Drug Collection Sites Kahala Scroll down to find the location nearest to you! Back to Drug Collection Location List Kahala Newly Relocated Alert Text Hours may vary, SEE DETAILS Special Hours: Kahala Office Tower, 4211 Waialae Ave, Suite 200, Honolulu, HI 96816 Phone: 808-733-2410 Fax: 808-733-2412 Hours of Operation Mon - Fri: 6:00 AM to 4:00 PM Sat: 6:00 AM to 12:00 PM (Closed: 3rd Thursday of the Month from 12:30 PM to 1:30 PM) Toxicology Hours Mon - Fri: 6:00 AM to 4:00 PM View Map »