A group of Colleyville and Southlake residents said Tuesday it conducted tests recently at a Barnett shale well site in Colleyville that showed emissions at unhealthy levels. Air tests conducted in early February, when Titan Operating hydraulically fractured seven wells, showed one compound, carbon disulfide, over the state's threshold for short-term health impact on Feb. 1 and 2, according to reports from the group and the Earthworks Oil & Gas Accountability Project. Levels of two other compounds, benzene and naphthalene, were over the state's long-term limits only on Feb. 2. None of the chemicals exceeded health limits during another test Feb. 9, according to Earthworks' posted results. Earthworks posted the test results and other analysis on its web site here: www.earthworksaction.org//library.
The City of Colleyville also hired a testing company during the activity. It found no emissions above its threshold levels. The city posted those results here.
Read the Star-Telegram's developing report on the results here.
KTVT-Channel 11 posted a report on the tests here.
-- Jim Fuquay