Public water system
Onida
PWSID SD4600233 - Sully County, South Dakota
533 PPM
31.2 GPG
Very Hard0Soft60120180300+
Very Hard (533 PPM)Estimated - Nearby Data
System Details
- Water source
- surface water
- Population served
- 658
- Service connections
- 410
- Status
- Active
Hardness Evidence
- Reported hardness
- 533 PPM
- Grains per gallon
- 31.2 GPG
- Data source
- Nearby estimate
- Source year
- N/A
Linked City Reports
Served ZIP Codes
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.