Dataset

Lea Guardians

Dataset by Thames21

Dataset summary

Observations

29 March 2026

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

29 March 2026

Folly Lane EA monitoring point

14 parameters tested

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

29 March 2026

Eversley Crescent Outfall (Downstream)

6 parameters tested

ammonia, current weather, current weather description, phosphate, weather in the past 24hrs, weather in the past 24hrs description

27 March 2026

Sainsbury's

12 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

27 March 2026

Wadham Ave

13 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

27 March 2026

The Charter Road (Gordon Avenue)

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 March 2026

Highams Park Lake

13 parameters tested

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

27 March 2026

Whitehall Outfall 5b

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 temperature

27 March 2026

Whitehall Outfall 5a

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 temperature

24 March 2026

Hatch Roundabout - Downstream

13 parameters tested

algae, 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

24 March 2026

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

23 March 2026

Arnos Park Growing Space (downstream)

4 parameters tested

ammonia, conductivity, phosphate, water temperature

23 March 2026

Arnos Park Growing Space (upstream)

4 parameters tested

ammonia, conductivity, phosphate, water temperature

23 March 2026

Waterfall Walk 2 (Downstream)

4 parameters tested

ammonia, conductivity, phosphate, water temperature

23 March 2026

Waterfall Walk 1 (Upstream)

4 parameters tested

ammonia, conductivity, phosphate, water temperature

22 March 2026

Beech Hall

13 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

22 March 2026

Beech Hall Crescent CSO

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

22 March 2026

Newgate Street

12 parameters tested

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

22 March 2026

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

22 March 2026

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