Gun range

U.S. Customs and Border Patrol is paying more than $3.7 million to clean up the former firing range off of Target Range Road.

The federal government will seek proposals for an environmental cleanup project at a former U.S. Border Patrol firing range in Nogales estimated to cost $3.7 million early next year.

The U.S. Army Corps of Engineers will solicit a bid for the project possibly as early as January, said John Lawson, section chief at U.S. Customs and Border Protection’s Joint Task Force-West. CBP uses the Corps of Engineers for support on such projects.

A two-year study between 2011 and 2013 on the half-acre site off Target Range Road found high levels of lead, antimony, arsenic and polyaromatic hydrocarbons in the soil.

Lawson said though CBP weighed several options, excavating the nearly 7,000 cubic yards of soil and transporting it to a landfill would allow “unrestricted, future use of the land.” The cost of hauling lead-impacted soils ranges from $380 to $400 per cubic yard, he added.

“To achieve an unrestricted use of the land, we need to excavate and transport the impacted soils off site,” Lawson said in an email. “(It usually costs) more than capping the land or using other options evaluated and would leave contaminated soil on the property.”

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