I think that's a June bug grub. I've been told they spend 3 years as a grub before turning into a june bug.
My guess for the hydrant is that it got damaged while backfilling with dirt or by frost pushing on it in winter.
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yep, scarab beetle of some sort, of which there are many kinds, june bugs being…several. just not enough common names to go around in a big group like beetles.
Dez Choi wrote: Found three of these guys while digging in the island hydrant.. what is it?
My first thought was a hornworm in some more juvenile growth stage. (Because of the fake eyes next to each leg.) A short internet search leads me to think that's wrong, and hornworms don't have a grub stage. Sorry. Hopefully the false eyes help with the ID.