Water Quality: Lake Oswego, CA
1 water system • 104 people served
Some ConcernsWater Quality Summary
Lake Oswego is served by 1 public water system with a combined service population of 104 people, and has 6 EPA Safe Drinking Water Act violations on record. Critically, 1 of those are health-based violation, meaning one or more contaminants were detected above EPA-established safe levels — a serious public health concern. Lake Oswego's violation count is 88% below the national average for California. Contaminants associated with violations include Total Haloacetic Acids (HAA5).
Contaminants Found
Haloacetic acids are associated with increased cancer risk and potential reproductive and developmental effects.
Common source: Reaction of chlorine disinfectants with organic matter in treated water
EPA limit: 0.060 mg/L (60 ppb)
Water Systems Serving Lake Oswego
| System Name | PWSID | Source | Population | Violations |
|---|---|---|---|---|
| WESTWIND MOBILE HOME PARK | CA1700584 | Surface Water | 104 | 6 |
Concerned About Your Water?
A home water filter can remove common contaminants. NSF-certified filters are tested against EPA standards.
Consider a reverse osmosis system for comprehensive filtration or a carbon filter for basic improvement.
Other Cities in California
Data Sources
Drinking water violation data from the EPA Safe Drinking Water Information System (SDWIS). Data includes all recorded violations for active community water systems.