The National Center for Water Quality Research operates all year. Our staff members are available to answer your questions pertaining to water quality and sample collection and processing.
Visit our staff directory, if you need to contact a specific staff member.
Monday – Friday - 8:00 am to 4:30 pm (Eastern time)
(Note: We are closed on major holidays, the day after Thanksgiving, and December 24-January 2.)
419-448-2198 or 800-925-9250 Ext. 2198
National Center for Water Quality Research
310 E. Market St.
Tiffin, Ohio 44883
419-448-2345 (Attn: NCWQR)