organization

Thames21

Dataset summary

Sample locations

Contributing from 1 March 2020 → 24 October 2026

Displaying locations 81 - 100 of 396 in total

Lea Guardians
129 observations Jul 31 2021 → Sep 30 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
27 observations Aug 10 2024 → Sep 30 2026
19 parameters tested ▾

air temperature, 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, secchi depth (clarity), turbidity, water flow, water level, water temperature, water use

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Brent Catchment Water Quality Working Group
9 observations Jun 19 2025 → Sep 29 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, turbidity, water depth, water flow, water level, water temperature, water use

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Brent Catchment Water Quality Working Group
10 observations Jul 18 2025 → Sep 29 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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Brent Catchment Water Quality Working Group
4 observations Apr 07 2026 → Sep 29 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, turbidity, water depth, water flow, water level, water temperature, water use

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Brent Catchment Water Quality Working Group
17 observations Feb 02 2024 → Sep 29 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, turbidity, water depth, water flow, water level, water temperature, water use

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Brent Catchment Water Quality Working Group
6 observations Nov 28 2024 → Sep 29 2026
21 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, water use

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Lea Guardians
11 observations Jun 08 2025 → Sep 28 2026
16 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, turbidity, water flow, water level, water temperature, water use

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Lea Guardians
11 observations Jun 08 2025 → Sep 28 2026
16 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, turbidity, water flow, water level, water temperature, water use

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Roding Beam and Ingrebourne
7 observations Mar 06 2026 → Sep 24 2026
7 parameters tested ▾

ammonia, conductivity, current precipitation, phosphate, recent precipitation, turbidity, water temperature

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Roding Beam and Ingrebourne
7 observations Mar 06 2026 → Sep 24 2026
7 parameters tested ▾

ammonia, conductivity, current precipitation, phosphate, recent precipitation, turbidity, water temperature

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Roding Beam and Ingrebourne
7 observations Mar 06 2026 → Sep 24 2026
7 parameters tested ▾

ammonia, conductivity, current precipitation, phosphate, recent precipitation, turbidity, water temperature

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Lea Guardians
23 observations Jun 29 2024 → Sep 24 2026
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

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Lea Guardians
23 observations Jun 29 2024 → Sep 24 2026
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

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Ravensbourne Catchment Improvement Group's Water Quality Working Group
4 observations Aug 17 2026 → Sep 22 2026
18 parameters tested ▾

air temperature, algae, ammonia, clarity, colour, conductivity, current weather description, odour, water surface, phosphate, pollution sources, weather in the past 24hrs description, total dissolved solids (tds), turbidity, water flow, water level, water temperature, water use

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Ravensbourne Catchment Improvement Group's Water Quality Working Group
4 observations Aug 17 2026 → Sep 22 2026
18 parameters tested ▾

air temperature, algae, ammonia, clarity, colour, conductivity, current weather description, odour, water surface, phosphate, pollution sources, weather in the past 24hrs description, total dissolved solids (tds), turbidity, water flow, water level, water temperature, water use

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Ravensbourne Catchment Improvement Group's Water Quality Working Group
4 observations Aug 17 2026 → Sep 22 2026
18 parameters tested ▾

air temperature, algae, ammonia, clarity, colour, conductivity, current weather description, odour, water surface, phosphate, pollution sources, weather in the past 24hrs description, total dissolved solids (tds), turbidity, water flow, water level, water temperature, water use

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Marsh Dykes & Thamesmead Water Quality Group
10 observations Feb 28 2025 → Sep 21 2026
18 parameters tested ▾

air temperature, 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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Marsh Dykes & Thamesmead Water Quality Group
11 observations Apr 25 2024 → Sep 21 2026
22 parameters tested ▾

air temperature, algae, ammonia, clarity, colour, conductivity, current weather, current weather description, nitrate, odour, water surface, oxygen, phosphate, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, total suspended solids (tss), turbidity, water flow, water level, water temperature, water use

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Lea Guardians
3 observations Jun 30 2026 → Sep 20 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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