Q: Our isometric drawings show 1/2" DCW/DHW (Domestic Cold/Hot Water) distribution lines. The Govt. QA issued a CDR (Contractor Discrepancy Report) to the COR citing deficient DCW/DHW water lines installed per specifications even though the drawings clearly show 1/2". A: There are multiple levels of failures that got you to this point. Lets review: Lack of GC Quality Control - 01 00 00 (1.X) Project Requirement will state it is the Contractors responsibility to provide Quali