License
- Webpage
Waterworks operator certification
Municipal waterworks operators work at community water systems that are owned by, or serve, a city, town, village, county or other municipality. Also included in this definition are county or state-owned public institutions for congregate care or…
- Webpage
Landfill operator certification
Chapter NR 524, Wisconsin Administrative Code was created as authorized by ss. 289.06, 289.42, and 227.11 (2), Wis. Stats., which contain the requirements for the department to develop a program of certification for persons participating in, or…
- Webpage
Incinerator operator certification
Wisconsin Administrative Code ch. NR 499 was created as authorized by ss. 285.51, Wis. Stats., which establishes a program for the department to develop a program of certification for persons participating in, or responsible for, the operation of…
- Webpage
Forms
Note: Some web browsers do not open PDF files on their own. If you experience trouble opening or filling out a PDF form, visit the DNR PDF help for instructions on how to successfully open PDF forms.
- Webpage
Exams
Wisconsin DNR's Operator Certification program will be hosting in-person paper exams coordinated and facilitated by Wisconsin DNR staff in 2026.Exams will be held approximately three times a month, every other month. All 2026 exam dates and…
- Webpage
Licenses and registrations
In briefDriller license application process:Water wellHeat exchangeLicense application forms:Pump installer exam (no experience required)Driller licenseWater well: 3300-014I / 3300
- Webpage
Information for private well owners
Private wells are wells that are not part of a public water supply. Private wells have fewer than 15 connections and serve fewer than 25 people. They are usually wells that serve a single home or farmhouse. Unlike public water systems, protection…
- Webpage
Information for drillers and pump installers
This page contains information and resources for well drillers, heat exchange drillers and pump installers. NewsBitsArchives of NewsBits - an electronic newsletter for Wisconsin drillers and installers.Well driller viewer
- Webpage
Wisconsin drilling and pump installing service directories
The links below provide access to drilling and pump installing professional service directories. Individuals and businesses listed are authorized by the Wisconsin DNR to engage in activities designated by the directory.Well drilling services [XLSX]…
- Webpage
Heat exchange drilling (geothermal systems)
Heat exchange drilling in Wisconsin requires a license.