Tap water trouble in Corpus Christi

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A lawyer has issued a temporary restraining order against the group believed to be responsible for a potentially dangerous water contamination that's left 300,000 residents without tap water.

Attorney Craig Sico of Sico Helscher Harris & Braugh LLP issued the order on behalf of the owners of WaterStreet, Ltd. and Costa Sur Peruvian Fusion, LLC to, "protect their interests by obtaining a court order stopping Valero and Ergon Ashpalt & Emulsions Inc. from destroying, changing or modifying any potential evidence relating to the cause and effect of this water contamination event."

On Wednesday night, the city of Corpus Christi issued a complete water usage ban in what they called an act of abundant caution. It came after an unknown chemical was found in the water following what the city called a recent industrial district back-flow incident.

That chemical has now been identified as INDULIN AA-86. The City of Corpus Christi's Media Relations Director Kim Womack said, "in order to appropriately test for the chemical we have to have the full environmental makeup of the chemical, so we have signed a confidentiality disclosure with the patent holder in order to get the specifics."

The City of Corpus Christi has released the following statements on its website: