Our Staff
Laurel Fischer Mueller, President, Certified Professional Soil Scientist and Soil Classifier (CPSS/CPSC), Geomorphologist, SEO

Randy A. Rosbach, Designer, Cartographer, SEO

George W. Mueller, Project Manager, SEO
George is our project manager, serving as your first point of contact for inquiries or scheduling. He has manned the phone and project calendar at Soil Services since 1985. George is also a soil science technician, responsible for managing field soil testing and survey. Prior to Soil Services, George worked in the irrigation industry in Oregon, supplying pipe and pumps. He holds a B.A. degree in Sociology from University of Montana. George is a licensed Sewage Enforcement Officer and is a Pennsylvania Septage Management Association (PSMA) certified Wastewater Treatment Inspector. George is an active member of PASEO, PAPSS, and PSMA, and NSCSS. George volunteers as an EMT and Firefighter with Eldredsville Volunteer Fire Company.
Robert Z. Bressler, Soil Scientist, SEO
Robert is our staff Soil Scientist. Bob received his B.S. in Environmental Resource Management with a specialization in Soil Science and a minor in Watersheds and Water Resources from Pennsylvania State University in May, 2013. Prior to joining Soil Services, his experiences include agronomic support at the PSU Plant Pathology Research Farm and landscaping. Bob assembles sewage facilities planning modules, reports and permit applications; describes soil profiles and surveys site information; collects GPS data for designs and soil mapping reconnaissance; delineates wetlands; and conducts sewage system maintenance. He is a member of Soil Science Society of America (SSSA) and Pennsylvania Association of Professional Soil Scientist (PAPSS). Bob volunteers as a Firefighter with Picture Rocks Volunteer Fire Company.
David V. Linahan, P.E., Water & Wastewater Operator, SEO
David is our sanitary engineer, providing oversight and leadership for larger projects, as needed. He is a Pennsylvania licensed Professional Engineer with a Bachelor (1980) and a Master Degree (1983) in Civil Engineering from Villanova University. He is also a licensed Water and Wastewater Systems Operator and a certified Sewage Enforcement Officer (SEO) in Pennsylvania. David began his professional career in 1980 as a Construction Project Engineer for the City of Philadelphia Water Department overseeing multimillion dollar wastewater treatment construction projects near Philadelphia. In
1989, David joined Yerkes Associates, were he headed the Sanitary Engineering Group and was promoted to Senior Vice President. At Yerkes, he oversaw construction and start-up operations of Concord Township’s Central Sewer Project, designed Willistown Township Pressure Sewer systems, and designed the first community drip dispersal system in Pennsylvania. In 2008, David started his own firm, David V Linahan, PE LLC and co-authored “Alternative Sewer Systems” the WEF Manual of Practice No. FD-12. David is a member of the Pennsylvania Association of Sewage Enforcement Officers (PASEO) and the National Onsite Wastewater Recycling Association (NOWRA), serving as Ethics committee chairman of 2000-2002 and writing the NOWRA’s “Code of Ethics”. In 2002, David founded Pennsylvania Onsite Wastewater Recycling Association (POWRA), serving two terms as President.
Teresa Torluccio
Terri is our office manager. She manages Accounts Payable and bookkeeping, makes PA One-Calls, tracks O&M service for Mountain Wastewater Management, and assists with proposals. Every Spring, Terri also runs “The Greenery,” her own greenhouse business. Terri volunteers as Secretary, EMT, and Fire Police for Eldredsville Volunteer Fire Company.
