RAWLINS (AP) - Officials with Carbon County and the city of Rawlins voiced concerns about a proposed expansion of a natural gas processing plant.

Tulsa, Okla.-based Williams Co. is proposing to spend about $232 million to double the processing capacity and production of natural gas liquid at its Echo Springs plant. The plant is about eight miles southeast of Wamsutter.

Dallas Scholes of Williams said as many as 175 temporary workers will be needed during peak construction.

The Carbon County commissioners were worried about where the workers would live.

"We don't want to see RVs parked behind every clump of sagebrush," commission Chairman Terry Weickum said.

Williams plans to house workers in Rawlins and Wamsutter, with all of them living in motels.

Scholes said Williams employees are contacting motels to determine room availability.

Rawlins City Attorney Dan Massey said temporary workers mean more work for city staff.

"We've gone from 40 DUIs a year to 200 DUIs a year," he said. "We have some companies that say, you get in trouble, you're gone. We have other companies that say, you get in trouble, we'll be there to bail you out so you can work."

"What can you do to help us with the problem that's going to be created?" Massey asked.

Scholes replied, "I will take this back to the project manager."

Rawlins Mayor Ken Klouda said Williams could encourage workers to use the Rawlins Family Recreation Center, the shooting ranges and other recreational facilities.

"We want you guys to come, and we want the workers to earn their money and enjoy their stay rather than visit with Dan and his staff," Klouda said.

Weickum asked Williams to make a waste management plan for construction debris. "We don't want packing crates filling up the landfills," he said.

Scholes said modular components will be fabricated in Oklahoma and trucked to Echo Springs for assembly, minimizing construction waste.

The expansion is expected to create seven new full-time positions.

Rawlins City Councilman DeBari Martinez said he would like to see more if possible. He said the existing Echo Springs plant has been a boon for Rawlins and the employees who live in Rawlins have been good neighbors.

Williams, which is still in the process of applying for permits, plans to start construction next year. The plant is expected to go on line in late 2010. The work force is expected to peak in 2010.

The Echo Springs plant is currently at production capacity. The expansion will allow the plant to process an additional 350 million cubic feet of gas per day.