Residents within earshot of emergency alert sirens could be hearing more from them in the next four months.
Catawba Nuclear Station is upgrading all 89 of its sirens.
“What we’re really upgrading is the power supply, so it’s more reliable,” spokesman Scott Andresen said.
Crews began work last week on the first siren off Sandlapper Drive, within a mile of the station, which is on Lake Wylie.
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“The test was successful,” he said. “The siren did go off as planned.”
Seeing crews working on sirens will be common as upgrades continue, Andresen said.
Work will be done on one siren at a time, with crews checking the upgrade work. Sirens will not reach full volume during these tests.
“It’ll be 89 tests, but not all at one time,” Andresen said.
These siren tests are different from the full-volume siren tests performed once each quarter in cooperation with emergency officials in York, Gaston and Mecklenburg counties. Those regularly scheduled tests include all sirens and last about three minutes, while “growl” tests performed as each siren is upgraded will last about 30 seconds.
Catawba Nuclear has sirens in Lake Wylie, Clover, York, Fort Mill, Tega Cay and Charlotte.