Dataset

Lea Guardians

Dataset by Thames21

Dataset summary

Observations

13 February 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

13 February 2026

Rectory Farm Footbridge

6 parameters tested

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

13 February 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

13 February 2026

Hollyhill brook

7 parameters tested

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

13 February 2026

Cattlegate Road

7 parameters tested

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

11 February 2026

Jolly Farmers Bridge

7 parameters tested

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

11 February 2026

Botany Bay Bridge

8 parameters tested

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

11 February 2026

Hadley Road Bridge

8 parameters tested

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

11 February 2026

Plumridge Farm 1

7 parameters tested

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

11 February 2026

Plumridge Farm 2

8 parameters tested

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

11 February 2026

Hatch Roundabout - Downstream

12 parameters tested

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

11 February 2026

Hatch Roundabout - Upstream

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

11 February 2026

Plumridge Farm 2

8 parameters tested

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

11 February 2026

Slopers Farm 1

8 parameters tested

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

8 February 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

8 February 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

8 February 2026

Whitehall Outfalls

12 parameters tested

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

8 February 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

8 February 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

8 February 2026

Whitehall Outfall 5b

7 parameters tested

algae, current weather, current weather description, odour, pollution sources, weather in the past 24hrs, weather in the past 24hrs description