Lune Catchment Sample Point

EA name: LUNE CATCHMENT SAMPLE POINT
Environment Agency sampling point NW-88023586 · 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: 26 Aug 2026, 10:1836 days ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
Samples banked: 28 since 13 Dec 2023 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
Latest sample: Final sewage effluent Unplanned reactive monitoring (pollution incidents)
Where: National Grid 500000, 4As 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 placedNo mapped watercourse within 500 m. The river map cannot say which watercourse this is.
Next gauge downstream: Not known
Why it was sampled: Unplanned reactive monitoring (pollution incidents) (27 samples)
Unplanned reactive monitoring formal (pollution incidents) (1 samples)

Main measurements, river water

Dissolved oxygen

% saturation · code 9901 · %

102.1%

Sampled 21 Aug 2025, 13 months ago · 4 results banked

Also measured in percentage on another sample material (4CZZ): 10 results, kept apart (see the table).

Also measured in percentage on another sample material (2CZZ): 6 results, kept apart (see the table).

Every result (4)

Sampled	Result as published	Reads as
21 Aug 2025, 14:50	102.1	102.1%
21 Aug 2025, 13:45	108.3	108.3%
21 Aug 2025, 13:30	128.8	128.8%
16 Aug 2025, 10:29	122.4	122.4%

Water temperature

code 0076 · °C

14 °C

Sampled 21 Aug 2025, 13 months ago · 4 results banked

Also measured in celsius on another sample material (4CZZ): 10 results, kept apart (see the table).

Also measured in celsius on another sample material (2CZZ): 6 results, kept apart (see the table).

Every result (4)

Sampled	Result as published	Reads as
21 Aug 2025, 14:50	14	14 °C
21 Aug 2025, 13:45	14.3	14.3 °C
21 Aug 2025, 13:30	15.1	15.1 °C
16 Aug 2025, 10:29	20.02	20.02 °C

pH

code 0061

7.97

Sampled 21 Aug 2025, 13 months ago · 4 results banked

Also measured in ph units on another sample material (4CZZ): 10 results, kept apart (see the table).

Also measured in ph units on another sample material (2CZZ): 6 results, kept apart (see the table).

Every result (4)

Sampled	Result as published	Reads as
21 Aug 2025, 14:50	7.97	7.97
21 Aug 2025, 13:45	8.74	8.74
21 Aug 2025, 13:30	9.31	9.31
16 Aug 2025, 10:29	8.44	8.44

Ammonia

ammoniacal nitrogen as N · code 0111 · mg/l

0.034 mg/l

Sampled 29 Oct 2025, 11 months ago · 7 results banked

Also measured in milligram per litre on another sample material (2CZZ): 4 results, kept apart (see the table).

Also measured in milligram per litre on another sample material (4CZZ): 4 results, kept apart (see the table).

Also measured in milligram per litre on another sample material (4AZZ): 1 result, kept apart (see the table).

Every result (7)

Sampled	Result as published	Reads as
29 Oct 2025, 14:26	0.034	0.034 mg/l
29 Oct 2025, 13:41	2.4	2.4 mg/l
21 Aug 2025, 14:50	<0.03	below 0.03 mg/l (not detected above this)
21 Aug 2025, 13:45	<0.03	below 0.03 mg/l (not detected above this)
21 Aug 2025, 13:30	<0.03	below 0.03 mg/l (not detected above this)
16 Aug 2025, 10:29	0.037	0.037 mg/l
2 Jul 2025, 13:10	15	15 mg/l

Phosphate

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

0.021 mg/l

Sampled 29 Oct 2025, 11 months ago · 7 results banked

Also measured in milligram per litre on another sample material (2CZZ): 4 results, kept apart (see the table).

Also measured in milligram per litre on another sample material (4CZZ): 4 results, kept apart (see the table).

Also measured in milligram per litre on another sample material (4AZZ): 1 result, kept apart (see the table).

Every result (7)

Sampled	Result as published	Reads as
29 Oct 2025, 14:26	0.021	0.021 mg/l
29 Oct 2025, 13:41	0.27	0.27 mg/l
21 Aug 2025, 14:50	<0.01	below 0.01 mg/l (not detected above this)
21 Aug 2025, 13:45	<0.01	below 0.01 mg/l (not detected above this)
21 Aug 2025, 13:30	<0.01	below 0.01 mg/l (not detected above this)
16 Aug 2025, 10:29	0.1	0.1 mg/l
2 Jul 2025, 13:10	1	1 mg/l

Turbidity

code 6396 · NTU

1.2 NTU

Sampled 16 Aug 2025, 14 months ago · 1 result banked

Also measured in nephelometric turbidity units on another sample material (4CZZ): 5 results, kept apart (see the table).

Also measured in nephelometric turbidity units on another sample material (2CZZ): 4 results, kept apart (see the table).

Every result (1)

Sampled	Result as published	Reads as
16 Aug 2025, 10:29	1.2	1.2 NTU

E. coli

confirmed, membrane filtration · code 2348 · per 100 ml

910 per 100 ml

Sampled 2 Jul 2025, 15 months ago · 1 result banked

Every result (1)

Sampled	Result as published	Reads as
2 Jul 2025, 13:10	910	910 per 100 ml

Everything measured here

104 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 217 rows

Determinand	Material	Results	First – last	Latest result
Oxygen, Dissolved, % Saturation 9901	River water	4	Aug 2025 – Aug 2025	102.1% 21 Aug 2025
Oxygen, Dissolved, % Saturation 9901	Surface drainage	6	Dec 2023 – Dec 2023	33% 19 Dec 2023
Oxygen, Dissolved, % Saturation 9901	Storm sewer overflow discharge	10	Dec 2023 – Dec 2023	86.4% 21 Dec 2023
Temperature of Water 0076	River water	4	Aug 2025 – Aug 2025	14 °C 21 Aug 2025
Temperature of Water 0076	Surface drainage	6	Dec 2023 – Dec 2023	10.5 °C 19 Dec 2023
Temperature of Water 0076	Storm sewer overflow discharge	10	Dec 2023 – Dec 2023	9.1 °C 21 Dec 2023
pH 0061	River water	4	Aug 2025 – Aug 2025	7.97 21 Aug 2025
pH 0061	Surface drainage	6	Dec 2023 – Dec 2023	7.05 19 Dec 2023
pH 0061	Storm sewer overflow discharge	10	Dec 2023 – Dec 2023	7.71 21 Dec 2023
Ammoniacal Nitrogen as N 0111	River water	7	Jul 2025 – Oct 2025	0.034 mg/l 29 Oct 2025
Ammoniacal Nitrogen as N 0111	Surface drainage	4	Dec 2023 – Dec 2023	21 mg/l 19 Dec 2023
Ammoniacal Nitrogen as N 0111	Storm sewer overflow discharge	4	Dec 2023 – Dec 2023	below 0.03 mg/l 21 Dec 2023
Ammoniacal Nitrogen as N 0111	Final sewage effluent	1	Aug 2026 – Aug 2026	15 mg/l 26 Aug 2026
Orthophosphate, reactive as P 0180	River water	7	Jul 2025 – Oct 2025	0.021 mg/l 29 Oct 2025
Orthophosphate, reactive as P 0180	Surface drainage	4	Dec 2023 – Dec 2023	0.1 mg/l 19 Dec 2023
Orthophosphate, reactive as P 0180	Storm sewer overflow discharge	4	Dec 2023 – Dec 2023	0.014 mg/l 21 Dec 2023
Orthophosphate, reactive as P 0180	Final sewage effluent	1	Aug 2026 – Aug 2026	11 mg/l 26 Aug 2026
Turbidity 6396	River water	1	Aug 2025 – Aug 2025	1.2 NTU 16 Aug 2025
Turbidity 6396	Surface drainage	4	Dec 2023 – Dec 2023	190 NTU 19 Dec 2023
Turbidity 6396	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	2.2 NTU 21 Dec 2023
Conductivity at 25 C 0077	Surface drainage	6	Dec 2023 – Dec 2023	2105 µS/cm 19 Dec 2023
Conductivity at 25 C 0077	Storm sewer overflow discharge	10	Dec 2023 – Dec 2023	527 µS/cm 21 Dec 2023
Escherichia coli : Confirmed : MF 2348	River water	1	Jul 2025 – Jul 2025	910 per 100 ml 2 Jul 2025
Ammonia un-ionised as N 0119	River water	4	Aug 2025 – Aug 2025	below 0.00068 mg/l 21 Aug 2025
BOD : 5 Day ATU 0085	River water	7	Jul 2025 – Oct 2025	1.2 mg/l 29 Oct 2025
Chemical Oxygen Demand :- {COD} 0092	River water	6	Jul 2025 – Oct 2025	27 mg/l 29 Oct 2025
Chloride 0172	River water	7	Jul 2025 – Oct 2025	10 mg/l 29 Oct 2025
Enterococci: Intestinal: Confirmed: MF 3723	River water	1	Jul 2025 – Jul 2025	600 colony forming units / 100ml 2 Jul 2025
Enterococci: Intestinal: Presumptive: MF 3722	River water	1	Jul 2025 – Jul 2025	2000 colony forming units / 100ml 2 Jul 2025
GCMS Screen : Semi-Volatile Screen: Semi Quantitative 3106	River water	4	Aug 2025 – Aug 2025	1 unitless value 21 Aug 2025
ICP-MS : Metals screen : Semi-quantitative 3401	River water	4	Aug 2025 – Aug 2025	1 unitless value 21 Aug 2025
National Grid Reference : Whole : Field report 7434	River water	6	Jul 2025 – Oct 2025	1 unitless value 29 Oct 2025
Nitrite as N 0118	River water	6	Jul 2025 – Oct 2025	below 0.004 mg/l 29 Oct 2025
Nitrogen, Total Oxidised as N 0116	River water	7	Jul 2025 – Oct 2025	2.1 mg/l 29 Oct 2025
Salinity : In Situ 7608	River water	2	Aug 2025 – Aug 2025	0.07 parts per thousand 21 Aug 2025
Solids, Suspended at 105 C 0135	River water	7	Jul 2025 – Oct 2025	below 3 mg/l 29 Oct 2025
Visible oil or grease, significant trace: Present/Not found (1/0) 0664	River water	4	Aug 2025 – Aug 2025	Not found 21 Aug 2025
1-Butanol :- {Butan-1-ol} 4888	Surface drainage	4	Dec 2023 – Dec 2023	below 500 µg/l 19 Dec 2023
1-Butanol :- {Butan-1-ol} 4888	Storm sewer overflow discharge	3	Dec 2023 – Dec 2023	below 500 µg/l 19 Dec 2023
1-Propanol :- {n-Propanol} 4329	Surface drainage	4	Dec 2023 – Dec 2023	below 500 µg/l 19 Dec 2023
1-Propanol :- {n-Propanol} 4329	Storm sewer overflow discharge	3	Dec 2023 – Dec 2023	below 500 µg/l 19 Dec 2023
2,3-Dichlorophenol 9453	Surface drainage	4	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
2,3-Dichlorophenol 9453	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	below 0.2 µg/l 21 Dec 2023
2,3-Dimethylphenol :- {2,3-Xylenol} 9451	Surface drainage	4	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
2,3-Dimethylphenol :- {2,3-Xylenol} 9451	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	below 0.2 µg/l 21 Dec 2023
2,4,5-Trichlorophenol 9818	Surface drainage	4	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
2,4,5-Trichlorophenol 9818	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	below 0.2 µg/l 21 Dec 2023
2,4,6-Trichlorophenol 9819	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	below 0.2 µg/l 21 Dec 2023
2,4-Dichlorophenol 9816	Surface drainage	4	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
2,4-Dichlorophenol 9816	Storm sewer overflow discharge	2	Dec 2023 – Dec 2023	below 0.2 µg/l 21 Dec 2023
2,4-Dimethylphenol :- {2,4-Xylenol} 3343	Surface drainage	4	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
2,4-Dimethylphenol :- {2,4-Xylenol} 3343	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	below 0.2 µg/l 21 Dec 2023
2,5-Dichlorophenol 9091	Surface drainage	4	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
2,5-Dichlorophenol 9091	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	below 0.2 µg/l 21 Dec 2023
2,5-Dimethylphenol :- {2,5-Xylenol} 9094	Surface drainage	4	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
2,5-Dimethylphenol :- {2,5-Xylenol} 9094	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	below 0.2 µg/l 21 Dec 2023
2,6-Dichlorophenol 9817	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	below 0.2 µg/l 21 Dec 2023
2,6-Dimethylphenol :- {2,6-Xylenol} 6569	Surface drainage	4	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
2,6-Dimethylphenol :- {2,6-Xylenol} 6569	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	below 0.2 µg/l 21 Dec 2023
2-Butanol :- {Butan-2-ol} 4330	Surface drainage	4	Dec 2023 – Dec 2023	below 1000 µg/l 19 Dec 2023
2-Butanol :- {Butan-2-ol} 4330	Storm sewer overflow discharge	3	Dec 2023 – Dec 2023	below 500 µg/l 19 Dec 2023
2-Chlorophenol 9814	Surface drainage	4	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
2-Chlorophenol 9814	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	below 0.2 µg/l 21 Dec 2023
2-Ethyl phenol 9454	Surface drainage	4	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
2-Ethyl phenol 9454	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	below 0.2 µg/l 21 Dec 2023
2-Methylphenol :- {o-Cresol} 5562	Surface drainage	4	Dec 2023 – Dec 2023	17 µg/l 19 Dec 2023
2-Methylphenol :- {o-Cresol} 5562	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	below 0.5 µg/l 21 Dec 2023
2-Methylpropan-1-ol :- {Iso-Butanol} 4884	Surface drainage	4	Dec 2023 – Dec 2023	below 500 µg/l 19 Dec 2023
2-Methylpropan-1-ol :- {Iso-Butanol} 4884	Storm sewer overflow discharge	3	Dec 2023 – Dec 2023	below 500 µg/l 19 Dec 2023
2-Propanol :- {iso-Propanol} 4890	Surface drainage	4	Dec 2023 – Dec 2023	below 500 µg/l 19 Dec 2023
2-Propanol :- {iso-Propanol} 4890	Storm sewer overflow discharge	3	Dec 2023 – Dec 2023	below 500 µg/l 19 Dec 2023
3,4-Dimethylphenol :- {3,4-Xylenol} 6577	Surface drainage	4	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
3,4-Dimethylphenol :- {3,4-Xylenol} 6577	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	below 0.2 µg/l 21 Dec 2023
3,5-Dimethylphenol :- {3,5-Xylenol} 5558	Surface drainage	4	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
3,5-Dimethylphenol :- {3,5-Xylenol} 5558	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	below 0.2 µg/l 21 Dec 2023
3-Chlorophenol 9703	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	below 0.2 µg/l 21 Dec 2023
3-Methylphenol :- {m-Cresol} 5561	Surface drainage	4	Dec 2023 – Dec 2023	18 µg/l 19 Dec 2023
3-Methylphenol :- {m-Cresol} 5561	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	below 0.2 µg/l 21 Dec 2023
4-Chloro-2-methylphenol :- {p-Chloro-o-cresol} 3341	Surface drainage	4	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
4-Chloro-2-methylphenol :- {p-Chloro-o-cresol} 3341	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	below 0.2 µg/l 21 Dec 2023
4-Chloro-3,5-dimethylphenol :- {PCMX} 6584	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	below 0.2 µg/l 21 Dec 2023
4-Chloro-3-methylphenol :- {p-Chloro-m-cresol} 3342	Surface drainage	4	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
4-Chloro-3-methylphenol :- {p-Chloro-m-cresol} 3342	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	below 0.2 µg/l 21 Dec 2023
4-Chlorophenol 9815	Storm sewer overflow discharge	2	Dec 2023 – Dec 2023	below 0.2 µg/l 21 Dec 2023
4-Methylphenol :- {p-Cresol} 5560	Surface drainage	4	Dec 2023 – Dec 2023	32 µg/l 19 Dec 2023
4-Methylphenol :- {p-Cresol} 5560	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	below 0.2 µg/l 21 Dec 2023
Acenaphthene 7395	Storm sewer overflow discharge	4	Dec 2023 – Dec 2023	below 0.02 µg/l 21 Dec 2023
Acenaphthene 7395	Surface drainage	3	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
Acenaphthylene 8311	Storm sewer overflow discharge	4	Dec 2023 – Dec 2023	below 0.02 µg/l 21 Dec 2023
Acenaphthylene 8311	Surface drainage	3	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
Acetone :- {Propanone} 9097	Surface drainage	4	Dec 2023 – Dec 2023	below 500 µg/l 19 Dec 2023
Acetone :- {Propanone} 9097	Storm sewer overflow discharge	3	Dec 2023 – Dec 2023	below 2000 µg/l 19 Dec 2023
Acetonitrile :- {Methyl Cyanide} 6594	Surface drainage	4	Dec 2023 – Dec 2023	below 4000 µg/l 19 Dec 2023
Acetonitrile :- {Methyl Cyanide} 6594	Storm sewer overflow discharge	3	Dec 2023 – Dec 2023	below 500 µg/l 19 Dec 2023
Acrylonitrile 7171	Surface drainage	4	Dec 2023 – Dec 2023	below 500 µg/l 19 Dec 2023
Acrylonitrile 7171	Storm sewer overflow discharge	3	Dec 2023 – Dec 2023	below 500 µg/l 19 Dec 2023
Aluminium 6057	Storm sewer overflow discharge	2	Dec 2023 – Dec 2023	1500 µg/l 19 Dec 2023
Aluminium 6057	Surface drainage	3	Dec 2023 – Dec 2023	1000 µg/l 19 Dec 2023
Ammonia un-ionised as N 0119	Surface drainage	3	Dec 2023 – Dec 2023	0.0453 mg/l 19 Dec 2023
Ammonia un-ionised as N 0119	Storm sewer overflow discharge	3	Dec 2023 – Dec 2023	below 0.00026 mg/l 21 Dec 2023
Anthracene 6753	Storm sewer overflow discharge	4	Dec 2023 – Dec 2023	below 0.02 µg/l 21 Dec 2023
Anthracene 6753	Surface drainage	3	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
Benzo(a)Anthracene 0772	Storm sewer overflow discharge	4	Dec 2023 – Dec 2023	below 0.02 µg/l 21 Dec 2023
Benzo(a)Anthracene 0772	Surface drainage	3	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
Benzo(a)Pyrene 6399	Storm sewer overflow discharge	4	Dec 2023 – Dec 2023	below 0.02 µg/l 21 Dec 2023
Benzo(a)Pyrene 6399	Surface drainage	3	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
Benzo(b)Fluoranthene 0731	Storm sewer overflow discharge	4	Dec 2023 – Dec 2023	below 0.02 µg/l 21 Dec 2023
Benzo(b)Fluoranthene 0731	Surface drainage	3	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
Benzo(e)Pyrene 8940	Storm sewer overflow discharge	4	Dec 2023 – Dec 2023	below 0.02 µg/l 21 Dec 2023
Benzo(e)Pyrene 8940	Surface drainage	3	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
Benzo(g,h,i)Perylene 0714	Storm sewer overflow discharge	4	Dec 2023 – Dec 2023	below 0.02 µg/l 21 Dec 2023
Benzo(g,h,i)Perylene 0714	Surface drainage	3	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
Benzo(k)Fluoranthene 0733	Storm sewer overflow discharge	4	Dec 2023 – Dec 2023	below 0.02 µg/l 21 Dec 2023
Benzo(k)Fluoranthene 0733	Surface drainage	3	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
Bifenthrin 8896	Surface drainage	4	Dec 2023 – Dec 2023	below 0.1 µg/l 19 Dec 2023
BOD : 5 Day ATU 0085	Surface drainage	4	Dec 2023 – Dec 2023	160 mg/l 19 Dec 2023
BOD : 5 Day ATU 0085	Storm sewer overflow discharge	4	Dec 2023 – Dec 2023	below 3 mg/l 21 Dec 2023
BOD : 5 Day ATU 0085	Final sewage effluent	1	Aug 2026 – Aug 2026	below 6 mg/l 26 Aug 2026
Cadmium 0108	Storm sewer overflow discharge	2	Dec 2023 – Dec 2023	0.41 µg/l 19 Dec 2023
Cadmium 0108	Surface drainage	3	Dec 2023 – Dec 2023	0.72 µg/l 19 Dec 2023
Chemical Oxygen Demand :- {COD} 0092	Storm sewer overflow discharge	3	Dec 2023 – Dec 2023	18 mg/l 21 Dec 2023
Chemical Oxygen Demand :- {COD} 0092	Surface drainage	2	Dec 2023 – Dec 2023	620 mg/l 19 Dec 2023
Chloride 0172	Surface drainage	4	Dec 2023 – Dec 2023	300 mg/l 19 Dec 2023
Chloride 0172	Storm sewer overflow discharge	4	Dec 2023 – Dec 2023	24 mg/l 21 Dec 2023
Chloride 0172	Final sewage effluent	1	Aug 2026 – Aug 2026	55 mg/l 26 Aug 2026
Chromium 3164	Storm sewer overflow discharge	2	Dec 2023 – Dec 2023	9.8 µg/l 19 Dec 2023
Chromium 3164	Surface drainage	3	Dec 2023 – Dec 2023	11 µg/l 19 Dec 2023
Chrysene 8310	Storm sewer overflow discharge	4	Dec 2023 – Dec 2023	below 0.02 µg/l 21 Dec 2023
Chrysene 8310	Surface drainage	3	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
cis-Permethrin 9341	Surface drainage	4	Dec 2023 – Dec 2023	below 0.2 µg/l 19 Dec 2023
cis-Permethrin 9341	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	below 0.5 µg/l 21 Dec 2023
Copper 6452	Storm sewer overflow discharge	2	Dec 2023 – Dec 2023	41 µg/l 19 Dec 2023
Copper 6452	Surface drainage	3	Dec 2023 – Dec 2023	74 µg/l 19 Dec 2023
Cyclohexanone 4886	Surface drainage	4	Dec 2023 – Dec 2023	below 500 µg/l 19 Dec 2023
Cyclohexanone 4886	Storm sewer overflow discharge	3	Dec 2023 – Dec 2023	below 500 µg/l 19 Dec 2023
Cyfluthrin 1120	Surface drainage	4	Dec 2023 – Dec 2023	below 0.3 µg/l 19 Dec 2023
Cyfluthrin 1120	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	below 0.5 µg/l 21 Dec 2023
Cypermethrin 0073	Surface drainage	4	Dec 2023 – Dec 2023	below 0.2 µg/l 19 Dec 2023
Cypermethrin 0073	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	below 0.5 µg/l 21 Dec 2023
Cypermethrin Identification 5446	Surface drainage	4	Dec 2023 – Dec 2023	1 text result 19 Dec 2023
Cypermethrin Identification 5446	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	1 text result 21 Dec 2023
Deltamethrin 7562	Surface drainage	4	Dec 2023 – Dec 2023	below 0.2 µg/l 19 Dec 2023
Deltamethrin 7562	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	below 0.5 µg/l 21 Dec 2023
Detergents, Anionic 0461	Surface drainage	4	Dec 2023 – Dec 2023	0.2 mg/l 19 Dec 2023
Detergents, Anionic 0461	Storm sewer overflow discharge	4	Dec 2023 – Dec 2023	below 0.1 mg/l 21 Dec 2023
Detergents, Cationic as Benzalkonium Chloride 3454	Surface drainage	1	Dec 2023 – Dec 2023	below 0.5 mg/l 13 Dec 2023
Detergents, Cationic as Benzalkonium Chloride 3454	Storm sewer overflow discharge	2	Dec 2023 – Dec 2023	below 0.5 mg/l 21 Dec 2023
Detergents, Non-ionic 0463	Surface drainage	4	Dec 2023 – Dec 2023	below 0.01 mg/l 19 Dec 2023
Detergents, Non-ionic 0463	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	below 0.01 mg/l 21 Dec 2023
Dibenzo(a,h)Anthracene 8360	Storm sewer overflow discharge	4	Dec 2023 – Dec 2023	below 0.02 µg/l 21 Dec 2023
Dibenzo(a,h)Anthracene 8360	Surface drainage	3	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
Dimethoxymethane :- {Dimethoxylmethane} 5569	Surface drainage	4	Dec 2023 – Dec 2023	below 500 µg/l 19 Dec 2023
Dimethoxymethane :- {Dimethoxylmethane} 5569	Storm sewer overflow discharge	3	Dec 2023 – Dec 2023	below 500 µg/l 19 Dec 2023
Ethanol 4885	Surface drainage	4	Dec 2023 – Dec 2023	below 700 µg/l 19 Dec 2023
Ethanol 4885	Storm sewer overflow discharge	3	Dec 2023 – Dec 2023	below 2000 µg/l 19 Dec 2023
Ethyl acetate :- {Ethyl Ethanoate} 9891	Surface drainage	4	Dec 2023 – Dec 2023	below 500 µg/l 19 Dec 2023
Ethyl acetate :- {Ethyl Ethanoate} 9891	Storm sewer overflow discharge	3	Dec 2023 – Dec 2023	below 500 µg/l 19 Dec 2023
Fluoranthene 0736	Storm sewer overflow discharge	4	Dec 2023 – Dec 2023	below 0.02 µg/l 21 Dec 2023
Fluoranthene 0736	Surface drainage	3	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
Fluorene 7864	Storm sewer overflow discharge	4	Dec 2023 – Dec 2023	below 0.02 µg/l 21 Dec 2023
Fluorene 7864	Surface drainage	3	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
GCMS Screen : Semi-Volatile Screen: Semi Quantitative 3106	Surface drainage	4	Dec 2023 – Dec 2023	1 unitless value 19 Dec 2023
GCMS Screen : Semi-Volatile Screen: Semi Quantitative 3106	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	1 unitless value 21 Dec 2023
GCMS Screen : Volatile Screen : Semi Quantitative 4084	Storm sewer overflow discharge	2	Dec 2023 – Dec 2023	1 unitless value 21 Dec 2023
Hydrocarbon Oils 1066	Storm sewer overflow discharge	2	Dec 2023 – Dec 2023	6.6 mg/l 19 Dec 2023
Hydrocarbon Oils 1066	Surface drainage	3	Dec 2023 – Dec 2023	510 mg/l 19 Dec 2023
ICP-MS : Metals screen : Semi-quantitative 3401	Surface drainage	1	Dec 2023 – Dec 2023	1 unitless value 13 Dec 2023
ICP-MS : Metals screen : Semi-quantitative 3401	Storm sewer overflow discharge	3	Dec 2023 – Dec 2023	1 unitless value 21 Dec 2023
Indeno(1,2,3-cd)pyrene 0746	Storm sewer overflow discharge	4	Dec 2023 – Dec 2023	below 0.02 µg/l 21 Dec 2023
Indeno(1,2,3-cd)pyrene 0746	Surface drainage	3	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
Isopropyl ether :- {Diisopropyl ether} 3941	Surface drainage	4	Dec 2023 – Dec 2023	below 0.5 mg/l 19 Dec 2023
Isopropyl ether :- {Diisopropyl ether} 3941	Storm sewer overflow discharge	3	Dec 2023 – Dec 2023	below 0.5 mg/l 19 Dec 2023
Lambda-cyhalothrin 9472	Surface drainage	4	Dec 2023 – Dec 2023	below 0.2 µg/l 19 Dec 2023
Lambda-cyhalothrin 9472	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	below 0.5 µg/l 21 Dec 2023
Lead 0050	Storm sewer overflow discharge	2	Dec 2023 – Dec 2023	19 µg/l 19 Dec 2023
Lead 0050	Surface drainage	3	Dec 2023 – Dec 2023	46 µg/l 19 Dec 2023
Methyl-Ethyl-Ketone :- {Butanone} 7101	Surface drainage	4	Dec 2023 – Dec 2023	below 500 µg/l 19 Dec 2023
Methyl-Ethyl-Ketone :- {Butanone} 7101	Storm sewer overflow discharge	3	Dec 2023 – Dec 2023	below 500 µg/l 19 Dec 2023
Methyl-iso-Butyl-Ketone :- {4-Methylpentan-2-one} 9340	Surface drainage	4	Dec 2023 – Dec 2023	below 500 µg/l 19 Dec 2023
Methyl-iso-Butyl-Ketone :- {4-Methylpentan-2-one} 9340	Storm sewer overflow discharge	3	Dec 2023 – Dec 2023	below 500 µg/l 19 Dec 2023
Naphthalene 9669	Storm sewer overflow discharge	4	Dec 2023 – Dec 2023	below 0.02 µg/l 21 Dec 2023
Naphthalene 9669	Surface drainage	3	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
National Grid Reference : Whole : Field report 7434	Surface drainage	8	Dec 2023 – Dec 2023	1 unitless value 19 Dec 2023
National Grid Reference : Whole : Field report 7434	Storm sewer overflow discharge	12	Dec 2023 – Dec 2023	1 unitless value 21 Dec 2023
National Grid Reference : Whole : Field report 7434	Final sewage effluent	1	Aug 2026 – Aug 2026	1 unitless value 26 Aug 2026
Nickel 6462	Storm sewer overflow discharge	2	Dec 2023 – Dec 2023	21 µg/l 19 Dec 2023
Nickel 6462	Surface drainage	3	Dec 2023 – Dec 2023	21 µg/l 19 Dec 2023
Nitrogen, Total Oxidised as N 0116	Surface drainage	4	Dec 2023 – Dec 2023	below 0.2 mg/l 19 Dec 2023
Nitrogen, Total Oxidised as N 0116	Storm sewer overflow discharge	4	Dec 2023 – Dec 2023	2.3 mg/l 21 Dec 2023
Nitrogen, Total Oxidised as N 0116	Final sewage effluent	1	Aug 2026 – Aug 2026	37 mg/l 26 Aug 2026
Oil Type : Qualitative 3372	Storm sewer overflow discharge	2	Dec 2023 – Dec 2023	1 unitless value 21 Dec 2023
Oils, Grease and Fats 0666	Storm sewer overflow discharge	2	Dec 2023 – Dec 2023	below 1 mg/l 21 Dec 2023
Pentachlorophenol 1085	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	below 0.2 µg/l 21 Dec 2023
Perylene 9003	Storm sewer overflow discharge	4	Dec 2023 – Dec 2023	below 0.02 µg/l 21 Dec 2023
Perylene 9003	Surface drainage	3	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
Phenanthrene 9671	Storm sewer overflow discharge	4	Dec 2023 – Dec 2023	below 0.02 µg/l 21 Dec 2023
Phenanthrene 9671	Surface drainage	3	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
Phenol 9522	Surface drainage	4	Dec 2023 – Dec 2023	250 µg/l 19 Dec 2023
Phenol 9522	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	below 0.5 µg/l 21 Dec 2023
Phenols : Total (Seven compounds) : SWAD 6940	Storm sewer overflow discharge	3	Dec 2023 – Dec 2023	2.11 µg/l 19 Dec 2023
Pyrene 7325	Storm sewer overflow discharge	4	Dec 2023 – Dec 2023	below 0.02 µg/l 21 Dec 2023
Pyrene 7325	Surface drainage	3	Dec 2023 – Dec 2023	below 10 µg/l 19 Dec 2023
Pyridine 6685	Surface drainage	4	Dec 2023 – Dec 2023	below 2000 µg/l 19 Dec 2023
Pyridine 6685	Storm sewer overflow discharge	3	Dec 2023 – Dec 2023	below 5000 µg/l 19 Dec 2023
Salinity : In Situ 7608	Surface drainage	6	Dec 2023 – Dec 2023	1.08 parts per thousand 19 Dec 2023
Salinity : In Situ 7608	Storm sewer overflow discharge	10	Dec 2023 – Dec 2023	0.26 parts per thousand 21 Dec 2023
Solids, Suspended at 105 C 0135	Surface drainage	4	Dec 2023 – Dec 2023	500 mg/l 19 Dec 2023
Solids, Suspended at 105 C 0135	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	5.4 mg/l 21 Dec 2023
Solids, Suspended at 105 C 0135	Final sewage effluent	1	Aug 2026 – Aug 2026	30 mg/l 26 Aug 2026
Tetrahydrofuran :- {THF} 7518	Surface drainage	4	Dec 2023 – Dec 2023	below 500 µg/l 19 Dec 2023
Tetrahydrofuran :- {THF} 7518	Storm sewer overflow discharge	3	Dec 2023 – Dec 2023	below 500 µg/l 19 Dec 2023
trans-Permethrin 9342	Surface drainage	4	Dec 2023 – Dec 2023	below 0.1 µg/l 19 Dec 2023
trans-Permethrin 9342	Storm sewer overflow discharge	5	Dec 2023 – Dec 2023	below 0.5 µg/l 21 Dec 2023
Visible oil or grease, significant trace: Present/Not found (1/0) 0664	Surface drainage	3	Dec 2023 – Dec 2023	Present 15 Dec 2023
Visible oil or grease, significant trace: Present/Not found (1/0) 0664	Storm sewer overflow discharge	2	Dec 2023 – Dec 2023	Present 13 Dec 2023
Zinc 6455	Storm sewer overflow discharge	2	Dec 2023 – Dec 2023	200 µg/l 19 Dec 2023
Zinc 6455	Surface drainage	3	Dec 2023 – Dec 2023	360 µg/l 19 Dec 2023

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.