Mead Lake Ditch, downstream of Intersection
EA name: MEAD LAKE DITCH, D/S INTERSECTION (also listed as “MEAD LAKE DITCH, DOWNSTREAM OF INTERSECTION”)
Environment Agency sampling point TH-PRTS0044 · 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
- 13 Mar 2024, 10:372.6 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 30 Sep 2026 and had nothing newer.
- Samples banked
- 7 since 25 Oct 2023 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 503330, 169073As published, to the nearest 1 m. Open in a map
- River, by its own name
- Mead Lake Ditch
- River, by the map
- Mead Lake DitchPlaced on the river its name gives, 5 m from the line.
- Next gauge downstream
- Free Prae Road On the Chertsey Bourne · 3.9 km along the river
- Why it was sampled
- Planned investigation (local monitoring) (7 samples)
Main measurements, river water
Dissolved oxygen
% saturation · code 9901 · %
80.5%
Sampled 13 Mar 2024, 2.6 years ago · 3 results banked
Every result (3)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Mar 2024, 10:37 | 80.5 | 80.5% |
| 15 Feb 2024, 11:53 | 89.5 | 89.5% |
| 25 Oct 2023, 11:38 | 45.1 | 45.1% |
Dissolved oxygen
as O2 · code 9924 · mg/l
9.12 mg/l
Sampled 13 Mar 2024, 2.6 years ago · 3 results banked
Every result (3)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Mar 2024, 10:37 | 9.12 | 9.12 mg/l |
| 15 Feb 2024, 11:53 | 10.01 | 10.01 mg/l |
| 25 Oct 2023, 11:38 | 4.46 | 4.46 mg/l |
Water temperature
code 0076 · °C
9.6 °C
Sampled 13 Mar 2024, 2.6 years ago · 5 results banked
Also measured in celsius on another sample material (2GZZ): 1 result, kept apart (see the table).
Every result (5)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Mar 2024, 10:37 | 9.6 | 9.6 °C |
| 15 Feb 2024, 11:53 | 10 | 10 °C |
| 13 Dec 2023, 10:56 | 6.5 | 6.5 °C |
| 7 Nov 2023, 12:33 | 9.5 | 9.5 °C |
| 25 Oct 2023, 11:38 | 12.5 | 12.5 °C |
pH
code 0061
7.45
Sampled 13 Mar 2024, 2.6 years ago · 5 results banked
Every result (5)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Mar 2024, 10:37 | 7.45 | 7.45 |
| 15 Feb 2024, 11:53 | 7.52 | 7.52 |
| 13 Dec 2023, 10:56 | 7.43 | 7.43 |
| 7 Nov 2023, 12:33 | 7.92 | 7.92 |
| 25 Oct 2023, 11:38 | 7.57 | 7.57 |
Ammonia
ammoniacal nitrogen as N · code 0111 · mg/l
0.51 mg/l
Sampled 13 Mar 2024, 2.6 years ago · 5 results banked
Every result (5)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Mar 2024, 10:37 | 0.51 | 0.51 mg/l |
| 15 Feb 2024, 11:53 | 0.46 | 0.46 mg/l |
| 13 Dec 2023, 10:56 | 0.43 | 0.43 mg/l |
| 7 Nov 2023, 12:33 | 0.35 | 0.35 mg/l |
| 25 Oct 2023, 11:38 | 0.13 | 0.13 mg/l |
Nitrate
as nitrogen (N) · code 0117 · mg/l
1.65 mg/l
Sampled 13 Mar 2024, 2.6 years ago · 5 results banked
Every result (5)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Mar 2024, 10:37 | 1.65 | 1.65 mg/l |
| 15 Feb 2024, 11:53 | 1.34 | 1.34 mg/l |
| 13 Dec 2023, 10:56 | 0.594 | 0.594 mg/l |
| 7 Nov 2023, 12:33 | 0.154 | 0.154 mg/l |
| 25 Oct 2023, 11:38 | 0.189 | 0.189 mg/l |
Phosphate
orthophosphate, reactive, as P · code 0180 · mg/l
below 0.01 mg/l (not detected above this)
Sampled 13 Mar 2024, 2.6 years ago · 3 results banked
Every result (3)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Mar 2024, 10:37 | <0.01 | below 0.01 mg/l (not detected above this) |
| 15 Feb 2024, 11:53 | <0.01 | below 0.01 mg/l (not detected above this) |
| 25 Oct 2023, 11:38 | 0.081 | 0.081 mg/l |
Turbidity
code 6396 · NTU
3.6 NTU
Sampled 17 Jan 2024, 2.7 years ago · 2 results banked
Every result (2)
| Sampled | Result as published | Reads as |
|---|---|---|
| 17 Jan 2024, 12:54 | 3.6 | 3.6 NTU |
| 25 Oct 2023, 11:38 | 2.2 | 2.2 NTU |
Conductivity
at 25 °C · code 0077 · µS/cm
890 µS/cm
Sampled 13 Mar 2024, 2.6 years ago · 3 results banked
Every result (3)
| Sampled | Result as published | Reads as |
|---|---|---|
| 13 Mar 2024, 10:37 | 890 | 890 µS/cm |
| 15 Feb 2024, 11:53 | 920 | 920 µS/cm |
| 25 Oct 2023, 11:38 | 730 | 730 µS/cm |
E. coli
confirmed, membrane filtration · code 2348 · per 100 ml
63 per 100 ml
Sampled 15 Feb 2024, 2.6 years ago · 1 result banked
Every result (1)
| Sampled | Result as published | Reads as |
|---|---|---|
| 15 Feb 2024, 11:53 | 63 | 63 per 100 ml |
Everything measured here
281 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 283 rows
| Determinand | Material | Results | First – last | Latest result |
|---|---|---|---|---|
| Oxygen, Dissolved, % Saturation 9901 | River water | 3 | Oct 2023 – Mar 2024 | 80.5% 13 Mar 2024 |
| Oxygen, Dissolved as O2 9924 | River water | 3 | Oct 2023 – Mar 2024 | 9.12 mg/l 13 Mar 2024 |
| Temperature of Water 0076 | River water | 5 | Oct 2023 – Mar 2024 | 9.6 °C 13 Mar 2024 |
| Temperature of Water 0076 | Pond / lake / reservoir water | 1 | Nov 2023 – Nov 2023 | 10.3 °C 7 Nov 2023 |
| pH 0061 | River water | 5 | Oct 2023 – Mar 2024 | 7.45 13 Mar 2024 |
| Ammoniacal Nitrogen as N 0111 | River water | 5 | Oct 2023 – Mar 2024 | 0.51 mg/l 13 Mar 2024 |
| Nitrate as N 0117 | River water | 5 | Oct 2023 – Mar 2024 | 1.65 mg/l 13 Mar 2024 |
| Orthophosphate, reactive as P 0180 | River water | 3 | Oct 2023 – Mar 2024 | below 0.01 mg/l 13 Mar 2024 |
| Turbidity 6396 | River water | 2 | Oct 2023 – Jan 2024 | 3.6 NTU 17 Jan 2024 |
| Conductivity at 25 C 0077 | River water | 3 | Oct 2023 – Mar 2024 | 890 µS/cm 13 Mar 2024 |
| Escherichia coli : Confirmed : MF 2348 | River water | 1 | Feb 2024 – Feb 2024 | 63 per 100 ml 15 Feb 2024 |
| 1,1,1,2-Tetrachloroethane 6534 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| 1,1,1-Trichloroethane 3268 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| 1,1,2,2-Tetrachloroethane 7531 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| 1,1,2-Trichloroethane 9811 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| 1,1-Dichloroethane 3269 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| 1,1-Dichloroethylene :- {1,1-Dichloroethene} 9836 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| 1,1-Dichloropropylene :- {1,1-Dichloropropene} 9684 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| 1,2,3-Trichlorobenzene 9050 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| 1,2,3-Trichloropropane 6541 | River water | 1 | Oct 2023 – Oct 2023 | below 0.5 µg/l 25 Oct 2023 |
| 1,2,3-Trimethylbenzene 9457 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| 1,2,4-Trichlorobenzene 9051 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| 1,2,4-Trimethylbenzene 9456 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| 1,2-Dibromo-3-chloropropane 6537 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| 1,2-Dibromoethane 9145 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| 1,2-Dichlorobenzene 9618 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| 1,2-Dichloroethane 3272 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| 1,2-Dichloropropane 6540 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| 1,2-Dimethylbenzene :- {o-Xylene} 9845 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| 1,3,5-Trichlorobenzene 9052 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| 1,3,5-Trimethylbenzene :- {Mesitylene} 9458 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| 1,3-Dichlorobenzene 9619 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| 1,3-Dichloropropane 6542 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| 1,4-Dichlorobenzene 4049 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (F-53B Minor) 2993 | River water | 1 | Oct 2023 – Oct 2023 | below 0.001 µg/l 25 Oct 2023 |
| 2,2-Dichloropropane 6744 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| 2,4,5-Trichlorophenol 9818 | River water | 1 | Oct 2023 – Oct 2023 | below 1 µg/l 25 Oct 2023 |
| 2,4,6-Trichlorophenol 9819 | River water | 1 | Oct 2023 – Oct 2023 | below 1 µg/l 25 Oct 2023 |
| 2,4-D :- {2,4-Dichlorophenoxyacetic acid} 3545 | River water | 1 | Oct 2023 – Oct 2023 | below 0.005 µg/l 25 Oct 2023 |
| 2,4-Dichlorophenol 9816 | River water | 1 | Oct 2023 – Oct 2023 | below 0.02 µg/l 25 Oct 2023 |
| 2,4-Dimethylphenol :- {2,4-Xylenol} 3343 | River water | 1 | Oct 2023 – Oct 2023 | below 1 µg/l 25 Oct 2023 |
| 2,4-Dinitrotoluene :- {2,4-DNT} 9929 | River water | 1 | Oct 2023 – Oct 2023 | below 1 µg/l 25 Oct 2023 |
| 2,6-Dinitrotoluene :- {2,6-DNT} 9953 | River water | 1 | Oct 2023 – Oct 2023 | below 1 µg/l 25 Oct 2023 |
| 2-(N-Ethylperfluorooctanesulfonamido)acetic acid (L) 2991 | River water | 1 | Oct 2023 – Oct 2023 | below 0.001 µg/l 25 Oct 2023 |
| 2-(N-Methylperfluorooctanesulfonamido)acetic acid (L) 2990 | River water | 1 | Oct 2023 – Oct 2023 | below 0.0005 µg/l 25 Oct 2023 |
| 2-Chloronapthalene 5302 | River water | 1 | Oct 2023 – Oct 2023 | below 1 µg/l 25 Oct 2023 |
| 2-Chlorophenol 9814 | River water | 1 | Oct 2023 – Oct 2023 | below 0.02 µg/l 25 Oct 2023 |
| 2-Chlorotoluene :- {1-Chloro-2-methylbenzene} 6547 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| 2-Methylnaphthalene 5301 | River water | 1 | Oct 2023 – Oct 2023 | below 1 µg/l 25 Oct 2023 |
| 2-Methylphenol :- {o-Cresol} 5562 | River water | 1 | Oct 2023 – Oct 2023 | below 1 µg/l 25 Oct 2023 |
| 2-Nitrophenol 8661 | River water | 1 | Oct 2023 – Oct 2023 | below 1 µg/l 25 Oct 2023 |
| 2H,2H,3H,3H-Perfluorooctanoic acid 2989 | River water | 1 | Oct 2023 – Oct 2023 | below 0.001 µg/l 25 Oct 2023 |
| 3-Chlorotoluene :- {3-Chloromethylbenzene} 5568 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) 2988 | River water | 1 | Oct 2023 – Oct 2023 | below 0.005 µg/l 25 Oct 2023 |
| 4-Bromophenyl phenyl ether 5297 | River water | 1 | Oct 2023 – Oct 2023 | below 1 µg/l 25 Oct 2023 |
| 4-Chloro-3-methylphenol :- {p-Chloro-m-cresol} 3342 | River water | 1 | Oct 2023 – Oct 2023 | below 0.02 µg/l 25 Oct 2023 |
| 4-Chlorophenyl phenyl ether 5296 | River water | 1 | Oct 2023 – Oct 2023 | below 1 µg/l 25 Oct 2023 |
| 4-Chlorotoluene :- {1-Chloro-4-methylbenzene} 6578 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| 4-Isopropyltoluene :- {4-methyl-Isopropylbenzene} 6579 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| 4:2 Fluorotelomer sulfonic acid 2987 | River water | 1 | Oct 2023 – Oct 2023 | below 0.0005 µg/l 25 Oct 2023 |
| 6:2 Fluorotelomer sulfonic acid 2984 | River water | 1 | Oct 2023 – Oct 2023 | below 0.001 µg/l 25 Oct 2023 |
| 8:2 Fluorotelomer sulfonic acid 2983 | River water | 1 | Oct 2023 – Oct 2023 | below 0.001 µg/l 25 Oct 2023 |
| 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid 2982 | River water | 1 | Oct 2023 – Oct 2023 | below 0.0005 µg/l 25 Oct 2023 |
| Acenaphthene 7395 | River water | 2 | Oct 2023 – Feb 2024 | below 2 µg/l 15 Feb 2024 |
| Acenaphthylene 8311 | River water | 2 | Oct 2023 – Feb 2024 | below 2 µg/l 15 Feb 2024 |
| Aclonifen 3478 | River water | 1 | Oct 2023 – Oct 2023 | below 0.0001 µg/l 25 Oct 2023 |
| Acrylamide 5104 | River water | 2 | Feb 2024 – Mar 2024 | below 0.1 µg/l 13 Mar 2024 |
| Alachlor 7086 | River water | 1 | Oct 2023 – Oct 2023 | below 0.0001 µg/l 25 Oct 2023 |
| Alkalinity to pH 4.5 as CaCO3 0162 | River water | 3 | Oct 2023 – Mar 2024 | 300 mg/l 13 Mar 2024 |
| Aluminium 6057 | River water | 1 | Oct 2023 – Oct 2023 | 18 µg/l 25 Oct 2023 |
| Ammonia un-ionised as N 0119 | River water | 5 | Oct 2023 – Mar 2024 | 0.00258 mg/l 13 Mar 2024 |
| Ammoniacal Nitrogen, Filtered as N 9993 | River water | 2 | Feb 2024 – Mar 2024 | 0.48 mg/l 13 Mar 2024 |
| Amoxicillin 5405 | River water | 1 | Oct 2023 – Oct 2023 | below 0.05 µg/l 25 Oct 2023 |
| Anthracene 6753 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 µg/l 25 Oct 2023 |
| Antimony 6058 | River water | 1 | Oct 2023 – Oct 2023 | below 1 µg/l 25 Oct 2023 |
| Arsenic 6046 | River water | 1 | Oct 2023 – Oct 2023 | 1.8 µg/l 25 Oct 2023 |
| Asulam 3004 | River water | 1 | Oct 2023 – Oct 2023 | below 0.02 µg/l 25 Oct 2023 |
| Atrazine 3002 | River water | 2 | Oct 2023 – Mar 2024 | below 0.003 µg/l 13 Mar 2024 |
| Bentazone 4065 | River water | 1 | Oct 2023 – Oct 2023 | below 0.003 µg/l 25 Oct 2023 |
| Benzene 3781 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| Benzo(a)Anthracene 0772 | River water | 1 | Oct 2023 – Oct 2023 | below 1 µg/l 25 Oct 2023 |
| Benzo(a)Pyrene 6399 | River water | 1 | Oct 2023 – Oct 2023 | below 1 µg/l 25 Oct 2023 |
| Benzo(b)Fluoranthene 0731 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 µg/l 25 Oct 2023 |
| Benzo(g,h,i)Perylene 0714 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 µg/l 25 Oct 2023 |
| Benzo(k)Fluoranthene 0733 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 µg/l 25 Oct 2023 |
| Benzyl butyl phthalate 8162 | River water | 1 | Oct 2023 – Oct 2023 | below 1 µg/l 25 Oct 2023 |
| Bifenox 6603 | River water | 1 | Oct 2023 – Oct 2023 | below 0.0001 µg/l 25 Oct 2023 |
| Bis(2-chloroethoxy)methane 5294 | River water | 1 | Oct 2023 – Oct 2023 | below 1 µg/l 25 Oct 2023 |
| Bis(2-chloroethyl)ether 5293 | River water | 1 | Oct 2023 – Oct 2023 | below 1 µg/l 25 Oct 2023 |
| BOD : 5 Day ATU 0085 | River water | 3 | Oct 2023 – Mar 2024 | 2.4 mg/l 13 Mar 2024 |
| Boron 6059 | River water | 1 | Oct 2023 – Oct 2023 | 250 µg/l 25 Oct 2023 |
| Bromate 7016 | River water | 2 | Feb 2024 – Mar 2024 | below 0.002 mg/l 13 Mar 2024 |
| Bromobenzene 6604 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| Bromochloromethane 6605 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| Bromodichloromethane 3282 | River water | 2 | Oct 2023 – Mar 2024 | below 0.1 µg/l 13 Mar 2024 |
| Bromoform :- {Tribromomethane} 3283 | River water | 2 | Oct 2023 – Mar 2024 | below 0.1 µg/l 13 Mar 2024 |
| Cadmium 0108 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| Calcium 0241 | River water | 1 | Oct 2023 – Oct 2023 | 86 mg/l 25 Oct 2023 |
| Carbendazim 3475 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 µg/l 25 Oct 2023 |
| Carbon Disulphide 8847 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| Carbon tetrachloride :- {Tetrachloromethane} 1049 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| Carbon, Organic, Dissolved as C :- {DOC} 0301 | River water | 2 | Feb 2024 – Mar 2024 | 6.7 mg/l 13 Mar 2024 |
| Carbon, Organic, Total as C :- {TOC} 0099 | River water | 2 | Oct 2023 – Feb 2024 | 8.21 mg/l 15 Feb 2024 |
| Chemical Oxygen Demand :- {COD} 0092 | River water | 3 | Oct 2023 – Mar 2024 | 22 mg/l 13 Mar 2024 |
| Chlorfenvinphos 0503 | River water | 2 | Oct 2023 – Jan 2024 | below 0.01 µg/l 17 Jan 2024 |
| Chloride 0172 | River water | 1 | Oct 2023 – Oct 2023 | 62 mg/l 25 Oct 2023 |
| Chlormequat 9952 | River water | 1 | Oct 2023 – Oct 2023 | below 0.2 µg/l 25 Oct 2023 |
| Chlorobenzene 3290 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| Chlorodibromomethane 3292 | River water | 2 | Oct 2023 – Mar 2024 | below 0.1 µg/l 13 Mar 2024 |
| Chloroform :- {Trichloromethane} 3373 | River water | 2 | Oct 2023 – Mar 2024 | below 0.1 µg/l 13 Mar 2024 |
| Chloromethane :- {Methyl Chloride} 6376 | River water | 1 | Oct 2023 – Oct 2023 | below 0.5 µg/l 25 Oct 2023 |
| Chlorophyll : Acetone Extract 7887 | River water | 2 | Oct 2023 – Feb 2024 | 53 µg/l 15 Feb 2024 |
| Chlorothalonil 6615 | River water | 2 | Oct 2023 – Jan 2024 | below 0.001 µg/l 17 Jan 2024 |
| Chlorotoluron 9348 | River water | 2 | Oct 2023 – Feb 2024 | below 0.01 µg/l 15 Feb 2024 |
| Chlorpyrifos-ethyl 9978 | River water | 2 | Oct 2023 – Jan 2024 | below 0.002 µg/l 17 Jan 2024 |
| Chlorpyrifos-methyl 7181 | River water | 2 | Oct 2023 – Jan 2024 | below 0.001 µg/l 17 Jan 2024 |
| Chromium 3164 | River water | 1 | Oct 2023 – Oct 2023 | 0.51 µg/l 25 Oct 2023 |
| Chrysene 8310 | River water | 1 | Oct 2023 – Oct 2023 | below 1 µg/l 25 Oct 2023 |
| cis-1,2-Dichloroethylene :- {cis-1,2-Dichloroethene} 6538 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| cis-1,3-Dichloropropylene :- {cis-1,3-Dichloropropene} 6543 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| Clopyralid 6620 | River water | 1 | Oct 2023 – Oct 2023 | below 0.005 µg/l 25 Oct 2023 |
| Clostridium perfringens : Confirmed : MF 2325 | River water | 1 | Feb 2024 – Feb 2024 | 54 per 100 ml 15 Feb 2024 |
| Clostridium perfringens : Presumptive : MF 3346 | River water | 1 | Feb 2024 – Feb 2024 | 63 colony forming units / 100ml 15 Feb 2024 |
| Colony count : 1 Day at 37C : Aerobic 0933 | River water | 1 | Feb 2024 – Feb 2024 | 54 number per millilitre 15 Feb 2024 |
| Colony count : 2 Days at 37C : Aerobic 0934 | River water | 1 | Feb 2024 – Feb 2024 | 79 number per millilitre 15 Feb 2024 |
| Colony count : 3 Days at 22C : Aerobic 0932 | River water | 1 | Feb 2024 – Feb 2024 | 2000 number per millilitre 15 Feb 2024 |
| Colony count : 3 Days at 37C : Aerobic 7445 | River water | 1 | Feb 2024 – Feb 2024 | 150 number per millilitre 15 Feb 2024 |
| Colony count : 5 Days at 22C : Aerobic 4337 | River water | 1 | Feb 2024 – Feb 2024 | 2400 number per millilitre 15 Feb 2024 |
| Colony count : 7 Days at 22C : Aerobic 0109 | River water | 1 | Feb 2024 – Feb 2024 | 3100 number per millilitre 15 Feb 2024 |
| Conductivity at 20 C 0062 | River water | 3 | Oct 2023 – Mar 2024 | 790 µS/cm 13 Mar 2024 |
| Copper 6452 | River water | 2 | Oct 2023 – Mar 2024 | 2.8 µg/l 13 Mar 2024 |
| Cyanazine 6628 | River water | 1 | Oct 2023 – Oct 2023 | below 0.006 µg/l 25 Oct 2023 |
| Cyanide as CN 0175 | River water | 1 | Oct 2023 – Oct 2023 | below 0.005 mg/l 25 Oct 2023 |
| Cypermethrin 0073 | River water | 2 | Oct 2023 – Feb 2024 | below 0.002 µg/l 15 Feb 2024 |
| Cypermethrin Identification 5446 | River water | 1 | Oct 2023 – Oct 2023 | 1 text result 25 Oct 2023 |
| Di-n-octylphthalate 5236 | River water | 1 | Oct 2023 – Oct 2023 | below 5 µg/l 25 Oct 2023 |
| Diazinon 0723 | River water | 2 | Oct 2023 – Jan 2024 | below 0.001 µg/l 17 Jan 2024 |
| Dibenzo(a,h)Anthracene 8360 | River water | 1 | Oct 2023 – Oct 2023 | below 1 µg/l 25 Oct 2023 |
| Dibenzofuran 5291 | River water | 1 | Oct 2023 – Oct 2023 | below 1 µg/l 25 Oct 2023 |
| Dibutyl Phthalate 6720 | River water | 1 | Oct 2023 – Oct 2023 | below 1 µg/l 25 Oct 2023 |
| Dichloromethane :- {Methylene Dichloride} 3299 | River water | 1 | Oct 2023 – Oct 2023 | below 0.5 µg/l 25 Oct 2023 |
| Dichlorvos 0507 | River water | 2 | Oct 2023 – Jan 2024 | below 0.004 µg/l 17 Jan 2024 |
| Diethyl Phthalate 7567 | River water | 2 | Oct 2023 – Feb 2024 | below 2 µg/l 15 Feb 2024 |
| Dimethoate 6447 | River water | 2 | Oct 2023 – Jan 2024 | below 0.006 µg/l 17 Jan 2024 |
| Dimethyl phthalate 6865 | River water | 1 | Oct 2023 – Oct 2023 | below 1 µg/l 25 Oct 2023 |
| Dimethylbenzene : Sum of isomers (1,3- 1,4-) 6716 | River water | 1 | Oct 2023 – Oct 2023 | below 0.2 µg/l 25 Oct 2023 |
| Diuron 3811 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 µg/l 25 Oct 2023 |
| Endosulfan A 0569 | River water | 2 | Oct 2023 – Jan 2024 | below 0.003 µg/l 17 Jan 2024 |
| Endosulfan B 0570 | River water | 2 | Oct 2023 – Jan 2024 | below 0.004 µg/l 17 Jan 2024 |
| Enterococci: Intestinal: Confirmed: MF 3723 | River water | 1 | Feb 2024 – Feb 2024 | 18 colony forming units / 100ml 15 Feb 2024 |
| Enterococci: Intestinal: Presumptive: MF 3722 | River water | 1 | Feb 2024 – Feb 2024 | 18 colony forming units / 100ml 15 Feb 2024 |
| Equiv.Carbon No >10-12 4358 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 mg/l 25 Oct 2023 |
| Equiv.Carbon No >10-16 4129 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 mg/l 25 Oct 2023 |
| Equiv.Carbon No >10-20 4357 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 mg/l 25 Oct 2023 |
| Equiv.Carbon No >10-24 4356 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 mg/l 25 Oct 2023 |
| Equiv.Carbon No >10-25 4355 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 mg/l 25 Oct 2023 |
| Equiv.Carbon No >10-35 4354 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 mg/l 25 Oct 2023 |
| Equiv.Carbon No >10-40 4353 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 mg/l 25 Oct 2023 |
| Equiv.Carbon No >10-44 4352 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 mg/l 25 Oct 2023 |
| Equiv.Carbon No >12-16 4351 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 mg/l 25 Oct 2023 |
| Equiv.Carbon No >16-21 4350 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 mg/l 25 Oct 2023 |
| Equiv.Carbon No >16-24 4128 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 mg/l 25 Oct 2023 |
| Equiv.Carbon No >16-35 4349 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 mg/l 25 Oct 2023 |
| Equiv.Carbon No >20-30 4347 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 mg/l 25 Oct 2023 |
| Equiv.Carbon No >20-40 4346 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 mg/l 25 Oct 2023 |
| Equiv.Carbon No >20-44 4345 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 mg/l 25 Oct 2023 |
| Equiv.Carbon No >21-35 4348 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 mg/l 25 Oct 2023 |
| Equiv.Carbon No >24-40 4344 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 mg/l 25 Oct 2023 |
| Equiv.Carbon No >24-44 4343 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 mg/l 25 Oct 2023 |
| Equiv.Carbon No >25-40 4342 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 mg/l 25 Oct 2023 |
| Equiv.Carbon No >30-40 4341 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 mg/l 25 Oct 2023 |
| Equiv.Carbon No >35-40 4340 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 mg/l 25 Oct 2023 |
| Equiv.Carbon No >35-44 4339 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 mg/l 25 Oct 2023 |
| Ethyl tert-butyl ether :- {ETBE} 9844 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| Ethylbenzene 4117 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| Fenitrothion 9716 | River water | 2 | Oct 2023 – Jan 2024 | below 0.001 µg/l 17 Jan 2024 |
| Fluoranthene 0736 | River water | 1 | Oct 2023 – Oct 2023 | below 1 µg/l 25 Oct 2023 |
| Fluorene 7864 | River water | 1 | Oct 2023 – Oct 2023 | below 1 µg/l 25 Oct 2023 |
| Fluoride 0177 | River water | 2 | Oct 2023 – Jan 2024 | 0.19 mg/l 17 Jan 2024 |
| Fluroxypyr 4064 | River water | 1 | Oct 2023 – Oct 2023 | below 0.005 µg/l 25 Oct 2023 |
| HCH -alpha 0487 | River water | 2 | Oct 2023 – Jan 2024 | below 0.003 µg/l 17 Jan 2024 |
| HCH -beta 0491 | River water | 2 | Oct 2023 – Jan 2024 | below 0.003 µg/l 17 Jan 2024 |
| HCH -delta 0495 | River water | 2 | Oct 2023 – Jan 2024 | below 0.001 µg/l 17 Jan 2024 |
| HCH -epsilon 8942 | River water | 2 | Oct 2023 – Jan 2024 | below 0.003 µg/l 17 Jan 2024 |
| HCH -gamma :- {Lindane} 0499 | River water | 2 | Oct 2023 – Jan 2024 | below 0.003 µg/l 17 Jan 2024 |
| Hexachlorobenzene 0576 | River water | 1 | Oct 2023 – Oct 2023 | below 1 µg/l 25 Oct 2023 |
| Hexachlorobutadiene 6648 | River water | 2 | Oct 2023 – Jan 2024 | below 0.003 µg/l 17 Jan 2024 |
| Hexachloroethane 5234 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| Hexafluoropropylene oxide dimer acid (Gen X) 2981 | River water | 1 | Oct 2023 – Oct 2023 | below 0.001 µg/l 25 Oct 2023 |
| Indeno(1,2,3-cd)pyrene 0746 | River water | 1 | Oct 2023 – Oct 2023 | below 1 µg/l 25 Oct 2023 |
| Irgarol 1051 8999 | River water | 2 | Oct 2023 – Mar 2024 | below 0.005 µg/l 13 Mar 2024 |
| Iron 6051 | River water | 1 | Oct 2023 – Oct 2023 | 310 µg/l 25 Oct 2023 |
| Isophorone 5289 | River water | 1 | Oct 2023 – Oct 2023 | below 1 µg/l 25 Oct 2023 |
| Isopropylbenzene :- {Methylethylbenzene} 7574 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| Isoproturon 3117 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 µg/l 25 Oct 2023 |
| Lead 0050 | River water | 1 | Oct 2023 – Oct 2023 | below 2 µg/l 25 Oct 2023 |
| Linuron 3118 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 µg/l 25 Oct 2023 |
| Magnesium 0237 | River water | 1 | Oct 2023 – Oct 2023 | 12 mg/l 25 Oct 2023 |
| Malathion 0535 | River water | 2 | Oct 2023 – Jan 2024 | below 0.002 µg/l 17 Jan 2024 |
| Manganese 6050 | River water | 2 | Oct 2023 – Mar 2024 | 170 µg/l 13 Mar 2024 |
| MCPA :- {4-Chloro-2-methylphenoxyacetic acid} 3548 | River water | 1 | Oct 2023 – Oct 2023 | below 0.005 µg/l 25 Oct 2023 |
| MCPB :- {4-Chloro-2-methylphenoxybutyric acid} 3790 | River water | 1 | Oct 2023 – Oct 2023 | below 0.005 µg/l 25 Oct 2023 |
| Mecoprop 3549 | River water | 1 | Oct 2023 – Oct 2023 | below 0.005 µg/l 25 Oct 2023 |
| Mercury 0105 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 µg/l 25 Oct 2023 |
| Metaldehyde 5121 | River water | 1 | Oct 2023 – Oct 2023 | 0.11 µg/l 25 Oct 2023 |
| Methiocarb 6971 | River water | 1 | Oct 2023 – Oct 2023 | below 0.001 µg/l 25 Oct 2023 |
| MTBE :- {Methyl tert-butyl ether} 6656 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| n-ButylBenzene :- {1-Phenylbutane} 6658 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| N-Ethyl-N-(2-hydroxyethyl)perfluorooctanesulfonamide 2978 | River water | 1 | Oct 2023 – Oct 2023 | below 0.02 µg/l 25 Oct 2023 |
| N-Ethylperfluorooctanesulfonamide 2977 | River water | 1 | Oct 2023 – Oct 2023 | below 0.002 µg/l 25 Oct 2023 |
| N-Methyl-N-(2-hydroxyethyl)perfluorooctanesulfonamide 2976 | River water | 1 | Oct 2023 – Oct 2023 | below 0.02 µg/l 25 Oct 2023 |
| N-methylperfluorooctanesulfonamide 2975 | River water | 1 | Oct 2023 – Oct 2023 | below 0.002 µg/l 25 Oct 2023 |
| N-nitrosodi-n-propylamine 5288 | River water | 1 | Oct 2023 – Oct 2023 | below 1 µg/l 25 Oct 2023 |
| n-Propylbenzene :- {1-Phenylpropane} 6659 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| Naphthalene 9669 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| Nickel 6462 | River water | 1 | Oct 2023 – Oct 2023 | 2.3 µg/l 25 Oct 2023 |
| Nitrite as N 0118 | River water | 5 | Oct 2023 – Mar 2024 | 0.054 mg/l 13 Mar 2024 |
| Nitrobenzene 6661 | River water | 1 | Oct 2023 – Oct 2023 | below 1 µg/l 25 Oct 2023 |
| Nitrogen, Dissolved Inorganic : as N 4925 | River water | 2 | Feb 2024 – Mar 2024 | 2.18 mg/l 13 Mar 2024 |
| Nitrogen, Total as N 9686 | River water | 1 | Oct 2023 – Oct 2023 | 1.1 mg/l 25 Oct 2023 |
| Nitrogen, Total Oxidised as N 0116 | River water | 5 | Oct 2023 – Mar 2024 | 1.7 mg/l 13 Mar 2024 |
| Nitrogen, Total Oxidised, Filtered as N 9943 | River water | 2 | Feb 2024 – Mar 2024 | 1.7 mg/l 13 Mar 2024 |
| Nitrogen, Total, Filtered 6866 | River water | 1 | Oct 2023 – Oct 2023 | 1.1 mg/l 25 Oct 2023 |
| Pentachlorophenol 1085 | River water | 1 | Oct 2023 – Oct 2023 | below 0.02 µg/l 25 Oct 2023 |
| Perfluoro-4-ethylcyclohexanesulfonic acid 2973 | River water | 1 | Oct 2023 – Oct 2023 | 0.00088 µg/l 25 Oct 2023 |
| Perfluorobutanesulfonic acid 2972 | River water | 1 | Oct 2023 – Oct 2023 | 0.0068 µg/l 25 Oct 2023 |
| Perfluorobutanoic acid 2995 | River water | 1 | Oct 2023 – Oct 2023 | 0.016 µg/l 25 Oct 2023 |
| Perfluorobutylsulfonamide (perfluorobutane sulfonamide) 2970 | River water | 1 | Oct 2023 – Oct 2023 | 0.001 µg/l 25 Oct 2023 |
| Perfluorodecanesulfonic acid 2969 | River water | 1 | Oct 2023 – Oct 2023 | below 0.002 µg/l 25 Oct 2023 |
| Perfluorodecanoic acid 8892 | River water | 1 | Oct 2023 – Oct 2023 | below 0.002 µg/l 25 Oct 2023 |
| Perfluorododecane sulfonic acid 2968 | River water | 1 | Oct 2023 – Oct 2023 | below 0.005 µg/l 25 Oct 2023 |
| Perfluorododecanoic acid 8894 | River water | 1 | Oct 2023 – Oct 2023 | below 0.002 µg/l 25 Oct 2023 |
| Perfluoroheptanesulfonic acid 2967 | River water | 1 | Oct 2023 – Oct 2023 | below 0.0005 µg/l 25 Oct 2023 |
| Perfluoroheptanoic acid 8889 | River water | 1 | Oct 2023 – Oct 2023 | 0.0039 µg/l 25 Oct 2023 |
| Perfluorohexanesulfonamide 2965 | River water | 1 | Oct 2023 – Oct 2023 | below 0.0005 µg/l 25 Oct 2023 |
| Perfluorohexanesulfonic acid (L) 2964 | River water | 1 | Oct 2023 – Oct 2023 | 0.0044 µg/l 25 Oct 2023 |
| Perfluorohexanoic acid 8888 | River water | 1 | Oct 2023 – Oct 2023 | 0.0077 µg/l 25 Oct 2023 |
| Perfluorononanesulfonic acid 2963 | River water | 1 | Oct 2023 – Oct 2023 | below 0.0005 µg/l 25 Oct 2023 |
| Perfluorononanoic acid 8891 | River water | 1 | Oct 2023 – Oct 2023 | below 0.001 µg/l 25 Oct 2023 |
| Perfluorooctadecanoic acid 2962 | River water | 1 | Oct 2023 – Oct 2023 | below 0.002 µg/l 25 Oct 2023 |
| Perfluorooctanesulfonamide 2961 | River water | 1 | Oct 2023 – Oct 2023 | below 0.001 µg/l 25 Oct 2023 |
| Perfluorooctanesulfonic acid (branched) 2960 | River water | 1 | Oct 2023 – Oct 2023 | 0.0044 µg/l 25 Oct 2023 |
| Perfluorooctanesulfonic acid (linear) 2959 | River water | 1 | Oct 2023 – Oct 2023 | 0.0038 µg/l 25 Oct 2023 |
| Perfluorooctanoic acid 8890 | River water | 1 | Oct 2023 – Oct 2023 | 0.0068 µg/l 25 Oct 2023 |
| Perfluorooctylsulphonate anion 9276 | River water | 1 | Oct 2023 – Oct 2023 | 0.013 µg/l 25 Oct 2023 |
| Perfluoropentanesulfonic acid 2957 | River water | 1 | Oct 2023 – Oct 2023 | 0.00089 µg/l 25 Oct 2023 |
| Perfluoropentanoic acid 8887 | River water | 1 | Oct 2023 – Oct 2023 | 0.019 µg/l 25 Oct 2023 |
| Perfluorotetradecanoic acid 8895 | River water | 1 | Oct 2023 – Oct 2023 | below 0.006 µg/l 25 Oct 2023 |
| Perfluorotridecanoic acid 2955 | River water | 1 | Oct 2023 – Oct 2023 | below 0.005 µg/l 25 Oct 2023 |
| Perfluoroundecane sulfonic acid 2953 | River water | 1 | Oct 2023 – Oct 2023 | below 0.004 µg/l 25 Oct 2023 |
| Perfluoroundecanoic acid 8893 | River water | 1 | Oct 2023 – Oct 2023 | below 0.002 µg/l 25 Oct 2023 |
| Phenanthrene 9671 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 µg/l 25 Oct 2023 |
| Phenol 9522 | River water | 1 | Oct 2023 – Oct 2023 | 0.12 µg/l 25 Oct 2023 |
| Phosphate :- {TIP} 0192 | River water | 1 | Oct 2023 – Oct 2023 | 0.11 mg/l 25 Oct 2023 |
| Phosphorus, Dissolved 0346 | River water | 1 | Oct 2023 – Oct 2023 | 0.086 mg/l 25 Oct 2023 |
| Phosphorus, Total as P 0348 | River water | 1 | Oct 2023 – Oct 2023 | 0.14 mg/l 25 Oct 2023 |
| Propyzamide 6448 | River water | 1 | Oct 2023 – Oct 2023 | below 0.005 µg/l 25 Oct 2023 |
| Pyrene 7325 | River water | 1 | Oct 2023 – Oct 2023 | below 0.01 µg/l 25 Oct 2023 |
| Quinoxyfen 5157 | River water | 1 | Oct 2023 – Oct 2023 | below 0.0001 µg/l 25 Oct 2023 |
| Salinity : In Situ 7608 | River water | 3 | Oct 2023 – Mar 2024 | 0.43 parts per thousand 13 Mar 2024 |
| sec-Butylbenzene :- {1-Methylpropylbenzene} 6690 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| Selenium 6049 | River water | 1 | Oct 2023 – Oct 2023 | below 1 µg/l 25 Oct 2023 |
| Simazine 3001 | River water | 2 | Oct 2023 – Mar 2024 | below 0.003 µg/l 13 Mar 2024 |
| Sodium 0207 | River water | 1 | Oct 2023 – Oct 2023 | 42 mg/l 25 Oct 2023 |
| Solids, Suspended at 105 C 0135 | River water | 3 | Oct 2023 – Mar 2024 | 7.2 mg/l 13 Mar 2024 |
| Styrene :- {Vinylbenzene} 9888 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| Sulphate as SO4 0183 | River water | 1 | Oct 2023 – Oct 2023 | 65 mg/l 25 Oct 2023 |
| Terbutryn 3009 | River water | 1 | Oct 2023 – Oct 2023 | below 0.004 µg/l 25 Oct 2023 |
| tert-Amyl methyl ether :- {TAME} 9839 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| tert-Butylbenzene :- {(1,1-Dimethylethyl)benzene} 6697 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| Tetrachloroethylene :- {Perchloroethylene} 3328 | River water | 3 | Oct 2023 – Mar 2024 | below 0.1 µg/l 13 Mar 2024 |
| Toluene :- {Methylbenzene} 3784 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| trans-1,2-Dichloroethylene :- {trans-1,2-Dichloroethene} 6539 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| trans-1,3-Dichloropropylene :- {trans-1,3-Dichloropropene} 6544 | River water | 1 | Oct 2023 – Oct 2023 | below 0.5 µg/l 25 Oct 2023 |
| Tributyl Tin as Cation 8944 | River water | 1 | Oct 2023 – Oct 2023 | below 0.0005 µg/l 25 Oct 2023 |
| Trichloroethylene :- {Trichloroethene} 3334 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| Trichlorofluoromethane 6711 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| Trihalomethanes : Total :- {THM} 1200 | River water | 2 | Oct 2023 – Mar 2024 | below 0.4 µg/l 13 Mar 2024 |
| Triphenyl Tin as Cation 5732 | River water | 1 | Oct 2023 – Oct 2023 | below 0.002 µg/l 25 Oct 2023 |
| Vanadium 6061 | River water | 1 | Oct 2023 – Oct 2023 | below 2 µg/l 25 Oct 2023 |
| Vinyl chloride :- {Chloroethylene} 6715 | River water | 1 | Oct 2023 – Oct 2023 | below 0.1 µg/l 25 Oct 2023 |
| Zinc 6455 | River water | 2 | Oct 2023 – Mar 2024 | 18 µg/l 13 Mar 2024 |
| Cypermethrin 0073 | Pond / lake / reservoir water | 1 | Nov 2023 – Nov 2023 | below 0.002 µg/l 7 Nov 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.
Contains OS data © Crown copyright and database rights 2026.