Laboratory Certification Contact Information

Todd Crawford Branch Supervisor

Phone: (919) 745-4366

Mailing Address:

NC DEQ/WSS/Laboratory Certification Branch

1623 Mail Service Center

Raleigh, NC 27699-1623


Have you signed up to receive automatic email notices of changes to policies, regulations and resources pertaining to the NC Wastewater/Groundwater Laboratory Certification program that could have an impact on your day-to-day operations?

If not, go to, include your name, email address and choose “DWR.Lab_Cert (Laboratory Certification Updates)” to subscribe to the list.

Auditor Position Telephone/Extension
Anna Ostendorff Technical Assistance and Compliance Specialist (919) 745-4368
Beth Swanson Technical Assistance and Compliance Specialist

Primary: (984) 220-5439

Alternate: (919) 745-4369

Jason Smith Auditor - ARO/WSRO/MRO (828) 424-9477
Jill Puff Auditor - WiRO/RRO

Primary: (984) 220-4946

Alternate: (919) 745-4373

Tonja Springer Auditor - FRO/RRO/WSRO

Primary: (984) 220-3646

Alternate: (919) 745-4370

Thomas Halvosa Auditor - WaRO/RRO (984) 220-4016 
Michael Cumbus Auditor - WSRO/MRO

Primary: (984) 220-5406 

Alternate: (919) 745-4372

Each Chemist manages out-of-state labs as well.

If you see something that should be corrected or have any questions about the content of the site, contact the site administrator.