Approximately 2 million gallons of sewer water, some of which poured into Stewart Creek, overflowed from manholes, according to the city. The sewer water was diluted with stormwater runoff in the creek, according to the city.
The North Texas Municipal Water District operates the wastewater treatment plant. NTMWD notified the city at 4:45 a.m. of the overnight power outage. Power was restored to the plant at 5:45 a.m. After investigating, the city found sewage overflow at three locations west of the plant.
Because of ongoing rain, the city expects the situation to be contained by the end of the day Wednesday.
In a statement, Public Works Director Paul Knippel said the city's drinking water is safe, and city crews are working to limit the environmental impact of this incident. Residents should avoid contact with waste material, soil or water in the impacted area. According to the city, the areas are along the Stewart Creek corridor and are not easily accessible by the public.