Stockton Brook downstream Stockton sewage treatment works
EA name: STOCKTON BROOK DOWNSTREAM STOCKTON STW
Environment Agency sampling point MD-11108140 · 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
- 17 Mar 2026, 10:427 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
- 21 since 17 Oct 2023 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 444276, 263074As published, to the nearest 1 m. Open in a map
- River, by its own name
- Stockton Brook
- River, by the map
- Not placedNearest line is 263 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) (21 samples)
1 visit found no water to sample (recorded as “No flow”).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
106.3%
Sampled 17 Mar 2026, 7 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2026, 10:42 | 106.3 | 106.3% |
| 10 Mar 2026, 12:22 | 104.3 | 104.3% |
| 18 Feb 2026, 10:53 | 91.2 | 91.2% |
| 4 Feb 2026, 14:12 | 95.7 | 95.7% |
| 28 Jan 2026, 10:45 | 86.7 | 86.7% |
| 12 Jan 2026, 13:06 | 91.8 | 91.8% |
| 18 Dec 2025, 12:41 | 87.4 | 87.4% |
| 3 Dec 2025, 13:43 | 90.7 | 90.7% |
| 19 Nov 2025, 15:40 | 86.8 | 86.8% |
| 10 Nov 2025, 12:54 | 78.4 | 78.4% |
| 24 Feb 2025, 11:30 | 90.6 | 90.6% |
| 3 Feb 2025, 12:09 | 91.5 | 91.5% |
| 25 Jul 2024, 10:41 | 89 | 89% |
| 20 Jun 2024, 12:15 | 88.1 | 88.1% |
| 26 Apr 2024, 11:01 | 90.8 | 90.8% |
| 26 Feb 2024, 12:42 | 90.7 | 90.7% |
| 29 Jan 2024, 10:45 | 94.3 | 94.3% |
| 13 Dec 2023, 11:10 | 74.5 | 74.5% |
| 22 Nov 2023, 10:25 | 88 | 88% |
| 17 Oct 2023, 12:42 | 80.1 | 80.1% |
Dissolved oxygen
as O2 · code 9924 · mg/l
12 mg/l
Sampled 17 Mar 2026, 7 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2026, 10:42 | 12 | 12 mg/l |
| 10 Mar 2026, 12:22 | 11.9 | 11.9 mg/l |
| 18 Feb 2026, 10:53 | 11.6 | 11.6 mg/l |
| 4 Feb 2026, 14:12 | 11.5 | 11.5 mg/l |
| 28 Jan 2026, 10:45 | 10.6 | 10.6 mg/l |
| 12 Jan 2026, 13:06 | 11.1 | 11.1 mg/l |
| 18 Dec 2025, 12:41 | 9.94 | 9.94 mg/l |
| 3 Dec 2025, 13:43 | 10.9 | 10.9 mg/l |
| 19 Nov 2025, 15:40 | 10.9 | 10.9 mg/l |
| 10 Nov 2025, 12:54 | 8.59 | 8.59 mg/l |
| 24 Feb 2025, 11:30 | 10.5 | 10.5 mg/l |
| 3 Feb 2025, 12:09 | 11.4 | 11.4 mg/l |
| 25 Jul 2024, 10:41 | 8.53 | 8.53 mg/l |
| 20 Jun 2024, 12:15 | 8.47 | 8.47 mg/l |
| 26 Apr 2024, 11:01 | 10.4 | 10.4 mg/l |
| 26 Feb 2024, 12:42 | 11 | 11 mg/l |
| 29 Jan 2024, 10:45 | 11 | 11 mg/l |
| 13 Dec 2023, 11:10 | 8.92 | 8.92 mg/l |
| 22 Nov 2023, 10:25 | 10.3 | 10.3 mg/l |
| 17 Oct 2023, 12:42 | 8.86 | 8.86 mg/l |
Water temperature
code 0076 · °C
10 °C
Sampled 17 Mar 2026, 7 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2026, 10:42 | 10 | 10 °C |
| 10 Mar 2026, 12:22 | 9.5 | 9.5 °C |
| 18 Feb 2026, 10:53 | 5 | 5 °C |
| 4 Feb 2026, 14:12 | 7.5 | 7.5 °C |
| 28 Jan 2026, 10:45 | 6.8 | 6.8 °C |
| 12 Jan 2026, 13:06 | 7.1 | 7.1 °C |
| 18 Dec 2025, 12:41 | 9.6 | 9.6 °C |
| 3 Dec 2025, 13:43 | 7.4 | 7.4 °C |
| 19 Nov 2025, 15:40 | 5.6 | 5.6 °C |
| 10 Nov 2025, 12:54 | 11.2 | 11.2 °C |
| 24 Feb 2025, 11:30 | 8.7 | 8.7 °C |
| 3 Feb 2025, 12:09 | 6 | 6 °C |
| 25 Jul 2024, 10:41 | 17.3 | 17.3 °C |
| 20 Jun 2024, 12:15 | 17.1 | 17.1 °C |
| 26 Apr 2024, 11:01 | 9.3 | 9.3 °C |
| 26 Feb 2024, 12:42 | 7.1 | 7.1 °C |
| 29 Jan 2024, 10:45 | 8.4 | 8.4 °C |
| 13 Dec 2023, 11:10 | 7.5 | 7.5 °C |
| 22 Nov 2023, 10:25 | 8.3 | 8.3 °C |
| 17 Oct 2023, 12:42 | 10.8 | 10.8 °C |
pH
code 0061
7.8
Sampled 17 Mar 2026, 7 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2026, 10:42 | 7.8 | 7.8 |
| 10 Mar 2026, 12:22 | 8.03 | 8.03 |
| 18 Feb 2026, 10:53 | 7.89 | 7.89 |
| 4 Feb 2026, 14:12 | 7.98 | 7.98 |
| 28 Jan 2026, 10:45 | 7.91 | 7.91 |
| 12 Jan 2026, 13:06 | 8.06 | 8.06 |
| 18 Dec 2025, 12:41 | 7.64 | 7.64 |
| 3 Dec 2025, 13:43 | 7.84 | 7.84 |
| 19 Nov 2025, 15:40 | 7.97 | 7.97 |
| 10 Nov 2025, 12:54 | 7.8 | 7.8 |
| 24 Feb 2025, 11:30 | 7.74 | 7.74 |
| 3 Feb 2025, 12:09 | 7.85 | 7.85 |
| 25 Jul 2024, 10:41 | 7.86 | 7.86 |
| 20 Jun 2024, 12:15 | 8.03 | 8.03 |
| 26 Apr 2024, 11:01 | 8.17 | 8.17 |
| 26 Feb 2024, 12:42 | 7.9 | 7.9 |
| 29 Jan 2024, 10:45 | 8 | 8 |
| 13 Dec 2023, 11:10 | 7.7 | 7.7 |
| 22 Nov 2023, 10:25 | 7.93 | 7.93 |
| 17 Oct 2023, 12:42 | 7.7 | 7.7 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 17 Mar 2026, 7 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2026, 10:42 | <0.03 | below 0.03 mg/l (not detected above this) |
| 10 Mar 2026, 12:22 | 5.7 | 5.7 mg/l |
| 18 Feb 2026, 10:53 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Feb 2026, 14:12 | <0.03 | below 0.03 mg/l (not detected above this) |
| 28 Jan 2026, 10:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 12 Jan 2026, 13:06 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Dec 2025, 12:41 | 0.042 | 0.042 mg/l |
| 3 Dec 2025, 13:43 | 0.066 | 0.066 mg/l |
| 19 Nov 2025, 15:40 | 0.13 | 0.13 mg/l |
| 10 Nov 2025, 12:54 | 0.14 | 0.14 mg/l |
| 24 Feb 2025, 11:30 | 0.03 | 0.03 mg/l |
| 3 Feb 2025, 12:09 | 0.053 | 0.053 mg/l |
| 25 Jul 2024, 10:41 | 0.1 | 0.1 mg/l |
| 20 Jun 2024, 12:15 | 0.15 | 0.15 mg/l |
| 26 Apr 2024, 11:01 | 0.16 | 0.16 mg/l |
| 26 Feb 2024, 12:42 | 0.085 | 0.085 mg/l |
| 29 Jan 2024, 10:45 | 0.043 | 0.043 mg/l |
| 13 Dec 2023, 11:10 | 0.035 | 0.035 mg/l |
| 22 Nov 2023, 10:25 | 0.039 | 0.039 mg/l |
| 17 Oct 2023, 12:42 | 0.14 | 0.14 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
2.59 mg/l
Sampled 17 Mar 2026, 7 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2026, 10:42 | 2.59 | 2.59 mg/l |
| 10 Mar 2026, 12:22 | 9.12 | 9.12 mg/l |
| 18 Feb 2026, 10:53 | 4.69 | 4.69 mg/l |
| 4 Feb 2026, 14:12 | 5.79 | 5.79 mg/l |
| 28 Jan 2026, 10:45 | 6.19 | 6.19 mg/l |
| 12 Jan 2026, 13:06 | 7.39 | 7.39 mg/l |
| 18 Dec 2025, 12:41 | 12 | 12 mg/l |
| 3 Dec 2025, 13:43 | 15 | 15 mg/l |
| 19 Nov 2025, 15:40 | 10.9 | 10.9 mg/l |
| 10 Nov 2025, 12:54 | 0.429 | 0.429 mg/l |
| 24 Feb 2025, 11:30 | 3.57 | 3.57 mg/l |
| 3 Feb 2025, 12:09 | 3.69 | 3.69 mg/l |
| 25 Jul 2024, 10:41 | 0.391 | 0.391 mg/l |
| 20 Jun 2024, 12:15 | 0.295 | 0.295 mg/l |
| 26 Apr 2024, 11:01 | 1.88 | 1.88 mg/l |
| 26 Feb 2024, 12:42 | 2.99 | 2.99 mg/l |
| 29 Jan 2024, 10:45 | 5.57 | 5.57 mg/l |
| 13 Dec 2023, 11:10 | 4.38 | 4.38 mg/l |
| 22 Nov 2023, 10:25 | 1.79 | 1.79 mg/l |
| 17 Oct 2023, 12:42 | 4.37 | 4.37 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.05 mg/l
Sampled 17 Mar 2026, 7 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2026, 10:42 | 0.05 | 0.05 mg/l |
| 10 Mar 2026, 12:22 | 0.076 | 0.076 mg/l |
| 18 Feb 2026, 10:53 | 0.064 | 0.064 mg/l |
| 4 Feb 2026, 14:12 | 0.072 | 0.072 mg/l |
| 28 Jan 2026, 10:45 | 0.084 | 0.084 mg/l |
| 12 Jan 2026, 13:06 | 0.057 | 0.057 mg/l |
| 18 Dec 2025, 12:41 | 0.068 | 0.068 mg/l |
| 3 Dec 2025, 13:43 | 0.055 | 0.055 mg/l |
| 19 Nov 2025, 15:40 | 0.054 | 0.054 mg/l |
| 10 Nov 2025, 12:54 | 0.087 | 0.087 mg/l |
| 24 Feb 2025, 11:30 | 0.16 | 0.16 mg/l |
| 3 Feb 2025, 12:09 | 0.083 | 0.083 mg/l |
| 25 Jul 2024, 10:41 | 0.45 | 0.45 mg/l |
| 20 Jun 2024, 12:15 | 0.075 | 0.075 mg/l |
| 26 Apr 2024, 11:01 | 0.047 | 0.047 mg/l |
| 26 Feb 2024, 12:42 | 0.091 | 0.091 mg/l |
| 29 Jan 2024, 10:45 | 0.083 | 0.083 mg/l |
| 13 Dec 2023, 11:10 | 0.093 | 0.093 mg/l |
| 22 Nov 2023, 10:25 | 0.016 | 0.016 mg/l |
| 17 Oct 2023, 12:42 | 0.11 | 0.11 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
965 µS/cm
Sampled 17 Mar 2026, 7 months ago · 20 results banked
Every result (20)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Mar 2026, 10:42 | 965 | 965 µS/cm |
| 10 Mar 2026, 12:22 | 1046 | 1046 µS/cm |
| 18 Feb 2026, 10:53 | 748 | 748 µS/cm |
| 4 Feb 2026, 14:12 | 720 | 720 µS/cm |
| 28 Jan 2026, 10:45 | 635 | 635 µS/cm |
| 12 Jan 2026, 13:06 | 767 | 767 µS/cm |
| 18 Dec 2025, 12:41 | 724 | 724 µS/cm |
| 3 Dec 2025, 13:43 | 982 | 982 µS/cm |
| 19 Nov 2025, 15:40 | 1215 | 1215 µS/cm |
| 10 Nov 2025, 12:54 | 1349 | 1349 µS/cm |
| 24 Feb 2025, 11:30 | 616 | 616 µS/cm |
| 3 Feb 2025, 12:09 | 927 | 927 µS/cm |
| 25 Jul 2024, 10:41 | 849 | 849 µS/cm |
| 20 Jun 2024, 12:15 | 1480 | 1480 µS/cm |
| 26 Apr 2024, 11:01 | 1219 | 1219 µS/cm |
| 26 Feb 2024, 12:42 | 907 | 907 µS/cm |
| 29 Jan 2024, 10:45 | 702 | 702 µS/cm |
| 13 Dec 2023, 11:10 | 758 | 758 µS/cm |
| 22 Nov 2023, 10:25 | 512 | 512 µS/cm |
| 17 Oct 2023, 12:42 | 944 | 944 µS/cm |
Everything measured here
14 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 14 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 20 | Oct 2023 – Mar 2026 | 106.3% 17 Mar 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 20 | Oct 2023 – Mar 2026 | 12 mg/l 17 Mar 2026 |
| Temperature of Water 0076 | River water | 20 | Oct 2023 – Mar 2026 | 10 °C 17 Mar 2026 |
| pH 0061 | River water | 20 | Oct 2023 – Mar 2026 | 7.8 17 Mar 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 20 | Oct 2023 – Mar 2026 | below 0.03 mg/l 17 Mar 2026 |
| Nitrate as N 0117 | River water | 20 | Oct 2023 – Mar 2026 | 2.59 mg/l 17 Mar 2026 |
| Orthophosphate, reactive as P 0180 | River water | 20 | Oct 2023 – Mar 2026 | 0.05 mg/l 17 Mar 2026 |
| Conductivity at 25 C 0077 | River water | 20 | Oct 2023 – Mar 2026 | 965 µS/cm 17 Mar 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 20 | Oct 2023 – Mar 2026 | 240 mg/l 17 Mar 2026 |
| Ammonia un-ionised as N 0119 | River water | 20 | Oct 2023 – Mar 2026 | below 0.00035 mg/l 17 Mar 2026 |
| BOD : 5 Day ATU 0085 | River water | 16 | Feb 2024 – Mar 2026 | 1.7 mg/l 17 Mar 2026 |
| Nitrite as N 0118 | River water | 20 | Oct 2023 – Mar 2026 | 0.0079 mg/l 17 Mar 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 20 | Oct 2023 – Mar 2026 | 2.6 mg/l 17 Mar 2026 |
| No flow /No sample 7668 | River water | 1 | Sep 2024 – Sep 2024 | No flow/discharge at sampling point 19 Sep 2024 |
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.