Haw. Code R. § 6-77-138 - Remedial measures: general
(a) Each segment of
metallic pipe that replaces pipe removed from a buried or submerged pipeline
because of external corrosion must have a properly prepared surface and must be
provided with an external protective coating that meets the requirements of
section 6-77-127.
(b) Each segment
of metallic pipe that replaces pipe removed from a buried or submerged pipeline
because of external corrosion must be cathodically protected in accordance with
this subchapter.
(c) Except for
cast iron or ductile iron pipe, each segment of buried or submerged pipe that
is required to be repaired because of external corrosion must be cathodically
protected in accordance with this subchapter.
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