100+ Free CO Well Driller Practice Questions
Pass your Colorado Well Driller / Pump Installer Exam exam on the first try — instant access, no signup required.
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Key Facts: CO Well Driller Exam
70%
Passing Score
State DNR
100 Q
Practice Questions
OpenExamPrep
2 hrs
Exam Time
State DNR
8 hrs
CE Per Cycle
State DNR
$150
License Fee
LicenseMap 2026
Colorado requires well drillers and pump installers to pass a state licensing exam covering well construction standards, groundwater protection, and Division of Water Resources regulations.
About the CO Well Driller Exam
The Colorado well driller exam covers state well construction standards, casing and grouting requirements, pump installation, groundwater protection, DWR licensing regulations, well abandonment procedures, and professional practice under Colorado water law.
Questions
100 scored questions
Time Limit
2 hours
Passing Score
70%
Exam Fee
$150 (Colorado Division of Water Resources)
CO Well Driller Exam Content Outline
Well Construction
Casing, grouting, well design, drilling methods, well development
Pump Installation
Pump types, sizing, electrical connections, pressure systems, maintenance
Regulations
DWR licensing, well permits, reporting requirements, fees, CE requirements
Groundwater
Aquifer protection, water quality, contamination prevention, Colorado geology
Professional Practice
Well logs, abandonment procedures, safety, contracts, client relations
How to Pass the CO Well Driller Exam
What You Need to Know
- Passing score: 70%
- Exam length: 100 questions
- Time limit: 2 hours
- Exam fee: $150
Keys to Passing
- Complete 500+ practice questions
- Score 80%+ consistently before scheduling
- Focus on highest-weighted sections
- Use our AI tutor for tough concepts
CO Well Driller Study Tips from Top Performers
Frequently Asked Questions
What does the Colorado well driller exam cover?
The exam covers well construction standards, casing and grouting requirements, pump installation, groundwater protection, Colorado DWR regulations, and professional practice.
What is the passing score for the CO well driller exam?
A minimum score of 70% is required to pass the Colorado well driller licensing examination.
What experience is required for a Colorado well driller license?
Colorado requires experience working under a licensed driller before you can sit for the licensing exam. Contact the Colorado DWR for current requirements.
How often must the Colorado well driller license be renewed?
License renewal requirements include completing continuing education hours. Contact the Colorado DWR for the current renewal cycle and CE requirements.