Dataset

Lea Guardians

Dataset by Thames21

Dataset summary

Observations

21 May 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

20 May 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

20 May 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 May 2026

OUTFALL PYMM0161: Shirebourne Culvert Victoria Rec Ground

15 parameters tested

algae, ammonia, clarity, colour, current weather, current weather description, odour, oxygen, phosphate, pollution sources, weather in the past 24hrs, weather in the past 24hrs description, turbidity, water level, water use

19 May 2026

Rectory Farm

12 parameters tested

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

18 May 2026

Beech Hall

12 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

18 May 2026

Beech Hall Crescent CSO

11 parameters tested

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

17 May 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 May 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 May 2026

Grovelands Park Lake Entry

7 parameters tested

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

17 May 2026

Grovelands Park Lake Downstream of reedbeds

7 parameters tested

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

17 May 2026

Grovelands Park Stream below dam

7 parameters tested

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

17 May 2026

Newgate Street

10 parameters tested

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

17 May 2026

D/S Whitehall Rd

11 parameters tested

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

17 May 2026

Whitehall Outfalls

11 parameters tested

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

17 May 2026

Whitehall Outfall 5b

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

17 May 2026

Whitehall Outfall 5a

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

16 May 2026

Eversley Crescent Outfall (Downstream)

5 parameters tested

ammonia, clarity, odour, phosphate, pollution sources

16 May 2026

The Charter Road (Gordon Avenue)

15 parameters tested

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 May 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