Public water system
Harlingen Water Works System
PWSID TX0310002 - Cameron County, Texas
57 PPM
3.3 GPG
Soft0Soft60120180300+
Soft (57 PPM)Verified - Annual Water Quality Report
System Details
- Water source
- surface water
- Population served
- 85,900
- Service connections
- 37,154
- Status
- Active
Hardness Evidence
- Reported hardness
- 57 PPM
- Grains per gallon
- 3.3 GPG
- Data source
- Annual Water Quality Report
- Source year
- N/A
- Raw/source estimate
- 826 PPM
Linked City Reports
Served ZIP Codes
| ZIP | Location | ZIP average |
|---|---|---|
| 78520 | Brownsville, TX | Soft (57 PPM) |
| 78521 | Brownsville, TX | Soft (57 PPM) |
| 78526 | Brownsville, TX | Soft (57 PPM) |
| 78550 | Harlingen, TX | Soft (57 PPM) |
| 78552 | Harlingen, TX | Slightly Hard (72 PPM) |
| 78559 | La Feria, TX | Slightly Hard (71 PPM) |
| 78566 | Bayview, TX | Slightly Hard (62 PPM) |
| 78575 | Olmito, TX | Slightly Hard (66 PPM) |
| 78578 | Port Isabel, TX | Soft (57 PPM) |
| 78583 | Rio Hondo, TX | Slightly Hard (66 PPM) |
| 78586 | San Benito, TX | Soft (57 PPM) |
| 78592 | Santa Maria, TX | Soft (57 PPM) |
| 78593 | Santa Rosa, TX | Slightly Hard (63 PPM) |
| 78597 | South Padre Isla, TX | Soft (57 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.