Licensing Guides
Wyoming Septic License: How to Become a Septic Contractor in Wyoming
Septic, WY
October 1st, 2026
Table of Contents
Septic License Requirements in Wyoming
We all need safe, reliable sewage management for our homes and businesses. Those homeowners and businesses that rely on septic tanks, also known as small wastewater systems in Wyoming, depend on people who know how to install and maintain those systems to safeguard the water supply and enhance public health.
There are 30,650 septic tank servicers and sewer pipe cleaners nationwide according to the Bureau of Labor Statistics (BLS), and Wyoming employs 90 of them. Employment is projected to grow 8% from 2024 to 2034 across the country, adding about 2,900 openings a year. In Wyoming, that growth rate is expected to be 10% from 2022 to 2032, according to CareerOneStop, the U.S. Department of Labor's job search website.
If you're thinking about starting a septic business or working in the field, you need to know the requirements in your state or local jurisdiction. This guide will help you determine what you need before you get started.
Is a license required to work on septic systems in Wyoming? Yes. To operate a small wastewater treatment facility, you must hold an Operator certification issued by the Wyoming DEQ Water Quality Division. Installation is handled through a permitting process, and DEQ is the direct permitting authority in Campbell, Carbon, Niobrara, Platte, and Weston counties, while the remaining counties administer their own small wastewater programs under delegation agreements. Working on or installing a system without the required certification or permit is a violation of the Wyoming Environmental Quality Act.
The Wyoming Department of Environmental Quality (DEQ) Water Quality Division authorizes permits to construct small wastewater facilities, as defined by Wyoming Statutes 35-11-103(c)(ix), that are located in Campbell, Carbon, Niobrara, Platte, and Weston counties where DEQ is the permitting authority.
The DEQ issues delegation agreements for small wastewater regulations at the county level for the rest of the state. Some counties have a licensed installer program, and many have separate regulations for property owners who install their own treatment systems.
A small wastewater system permit is required for the installation of septic systems. All site locations must undergo a percolation test, a review from the Planning & Zoning Commission, and receive final approval from the District Engineer.
Types of Septic Licenses in Wyoming
At the state level, Wyoming offers an Operator certification for small wastewater treatment facilities. The amount of required training is dependent on the type of wastewater system.
Operators are responsible for the daily operation and upkeep of wastewater treatment plants and related infrastructure. This encompasses tasks such as monitoring equipment, performing routine maintenance, and ensuring all components function correctly.
Wyoming certifies operators by the type and level of facility they run, so your certification must match the system you work on. According to the DEQ operator certification program, the wastewater categories include:
Small Systems, Lagoon System — for lagoon-based systems and their collection lines, verified through a single Lagoon System exam.
Wastewater Treatment Plants, Levels 1 through 4 — for mechanical and package treatment plants. You start at Level 1 and advance to higher levels as you gain experience.
Collection Systems, Levels 1 and 2 — for the pipes and infrastructure that carry wastewater to treatment. You start at Level 1.
Every level requires you to pass the exam for that category, and higher plant and collection levels build on the level below, giving operators a clear progression path.
Benefits of Getting a Septic License in Wyoming
Earning your Operator certification does more than keep you compliant. It opens the door to a stable, in-demand career. Key benefits include:
Legal authority to operate small wastewater treatment facilities in Wyoming.
Proof of skill and experience that employers and customers can trust.
Eligibility to bid on public and municipal wastewater contracts.
Higher earning potential as you advance to higher certification levels.
Confidence that the systems you maintain protect Wyoming's water supply and public health.
Steps to Get a Septic License in Wyoming
Meet the minimum experience and training requirements for the type of system you will work on.
Pass the certification exam. Find additional information about exams here.
Complete the small wastewater application package online.
What Is the Mean Wage for a Septic Professional in Wyoming?
Septic tank servicers and sewer pipe cleaners in Wyoming earn an annual mean wage of $49,580, close to the national mean of $53,500. The mean is the average of all wages in the field, while the median, the midpoint where half earn more and half earn less, is $47,520 in Wyoming.
Pay rises with experience and certification level. In Wyoming, the lowest 10% of workers earn about $37,550 a year while the top 10% earn about $63,320, according to the BLS wage data. Location, years on the job, higher certification levels, and business ownership all influence where you land in that range.
How Much Does It Cost to Get a Septic License in Wyoming?
There is no exam fee or application fee associated with the wastewater program. However, some of the approved training courses incur a fee. The American Water College offers training programs that range $179 to $350.
If you plan to install systems in a county that runs its own licensed-installer program, budget for any separate county application or exam costs. For example, Laramie County administers its own Licensed Small Wastewater System Installer program with its own permitting process.
What Business Owners Need to Know
Getting the most out of a septic installation technician, no matter where they are in their licensing journey, takes work. ServiceTitan cloud-based, all-in-one septic business software gives technicians and business owners the technology they need to do the work efficiently, and the data they need to do it smartly.
SMS communications that keep customers informed about the technician's visit.
Location-specific service history, including recorded calls, accessible from the mobile app.
Required forms that ensure every job is done right, driving consistency.
The ability to build multi-option proposals with photos, on-site, in minutes.
Sales presentations that make conversations with customers easier and drive the average ticket.
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To learn more, schedule a demo with a product expert today.
How to Get a Septic License in Wyoming
The path to becoming a certified operator in Wyoming is straightforward once you know the steps:
Set up an account in the Wyoming Operator Certification database and get your operator ID.
Submit proof of high school equivalency, such as a high school transcript, GED, DD-214, or college transcript.
Have your supervisor designate you as an operator within 10 days of starting in that role, and gain the required verifiable work experience for your certification level.
Schedule and pass the certification exam for your facility type and level.
Complete the small wastewater application package to finalize your certification.
You must live or work as an operator in Wyoming to certify, and operators certified in good standing in another state may qualify through reciprocity.
How Long Does it Take to Get a Septic License in Wyoming?
The amount of training depends on the type of system you work with. According to the Wyoming DEQ operator certification program, the most basic certification for small wastewater systems requires six months of verifiable work experience along with 35 hours of instructional training.
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Wyoming Septic Training Programs and Schools
The Wyoming DEQ offers several training opportunities for certified Operators, including in-person and virtual training courses. You can find a list of training providers on the DEQ website.
In-state providers whose courses are recognized for continuing education credit include the Wyoming Association of Rural Water Systems, which runs training courses and conferences for operators across the state. Casper College also serves as a testing site for the certification exam.
Wyoming Septic Licensing Exam Details
Exams are issued by PSI, and you must score at least 70% to pass, according to the Wyoming DEQ exam requirements. If you take the exam before meeting your experience requirements, you have two years to earn the required experience. Click here to schedule an exam.
You schedule the exam online through the DEQ exam page using your five-digit Wyoming operator ID, and testing is available at PSI centers in Casper, Cheyenne, Green River, and Casper College, among others. If you do not pass, you may retake the exam, but you must wait 30 days between attempts.
How Can I Prepare for the Septic License Exam in Wyoming?
Preparation starts with the study materials DEQ organizes by topic, such as lagoon operation and maintenance and sewer collection operation and maintenance. The DEQ study materials page lists the reference documents tied to each exam category. Focus your study on the facility type you plan to operate, take the continuing education and training courses offered by the DEQ and approved providers, and use a non-programmable scientific calculator, which is permitted during the exam.
Do I Need to Renew My Wyoming Septic License?
Yes, all certified Operators must renew their licenses every three years. To qualify, you must obtain 24 hours of continuing education every three years.
Renewals are due by December 31 on the three-year cycle. If a hardship prevents you from renewing on time, the DEQ Administrator may grant an extension of up to two years, according to the operator certification rules. Let a certification lapse and you will need to make up eight hours of continuing education for each year past termination, up to 24 hours, and pass an exam at your certification level to reinstate.
Does Wyoming Reciprocate Septic Licenses?
Yes, Wyoming allows reciprocity with any state where the training is equal to that of Wyoming. Under the DEQ operator certification rules, the DEQ allows reciprocity if "The Administrator has received a letter of good standing or similar verification from the regulatory agency that issued the current certification stating the name of the applicant, status of their certification, date originally issued, expiration date, level and area of the certification, and any disciplinary action imposed against the applicant."
National Septic Certifications
Other certifications can help you demonstrate your proficiency to potential employers and clients. The National Association of Wastewater Technicians and The National Onsite Wastewater Recycling Association offer certifications. Those and other professional certifications are not required but can add to your marketability and therefore increase your opportunity to make more money.
Other Requirements Unique to Wyoming
Wyoming's biggest wrinkle is that installation rules are handled at the county level in most of the state. DEQ is the direct permitting authority in Campbell, Carbon, Niobrara, Platte, and Weston counties, while other counties run their own small wastewater programs under delegation agreements. Some counties require a separate installer license. Laramie County, for example, licenses small wastewater system installers, while Teton County requires systems to be designed by a licensed Wyoming professional engineer. Always confirm the rules in the county where you plan to work before you start a job.
Are There Septic Scholarships in Wyoming?
Wyoming offers workforce funding that can help cover the training behind a wastewater career. The Wyoming Works program provides standard grants of up to $2,360 per academic year and critical-workforce grants of up to $4,720 per academic year for students in approved technical programs. The Hathaway Scholarship supports Wyoming residents attending the state's community colleges and the University of Wyoming. On the trade-association side, the National Association of Wastewater Technicians offers the William Hapchuk Memorial Scholarship for students pursuing a wastewater-related degree.
How Can Someone Verify My Septic License in Wyoming?
Anyone can confirm an operator's certification through the DEQ's Check Operator Records tool. Search by the operator's last name to view certification status. The same page lets you check facility records and locate a contract operator by nearby town, which is useful for homeowners and businesses hiring for a job.
When Can a Septic License Get Suspended in Wyoming?
An Operator certification can lapse or be lost for several reasons, including failing to complete the required continuing education, failing to renew on the three-year cycle, or violating the standards in the DEQ operator certification rules. Serious violations of the Wyoming Environmental Quality Act can also lead to enforcement action. This information is general and is not legal advice, so check with the Wyoming DEQ for guidance on a specific situation.
What Are the Penalties for Unlicensed Septic Work in Wyoming?
Operating or installing a small wastewater system without the required certification or permit violates the Wyoming Environmental Quality Act, and the penalties are steep. Under Wyoming Statute 35-11-901, a violation can carry a civil penalty of up to $10,000 per day. A knowing violation can bring a criminal fine of up to $25,000 per day or up to one year in prison, and a subsequent conviction can raise that to a fine of up to $50,000 per day, imprisonment of up to two years, or both. The state can also seek an injunction to stop the work. This information is general and is not legal advice.
Continuing Education
Wyoming requires all Operators to obtain 24 hours of continuing education every three years. All training must happen at a DEQ-approved facility.
Resources
You can stay up to date on all septic industry news several ways:
Check top septic blogs, including ServiceTitan's blog.
Read about the latest industry trends, and discover ideas on how to grow your septic business.
Listen to top septic podcasts like ServiceTitan's "Toolbox for the Trades" podcast.
The states have licensing requirements for other trades, too. You can find out more about how to get an HVAC, plumbing, electrical, or contractor license in Wyoming, or in any of the other 49 states and the District of Columbia through the ServiceTitan Licensing Hub.
