Certified septic pumping companies in Dunn County, WI

✓ 4 companies based in Dunn County, from the Wisconsin DNR licensed septage hauling businesses (retrieved 2026-07-23). Companies based in neighboring counties often serve here too — see the full Wisconsin list.

Company	Location	Certifications	License #
Anderson Sanitation, Llc	Ridgeland, WI	Septage Hauler	2229
Lewis Bjork, Llc	Menomonie, WI	Septage Hauler	2469
Seventy-Nine Septic Llc	Knapp, WI	Septage Hauler	2663
T. L. Sinz Plumbing, Inc.	Menomonie, WI	Septage Hauler	2355

FAQs

How many certified septic pumping companies are in Dunn County?

4 companies in the Wisconsin DNR licensed septage hauling businesses are based in Dunn County as of 2026-07-23. Companies based elsewhere in Wisconsin also commonly serve the county.

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