Information for public water system owners and operators
“Public Water System” means a system for the provision to the public of piped water for human consumption, if such a system has at least 15 service connections or regularly serves an average of at least 25 individuals daily at least 60 days out of the year.
Types of public water systems
A public water system can either be a community system, like a municipality, mobile home park or subdivision; or a non-community system, like a school, factory or wayside (see diagram). If you provide drinking water to the public and your water system meets the definition stated above, you're a public water system owner/operator.
- Operator Handbook (For Other-than-Municipal and Non-Transient, Non-community Water Systems)
- Owner/Operator Handbook (For Transient, Non-Community Water Systems)
Wisconsin administrative codes for public water systems
|Municipal||Other than Municipal (OTM)||Non-Transient||Transient|
Safe Drinking Water
Operation/Maintenance of Public Water Systems
Operation/Design of Community Water Systems
Well Construction and Pump Installation
Electronic monthly operating report
The electronic monthly operating report (eMOR) is an online tool for reporting monthly pumpage, chemical addition, treatment at public water systems and other information as required by DNR. Monthly reporting is a requirement for all municipal water systems and some other qualifying water system types, per NR 810.07, Wisconsin Administrative Code . Only a certified operator for the water system can submit the report. However, staff associated with the system who are not certified operators can enter data with the permission of the certified operator. Monthly reports are due within 10 days from the end of the month for which the data is reported. For example, data from July must be submitted by the 10th day of August.
Access to eMOR
Users will need a WAMS ID and to request access to the report through the DNR Switchboard. Staff who are not certified operators also need to complete an additional step of obtaining data entry access permission from the certified operator. After the switchboard registration is submitted, the registrant will receive an email with a PDF signature page for the certified operator to sign for approval.
For questions about accessing the eMOR, please contact DNRPublicWaterApplicationSupport@Wisconsin.gov.
For questions about entering or submitting information for the eMOR, please contact your system's DNR representative.
Lead and copper
Lead and copper forms and information
- CWS MC/OTM lead & copper sampling & compliance guide
- Non-community lead & copper sampling & compliance guide
- Consumer notification requirements
- Consumer notification form - MC
- Consumer notification form - OTM/NN
- Certification of consumer notification form
- Understanding test results - 90th Percentile
- Homeowner Tap Sample Collection Procedures
- Lead & Copper Monitoring Site Plan Change Request Form 3300-315