10/28/2026
UPDATE - TIMESTAMP Oct. 28, 2026 at 10 a.m.
York County Utilities would like to provide additional clarity regarding the recent sewage overflow near Little Allison Creek.
• The County is conducting a thorough investigation into why the overflow happened. The pump station is equipped with a generator and alarm/notification system, but neither responded following the overflow due to a wiring issue that supplies power to the pumps. The County has prioritized addressing the equipment failures to ensure a similar incident does not happen again.
• We have followed the South Carolina Department of Environmental Services (SCDES) protocols to immediately remediate the impacted area and will conduct testing for several days to ensure the remedy is effective.
• At this point in time, the only official guidance related to water safety is for the immediate area surrounding the overflow near Little Allison Creek. The small number of residents who are impacted have been notified directly and the County is in the process of posting signs in that area. There is no broader guidance that has been issued for Lake Wylie. The County will share any additional information or guidance, if issued or recommended by SCDES.
• Although there have been sewage issues from other Utilities that have impacted Lake Wylie recently, York County Utilities has not had any reportable sewage overflow issue in several years.
We understand this incident has caused concerns and frustration. York County is committed to addressing the problem and finding a solution moving forward.
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The York County Little Allison Creek Pump Station in Lake Wylie lost power yesterday evening, which resulted in a sewage overflow. While the overflow has ceased, it is estimated that approximately 500,000 gallons of sewage went into Little Allison Creek.
Upon discovering the issue, York County immediately contacted South Carolina Department of Environmental Services and staff will continue to work with them to resolve the overflow. Additionally, Utilities staff have prioritized a fix to the pump station which caused the sewage overflow.
We deeply regret the incident, and apologize for the disruption to the area.
