Weir Wood Reservoir Raw Water
EA name: WEIR WOOD RESERVOIR RAW WATER
Environment Agency sampling point SO-E0000421 · 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
- 10 Jul 2026, 09:273 months ago · time as the Environment Agency records it (UK clock time; the source gives no time zone)
- Samples banked
- 34 since 26 Oct 2023 Imported periods: 1 Oct 2023 – 30 Sep 2026. Samples outside them are not shown here.
- Latest sample
- Pond / lake / reservoir water Environmental monitoring statutory (EU directives)
- Where
- National Grid 540724, 135119As 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 64 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
- Environmental monitoring statutory (EU directives) (22 samples)
Monitoring (national agency policy) (12 samples)
Everything measured here
266 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 266 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | Pond / lake / reservoir water | 4 | Apr 2026 – Jul 2026 | 125.7% 10 Jul 2026 |
| pH 0061 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | 9.06 10 Jul 2026 |
| Conductivity at 25 C 0077 | Pond / lake / reservoir water | 22 | Oct 2023 – Jul 2026 | 235 µS/cm 10 Jul 2026 |
| 1,1,1,2-Tetrachloroethane 6534 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| 1,1,1-Trichloroethane 3268 | Pond / lake / reservoir water | 27 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| 1,1,2,2-Tetrachloroethane 7531 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| 1,1,2-Trichloroethane 9811 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| 1,1-Dichloroethane 3269 | Pond / lake / reservoir water | 27 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| 1,1-Dichloroethylene :- {1,1-Dichloroethene} 9836 | Pond / lake / reservoir water | 27 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| 1,1-Dichloropropylene :- {1,1-Dichloropropene} 9684 | Pond / lake / reservoir water | 27 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| 1,2,3-Trichlorobenzene 9050 | Pond / lake / reservoir water | 23 | Dec 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| 1,2,3-Trichloropropane 6541 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| 1,2,3-Trimethylbenzene 9457 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| 1,2,4-Trichlorobenzene 9051 | Pond / lake / reservoir water | 25 | Dec 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| 1,2,4-Trimethylbenzene 9456 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| 1,2-Dibromo-3-chloropropane 6537 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| 1,2-Dibromoethane 9145 | Pond / lake / reservoir water | 27 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| 1,2-Dichlorobenzene 9618 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| 1,2-Dichloroethane 3272 | Pond / lake / reservoir water | 27 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| 1,2-Dichloropropane 6540 | Pond / lake / reservoir water | 27 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| 1,2-Dimethylbenzene :- {o-Xylene} 9845 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| 1,3,5-Trichlorobenzene 9052 | Pond / lake / reservoir water | 23 | Dec 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| 1,3,5-Trimethylbenzene :- {Mesitylene} 9458 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| 1,3-Dichlorobenzene 9619 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| 1,3-Dichloropropane 6542 | Pond / lake / reservoir water | 27 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| 1,4-Dichlorobenzene 4049 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| 2,2,3,4,4,5,6-Heptabromodiphenyl ether :- {PBDE 183} 9005 | Pond / lake / reservoir water | 28 | Apr 2024 – Jul 2026 | below 0.00006 µg/l 10 Jul 2026 |
| 2,2,3,4,4,5-Hexabromodiphenyl ether :- {PBDE 138} 9007 | Pond / lake / reservoir water | 28 | Apr 2024 – Jul 2026 | below 0.00009 µg/l 10 Jul 2026 |
| 2,2,3,4,4-Pentabromodiphenyl ether :- {PBDE 85} 9009 | Pond / lake / reservoir water | 28 | Apr 2024 – Jul 2026 | below 0.00006 µg/l 10 Jul 2026 |
| 2,2,4,4,5,5-Hexabromodiphenyl ether :- {PBDE 153} 9011 | Pond / lake / reservoir water | 28 | Apr 2024 – Jul 2026 | below 0.00006 µg/l 10 Jul 2026 |
| 2,2,4,4,5,6-Hexabromodiphenyl ether :- {PBDE 154} 9013 | Pond / lake / reservoir water | 28 | Apr 2024 – Jul 2026 | below 0.00006 µg/l 10 Jul 2026 |
| 2,2,4,4,5-Pentabromodiphenyl ether :- {PBDE 99} 9015 | Pond / lake / reservoir water | 28 | Apr 2024 – Jul 2026 | below 0.00006 µg/l 10 Jul 2026 |
| 2,2,4,4,6-Pentabromodiphenyl ether :- {PBDE 100} 9017 | Pond / lake / reservoir water | 28 | Apr 2024 – Jul 2026 | below 0.00006 µg/l 10 Jul 2026 |
| 2,2,4,4-Tetrabromodiphenyl ether :- {PBDE 47} 9019 | Pond / lake / reservoir water | 28 | Apr 2024 – Jul 2026 | below 0.00006 µg/l 10 Jul 2026 |
| 2,2-Dichloropropane 6744 | Pond / lake / reservoir water | 27 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| 2,3,4,4-Tetrabromodiphenyl ether :- {PBDE 66} 9021 | Pond / lake / reservoir water | 28 | Apr 2024 – Jul 2026 | below 0.00007 µg/l 10 Jul 2026 |
| 2,3,6-TBA :- {2,3,6-Trichlorobenzoic acid} 7726 | Pond / lake / reservoir water | 12 | Oct 2023 – Jul 2026 | below 0.02 µg/l 10 Jul 2026 |
| 2,3-Dichlorophenol 9453 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.02 µg/l 10 Jul 2026 |
| 2,3-Dimethylphenol :- {2,3-Xylenol} 9451 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.02 µg/l 10 Jul 2026 |
| 2,4,4-TriBromoDiphenylEther 4621 | Pond / lake / reservoir water | 28 | Apr 2024 – Jul 2026 | below 0.00006 µg/l 10 Jul 2026 |
| 2,4,5-T :- {2,4,5-Trichlorophenoxyacetic acid} 3546 | Pond / lake / reservoir water | 11 | Oct 2023 – Jul 2026 | below 0.005 µg/l 10 Jul 2026 |
| 2,4,5-Trichlorophenol 9818 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.02 µg/l 10 Jul 2026 |
| 2,4,6-Trichlorophenol 9819 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.02 µg/l 10 Jul 2026 |
| 2,4-D :- {2,4-Dichlorophenoxyacetic acid} 3545 | Pond / lake / reservoir water | 12 | Oct 2023 – Jul 2026 | below 0.005 µg/l 10 Jul 2026 |
| 2,4-DB :- {4-(2,4-dichlorophenoxy)butyric acid} 3791 | Pond / lake / reservoir water | 12 | Oct 2023 – Jul 2026 | below 0.005 µg/l 10 Jul 2026 |
| 2,4-Dichlorophenol 9816 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.02 µg/l 10 Jul 2026 |
| 2,4-Dimethylphenol :- {2,4-Xylenol} 3343 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.02 µg/l 10 Jul 2026 |
| 2,5-Dichlorophenol 9091 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.02 µg/l 10 Jul 2026 |
| 2,5-Dimethylphenol :- {2,5-Xylenol} 9094 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.02 µg/l 10 Jul 2026 |
| 2,6-Dichlorophenol 9817 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.02 µg/l 10 Jul 2026 |
| 2,6-Dimethylphenol :- {2,6-Xylenol} 6569 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.02 µg/l 10 Jul 2026 |
| 2-Chlorophenol 9814 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.02 µg/l 10 Jul 2026 |
| 2-Chlorotoluene :- {1-Chloro-2-methylbenzene} 6547 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| 2-Ethyl phenol 9454 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.02 µg/l 10 Jul 2026 |
| 2-Methylphenol :- {o-Cresol} 5562 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.02 µg/l 10 Jul 2026 |
| 2-Phenoxypropionic acid :- {PPA} 6673 | Pond / lake / reservoir water | 12 | Oct 2023 – Jul 2026 | below 0.005 µg/l 10 Jul 2026 |
| 3,4-Dimethylphenol :- {3,4-Xylenol} 6577 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.02 µg/l 10 Jul 2026 |
| 3,5-Dimethylphenol :- {3,5-Xylenol} 5558 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | 0.021 µg/l 10 Jul 2026 |
| 3-Chlorophenol 9703 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.02 µg/l 10 Jul 2026 |
| 3-Chlorotoluene :- {3-Chloromethylbenzene} 5568 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| 3-Methylphenol :- {m-Cresol} 5561 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.02 µg/l 10 Jul 2026 |
| 4-Chloro-2-methylphenol :- {p-Chloro-o-cresol} 3341 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.02 µg/l 10 Jul 2026 |
| 4-Chloro-3,5-dimethylphenol :- {PCMX} 6584 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.02 µg/l 10 Jul 2026 |
| 4-Chloro-3-methylphenol :- {p-Chloro-m-cresol} 3342 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.02 µg/l 10 Jul 2026 |
| 4-Chlorophenol 9815 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.02 µg/l 10 Jul 2026 |
| 4-Chlorophenoxyacetic acid 3547 | Pond / lake / reservoir water | 12 | Oct 2023 – Jul 2026 | below 0.005 µg/l 10 Jul 2026 |
| 4-Chlorotoluene :- {1-Chloro-4-methylbenzene} 6578 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| 4-Isopropyltoluene :- {4-methyl-Isopropylbenzene} 6579 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| 4-Methylphenol :- {p-Cresol} 5560 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.02 µg/l 10 Jul 2026 |
| 4-Nonylphenol Branched 9190 | Pond / lake / reservoir water | 28 | Apr 2024 – Jul 2026 | below 0.04 µg/l 10 Jul 2026 |
| 4-Phenoxybutyric acid :- {PBA} 6672 | Pond / lake / reservoir water | 12 | Oct 2023 – Jul 2026 | below 0.005 µg/l 10 Jul 2026 |
| 4-tert-Octylphenol :- {p-tert-Octylphenol} 9267 | Pond / lake / reservoir water | 28 | Apr 2024 – Jul 2026 | below 0.01 µg/l 10 Jul 2026 |
| Acenaphthene 7395 | Pond / lake / reservoir water | 29 | Nov 2023 – Jun 2026 | below 0.01 µg/l 15 Jun 2026 |
| Acenaphthylene 8311 | Pond / lake / reservoir water | 30 | Nov 2023 – Jun 2026 | below 0.01 µg/l 15 Jun 2026 |
| Aclonifen 3478 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| Alachlor 7086 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| Aldicarb 9344 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.005 µg/l 10 Jul 2026 |
| Aldicarb sulfoxide 8806 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.005 µg/l 10 Jul 2026 |
| Aldoxycarb :- {Aldicarb Sulfone} 8807 | Pond / lake / reservoir water | 33 | Oct 2023 – Jul 2026 | below 0.005 µg/l 10 Jul 2026 |
| Aldrin 0483 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| Alkalinity to pH 4.5 as CaCO3 0162 | Pond / lake / reservoir water | 16 | Oct 2023 – Mar 2026 | 50 mg/l 25 Mar 2026 |
| Alkalinity, Dissolved as CaCO3 7867 | Pond / lake / reservoir water | 4 | Apr 2026 – Jul 2026 | 60 mg/l 10 Jul 2026 |
| Aluminium, Dissolved 6037 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 20 µg/l 10 Jul 2026 |
| Aminomethylphosphonic acid 7125 | Pond / lake / reservoir water | 10 | Apr 2024 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| Ammoniacal Nitrogen, Filtered as N 9993 | Pond / lake / reservoir water | 22 | Oct 2023 – Jul 2026 | 0.016 mg/l 10 Jul 2026 |
| Anthracene 6753 | Pond / lake / reservoir water | 30 | Nov 2023 – Jun 2026 | below 0.01 µg/l 15 Jun 2026 |
| Arsenic, Dissolved 6045 | Pond / lake / reservoir water | 12 | Oct 2023 – Jul 2026 | below 1 µg/l 10 Jul 2026 |
| Asulam 3004 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.02 µg/l 10 Jul 2026 |
| Atrazine 3002 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| Azoxystrobin 5050 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.02 µg/l 10 Jul 2026 |
| Barium, Dissolved 9446 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | 11 µg/l 10 Jul 2026 |
| Benazolin 3792 | Pond / lake / reservoir water | 12 | Oct 2023 – Jul 2026 | below 0.005 µg/l 10 Jul 2026 |
| Bentazone 4065 | Pond / lake / reservoir water | 12 | Oct 2023 – Jul 2026 | below 0.003 µg/l 10 Jul 2026 |
| Benzene 3781 | Pond / lake / reservoir water | 27 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| Benzo(a)Anthracene 0772 | Pond / lake / reservoir water | 28 | Nov 2023 – Jun 2026 | below 0.01 µg/l 15 Jun 2026 |
| Benzo(a)Pyrene 6399 | Pond / lake / reservoir water | 27 | Oct 2023 – Jun 2026 | 0.0026 µg/l 15 Jun 2026 |
| Benzo(b)Fluoranthene 0731 | Pond / lake / reservoir water | 28 | Nov 2023 – Jul 2026 | 0.00065 µg/l 10 Jul 2026 |
| Benzo(e)Pyrene 8940 | Pond / lake / reservoir water | 27 | Nov 2023 – Jun 2026 | below 0.01 µg/l 15 Jun 2026 |
| Benzo(g,h,i)Perylene 0714 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | 0.00069 µg/l 10 Jul 2026 |
| Benzo(k)Fluoranthene 0733 | Pond / lake / reservoir water | 30 | Oct 2023 – Jul 2026 | 0.00033 µg/l 10 Jul 2026 |
| Benzyl butyl phthalate 8162 | Pond / lake / reservoir water | 10 | Apr 2024 – Jul 2026 | below 2 µg/l 10 Jul 2026 |
| Bifenox 6603 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| Boron, Dissolved 9447 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 100 µg/l 10 Jul 2026 |
| Bromobenzene 6604 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| Bromochloromethane 6605 | Pond / lake / reservoir water | 27 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| Bromodichloromethane 3282 | Pond / lake / reservoir water | 27 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| Bromoform :- {Tribromomethane} 3283 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| Bromoxynil 6449 | Pond / lake / reservoir water | 10 | Oct 2023 – Jul 2026 | below 0.005 µg/l 10 Jul 2026 |
| Cadmium, Dissolved 0106 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.01 µg/l 10 Jul 2026 |
| Calcium, Dissolved 0239 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | 24 mg/l 10 Jul 2026 |
| Carbaryl 9343 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.01 µg/l 10 Jul 2026 |
| Carbendazim 3475 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.01 µg/l 10 Jul 2026 |
| Carbetamide 9073 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.01 µg/l 10 Jul 2026 |
| Carbofuran 3086 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.005 µg/l 10 Jul 2026 |
| Carbon Disulphide 8847 | Pond / lake / reservoir water | 27 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| Carbon tetrachloride :- {Tetrachloromethane} 1049 | Pond / lake / reservoir water | 27 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | Pond / lake / reservoir water | 32 | Oct 2023 – Jul 2026 | 5 mg/l 10 Jul 2026 |
| Chlorfenvinphos 0503 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| Chloridazon 6760 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.01 µg/l 10 Jul 2026 |
| Chlorobenzene 3290 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| Chlorodibromomethane 3292 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| Chloroform :- {Trichloromethane} 3373 | Pond / lake / reservoir water | 27 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| Chloromethane :- {Methyl Chloride} 6376 | Pond / lake / reservoir water | 27 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| Chlorophyll : Acetone Extract 7887 | Pond / lake / reservoir water | 17 | Oct 2023 – Jul 2026 | 24 µg/l 10 Jul 2026 |
| Chlorothalonil 6615 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.0005 µg/l 10 Jul 2026 |
| Chlorotoluron 9348 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.01 µg/l 10 Jul 2026 |
| Chloroxuron 3399 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.01 µg/l 10 Jul 2026 |
| Chlorpyrifos-ethyl 9978 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| Chromium Hexavalent, Dissolved :- {Cr VI} 6619 | Pond / lake / reservoir water | 11 | Oct 2023 – Jul 2026 | 0.057 µg/l 10 Jul 2026 |
| Chromium, Dissolved 3409 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.5 µg/l 10 Jul 2026 |
| Chrysene 8310 | Pond / lake / reservoir water | 29 | Nov 2023 – Jun 2026 | below 0.01 µg/l 15 Jun 2026 |
| cis-1,2-Dichloroethylene :- {cis-1,2-Dichloroethene} 6538 | Pond / lake / reservoir water | 27 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| cis-1,3-Dichloropropylene :- {cis-1,3-Dichloropropene} 6543 | Pond / lake / reservoir water | 27 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| cis-Heptachlor epoxide 8864 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.00004 µg/l 10 Jul 2026 |
| cis-Permethrin 9341 | Pond / lake / reservoir water | 23 | Oct 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| Clopyralid 6620 | Pond / lake / reservoir water | 12 | Oct 2023 – Jul 2026 | below 0.005 µg/l 10 Jul 2026 |
| Copper : BLM Bioavailable 4821 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | 0.16 µg/l 10 Jul 2026 |
| Copper, Dissolved 6450 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | 1.4 µg/l 10 Jul 2026 |
| Cyanide : Free as CN 0174 | Pond / lake / reservoir water | 11 | Oct 2023 – Jul 2026 | below 0.005 mg/l 10 Jul 2026 |
| Cypermethrin 0073 | Pond / lake / reservoir water | 21 | Nov 2023 – Jul 2026 | below 0.00001 µg/l 10 Jul 2026 |
| Cypermethrin Identification 5446 | Pond / lake / reservoir water | 21 | Nov 2023 – Jul 2026 | 1 text result 10 Jul 2026 |
| DDE -pp 0551 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| DDT -op 0539 | Pond / lake / reservoir water | 22 | Jan 2024 – Jun 2026 | below 0.0001 µg/l 15 Jun 2026 |
| DDT -pp 0555 | Pond / lake / reservoir water | 23 | Jan 2024 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| DDT : Sum of components 0575 | Pond / lake / reservoir water | 22 | Jan 2024 – Jun 2026 | below 0.0004 µg/l 15 Jun 2026 |
| Di(2-ethylhexyl) phthalate :- {DEHP} 6724 | Pond / lake / reservoir water | 28 | Apr 2024 – Jul 2026 | below 0.2 µg/l 10 Jul 2026 |
| Diazinon 0723 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| Dibenzo(a,h)Anthracene 8360 | Pond / lake / reservoir water | 30 | Nov 2023 – Jun 2026 | below 0.01 µg/l 15 Jun 2026 |
| Dibromomethane 3783 | Pond / lake / reservoir water | 27 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| Dicamba 3550 | Pond / lake / reservoir water | 12 | Oct 2023 – Jul 2026 | below 0.01 µg/l 10 Jul 2026 |
| Dichlorobenzophenone 3472 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| Dichloromethane :- {Methylene Dichloride} 3299 | Pond / lake / reservoir water | 25 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| Dichlorprop :- {2,4-DP} 3551 | Pond / lake / reservoir water | 11 | Oct 2023 – Jul 2026 | below 0.005 µg/l 10 Jul 2026 |
| Dichlorvos 0507 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.00004 µg/l 10 Jul 2026 |
| Dieldrin 0511 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| Diflurobenzuron 9345 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.01 µg/l 10 Jul 2026 |
| Dimethoate 6447 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| Dimethylbenzene : Sum of isomers (1,3- 1,4-) 6716 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.2 µg/l 10 Jul 2026 |
| Diuron 3811 | Pond / lake / reservoir water | 33 | Oct 2023 – Jul 2026 | below 0.01 µg/l 10 Jul 2026 |
| Endosulfan : Total (A + B) 1109 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.0002 µg/l 10 Jul 2026 |
| Endosulfan A 0569 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| Endosulfan B 0570 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| Endrin 0562 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| Ethiofencarb 6955 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.005 µg/l 10 Jul 2026 |
| Ethirimol 5047 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.05 µg/l 10 Jul 2026 |
| Ethyl tert-butyl ether :- {ETBE} 9844 | Pond / lake / reservoir water | 27 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| Ethylbenzene 4117 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| Fenitrothion 9716 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| Fenoprop 3552 | Pond / lake / reservoir water | 12 | Oct 2023 – Jul 2026 | below 0.005 µg/l 10 Jul 2026 |
| Fenuron 9339 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.01 µg/l 10 Jul 2026 |
| Fluoranthene 0736 | Pond / lake / reservoir water | 29 | Oct 2023 – Jul 2026 | 0.0019 µg/l 10 Jul 2026 |
| Fluorene 7864 | Pond / lake / reservoir water | 29 | Nov 2023 – Jun 2026 | below 0.01 µg/l 15 Jun 2026 |
| Fluroxypyr 4064 | Pond / lake / reservoir water | 12 | Oct 2023 – Jul 2026 | below 0.005 µg/l 10 Jul 2026 |
| GCMS Screen : Target Based multi-residue screening : Semi Quantitative 4994 | Pond / lake / reservoir water | 10 | Oct 2025 – Jul 2026 | 1 text result 10 Jul 2026 |
| Glyphosate 3007 | Pond / lake / reservoir water | 10 | Apr 2024 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| HCH -alpha 0487 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| HCH -beta 0491 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| HCH -delta 0495 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| HCH -gamma :- {Lindane} 0499 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | 0.0001 µg/l 10 Jul 2026 |
| Heptachlor 0527 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.00004 µg/l 10 Jul 2026 |
| Hexabromocyclododecane Total: (Sum of a, b, g) 9248 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.0002 µg/l 10 Jul 2026 |
| Hexachlorobenzene 0576 | Pond / lake / reservoir water | 23 | Dec 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| Hexachlorobutadiene 6648 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| Hexachloroethane 5234 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| Imazapyr 7025 | Pond / lake / reservoir water | 12 | Oct 2023 – Jul 2026 | below 0.005 µg/l 10 Jul 2026 |
| Indeno(1,2,3-cd)pyrene 0746 | Pond / lake / reservoir water | 28 | Nov 2023 – Jul 2026 | 0.00075 µg/l 10 Jul 2026 |
| Ioxynil 9068 | Pond / lake / reservoir water | 11 | Oct 2023 – Jul 2026 | below 0.005 µg/l 10 Jul 2026 |
| Irgarol 1051 8999 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| Iron, Dissolved 6460 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 30 µg/l 10 Jul 2026 |
| Isodrin 9494 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| Isopropylbenzene :- {Methylethylbenzene} 7574 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| Isoproturon 3117 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.01 µg/l 10 Jul 2026 |
| Lead : BLM Bioavailable 3377 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | 0.01 µg/l 10 Jul 2026 |
| Lead, Dissolved 0052 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| Linuron 3118 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.01 µg/l 10 Jul 2026 |
| Lithium, Dissolved 4201 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 100 µg/l 10 Jul 2026 |
| Magnesium, Dissolved 0235 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | 3.2 mg/l 10 Jul 2026 |
| Malathion 0535 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| Manganese : BLM Bioavailable 4820 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | 5 µg/l 10 Jul 2026 |
| Manganese, Dissolved 6458 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 10 µg/l 10 Jul 2026 |
| MCPA :- {4-Chloro-2-methylphenoxyacetic acid} 3548 | Pond / lake / reservoir water | 12 | Oct 2023 – Jul 2026 | below 0.005 µg/l 10 Jul 2026 |
| MCPB :- {4-Chloro-2-methylphenoxybutyric acid} 3790 | Pond / lake / reservoir water | 12 | Oct 2023 – Jul 2026 | below 0.005 µg/l 10 Jul 2026 |
| Mecoprop 3549 | Pond / lake / reservoir water | 11 | Oct 2023 – Jul 2026 | below 0.005 µg/l 10 Jul 2026 |
| Mercury, Dissolved 0103 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.01 µg/l 10 Jul 2026 |
| Methabenzthiazuron 7053 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.01 µg/l 10 Jul 2026 |
| Methiocarb 6971 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.001 µg/l 10 Jul 2026 |
| Methomyl 6972 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.005 µg/l 10 Jul 2026 |
| Metoxuron 3130 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.01 µg/l 10 Jul 2026 |
| Metsulfuron-methyl 9861 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.01 µg/l 10 Jul 2026 |
| Monolinuron 3925 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.01 µg/l 10 Jul 2026 |
| Monuron 3400 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.01 µg/l 10 Jul 2026 |
| MTBE :- {Methyl tert-butyl ether} 6656 | Pond / lake / reservoir water | 26 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| n-ButylBenzene :- {1-Phenylbutane} 6658 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| n-Propylbenzene :- {1-Phenylpropane} 6659 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| Naphthalene 9669 | Pond / lake / reservoir water | 27 | Nov 2023 – Jun 2026 | below 0.01 µg/l 15 Jun 2026 |
| Neburon 9756 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.01 µg/l 10 Jul 2026 |
| Nickel : BLM Bioavailable 3878 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | 1.1 µg/l 10 Jul 2026 |
| Nickel, Dissolved 3410 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | 1.1 µg/l 10 Jul 2026 |
| Nitrite, Filtered as N 6485 | Pond / lake / reservoir water | 4 | Apr 2026 – Jul 2026 | 0.023 mg/l 10 Jul 2026 |
| Nitrogen, Total as N 9686 | Pond / lake / reservoir water | 20 | Oct 2023 – Jul 2026 | 0.66 mg/l 10 Jul 2026 |
| Nitrogen, Total Oxidised, Filtered as N 9943 | Pond / lake / reservoir water | 18 | Oct 2023 – Mar 2026 | 1.1 mg/l 25 Mar 2026 |
| Orthophosphate, Filtered as P 9856 | Pond / lake / reservoir water | 22 | Oct 2023 – Jul 2026 | 0.0011 mg/l 10 Jul 2026 |
| Oxamyl 6980 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.005 µg/l 10 Jul 2026 |
| Pendimethalin 9892 | Pond / lake / reservoir water | 23 | Dec 2023 – Jul 2026 | below 0.0005 µg/l 10 Jul 2026 |
| Pentachlorobenzene 5863 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| Pentachlorophenol 1085 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.02 µg/l 10 Jul 2026 |
| Perfluorooctanoate anion 9274 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | 0.0011 µg/l 10 Jul 2026 |
| Perfluorooctylsulphonate anion 9276 | Pond / lake / reservoir water | 32 | Oct 2023 – Jul 2026 | 0.001 µg/l 10 Jul 2026 |
| Perylene 9003 | Pond / lake / reservoir water | 30 | Nov 2023 – Jun 2026 | below 0.01 µg/l 15 Jun 2026 |
| Phenanthrene 9671 | Pond / lake / reservoir water | 28 | Nov 2023 – Jun 2026 | below 0.01 µg/l 15 Jun 2026 |
| Phenol 9522 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | 0.054 µg/l 10 Jul 2026 |
| Phenoxyacetic acid :- {PAA} 6671 | Pond / lake / reservoir water | 11 | Jan 2024 – Jul 2026 | below 0.01 µg/l 10 Jul 2026 |
| Phosphorus, Total as P 0348 | Pond / lake / reservoir water | 20 | Oct 2023 – Jul 2026 | 0.025 mg/l 10 Jul 2026 |
| Picloram 9883 | Pond / lake / reservoir water | 12 | Oct 2023 – Jul 2026 | below 0.005 µg/l 10 Jul 2026 |
| Potassium, Dissolved 0209 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | 3.2 mg/l 10 Jul 2026 |
| Propoxur 6987 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.005 µg/l 10 Jul 2026 |
| Pyrene 7325 | Pond / lake / reservoir water | 29 | Nov 2023 – Jun 2026 | below 0.01 µg/l 15 Jun 2026 |
| Quinoxyfen 5157 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| sec-Butylbenzene :- {1-Methylpropylbenzene} 6690 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| Selenium, Dissolved 6047 | Pond / lake / reservoir water | 12 | Oct 2023 – Jul 2026 | below 1 µg/l 10 Jul 2026 |
| Simazine 3001 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | 0.00032 µg/l 10 Jul 2026 |
| Sodium, Dissolved 0205 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | 13 mg/l 10 Jul 2026 |
| Strontium, Filtered 6693 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | 90 µg/l 10 Jul 2026 |
| Styrene :- {Vinylbenzene} 9888 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| Sulcotrione 5042 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| Sulphate, Dissolved as SO4 7859 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | 20 mg/l 10 Jul 2026 |
| TDE -pp 0559 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| Terbutryn 3009 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | 0.00046 µg/l 10 Jul 2026 |
| tert-Amyl methyl ether :- {TAME} 9839 | Pond / lake / reservoir water | 26 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| tert-Butylbenzene :- {(1,1-Dimethylethyl)benzene} 6697 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| Tetrachloroethylene :- {Perchloroethylene} 3328 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| Toluene :- {Methylbenzene} 3784 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| trans-1,2-Dichloroethylene :- {trans-1,2-Dichloroethene} 6539 | Pond / lake / reservoir water | 27 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| trans-1,3-Dichloropropylene :- {trans-1,3-Dichloropropene} 6544 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| trans-Heptachlor epoxide 8865 | Pond / lake / reservoir water | 23 | Dec 2023 – Jul 2026 | below 0.00004 µg/l 10 Jul 2026 |
| trans-Permethrin 9342 | Pond / lake / reservoir water | 20 | Oct 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| Tributyl Tin as Cation 8944 | Pond / lake / reservoir water | 30 | Oct 2023 – Jul 2026 | 0.00003 µg/l 10 Jul 2026 |
| Trichloroethylene :- {Trichloroethene} 3334 | Pond / lake / reservoir water | 27 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| Trichlorofluoromethane 6711 | Pond / lake / reservoir water | 27 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| Triclopyr 3555 | Pond / lake / reservoir water | 11 | Oct 2023 – Jul 2026 | below 0.005 µg/l 10 Jul 2026 |
| Triclosan 5889 | Pond / lake / reservoir water | 28 | Apr 2024 – Jul 2026 | below 0.01 µg/l 10 Jul 2026 |
| Trifluralin 9989 | Pond / lake / reservoir water | 24 | Dec 2023 – Jul 2026 | below 0.0001 µg/l 10 Jul 2026 |
| Triphenyl Tin as Cation 5732 | Pond / lake / reservoir water | 31 | Oct 2023 – Jul 2026 | below 0.00002 µg/l 10 Jul 2026 |
| Vinyl chloride :- {Chloroethylene} 6715 | Pond / lake / reservoir water | 27 | Oct 2023 – Jul 2026 | below 0.1 µg/l 10 Jul 2026 |
| Zinc : BLM Bioavailable 4822 | Pond / lake / reservoir water | 28 | Oct 2023 – Jul 2026 | 0.1 µg/l 10 Jul 2026 |
| Zinc, Dissolved 3408 | Pond / lake / reservoir water | 34 | Oct 2023 – Jul 2026 | below 0.5 µg/l 10 Jul 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.