved 3410 | River water | 23 | Oct 2023 – Aug 2026 | below 2 µg/l 19 Aug 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 23 | Oct 2023 – Aug 2026 | below 0.2 mg/l 19 Aug 2026 |
| Solids, Suspended at 105 C 0135 | River water | 18 | Oct 2023 – Aug 2026 | 160 mg/l 19 Aug 2026 |
| Zinc 6455 | River water | 23 | Oct 2023 – Aug 2026 | below 30 µg/l 19 Aug 2026 |
| Zinc, Dissolved 3408 | River water | 23 | Oct 2023 – Aug 2026 | below 30 µg/l 19 Aug 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.