Public water system
St John Water District 3
PWSID LA1095007 - St. John The Baptist Parish County, Louisiana
18 PPM
1.1 GPG
Soft0Soft60120180300+
Soft (18 PPM)Estimated - Nearby Data
System Details
- Water source
- groundwater
- Population served
- 31,965
- Service connections
- 10,655
- Status
- Active
Hardness Evidence
- Reported hardness
- 18 PPM
- Grains per gallon
- 1.1 GPG
- Data source
- Nearby estimate
- Source year
- N/A
Linked City Reports
Served ZIP Codes
| ZIP | Location | ZIP average |
|---|---|---|
| 70049 | Edgard, LA | Soft (44 PPM) |
| 70051 | Garyville, LA | Soft (44 PPM) |
| 70068 | La Place, LA | Soft (50 PPM) |
| 70076 | Mount Airy, LA | Soft (44 PPM) |
| 70084 | Reserve, LA | Soft (44 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.