CWD Certified Well Driller VIP Practice Exam

CWD — The Certified Well Driller (CWD) credential is issued by the National Ground Water Association (NGWA). The proctored exam consists of approximately 150 multiple-choice questions administered over 3 hours, with a passing score of 70%. It covers hydrogeology, drilling methods, well construction, water quality, pump systems, well development, rehabilitation, and applicable safety and regulatory standards.