Dataset

Lea Guardians

Dataset by Thames21

Dataset summary

Observations

22 January 2026

Slopers Farm 1

8 parameters tested

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

21 January 2026

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

21 January 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

19 January 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

19 January 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

18 January 2026

Whitehall Outfall 5b

13 parameters tested

algae, 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, water temperature

18 January 2026

Whitehall Outfall 5a

12 parameters tested

algae, 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, water temperature

18 January 2026

Newgate Street

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

18 January 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

18 January 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

17 January 2026

Lordship Recreation Ground (Downstream)

16 parameters tested

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

16 January 2026

Grovelands Park Lake Outfall by cafe and dam

7 parameters tested

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

16 January 2026

Grovelands Park Lake Entry

7 parameters tested

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

16 January 2026

Grovelands Park Lake Downstream of reedbeds

7 parameters tested

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

16 January 2026

Grovelands Park Stream below dam

7 parameters tested

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

16 January 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

16 January 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

16 January 2026

Hatch Roundabout - Downstream

12 parameters tested

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

16 January 2026

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

16 January 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