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Effective January 1, 2020, both the City of Aspen Water Department and City of Aspen Electric Department will become Tier One utilities.
Colorado 811 Homeowner's Brochure
811 Fact Sheet
Colorado 811 Procedure Guide
2018 Colorado One Call Law
Senate Bill 18-167
UNCC Bylaws amended May 28, 2019
Colorado 811 Excavator's Handbook