Public water system
St. Johns, City Of
PWSID MI0006300 - Clinton County, Michigan
435 PPM
25.4 GPG
Very Hard0Soft60120180300+
Very Hard (435 PPM)Estimated - Nearby Data
System Details
- Water source
- groundwater
- Population served
- 7,896
- Service connections
- 3,012
- Status
- Active
Hardness Evidence
- Reported hardness
- 435 PPM
- Grains per gallon
- 25.4 GPG
- Data source
- Nearby estimate
- Source year
- N/A
Linked City Reports
Served ZIP Codes
| ZIP | Location | ZIP average |
|---|---|---|
| 48879 | Saint Johns, MI | Very Hard (435 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.