InspectAPedia®   -   Search InspectApedia

Photograph of a septic cleaning contractor opening a septic tank for inspection and pumping.Septic System Failure Types, Causes
Online Septic Inspection Course Chapter

  • POST a QUESTION or COMMENT about how to inspect or test septic systems, septic inspection procedures, septic failure criteria, and septic inspection results reporting.

If the inspector understands the types of septic system failures and their causes she will be much better prepared to recognize a current or pending failure during a septic system inspection.

This septic system inspection and testing classroom series explains how septic systems are inspected & tested, from the basics of what a septic system is, what the components of a septic system are, how each component is found and inspected, and what constitutes a septic system failure at each component or step.

InspectAPedia tolerates no conflicts of interest. We have no relationship with advertisers, products, or services discussed at this website.

- Daniel Friedman, Publisher/Editor/Author - See WHO ARE WE?

Types, Causes, and Failure Criteria for Septic Systems: Defining "Failed" Onsite Wastewater Treatment or Disposal

This section lists types of failure of septic system failure by individual system component, the common causes of each septic component failure, and provides defining "septic failure criteria".

More detailed "how to" steps instructing how to inspect specific septic components for signs of failure are discussed at my separate online book chapter in text that compliments material in this

separate article HOW DOES EACH SEPTIC SYSTEM COMPONENT FAIL?

If you link to that book-text, please return to the class-text here using your browser's "BACK" button. Otherwise the reader may be confused about where you are, as the text in this class section below appears later in the book text as well.

In simplest terms, there are two visible septic effluent disposal failures:

Septic odors

may also indicate a system failure or an imminent failure. But such odors may also be produced by defects in the plumbing vent system or other site conditions. Beware, sewer gas contains methane and is explosive if it reaches a dangerous concentration inside a building.

Typical causes range from things that are easy and cheap to repair, to a need for complete system replacement:

However there can also be septic effluent treatment failures that may not be directly visible:

Effluent may not back up or appear on the surface, but if insufficiently treated effluent reaches a private well or any stream or waterway, the environment is being contaminated -- an unacceptable condition.

Historically many people have just worried about disposal. As the quality of drinking water deteriorates in many areas and as population grows in many previously thinly-populated areas, proper treatment has become the real concern for everyone's health.

For example, if there is not sufficient soil between the bottom of the soil absorption system trenches and the local groundwater, the local environment is being contaminated.

Other causes of onsite wastewater disposal system failure

List of Septic System (Onsite Waste Disposal System) Failure Criteria

Massachusetts Title 5 lists specific failure criteria and serves as a good model for septic inspections anywhere.

List of Cesspool Failure Criteria (MA)

List of Drainfield/Soil Absorption System Failures (leach fields, drain fields, seepage pits)

Signs of Failed Drainfield: How Does Each Septic System Component Fail? - What to Look For During a Septic Inspection

See details now found at

Before digging up your septic tank or calling a septic pumper, if you think the septic system is failed because of drain blockage or drains backing up into the building, you should

see DIAGNOSING CLOGGED DRAINS - Is it a blocked drain or the septic system? - A First Step for Homeowners

Please return here using your browser's "BACK" button.


...

Continue reading  at MAINTENANCE NEEDS OF SEPTIC SYSTEMS or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX.

Or see these

Recommended Articles

Suggested citation for this web page

SEPTIC FAILURE CAUSES-course chapter at InspectApedia.com - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice.


Or see this

INDEX to RELATED ARTICLES: ARTICLE INDEX to SEPTIC SYSTEMS

Or use the SEARCH BOX found below to Ask a Question or Search InspectApedia

Ask a Question or Search InspectApedia

Questions & answers or comments about how to inspect or test septic systems, septic inspection procedures, septic failure criteria, and septic inspection results reporting.

Try the search box just below, or if you prefer, post a question or comment in the Comments box below and we will respond promptly.

Search the InspectApedia website

Note: appearance of your Comment below may be delayed: if your comment contains an image, photograph, web link, or text that looks to the software as if it might be a web link, your posting will appear after it has been approved by a moderator. Apologies for the delay.

Only one image can be added per comment but you can post as many comments, and therefore images, as you like.
You will not receive a notification
when a response to your question has been posted.
Please bookmark this page to make it easy for you to check back for our response.
Our Comment Box is provided by Countable Web Productions countable.ca

Comment Form is loading comments...

Citations & References

In addition to any citations in the article above, a full list is available on request.



ADVERTISEMENT