The town reported that sand, asphalt, and bricks combined to block a portion of the Town of Cary's sanitary sewer system, resulting in a spill discovered on Monday near Council Gap Court off Davis Drive in western Cary.
An estimated 18,000 gallons of untreated waste escaped from a manhole and reached Turkey Creek, the town said in a statement.
The problem was reported to the town just after 4 p.m. on June 6, and it took repair crews less than an hour to unblock the line and contain the spill.
Workers installed a temporary dam to keep the waste from traveling downstream, limed and flushed the area with clean water, and pumped the waste back into the municipal system.
Crews observed about 100 small dead fish in the area.
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