Adams, OR
Contamination score
Higher = more contaminated vs. other cities.
Adams' public water utility was reported in compliance with federal health-based standards as of the most recent EPA-assessed quarter. However, Adams sits within the Lower Umatilla Basin Groundwater Management Area, where decades of nitrate contamination from agriculture have worsened over the past decade according to a 2025 Oregon DEQ report, prompting resident lawsuits over unsafe private-well water. That documented regional groundwater crisis, even though the city system itself currently tests clean, raises the risk score above a typical small-town baseline.
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Reported illness & cancer claims
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Self-reported issues
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Pollution sources & reported claims near your water
Factories, greenhouses, and contaminated sites mapped around the water supply. Tap any circle for detail.
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Public water systems
ADAMS WATER DEPT, CITY OF
- PWSID:
- OR4100001
- Source:
- Ground water
- Serves:
- 400 people
Adams Water System
- PWSID:
- GEN-adams-oregon
EPA & DEP violations
ADAMS WATER DEPT, CITY OF
PWSID OR41000013 violationsMonitoring violation — ADAMS WATER DEPT, CITY OF
low severityOpenEPA SDWIS violation 903232313 (code 3A) at ADAMS WATER DEPT, CITY OF (PWSID OR4100001).
EPA SDWIS · Monitoring violation · Began Sep 1, 2024 · 1 year ago · Source ↗
Other violation — ADAMS WATER DEPT, CITY OF
low severityResolvedEPA SDWIS violation 903232312 (code 71) at ADAMS WATER DEPT, CITY OF (PWSID OR4100001).
EPA SDWIS · Other violation · Began Jul 1, 2023 · 3 years ago · Source ↗
Monitoring violation — ADAMS WATER DEPT, CITY OF
low severityResolvedEPA SDWIS violation 456994 (code 51) at ADAMS WATER DEPT, CITY OF (PWSID OR4100001).
EPA SDWIS · Monitoring violation · Began Jul 1, 1994 · 32 years ago · Source ↗
Water-related lawsuits
No lawsuits on record.
In the news & sources
No coverage linked yet.