Our team of in-house experts offer more than 35 years of direct experience implementing remediation designs on complex, high profile sites across the country.    Our equipment is specially designed not only to support a wide range of  reagents but also to provide  the highest degree of safety and efficiency in order to meet our clients objectives.  Our focus on quality and safety, which we apply to each and every injection engagement, is the very basis of our culture and identity at TWS.    Contact us to learn more or obtain a quote. 

In Situ Remediation

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  • Design Optimization Testing

  • In-Situ Bioremediation

  • In-Situ Chemical Oxidation

  • In-Situ Chemical Reduction

  • In-Situ Chemical Desorption

  • Hydraulic Emplacement

  • Permeable Reactive Barriers

TWS employs non-destructive methods utilizing state-of-the-art electromagnetic induction (EMI) and ground penetrating radar (GPR) equipment to locate utilities and identify subsurface hazards and obstructions.  TWS also offers air-knifing and air-vaccing services to support utility clearing activities as needed.  Our goal is to identify both the type and location of underground utilities in order to prevent damage to them and the surrounding environment as well as protect you and your workers on the job site.    Contact us to learn more or obtain a quote. 

Utility Locating Services


TWS offers a full range of facilities support services including brush clearing; turnkey waste transportation & disposal; mat placements to create work platforms, access roadways and staging areas; passive soil gas sampling surveys; vapor pin installations; pit excavations; procurement of miscellaneous equipment, (i.e. conex boxes, construction equipment, silt fencing, porta-johns, etc.) and light earth work.     Contact us to learn more or obtain a quote. 

Facilities Support Services

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TWS provides mat placement services in work zones (e.g. wetlands) where access by equipment, both small and large, would otherwise be restricted due to challenging and/or unstable ground conditions.  Mats are placed to create access roadways, staging areas, work platforms, protect prepared subgrades, and to provide equipment stability on soft or sensitive surfaces.  TWS has designed and fabricated special tooling specifically for this service to create efficiencies and reduce overall project costs.   Contact us to learn more or obtain a quote. 

Mat Placement Services

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