ABOUT DON
Don Miller is the owner and lead operator of Mountain Dirt Works.
Don has more than 40 years of experience in all phases of road grading and road maintenance, excavation, and residential construction. With over 18 years of experience as a senior operator for Boulder and Gilpin Counties, Don brings extensive knowledge, skill and professionalism to each of his client’s projects.
Don’s Credentials
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Colorado Commercial Driver License Class A
Colorado Professionals Onsite Wastewater (CPOW) - Gilpin County licensed septic installer
Colorado State Residential General Contractor - Gilpin County licensed general contractor
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Corporate Caterpillar International Registry of certified Motor Grader Operators, No. 6972 (Certified 2016)
Colorado Local Technical Assistance Program (LTAP), Colorado Roads Scholar (Certified 2018)
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National Association of Wastewater Technicians (NAWT) Professional Training Program, Colorado State Certification for Septic Soils Interpretation, May 2022
National Association of Wastewater Technicians (NAWT) Professional Training Program, Colorado State Certification for Septic Design, April 2022
National Association of Wastewater Technicians (NAWT) Professional Training Program, Colorado State Certification for Septic Installation, March 2022
Supervisory Skills and Development Program- Successful Employees Make Successful Supervisors, Colorado Local Technical Assistance Program (CLTAP), November 2019
Advanced Math Practices, CLTAP, 8 credit hours, December 2018
Basic Math for Road Construction, CLTAP, 8 credit hours, December 2018
Winter Survival, CLTAP, 8 credit hours, October 2018
Dealing with Conflict, CLTAP, 8 credit hours, May 2018
Safety on the Job, CLTAP, 8 credit hours, November 2016
HAZCOM/GHS, County Technical Services, Inc. (CTSI), Gilpin County, 2 credit hours, September 2016
Level 2 Operator Certification- Heavy Construction, Motor-graders, Wagner Caterpillar, 16 credit hours, June 2016
Hardhat Safety, John Combs, Gilpin County, 1 credit hour, December 2015
Flagger Certification, CTSI, Gilpin County, 2 credit hours, November 2015
EEO/Nondiscrimination with LEP, CTSI, Gilpin County, 2 credit hours, March 2015
CDL Drug and Alcohol Awareness: CTSI, Gilpin County, 2 credit hours, December 2013
Flagger Certification, CTSI, Gilpin County, 2 credit hours, December 2013
Gravel Roads Academy, CLTAP, 16 credit hours, June 2013
Transfer Station Safety, CTSI, Gilpin County, 8 credit hours, December 2012
Body Mechanics, CTSI, Gilpin County, 1 credit hour, September 2012
Blood-borne Pathogens and Infection Control, CTSI, Gilpin County, 2 credit hours, September 2012
Drainage, CLTAP, 8 credit hours, October 2011
Hazard Awareness, CTSI, Gilpin County, 2 credit hours, August 2011
Signing, Pavement Markings and MUTCD, CLTAP, 8 credit hours, April 2011
Roadway Safety and Work Zone Traffic Control, CLTAP, 8 credit hours, April 2011
Flagger Certification, CTSI, Gilpin County: 2 credit hours, April 2011
Winter Driving, CTSI, Gilpin County, 2 credit hours, February 2011
CDL Disqualification, CTSI, Gilpin County, 1 credit hour, January 2011
CDL Drug and Alcohol Awareness, CTSI, Gilpin County, 1 credit hour, January 2011
Orientation and Diversity Training, HR1001, Boulder County Government, July 2006
Interviewing and Personnel Selection, HR2060, Boulder County Government, October 2006
Culturally Sensitive and Effective Management HR2160, Boulder County Government, November 2005 and September 2006
Progressive Discipline Policy, HR2110, Boulder County Government, October 2005
Supervisory Styles, HR2010, Boulder County Government, October 2005
Effective Leadership for Peak Performance, HR2230, Boulder County Government, May 2005
FEMA-ICS-100: Introduction to the Incident Command System, FEMA-ICS-700: National Incident Management System, United States Department of Homeland Security, Federal Emergency Management Administration, July 2006
Developing Individual Performance, Positive Discipline, HR2050, Boulder County Government, May 2005
Introduction to Supervision - Developing Individual Performance - Performance Standards & Appraisals HR2040, Boulder County Government, April 2005
Motor-grader 2: Heavy Equipment Training Academy - 40 Credit hours, September 2003
Visionlink HR0000 Human Resources training, Boulder County Government, August 2002
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Proclamation of Honor awarded by the Gilpin County Board of Commissioners for professionalism and sensitivity in assisting a motorist in life-threatening situation
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Senior/Lead Equipment Operator 2, Gilpin County Public Works, December 2010 - March 2020
Equipment Operator 3, Boulder County Department of Transportation, Nederland Substation, February 2002 - December 2010
Equipment Operator, Phil Hendershott Construction, Boulder, CO, July 1996 - February 2002
