The City of Vallejo issued a water emergency Sunday on the heels of two fires near the Zampa Bridge and the California Maritime Academy.

Outdoor water use “is prohibited” and residents are asked to reduce indoor use — including bathing, said Joanna Altman, assistant to City Manager Greg Nyhoff.

Because of the power outage that includes City Hall, the pumping station is unable to treat water, thus limiting the amount of available water to residents, Altman said, adding that because of the outage, “we don’t have access to well water until the power can get turned on.”

Altman said the last time a water conservation alert was issued, water use rose “probably because people worried about their power being shut off.”

“It’s a unique situation,” she said.

Altman urged residents to either buy bottled water or obtain free water at the emergency station at 900 Fairgrounds Drive. Cell phone charging stations are also available.

The “wind event” declared by PG&E precipitating power outages should conclude by Monday, said Altman.

“However, it can take up to 48 hours for PG&E to restore power after they check lines,” she said, warning people to be prepared to go without power until Wednesday.

The water emergency is magnified as firefighters battled two fires near the Zampa Bridge and Cal Maritime on Sunday morning.

Around 140 acres were charred as of 1:30 p.m. Sunday, with 75 percent containment, Altman said, with 110 personnel responding, including air support to battle the blaze on two hills. Though there were precautionary evacuations of 30 residents, the only structures damaged were maintenance buildings at Cal Maritime. Two minor injuries were reported, both by emergency personnel.

The fire shut down I-80 at the bridge in both directions but was eventually re-opened around 3 p.m. Sunday. Altman added that the fire suppression is priority in using Vallejo’s available water.

“This is the most severe I’ve seen in the seven years I’ve been here,” Altman said of the water emergency. The most recent was in 2015 because of a Broadway Street water main break.

Because City Hall has been without power since 8:30 p.m. Saturday, Altman and other city officials worked Sunday out of an Emergency Operations Center at an undisclosed location.

In an early Sunday morning news release, the city urged residents to only call “9-1-1” in an emergency because of the volume of calls regarding power outages and the fires.

Also, motorists are reminded to treat any four-way stoplights that have lost power as stop signs and come to a complete stop before advancing.

“When signals are out, the intersection is treated like a four-way stop,” said Lt. Mike Nichelini of the Vallejo Police Dept., adding that motorists need to focus on the road when approaching a fire.

“It’s important to be extra cautious when you may be preoccupied with fire events,” Nichelini said. “Increased crashes creates more work for police and fire that are already busy with fire operations.”

As of late Sunday, it appears all Vallejo public schools — including those with power outages — will open as usual Monday with possible exception of Patterson and Glen Cove elementary schools because of the fires, according to Superintendent Dr. Adam Clark.

Schools have operated without power before “and there are a lot of parents depending on us to be open and a safe place for their children to go,” Clark said by phone Sunday afternoon.

Clark said he will update the Vallejo City Unified School District Facebook page at 5 p.m. Sunday.

For additional information on power outages contact PG&E directly through their 24-hour Power Outage Main Line at 1-800-743-5002.