AUSTIN (CBSDFW.COM/AP) — Texas officials have given final approval to allowing low-level radioactive waste from 38 states to be brought to a Texas burial dump near the New Mexico border.

State lawmakers had already approved bringing the waste to the Texas site. The Texas Low-Level Radioactive Compact Commission voted unanimously Friday to approve final rule changes.

Environmentalists say trucking the waste on state highways is dangerous and fear the burial site could lead to underground water contamination.

Dallas-based Waste Control Specialists insists the site near Andrews is safe and that accidents moving the low-level radioactive waste are infrequent.  Andrews is 35 miles north of Odessa.

Waste Control Specialists is owned by Dallas billionaire businessman Harold Simmons, who has been called “Dallas’ most evil genius” and is a major donor to Governor Rick Perry.  Simmons, the company, and the Andrews project have been dogged by allegations of political favors.

Earlier this week, Simmons told the Wall Street Journal (subscription required) that President Obama “is the most dangerous American alive.”

(Copyright 2012 by CBS Local.  The Associated Press contributed to this report.  All Rights Reserved.)

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