In this Oct. 29, 2009 photo, a brine well operation, located ...
In this Oct. 29, 2009 photo, a brine well operation, located at right, behind building, owned by I&W Trucking in Carlsbad, N.M., is fenced off because state officials fear a cavern that has formed under the site as a result of nearly 30 years of brine production is at risk of collapsing. A mobile home park and a major irrigation canal sit to the south of the site.
(AP Photo/Susan Montoya Bryan)
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