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OAKLAND, CITY OF

PWS ID: OR4100581 · OAKLAND, Oregon 97462

OAKLAND, CITY OF serves 954 people in OAKLAND, Oregon using Surface Water water sources. It has 162 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: OAKLAND, CITY OF

OAKLAND, CITY OF is a local-owned community water system that delivers drinking water to 954 residents in OAKLAND, Oregon (Douglas County) through 480 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 162 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 147 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 Surface Water Treatment Rule, recorded in 28 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. OAKLAND, CITY OF's 162 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
954
Total Violations
162
Health-Based Violations
0
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
480
County
Douglas
School/Daycare
No
MCL Violations
0
Monitoring Violations
147
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Surface Water Treatment Rule MR 28 2025
Coliform (TCR) MR 16 2015
Interim Enhanced Surface Water Treatment Rule MR 11 2025
Nitrate MR 5 2007
Consumer Confidence Rule Other 5 2025
Lead and Copper Rule MR 4 2025
Arsenic MR 3 2007
1,2,4-Trichlorobenzene MR 2 2007
cis-1,2-Dichloroethylene MR 2 2007
DICHLOROMETHANE MR 2 2007
Vinyl chloride MR 2 2007
1,1-Dichloroethylene MR 2 2007
trans-1,2-Dichloroethylene MR 2 2007
1,2-Dichloroethane MR 2 2007
1,1,1-Trichloroethane MR 2 2007
Carbon tetrachloride MR 2 2007
Trichloroethylene MR 2 2007
1,1,2-Trichloroethane MR 2 2007
Tetrachloroethylene MR 2 2007
CHLOROBENZENE MR 2 2007
Benzene MR 2 2007
Toluene MR 2 2007
Xylenes, Total MR 2 2007
p-Dichlorobenzene MR 2 2007
Ethylbenzene MR 2 2007
Styrene MR 2 2007
1,2-Dichloropropane MR 2 2007
o-Dichlorobenzene MR 2 2007
BHC-GAMMA MR 1 2005
Methoxychlor MR 1 2005

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 OAKLAND, 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 OR4100581 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 Surface Water Treatment Rule MR 28 SDWIS / OR4100581 / 0200
2025 Interim Enhanced Surface Water Treatment Rule MR 11 SDWIS / OR4100581 / 0300
2025 Consumer Confidence Rule Other 5 SDWIS / OR4100581 / 7000
2025 Lead and Copper Rule MR 4 SDWIS / OR4100581 / 5000
2020 Revised Total Coliform Rule MON 1 SDWIS / OR4100581 / 8000
2015 Coliform (TCR) MR 16 SDWIS / OR4100581 / 3100
2007 Nitrate MR 5 SDWIS / OR4100581 / 1040
2007 Arsenic MR 3 SDWIS / OR4100581 / 1005
2007 1,2,4-Trichlorobenzene MR 2 SDWIS / OR4100581 / 2378
2007 cis-1,2-Dichloroethylene MR 2 SDWIS / OR4100581 / 2380
2007 DICHLOROMETHANE MR 2 SDWIS / OR4100581 / 2964
2007 Vinyl chloride MR 2 SDWIS / OR4100581 / 2976
2007 1,1-Dichloroethylene MR 2 SDWIS / OR4100581 / 2977
2007 trans-1,2-Dichloroethylene MR 2 SDWIS / OR4100581 / 2979
2007 1,2-Dichloroethane MR 2 SDWIS / OR4100581 / 2980

How OAKLAND, CITY OF Compares

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

Metric OAKLAND, CITY OF Oregon avg Federal benchmark
Total violations 162 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 954 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 OAKLAND, CITY OF water safe to drink? ▼
OAKLAND, CITY OF (PWS ID: OR4100581) has 162 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 954 people using Surface Water sources.
How many people does OAKLAND, CITY OF serve? ▼
OAKLAND, CITY OF serves 954 people in OAKLAND, Oregon. It is a Local-owned system using Surface Water water sources with 480 service connections.
What type of violations does OAKLAND, CITY OF have? ▼
OAKLAND, CITY OF has 162 total violations: 0 health-based violations (MCL exceedances or treatment failures), 147 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in OAKLAND, CITY OF water? ▼
No PFAS testing data is available for OAKLAND, CITY OF under the EPA's UCMR5 monitoring program.
What water source does OAKLAND, CITY OF use? ▼
OAKLAND, CITY OF 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. This data is provided for informational purposes only.

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

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