Wisconsin Rural Water Association Presents
 OTM/NN Water System Operator Certification Exam Review
(4 OTM/NN  Credits)

The room will open at 7:30 am with the class starting PROMPTLY at 8:00 am. The class will end at 12:00 pm.

January 28, 2026 ~ Virtual
February 10, 2026 ~ Spooner – DNR Service Center 810 W. Maple St, Spooner, WI, 54810
March 4, 2026 ~ Chippewa Falls – Lake Hallie Municipal Building, 13136 30^th Ave, Chippewa Falls, WI, 54729
May 26, 2026 ~ Plover – WRWA Technology Center, 351 Water Way, Plover, WI 54467
September 17, 2026 ~ Virtual
November 5, 2026 ~ Janesville – WI DNR Service Center, 2514 Morse St. Janesville, WI

Attendees will learn information that will assist them to prepare to take the small (OTM & NN) water system operator certification exam.  This class will cover all areas of operation and maintenance of a small water system including the hydrologic cycle, water chemistry, water system regulations, water contamination & treatment and water system components.

Prerequisite ~ *All Attendees will need a copy of the January 2019 edition of the “Small Water System Operator Certification Manual” prior to the class.  Click on Link for Manual Below.

https://dnr.wisconsin.gov/sites/default/files/topic/DrinkingWater/Publications/DG068.pdf

Pre-Registration is required for this class

*Those preregistered for the VIRTUAL classes will receive an email/invitation at least 1 day prior to the class*

Complete the form below and return to Wisconsin Rural Water Association

Click below for a printable class agenda:

OTM-NN Exam Review 2026