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WIS and IGN Library

The Library contains WIS & IGN as PDF files in one of four states (current, draft, archived, archival candidate) for free download. Pay close attention to a document’s caveats.

WIS and IGN Library

WIS

WIS 4-04-01 Issue 1 Specification for type 1 package pumping stations comprising a pumping assembly installed in a dry chamber and intended to serve more than one property

Issue: December 2012 Code: 4-04-01 Status: Current
WIS

WIS 4-04-02 Issue 1 Specification for package pumping stations intended to serve more than one property

Issue: December 2012 Code: 4-04-02 Status: Current
Archived

IGN 4-05-01: Issue 1 Guidance on allocation and calculation of costs for self lay of water mains

Issue: January 2014 Code: 4-05-01 Status: Archived
Ageing

IGN 4-08-01 Issue 4 Bedding and sidefill materials for buried pipelines

Issue: February 1994 Code: 4-08-01 Status: Ageing
Ageing

IGN 4-08-01A Amendment to: Bedding and Sidefill Materials for Buried Pipelines

Issue: November 2008 Code: 4-08-01A Status: Ageing
Ageing

WIS 4-08-02 Issue 1 Specification for bedding and sidefill materials for buried pipelines

Issue: February 1994 Code: 4-08-02 Status: Ageing
Ageing

WIS 4-08-02A Amendment to: Specification for bedding and sidefill materials for buried pipelines

Issue: November 2008 Code: 4-08-02A Status: Ageing
IGN

IGN 4-11-01 Issue 2 Vitrified clay pipes and fittings

Issue: February 1984 Code: 4-11-01 Status: Current
IGN

IGN 4-11-02 Issue 1 Revised bedding factors for vitrified clay drains and sewers

Issue: February 1988 Code: 4-11-02 Status: Current
IGN

IGN 4-12-01 Issue 4 Precast concrete pipes – unreinforced and reinforced, with flexible joints

Issue: March 1991 Code: 4-12-01 Status: Current