Northern Analytical Services, LLC. (NAS) is a licensed* environmental consulting firm located in northern Michigan that serves the Midwest United States, including,Michigan Ohio, Illinois, Indiana and Wisconsin.

NAS provides consulting and training services related to the asbestos, lead and mold industry.  A few of the services we offer include hazardous building material inspections, AHERA Management Plans, preparation of abatement bid specifications, indoor air quality testing and training. 

NAS was founded by John Rehkopf in 2003. After several years of working as a hazardous materials consultant with another company, John decided to move back to his hometown area in Michigan and offer environmental consulting services to Michigan based businesses, industries and organizations.

Today NAS serves the entire State of Michigan and surrounding areas.  Our staff includes several industrial hygienists who are trained and accredited to perform the environmental services we provide.