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Flood and Water Management Bill

Volume 716: debated on Tuesday 5 January 2010


Asked by

To ask Her Majesty's Government on what data they based their cost comparisons regarding the Flood and Water Management Bill. [HL751]

The information on the sources of data used in determining costs in the flow bills are provided within the individual impact assessments (IA), available on the Defra website at

The table below provides a list of the key data sources used in determining the costs for each IA, and the location of the source within the relevant IA.

IA Title

Data Source

Location within IA

Designation of Third Party Flood and Coastal Risk Management Assets (Features)

Environment Agency's National Flood and Coastal Defence Database

Annexe C

2004 National Assessment of Defence Needs and Costs

Annexe C

Estimates for other costs provided by the Environment Agency from experience

Annexe C

Local Flood Risk and the increased use of Sustainable Drainage Systems

Collating the Urban Drainage Evidence Base CIRIA 2008

Page 36

Halcrow Group Limited Impact Assessment of Local Flood Risk Management Supplementary Evidence Base (August 2009)

Page 52

Pitt Review

Page 53

Reservoir Safety

Cost estimates provided by institutional owners of the resource

Annexe 3

Environment Agency Reservoirs Register for Large Reservoirs

Annexe 3

Environment Agency provided estimates of Small Reservoirs from work undertaken by Halcrow

Annexe 3