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Granite State Designers and Installers Association is New Hampshire's trade association for those working with on-site subsurface wastewater disposal systems. This website provides background about the organization and useful information for homeowners such as the care and maintenance of septic systems and how to find a qualified septic designer, installer, and evaluator.  Professionals will find links to all rules and laws concerning septic systems as well as a complete listing of a calendar of events.

The latest from the NH Office of Professional Licensure and Certification about the licensing of septic evaluators in NH!

 The NH Office of Professional Licensure and Certification has recently set up the following website for the program. The administrative rules to run the program are currently under development.

 https://www.oplc.nh.gov/septic-evaluators/index.htm

 

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Welcome to Granite State Designers and Installers : Granite State Designers and Installers