Separate ground for dedicated line

dedicated lines are terrific, dedicated grounds are not, if there is a problem on this line of any sort all the overload will be dumped to your equipment or you. the local power companies ground is the most reliable and the sound will not be an issue

Find your breaker box. You'll find the pole ground there. If you want to drive a ground in your crawl space, make sure it is of the correct diameter and depth specified by your local code. It would work find.
My home uses below ground wiring but there is a rod by the house where the power comes up to the meter from the ground. Check around, you've got a meter somewhere.
Your neutrals are tied to pole ground back in the box on the neutral buss. All of your bare coppers from you home are there also.
I honestly don't think you will accomplish a lot by using a ground rod, however. Use a isolated ground recepticle, however, of hospital grade(preferably a Hubble)

Hi Stephen,

Don't run the grounds the way you described. If you ad an extra ground rod do it at the main service. Make sure you bond the new ground rod to your existing ground rod. Two ground rods are a bit much IMO. Feel free to research some of my tech talk threads for helpful hints on dedicated circuits. Sean, others and myself have discussed this subject more than once. I think we covered every possible scenario. My suggestions stem from over 20 years as an Electrician.

Thanks guys! I will skip the extra ground. There has been mention of using sheilded belden cable for a dedicated line. I was wondering how the sheild is connected: on one end to ground?