Dataset

Marsh Dykes & Thamesmead Water Quality Group

Dataset by Thames21

Dataset summary

Observations

24 March 2026

Bostall Woods 3

8 parameters tested

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

24 March 2026

Oxleas Woods 2

6 parameters tested

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

13 March 2026

Oxleas wood, large pond

18 parameters tested

air temperature, algae, ammonia, clarity, colour, conductivity, current weather, current weather description, odour, water surface, phosphate, weather in the past 24hrs, weather in the past 24hrs description, total dissolved solids (tds), turbidity, water flow, water level, water temperature

13 March 2026

Oxleas wood, site 3

11 parameters tested

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

13 March 2026

Oxleas Meadow

6 parameters tested

current weather, current weather description, odour, weather in the past 24hrs, weather in the past 24hrs description, water level

5 March 2026

Southmere Lake Inlet

17 parameters tested

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

5 March 2026

Southmere Lake - north inflow

17 parameters tested

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

26 February 2026

Oxleas Woods 2

4 parameters tested

ammonia, flow, phosphate, water depth

26 February 2026

Clothworkers Wood 1

4 parameters tested

ammonia, flow, turbidity, water depth

26 February 2026

Clothworkers Wood 2

5 parameters tested

ammonia, flow, phosphate, turbidity, water depth

26 February 2026

Bostall Woods 3

5 parameters tested

ammonia, flow, phosphate, turbidity, water depth

25 February 2026

Gallions Lake Wetland 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

25 February 2026

Gallions Lake

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

25 February 2026

Longmarsh Lane

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