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2015 WGA Annual Conference

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Important Information About Heat Exchange Drill Hole (Geothermal) Licensing



Information about geothermal licensing is now available on the DNR's website. 

To be eligible to take the heat exchange driller exam, completed application forms (Form 3300-300) must be received by 4:30 PM on Friday, October 17, 2014.  Form 3300-301 must also be submitted to document drilling experience in Wisconsin. Drillers seeking reciprocity for licensing in another state must also complete form 3300-302. 

Here is the DNR link for geothermal systems:  http://dnr.wi.gov/topic/wells/geothermal.htmlThe application forms can be found here:

·  Individual Heat Exchange Driller License Application (3300-300) [PDF]

·  Experience Voucher For Individual Heat Exchange Applicant (3300-301) [PDF]

·  Out-of-State Individual Heat Exchange Driller License Application (3300-302) [PDF]

All applicants must take the written exam. You will be notified of your eligibility to take the exam along with further instructions regarding study materials, fees, exam and other logistics.  The test related to the geothermal license is currently under development by the DNR.  It is expected that it will be ready for the Wisconsin Water Well Association's (WWWA) Groundwater Conference and other WWWA/DNR continuing education sessions early next year.  The test will be an open-book examination.

The effective date of the licensing law is April 1, 2015.  The drilling of vertical heat exchange drill holes after April 1, 2015 will require a license to do that work and a water well license alone will not suffice.  You must hold a heat exchange drill hole license to do this work. 

Questions have been raised about the eligibility requirements.  In time, eligibility to write the examination will be based on a review of the past two years experience with geothermal and/or grouted wells.  Initially, however, the look-back period will be much longer than two years. 

What all of this means is that drillers intending to apply for the geothermal license should do so NOW.  By applying now, you can meet all of the deadlines to become licensed prior to the April 1 effective date.  More than that, you will have the benefit of an extended period to demonstrate prior experience with geothermal or grouted wells.  Even if you have questions about the applicability of your prior experience with geothermal drill holes or with grouted water wells, we suggest that you make application NOW and work with the DNR to sort through that experience and determine your eligibility. 

For HVAC contractors that subcontract the construction of heat exchange drill holes, you will need to be certain that your subcontractors are properly licensed by the effective date of the licensing requirement.  Now is the time to have that discussion so they can apply to take the examination in time to complete the licensing process. 

If you have any questions, please contact the DNR's Randell Clark ( This e-mail address is being protected from spambots. You need JavaScript enabled to view it ) or WGA's Executive Director Jeff Beiriger ( This e-mail address is being protected from spambots. You need JavaScript enabled to view it ).






Wisconsin Geothermal Association

2015 Annual Conference

Wednesday/Thursday - February 18-19


Holiday Inn Hotel & Convention Center

Stevens Point, WI


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Our mission
The mission of the Wisconsin Geothermal Association is to responsibly advance the geothermal heating and cooling industry in Wisconsin.

About us
The Wisconsin Geothermal Association (WGA) is the unified, professional consortium (non-profit) of contractors, manufacturers, design engineers, utilities, educators and others dedicated to the promotion and growth of Wisconsin’s geothermal heating and cooling industry. The WGA encourages consumer and contractor education, and fosters a paradigm of responsible business practices by all its members.

Geothermal systems have been proven to deliver excellent occupant comfort in this region, while saving energy and reducing emissions. The systems take advantage of the earth's constant year-round ground temperature to provide heating, cooling and hot water in a variety of applications. One of our members in your region can assist you in utilizing this efficient technology. Find a member in your area.




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