chemical spill at Silfab Solar 3/3/26

⚠️ A chemical spill occurred this morning at the Silfab Solar facility in Fort Mill

Public reporting states that approximately 1,500+ gallons of potassium hydroxide were released during the incident. We have also been informed that hydrogen peroxide was among the chemicals released.

Although some reports describe the material as contained, we have been told the chemicals entered the on-site retention pond, which drains into the watershed our community relies on.

Potassium hydroxide is a corrosive chemical. Hydrogen peroxide, in industrial concentrations, is also hazardous. These are not harmless substances.

The timeline also raises serious concerns.

York County and the Fort Mill School District are publicly stating the spill occurred at 9:45 a.m. We received photos from inside the facility showing the spill already underway at 9:21 a.m.

From what we personally witnessed, the first specialized HAZMAT truck did not arrive until 10:46 a.m. If the spill began before 9:25 a.m., that is more than an hour before specialized response was on site.

It also raises urgent questions:

Why was Flint Hill Elementary not evacuated?

Why were families not immediately notified?

Why are there discrepancies in the public timeline?

If this is the response before full operations and before the full chemical inventory is on site, what happens when this facility becomes fully operational?

This is not political. This is public safety.

We are demanding immediate action:

• Revoke Silfab’s unlawful permits immediately

• Halt any Certificate of Occupancy or operational approval

• Release a verified, minute-by-minute public timeline of the spill and notifications

• Disclose the confirmed chemicals involved, volumes released, and environmental impact

• Order independent water testing of the retention pond and downstream pathways, with results posted publicly

• Provide a written explanation for the decision not to evacuate Flint Hill Elementary

York County has a responsibility to protect the public. If leadership refuses to act, this community will escalate — peacefully, lawfully, and relentlessly — until our children, our residents, and our environment are protected.