service areas include Apex, Durham, Raleigh and surrounding areas

Ms. Dorothy M Robson (Principal Scientist/Owner) founded the company in 2012 as a company to help customers find an Inspector that does  assessments and not remediation. My mission is to provide accurate information for you whether it requires remediation or not and provide you with recommendations that are specific to your needs.

Ms. Robson lives in Apex, North Carolina and has over 17 years experience performing indoor air quality assessments (IAQ) for mold, asbestos, lead, radon, volatile organics, and other indoor contaminates.  Assessments include site observations, collecting real time measurements, air, soil and surface sampling, lab data discussions, and recommendations. Sites included residential, retail, and manufacturing.

Ms. Robson has over 17 years in the Raleigh, Durham, triangle area conducting Environmental Site Assessments, which include site inspections, review of public records, historical research, prepared and reviewed reports. DRH also has over 17 years conducting NEPA Assessments, which included site inspections, historical national registry assessments, limited biological and ecological assessments, and prepared limited NEPA Checklist reports. Sites included are telecommunication facilities, HUD buildings, and military training facilities.

 Training and Certifications:

  • Certified Mold Inspector (CMI)
  • Certified Environmental Specialist (CES)
  • NC Asbestos Inspector License #12385
  • NC Lead Inspector # 110212
  • OSHA 40 Hour HAZWOPER (1999) §  Annual OSHA 8 Hour HAZWOPER Refresher 


  • BS In Environmental Science and Geography (SUNY AT BUFFALO)
  • MA In Organizational Management (Forbes School of Business, Ashford University) 


  •  Environmental Assessment Association (EAA)
  • North Carolina Association of Environmental Professionals (NCAEP)
  • National Association of Professional Women (NAPW)

DRH Environmental Services LLC


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