Certification of Drinking Water Laboratories

The Maryland Department of the Environment (MDE) maintains a State program for the certification of laboratories conducting analyses of drinking water compliance samples. In order to be eligible to analyze compliance samples under the Safe Drinking Water Act, laboratories must meet the minimum criteria specified by the United States Environmental Protection Agency (EPA) Manual for the Certification of Laboratories Analyzing Drinking Water, 5th edition, January 2005, and regulations put forth in the Code of Maryland Regulations (COMAR).

Contact Information

          Taj Goodlow
          Laboratory Certification Program
          Maryland Department of the Environment
          Water Supply Program
          1800 Washington Blvd., Suite 450
          Baltimore, Maryland 21230-1708
          Phone: (410) 537-3730
          Fax: (410) 537-3157

Certified Laboratories

Laboratory Certification Applications and Forms

  • Follow this link to access laboratory certification applications and forms.  Once on the page, the documents can be found under the section heading Drinking Water Laboratory Certification.

Law and Regulations


Public Drinking Water Sampler Certification 
Public Drinking Water Sampler Certification Seminar:  This certification assures the reliability of the Safe Drinking Water Act compliance samples submitted to state certified laboratories. Performing the required sampling and testing of public water systems is the primary means of evaluating the safety of the drinking water supply.

This certification is primarily for laboratory personnel, municipal and private water system operators and superintendents, and county and state health department staff.​