Certified Vertical Closed Loop Driller
As geothermal technologies and their applications continue to advance, the need for specialized knowledge and skills in geothermal drilling has grown. In response, NGWA established the Certified Vertical Closed Loop Driller (CVCLD) designation.
The CVCLD designation recognizes individuals who demonstrate knowledge and competency in constructing vertical closed loop geothermal wells through a written examination administered by NGWA.
Eligibility Requirements
To be eligible for the CVCLD designation, applicants must meet the following requirements:
- Age: Be at least 20 years old.
- Experience: Have at least 24 consecutive months of experience constructing loop wells or conventional water supply wells.
- Examination: Pass the 75-question, multiple-choice Vertical Closed Loop (VCL) exam.
- Application: Submit all required certification application forms and supporting documentation.
Certification Application
Exam information
The Vertical Closed Loop (VCL) exam evaluates the knowledge and competencies needed to construct vertical closed loop geothermal wells. The exam consists of 75 multiple-choice questions with a 90 minute exam time.
Candidates should review the recommended study materials and exam content outline to prepare for the examination.
Exam Scheduling
To schedule the Vertical Closed Loop (VCL) exam, visit the PSI testing website or call NGWA for assistance.
Candidates should review the exam scheduling requirements and available testing locations before selecting an exam date.
VCL exam fees
This exam costs $125.