Portsmouth Water Ltd

Water supply arrangements

Company Assets

Number of treatment works

19

Number of service reservoirs 

32

Number of water supply zones

15

Length of mains pipe (km)

3,375km

Population Served

Population Supplied

741,000

Number of local authorities

9

Water Supplied

Water Supplied (l/day)

184,572,000 

Percentage from surface sources

42.3%

Percentage of ground sources

37.3%

Percentage from mixed sources

20.4%

Area of supply

Hampshire, West Sussex, Portsmouth

Consumer Contacts

Informing Consumers

Company Figure

Total Number

Rate pet 1,000 population

2019

392

0.55

2020

288

0.40

2021

258

0.35

Industry Average

2021

9,913.96

1.22

Acceptability of water to consumers

Company Figure

Total Number

Rate pet 1,000 population

2019

282

0.39

2020

307

0.43

2021

302

0.41

Industry Average

2021

2,832.12

1.08

Complaints to the Drinking Water Inspectorate

No consumers of Portsmouth Water Ltd directly contacted DWI in 2021. 

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