Mystery Newt

This little guy was found at in a pond vat at the pet store I work at. We were emptying it out before winter came around and he was found crawling in the mud, he's probably two inches long, he's brown with darker brown spots on his back and his underside is yellowish gold, with light brown spots. I cannot figure out kind of newt he his and was hoping someone more knowledgeable could help me out with identifying him