Headwaters upstream of Ropsley sewage treatment works
EA name: HEADWATERS U/S ROPSLEY STW
Environment Agency sampling point AN-USROPLEY · 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
- 23 Mar 2026, 12:276 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
- 28 since 16 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 500165, 333028As published, to the nearest 1 m. Open in a map
- River, by its own name
- Headwaters
- River, by the map
- Not placedNearest line is 493 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) (28 samples)
5 visits found no water to sample (recorded as “No flow”).
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
116.7%
Sampled 23 Mar 2026, 6 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 23 Mar 2026, 12:27 | 116.7 | 116.7% |
| 2 Mar 2026, 10:40 | 95.2 | 95.2% |
| 18 Feb 2026, 09:50 | 93.9 | 93.9% |
| 6 Feb 2026, 12:33 | 94.2 | 94.2% |
| 21 Jan 2026, 11:40 | 94.5 | 94.5% |
| 5 Jan 2026, 10:44 | 90.5 | 90.5% |
| 18 Dec 2025, 11:18 | 95.6 | 95.6% |
| 4 Dec 2025, 12:34 | 88.8 | 88.8% |
| 25 Nov 2025, 11:33 | 91.2 | 91.2% |
| 3 Mar 2025, 11:34 | 100.1 | 100.1% |
| 14 Feb 2025, 11:54 | 99.7 | 99.7% |
| 28 Jan 2025, 11:02 | 97.8 | 97.8% |
| 5 Dec 2024, 12:43 | 94.2 | 94.2% |
| 19 Nov 2024, 11:56 | 89.7 | 89.7% |
| 13 Sep 2024, 11:18 | 51.6 | 51.6% |
| 18 Jul 2024, 10:53 | 89.9 | 89.9% |
| 18 Jun 2024, 12:05 | 95.5 | 95.5% |
| 19 Mar 2024, 12:15 | 97.1 | 97.1% |
| 19 Feb 2024, 12:33 | 94.9 | 94.9% |
| 15 Jan 2024, 12:45 | 94.2 | 94.2% |
| 4 Dec 2023, 11:10 | 97.2 | 97.2% |
| 20 Nov 2023, 10:06 | 90.2 | 90.2% |
| 16 Oct 2023, 10:36 | 91.4 | 91.4% |
Dissolved oxygen
as O2 · code 9924 · mg/l
13.5 mg/l
Sampled 23 Mar 2026, 6 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 23 Mar 2026, 12:27 | 13.5 | 13.5 mg/l |
| 2 Mar 2026, 10:40 | 11.2 | 11.2 mg/l |
| 18 Feb 2026, 09:50 | 12.2 | 12.2 mg/l |
| 6 Feb 2026, 12:33 | 11.8 | 11.8 mg/l |
| 21 Jan 2026, 11:40 | 11.8 | 11.8 mg/l |
| 5 Jan 2026, 10:44 | 12.8 | 12.8 mg/l |
| 18 Dec 2025, 11:18 | 11.1 | 11.1 mg/l |
| 4 Dec 2025, 12:34 | 10.7 | 10.7 mg/l |
| 25 Nov 2025, 11:33 | 11.3 | 11.3 mg/l |
| 3 Mar 2025, 11:34 | 12.8 | 12.8 mg/l |
| 14 Feb 2025, 11:54 | 13.1 | 13.1 mg/l |
| 28 Jan 2025, 11:02 | 12.2 | 12.2 mg/l |
| 5 Dec 2024, 12:43 | 10.8 | 10.8 mg/l |
| 19 Nov 2024, 11:56 | 11.6 | 11.6 mg/l |
| 13 Sep 2024, 11:18 | 5.44 | 5.44 mg/l |
| 18 Jul 2024, 10:53 | 8.98 | 8.98 mg/l |
| 18 Jun 2024, 12:05 | 9.93 | 9.93 mg/l |
| 19 Mar 2024, 12:15 | 10.8 | 10.8 mg/l |
| 19 Feb 2024, 12:33 | 11 | 11 mg/l |
| 15 Jan 2024, 12:45 | 12.8 | 12.8 mg/l |
| 4 Dec 2023, 11:10 | 12.6 | 12.6 mg/l |
| 20 Nov 2023, 10:06 | 10.3 | 10.3 mg/l |
| 16 Oct 2023, 10:36 | 10.8 | 10.8 mg/l |
Water temperature
code 0076 · °C
8.8 °C
Sampled 23 Mar 2026, 6 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 23 Mar 2026, 12:27 | 8.8 | 8.8 °C |
| 2 Mar 2026, 10:40 | 8.1 | 8.1 °C |
| 18 Feb 2026, 09:50 | 4.3 | 4.3 °C |
| 6 Feb 2026, 12:33 | 5.6 | 5.6 °C |
| 21 Jan 2026, 11:40 | 5.8 | 5.8 °C |
| 5 Jan 2026, 10:44 | 1.2 | 1.2 °C |
| 18 Dec 2025, 11:18 | 8.7 | 8.7 °C |
| 4 Dec 2025, 12:34 | 7.1 | 7.1 °C |
| 25 Nov 2025, 11:33 | 6.2 | 6.2 °C |
| 3 Mar 2025, 11:34 | 4.9 | 4.9 °C |
| 14 Feb 2025, 11:54 | 4 | 4 °C |
| 28 Jan 2025, 11:02 | 5.8 | 5.8 °C |
| 5 Dec 2024, 12:43 | 9.3 | 9.3 °C |
| 19 Nov 2024, 11:56 | 4.4 | 4.4 °C |
| 13 Sep 2024, 11:18 | 12.9 | 12.9 °C |
| 18 Jul 2024, 10:53 | 15.3 | 15.3 °C |
| 18 Jun 2024, 12:05 | 13.5 | 13.5 °C |
| 19 Mar 2024, 12:15 | 10.4 | 10.4 °C |
| 19 Feb 2024, 12:33 | 9 | 9 °C |
| 15 Jan 2024, 12:45 | 2.6 | 2.6 °C |
| 4 Dec 2023, 11:10 | 4.4 | 4.4 °C |
| 20 Nov 2023, 10:06 | 9.3 | 9.3 °C |
| 16 Oct 2023, 10:36 | 8 | 8 °C |
pH
code 0061
8.06
Sampled 23 Mar 2026, 6 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 23 Mar 2026, 12:27 | 8.06 | 8.06 |
| 2 Mar 2026, 10:40 | 7.98 | 7.98 |
| 18 Feb 2026, 09:50 | 8.06 | 8.06 |
| 6 Feb 2026, 12:33 | 8.09 | 8.09 |
| 21 Jan 2026, 11:40 | 8.03 | 8.03 |
| 5 Jan 2026, 10:44 | 7.87 | 7.87 |
| 18 Dec 2025, 11:18 | 7.91 | 7.91 |
| 4 Dec 2025, 12:34 | 8.04 | 8.04 |
| 25 Nov 2025, 11:33 | 7.93 | 7.93 |
| 3 Mar 2025, 11:34 | 8.06 | 8.06 |
| 14 Feb 2025, 11:54 | 8.16 | 8.16 |
| 28 Jan 2025, 11:02 | 7.98 | 7.98 |
| 5 Dec 2024, 12:43 | 7.98 | 7.98 |
| 19 Nov 2024, 11:56 | 7.96 | 7.96 |
| 13 Sep 2024, 11:18 | 7.5 | 7.5 |
| 18 Jul 2024, 10:53 | 7.91 | 7.91 |
| 18 Jun 2024, 12:05 | 7.87 | 7.87 |
| 19 Mar 2024, 12:15 | 7.98 | 7.98 |
| 19 Feb 2024, 12:33 | 7.87 | 7.87 |
| 15 Jan 2024, 12:45 | 8.13 | 8.13 |
| 4 Dec 2023, 11:10 | 7.85 | 7.85 |
| 20 Nov 2023, 10:06 | 7.93 | 7.93 |
| 16 Oct 2023, 10:36 | 7.9 | 7.9 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
below 0.03 mg/l (not detected above this)
Sampled 23 Mar 2026, 6 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 23 Mar 2026, 12:27 | <0.03 | below 0.03 mg/l (not detected above this) |
| 2 Mar 2026, 10:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Feb 2026, 09:50 | <0.03 | below 0.03 mg/l (not detected above this) |
| 6 Feb 2026, 12:33 | 0.037 | 0.037 mg/l |
| 21 Jan 2026, 11:40 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Jan 2026, 10:44 | <0.03 | below 0.03 mg/l (not detected above this) |
| 18 Dec 2025, 11:18 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Dec 2025, 12:34 | <0.03 | below 0.03 mg/l (not detected above this) |
| 25 Nov 2025, 11:33 | <0.03 | below 0.03 mg/l (not detected above this) |
| 3 Mar 2025, 11:34 | <0.03 | below 0.03 mg/l (not detected above this) |
| 14 Feb 2025, 11:54 | <0.03 | below 0.03 mg/l (not detected above this) |
| 28 Jan 2025, 11:02 | <0.03 | below 0.03 mg/l (not detected above this) |
| 5 Dec 2024, 12:43 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Nov 2024, 11:56 | <0.03 | below 0.03 mg/l (not detected above this) |
| 13 Sep 2024, 11:18 | 0.048 | 0.048 mg/l |
| 18 Jul 2024, 10:53 | 0.035 | 0.035 mg/l |
| 18 Jun 2024, 12:05 | 0.031 | 0.031 mg/l |
| 19 Mar 2024, 12:15 | <0.03 | below 0.03 mg/l (not detected above this) |
| 19 Feb 2024, 12:33 | <0.03 | below 0.03 mg/l (not detected above this) |
| 15 Jan 2024, 12:45 | <0.03 | below 0.03 mg/l (not detected above this) |
| 4 Dec 2023, 11:10 | 0.094 | 0.094 mg/l |
| 20 Nov 2023, 10:06 | <0.03 | below 0.03 mg/l (not detected above this) |
| 16 Oct 2023, 10:36 | <0.03 | below 0.03 mg/l (not detected above this) |
Nitrate
as nitrogen (N) · code 0117 · mg/l
1.59 mg/l
Sampled 23 Mar 2026, 6 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 23 Mar 2026, 12:27 | 1.59 | 1.59 mg/l |
| 2 Mar 2026, 10:40 | 2.39 | 2.39 mg/l |
| 18 Feb 2026, 09:50 | 2.6 | 2.6 mg/l |
| 6 Feb 2026, 12:33 | 9.39 | 9.39 mg/l |
| 21 Jan 2026, 11:40 | 3.6 | 3.6 mg/l |
| 5 Jan 2026, 10:44 | 3.7 | 3.7 mg/l |
| 18 Dec 2025, 11:18 | 4.6 | 4.6 mg/l |
| 4 Dec 2025, 12:34 | 24 | 24 mg/l |
| 25 Nov 2025, 11:33 | 13 | 13 mg/l |
| 3 Mar 2025, 11:34 | 3.9 | 3.9 mg/l |
| 14 Feb 2025, 11:54 | 4.7 | 4.7 mg/l |
| 28 Jan 2025, 11:02 | 5.2 | 5.2 mg/l |
| 5 Dec 2024, 12:43 | 4.79 | 4.79 mg/l |
| 19 Nov 2024, 11:56 | 2.69 | 2.69 mg/l |
| 13 Sep 2024, 11:18 | 2.89 | 2.89 mg/l |
| 18 Jul 2024, 10:53 | 2.39 | 2.39 mg/l |
| 18 Jun 2024, 12:05 | 3.18 | 3.18 mg/l |
| 19 Mar 2024, 12:15 | 4.79 | 4.79 mg/l |
| 19 Feb 2024, 12:33 | 3.29 | 3.29 mg/l |
| 15 Jan 2024, 12:45 | 3.99 | 3.99 mg/l |
| 4 Dec 2023, 11:10 | 4.38 | 4.38 mg/l |
| 20 Nov 2023, 10:06 | 7.09 | 7.09 mg/l |
| 16 Oct 2023, 10:36 | 23 | 23 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
0.02 mg/l
Sampled 23 Mar 2026, 6 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 23 Mar 2026, 12:27 | 0.02 | 0.02 mg/l |
| 2 Mar 2026, 10:40 | 0.18 | 0.18 mg/l |
| 18 Feb 2026, 09:50 | 0.044 | 0.044 mg/l |
| 6 Feb 2026, 12:33 | 0.14 | 0.14 mg/l |
| 21 Jan 2026, 11:40 | 0.24 | 0.24 mg/l |
| 5 Jan 2026, 10:44 | 0.031 | 0.031 mg/l |
| 18 Dec 2025, 11:18 | 0.048 | 0.048 mg/l |
| 4 Dec 2025, 12:34 | 0.052 | 0.052 mg/l |
| 25 Nov 2025, 11:33 | 0.033 | 0.033 mg/l |
| 3 Mar 2025, 11:34 | 0.015 | 0.015 mg/l |
| 14 Feb 2025, 11:54 | 0.025 | 0.025 mg/l |
| 28 Jan 2025, 11:02 | 0.023 | 0.023 mg/l |
| 5 Dec 2024, 12:43 | 0.017 | 0.017 mg/l |
| 19 Nov 2024, 11:56 | 0.057 | 0.057 mg/l |
| 13 Sep 2024, 11:18 | 0.18 | 0.18 mg/l |
| 18 Jul 2024, 10:53 | 0.05 | 0.05 mg/l |
| 18 Jun 2024, 12:05 | 0.053 | 0.053 mg/l |
| 19 Mar 2024, 12:15 | 0.031 | 0.031 mg/l |
| 19 Feb 2024, 12:33 | 0.065 | 0.065 mg/l |
| 15 Jan 2024, 12:45 | 0.047 | 0.047 mg/l |
| 4 Dec 2023, 11:10 | 0.19 | 0.19 mg/l |
| 20 Nov 2023, 10:06 | 0.045 | 0.045 mg/l |
| 16 Oct 2023, 10:36 | 0.11 | 0.11 mg/l |
Conductivity
at 25 °C · code 0077 · µS/cm
731 µS/cm
Sampled 23 Mar 2026, 6 months ago · 23 results banked
Every result (23)
| Sampled | Result as published | Reads as |
|---|---|---|
| 23 Mar 2026, 12:27 | 731 | 731 µS/cm |
| 2 Mar 2026, 10:40 | 531 | 531 µS/cm |
| 18 Feb 2026, 09:50 | 520 | 520 µS/cm |
| 6 Feb 2026, 12:33 | 597 | 597 µS/cm |
| 21 Jan 2026, 11:40 | 552 | 552 µS/cm |
| 5 Jan 2026, 10:44 | 796 | 796 µS/cm |
| 18 Dec 2025, 11:18 | 486 | 486 µS/cm |
| 4 Dec 2025, 12:34 | 1014 | 1014 µS/cm |
| 25 Nov 2025, 11:33 | 621 | 621 µS/cm |
| 3 Mar 2025, 11:34 | 816 | 816 µS/cm |
| 14 Feb 2025, 11:54 | 747 | 747 µS/cm |
| 28 Jan 2025, 11:02 | 466 | 466 µS/cm |
| 5 Dec 2024, 12:43 | 531 | 531 µS/cm |
| 19 Nov 2024, 11:56 | 875 | 875 µS/cm |
| 13 Sep 2024, 11:18 | 1109 | 1109 µS/cm |
| 18 Jul 2024, 10:53 | 757 | 757 µS/cm |
| 18 Jun 2024, 12:05 | 979 | 979 µS/cm |
| 19 Mar 2024, 12:15 | 677 | 677 µS/cm |
| 19 Feb 2024, 12:33 | 555 | 555 µS/cm |
| 15 Jan 2024, 12:45 | 812 | 812 µS/cm |
| 4 Dec 2023, 11:10 | 437 | 437 µS/cm |
| 20 Nov 2023, 10:06 | 659 | 659 µS/cm |
| 16 Oct 2023, 10:36 | 874 | 874 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 | 23 | Oct 2023 – Mar 2026 | 116.7% 23 Mar 2026 |
| Oxygen, Dissolved as O2 9924 | River water | 23 | Oct 2023 – Mar 2026 | 13.5 mg/l 23 Mar 2026 |
| Temperature of Water 0076 | River water | 23 | Oct 2023 – Mar 2026 | 8.8 °C 23 Mar 2026 |
| pH 0061 | River water | 23 | Oct 2023 – Mar 2026 | 8.06 23 Mar 2026 |
| Ammoniacal Nitrogen as N 0111 | River water | 23 | Oct 2023 – Mar 2026 | below 0.03 mg/l 23 Mar 2026 |
| Nitrate as N 0117 | River water | 23 | Oct 2023 – Mar 2026 | 1.59 mg/l 23 Mar 2026 |
| Orthophosphate, reactive as P 0180 | River water | 23 | Oct 2023 – Mar 2026 | 0.02 mg/l 23 Mar 2026 |
| Conductivity at 25 C 0077 | River water | 23 | Oct 2023 – Mar 2026 | 731 µS/cm 23 Mar 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 23 | Oct 2023 – Mar 2026 | 260 mg/l 23 Mar 2026 |
| Ammonia un-ionised as N 0119 | River water | 23 | Oct 2023 – Mar 2026 | below 0.0005 mg/l 23 Mar 2026 |
| BOD : 5 Day ATU 0085 | River water | 18 | Feb 2024 – Mar 2026 | 1.2 mg/l 23 Mar 2026 |
| Nitrite as N 0118 | River water | 23 | Oct 2023 – Mar 2026 | 0.0065 mg/l 23 Mar 2026 |
| Nitrogen, Total Oxidised as N 0116 | River water | 23 | Oct 2023 – Mar 2026 | 1.6 mg/l 23 Mar 2026 |
| No flow /No sample 7668 | River water | 5 | Apr 2024 – Nov 2025 | No flow/discharge at sampling point 6 Nov 2025 |
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.