The Guam Environmental Protection Agency (GEPA) is announcing a change to the operating hours for its dedicated dieldrin hotline.

Effective Tuesday, Oct.  21, 2025, the GEPA dieldrin hotline, 671-888-4342, will operate from 8 a.m. to 5 p.m., Monday through Friday. 

This adjustment reflects the current volume of public inquiries.

For additional resources and information regarding dieldrin, individuals are encouraged to visit GEPA’s website at epa.guam.gov, or the Guam Waterworks Authority’s (GWA) website at guamwatersafety.com.