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Certified Wastewater Specialists

Friendly and Knowledgeable Staff

Prior to working on any customer job site, or dealing with any customer issue, every Fiedler Pumping team member receives extensive training. Our technicians and office staff begin their careers at Fiedler’s with a minimum of three months orientation to their responsibilities prior to being on their own in their job duties.

Continual Learning

In addition to this training, all employees are required to further advance within one year of hire. They complete this education through the University of Minnesota SSTS Program or the Minnesota Onsite Wastewater Association. These programs allow employees to become certified wastewater specialists which will ensure they are able to assist the company in managing any of your wastewater needs.


Fiedler Pumping Team Illustration


Team Member Photo - Jeff and Cindy

Cindy Tiemann & Jeff Tiemann

President & Office Manager | Vice-President & Field Service Manager

Jeff and Cindy have been owners of Fiedler Your Pumping Specialists, Inc. since 2010.


Working on farm equipment for over 30 years and subsequently taking over the family farm provided Jeff with the experience and knowledge needed to keep a fleet of this size running. Therefore, Jeff’s crop management knowledge, along with his maintainer training and certification, prepared him well for managing the company’s land application process.


Cindy currently holds certifications from the MPCA as a Type 4 wastewater operator, Maintainer and Service Provider. Additionally, Cindy brings a Master’s degree and over 30 years of nursing management experience to her role on the business side of Fiedler’s


In 2012, Fiedler’s Your Pumping Specialists, Inc moved the business from Rice to Jeff and Cindy’s home farm. This move made it possible for the couple and their son Kenton to more easily manage their crop farming operation. Along with crop farming, they raise poultry under a contract with Pilgrims Pride and have a herd of Black Angus Cattle.

If they ever have free time, they enjoy spending time having fun with their children and grandchildren.

Team Member Photo - Bree

Bre Vaillancourt

Scheduling Supervisor, Marketing & Quality Assurance Manager

Bre holds a Bachelor’s Degree in Business Management with a primary focus on quality improvement. She has been with Fiedler’s for over 12 years and is certified as a Type 4 wastewater operator by the MPCA. In addition to scheduling, Bre manages the accounts receivable for the company.

Further, Bre handles Fiedler’s community service projects and acts as company liaison for donation requests. Therefore, Bre’s experience and training make her more than qualified to answer ANY wastewater question!

When Bre is not helping our customers, she is either camping or at home enjoying time with her husband and their three exceptional, very energetic children

Team Member Photo - Darrel

Darrell Dobis


Darrell came to Fiedler’s in 2014 with a long truck driving history. Darrell completed MPCA’s introductory and maintainer certification classes and testing and requested additional new technologies training. He also enjoys educating clients about septic systems and has positive customer reviews related to his attention to detail and explanation while on the job. Customers who have never had a septic system appreciate this information!

When Darrell is not working, he keeps busy making gourmet meals that make everyone here envious. He also enjoys spending as much time with his grandchildren, family, and friends as possible.

Team Member Photo - Mike

Mike Geise


Mike has been with Fiedler’s since 2015. Prior to working here, Mike had over 20 years in the trucking and customer service industries. Mike’s long history of exemplary customer service and sales knowledge shines through with the number of customers who call in requesting him by name year after year! If you are lucky enough to have him on your job, ask him what side job he is doing. He may tell you something interesting!

In his rare “free” time, Mike enjoys spending time with family, his children, grandchild and many friends.

Team Member Photo - Art

Art Betker

Customer Service Liaison | Certified Maintainer

Art has been with Fiedler’s since 2010. He is the company’s “go to guy” when it comes to specialty wastewater treatment systems. He holds a Class C certificate in wastewater management and certified by the MPCA as a maintainer. What’s more, Art manages any immediate customer concerns and is usually the first person on the scene when additional assistance on a job site is needed. He is always busy helping family and friends and seems to know everyone!

When Art isn’t working on specialized septic system issues for us, he enjoys traveling down south to hunt or help friends with their home improvement projects.

Team Member Photo - Roger

Roger Schraut


Roger Schraut has been with Fiedler’s since 2019. Roger came to Fiedler’s with a strong work ethic and a lengthy background in the construction industry. He has completed his introductory and maintainer courses and other classes for advanced technologies. Moreover, Roger has received many positive reviews from customers who have stated he is easy to talk to and is great at explaining systems to them. Ask Roger if there is any news to share!

In the times Roger is not working on the septic side of life, he enjoys working on the farm side with Jeff. Roger also enjoys spending time with his family, especially his grandchildren and parents.

Team Member Photo - Kenton

Kenton Tiemann

Maintainer-Service Division

Kenton provides part-time mechanic work and assists with service work in the winter for the company. Furthermore, Kenton takes care of the outside maintenance and winter snow removal and goes on service calls in the winter to assist with thawing frozen lines. He has attended introductory and maintainer courses and has passed all of his testing.

Kenton enjoys hanging out with friends, his Blank Angus cattle, and his lovable dog Milo in his downtime.

Jeff Gerads


Jeff started with Fiedler in 2021 and is the newest member of the team here at Fiedler’s. He has already completed testing and obtained his CDL. 

Additionally, Jeff has completed MPCA introductory and maintainer training through the MPCA introductory and basic maintainer training. You may see Jeff working more on the service division as he enjoys troubleshooting and working with new technologies. 

When not working and learning here with us, Jeff enjoys spending time with his wife, family and Friends.

Septic Maintenance Specialists Team Fiedler Leadership
Septic Maintenance Specialists Team Septic Pumping Staff
Septic Maintenance Specialist
Septic Maintenance Team Truck
Team - Wastewater Specialists
Certified Wastewater Specialists
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Team Certified Wastewater Specialists
Septic Maintenance Specialists Team Wastewater Truck

Minnesota Certified Wastewater Specialists



A team of certified wastewater specialists servicing residential, commercial, and industrial wastewater and septic services, including pumping, repair, maintenance, as well as frozen septic line jetting.