Here's one for you paver aces....the mini-creta wall that I mentioned in an earlier thread must be put in above the exact spot where the gas and water service run into the house. I have done a small sample dig to find out how deep these lines run. They are about 18-20 inches underground, meaning only about 6-8 inches below the bottom of the base for my wall. My question, is it safe to compact above utilities with so little room? Will I risk damage to the service pipes? Am I just paranoid????