USFS TRILLIUM LAKE CG
Oregon — Transient Non-Community — PWSID: OR4192639
System Information
| PWSID | OR4192639 |
| System Name | USFS TRILLIUM LAKE CG |
| System Type | Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Federal |
| EPA Region | 10 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Mar 10, 1980 |
| Last Reported | Dec 23, 2025 |
Location & Contact
| State | Oregon |
| City | SANDY |
| ZIP Code | 97055 |
| Address | 16400 CHAMPION WAY |
| Organization | USFS TRILLIUM LAKE CG |
| Phone | 971-284-3751 |
Population & Service
| Population Served | 500 |
| Service Connections | 1 |
Drinking Water Violations (16)
This water system has 16 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 1, 2024 | Sep 30, 2024 | COLIPHAGE | MR | No | Yes | — | — | — | Resolved | Sep 30, 2024 | Ground Water Rule |
| Aug 1, 2024 | Aug 31, 2024 | COLIPHAGE | MR | No | Yes | — | — | — | Resolved | Aug 31, 2024 | Ground Water Rule |
| Jul 1, 2024 | Jul 31, 2024 | COLIPHAGE | MR | No | Yes | — | — | — | Resolved | Jul 31, 2024 | Ground Water Rule |
| Jun 1, 2024 | Jun 30, 2024 | Revised Total Coliform Rule | MON | No | Yes | — | — | — | Resolved | Jun 30, 2024 | Revised Total Coliform Rule |
| Jan 1, 2024 | Dec 31, 2024 | COLIPHAGE | MR | No | Yes | — | — | — | Resolved | Dec 31, 2024 | Ground Water Rule |
| Jan 1, 2021 | Dec 31, 2021 | COLIPHAGE | MR | No | Yes | — | — | — | Resolved | Dec 31, 2021 | Ground Water Rule |
| Jan 1, 2019 | Dec 31, 2019 | COLIPHAGE | MR | No | Yes | — | — | — | Resolved | Dec 31, 2019 | Ground Water Rule |
| Jan 1, 2017 | Dec 31, 2017 | COLIPHAGE | MR | No | Yes | — | — | — | Resolved | Dec 31, 2017 | Ground Water Rule |
| Jan 1, 2016 | Dec 31, 2016 | COLIPHAGE | MR | No | Yes | — | — | — | Resolved | Dec 31, 2016 | Ground Water Rule |
| Jan 1, 2014 | Dec 31, 2014 | COLIPHAGE | MR | No | Yes | — | — | — | Resolved | Dec 31, 2014 | Ground Water Rule |
| Jan 1, 2012 | Dec 31, 2012 | COLIPHAGE | MR | No | Yes | — | — | — | Resolved | Dec 31, 2012 | Ground Water Rule |
| Jan 1, 2012 | Dec 31, 2012 | COLIPHAGE | MR | No | Yes | — | — | — | Resolved | Dec 31, 2012 | Ground Water Rule |
| Jan 1, 2000 | Dec 31, 2000 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2000 | Nitrate Rule |
| Apr 1, 1997 | Jun 30, 1997 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 1997 | Total Coliform Rule |
| Jan 1, 1997 | Dec 31, 1997 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1997 | Nitrate Rule |
| Jan 1, 1996 | Dec 31, 1996 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1996 | Nitrate Rule |
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.