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Third Party Organizations for Closed Loop Well Contractors

These are approved 3rd Party Organizations that can provide certification to closed loop well contractors.

Illinois Association of Groundwater Professionals (IAGP)

PO Box 210
Stockton, IL 61085

Phone: 815-973-3000


Geothermal Alliance of Illinois (GAOI)

PO Box 3787
Springfield, IL 62708

Phone: 217-971-3533

International Ground Source Health Pump Association (IGSPHA)

Last Updated: October 2014