Day 1502 and Always Something

When we first moved to Montana we did a pretty thorough home inspection. My husband flew in a friend who is residential contractor.

We didn’t need much remediation work. A bit of radon and we installed a state of the art water filtering system but otherwise everything from foundations to soil quality were looking good. But you can never be too sure things stay that way.

We’ve done some repairs and installations over the past two years and it would appear somewhere in there we must have had some water damage. We ran some mold tests and the reports are not good.

As we’d done so much testing before moving in we’d not done thorough assessment. It hadn’t seemed necessary. But as part of the new year’s rigorous “get a grip on autoimmune” push we did an ERMI test (done via dust collection) through an independent lab EnviroBiomics.

The Environmental Relative Moldiness Index (ERMI) test is a DNA-based method developed by the U.S. Environmental Protection Agency (EPA) to assess indoor mold contamination by analyzing settled dust in homes.

It uses mold-specific quantitative polymerase chain reaction (MSqPCR) to identify and quantify 36 mold species, which are divided into two categories: Group 1 (associated with water-damaged homes) and Group 2 (common indoor molds not linked to water damage).

The ERMI score is calculated by subtracting the log-transformed sum of Group 2 molds from Group 1 molds, providing a single numerical value to indicate the relative moldiness of a house.

Welp. Seems like we may have some water damage somewhere. We’ve got some theories from the last two years.

ERMI Score 18.3:
Places this bedroom in the higher range of mold contamination. Typically, an ERMI above 5 is already considered higher than average. A score of 18.3 signals a strong likelihood of hidden moisture issues or longstanding mold growth.

We also ran a HERTSMI-2 test on which we scored 20. That test is a bit more salient for my autoimmune conditions. And its results were not encouraging. Running that through ChatGPT’s new Deep Research.

This test is used to gauge risk for mold-sensitive or chronically ill individuals. A value over 15 strongly suggests that the environment may be unsafe for those with mold-related illnesses or sensitivities. Re-occupancy should be delayed until remediation and follow-up testing confirm substantially reduced mold levels.

We have to do remediation of some sort though we think it’s limited to the basement. But I’ll be staying upstairs for a while if this conclusion is sound. It’s always something.

Conclusion: The contamination is significant and poses a tangible health risk. Addressing it thoroughly is crucial, particularly given your household’s health concerns.