An ad hoc committee has wrapped up its investigation into a local cement plant’s emissions, as it found the Lehigh Southwest Cement Plant is emitting toxins below the trigger level. The findings come from a committee set up by the members of the Los Altos City Council and the Los Altos Hills Town Council. Despite this positive finding, the committee plans to hire an independent auditor to review data and provide an expert’s opinion. "The contract will be awarded sometime in the next 45 days," said a member of the committee. The investigation came after some citizens’ groups voiced distrust over data the plant was reporting to the government.