COUNTY WATER-SYSTEM LEDGER
Clackamas, Oregon
EPA’s September 2026 export lists 17 active community water systems serving Clackamas, Oregon, with 1 current-violation flags and 0 serious-violator flags among the covered systems.
Source: EPA SDWIS system-search export · Active community systems serving 2,500+ people · Snapshot 13 Sep 2026
01 / SYSTEMS
Water systems serving Clackamas, Oregon
EPA associates 17 covered systems with Clackamas, Oregon; their reported population-served values total 348,164 and may overlap.
Ordered by reported population served. Open any record for separate health, monitoring, notice, other, and serious-violator flags.
| Water system | Population served | Primary source | Current export status |
|---|---|---|---|
| Sunrise Water AuthorityOR4100635 | 50,003 | Surface water purchased | No current violation flagged |
| Lake Oswego Municipal WaterOR4100457 | 40,000 | Surface water purchased | No current violation flagged |
| Oregon CityOR4101511 | 33,940 | Surface water purchased | No current violation flagged |
| Oak Lodge Water ServicesOR4101512 | 30,000 | Surface water purchased | No current violation flagged |
| Clackamas River WaterOR4100187 | 29,918 | Surface water | No current violation flagged |
| West Linn, City OfOR4100944 | 28,000 | Surface water purchased | No current violation flagged |
| Wilsonville, City OfOR4100954 | 25,915 | Surface water | No current violation flagged |
| Milwaukie, City OfOR4100528 | 20,946 | Ground water | No current violation flagged |
| Clackamas River Water - ClairmontOR4100594 | 19,928 | Surface water purchased | No current violation flagged |
| Canby UtilityOR4100157 | 18,754 | Surface water | No current violation flagged |
| Sandy, City OfOR4100789 | 12,991 | Surface water | Current health-based flag |
| Gladstone, City OfOR4100321 | 12,121 | Surface water purchased | No current violation flagged |
| Molalla, City OfOR4100534 | 10,298 | Surface water | No current violation flagged |
| Estacada, City OfOR4100279 | 5,750 | Surface water | No current violation flagged |
| Rivergrove Water DistrictOR4100461 | 4,000 | Ground water | No current violation flagged |
| Lake Grove Water DistrictOR4100460 | 3,100 | Surface water purchased | No current violation flagged |
| Boring Water District No 24OR4100135 | 2,500 | Ground water | No current violation flagged |
02 / SOURCE MIX
Primary water sources for Clackamas, Oregon
EPA classifies 17 systems serving Clackamas, Oregon across 3 primary-source categories; Surface water purchased is the largest category with 8 systems.
It is the sum of each listed system's reported population served, not a census estimate. Service areas can overlap and some systems list multiple cities or counties.