New Hampshire
To design and install an Enviro-Septic® System you will need both the design and installation manual and the state attachment. Inside the state attachment you will find the state approval for the Enviro-Septic® System as well as design and installation information specific to New Hampshire.
Certification Training Classes
Presby Environmental strongly encourages all those involved in the design, installation or permitting of an onsite Enviro-Septic® System to attend a certification course. Certification is required for those who design or install Multi-Level™ Enviro-Septic® Systems. To view the class schedule and certification options available click here.
CEUs May Apply
GSDI is offering 4 CEUs for Certified Septic Evaluators who have taken our certification course. This is for a one-time use. Those who have taken credit for the course cannot take the course again and claim the credit again. Note: These credits are not recognized by the State, at this time, to meet the 6 contact hours needed for licensed designers and installers next renewal (Dec. 2010).
Enviro-Septic®
- New Hampshire grants New Innovative/Alternative Technology Approval allowing a 30″ vertical separation distance to seasonal high water table, bedrock or other impermeable surface. Enviro-Septic® design plans already approved with a 36″ separation distance may be amended by the designer to reflect a 30″ separation distance without submitting a new application to NHDES (if system size and location are not changed). Designers must incorporate a note reflecting this revised ITA Approval on all Enviro-Septic plans. Click here for more information (PDF file)
Bypass Venting alternative to Differential Venting
(Differential venting is required for systems utilizing a pump to gain elevation to the field)
Flow Equalizers
When do we require flow equalizers and what type is allowed?
A flow equalizer is always required on distribution box outlets whenever the flow is being divided. If only one outlet of a distribution box is being used, a flow equalizer is not required. Our preference is that the Polylok® flow Equalizer® be used, which is claimed to maintain equal flow even when the distribution box shifts over time and becomes out-of-level. However, our manual does allow the use of other equivalent devices. When pumping to a distribution box the same rule would apply; if only one distribution box outlet is being used, no flow equalizer is required. (Reference: Enviro-Septic® & Simple-Septic® Leaching Systems Design and Installation Manual, pages 5, 16)