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100+ Free OR Well Driller Practice Questions

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What is the recommended minimum submergence of a submersible pump motor below the pumping water level?

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Free Well Driller Practice Test by State 2026: 2,500+ Questions21 min read
2026 Statistics

Key Facts: OR 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

$300

License Fee

LicenseMap 2026

Oregon requires well drillers and pump installers to pass a state licensing exam covering well construction standards, groundwater protection, and OWRD regulations.

Sample OR Well Driller Practice Questions

Try these sample questions to test your OR Well Driller exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Under Oregon law (ORS 537.753), what is the required bond or irrevocable letter of credit amount for a licensed Water Supply Well Constructor who advertises services?
A.$10,000
B.$20,000
C.$25,000
D.$30,000
Explanation: Oregon ORS 537.753 requires that any person who advertises or contracts for well construction must furnish a Water Well Constructor's Bond or Irrevocable Letter of Credit in the amount of $20,000 to the Water Resources Commission. This protects consumers from defective well construction.
2How many continuing education credits (CECs) must an Oregon licensed well constructor obtain during each 2-year licensing period?
A.8 credits
B.10 credits
C.14 credits
D.16 credits
Explanation: Under OAR 690-205-0045, each individual licensed under ORS 537.747 must obtain a minimum of 14 continuing education credits (CECs) during each licensing period, regardless of the number of licenses or endorsements held.
3Of the 14 required CECs, how many must specifically pertain to Oregon groundwater and well construction statutes (ORS 537.505-795) and administrative rules (OAR 690-200 through 690-240)?
A.1 credit
B.2 credits
C.4 credits
D.6 credits
Explanation: OAR 690-205-0045(2) requires a minimum of 2 CECs pertaining to groundwater and well construction statutes under ORS 537.505 to 537.795 and 537.992, and administrative rules under OAR 690-200 through 690-240 during each licensing period.
4What is the maximum number of continuing education credits an Oregon well constructor may obtain through approved safety/first aid/CPR/Hazardous Materials courses per licensing period?
A.4 credits
B.6 credits
C.8 credits
D.10 credits
Explanation: Under OAR 690-205-0045(3), a maximum of 8 CECs may be obtained through approved safety/first aid/CPR/Hazardous Materials courses. Of those 8, a maximum of 4 CECs may be obtained through CPR/first aid and 4 through hazmat courses.
5How far in advance must a driller file a Start Card (Construction Notice) with OWRD before beginning to drill a well in Oregon?
A.24 hours
B.48 hours
C.72 hours (3 business days)
D.5 business days
Explanation: Oregon requires a Start Card (Construction Notice) to be filed at least 72 hours (3 days) before drilling begins. As of July 2024, electronic filing is mandatory for this notification to the Oregon Water Resources Department (OWRD).
6Within how many days after well completion must an Oregon well driller submit the Well Report (Well Log) to OWRD?
A.7 days
B.14 days
C.30 days
D.60 days
Explanation: The Well Report (Well Log) must be submitted to OWRD within 30 days after completion of the well. The same 30-day deadline applies to abandonment/plugging reports. Electronic submission is preferred.
7What is the fee for an Oregon Water Supply Well Constructor's license, and what is the license term?
A.$100 for 1 year
B.$150 for 2 years
C.$200 for 2 years
D.$250 for 3 years
Explanation: The Oregon Water Supply Well Constructor's license costs $150 and is valid for 2 years. Licenses must be renewed by June 30 of even-numbered years. A separate $150 fee applies for a Monitoring Well Constructor endorsement.
8What is the late renewal penalty for an Oregon well constructor's license if renewed within 12 months after expiration?
A.$50
B.$75
C.$100
D.$150
Explanation: If an Oregon well constructor renews their license within 12 months after the expiration date, a late renewal penalty of $100 is assessed in addition to the regular renewal fee. Beyond 12 months, the driller must reapply and may need to re-examine.
9Under OAR 690-205-0005, a licensed Water Supply Well Constructor must be physically present on site at all times when a cable tool drilling machine is performing which activity?
A.Air testing or pump testing the well
B.Gravel packing operations
C.Setting or advancing casing
D.Removal of the drill stem from the well
Explanation: A licensed Water Supply Well Constructor must physically be on site at all times when a cable tool drilling machine is setting or advancing casing, setting liner, perforating casing, setting well screens, placing packers, placing casing seals, or drilling within a flowing artesian well.
10Under Oregon rules, which of the following activities may a Water Supply Well Constructor trainee perform WITHOUT the licensed constructor being physically present?
A.Setting well screens
B.Perforating casing
C.Developing a completed well
D.Placing casing seals
Explanation: Under OAR 690-205-0005, a trainee may operate a non-cable tool water supply well drilling machine without the licensed constructor physically present during: air/pump tests, gravel packing operations, developing a completed well, and removal of the drill stem. Critical activities like setting screens, perforating casing, and placing seals require the licensed constructor on site.

About the OR Well Driller Exam

The Oregon well driller exam covers state well construction standards, casing and grouting requirements, pump installation, groundwater protection, OWRD licensing regulations, well abandonment procedures, and professional practice under Oregon well standards.

Questions

100 scored questions

Time Limit

2 hours

Passing Score

70%

Exam Fee

$300 (Oregon Water Resources Department)

OR Well Driller Exam Content Outline

25%

Well Construction

Casing, grouting, well design, drilling methods, well development

20%

Pump Installation

Pump types, sizing, electrical connections, pressure systems, maintenance

20%

Regulations

OWRD licensing, well standards, reporting requirements, fees, CE requirements

20%

Groundwater

Aquifer protection, water quality, contamination prevention, Pacific NW geology

15%

Professional Practice

Well logs, abandonment procedures, safety, contracts, client relations

How to Pass the OR Well Driller Exam

What You Need to Know

  • Passing score: 70%
  • Exam length: 100 questions
  • Time limit: 2 hours
  • Exam fee: $300

Keys to Passing

  • Complete 500+ practice questions
  • Score 80%+ consistently before scheduling
  • Focus on highest-weighted sections
  • Use our AI tutor for tough concepts

OR Well Driller Study Tips from Top Performers

1Master Oregon's well construction standards and casing requirements under OWRD rules
2Understand proper grouting procedures for Oregon's volcanic and alluvial geology
3Study pump types, sizing calculations, and electrical connection requirements
4Know groundwater protection measures for Oregon's basalt aquifer systems
5Review well log documentation requirements and abandonment procedures

Frequently Asked Questions

What does the Oregon well driller exam cover?

The exam covers well construction standards, casing and grouting requirements, pump installation, groundwater protection, Oregon OWRD regulations, and professional practice.

What is the passing score for the OR well driller exam?

A minimum score of 70% is required to pass the Oregon well driller licensing examination.

What experience is required for an Oregon well driller license?

Oregon requires experience working under a licensed driller before you can sit for the licensing exam. Contact the OWRD for current requirements.

How often must the Oregon well driller license be renewed?

License renewal requirements include completing continuing education hours. Contact the OWRD for the current renewal cycle and CE requirements.