Dataset

Lea Guardians

Dataset by Thames21

Dataset summary

Observations

22 April 2026

Beech Hall Crescent CSO

10 parameters tested

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

22 April 2026

Beech Hall

10 parameters tested

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

22 April 2026

Jolly Farmers Bridge

7 parameters tested

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

22 April 2026

Botany Bay Bridge

7 parameters tested

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

22 April 2026

Hadley Road Bridge

7 parameters tested

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

22 April 2026

Plumridge Farm 1

8 parameters tested

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

22 April 2026

Plumridge Farm 2

8 parameters tested

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

21 April 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 April 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

20 April 2026

Whitehall Outfall 5b

14 parameters tested

algae, ammonia, 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

20 April 2026

Whitehall Outfall 5a

13 parameters tested

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

19 April 2026

Eversley Crescent Outfall (Downstream)

7 parameters tested

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

19 April 2026

OUTFALL PYMM0161: Shirebourne Culvert Victoria Rec Ground

11 parameters tested

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

18 April 2026

Lordship Recreation Ground (Downstream)

17 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 depth, water flow, water level, water temperature

18 April 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

17 April 2026

Whitehall Plain

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

17 April 2026

Footbridge near Rangers Road

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

17 April 2026

Downstream of Connaught Water

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

17 April 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

17 April 2026

Newgate Street

12 parameters tested

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