Bosses at Anglian Water have pledged they will spend £425m in the region over the next year, including £35m to secure water supplies in Norwich.
The water company had previously outlined how it needs to spend millions to redesign the system at its Heigham water treatment plant in Waterworks Road in the city.
The company also intends to spend £36m maintaining, refurbishing and replacing parts of the 70,000km sewer network. £3m of which will be used to survey and sewers in places like Caister and West and East Runton.
And £6.8m will be spent on providing full sewerage services to customers living in rural properties which have never had a connection to a sewer before.
Such schemes are planned for Fulmodeston, Barney, Hillington, Mattishall, Repps with Bastwick, Swafield, Bradfield, Worsted and Little Ellington.
And a share of £17m will be used to prevent leaks.
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