Los Angeles County reported to the city on Monday that the spill came from the city of Hawaiian Gardens and was caused by a grease blockage.
The spill happened at the intersection of Hollydale and Silverlake boulevards, about 30 miles upstream.
A grease blockage in a sewage line in Glendale caused the spill, but the effect was felt downstream in Long Beach.
Long Beach health officials announced Tuesday evening that all swimming areas west of the Belmont Pier have been reopened following last week’s sewage spill that flowed into the Los Angeles River.
All swimming areas in Long Beach that were forced closed since Monday’s sewage spill are now open, city health officials announced Thursday afternoon.
All Alamitos Bay beaches have been ordered closed by city health officials after 7,500 gallons of sewage spilled into the bay area on early Monday, officials announced that evening.
The spill near Colorado Lagoon was followed by at least seven sewage spills in the Greater Long Beach area that were reported Sunday evening and this morning, officials said in a press release.
All coastal beaches in Long Beach were declared safe to swim in by city health officials Friday afternoon following a massive sewage spill that began in Los Angeles on Monday.
Long Beach beaches remain closed today following a sewage spill on Monday that has now released about 2.4 million gallons of sewage into the Los Angeles River due to a broken pipe in Los Angeles, authorities said.