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MCMINNVILLE WATER & LIGHT

PWS ID: OR4100497 · MCMINNVILLE, Oregon 97128

MCMINNVILLE WATER & LIGHT serves 34,515 people in MCMINNVILLE, Oregon using Surface Water water sources. It has 53 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: MCMINNVILLE WATER & LIGHT

MCMINNVILLE WATER & LIGHT is a local-owned community water system that delivers drinking water to 34,515 residents in MCMINNVILLE, Oregon (Yamhill County) through 12,038 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 53 total violations for this system , of which 0 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 51 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 7 violations (MR). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

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. MCMINNVILLE WATER & LIGHT's 53 violations sit below 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
34,515
Total Violations
53
Health-Based Violations
0
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
12,038
County
Yamhill
School/Daycare
No
MCL Violations
0
Monitoring Violations
51
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 7 2001
Surface Water Treatment Rule MR 3 2019
Methoxychlor MR 1 2002
Toxaphene MR 1 2002
Dalapon MR 1 2002
Diquat MR 1 2002
OXAMYL MR 1 2002
Simazine MR 1 2002
Dinoseb MR 1 2002
Carbofuran MR 1 2002
LASSO MR 1 2002
Heptachlor MR 1 2002
Heptachlor epoxide MR 1 2002
2,4-D MR 1 2002
2,4,5-TP MR 1 2002
Benzo(a)pyrene MR 1 2002
Pentachlorophenol MR 1 2002
Total Polychlorinated Biphenyls (PCB) MR 1 2002
1,2-DIBROMO-3-CHLOROPROPANE MR 1 2002
Selenium MR 1 1979
Arsenic MR 1 1979
Combined Radium (-226 and -228) MR 1 1976
Nitrate MR 1 1979
Barium MR 1 1979
Cadmium MR 1 1979
Gross Alpha, Excl. Radon and U MR 1 1976
Atrazine MR 1 2002
Glyphosate MR 1 2002
Di(2-ethylhexyl) adipate MR 1 2002
BHC-GAMMA MR 1 2002

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 60 samples detected PFAS.

Contaminant Date Result MRL Status
NFDHA 5/7/2025 <0.02 µg/L 0.02 µg/L Not Detected
ADONA 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 5/7/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 5/7/2025 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 5/7/2025 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 5/7/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 5/7/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 5/7/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFDoA 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 5/7/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFMBA 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 5/7/2025 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 5/7/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 5/7/2025 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 5/7/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBS 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 5/7/2025 <0.008 µg/L 0.008 µg/L Not Detected
PFHxS 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 5/7/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 5/7/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 5/7/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 5/7/2025 <0.003 µg/L 0.003 µg/L Not Detected
lithium 5/7/2025 <9 µg/L 9 µg/L Not Detected
NMeFOSAA 5/7/2025 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 2/5/2025 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 2/5/2025 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 2/5/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 2/5/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 2/5/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 2/5/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 2/5/2025 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 2/5/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFPeS 2/5/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 2/5/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 2/5/2025 <0.007 µg/L 0.007 µg/L Not Detected
NMeFOSAA 2/5/2025 <0.006 µg/L 0.006 µg/L Not Detected
6:2 FTS 2/5/2025 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 2/5/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 2/5/2025 <0.008 µg/L 0.008 µg/L Not Detected
PFBS 2/5/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 2/5/2025 <0.005 µg/L 0.005 µg/L Not Detected
lithium 2/5/2025 <9 µg/L 9 µg/L Not Detected
PFHpA 2/5/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 2/5/2025 <0.003 µg/L 0.003 µg/L Not Detected

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 MCMINNVILLE WATER & LIGHT.

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 OR4100497 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
2024 Revised Total Coliform Rule MON 1 SDWIS / OR4100497 / 8000
2019 Surface Water Treatment Rule MR 3 SDWIS / OR4100497 / 0200
2019 Interim Enhanced Surface Water Treatment Rule MR 1 SDWIS / OR4100497 / 0300
2002 Methoxychlor MR 1 SDWIS / OR4100497 / 2015
2002 Toxaphene MR 1 SDWIS / OR4100497 / 2020
2002 Dalapon MR 1 SDWIS / OR4100497 / 2031
2002 Diquat MR 1 SDWIS / OR4100497 / 2032
2002 OXAMYL MR 1 SDWIS / OR4100497 / 2036
2002 Simazine MR 1 SDWIS / OR4100497 / 2037
2002 Dinoseb MR 1 SDWIS / OR4100497 / 2041
2002 Carbofuran MR 1 SDWIS / OR4100497 / 2046
2002 LASSO MR 1 SDWIS / OR4100497 / 2051
2002 Heptachlor MR 1 SDWIS / OR4100497 / 2065
2002 Heptachlor epoxide MR 1 SDWIS / OR4100497 / 2067
2002 2,4-D MR 1 SDWIS / OR4100497 / 2105

How MCMINNVILLE WATER & LIGHT Compares

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

Metric MCMINNVILLE WATER & LIGHT Oregon avg Federal benchmark
Total violations 53 82.1 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 0 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 34,515 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 MCMINNVILLE WATER & LIGHT water safe to drink? ▼
MCMINNVILLE WATER & LIGHT (PWS ID: OR4100497) has 53 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 34,515 people using Surface Water sources.
How many people does MCMINNVILLE WATER & LIGHT serve? ▼
MCMINNVILLE WATER & LIGHT serves 34,515 people in MCMINNVILLE, Oregon. It is a Local-owned system using Surface Water water sources with 12,038 service connections.
What type of violations does MCMINNVILLE WATER & LIGHT have? ▼
MCMINNVILLE WATER & LIGHT has 53 total violations: 0 health-based violations (MCL exceedances or treatment failures), 51 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in MCMINNVILLE WATER & LIGHT water? ▼
No. MCMINNVILLE WATER & LIGHT was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does MCMINNVILLE WATER & LIGHT use? ▼
MCMINNVILLE WATER & LIGHT uses Surface Water 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.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

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

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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial