Trenchless Specialties (TSI) was started in 1995 to provide Horizontal Directional Drilling (HDD) services.

Trenchless Specialties (TSI) was started in 1995 to provide Horizontal Directional Drilling (HDD) services. HDD is a mud rotary method of guided drilling that is used to install pipe, conduit and well screen underground. TSI is one of the few HDD contractors licensed to install Horizontal Wells for environmental applications. All personnel meet OSHA 40 CFR 1910.120 requirements for HAZWOPPER training. This includes initial 40-hour training, 8-hour refresher training, medical monitoring and r...

Trenchless Specialties (TSI) was started in 1995 to provide Horizontal Directional Drilling (HDD) services. HDD is a mud rotary method of guided drilling that is used to install pipe, conduit and well screen underground. TSI is one of the few HDD contractors licensed to install Horizontal Wells for environmental applications. All personnel meet OSHA 40 CFR 1910.120 requirements for HAZWOPPER training. This includes initial 40-hour training, 8-hour refresher training, medical monitoring and respirator fit testing.