Certified Laboratories

Certified laboratories analyze drinking water samples for the presence of specific contaminants to help public water systems demonstrate that their water meets health based standards. Ohio EPA's laboratory certification program ensures laboratories are able to perform accurate testing using specific methods which have been approved by U.S. EPA.



Questions?  Contact a member of the Laboratory Certification Section
By phone:  1 (614) 644-4245 or Email:  DWLabCert@epa.ohio.gov 


Currently Certified/Accepted Laboratories

Laboratories are listed in the attached PDF document.

Laboratory Certification

Obtaining Laboratory Certification

Laboratory Construction and Remodeling Requirements

Requirements for Analyst Certification

On-site Survey Requirements

Issuance of Laboratory Certification

Proficiency Testing

Drinking Water Proficiency Testing Requirements

Required Proficiency Testing Parameters

Approved Proficiency Test Providers




Submit applications via DWLabCert@epa.ohio.gov or mail to the following address (a hard copy is not required):
Ohio EPA Division of Environmental Services (DES)
Laboratory Certification Section
8955 East Main Street
Reynoldsburg, OH 43068




To Access Applications, Click on the Links Below:

  • Chemical (Limited and Standard) (Word) (PDF)
  • Cyanotoxin and Cyanobacteria Screening (Word) (PDF)
  • Trace Metals (Limited and Standard) (Word) (PDF)
  • Microbiological (Word) (PDF)
  • Pesticide-SOC (Word) (PDF)
  • Radiochemistry (Word) (PDF)
  • THM-HAA-VOC (Word) (PDF)
  • Out-of-State Acceptance (Word) (PDF)

Interim Authorization, Click on the Links Below:

  • MMO-MUG (SM 9223) Tests (Word) (PDF)
  • Plant Control Tests (Word) (PDF)

Fee Schedule

Information on the fees assessed for the evaluation and certification of laboratories is available in the Fee Schedule.

Ohio EPA Division of Environmental Services (DES)
Laboratory Certification Section

8955 E. Main St.
Reynoldsburg, OH 43068

Spangler, Julie Supervisor, HAB Certification Officer (614) 644-4222
Tom, Jennifer Office Assistant (614) 644-4245
Vasulka, Charles Laboratory Certification Officer (614) 644-4266