Trace levels of selenium detected in Kaunakakai water system
Routine water quality testing recently identified trace levels of selenium in the Kaunakakai water system, which serves the Kaunakakai area of Molokai, according to the Maui County Department of Water Supply. Selenium is a naturally occurring mineral element found in soil, rocks and mineral deposits. Small amounts can enter drinking water through the natural erosion of these mineral deposits. The initial detection was found in samples collected on July 15. Follow-up testing of a sample taken Aug. 11 confirmed selenium levels of 2.3 to 2.4 micrograms per liter — well below the ...