Who We Are
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Gavin G. Guarino, PE
B.S., mining engineering, Pennsylvania State University.  Gavin is a registered professional engineer in the Commonwealth of Pennsylvania and the States of Maryland and Ohio.

Shawn C. McDonald, PE, CPESC
B.S., civil engineering technology, University of Pittsburgh at Johnstown. Shawn is a registered professional engineer in the Commonwealth of Pennsylvania. He is also a Certified Professional in Erosion and Sediment Control.

Samuel H. Baughman II, MS, PG
B.S., geology, University of Pittsburgh at Johnstown; M.S., hydrogeology/engineering geology, University of Pennsylvania, Philadelphia.  Sam is a registered professional geologist in the Commonwealth of Pennsylvania and Virginia and the State of Delaware.

Michael R. Pugh, PLS
A.A.S. Applied Sciences, Specialized Technology, Triangle Tech. Mike is a registered Professional Land Surveyor in the Commonwealth of Pennsylvania.


Nathan E. Garlitz, PE
B.S., civil engineering technology, Point Park University; A.A.S. drafting and design, Pittsburgh Technical Institute.  Nathan is a registered professional engineer in the Commonwealth of Pennsylvania.

Chad M. Phillips, SIT
B.S., surveying engineering, Pennsylvania State University.  Chad is a certified surveyor-in-training.   
Civil and Mining Engineering Services
G Force Engineering Services, LLC
  • Mine engineering
  • Mine permitting
  • Mine surveying
  • Civil engineering
  • Site design
  • Structural steel & concrete design
  • Municipal plans
  • Geotechnical services
  • Wetland delineation
  • Mapping
  • Storm water management plans
  • Erosion and sedimentation control plans
  • Roadway management plans
  • Oil & gas well surveys
  • Construction surveys
  • Topographic surveys
  • Survey grade GPS surveys
  • As built surveys
  • Water Treatment
  • Treatment Systems Management


G Force Engineering Services, LLC


Indiana, PA Office
1630 Philadelphia Street
Indiana, PA  15701
PHONE:   (724) 801-8169
FAX:        (724) 801-8589


Central City, PA Office
7582 Lincoln Highway
Central City, PA 15926
PHONE:   (814) 754-3183
FAX:        (814) 754-3187