CORPUS CHRISTI – State officials said all Corpus Christi drinking water samples collected Tuesday weren’t contaminated.

EPA said test results show none of the samples contained the chemical Indulin AA-86. The chemical was believed to have contaminated Corpus Christi’s water supply earlier this month.

So far, no tests have shown the chemical made it into the water supply.

However, at least 12 people have complained of symptoms consistent with the chemical’s exposure.