peltier not cooling anything
Hello I am trying to use 30 "tec-1 12706" peltiers along with my geothermal ground loop to cool machines.


This is a bad idea.  At kilowatt class loads, a simple compressor setup will be cheaper and more effective because the coefficient of performance of a compressor is several times higher than a TEC, meaning that vastly less energy must be supplied and less heat removed.  It will probably also be cheaper as you can often find working compressor systems in old AC units or refrigerators available for free, which as a hobbyist you may find appealing. 


  The tec-1 get cold by them selves but not as a thermally coupled unit


Have you calculated what the expected temperature differential should be?  A 1 degree drop may be reasonable given the small capacity of most TECs and the large number of things you mention hooking up to the loop.