HomeMy WebLinkAbout2017-12-04-Non-Quantifiable_Amount_of_Dalapon_Detected_S.Kona -- press release
DEPARTMENT OF WATER SUPPLY COUNTY OF HAWAI`I
T, SUITE 20 HILO, HAWAI`I 96720
TELEPHONE (808) 961-8050 FAX (808) 961-8657
December 4, 2017
Time: 12:00 pm
TRACE LEVELS OF DALAPON DETECTED IN SOUTH KONA WATER SOURCES
Water is safe to drink
threat and will
ensure ongoing water sample testing.
In November 2017, during routine compliance water quality monitoring, trace levels of Dalapon were
As required, the public is to be notified whenever any previously undetected chemical
contaminant is found in a groundwater source.
The amounts of Dalapon discovered were very low, such that the laboratory equipment was unable to
quantify the exact concentration. Therefore, the November 2017 Dalapon results have been recorded as
non-quantifiable (NQ), which would place the concentration of the Dalapon between 1.0 to 2.5 micrograms
per liter or parts per billion (ppb). The levels of Dalapon detected was significantly lower than the U.S.
Environmental Protection Agency (EPA) maximum contaminant level (MCL) of 200 micrograms per liter
or ppb, and therefore does not pose a risk to public health.
Dalapon is an herbicide used to control grasses in a wide variety of crops, including fruit trees, beans, coffee,
corn, cotton, and peas. It is also registered for use in a number of non-crop applications such as lawns,
drainage ditches, along roadways, and in industrial areas. Per the EPA and DOH, e people who drink
water containing Dalapon well in excess of the MCL over many years could experience minor kidney
.
, , are backup wells in the South Kona Water System.
During normal operationsare the primary sources.
Again, the trace levels of Dalapon were significantly lower than
DWS will continue to work together with the DOH and plans to increase monitoring above what is
currently required by federal and state laws.
Please be assured that the South Kona Water System continues to be in compliance with all federal and
state standards for drinking water.
Should there be any questions please contact the DWS at the contact information below.
Phone: (808) 961-8050
Email: dws@hawaiidws.org
The Department of Water Supply is an Equal Opportunity provider and employer