CaliforniaGeo is pleased to offer a series of online regular meetings we call The Underground  for registered participants.  Our productions will be offered using our Zoom platform, lasting approximately one hour, Noon-to-1pm Pacific Time.  The topic may be an issue, a technique, or a technology—or how certain policies and regulations may affect those.

We will feature a host and presenter, or a panel of two-to-three who will make a short presentation on the subject and then take live or chat-based questions from the audience.  These will be free for CaliforniaGeo professional and affiliate members, and $10 for others. Membership will be verified after registration before access is provided.  Participation is limited.


August 18, 2021

  Terry Proffer, Geothermal Manager for Major Geothermal, Inc.

“Geo-Janitorial” — Problematic GSHP Installations; Forensics; Solutions; & Lessons Learned

KTM Rally_9-13.15-2019_CP_IMG_2828_crop1 - Version 2.jpgProffer is a Geologist

IGSHPA Accredited Installer #12131-994
IGSHPA/NATE Certified Installation Instructor #T1063-496
AEE Certified GeoExchange Designer #16
IGSHPA CGD Instructor
Colorado Division of Water Resources 

Closed Loop Certification #GT-13 

ClimateMaster Certified Installation Instructor 

Terry will share examples of problematic GSHP installations ranging from easily resolved to catastrophic failures.  He’ll show how his focus on forensics helps reveal the best corrective actions

Terry frequently serves as a third party design evaluator for geo system designs and sometimes testifies in court actions covering system performance disputes.  When he’s not busy with this, he’s designing simple, effective, and bulletproof geo heat exchange and control systems that won’t require a geo janitor.  Terry has been a board member of CaliforniaGeo since 2016.