I/A system owners have the responsibility of keeping their system operating correctly at all times in order to be in compliance with state and local regulations.

About Sampling

About Sampling

Sampling and analysis of wastewater treatment system (WWTS) effluent is an important step in the verification of the proper functioning of the system.

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About Inspections

About Inspections

I/A systems require maintenance to run properly. Find out what I/A maintenance entails and why you have to do it.

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Missing Reports

Missing Reports

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Contract Requirements

Contract Requirements

The Operation and Maintenance (O&M) requirements for I/A systems are often complicated, with various inspection and sampling events required at various intervals throughout the year and all imposed...

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Frequently Asked Questions

Frequently Asked Questions

If you have an I/A system installed or are looking to buy a property with an I/A, you'll want to check here to get some quick answers.

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Licensed Contractors

Licensed Contractors

Find a licensed Operation and Maintenance company to service your system.

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MADEP Guidance

MADEP Guidance

I/A systems perform well when they are designed, installed, operated, and maintained in accordance with the technology specifications and MassDEP’s technology approval. However, I/A systems require...

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