This freshly re-designed informational site is intended to serve as a forum through which our consortium of expert consultants and Partner firms and organizations may share insights and opinions with any who might benefit. All of the featured contributors are recognized and vetted experts in their respective fields. However, the positions and opinions expressed herein are those of the authors and do not necessarily reflect those of the staff or management of CASTCorp International.

Categories and topics open for discussion by our consultants, investigators and subject-matter experts include:


Monitoring Radiation Levels – Around the Clock… Around the Globe

Following the tsunami and resulting nuclear accident at the Daiichi nuclear power plants at Fukushima (Japan) in March of 2011, CASTCorp International established a radiation monitoring station at its corporate office in north San Diego County. Our station is located approximately 30 air miles southeast of the recently closed SONGS (San Onofre Nuclear Generating Station). Our station is part of the group, the largest worldwide network of independent, non-government-supported individuals and businesses dedicated to monitoring environmental radiation levels. Operated by Minerlab, LLC, of Prescott, Arizona, the network is accessible to the public via the internet and provides live updated information from each station.

The Geiger counter at our monitoring station samples indoor and outdoor background radiation levels. It is capable of detecting alpha, beta, gamma and x-ray radiation. Levels are recorded in CPM’s (counts per minute). The equipment is calibrated in such a way as to provide easy conversion of CPM’s to milli-rems (U.S. standard), or to micro-sieverts (international standard). For reference purposes, the average post-Fukushima radiation level at our station is 13 CPM. In our network, any spike in CPM above “99” generates a network-wide alarm and any extended elevation in CPM (15 minutes or longer) at or above that level prompts an investigation as to the source, the results of which are reported on the site. This information is provided as a free public service and we encourage you to keep abreast of radiation levels in your area by visiting