Three restaurants in the San Fernando Valley were temporarily closed last week due to major public health hazards.

Between April 11 and April 17, those facilities had their health permits suspended for cockroach infestations and sewage issues, according to a report from the Los Angeles County Public Health Department.

Restaurants and markets whose permits are suspended must close until another inspection determines the problems have been fixed. Closures can occur during routine and owner-initiated inspections, complaint investigations and re-inspections.

The department did not provide details about the nature of the cockroach infestations — like where in the facility they were found.

Major health hazards that cause restaurant closures only cost facilities four points, so facilities could receive A grades at the time they are shut down. A recommendation to change that result, among other aspects of the inspection system, is being considered by county health officials.

Here are the food facilities that were temporarily closed. Unless otherwise noted, the grades listed for the facilities were received on the same day they were closed.

• Johnny Rockets

Location: 4799 Commons Way, Calabasas, CA 91302

Closure reason: two floor sinks not draining properly

Closure date: April 12

Reopen date: April 13

Grade: A (95) received April 11

• Mario Mexican Grill

Location: 14909 Vanowen St., Van Nuys, CA 91405

Closure reason: five live cockroaches, more than 15 dead cockroaches

Closure date: April 12

Reopen date: no matching reopen date

Grade: B (85)

• Pizza Holic

Location: 10750 Glenoaks Blvd, Pacoima, CA 91331

Closure reason: cockroaches

Closure date: April 13

Reopen date: April 15

Grade: B (83)