Overdale Brook at Derwent confluence

EA name: OVERDALE BROOK AT DERWENT CONFLUENCE
Environment Agency sampling point MD-53175681 · 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
30 Oct 2024, 10:4023 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
1 since 30 Oct 2024 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 420384, 382526As published, to the nearest 1 m. Open in a map
River, by its own name
Overdale Brook
River, by the map
Overdale BrookPlaced on the river its name gives, 7 m from the line.
Next gauge downstream
Mytham Bridge On the River Derwent · 0.9 km along the river
Why it was sampled
Planned investigation (local monitoring) (1 samples)

Main measurements, river water

pH

code 0061

7.8

Sampled 30 Oct 2024, 23 months ago · 1 result banked

678910202420252026no sample published after Oct 202430 Oct 2024, 10:40: 7.8
Every result (1)
SampledResult as publishedReads as
30 Oct 2024, 10:407.8 7.8

Everything measured here

26 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 26 rows
DeterminandMaterialResults First – lastLatest result
pH 0061 River water 1 Oct 2024 – Oct 2024 7.8 30 Oct 2024
Barium, Dissolved 9446 River water 1 Oct 2024 – Oct 2024 13 µg/l 30 Oct 2024
Boron, Dissolved 9447 River water 1 Oct 2024 – Oct 2024 below 100 µg/l 30 Oct 2024
Cadmium 0108 River water 1 Oct 2024 – Oct 2024 below 0.1 µg/l 30 Oct 2024
Cadmium, Dissolved 0106 River water 1 Oct 2024 – Oct 2024 below 0.1 µg/l 30 Oct 2024
Calcium, Dissolved 0239 River water 1 Oct 2024 – Oct 2024 14 mg/l 30 Oct 2024
Carbon, Organic, Dissolved as C :- {DOC} 0301 River water 1 Oct 2024 – Oct 2024 3.1 mg/l 30 Oct 2024
Copper 6452 River water 1 Oct 2024 – Oct 2024 1.1 µg/l 30 Oct 2024
Copper, Dissolved 6450 River water 1 Oct 2024 – Oct 2024 below 1 µg/l 30 Oct 2024
Hardness, Total as CaCO3 0158 River water 1 Oct 2024 – Oct 2024 53.5 mg/l 30 Oct 2024
Iron, Dissolved 6460 River water 1 Oct 2024 – Oct 2024 150 µg/l 30 Oct 2024
Lead 0050 River water 1 Oct 2024 – Oct 2024 below 2 µg/l 30 Oct 2024
Lead, Dissolved 0052 River water 1 Oct 2024 – Oct 2024 below 2 µg/l 30 Oct 2024
Lithium, Dissolved 4201 River water 1 Oct 2024 – Oct 2024 below 100 µg/l 30 Oct 2024
Magnesium, Dissolved 0235 River water 1 Oct 2024 – Oct 2024 4.5 mg/l 30 Oct 2024
Manganese, Dissolved 6458 River water 1 Oct 2024 – Oct 2024 below 10 µg/l 30 Oct 2024
National Grid Reference : Whole : Field report 7434 River water 1 Oct 2024 – Oct 2024 1 unitless value 30 Oct 2024
Nickel 6462 River water 1 Oct 2024 – Oct 2024 1.9 µg/l 30 Oct 2024
Nickel, Dissolved 3410 River water 1 Oct 2024 – Oct 2024 1.8 µg/l 30 Oct 2024
Potassium, Dissolved 0209 River water 1 Oct 2024 – Oct 2024 1.4 mg/l 30 Oct 2024
Sodium, Dissolved 0205 River water 1 Oct 2024 – Oct 2024 7.2 mg/l 30 Oct 2024
Solids, Suspended at 105 C 0135 River water 1 Oct 2024 – Oct 2024 below 3 mg/l 30 Oct 2024
Strontium, Filtered 6693 River water 1 Oct 2024 – Oct 2024 38 µg/l 30 Oct 2024
Sulphate, Dissolved as SO4 7859 River water 1 Oct 2024 – Oct 2024 18 mg/l 30 Oct 2024
Zinc 6455 River water 1 Oct 2024 – Oct 2024 below 5 µg/l 30 Oct 2024
Zinc, Dissolved 3408 River water 1 Oct 2024 – Oct 2024 below 5 µg/l 30 Oct 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.