Credible Data - References

Credible Data is a program that classifies surface water monitoring performed by watershed groups, state agencies, schools, local volunteers and other organizations. Ohio EPA uses the data submitted under the program in ways prescribed by State law.

Lab Accreditation

All laboratories that perform analysis under a Level 3 study plan must be accredited, and participate in annual proficiency testing.

Accreditation by one or more of these organizations is acceptable:

  • United States Environmental Protection Agency
  • Ohio EPA Voluntary Action Program
  • National Environmental Laboratory Accreditation Program
  • American Industrial Hygiene Association
  • International Organization for Standardization
  • any other governmental or private accrediting authorities that apply accreditation standards consistent with and equivalent to the organizations above