Technical Information

Regional Standard and Specification

These documents were developed to consolidate the existing codes of practice for water services for Porirua City, Hutt City, Upper Hutt City and Wellington City in order to provide a regionally consistent method of design and implementation of water services across the Wellington region.   Read more

Approved Products Register

The Approved Products Register lists products that are approved for use in Hutt, Upper Hutt, Wellington, and Porirua cities’ water supply and drainage infrastructure projects.   Read more