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DUNN COURT DUPLEXES

PWS ID: OR4100962 · ALOHA, Oregon 97007

DUNN COURT DUPLEXES serves 88 people in ALOHA, Oregon using Groundwater water sources. It has 458 recorded EPA violations, including 83 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: DUNN COURT DUPLEXES

DUNN COURT DUPLEXES is a private-owned community water system that delivers drinking water to 88 residents in ALOHA, Oregon (Marion County) through 22 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 458 total violations for this system , of which 83 (18%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 336 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 Arsenic, recorded in 74 violations (MCL, health-based). 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. DUNN COURT DUPLEXES's 458 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
88
Total Violations
458
Health-Based Violations
83
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
22
County
Marion
School/Daycare
No
MCL Violations
81
Monitoring Violations
336
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Arsenic MCL 74 2019
Coliform (TCR) MR 63 2015
Public Notice Other 21 2018
Arsenic MR 20 2024
Lead and Copper Rule MR 13 2021
Consumer Confidence Rule Other 7 2024
Nitrate MR 7 2009
Coliform (TCR) MCL 7 2015
cis-1,2-Dichloroethylene MR 4 2011
Vinyl chloride MR 4 2011
trans-1,2-Dichloroethylene MR 4 2011
1,2-Dichloropropane MR 4 2011
CHLOROBENZENE MR 4 2011
Benzene MR 4 2011
Styrene MR 4 2011
BHC-GAMMA MR 4 2011
Toxaphene MR 4 2011
Dalapon MR 4 2011
Glyphosate MR 4 2011
Di(2-ethylhexyl) adipate MR 4 2011
OXAMYL MR 4 2011
Di(2-ethylhexyl) phthalate MR 4 2011
Dinoseb MR 4 2011
Carbofuran MR 4 2011
Atrazine MR 4 2011
LASSO MR 4 2011
Heptachlor epoxide MR 4 2011
2,4-D MR 4 2011
2,4,5-TP MR 4 2011
HEXACHLOROBENZENE MR 4 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 DUNN COURT DUPLEXES.

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 OR4100962 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 Arsenic MR 20 SDWIS / OR4100962 / 1005
2024 Consumer Confidence Rule Other 7 SDWIS / OR4100962 / 7000
2023 COLIPHAGE MR 1 SDWIS / OR4100962 / 3028
2021 Lead and Copper Rule MR 13 SDWIS / OR4100962 / 5000
2021 Revised Total Coliform Rule MON 3 SDWIS / OR4100962 / 8000
2021 TTHM MR 1 SDWIS / OR4100962 / 2950
2021 Total Haloacetic Acids (HAA5) MR 1 SDWIS / OR4100962 / 2456
2019 Arsenic MCL 74 SDWIS / OR4100962 / 1005
2018 Public Notice Other 21 SDWIS / OR4100962 / 7500
2015 Coliform (TCR) MR 63 SDWIS / OR4100962 / 3100
2015 Coliform (TCR) MCL 7 SDWIS / OR4100962 / 3100
2014 E. COLI MR 1 SDWIS / OR4100962 / 3014
2011 cis-1,2-Dichloroethylene MR 4 SDWIS / OR4100962 / 2380
2011 Vinyl chloride MR 4 SDWIS / OR4100962 / 2976
2011 trans-1,2-Dichloroethylene MR 4 SDWIS / OR4100962 / 2979

How DUNN COURT DUPLEXES Compares

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

Metric DUNN COURT DUPLEXES Oregon avg Federal benchmark
Total violations 458 82.1 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 83 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 88 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 DUNN COURT DUPLEXES water safe to drink? ▼
DUNN COURT DUPLEXES (PWS ID: OR4100962) has 458 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 88 people using Groundwater sources.
How many people does DUNN COURT DUPLEXES serve? ▼
DUNN COURT DUPLEXES serves 88 people in ALOHA, Oregon. It is a Private-owned system using Groundwater water sources with 22 service connections.
What type of violations does DUNN COURT DUPLEXES have? ▼
DUNN COURT DUPLEXES has 458 total violations: 83 health-based violations (MCL exceedances or treatment failures), 336 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in DUNN COURT DUPLEXES water? ▼
No PFAS testing data is available for DUNN COURT DUPLEXES under the EPA's UCMR5 monitoring program.
What water source does DUNN COURT DUPLEXES use? ▼
DUNN COURT DUPLEXES 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.

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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.

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