List of Contributions

Contact Details

Contact information, job title, education, and license are populated by the ASCE Membership database. You can edit your account here. Please allow 12 hours for the changes to appear in ASCE Collaborate. 

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


Contributions

1 to 1 of 1 total

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) ...