PlainWater
States → Oregon

STANFIELD, CITY OF

PWS ID: OR4100842 · STANFIELD, Oregon 97875

STANFIELD, CITY OF serves 2,115 people in STANFIELD, Oregon using Groundwater water sources. It has 250 recorded EPA violations, including 4 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: STANFIELD, CITY OF

STANFIELD, CITY OF is a local-owned community water system that delivers drinking water to 2,115 residents in STANFIELD, Oregon (Umatilla County) through 704 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 250 total violations for this system , of which 4 (2%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 238 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 46 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Oregon, EPA tracks 2,518 public water systems serving 4,005,242 people, with 206,659 cumulative violations and 20,339 health-based violations on record. About 99% of systems in the state carry at least one violation, and state-wide the average per system is 82.1 violations. STANFIELD, CITY OF's 250 violations sit above the Oregon average. Statewide, 30 of 125 UCMR5-tested systems have reported PFAS detections (24%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
2,115
Total Violations
250
Health-Based Violations
4
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
704
County
Umatilla
School/Daycare
No
MCL Violations
4
Monitoring Violations
238
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 46 2014
Nitrate MR 19 2008
Lead and Copper Rule MR 5 2003
Coliform (TCR) MCL 4 1999
1,2,4-Trichlorobenzene MR 3 2011
Xylenes, Total MR 3 2011
DICHLOROMETHANE MR 3 2011
1,2-Dichloroethane MR 3 2011
1,1,1-Trichloroethane MR 3 2011
Carbon tetrachloride MR 3 2011
1,2-Dichloropropane MR 3 2011
Tetrachloroethylene MR 3 2011
Ethylbenzene MR 3 2011
Endrin MR 3 2011
Methoxychlor MR 3 2011
Toxaphene MR 3 2011
Dalapon MR 3 2011
Glyphosate MR 3 2011
Simazine MR 3 2011
Di(2-ethylhexyl) phthalate MR 3 2011
Dinoseb MR 3 2011
LASSO MR 3 2011
Heptachlor MR 3 2011
2,4,5-TP MR 3 2011
Benzo(a)pyrene MR 3 2011
Pentachlorophenol MR 3 2011
1,2-DIBROMO-3-CHLOROPROPANE MR 3 2011
ETHYLENE DIBROMIDE MR 3 2011
Chlordane MR 3 2011
BHC-GAMMA MR 3 2011

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for STANFIELD, CITY OF.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID OR4100842 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Oregon Drinking Water Authority

Oregon's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find OR regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2025 Consumer Confidence Rule Other 2 SDWIS / OR4100842 / 7000
2014 Coliform (TCR) MR 46 SDWIS / OR4100842 / 3100
2013 COLIPHAGE MR 1 SDWIS / OR4100842 / 3028
2011 1,2,4-Trichlorobenzene MR 3 SDWIS / OR4100842 / 2378
2011 Xylenes, Total MR 3 SDWIS / OR4100842 / 2955
2011 DICHLOROMETHANE MR 3 SDWIS / OR4100842 / 2964
2011 1,2-Dichloroethane MR 3 SDWIS / OR4100842 / 2980
2011 1,1,1-Trichloroethane MR 3 SDWIS / OR4100842 / 2981
2011 Carbon tetrachloride MR 3 SDWIS / OR4100842 / 2982
2011 1,2-Dichloropropane MR 3 SDWIS / OR4100842 / 2983
2011 Tetrachloroethylene MR 3 SDWIS / OR4100842 / 2987
2011 Ethylbenzene MR 3 SDWIS / OR4100842 / 2992
2011 Endrin MR 3 SDWIS / OR4100842 / 2005
2011 Methoxychlor MR 3 SDWIS / OR4100842 / 2015
2011 Toxaphene MR 3 SDWIS / OR4100842 / 2020

How STANFIELD, CITY OF Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric STANFIELD, CITY OF Oregon avg Federal benchmark
Total violations 250 82.1 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 4 8.1 Indicates a contaminant exceeded a federal MCL
PFAS detection None 24% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 2,115 1,591 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 2,518 regulated public water systems in Oregon.

Federal MCL reference — Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is STANFIELD, CITY OF water safe to drink? ▼
STANFIELD, CITY OF (PWS ID: OR4100842) has 250 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 2,115 people using Groundwater sources.
How many people does STANFIELD, CITY OF serve? ▼
STANFIELD, CITY OF serves 2,115 people in STANFIELD, Oregon. It is a Local-owned system using Groundwater water sources with 704 service connections.
What type of violations does STANFIELD, CITY OF have? ▼
STANFIELD, CITY OF has 250 total violations: 4 health-based violations (MCL exceedances or treatment failures), 238 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in STANFIELD, CITY OF water? ▼
No PFAS testing data is available for STANFIELD, CITY OF under the EPA's UCMR5 monitoring program.
What water source does STANFIELD, CITY OF use? ▼
STANFIELD, CITY OF uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

Explore PlainWater

Water in Oregon

All systems in state
All States

Water quality by state
Contaminants

PFAS & other pollutants
Guides

Understanding water quality

Related Data for Oregon

Environmental Data → Natural Hazards → Air Quality → Healthcare Access → Climate Data →
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

Related

Browse all → | Rankings →
Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by Kiznis Studio Editorial