As we celebrate our business anniversary, what better way to recognize this milestone and announce; TTL has acquired a NEW GEOPROBE 7822 rig. This advanced Geoprobe will continue to help TTL provide quality, responsive, cost –effective consulting environmental and geotechnical drilling services. The 7822DT Geoprobe is capable of Air Rotary, Rock Coring, Direct Push and [...]

I-75 Widening from Perrysburg to Findlay, Ohio

TTL is performing quality control testing services for each of the contractors of this major interstate widening project.  The project was designed and is being constructed to provide increased capacity for Northwest Ohio’s (District 2) busiest interstate route by adding a third lane to about 32 miles of the I-75 corridor in Wood and Hancock [...]


TTL, Chicago Department, was awarded a Task Order on September 24, 2014 to perform Interim Measures (IM) at the Defense Reutilization Marketing Office (DRMO) Storage Lot at Naval Support Activity (NSA) Crane, located in Crane, Indiana under our Environmental Multiple Award Contract (EMAC) No. N40083-11-D-0031 with the Naval Facilities Engineering Command (NAVFAC) Midwest. The DRMO [...]

TTL Receives Low EMR of .58

Recently TTL Associates received official notification that our Experience Modification Rate (EMR) was reduced from .61 to .58.  Safety is primary concern for us at our work sites and at our office.  When you are in the process of awarding a contract for environmental, geotechnical engineering or material testing services, please contact us. With our [...]

Materials Testing NICET Certification

John Rust, TTL’s  manager of the construction materials testing and inspection department, is pleased to announce that over 50% of TTL’s construction materials testing engineering technicians are now Level II Certified by the National Institute for Certification in Engineering Technologies (NICET).  This certification program, though its three subfields of Asphalt, Concrete and Soils , was [...]