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Division of Drinking and Ground Waters Ground Water Quality Characterization Program


Water Quality Sampling


About the Ground Water Quality Characterization Program

The Ohio EPA is the designated state agency for preventing and addressing ground water quality problems. To help meet this responsibility, Ohio EPA characterizes ambient ground water quality conditions; identifies ground water contamination; determines cause and effect relationships; and recommends strategies for preventing contamination.


General Information



Ohio Geology

Water Quality Analyses

Clean Water Act Section 305(b) - Report on Ground Water Quality Specific Compounds

Ohio EPA logo

Contact the Division of Drinking and Ground Waters
Mailing Address: P.O. Box 1049, Columbus, OH 43216-1049
Street Address: 50 West Town Street, Suite 700 Columbus, OH 43215
Phone: (614) 644-2752 ~ Fax: (614) 644-2909 ~ E-mail
Emergency Contacts ~ Staff Contacts and Expertise ~ Electronic Mailing Lists
Emergency Response Hotline (800) 282-9378