Public water system
Ukiah, City Of
PWSID CA2310003 - Mendocino County, California
102 PPM
6 GPG
Slightly Hard0Soft60120180300+
Slightly Hard (102 PPM)Verified - State Lab Tested
System Details
- Water source
- surface water
- Population served
- 16,607
- Service connections
- 4,935
- Status
- Active
Hardness Evidence
- Reported hardness
- 102 PPM
- Grains per gallon
- 6 GPG
- Data source
- California treated-water report
- Source year
- 2024
- Raw/source estimate
- 91 PPM
Linked City Reports
Albion, CABoonville, CABranscomb, CACaspar, CAComptche, CACovelo, CADos Rios, CAElk, CAFort Bragg, CAGualala, CAHopland, CALaytonville, CALittleriver, CAManchester, CAMendocino, CANavarro, CAPhilo, CAPoint Arena, CAPotter Valley, CARedwood Valley, CAUkiah, CAWestport, CAWillits, CAYorkville, CALeggett, CAPiercy, CA
Served ZIP Codes
| ZIP | Location | ZIP average |
|---|---|---|
| 95410 | Albion, CA | Slightly Hard (101 PPM) |
| 95415 | Boonville, CA | Slightly Hard (101 PPM) |
| 95417 | Branscomb, CA | Slightly Hard (101 PPM) |
| 95420 | Caspar, CA | Slightly Hard (101 PPM) |
| 95427 | Comptche, CA | Slightly Hard (101 PPM) |
| 95428 | Covelo, CA | Slightly Hard (101 PPM) |
| 95429 | Dos Rios, CA | Slightly Hard (101 PPM) |
| 95432 | Elk, CA | Slightly Hard (100 PPM) |
| 95437 | Fort Bragg, CA | Slightly Hard (81 PPM) |
| 95445 | Gualala, CA | Slightly Hard (100 PPM) |
| 95449 | Hopland, CA | Slightly Hard (101 PPM) |
| 95454 | Laytonville, CA | Slightly Hard (105 PPM) |
| 95456 | Littleriver, CA | Slightly Hard (101 PPM) |
| 95459 | Manchester, CA | Slightly Hard (104 PPM) |
| 95460 | Mendocino, CA | Slightly Hard (101 PPM) |
| 95463 | Navarro, CA | Slightly Hard (101 PPM) |
| 95466 | Philo, CA | Slightly Hard (101 PPM) |
| 95468 | Point Arena, CA | Slightly Hard (100 PPM) |
| 95469 | Potter Valley, CA | Slightly Hard (101 PPM) |
| 95470 | Redwood Valley, CA | Slightly Hard (101 PPM) |
| 95482 | Ukiah, CA | Slightly Hard (94 PPM) |
| 95488 | Westport, CA | Slightly Hard (101 PPM) |
| 95490 | Willits, CA | Slightly Hard (108 PPM) |
| 95494 | Yorkville, CA | Slightly Hard (101 PPM) |
| 95585 | Leggett, CA | Slightly Hard (101 PPM) |
| 95587 | Piercy, CA | Slightly Hard (101 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.