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

7.87.857.97.958202420252026no sample published after Feb 20247 Nov 2023, 09:34: 7.818 Feb 2024, 11:01: 7.96
Every result (2)
SampledResult as publishedReads as
8 Feb 2024, 11:017.96 7.96
7 Nov 2023, 09:347.81 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
DeterminandMaterialResults First – lastLatest 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.