Public water system
Fairfield Water Supply
PWSID IA5131033 - Jefferson County, Iowa
205 PPM
12 GPG
Hard0Soft60120180300+
Hard (205 PPM)High Confidence - USGS Monitoring
System Details
- Water source
- groundwater
- Population served
- 9,821
- Service connections
- 5,250
- Status
- Active
Hardness Evidence
- Reported hardness
- 205 PPM
- Grains per gallon
- 12 GPG
- Data source
- USGS monitoring
- Source year
- N/A
Linked City Reports
Served ZIP Codes
| ZIP | Location | ZIP average |
|---|---|---|
| 52556 | Fairfield, IA | Very Hard (289 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.