Public water system
Mackinac Island
PWSID MI0003970 - Mackinac County, Michigan
160 PPM
9.4 GPG
Moderately Hard0Soft60120180300+
Moderately Hard (160 PPM)Estimated - Nearby Data
System Details
- Water source
- surface water
- Population served
- 583
- Service connections
- 662
- Status
- Active
Hardness Evidence
- Reported hardness
- 160 PPM
- Grains per gallon
- 9.4 GPG
- Data source
- Nearby estimate
- Source year
- N/A
Linked City Reports
Served ZIP Codes
| ZIP | Location | ZIP average |
|---|---|---|
| 49757 | Mackinac Island, MI | Moderately Hard (160 PPM) |
How to Use This System Page
A public water system can serve multiple ZIP codes and cities. Use this page to inspect the source behind the hardness reading, then open the linked ZIP or city page for the local rollup.
If you are sizing treatment equipment, confirm your actual tap hardness with a home test or lab test before buying.