About this organization
Thames21's water monitoring programme relies on citizen scientists to collect crucial data on river health, focusing on water quality
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View all ›20 parameters tested ▾
air temperature, algae, ammonia, clarity, colour, conductivity, current weather, current weather description, odour, water surface, phosphate, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, total dissolved solids (tds), turbidity, water flow, water level, water temperature, water use
View form & equipment20 parameters tested ▾
air temperature, algae, ammonia, clarity, colour, conductivity, current weather, current weather description, odour, water surface, phosphate, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, total dissolved solids (tds), turbidity, water flow, water level, water temperature, water use
View form & equipment20 parameters tested ▾
air temperature, algae, ammonia, clarity, colour, conductivity, current weather, current weather description, odour, water surface, phosphate, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, total dissolved solids (tds), turbidity, water flow, water level, water temperature, water use
View form & equipment20 parameters tested ▾
air temperature, algae, ammonia, clarity, colour, conductivity, current weather, current weather description, odour, water surface, phosphate, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, total dissolved solids (tds), turbidity, water flow, water level, water temperature, water use
View form & equipment13 parameters tested ▾
ammonia, clarity, colour, current weather, current weather description, odour, phosphate, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, water flow, water level, water use
View form & equipment20 parameters tested ▾
air temperature, algae, ammonia, clarity, colour, conductivity, current weather, current weather description, odour, water surface, phosphate, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, total dissolved solids (tds), turbidity, water flow, water level, water temperature, water use
View form & equipmentRecent photos
View more photos ›-
Westley Mill, 6 May 2026
Dataset: Maidenhead to Teddington Water Quality Group -
Warfield School , 6 May 2026
Dataset: Maidenhead to Teddington Water Quality Group -
Kyd Brook C.S.O, 12 June 2026
Dataset: Ravensbourne Catchment Improvement Group's Water Quality Working Group -
Kyd Brook C.S.O, 12 June 2026
Dataset: Ravensbourne Catchment Improvement Group's Water Quality Working Group
