Division of Drinking and Ground Waters Technical Guidance Manual Archive

ARCHIVED: Technical Guidance Manual for Hydrogeologic Investigations and Ground Water Monitoring (TGM)

 

This page provides links to older versions of the TGM are provided in the event that they are applicable to a particular program rule. For example the TGM is cited the following rule; thus, the TGM version available at the time of the rule was promulgated is associated with that rule.

Archived TGM Documents

 

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

);