Penetration in concrete wharf deck for potable water 2

How is anyone supposed to know?

A cored drilled hole is very smooth, but go at it with a jackhammer and it won't be.

No technical issue here...

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

Probably a good idea to use a sleeve to ensure your pipe is isolated from the warf cathodic protection system and that abrasion from potential warf/pipeline movements will not damage the pipe or its corrosion coating.

--Einstein gave the same test to students every year. When asked why he would do something like that, "Because the answers had changed."

Note that isolation from the warf CP system may also apply to your pipeline's pipe supports and hangers. Better to discuss that with a CP expert.

--Einstein gave the same test to students every year. When asked why he would do something like that, "Because the answers had changed."

You can use a non-metallic pipe sleeve.

Trumbull

If you want to anchor the pipe, you can use a link seal around it.