Sean Rossman

USA TODAY

A Washington Goodwill donation center received the most generous of contributions over the weekend.

The nonprofit's employees, sifting through weekend donations, found a gifted cooler was filled with 3.75 pounds of marijuana.

Employees called the Monroe Police Department, in Monroe, Washington, outside of Seattle, to report the herbal find. The Seattle Post-Intelligencer said officers haven't found who donated the cooler and the weed stash.

"We went over there and they opened the lid and in there was five large bags of marijuana," police spokeswoman Debbie Willis told CNN. "Normally when we go there, it is for a shoplifter, but not anything like this."

Seattle news station Q13 reports the marijuana has an estimated value of $24,000. Police are reviewing surveillance footage in hopes they can find a suspect.

"There are many people on social media claiming it's theirs," Willis said, "but we have yet to have one walk through the door."

The Post-Intelligencer reported the amount is 60 times the one-ounce limit Washingtonians can carry.

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