SACRAMENTO – Pointing to California’s relative success in flattening the curve and addressing the initial potential surge in COVID-19 hospitalizations, state officials on Wednesday announced significant reductions in medical surge sites, including Seton Hospital in Daly City and the Craneway Pavilion in Contra Costa County.

Leased by the state last month, Seton Hospital, along with the Los Angeles Surge Hospital, is expected to close no later than June 30, the California Human Services Agency and the Governor’s Office of Emergency Service said in a joint news release.

In addition, a number of other alternate care facilities and federal medical stations throughout the state will be placed into “warm shutdown status” to remain available as surge capacity should there be a subsequent wave of COVID-19 or other emergencies.

“I want to thank all our partners who assisted in getting these sites up so quickly to support our communities,” said Cal OES Director Mark Ghilarducci.

“Maintaining the use of these facilities going forward will provide us critical flexibility to safeguard the health and safety of Californians as we begin to reopen the state,” he added.

Among the federal medical stations being placed into warm shutdown status are the Craneway Pavilion in Contra Costa County and the San Mateo County Event Center. Also on the list are the Los Angeles Convention Center, Riverside County Fairgrounds, Fresno Convention & Entertainment Center and the Palomar Medical Center in San Diego.

State officials said the 400-bed alternate care site at the former home of the Sacramento Kings, the Sleep Train Arena, will also close at the end of the month. But the practice facility will remain operational to support patients through at least June 30.

Alternate care sites at the Porterville Developmental Center and the Fairview Developmental Center in Costa Mesa will also be placed into a warm shutdown on July 1.

In addition, the USNS Mercy Hospital Ship, which had served as an alternate care site in Los Angeles, left the city on May 15 to return to its home port in San Diego.

Federal medical station equipment previously used in Butte and Shasta counties is being deployed elsewhere, and a site is being opened in Imperial County, according to state officials.

State officials said data on COVID-19 hospitalizations indicate that the state is “showing signs of successful mitigation” and a “flattening of the epidemiological curve.”

“Because of the great work of Californians across the state we have flattened the curve,” said CHHS Secretary Dr. Mark Ghaly. “This is why the stay-at-home order was issued, to save lives and to give the health care delivery system time to prepare.”

The announcement comes a day after the state reported 122 new deaths from the virus, the most in a single day since the start of the pandemic. Another 88 deaths were reported Wednesday, bringing the death toll to 3,494, according to data compiled by this news organization. The number of new cases also rose by 2203 for a total of 85,957.