North Killingholme Main Drain downstream of Killingholme sewage treatment works
EA name: N KILLINGHOLME MAIN DRN.D/S KILLING'M SW (also listed as “NORTH KILLINGHOLME MAIN DRN.D/S OF KILLINGHOLME STW”)
Environment Agency sampling point AN-NKILLMDD · 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 Mar 2025, 10:4318 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
- 36 since 6 Oct 2023 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- River / running surface water Planned investigation (local monitoring)
- Where
- National Grid 516021, 418854As 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 placedNearest line is 481 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
- Planned investigation (local monitoring) (34 samples)
Environmental monitoring statutory (EU directives) (2 samples)
Main measurements, river water
pH
code 0061
7.96
Sampled 8 Feb 2024, 2.6 years ago · 2 results banked
Every result (2)
| Sampled | Result as published | Reads as |
|---|---|---|
| 8 Feb 2024, 11:01 | 7.96 | 7.96 |
| 7 Nov 2023, 09:34 | 7.81 | 7.81 |
Everything measured here
11 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 11 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| pH 0061 | River water | 2 | Nov 2023 – Feb 2024 | 7.96 8 Feb 2024 |
| Calcium, Dissolved 0239 | River water | 2 | Nov 2023 – Feb 2024 | 160 mg/l 8 Feb 2024 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 2 | Nov 2023 – Feb 2024 | 12 mg/l 8 Feb 2024 |
| Lead : BLM Bioavailable 3377 | River water | 2 | Nov 2023 – Feb 2024 | 0.02 µg/l 8 Feb 2024 |
| Lead, Dissolved 0052 | River water | 2 | Nov 2023 – Feb 2024 | 0.2 µg/l 8 Feb 2024 |
| Mercury, Dissolved 0103 | River water | 18 | Oct 2023 – Mar 2025 | below 0.01 µg/l 19 Mar 2025 |
| Nickel : BLM Bioavailable 3878 | River water | 2 | Nov 2023 – Feb 2024 | 0.71 µg/l 8 Feb 2024 |
| Nickel, Dissolved 3410 | River water | 2 | Nov 2023 – Feb 2024 | 3.5 µg/l 8 Feb 2024 |
| Dry Solids at 30 C 9589 | Any solid/sediment - unspecified | 16 | Oct 2023 – Feb 2025 | 60% 25 Feb 2025 |
| Mercury : Dry Wt 0270 | Any solid/sediment - unspecified | 16 | Oct 2023 – Feb 2025 | 0.52 milligram per kilogram 25 Feb 2025 |
| Sample Preparation 8394 | Any solid/sediment - unspecified | 16 | Oct 2023 – Feb 2025 | 1 text result 25 Feb 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.