About Us

Agri-Waste Technology, Inc. (AWT) is a full-service Professional Engineering and Consulting Firm, located in Raleigh, North Carolina. For over two decades, AWT has provided environmental and land development services to agricultural, industrial, municipal, and residential clients nationwide.

AWT strives to meet and exceed all client expectations. Our professional staff works one-on-one with each client to determine his/her goals and constraints. From there, AWT can provide the most effective and cost-efficient services tailored to the client’s specific needs.

If you put AWT’s experience to work for you, we guarantee you will appreciate the difference that one-on-one service makes.

Key Personnel

• Jeffrey Vaughan, Ph.D., CPAg/SSc/CCA, L.S.S.
  President/Senior Soil Scientist/Agronomist
  jvaughan@agriwaste.com
  B.S. Virginia Polytechnic Institute and State University, Agronomy
  M.S. Virginia Polytechnic Institute and State University, Crop and Soil Environmental Sciences
  Ph.D., North Carolina State University, Soil Science

  Dr. Vaughan has served AWT since March of 1998 as the team leader of the Agronomy / Soil Science division. Dr. Vaughan is a Certified Crop Advisor, Certified Professional Agronomist, Associate Professional Soil Scientist, Licensed Soil Scientist, and a Subsurface Water Pollution Control System Operator. Dr. Vaughan is a member of the American Society of Agronomy, Soil Science Society of America, and the Soil and Water Conservation Society.

  Dr. Vaughan’s responsibilities include soils evaluations for septic system (residential and commercial) suitability, septic system inspections, wetland delineations, residential and commercial septic system designs and the verification of offset projects, which include no-till, grassland and rangeland.

• Chris Mosley, P.E.
  Vice President, V/V Director
  cmosley@agriwaste.com
  B.S. North Carolina State University, Biological and Agricultural Engineering
  M.S. Purdue University, Biological and Agricultural Engineering

  Mosley joined AWT in September of 2000 and is a registered Professional Engineer in the states of North Carolina, South Carolina, Alabama, Ohio and Texas. Mosley is also a NRCS TSP in North Carolina, South Carolina, Alabama, Georgia, Indiana, Kentucky, Michigan, Minnesota, Ohio and Wisconsin and is a North Carolina Technical Specialist. Mosley’s main responsibilities include: nutrient management planning, engineering design and specifications for commercial and residential septic systems, permitting, irrigation planning, stormwater design, sewer design and sediment and erosion control design, irrigation system management and oversight of the carbon offset validation/verification program.

• Kevin Davidson, P.E.
  Senior Project Engineer
  kdavidson@agriwaste.com
  B.S., M.S. North Carolina State University, Biological and Agricultural Engineering

  Davidson joined AWT in January of 1995 and is a registered Professional Engineer in the states of North Carolina, Virginia, Iowa and Oklahoma. Davidson’s main responsibilities include: engineering design and specifications for commercial and residential septic systems, permitting, irrigation planning, stormwater design, sewer design, sediment and erosion control design and assisting with carbon offset verification.

• Hal Langenbach, P.E.
  Senior Project Engineer
  hlangenbach@agriwaste.com
  B.S. North Carolina State University, Biological and Agricultural Engineering

  Langenbach joined AWT in July of 1995 and is a registered Professional Engineer in the states of North Carolina, Oklahoma, Illinois, Wisconsin and Kentucky. Langenbach is also certified as an NC Technical Specialist, NCSU Stormwater BMP Inspector, a NPPC Environmental and Odor Assessor and a NRCS Technical Service Provider (TSP) in several categories. Langenbach is also a Team Leader of verification services for carbon credit projects involving renewable energy and agricultural methane.  Langenbach has a wealth of experience related to the animal feeding industry including: waste system design, nutrient management planning, irrigation planning, site inspections and training. Langenbach’s additional responsibilities include: permitting, annual reporting, stormwater BMP inspections and design, alternative onsite wastewater design and carbon offset verifications and consulting.

• Lisa Tilley
  Office Manager/Bookkeeper
  ltilley@agriwaste.com

  Tilley joined AWT in February of 2009 as the Office Manager/Bookkeeper. Tilley received her undergraduate degree from Meredith College in Raleigh and her master’s degree from the University of North Carolina at Chapel Hill. Tilley’s main responsibilities include: scheduling site visits / inspections, tracking accounts payable and receivable, and coordinating office operations to ensure organizational effectiveness. She is generally the first point of contact for services and will make sure clients are appropriately connected.

• Chris McGee, LSS
  Associate Agronomist/Soil Scientist
  cmcgee@agriwaste.com
  
  
  McGee joined the AWT team in October 2005.  McGee received his B.S. in Environmental Science with a concentration in Soil Science in 2006 from North Carolina State University.  McGee is a NCOWCICB Certified Inspector and a NC Licensed Soil Scientist.  His primary roles include:  Soil & Site Evaluations, On-Site Wastewater System Inspection & Design, Verification of offset projects, Environmental Testing, Nutrient Management, & Land Application Planning.
• Julie Peele
  Environmental Technician/GIS Specialist
  jpeele@agriwaste.com

  Peele is an Environmental Technician and GIS Specialist. Peele received her B.S. with a concentration in Environmental Studies from the University of North Carolina at Wilmington in 1997. Peele completed training in Wetland Determination and Delineation and earned her certification in Intermittent and Perennial Stream Identification for Regulatory Applications and Introduction to ArcView. Peele’s main responsibilities include: obtaining permits, delineation of jurisdictional wetlands, writing Comprehensive Nutrient Management Plans (CNMP), assisting with carbon credit verification and overall technical support for the senior project engineers.

• Sloan Griffin
  Soils Technician
  sgriffin@agriwaste.com

  Griffin is a Soils Technician for AWT. Griffin received his B.S. in Agronomy with a concentration in Soil Science from North Carolina State University and is currently pursuing his M.S. in Soil Science. In 2007, Griffin became a NC Soil Scientist in Training and will continue to advance under the guidance of the soil science/agronomy division. Griffin’s main responsibilities include: well and septic inspections, soils evaluations, septic system drainfield layouts, and delineation of jurisdictional wetlands.