Contact your respective 811 provider below either via website or phone to locate and mark underground utilities before you dig. Michigan: http://www.missdig.org/   Michigan Boring Contractors Contact 811 | Call 811 Michigan Boring Contractors Contact 811 | Call 811 Alabama: 811 or 1-800-292-8525 Arizona: 811 or 1-800-782-5348 Arkansas: 811 or 1-800-482-8998 California North: 811 or … Continue reading Contact 811 One Call System