Septic System Consultants Directory

How to Find a Septic Contractor in the U.S., Canada, & the U.K.

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Reader Q&A - also see RECOMMENDED ARTICLES & FAQs

Question: Which states in the U.S. require septic designer licensing - input wanted

I am a licensed OSS designer in WA state. I am curious which other states license septic system designers? I couldn't find this answer anywhere but your site attempted to list regulations state by state, so I am wondering if you have that answer?

Thank you for your time,

Tyler Wilson
Polymer Land Consultants
370 N East Camano Drive
Suite 5, #106
Camano Island, WA 98282 - 2021/06/11 by private email

Moderator reply: many states permit septic design by a professional engineer or architect without a separate septic-designer license

Nice question. I suspect but don't know, that most US states license OSS designers; to get a credible answer we'd need to contact each state authority or scan their regulations.

The answer isn't going to be that clear.

For example, in New York - at least for some regulations at which I took a quick look - instead of specifying a separate license for septic designers or septic engineers, the municipalities (like Westchester) simply refer to "professional engineers and and licensed architects"

The terminology presumes that a "PE" in fact is already licensed by the state.

My OPINION, in clarification, is that a PE ought to be practicing within his or her area of specialization. An EE ought not be designing septic systems, but from my first hand experience, I can tell you that until there is a problem, dispute, and lawsuit, nobody is minding that store.

Reader follow-up:

Yea, since the answers are not apparent, it may be easiest to crowd source the answer like you suggest?

I know in Idaho - as of about 20 years ago - the county environmental health people would design septic systems for private homeowners - no private design licensing at all.

Anyway, thank you for the info, and link me to that question if you ever have it posted.

On 2021-01-31 by (mod) - how to find a septic engineer in your county or province or area

Nathaniel: this map lists a number of septic engineering companies around Sonoma County CA - [Click to enlarge any image]

On 2021-01-31 by Nathaniel Pagel

Interested in a septic designer for drip, mound or other system for land that failed a perc test in 1991 in Sonoma County CA. designate@mindspring.com

On 2020-06-08 by (mod) - Maryland septic design engineers

Sorry Yvette but I don't have a specific recommendation.

Check our Maryland septic consultant/engineer listings above or try a simple web search such as "septic design engineers La Plata Maryland"

On 2020-06-08 by Yvette

I’m looking for a reliable and experienced septic system consultant and designer to design an innovative system for a residential property in La Plata, MD. Any recommendations?

On 2020-03-24 by (mod) - efforts to "rejuvenate" seepage pits

Thanks for the question, Chris.

Unfortunately, the answer is NO. While there are efforts to "rejuvenate" seepage pits (properly in your case it's a cesspool if it's taking sewage, not just graywater), the way these pits work is simply to allow effluent to seep out of the pit bottom and sides into the surrounding soil. As the soil clogs with biomat and oils and grease the pit's ability to discharge water is reduced until ultimately the pit begins to fill.

When a cesspool is near the top it's done, shot, finished, kaput. You might "rejuvenate" for a bit of added life (though doing so can also be very dangerous and risk pit collapse), but you should figure you need a new effluent disposal system.

More regretful news: seepage pits, because they disperse effluent more deeply into soil than a conventional drainfield, do not adequately treat wastewater (there's not enough oxygen deep in the soil so there's not enough bacteria to break down pathogens in the wastewater).

For that reason most jurisdictions no longer permit this method of sewage "disposal" - you may need to install a more-effective septic system soon.

See details at

CESSPOOLS https://inspectapedia.com/septic/Cesspool_Guide.php

CESSPOOL FAILURE CRITERIA https://inspectapedia.com/septic/Cesspool_Failure.php

CESSPOOL SAFETY WARNINGS https://inspectapedia.com/septic/Cesspool_Safety.php

On 2020-03-24 by Chris H

I recently had my septic tank emptied and the techinician said my seepage pit is not working. I never had that emptied. Is that something I should have done as well to avoid a major expense of a new septic system?

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Septic System Design Codes & Regulations Articles

• SEPTIC CODES & REGULATIONS
• SEPTIC CONSULTANTS, DESIGNERS, ENGINEERS
• SEPTIC SOIL & PERC TESTS
• SEPTIC SYSTEM DESIGN ALTERNATIVES - home
• SEPTIC SYSTEM DESIGN BASICS - home
• SEPTIC SYSTEM DESIGN REGULATIONS
• ALTERNATIVE DESIGN SEPTIC SYSTEM SUPPLIERS
• SEPTIC TANK PUMPING SCHEDULE
• TYPES OF SEPTIC SYSTEMS - master list
• U.S. SEPTIC AUTHORITIES & DESIGN SPECIFICATIONS
• WATER QUANTITY USAGE TABLES

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