Dataset

Lea Guardians

Dataset by Thames21

Dataset summary

Observations

3 December 2025

Hatch Roundabout - Downstream

14 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

3 December 2025

Hatch Roundabout - Upstream

14 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

3 December 2025

Cattlegate Road

8 parameters tested

ammonia, conductivity, flow, phosphate, total dissolved solids (tds), turbidity, water depth, water temperature

2 December 2025

Beech Hall

12 parameters tested

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

2 December 2025

Beech Hall Crescent CSO

13 parameters tested

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

1 December 2025

North Access Road

13 parameters tested

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

30 November 2025

Newgate Street

11 parameters tested

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

30 November 2025

D/S Whitehall Rd

13 parameters tested

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

30 November 2025

Whitehall Outfalls

13 parameters tested

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

30 November 2025

Friends Bridge

12 parameters tested

algae, ammonia, clarity, colour, conductivity, current weather, odour, water surface, phosphate, water flow, water level, water temperature

30 November 2025

Flood Relief Channel outflow

12 parameters tested

algae, ammonia, clarity, colour, conductivity, current weather, odour, water surface, phosphate, water flow, water level, water temperature

29 November 2025

Arnos Park Growing Space (downstream)

7 parameters tested

ammonia, conductivity, oxygen, phosphate, water flow, water level, water temperature

29 November 2025

Arnos Park Growing Space (upstream)

7 parameters tested

ammonia, conductivity, oxygen, phosphate, water flow, water level, water temperature

29 November 2025

Waterfall Walk 2 (Downstream)

8 parameters tested

ammonia, conductivity, oxygen, phosphate, turbidity, water flow, water level, water temperature

29 November 2025

Waterfall Walk 1 (Upstream)

9 parameters tested

ammonia, clarity, colour, conductivity, oxygen, phosphate, water flow, water level, water temperature

28 November 2025

The Charter Road (Gordon Avenue)

15 parameters tested

algae, ammonia, colour, conductivity, 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 temperature

28 November 2025

Folly Lane EA monitoring point

13 parameters tested

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

28 November 2025

Highams Park Lake

16 parameters tested

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, water flow, water level, water temperature

27 November 2025

Turkey Street (Upstream)

11 parameters tested

algae, ammonia, conductivity, current weather, current weather description, phosphate, weather in the past 24hrs, weather in the past 24hrs description, turbidity, water flow, water level