Public water system
Ventura Wwd No. 8 - Simi Valley
PWSID CA5610023 - Ventura County, California
193 PPM
11.3 GPG
Hard0Soft60120180300+
Hard (193 PPM)Verified - State Lab Tested
System Details
- Water source
- surface water
- Population served
- 94,738
- Service connections
- 25,902
- Status
- Active
Hardness Evidence
- Reported hardness
- 193 PPM
- Grains per gallon
- 11.3 GPG
- Data source
- California treated-water report
- Source year
- 2024
- Raw/source estimate
- 790 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.