The Hawaiʻi County Department of Water Supply (DWS) reports that additional follow-up testing of the ‘Ōla‘a-Mountain View Water System again showed no detection of 1,2,3-Trichloropropane (TCP), verifying the water remains safe to drink.

TCP was not detected in a water sample collected from ‘Ōla‘a booster Station #3 on October 2. This laboratory test result, received October 16, reconfirms a September test result that also showed TCP was not detected in the public water supply and further assures DWS’ tap water is safe to drink.

In early September, the Hawai‘i Department of Health (DOH) reported that trace levels of TCP that were well below its maximum contaminant level (MCL) had been detected in a water sample collected from a hose bibb located on DWS property and not accessible by the public.  DWS replaced the suspect hose bibb and has since been notified that TCP, a manmade chemical previously used during the plantation era, was not detected in any of the follow-up water quality samples.

Water-quality reports, conservation tips, and other helpful information can be found on the Department’s website, www.hawaiidws.org.