Contact

Mr. Michael Paul Callahan
Soil Scientist

Palmyra, PA 17078-3817 UNITED STATES

Employment History

• Rettew Associates, Inc.
  
• Rettew Associates, Inc.
  

Membership

• Member
• Soil Science Society of America, 25 Years

Past Membership

• American Society of Agronomy, 2 Years

Certifications Held

• Certified Professional Soil Scientist

Education History

• Master of Science (MS), Pennsylvania State University, 2004, Soil Science
  
• Bachelor of Science (BS), Pennsylvania State University, 2001, Environment Soil Science
  

Divisions of Interest

• SSSA Soil & Water Management & Conservation Division
  
• SSSA Practicing Professional Soil Scientists Division
  
• SSSA Soil Education and Outreach Division
  
• SSSA Pedology Division
  

• SSSA Wetland Soils Division
  
• SSSA Soils & Environmental Quality Division
  
• SSSA Urban and Anthropogenic Soils Division
  

Committee Service

• S - Soils Certifying Board - Pennsylvania, Member, 2025-01-01 - 2027-12-31
  
• S - Soils Certifying Board - Pennsylvania, Member, 2021-07-01 - 2024-12-31
  
• ACS - Early Career Members Committee, Member-SSSA, 2005-11-01 - 2007-10-31