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Mr. Wendell Iwatsuru, P.E., M.ASCE


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RE: Vertical separation distance between gas line and potable water main

Posted By Wendell Iwatsuru 12-30-2019 11:19 AM
Found In Egroup: Environment, Coasts, Oceans, & Infrastructure \ view thread
Past years---12" minimum Clear-Outside to Outside was sufficient. However, we have encountered recently, this last year, for major gas lines, (So. CA. Gas), 18". Best to ask an Engineer at the Gas Company. Some of the agencies have required wrapping the D.I. or enclosing and sealing (encasing) ...