HARKER HEIGHTS, Texas (KXXV) — A problem with Harker Heights' sewer treatment facility on Pecan Drive allowed thousands of gallons of wastewater to spill into South Nolan Creek.
The city says a power surge caused a control system to go offline around 9:30 Thursday evening. That system monitors and runs all of the treatment processes. It's also designed to send alerts when there's a problem — but no alerts were sent when it went offline.
The city discovered the problem around 6:15 a.m. Friday, after a wastewater overflow of 726,250 gallons into South Nolan Creek.
The city is now investigating the cause of the incident and how to prevent future instances.
