Water TestingClean drinking water is the basic essential to good health

The Oneida County Health Department promotes annual well water testing for homeowners and renters. Well testing is free to low-income families with pregnant woman and infants. Unsafe water test results are referred to the Wisconsin Department of Natural Resources if the situation cannot be handled by the Health Department.  The Health Department and the DNR work with homeowners and renters on resolving well problems.


Water Issues

  • Blue-Green Algae

Algal Blooms in Wisconsin  (article from Wisconsin People & Ideas magazine)

Blue Green Algae – information from the Department of Natural Resources (DNR)

Blue Green Algae – information from the Department of Health Services (DHS)



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Categorized as Environmental Health

Contact Us

Oneida County Health Department
100 West Keenan Street
Rhinelander, WI 54501
Hours: 8:00am - 4:30pm Mon-Fri

Telephone (715) 369-6111
Fax (715) 369-6112


To report a public health emergency or to report a notifiable disease after hours, please contact dispatch at 715-361-5100.

Click here to view map and additional contact information.


Mental Health Crisis? Forest, Vilas and Oneida County Hotline: 1-888-299-1188.

Break free of cigarettes. Get help. Call 1-800-QUIT-NOW.

Stress, anxiety, and other depression are common after a disaster. Call 1-800-985-5990 or visit the Disaster Distress Line to talk to someone.