Organization

Thames21

Dataset summary

Sample locations

Contributing from 9 July 0202 → 24 June 2026

Displaying locations 141 - 160 of 384 in total

Lea Guardians
21 observations Apr 20 2024 → Apr 18 2026
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, secchi depth (clarity), turbidity, water depth, water flow, water level, water temperature

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Marsh Dykes & Thamesmead Water Quality Group
10 observations Apr 25 2024 → Apr 12 2026
12 parameters tested

air temperature, algae, current weather, current weather description, nitrate, odour, water surface, oxygen, phosphate, weather in the past 24hrs, weather in the past 24hrs description, water level

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Marsh Dykes & Thamesmead Water Quality Group
7 observations Jul 18 2025 → Apr 11 2026
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

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Brent Catchment Water Quality Working Group
5 observations Jul 02 2024 → Apr 07 2026
16 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, total dissolved solids (tds), water flow, water level, water temperature

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Brent Catchment Water Quality Working Group
6 observations Jul 02 2024 → Apr 07 2026
16 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, total dissolved solids (tds), water flow, water level, water temperature

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Brent Catchment Water Quality Working Group
16 observations Oct 01 2024 → Apr 06 2026
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, secchi depth (clarity), turbidity, water flow, water level, water temperature, water use

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Lea Guardians
26 observations Feb 26 2024 → Apr 06 2026
17 parameters tested

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

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Lea Guardians
59 observations Dec 15 2023 → Mar 27 2026
16 parameters tested

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

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Lea Guardians
58 observations Dec 08 2023 → Mar 27 2026
17 parameters tested

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

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Lea Guardians
97 observations Apr 23 2023 → Mar 09 2026
7 parameters tested

ammonia, conductivity, current weather, phosphate, weather in the past 24hrs, turbidity, water temperature

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Brent Catchment Water Quality Working Group
1 observation Feb 17 2026 → Feb 17 2026
11 parameters tested

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

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Ravensbourne Catchment Improvement Group's Water Quality Working Group
34 observations May 12 2023 → Feb 08 2026
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

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Lea Guardians
4 observations Jun 11 2025 → Jan 27 2026
21 parameters tested

air temperature, algae, ammonia, clarity, colour, conductivity, current weather, current weather description, odour, water surface, oxygen, 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

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Lea Guardians
19 observations Mar 01 2020 → Dec 18 2025
19 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, turbidity, water depth, water flow, water level, water temperature

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Maidenhead to Teddington Water Quality Group
3 observations Mar 05 2025 → Dec 03 2025
13 parameters tested

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

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Lea Guardians
9 observations Mar 01 2025 → Nov 16 2025
21 parameters tested

air temperature, algae, ammonia, clarity, colour, conductivity, current weather, current weather description, odour, water surface, oxygen, 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

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Lea Guardians
2 observations Jul 22 2025 → Nov 16 2025
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

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Roding Beam and Ingrebourne
2 observations Aug 29 2025 → Nov 14 2025
6 parameters tested

ammonia, current precipitation, e. coli, enterococci, phosphate, recent precipitation

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Roding Beam and Ingrebourne
6 observations May 27 2025 → Nov 14 2025
6 parameters tested

ammonia, current precipitation, e. coli, enterococci, phosphate, recent precipitation

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Roding Beam and Ingrebourne
6 observations May 27 2025 → Nov 14 2025
6 parameters tested

ammonia, current precipitation, e. coli, enterococci, phosphate, recent precipitation

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