Green Bay Water Utility filter and testing guidance
Use this only as an interim protection layer when replacement is not immediate and the utility-specific next step is still unresolved.
Filters and testing are interim safety layers. They are not equivalent to a utility-confirmed full replacement path.
Use this only when replacement is not immediate: filter guidance sits below inventory, notice, and replacement decisions. It is not a substitute for line replacement.
Use local utility guidance, then narrow to certified interim protection.
Maintenance tips
Use a certified filter as an interim protection step, not as a replacement for line replacement.
Use testing when it changes the next action or clarifies uncertainty.
Return to the utility lookup if the service-line status is still unclear.
Testing should change the next action, not distract from the utility record.
Official inventory page: https://www.gbwater.org/service-line-lookup-map
Official lookup: https://greenbay.maps.arcgis.com/apps/webappviewer/index.html?id=0b09eb806416406eb25b4c1a8b8a5319
Use the source stack that supports this interim route.
Green Bay Water says residents can use its service line lookup map to view utility-side and customer-side records, including lead GRR unknown and non-lead labels, and can schedule inspections or submit documentation if more information is needed.
Green Bay Water explains what customer-side and utility-side lead GRR unknown and non-lead labels mean, directs residents with lead or GRR lines to municipal replacement contacts, and keeps owners of unknown lines on inspection or documentation follow-up.