The cause was elevated levels of hydrogen sulfide.
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"It was unbearable, and I can't imagine anyone having to spend more than a minute enduring that smell," said Richmond Mayor Eduardo Martinez.
Martinez says he's had enough.
VIDEO: Flaring at Richmond Chevron refinery caused by partial power loss at facility, officials say
Flaring activity at Chevron Richmond refinery stopped
He tells ABC7 News, on Tuesday Richmond will hold a special emergency meeting over the state of the city's air quality.
Representatives from Veolia, the company that runs the wastewater plant, will also be in attendance.
"We hope to have a lot of the public there so that the Veolia executives can actually hear testimony as to what their company is doing to the Richmond community," Martinez said.
One of the areas most impacted by last week's incident was the Point Richmond neighborhood.
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Nathan Trivers owns a local pub there and says this isn't the first time strange odors have impacted those who live and work nearby.
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"We always would love for them to be conscious of the local community around there to do what they can do, but stuff happens," he said.
The Bay Area Air Quality Management District is investigating the incidents.
Veolia says the hydrogen sulfide smell was caused by work being done to replace a fan and to drain a tank at their plant.
In a statement they say in part:
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"...We regret that this work may have inadvertently created an odor issue for neighbors in the area. We will review our processes with the City to ensure that the City has as much notice as possible of any future work that could create odor exposure, and we will continue to implement measures to mitigate odors at the wastewater plant."
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Mayor Martinez says Tuesday's emergency meeting is just one step he wants to take though. He believes in the long run, the city of Richmond needs greater accountability for large companies.
The mayor says he'd like to see that accountability come in the form of more regulations and higher fines paid by large companies.
But he knows sometimes things aren't always that simple.
"The issue with corporations like Veolia or Chevron is that when you get into litigation with them is that they have deep pockets. Richmond does not."