First, scan the following abstract: https://arxiv.org/abs/astro-ph/9910192
This is probably the most ideal place on planet Earth for conducting a Hum hearing test. Entering the testing room underneath that much earth and electromagnetic shielding provides an excellent environment for eliminating several hum hypotheses.
Our project at http://www.thehum.info has achieved international recognition now, and if you feel able to write a serious letter on my behalf – especially if you have some scientific or medical training – then do so. Ask for permission for a group of volunteers to access the chamber. I’m sure the international media would be interested, which would provide a win-win situation for the group running the room as well as those of us working to solve the Hum.
I’ll mention again that organized effort is the only method of side-stepping the profit motive that drives most university and serious private labs. But it takes time and effort, and I can’t do it all by myself. I need your help in reaching out to people who can assist us.