GroundRosterRocky Mountain Sand & GravelLicensed
| Name | Rocky Mountain Sand & Gravel |
| Company | Earl S. Merrill |
| License type | Septic Installer |
| License status | Active - Laramie County certified installer |
| Based in | Cheyenne, Wyoming 82009 |
| Phone | (307) 203-9809 |
"Based in" is the city on the business's state license record. That can be a mailing address; it doesn't tell you where the business works.
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What this license covers
- Installation / repair: licensed to build and install septic tanks and drainfields, and to repair or replace failed ones.
How to verify this license
We publish the license details exactly as they appear in Wyoming's official licensing records; we do not vouch for the business itself. Before hiring, look up this license directly with the state, confirm it is still active, and ask for a current certificate of insurance.
Source: Wyoming County Health Departments - Certified Septic Installers, last checked 2026-08-17. Verify at the official source.
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