Perchlorate in Haliburton's Wells in Oklahoma
Associated Press Halliburton confirms well contamination in Okla. Associated Press, 07.08.11, 11:20 AM EDT DUNCAN, Okla. -- Halliburton Co. has found contamination in 18 water wells in Duncan, Okla. and said it's taking steps to correct the problem. In testing the wells, Halliburton ( HAL - news - people ) detected perchlorate, which it described as a colorless salt that could - in high enough concentrations - cause adverse health effects, particularly with the thyroid gland, the company said Thursday. Halliburton said perchlorate is not a carcinogen. Article Controls The wells are located on Duncan's north side, where Halliburton used to perform government contract work involving removing and burning spent missile fuel contained in missile casings. It's been 20 years since Halliburton conducted operations at the site but the company thinks the work probably contributed to the groundwater contamination. The company collected the water samples from the wells to