Underground Piping and Conduits

1.         PURPOSE   1.1       This specification defines the minimum requirements for materials and installation of… Read More »Underground Gravity Drainage Systems

28-4AEL620300 Electrical Work 28-4AEL3620304 Specification for Electrical Underground Work 28-4ACS640250 Underground Gravity Drainage Systems 28-4WCE670200… Read More »Underground Piping and Conduit