Hi! Welcome to nhperctests.com, a site providing information on perc tests and septic designs complying with New Hampshire Dept. of Environmental Services regulations.


To arrange to have a perc test and septic design for any piece of land in New Hampshire, E-mail: David@electriciansparadise.com


NH State Laws Pertaining to Septic Systems --

New Hampshire State Law, RSA 485, provides that the NH Department of Environmental Services shall enact a set of rules governing the design, construction and maintenance of all septic systems built in the state, both residential and commercial.

Before construction of any home or other building that is to have a water supply and plumbing is to begin, a set of plans for the waste disposal system has to be submitted to NH DES and has to be approved.

The plan has to be drawn up and stamped by a licensed septic designer (except that the owner can do his or her own plan for a primary residence only -- not second or vacation home, rental property or commercial building).

The septic design is based on field observations including test pit (dug by a backhoe), perc test and site evaluation.

The design has to show the type and size of the system, location of the house, driveway and well, elevations based on transit shots, and other relevant information.

After the design is approved by the state, construction of the building and disposal system may begin. The construction approval is good for four years.

Typically, the septic system is built by a licensed installer while the building is under construction. When the septic system is finished, the installer calls NH DES and requests an inspection. The inspector, armed with a copy of the approved plan, visits the site and inspects the system for workmanship and conformity with the design.

If the system is OK, the inspector issues an occupancy approval and the building can be occupied and the septic system can be used. If there are problems with the system, the inspector itemizes all defects and the installer has to make whatever changes are needed and call for a re-inspection.

Complete text of the New Hampshire Code of Adminstrative Rules Env-Ws 1000 is available at NH DES website

This site is created and conducted By David Herres, NH Septic Designer License 00512. NH Septic Installer License 01249, NH Master Electrician License #11335M

To arrange to have a perc test and septic design for any piece of land in New Hampshire, E-mail: David@electriciansparadise.com


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