Well Driller List

State rules

Colorado

Colorado licenses well drillers and pump installers through the Board of Examiners of Water Well and Ground Heat Exchanger Contractors. The Division of Water Resources says the board supervises construction and abandonment of wells and ground heat exchangers and the installation of pumping equipment. It examines applicants and can deny, approve, revoke, suspend, or renew licenses. The division states that well drillers and pump installers must maintain a current license. A contractor may be licensed for one or more types of construction or installation. The board updates its list of licensed contractors quarterly. This summary points to that official list and does not copy contractor names.

Checked against official sources on October 11, 2026. Rules and links change; confirm with the office listed before you act.

Try a ZIP like 30303, “Travis County” or “Columbus, OH”
Licensing or permitting agency
Board of Examiners of Water Well and Ground Heat Exchanger Contractors, Colorado Division of Water Resources
Who must hold a credential
Licensed water well construction contractor and licensed pump installation contractor
Official permit or license page
Official page →

Licensing materials on the division's boards page include a contractor license application, a description of the licensing process, and a verification of employment and experience. The board's administration rules are 2 CCR 402-14, titled for licensing, financial responsibility, continuing education, and remedial action. Post-license forms include a contractor bond, a certificate of deposit, a letter of credit, and rig registration for well construction or pump installation. Those documents are how a new contractor finishes the license after the board's process, and they are the references a customer can ask a firm to match.

Construction standards are the Water Well Construction Rules, 2 CCR 402-2. The division's well construction page says those rules set minimum standards for materials and methods, including abandonment, pump installation, and cisterns, and it points readers to the 2026 edition as the current version. The same page says House Bill 1165 added ground heat exchanger licensing to the board's work. Continuing education is described on the boards page as a partnership with the Colorado Water Well Contractors Association. If a permit requires it, Rule 6.2.2.1 calls for advance notice and for a copy of the permit at the well site.

Private well owners still need to separate the contractor license from any well permit the State Engineer or a designated-basin agency issues. The same division page explains that the Colorado Ground Water Commission manages designated groundwater basins in eastern Colorado and issues permits for large-capacity wells there, while small-capacity wells are administered by the State Engineer. The office address printed on the page is 1313 Sherman Street, Suite 821, Denver, CO 80203, and the phone is (303) 866-3581. AskDWR is the online contact named beside that number.

Official resources in Colorado

Board of Examiners and contractor licensing

License requirement, applications, bond forms, and construction-rule links.

Well construction and inspection

Construction rules, including the 2 CCR 402-2 amendments effective January 1, 2026.

EPA private drinking water wells

Federal context for private well households.

Key facts for Colorado

What to do next

  1. Ask which license type covers drilling and which covers the pump.
  2. Ask whether the well is a small-capacity well or a designated-basin well.
  3. Ask for the bond or other financial-responsibility document the board requires.
  4. Use the quarterly licensed-contractor list rather than a copied roster.

Looking for your city or county in Colorado?

We haven't found official program-level pages for Colorado we can verify yet, so we don't show local numbers here rather than guess. Here's what to use instead, in order:

  1. General Start with the statewide information above. It applies across Colorado, but cities and counties can add their own steps, fees or deadlines.
  2. Call to confirm Ask the official office. They have the current local rule, fee and form.
    Colorado
    Website →
    Your city or county office: Local governments →
    Not sure who handles it locally? USAGov's free help line, 1-844-872-4681, or the Colorado page on USA.gov can point you to the right office.
  3. Know the current info? Tell us and include a link to the official page. We check every tip before it goes up.

Helpful guides

Well permit planner →

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