Certified Laboratory Listings
Lists of certified laboratories may be found at the following links. These lists are updated annually. If an error is found or if you have questions, contact the site administrator.
| Laboratory Type | List | Last Updated |
| Commercial | Laboratories In-state | 06/01/2013 |
| Commercial | Laboratories Out-of-state | 06/01/2013 |
| Commercial | Laboratories Certified for EPH Analysis | 06/01/2013 |
| Commercial | Laboratories Certified for VPH Analysis | 06/01/2013 |
| Commercial | Laboratories Certified for Hg by EPA 1631 | 06/01/2013 |
| Commercial | Laboratories Certified for Animal Waste Nutrient Management Analysis | 06/01/2013 |
| Commercial | Laboratories Certified for E. coli Analysis | 06/01/2013 |
Commercial
| Mobile Commercial Laboratories | 06/01/2013 |
| Municipal and Industrial | Laboratories Operated by an Industry, Municipality or Other Local Government | 06/01/2013 |
| Field Commercial | Laboratories Certified to Analyze only *Field Parameters for a Fee | 06/01/2013 |
| Field Municipal and Field Industrial | Laboratories Certified for only *Field Parameters | 06/01/2013 |
*Field parameters include: pH, DO, Total Residual Chlorine, Temperature, Specific Conductance and Settleable Residue. Note: Commercial, municipal, industrial and other laboratories may also be certified to analyze field parameters in addition to the non-field parameters under their non-field certification.
The certification status of a laboratory may change at any time. For questions about the certification status of a laboratory or about the scope of accreditation, contact this office at (919) 733-3908 or contact the laboratory directly.