Public water system
Rockford
PWSID IL2010300 - Winnebago County, Illinois
300 PPM
17.5 GPG
Very Hard0Soft60120180300+
Very Hard (300 PPM)Verified - Annual Water Quality Report
System Details
- Water source
- groundwater
- Population served
- 147,051
- Service connections
- 51,060
- Status
- Active
Hardness Evidence
- Reported hardness
- 300 PPM
- Grains per gallon
- 17.5 GPG
- Data source
- Annual Water Quality Report
- Source year
- N/A
- Raw/source estimate
- 317 PPM
Linked City Reports
Served ZIP Codes
| ZIP | Location | ZIP average |
|---|---|---|
| 61016 | Cherry Valley, IL | Very Hard (300 PPM) |
| 61024 | Durand, IL | Very Hard (300 PPM) |
| 61059 | Nora, IL | Very Hard (300 PPM) |
| 61063 | Pecatonica, IL | Very Hard (300 PPM) |
| 61072 | Rockton, IL | Very Hard (301 PPM) |
| 61073 | Roscoe, IL | Very Hard (300 PPM) |
| 61077 | Seward, IL | Very Hard (300 PPM) |
| 61080 | South Beloit, IL | Very Hard (297 PPM) |
| 61088 | Winnebago, IL | Very Hard (300 PPM) |
| 61101 | Rockford, IL | Very Hard (300 PPM) |
| 61102 | Rockford, IL | Very Hard (300 PPM) |
| 61103 | Rockford, IL | Very Hard (300 PPM) |
| 61104 | Rockford, IL | Very Hard (300 PPM) |
| 61107 | Rockford, IL | Very Hard (300 PPM) |
| 61108 | Rockford, IL | Very Hard (300 PPM) |
| 61109 | Rockford, IL | Very Hard (300 PPM) |
| 61111 | Loves Park, IL | Very Hard (301 PPM) |
| 61112 | Rockford, IL | Very Hard (300 PPM) |
| 61114 | Rockford, IL | Very Hard (300 PPM) |
| 61115 | Machesney Park, IL | Very Hard (300 PPM) |
| 61314 | Buda, IL | Very Hard (300 PPM) |
| 61346 | New Bedford, IL | Very Hard (300 PPM) |
| 61426 | Castleton, IL | Very Hard (300 PPM) |
| 61479 | Speer, IL | Very Hard (300 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.