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Dataset

Roding Beam and Ingrebourne

Dataset by Thames21

Observations

26 September 2025

OUTFALL: Roding Lane South Pumping Station

3 parameters tested ▾

ammonia, current precipitation, recent precipitation

Paul Powlesland

26 September 2025

OUTFALL: Roding Lane South Substation

4 parameters tested ▾

ammonia, current precipitation, flow, recent precipitation

Paul Powlesland

26 September 2025

Wells Brook Outlet

3 parameters tested ▾

ammonia, current precipitation, recent precipitation

Paul Powlesland

26 September 2025

OUTFALL: Roding Valley Viaduct

4 parameters tested ▾

ammonia, current precipitation, flow, recent precipitation

Paul Powlesland

26 September 2025

Cranbrook entering Valentines Park

3 parameters tested ▾

ammonia, current precipitation, recent precipitation

Paul Powlesland

17 September 2025

OUTFALL: Mayesbrook A13 South

1 parameter tested ▾

ammonia

Paul Powlesland

17 September 2025

Mayesbrook A13 South

3 parameters tested ▾

ammonia, current precipitation, recent precipitation

Aggie Hodges

17 September 2025

Cranbrook entering Valentines Park

4 parameters tested ▾

ammonia, current precipitation, flow, recent precipitation

Paul Powlesland

17 September 2025

OUTFALL: Roding Valley Viaduct

3 parameters tested ▾

ammonia, flow, phosphate

Paul Powlesland

17 September 2025

Wells Brook Outlet

4 parameters tested ▾

ammonia, current precipitation, phosphate, recent precipitation

Paul Powlesland

17 September 2025

OUTFALL: Roding Lane South Substation

4 parameters tested ▾

ammonia, current precipitation, phosphate, recent precipitation

Paul Powlesland

17 September 2025

OUTFALL: Roding Lane South Pumping Station

4 parameters tested ▾

ammonia, current precipitation, phosphate, recent precipitation

Paul Powlesland

17 September 2025

OUTFALL: Royston Gardens

5 parameters tested ▾

ammonia, current precipitation, flow, phosphate, recent precipitation

Paul Powlesland

17 September 2025

Cranbrook at Confluence

5 parameters tested ▾

ammonia, current precipitation, flow, phosphate, recent precipitation

Paul Powlesland

17 September 2025

OUTFALL: Ilford Hill Bridge

5 parameters tested ▾

ammonia, current precipitation, flow, phosphate, recent precipitation

Paul Powlesland

17 September 2025

OUTFALL: Outfall near Aldersbrook Confluence

5 parameters tested ▾

ammonia, current precipitation, flow, phosphate, recent precipitation

Paul Powlesland

17 September 2025

Aldersbrook at Confluence

5 parameters tested ▾

ammonia, current precipitation, flow, phosphate, recent precipitation

Aggie Hodges

17 September 2025

OUTFALL: Uphall Rec

5 parameters tested ▾

ammonia, current precipitation, flow, phosphate, recent precipitation

Paul Powlesland

12 September 2025

Hacton Lane Road Bridge

7 parameters tested ▾

ammonia, conductivity, current precipitation, phosphate, recent precipitation, turbidity, water temperature

Steve Mersh

12 September 2025

Grey Towers Allotment

7 parameters tested ▾

ammonia, conductivity, current precipitation, phosphate, recent precipitation, turbidity, water temperature

Steve Mersh

Date	Notes
26 September 2025 OUTFALL: Roding Lane South Pumping Station	Paul Powlesland 3 parameters tested ▾ ammonia, current precipitation, recent precipitation
26 September 2025 OUTFALL: Roding Lane South Substation	Paul Powlesland 4 parameters tested ▾ ammonia, current precipitation, flow, recent precipitation
26 September 2025 Wells Brook Outlet	Paul Powlesland 3 parameters tested ▾ ammonia, current precipitation, recent precipitation
26 September 2025 OUTFALL: Roding Valley Viaduct	Paul Powlesland 4 parameters tested ▾ ammonia, current precipitation, flow, recent precipitation
26 September 2025 Cranbrook entering Valentines Park	Paul Powlesland 3 parameters tested ▾ ammonia, current precipitation, recent precipitation
17 September 2025 OUTFALL: Mayesbrook A13 South	Paul Powlesland 1 parameter tested ▾ ammonia
17 September 2025 Mayesbrook A13 South	Aggie Hodges https://drive.google.com/file/d/1YOOh_li4Izs77NZGAfUA8cAIs_HNDOi4/view?usp=drive_link 3 parameters tested ▾ ammonia, current precipitation, recent precipitation
17 September 2025 Cranbrook entering Valentines Park	Paul Powlesland 4 parameters tested ▾ ammonia, current precipitation, flow, recent precipitation
17 September 2025 OUTFALL: Roding Valley Viaduct	Paul Powlesland 3 parameters tested ▾ ammonia, flow, phosphate
17 September 2025 Wells Brook Outlet	Paul Powlesland 4 parameters tested ▾ ammonia, current precipitation, phosphate, recent precipitation
17 September 2025 OUTFALL: Roding Lane South Substation	Paul Powlesland 4 parameters tested ▾ ammonia, current precipitation, phosphate, recent precipitation
17 September 2025 OUTFALL: Roding Lane South Pumping Station	Paul Powlesland 4 parameters tested ▾ ammonia, current precipitation, phosphate, recent precipitation
17 September 2025 OUTFALL: Royston Gardens	Paul Powlesland 5 parameters tested ▾ ammonia, current precipitation, flow, phosphate, recent precipitation
17 September 2025 Cranbrook at Confluence	Paul Powlesland 5 parameters tested ▾ ammonia, current precipitation, flow, phosphate, recent precipitation
17 September 2025 OUTFALL: Ilford Hill Bridge	Paul Powlesland 5 parameters tested ▾ ammonia, current precipitation, flow, phosphate, recent precipitation
17 September 2025 OUTFALL: Outfall near Aldersbrook Confluence	Paul Powlesland 5 parameters tested ▾ ammonia, current precipitation, flow, phosphate, recent precipitation
17 September 2025 Aldersbrook at Confluence	Aggie Hodges Video: https://drive.google.com/file/d/19RZr2Ce78RemlwOYHxzPjFwruwc91xwa/view?usp=drive_link 5 parameters tested ▾ ammonia, current precipitation, flow, phosphate, recent precipitation
17 September 2025 OUTFALL: Uphall Rec	Paul Powlesland 5 parameters tested ▾ ammonia, current precipitation, flow, phosphate, recent precipitation
12 September 2025 Hacton Lane Road Bridge	Steve Mersh good flow 7 parameters tested ▾ ammonia, conductivity, current precipitation, phosphate, recent precipitation, turbidity, water temperature
12 September 2025 Grey Towers Allotment	Steve Mersh The river was low with a rapid flow. 7 parameters tested ▾ ammonia, conductivity, current precipitation, phosphate, recent precipitation, turbidity, water temperature

Concerns: Identify problem outfalls and areas of poor water quality
Intended audience: Our community
Intended use: Benchmarking of water body or watershed health

Monitoring program details

Method and parameters details: View form
Water quality criteria: United Kingdom
Sampling frequency: Weekly

Data sharing

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(under review) This group has requested to be integrated with DataStream

Latest contribution to the dataset

Steve Mersh on 30 September at Hacton Lane Road Bridge

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