COUNTY OF KAUAI DEPARTMENT OF WATER
\ March 29, 2016 /
County of Kauai Department of Water Letter to Gary Hooser in Response to 2nd Followup Request for Testing Chlorpyrifos
"On March 9, 2016, after the release and recommendations of the Joint Fact-Finding Group Draft Final Report and in response to public concerns, the DOW decided to test for of our water sources that would be most susceptible to chlorpyrifos. These sources include two sites on the west side- Kapilimao, which is located in the Mana plain where a lot of agricultural activity occurs, and Waimea Well B, which is the primary water source for the Waimea community. The other two sites include Kilohana Wells A and B, which is located in an active agricultural area in Lihue, and the Waiahi Water Treatment Plant located at the Kapaia Reservoir. The Waiahi Water Treatment Plant is the DOW's only surface water source and would be most susceptible to contamination by drift.
In addition to testing these four water sources the DOW requested that the lab, Eurofins-Eaton Analytical, review reports from the DOW's last round of testing Phase 2-5 as required by EPA in November 2015 for all active sources. We asked the lab to determine whether there were any detectable levels of unreported EPA method 525 pesticides/herbicides, including chlorpyrifos, in the water sources of Waipao, Paua, Waimea A and Waimea B, which services Kekaha and Waimea residents. The lab screens for all EPA method 525 pesticides/herbicides, including chlorpyrifos, but does not provide a report unless detectable levels are found. In order to assuage any concerns, we asked for this additional review.
On March 24, 2016, we received all tests results and reports from the lab. The results from the March 9, 2016 testing of the four sources showed that there were no detectable levels of any of the 525 pesticides/herbicides, including chlorpyrifos. These results are attached for your review."
Download the full response letter and lab test results: