Northumbrian, Essex and Suffolk Water

Water supply arrangements

Company Assets
Number of treatment works	58
Number of service reservoirs	307
Number of water supply zones	112
Length of mains pipe (km)	26,240km

Population Served
Population Supplied	4,485,000
Number of local authorities	40

Water Supplied
Water Supplied (l/day)	1,174,856,000
Percentage from surface sources	78.86%
Percentage of ground sources	6.7%
Percentage from mixed sources	14.44%

Area of supply

Barking and Dagenham, County Durham, Darlington, Essex, Gateshead, Havering, Middlesbrough, Newcastle upon Tyne, Norfolk, North Tyneside, North Yorkshire, Northumberland, Redbridge, Redcar and Cleveland, South Tyneside, Southend-on-Sea, Stockton-on-Tees, Suffolk, Sunderland, Thurrock 

Consumer Contacts

Informing Consumers

Company Figure	Total Number	Rate per 1,000 population
2019	695	0.23
2020	783	0.80
2021	944	0.21
Industry Average
2021	9,913.96	1.22

Acceptability of water to consumers

Company Figure	Total Number	Rate per 1,000 population
2019	4,828	0.81
2020	4,762	1.25
2021	4,952	1.10
Industry Average
2021	2,832.12	1.08

Complaints to the Drinking Water Inspectorate

A total of 2 consumers of Northumbrian, Essex and Suffolk Water directly contacted DWI in 2021.