Dataset

Maidenhead to Teddington Water Quality Group

Dataset by Thames21

Dataset summary

Observations

11 July 2026

Westley Mill

13 parameters tested

algae, ammonia, clarity, colour, current weather, current weather description, odour, water surface, phosphate, weather in the past 24hrs description, water flow, water level, water use

11 July 2026

Warfield School

15 parameters tested

algae, ammonia, clarity, colour, current weather, current weather description, odour, water surface, phosphate, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, water flow, water level, water use

11 June 2026

Warfield School

10 parameters tested

algae, ammonia, clarity, colour, current weather, water surface, phosphate, weather in the past 24hrs, water flow, water level

4 June 2026

Thames backwater

14 parameters tested

algae, ammonia, clarity, colour, current weather, current weather description, odour, water surface, phosphate, weather in the past 24hrs, weather in the past 24hrs description, water flow, water level, water use

6 May 2026

Westley Mill

6 parameters tested

ammonia, clarity, colour, phosphate, water flow, water level

6 May 2026

Warfield School

8 parameters tested

algae, ammonia, clarity, colour, water surface, phosphate, water flow, water level

4 May 2026

Thames backwater

13 parameters tested

algae, clarity, colour, current weather, current weather description, odour, water surface, phosphate, weather in the past 24hrs, weather in the past 24hrs description, water flow, water level, water use

25 February 2026

Thames backwater

13 parameters tested

algae, ammonia, clarity, colour, current weather, current weather description, odour, phosphate, weather in the past 24hrs, weather in the past 24hrs description, water flow, water level, water use

28 January 2026

Thames backwater

14 parameters tested

air temperature, algae, ammonia, colour, current weather, current weather description, odour, water surface, phosphate, weather in the past 24hrs, weather in the past 24hrs description, water flow, water level, water use

31 December 2025

Thames backwater

15 parameters tested

air temperature, algae, ammonia, clarity, colour, current weather, current weather description, odour, water surface, phosphate, weather in the past 24hrs, weather in the past 24hrs description, water flow, water level, water use

3 December 2025

Riverbank Apartments

11 parameters tested

air temperature, algae, ammonia, colour, current weather, current weather description, odour, water surface, phosphate, water flow, water level

2 October 2025

Thames backwater

15 parameters tested

air temperature, algae, ammonia, clarity, colour, current weather, current weather description, odour, water surface, phosphate, weather in the past 24hrs, weather in the past 24hrs description, water flow, water level, water use

24 August 2025

Thames backwater

14 parameters tested

air temperature, algae, ammonia, clarity, colour, current weather, current weather description, odour, water surface, phosphate, weather in the past 24hrs, weather in the past 24hrs description, water flow, water level

3 July 2025

Thames backwater

13 parameters tested

air temperature, ammonia, clarity, colour, current weather, current weather description, odour, water surface, phosphate, weather in the past 24hrs, weather in the past 24hrs description, water flow, water level

11 June 2025

Thames backwater

12 parameters tested

air temperature, algae, ammonia, clarity, colour, current weather, odour, water surface, phosphate, weather in the past 24hrs, water flow, water level

30 May 2025

Thames backwater

13 parameters tested

air temperature, algae, ammonia, clarity, colour, current weather, odour, water surface, phosphate, pollution sources, weather in the past 24hrs, water flow, water level

5 May 2025

Thames backwater

14 parameters tested

air temperature, algae, ammonia, clarity, colour, current weather, current weather description, odour, water surface, phosphate, weather in the past 24hrs, weather in the past 24hrs description, water flow, water level

19 March 2025

Riverbank Apartments

5 parameters tested

air temperature, ammonia, current weather, phosphate, weather in the past 24hrs

5 March 2025

Riverbank Apartments

5 parameters tested

air temperature, ammonia, current weather, weather in the past 24hrs, total phosphorus