WEST HILLS WATER COMPANY
Oregon — Community Water System — PWSID: OR4100895
System Information
| PWSID | OR4100895 |
| System Name | WEST HILLS WATER COMPANY |
| System Type | Community Water System |
| Water Source | Surface Water Purchased |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 10 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 12, 1979 |
| Last Reported | Dec 23, 2025 |
Location & Contact
| State | Oregon |
| City | TILLAMOOK |
| ZIP Code | 97141 |
| Address | 7155 VAUGHN RD |
| Organization | WEST HILLS WATER COMPANY |
| Phone | 503-812-9751 |
Population & Service
| Population Served | 299 |
| Service Connections | 105 |
Drinking Water Violations (22)
This water system has 22 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jul 1, 2023 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Jul 20, 2023 | Consumer Confidence Rule |
| Oct 1, 2016 | Sep 30, 2017 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Sep 30, 2017 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Oct 1, 2016 | Sep 30, 2017 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Sep 30, 2017 | Stage 2 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2012 | Dec 31, 2012 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2012 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2012 | Dec 31, 2012 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2012 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2012 | Dec 31, 2012 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2012 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2012 | Dec 31, 2012 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2012 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Aug 1, 2010 | Aug 31, 2010 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2010 | Total Coliform Rule |
| Aug 1, 2010 | Aug 31, 2010 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Aug 31, 2010 | Total Coliform Rule |
| Nov 1, 2008 | Nov 30, 2008 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2008 | Total Coliform Rule |
| Jan 1, 2006 | Dec 31, 2006 | Total Haloacetic Acids (HAA5) | MR | No | Yes | — | 0.060 mg/L | — | Resolved | Dec 31, 2006 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2006 | Dec 31, 2006 | TTHM | MR | No | Yes | — | 0.080 mg/L | — | Resolved | Dec 31, 2006 | Stage 1 Disinfectants and Disinfection Byproducts Rule |
| Jan 1, 2003 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Oct 15, 2007 | Lead and Copper Rule |
| Oct 19, 2002 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Mar 11, 2003 | Consumer Confidence Rule |
| Jul 1, 2002 | — | Consumer Confidence Rule | Other | No | No | — | — | — | Resolved | Mar 11, 2003 | Consumer Confidence Rule |
| May 1, 2001 | May 31, 2001 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | May 31, 2001 | Total Coliform Rule |
| Jul 1, 1994 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Oct 15, 2007 | Lead and Copper Rule |
| Jul 1, 1994 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Oct 15, 2007 | Lead and Copper Rule |
| Jan 1, 1994 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Oct 15, 2007 | Lead and Copper Rule |
| Jan 1, 1994 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Oct 15, 2007 | Lead and Copper Rule |
| — | — | — | No | No | — | — | — | — | — | — | |
| — | — | — | No | No | — | — | — | — | — | — |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.