Good advice. They could test microbials themselves using a colilert test. The system costs about 6 USD per sample and does not require a micro laboratory. They should get a scan for ions of potential natural geological source.
Published by Joseph Cotruvo, President at Joseph Cotruvo & Associates, Water , Environment and Public Health
Good advice. They could test microbials themselves using a colilert test. The system costs about 6 USD per sample and does not require a micro laboratory. They should get a scan for ions of potential natural geological source.