River Derwent upstream of Hillcarr Sough

EA name: RIVER DERWENT US HILLCARR SOUGH
Environment Agency sampling point MD-53176569 · 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
22 Sep 2026, 08:2133 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
Samples banked
14 since 3 Jul 2025 Imported periods: 1 Oct 2023 – 25 Oct 2026. Samples outside them are not shown here.
Latest sample
River / running surface water Monitoring (national agency policy) · results completed 14 Oct 2026
Where
National Grid 425926, 364824As published, to the nearest 1 m. Open in a map
River, by its own name
Derwent
River, by the map
River DerwentPlaced on the river its name gives, 8 m from the line.
Next gauge downstream
Matlock On the River Derwent · 10 km along the river
Nearest gauge upstream
Chatsworth On the River Derwent · 4.3 km along the riverAshford in the Water On the River Wye · 15 km along the river
Why it was sampled
Monitoring (national agency policy) (13 samples)
Planned investigation (local monitoring) (1 samples)

Results here were completed a median of 22 days after the sample was taken (14 to 22 days, 4 samples).

Main measurements, river water

Dissolved oxygen

% saturation · code 9901 · %

95.1%

Sampled 22 Sep 2026, 33 days ago · 13 results banked

92949698100102%20242025202615 Sep 2025, 09:27: 93.9%17 Oct 2025, 10:22: 101%18 Nov 2025, 08:58: 99.3%15 Dec 2025, 09:08: 94.4%26 Jan 2026, 09:02: 95%23 Feb 2026, 09:08: 99.6%16 Mar 2026, 09:29: 100.8%22 Apr 2026, 09:19: 100.5%20 May 2026, 09:33: 98.7%10 Jun 2026, 09:12: 97.8%12 Aug 2026, 09:01: 95%9 Sep 2026, 10:00: 98%22 Sep 2026, 08:21: 95.1%
Every result (13)
SampledResult as publishedReads as
22 Sep 2026, 08:2195.1 95.1%
9 Sep 2026, 10:0098 98%
12 Aug 2026, 09:0195 95%
10 Jun 2026, 09:1297.8 97.8%
20 May 2026, 09:3398.7 98.7%
22 Apr 2026, 09:19100.5 100.5%
16 Mar 2026, 09:29100.8 100.8%
23 Feb 2026, 09:0899.6 99.6%
26 Jan 2026, 09:0295 95%
15 Dec 2025, 09:0894.4 94.4%
18 Nov 2025, 08:5899.3 99.3%
17 Oct 2025, 10:22101 101%
15 Sep 2025, 09:2793.9 93.9%

Water temperature

code 0076 · °C

14 °C

Sampled 22 Sep 2026, 33 days ago · 13 results banked

5101520°C20242025202615 Sep 2025, 09:27: 12.2 °C17 Oct 2025, 10:22: 10.4 °C18 Nov 2025, 08:58: 6.4 °C15 Dec 2025, 09:08: 8.7 °C26 Jan 2026, 09:02: 5.8 °C23 Feb 2026, 09:08: 7.3 °C16 Mar 2026, 09:29: 6.6 °C22 Apr 2026, 09:19: 8.8 °C20 May 2026, 09:33: 12 °C10 Jun 2026, 09:12: 11.9 °C12 Aug 2026, 09:01: 16 °C9 Sep 2026, 10:00: 14.1 °C22 Sep 2026, 08:21: 14 °C
Every result (13)
SampledResult as publishedReads as
22 Sep 2026, 08:2114 14 °C
9 Sep 2026, 10:0014.1 14.1 °C
12 Aug 2026, 09:0116 16 °C
10 Jun 2026, 09:1211.9 11.9 °C
20 May 2026, 09:3312 12 °C
22 Apr 2026, 09:198.8 8.8 °C
16 Mar 2026, 09:296.6 6.6 °C
23 Feb 2026, 09:087.3 7.3 °C
26 Jan 2026, 09:025.8 5.8 °C
15 Dec 2025, 09:088.7 8.7 °C
18 Nov 2025, 08:586.4 6.4 °C
17 Oct 2025, 10:2210.4 10.4 °C
15 Sep 2025, 09:2712.2 12.2 °C

pH

code 0061

8.1

Sampled 22 Sep 2026, 33 days ago · 14 results banked

88.18.28.32024202520263 Jul 2025, 11:00: 8.115 Sep 2025, 09:27: 8.117 Oct 2025, 10:22: 8.118 Nov 2025, 08:58: 8.115 Dec 2025, 09:08: 8.226 Jan 2026, 09:02: 8.223 Feb 2026, 09:08: 8.116 Mar 2026, 09:29: 8.222 Apr 2026, 09:19: 8.320 May 2026, 09:33: 8.210 Jun 2026, 09:12: 8.212 Aug 2026, 09:01: 8.29 Sep 2026, 10:00: 8.222 Sep 2026, 08:21: 8.1
Every result (14)
SampledResult as publishedReads as
22 Sep 2026, 08:218.1 8.1
9 Sep 2026, 10:008.2 8.2
12 Aug 2026, 09:018.2 8.2
10 Jun 2026, 09:128.2 8.2
20 May 2026, 09:338.2 8.2
22 Apr 2026, 09:198.3 8.3
16 Mar 2026, 09:298.2 8.2
23 Feb 2026, 09:088.1 8.1
26 Jan 2026, 09:028.2 8.2
15 Dec 2025, 09:088.2 8.2
18 Nov 2025, 08:588.1 8.1
17 Oct 2025, 10:228.1 8.1
15 Sep 2025, 09:278.1 8.1
3 Jul 2025, 11:008.1 8.1

Conductivity

at 25 °C · code 0077 · µS/cm

401 µS/cm

Sampled 22 Sep 2026, 33 days ago · 13 results banked

360380400420440460µS/cm20242025202615 Sep 2025, 09:27: 390 µS/cm17 Oct 2025, 10:22: 413 µS/cm18 Nov 2025, 08:58: 431 µS/cm15 Dec 2025, 09:08: 442 µS/cm26 Jan 2026, 09:02: 400 µS/cm23 Feb 2026, 09:08: 384 µS/cm16 Mar 2026, 09:29: 434 µS/cm22 Apr 2026, 09:19: 453 µS/cm20 May 2026, 09:33: 434 µS/cm10 Jun 2026, 09:12: 417 µS/cm12 Aug 2026, 09:01: 394 µS/cm9 Sep 2026, 10:00: 376 µS/cm22 Sep 2026, 08:21: 401 µS/cm
Every result (13)
SampledResult as publishedReads as
22 Sep 2026, 08:21401 401 µS/cm
9 Sep 2026, 10:00376 376 µS/cm
12 Aug 2026, 09:01394 394 µS/cm
10 Jun 2026, 09:12417 417 µS/cm
20 May 2026, 09:33434 434 µS/cm
22 Apr 2026, 09:19453 453 µS/cm
16 Mar 2026, 09:29434 434 µS/cm
23 Feb 2026, 09:08384 384 µS/cm
26 Jan 2026, 09:02400 400 µS/cm
15 Dec 2025, 09:08442 442 µS/cm
18 Nov 2025, 08:58431 431 µS/cm
17 Oct 2025, 10:22413 413 µS/cm
15 Sep 2025, 09:27390 390 µS/cm

Everything measured here

30 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 30 rows
DeterminandMaterialResults First – lastLatest result
Oxygen, Dissolved, % Saturation 9901 River water 13 Sep 2025 – Sep 2026 95.1% 22 Sep 2026
Temperature of Water 0076 River water 13 Sep 2025 – Sep 2026 14 °C 22 Sep 2026
pH 0061 River water 14 Jul 2025 – Sep 2026 8.1 22 Sep 2026
Conductivity at 25 C 0077 River water 13 Sep 2025 – Sep 2026 401 µS/cm 22 Sep 2026
Barium, Dissolved 9446 River water 14 Jul 2025 – Sep 2026 320 µg/l 22 Sep 2026
Boron, Dissolved 9447 River water 14 Jul 2025 – Sep 2026 below 100 µg/l 22 Sep 2026
Cadmium 0108 River water 14 Jul 2025 – Sep 2026 0.16 µg/l 22 Sep 2026
Cadmium, Dissolved 0106 River water 14 Jul 2025 – Sep 2026 0.49 µg/l 22 Sep 2026
Calcium, Dissolved 0239 River water 14 Jul 2025 – Sep 2026 89 mg/l 22 Sep 2026
Carbon, Organic, Dissolved as C :- {DOC} 0301 River water 14 Jul 2025 – Sep 2026 3.1 mg/l 22 Sep 2026
Copper 6452 River water 14 Jul 2025 – Sep 2026 1.8 µg/l 22 Sep 2026
Copper, Dissolved 6450 River water 14 Jul 2025 – Sep 2026 below 1 µg/l 22 Sep 2026
Hardness, Total as CaCO3 0158 River water 14 Jul 2025 – Sep 2026 280 mg/l 22 Sep 2026
Iron, Dissolved 6460 River water 14 Jul 2025 – Sep 2026 below 30 µg/l 22 Sep 2026
Lead 0050 River water 14 Jul 2025 – Sep 2026 8.4 µg/l 22 Sep 2026
Lead, Dissolved 0052 River water 14 Jul 2025 – Sep 2026 2.2 µg/l 22 Sep 2026
Lithium, Dissolved 4201 River water 14 Jul 2025 – Sep 2026 below 100 µg/l 22 Sep 2026
Magnesium, Dissolved 0235 River water 14 Jul 2025 – Sep 2026 14 mg/l 22 Sep 2026
Manganese, Dissolved 6458 River water 14 Jul 2025 – Sep 2026 below 10 µg/l 22 Sep 2026
National Grid Reference : Whole : Field report 7434 River water 1 Jul 2025 – Jul 2025 1 unitless value 3 Jul 2025
Nickel 6462 River water 14 Jul 2025 – Sep 2026 1.9 µg/l 22 Sep 2026
Nickel, Dissolved 3410 River water 14 Jul 2025 – Sep 2026 4.3 µg/l 22 Sep 2026
pH : In Situ 3169 River water 13 Sep 2025 – Sep 2026 8.19 22 Sep 2026
Potassium, Dissolved 0209 River water 14 Jul 2025 – Sep 2026 1.6 mg/l 22 Sep 2026
Sodium, Dissolved 0205 River water 14 Jul 2025 – Sep 2026 12 mg/l 22 Sep 2026
Solids, Suspended at 105 C 0135 River water 14 Jul 2025 – Sep 2026 7.9 mg/l 22 Sep 2026
Strontium, Filtered 6693 River water 14 Jul 2025 – Sep 2026 170 µg/l 22 Sep 2026
Sulphate, Dissolved as SO4 7859 River water 14 Jul 2025 – Sep 2026 29 mg/l 22 Sep 2026
Zinc 6455 River water 14 Jul 2025 – Sep 2026 24 µg/l 22 Sep 2026
Zinc, Dissolved 3408 River water 14 Jul 2025 – Sep 2026 280 µg/l 22 Sep 2026

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.