I/A System Maintenance in Western MA

Innovative and alternative (I/A) septic systems are engineered solutions approved by the Massachusetts Department of Environmental Protection for use in situations where a conventional Title 5 system won’t work — typically due to high groundwater, poor soil conditions, setback limitations, or the need for enhanced nitrogen or pathogen removal. Common I/A systems installed in western Massachusetts include Presby EnviroSeptic, Bioclere treatment units, Orenco AdvanTex systems, and various pressure-dosed or drip irrigation systems. If your home has one of these, ongoing maintenance isn’t optional — it’s required by state regulation.

Under 310 CMR 15.285, all I/A systems must operate under a formal Operation and Maintenance (O&M) agreement with a licensed operator. The operator is responsible for inspecting the system on a schedule specified by the system’s approval — at minimum annually, and sometimes quarterly or semi-annually depending on the technology. After each inspection, the operator submits a report to the local Board of Health. If your O&M contract lapses, you’re technically out of compliance with Title 5, which can become an issue during a property sale or if your town conducts compliance checks.

What happens during an I/A maintenance visit depends on the type of system. For a system like a Bioclere, the technician will inspect the aeration unit, check media condition, test dissolved oxygen levels, and verify the pump and controls are working. For a Presby EnviroSeptic system, they’ll check distribution and look for signs of overloading or surfacing. For pressure-dosed systems, they’ll inspect the pump, dose volume, timers, and alarm function. Any system with electrical components will have those checked as well.

The annual O&M contract fee typically runs $150–$300, covering scheduled inspection visits and report filing. If the technician identifies a problem — a failed pump, a clogged component, a malfunctioning control panel — repair costs are separate and vary depending on what’s needed. Because I/A systems have more moving parts than conventional gravity systems, they also have more potential failure points. Having an experienced operator who knows your system type is worth prioritizing over simply finding the lowest price.

If you’ve purchased a home with an I/A system and you’re unsure whether an O&M contract is in place, check with your local Board of Health. They maintain records of required O&M agreements. Letting the contract lapse — even accidentally after a home sale — can result in a compliance notice from the BOH. Getting back into compliance is straightforward, but it’s better to stay on top of it from the start.