CHAPTER 4 INSTALLATION OF PIPE AND TESTING OF system Treatment of soils adjacent to pipes is different than normal placement of embankment Pipes must be adequately protected by soils, prior to allowing 2012 v1.0 4-5. 4-6 2012 v1.0. 2012 v1.0 4-7 PIPE MARKINGS Plant stamps pipe with date cast, size, lot number . Get Price