WESLACO — While tests indicate normal chemical levels in the water supply, city leaders are now admitting there may have been a problem last month. They say a late April test showed excessive levels of chlorite, a bi-product of water disinfectant, in the water supply. At high concentrations, chlorite has been linked to nervous system disorders and can be particularly hazardous to young children. A follow up test, to confirm the high levels, was not initially performed as required and so it's unclear whether unhealthy levels of chlorite actually entered the water supply. Regardless, city officials say the city's water supply is now safe and there was minimal risks to the public's health. City Manager Leonardo Olivares stated, "Because of the incident, our contractor, OMI is now taking steps to make sure that the personnel are properly trained, that the equipment is there on the spot when it's needed and that this doesn't happen again." The company that runs the water treatment plant confirms that one employee was disciplined but not fired for failing to perform the required follow up test.