By Zain Haidar May 27 2015 12:00 AM EDT weather.com

00:39 Scuba Diver Finds Planes in Pacific Ocean A Coast Guard Captain was scuba diving in the Marshall Islands when she came across more than 150 WWII planes living on the bottom of the Pacific.

More bad news for drought-stricken California.

NBC Bay Area reports that vandals deflated a rubber dam in Fremont, California, last Thursday, releasing 50 million gallons of drinkable water into the San Francisco Bay.

<img class="styles__noscript__2rw2y" src="https://dsx.weather.com//util/image/w/damm_0.jpg?v=at&w=485&h=273&api=7db9fe61-7414-47b5-9871-e17d87b8b6a0" srcset="https://dsx.weather.com//util/image/w/damm_0.jpg?v=at&w=485&h=273&api=7db9fe61-7414-47b5-9871-e17d87b8b6a0 400w, https://dsx.weather.com//util/image/w/damm_0.jpg?v=ap&w=980&h=551&api=7db9fe61-7414-47b5-9871-e17d87b8b6a0 800w" > The rubber dam prior to the multi-million dollar damage done Thursday. (Alameda County Water District ) (Alameda County Water District ) For perspective, the Alameda County Water District says the water lost is equivalent to a year's supply for 500 households.

(MORE: Crews Scramble to Prevent Dam Failure )

"It's shocking that someone would do this, given our current situation. Our drought is so severe," Fremont resident Emily Kunkel told NBC. "I don't understand why anyone would do that."

Fremont police say that the vandals, who haven't been found, trespassed into the area early Thursday and destroyed the dam, which was holding back water for the Niles Cone Groundwater Basin.

Damages to the property range up to $3 million , CBS San Francisco reports.

California is four years into a historic drought that's impacted the state on a widespread level.

Besides a $1 billion plan to relieve California's residents, Gov. Jerry Brown has proposed fines up to $10,000 for severe water wasters .

If they're caught, the vandals behind the deflated dam could face thousands in fine and jailtime for destruction of public property.

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