HOUSTON Surge testing begins in Harris County Thursday and two locations are transitioning to free surge testing sites. Ken Pridgeon Stadium and San Jacinto College Central Campus locations will transition to surge testing sites, aiming to increase testing capacity and faster lab turnaround times, officials said. What is surge testing? Surge testing provides additional temporary federal support to areas around the county that have seen a recent spike in coronavirus cases. All surge testing must register through www.doineedacovid19test.com, HCPH call center cannot register individuals for surge testing.