Dataset

Lea Guardians

Dataset by Thames21

Dataset summary

Observations

13 September 2025

North Inlet

15 parameters tested

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

13 September 2025

South Inlet

15 parameters tested

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

13 September 2025

North Inlet

19 parameters tested

air temperature, 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, turbidity, water flow, water level, water temperature, water use

13 September 2025

Outlet

19 parameters tested

air temperature, 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, turbidity, water flow, water level, water temperature, water use

13 September 2025

Bottom of Berms

2 parameters tested

ammonia, water depth

13 September 2025

Top of Berms

2 parameters tested

ammonia, phosphate

13 September 2025

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

13 September 2025

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

12 September 2025

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

12 September 2025

Whitehall Plain

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

12 September 2025

Rectory Farm Footbridge

7 parameters tested

ammonia, conductivity, flow, ph, phosphate, turbidity, water temperature

12 September 2025

Hollyhill brook

7 parameters tested

ammonia, conductivity, flow, ph, phosphate, turbidity, water temperature

12 September 2025

Cattlegate Road

7 parameters tested

ammonia, conductivity, flow, ph, phosphate, turbidity, water temperature

12 September 2025

Cuffley Brook upstream

7 parameters tested

ammonia, conductivity, flow, ph, phosphate, turbidity, water temperature

12 September 2025

Maidens Bridge

7 parameters tested

ammonia, conductivity, flow, ph, phosphate, turbidity, water temperature

12 September 2025

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

12 September 2025

Rose and Crown pub

7 parameters tested

ammonia, conductivity, flow, ph, phosphate, turbidity, water temperature

12 September 2025

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

12 September 2025

Folly Lane EA monitoring point

13 parameters tested

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

12 September 2025

Wadham Ave

4 parameters tested

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