River Severn (Upper) Kempsey (Mid)

EA name: R SEVERN (UPPER) KEMPSEY (MID) (also listed as “RIVER SEVERN (UPPER) KEMPSEY (MID)”)
Environment Agency sampling point MD-00029500 · 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
15 Oct 2024, 09:442 years 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 28 Oct 2026 and had nothing newer.
Samples banked
3 since 8 Apr 2024 Imported periods: 1 Oct 2023 – 28 Oct 2026. Samples outside them are not shown here.
Latest sample
River / running surface water Monitoring (national agency policy)
Where
National Grid 384690, 249280As published, to the nearest 10 m. Open in a map
River, by its own name
Severn
River, by the map
Afon HafrenPlaced on the river its name gives, 24 m from the line.
Next gauge downstream
Saxons Lode On the River Severn · 14 km along the river
Nearest gauge upstream
Kempsey Yacht Club On the River Severn · 1.9 km along the river
Why it was sampled
Monitoring (national agency policy) (3 samples)

Main measurements, river water

Dissolved oxygen

% saturation · code 9901 · %

92.6%

Sampled 15 Oct 2024, 2 years ago · 2 results banked

9293949596%202420252026no sample published after Oct 202416 Sep 2024, 11:04: 95.5%15 Oct 2024, 09:44: 92.6%
Every result (2)
SampledResult as publishedReads as
15 Oct 2024, 09:4492.6 92.6%
16 Sep 2024, 11:0495.5 95.5%

Dissolved oxygen

as O2 · code 9924 · mg/l

10.3 mg/l

Sampled 15 Oct 2024, 2 years ago · 2 results banked

9.81010.210.4mg/l202420252026no sample published after Oct 202416 Sep 2024, 11:04: 9.86 mg/l15 Oct 2024, 09:44: 10.3 mg/l
Every result (2)
SampledResult as publishedReads as
15 Oct 2024, 09:4410.3 10.3 mg/l
16 Sep 2024, 11:049.86 9.86 mg/l

Water temperature

code 0076 · °C

10.4 °C

Sampled 15 Oct 2024, 2 years ago · 2 results banked

1011121314°C202420252026no sample published after Oct 202416 Sep 2024, 11:04: 13.8 °C15 Oct 2024, 09:44: 10.4 °C
Every result (2)
SampledResult as publishedReads as
15 Oct 2024, 09:4410.4 10.4 °C
16 Sep 2024, 11:0413.8 13.8 °C

pH

code 0061

7.6

Sampled 15 Oct 2024, 2 years ago · 2 results banked

7.57.67.77.87.98202420252026no sample published after Oct 202416 Sep 2024, 11:04: 7.9415 Oct 2024, 09:44: 7.6
Every result (2)
SampledResult as publishedReads as
15 Oct 2024, 09:447.6 7.6
16 Sep 2024, 11:047.94 7.94

Ammonia

ammoniacal nitrogen as N · code 0111 · mg/l

0.038 mg/l

Sampled 15 Oct 2024, 2 years ago · 2 results banked

0.0380.0390.040.041mg/l202420252026no sample published after Oct 202416 Sep 2024, 11:04: 0.041 mg/l15 Oct 2024, 09:44: 0.038 mg/l
Every result (2)
SampledResult as publishedReads as
15 Oct 2024, 09:440.038 0.038 mg/l
16 Sep 2024, 11:040.041 0.041 mg/l

Nitrate

as nitrogen (N) · code 0117 · mg/l

3.99 mg/l

Sampled 15 Oct 2024, 2 years ago · 2 results banked

3.944.14.24.34.4mg/l202420252026no sample published after Oct 202416 Sep 2024, 11:04: 4.39 mg/l15 Oct 2024, 09:44: 3.99 mg/l
Every result (2)
SampledResult as publishedReads as
15 Oct 2024, 09:443.99 3.99 mg/l
16 Sep 2024, 11:044.39 4.39 mg/l

Phosphate

orthophosphate, reactive, as P · code 0180 · mg/l

0.11 mg/l

Sampled 15 Oct 2024, 2 years ago · 2 results banked

0.110.120.130.140.15mg/l202420252026no sample published after Oct 202416 Sep 2024, 11:04: 0.15 mg/l15 Oct 2024, 09:44: 0.11 mg/l
Every result (2)
SampledResult as publishedReads as
15 Oct 2024, 09:440.11 0.11 mg/l
16 Sep 2024, 11:040.15 0.15 mg/l

Conductivity

at 25 °C · code 0077 · µS/cm

424 µS/cm

Sampled 15 Oct 2024, 2 years ago · 2 results banked

420430440450460µS/cm202420252026no sample published after Oct 202416 Sep 2024, 11:04: 452 µS/cm15 Oct 2024, 09:44: 424 µS/cm
Every result (2)
SampledResult as publishedReads as
15 Oct 2024, 09:44424 424 µS/cm
16 Sep 2024, 11:04452 452 µS/cm

Everything measured here

60 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 60 rows
DeterminandMaterialResults First – lastLatest result
Oxygen, Dissolved, % Saturation 9901 River water 2 Sep 2024 – Oct 2024 92.6% 15 Oct 2024
Oxygen, Dissolved as O2 9924 River water 2 Sep 2024 – Oct 2024 10.3 mg/l 15 Oct 2024
Temperature of Water 0076 River water 2 Sep 2024 – Oct 2024 10.4 °C 15 Oct 2024
pH 0061 River water 2 Sep 2024 – Oct 2024 7.6 15 Oct 2024
Ammoniacal Nitrogen as N 0111 River water 2 Sep 2024 – Oct 2024 0.038 mg/l 15 Oct 2024
Nitrate as N 0117 River water 2 Sep 2024 – Oct 2024 3.99 mg/l 15 Oct 2024
Orthophosphate, reactive as P 0180 River water 2 Sep 2024 – Oct 2024 0.11 mg/l 15 Oct 2024
Conductivity at 25 C 0077 River water 2 Sep 2024 – Oct 2024 424 µS/cm 15 Oct 2024
11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 River water 1 Apr 2024 – Apr 2024 below 0.001 µg/l 8 Apr 2024
2-(N-Ethylperfluorooctanesulfonamido)acetic acid (B) 2942 River water 1 Apr 2024 – Apr 2024 below 0.001 µg/l 8 Apr 2024
2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 River water 1 Apr 2024 – Apr 2024 below 0.001 µg/l 8 Apr 2024
2-(N-Methylperfluorooctanesulfonamido)acetic acid (B) 2943 River water 1 Apr 2024 – Apr 2024 below 0.002 µg/l 8 Apr 2024
2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 River water 1 Apr 2024 – Apr 2024 below 0.0005 µg/l 8 Apr 2024
2H,2H,3H,3H-Perfluorooctanoic acid 2989 River water 1 Apr 2024 – Apr 2024 below 0.001 µg/l 8 Apr 2024
3-Perfluoroheptylpropanoic acid 2925 River water 1 Apr 2024 – Apr 2024 below 0.0005 µg/l 8 Apr 2024
3:3 Fluorotelomer carboxylic acid 2926 River water 1 Apr 2024 – Apr 2024 below 0.004 µg/l 8 Apr 2024
4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 River water 1 Apr 2024 – Apr 2024 below 0.005 µg/l 8 Apr 2024
4:2 Fluorotelomer sulfonic acid 2987 River water 1 Apr 2024 – Apr 2024 below 0.0005 µg/l 8 Apr 2024
6:2 Fluorotelomer sulfonic acid 2984 River water 1 Apr 2024 – Apr 2024 below 0.001 µg/l 8 Apr 2024
8:2 Fluorotelomer sulfonic acid 2983 River water 1 Apr 2024 – Apr 2024 below 0.001 µg/l 8 Apr 2024
9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 River water 1 Apr 2024 – Apr 2024 below 0.0005 µg/l 8 Apr 2024
Alkalinity to pH 4.5 as CaCO3 0162 River water 2 Sep 2024 – Oct 2024 120 mg/l 15 Oct 2024
Ammonia un-ionised as N 0119 River water 2 Sep 2024 – Oct 2024 0.00029 mg/l 15 Oct 2024
BOD : 5 Day ATU 0085 River water 2 Sep 2024 – Oct 2024 1.2 mg/l 15 Oct 2024
Hexafluoropropylene oxide dimer acid (Gen X) 2981 River water 1 Apr 2024 – Apr 2024 below 0.001 µg/l 8 Apr 2024
N-Ethylperfluorooctanesulfonamide 2977 River water 1 Apr 2024 – Apr 2024 below 0.002 µg/l 8 Apr 2024
N-methylperfluorooctanesulfonamide 2975 River water 1 Apr 2024 – Apr 2024 below 0.002 µg/l 8 Apr 2024
Nitrite as N 0118 River water 2 Sep 2024 – Oct 2024 0.015 mg/l 15 Oct 2024
Nitrogen, Total Oxidised as N 0116 River water 2 Sep 2024 – Oct 2024 4 mg/l 15 Oct 2024
Perfluoro(2-ethoxyethane)sulfonic acid 2924 River water 1 Apr 2024 – Apr 2024 below 0.0005 µg/l 8 Apr 2024
Perfluoro(4-methoxybutanoic) acid 2923 River water 1 Apr 2024 – Apr 2024 below 0.0005 µg/l 8 Apr 2024
Perfluoro-3,6-dioxaheptanoic acid 2922 River water 1 Apr 2024 – Apr 2024 below 0.0005 µg/l 8 Apr 2024
Perfluoro-3-methoxypropanoic acid 2921 River water 1 Apr 2024 – Apr 2024 below 0.0005 µg/l 8 Apr 2024
Perfluoro-4-ethylcyclohexanesulfonic acid 2973 River water 1 Apr 2024 – Apr 2024 below 0.0005 µg/l 8 Apr 2024
Perfluorobutanesulfonic acid 2972 River water 1 Apr 2024 – Apr 2024 below 0.001 µg/l 8 Apr 2024
Perfluorobutanoic acid 2995 River water 1 Apr 2024 – Apr 2024 0.0025 µg/l 8 Apr 2024
Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 River water 1 Apr 2024 – Apr 2024 below 0.0005 µg/l 8 Apr 2024
Perfluorodecanesulfonic acid 2969 River water 1 Apr 2024 – Apr 2024 below 0.002 µg/l 8 Apr 2024
Perfluorodecanoic acid 8892 River water 1 Apr 2024 – Apr 2024 below 0.002 µg/l 8 Apr 2024
Perfluorododecane sulfonic acid 2968 River water 1 Apr 2024 – Apr 2024 below 0.005 µg/l 8 Apr 2024
Perfluorododecanoic acid 8894 River water 1 Apr 2024 – Apr 2024 below 0.002 µg/l 8 Apr 2024
Perfluoroheptanesulfonic acid 2967 River water 1 Apr 2024 – Apr 2024 below 0.0005 µg/l 8 Apr 2024
Perfluoroheptanoic acid 8889 River water 1 Apr 2024 – Apr 2024 below 0.001 µg/l 8 Apr 2024
Perfluorohexanesulfonamide 2965 River water 1 Apr 2024 – Apr 2024 below 0.0005 µg/l 8 Apr 2024
Perfluorohexanesulfonic acid (B) 2944 River water 1 Apr 2024 – Apr 2024 below 0.0005 µg/l 8 Apr 2024
Perfluorohexanesulfonic acid (L) 2964 River water 1 Apr 2024 – Apr 2024 below 0.0005 µg/l 8 Apr 2024
Perfluorohexanoic acid 8888 River water 1 Apr 2024 – Apr 2024 0.0012 µg/l 8 Apr 2024
Perfluorononanesulfonic acid 2963 River water 1 Apr 2024 – Apr 2024 below 0.0005 µg/l 8 Apr 2024
Perfluorononanoic acid 8891 River water 1 Apr 2024 – Apr 2024 below 0.001 µg/l 8 Apr 2024
Perfluorooctadecanoic acid 2962 River water 1 Apr 2024 – Apr 2024 below 0.002 µg/l 8 Apr 2024
Perfluorooctanesulfonamide 2961 River water 1 Apr 2024 – Apr 2024 below 0.001 µg/l 8 Apr 2024
Perfluorooctanesulfonic acid (branched) 2960 River water 1 Apr 2024 – Apr 2024 below 0.0005 µg/l 8 Apr 2024
Perfluorooctanesulfonic acid (linear) 2959 River water 1 Apr 2024 – Apr 2024 below 0.0005 µg/l 8 Apr 2024
Perfluorooctanoic acid 8890 River water 1 Apr 2024 – Apr 2024 0.001 µg/l 8 Apr 2024
Perfluoropentanesulfonic acid 2957 River water 1 Apr 2024 – Apr 2024 below 0.0005 µg/l 8 Apr 2024
Perfluoropentanoic acid 8887 River water 1 Apr 2024 – Apr 2024 below 0.001 µg/l 8 Apr 2024
Perfluorotetradecanoic acid 8895 River water 1 Apr 2024 – Apr 2024 below 0.006 µg/l 8 Apr 2024
Perfluorotridecanoic acid 2955 River water 1 Apr 2024 – Apr 2024 below 0.005 µg/l 8 Apr 2024
Perfluoroundecane sulfonic acid 2953 River water 1 Apr 2024 – Apr 2024 below 0.004 µg/l 8 Apr 2024
Perfluoroundecanoic acid 8893 River water 1 Apr 2024 – Apr 2024 below 0.002 µg/l 8 Apr 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.