All coastal swimming areas in Long Beach are closed after a sewage spill upstream in the city of San Gabriel.

The spill was reported by the Los Angeles County Sanitation District Tuesday morning, according to information provided by the city. The spill is estimated to be about 250,000 gallons and is still ongoing. It entered the storm water drainage system approximately 33 miles north of Long Beach.

City Health Officer Mitchell Kushner is ordering all swimming areas in Long Beach’s open coastal beaches closed until lab results confirm the water is safe for swimming.

Kushner has also issued a separate rain advisory for all recreational beaches and bays in Long Beach, according to the city. Significant rainfall can wash pollutants and unhealthy conditions in runoff that empties from the Los Angeles and San Gabriel rivers into the Long Beach area.

Recreational swimming areas should be avoided for three days following the end of a rainstorm.

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Contact Greg Yee at 562-499-1476.