1. E I S Environmental & Engineering
31 N Main St, Helper, UT 84526
Coordinate: 39.68979,-110.85502
Phone: (435) 472-3814
2. Blackhawk Engineering Company
1056 W 2060th N, Helper, UT 84526
Coordinate: 39.631275,-110.835655
Phone: (435) 637-2422