June 14, 2026
Junction City, CA Water Quality Report 2026
Water Utility: Lewiston Community Services District
Population Served: 677 residents
Data Sources: EPA SDWIS + EPA UCMR5
Report Year: 2026
Junction City, California drinking water is supplied by Lewiston Community Services District. All US public water systems must test drinking water and report results to the EPA under the Safe Drinking Water Act. This report summarizes health-based violations and PFAS detections recorded in federal databases to help you make informed decisions about home water filtration.
EPA Health-Based Violation History
The following contaminants exceeded EPA maximum contaminant levels (MCLs) at this utility since 2010:
| Contaminant | Violation Years | Filter Solution |
|---|---|---|
| Arsenic | 2010-2015 | Under Sink Filters |
| Interim Enhanced Surface Water Treatment Rule | 2024 | Water Filters |
| Surface Water Treatment Rule | 2011 | Water Filters |
Source: EPA Safe Drinking Water Information System (SDWIS), updated quarterly. Health-based violations only.
Should You Filter Your Junction City Water?
Even utilities with no EPA violations may have contaminants present below legal limits but above health guidelines. The EPA sets maximum contaminant levels based on what is feasible and affordable to treat at scale -- not necessarily what carries zero health risk. Many independent health organizations recommend filtration for households with children, pregnant women, or immunocompromised individuals regardless of utility compliance status.
Protect Your Junction City Home Water
PureWaterGuys.com carries filtration systems certified to reduce arsenic and other heavy metals. We ship to all California addresses with free expert guidance on the right system.
Shop Under-Sink Water Filters →Take the Water QuizFrequently Asked Questions
Is Junction City tap water safe to drink?
Lewiston Community Services District is required to meet EPA federal drinking water standards. However, meeting legal standards is not the same as being contaminant-free. Trace levels of disinfection byproducts, PFAS compounds, and other regulated contaminants are common in US municipal water systems.
Does Junction City water have PFAS?
PFAS monitoring data for this utility may not yet be published in EPA databases. We recommend a reverse osmosis system for maximum protection regardless of local results.
What water filter works best for Junction City?
A whole-house carbon block filter removes chlorine, chloramines, and many VOCs. For PFAS, arsenic, and nitrates, a reverse osmosis under-sink system provides the highest reduction rates. Take our free 2-minute quiz to find the right system for your home and budget.
Data sourced from EPA SDWIS and UCMR5 federal databases. PureWaterGuys.com is not affiliated with any municipal water utility. Contact your utility's annual Consumer Confidence Report (CCR) for complete local data.