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Susan Garr's 4-year-old Australian shepherd mix, Millie, had dropped from 35 pounds to 22 pounds when she was found over the weekend.
Garr says Millie has jumped over a fence in the past but had never left the neighborhood.
Garr says a teenager was walking past a storm drain Saturday when she heard barking and spotted Millie behind the grate.
Fire and animal control crews freed the pup and returned her to Garr on Sunday.
Garr says that Millie is now an indoor dog.
