Archives for February 2011

EPA Extends Contract

PWT, a Colorado company headquartered in Wheat Ridge, has been awarded the 5-year contract option period for the U.S. Environmental Protection Agency (EPA) Region 8 Remedial Action Contract 2 (RAC2).  The $233‑million, 5-year base-period and 5-year option-period contract for environmental remediation services was awarded in 2006.

“We are pleased to continue our professional relationship with EPA with the extension of this contract,” said Ding-Wen Hsu, PWT owner, “and we appreciate EPA’s efforts to support small business on this type of procurement.”

During the 5-year base period, PWT has provided technical and management services on 23 Work Assignments for environmental cleanup and oversight at Comprehensive Environmental Response Compensation and Liability Act (CERCLA, also known as Superfund) sites throughout EPA Region 8, which includes Colorado, Montana, Utah, North Dakota, South Dakota, and Wyoming, and Region 9 crossover work in California.  Contract work also supports states and communities in preparing for responses to releases of hazardous substances, as well as counter-terrorism.

This work includes the following projects:

  • PWT implemented a remedial action for a 3-year, $6.6 million project on a mine-tailings site in Leadville, Colorado. PWT was the prime contractor for implementation of a of first-of-its-kind in-situ remediation of large areas of mine tailings, and acquisition and management of construction subcontractors.
  • PWT finalized the performance-based design and implemented remedial action for a pump-and-treat system to treat contaminated groundwater on a $4.7 million project near Bountiful, UT.  The system consists of four extraction wells, 7,000 feet of groundwater extraction piping, and a treatment system using activated carbon.
  • PWT provides technical oversight services for the remedial action at a complex, urban industrial waste site contaminated with waste oils disposed in large waste pits on a $2.2 million project near Fresno, California. Work included review of all technical design and remedial action plans, soil and groundwater sampling, waste pile excavation and cover construction, and soil vapor extraction and vadose zone monitoring.
  • PWT developed remediation alternatives for the Record of Decision, prepared cost estimates for the preferred remedy,  and provided extensive community involvement, regulatory negotiations, and sampling evaluation on a $370K project at an abandoned mine/smelter site near East Helena, Montana.