Public water system
Oxnard Water Dept
PWSID CA5610007 - Ventura County, California
403 PPM
23.6 GPG
Very Hard0Soft60120180300+
Very Hard (403 PPM)Verified - State Lab Tested
System Details
- Water source
- surface water
- Population served
- 200,232
- Service connections
- 42,733
- Status
- Active
Hardness Evidence
- Reported hardness
- 403 PPM
- Grains per gallon
- 23.6 GPG
- Data source
- California treated-water report
- Source year
- 2024
- Raw/source estimate
- 601 PPM
Linked City Reports
Served ZIP Codes
| ZIP | Location | ZIP average |
|---|---|---|
| 91320 | Newbury Park, CA | Very Hard (417 PPM) |
| 91360 | Thousand Oaks, CA | Very Hard (417 PPM) |
| 91361 | Westlake Village, CA | Very Hard (417 PPM) |
| 91362 | Westlake Village, CA | Very Hard (417 PPM) |
| 91377 | Westlake Village, CA | Very Hard (417 PPM) |
| 93001 | San Buenaventura, CA | Very Hard (417 PPM) |
| 93003 | San Buenaventura, CA | Very Hard (417 PPM) |
| 93004 | San Buenaventura, CA | Very Hard (417 PPM) |
| 93010 | Camarillo, CA | Very Hard (417 PPM) |
| 93012 | Camarillo, CA | Very Hard (417 PPM) |
| 93015 | Bardsdale, CA | Very Hard (417 PPM) |
| 93021 | Moorpark, CA | Very Hard (417 PPM) |
| 93022 | Oak View, CA | Very Hard (417 PPM) |
| 93023 | Ojai, CA | Very Hard (417 PPM) |
| 93030 | Oxnard, CA | Very Hard (417 PPM) |
| 93033 | Oxnard, CA | Very Hard (418 PPM) |
| 93035 | Oxnard, CA | Very Hard (418 PPM) |
| 93040 | Piru, CA | Very Hard (417 PPM) |
| 93041 | Port Hueneme, CA | Very Hard (417 PPM) |
| 93060 | Santa Paula, CA | Very Hard (417 PPM) |
| 93063 | Santa Susana, CA | Very Hard (417 PPM) |
| 93065 | Simi Valley, CA | Very Hard (417 PPM) |
| 93066 | Somis, CA | Very Hard (417 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.