In Iowa well services must be performed by an Iowa DNR Certified Well Contractor. Iowa DNR Certified Well Contractors are individuals who meet minimum work experience requirements in area(s) of certification, successfully passed state examinations demonstrating their knowledge for state rules and well services obtain continuing education to further their knowledge and skills. Anyone else hired to help or to perform the needed work must be certified. The certified contractor must be on-site anytime well services are taking place.

The term "well services" as defined by Iowa Administrative Code includes (see Iowa Administrative Code Chapter 567 for a complete list):

• Well drilling
• Pump installation
• New well construction
• Well reconstruction
• Well rehabilitation
• Well repair
• Installation of pitless equipment
• Well plugging
• Installation of ground heat exchange (GHEX) loop borehole systems (geothermal loops)
• Water well test holes and test wells,
• Dewatering wells and pumping systems
• Monitoring and observation wells.

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