Title from cover.
"Report ref. no. 07/RG/05/21"--Vol. 1; "Report ref. no. 08/RG/05/22"--Vol. 2.
v. 1. Serviceability indicators
v. 2. Mains condition grading.
Review of water mains serviceability indicators and condition grading by S. Cook. ISBN 1840574801. Published by UK Water Industry Research in 2007. Publication and catalogue information, links to buy online and reader comments.