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ESTACADA, CITY OF

PWS ID: OR4100279 · ESTACADA, Oregon 97023

ESTACADA, CITY OF serves 5,750 people in ESTACADA, Oregon using Surface Water water sources. It has 291 recorded EPA violations, including 174 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (1 compound found).

Water Quality Snapshot: ESTACADA, CITY OF

ESTACADA, CITY OF is a local-owned community water system that delivers drinking water to 5,750 residents in ESTACADA, Oregon (Clackamas County) through 2,060 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 291 total violations for this system , of which 174 (60%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 113 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 174 violations (TT, health-based). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 0.0074 ppt. PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

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. ESTACADA, CITY OF's 291 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.

PFAS Detected

1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
5,750
Total Violations
291
Health-Based Violations
174
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
2,060
County
Clackamas
School/Daycare
No
MCL Violations
0
Monitoring Violations
113
Treatment Tech Violations
174

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Surface Water Treatment Rule TT 174 2020
Coliform (TCR) MR 37 2015
Surface Water Treatment Rule MR 23 2018
Interim Enhanced Surface Water Treatment Rule MR 11 2018
Revised Total Coliform Rule MON 6 2019
Nitrate MR 4 2014
Asbestos MR 2 2002
Xylenes, Total MR 2 2014
Lead and Copper Rule MR 2 1994
DICHLOROMETHANE MR 1 2007
p-Dichlorobenzene MR 1 2007
Vinyl chloride MR 1 2007
1,1-Dichloroethylene MR 1 2007
Carbon tetrachloride MR 1 2007
Benzene MR 1 2007
Toluene MR 1 2007
Ethylbenzene MR 1 2007
TTHM MR 1 2016
Combined Radium (-226 and -228) MR 1 1976
1,2,4-Trichlorobenzene MR 1 2007
1,2-Dichloroethane MR 1 2007
o-Dichlorobenzene MR 1 2007
Mercury MR 1 1979
Consumer Confidence Rule Other 1 2025
Styrene MR 1 2007
Chromium MR 1 1979
Gross Alpha, Excl. Radon and U MR 1 1976
Trichloroethylene MR 1 2007
CHLOROBENZENE MR 1 2007
trans-1,2-Dichloroethylene MR 1 2007

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 1 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
PFHpS 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 9/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 9/17/2024 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 9/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 9/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFHpA 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 9/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 9/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
NFDHA 9/17/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFPeS 9/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 9/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFUnA 9/17/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFEESA 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 9/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 9/17/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFHxA 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 9/17/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFDA 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
NEtFOSAA 9/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
lithium 9/17/2024 <9 µg/L 9 µg/L Not Detected
PFBS 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 9/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 9/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFDoA 9/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 9/17/2024 <0.007 µg/L 0.007 µg/L Not Detected
HFPO-DA 6/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBS 6/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
lithium 6/17/2024 <9 µg/L 9 µg/L Not Detected
PFPeA 6/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 6/17/2024 <0.004 µg/L 0.004 µg/L Not Detected
4:2 FTS 6/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 6/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 6/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
8:2 FTS 6/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 6/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 6/17/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 6/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 6/17/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFHxA 6/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 6/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 6/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 6/17/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFHpS 6/17/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 6/17/2024 <0.008 µg/L 0.008 µg/L Not Detected
NEtFOSAA 6/17/2024 <0.005 µg/L 0.005 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 ESTACADA, 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 OR4100279 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 1 SDWIS / OR4100279 / 7000
2020 Surface Water Treatment Rule TT 174 SDWIS / OR4100279 / 0200
2019 Revised Total Coliform Rule MON 6 SDWIS / OR4100279 / 8000
2018 Surface Water Treatment Rule MR 23 SDWIS / OR4100279 / 0200
2018 Interim Enhanced Surface Water Treatment Rule MR 11 SDWIS / OR4100279 / 0300
2016 TTHM MR 1 SDWIS / OR4100279 / 2950
2016 Total Haloacetic Acids (HAA5) MR 1 SDWIS / OR4100279 / 2456
2015 Coliform (TCR) MR 37 SDWIS / OR4100279 / 3100
2014 Nitrate MR 4 SDWIS / OR4100279 / 1040
2014 Xylenes, Total MR 2 SDWIS / OR4100279 / 2955
2007 DICHLOROMETHANE MR 1 SDWIS / OR4100279 / 2964
2007 p-Dichlorobenzene MR 1 SDWIS / OR4100279 / 2969
2007 Vinyl chloride MR 1 SDWIS / OR4100279 / 2976
2007 1,1-Dichloroethylene MR 1 SDWIS / OR4100279 / 2977
2007 Carbon tetrachloride MR 1 SDWIS / OR4100279 / 2982

How ESTACADA, CITY OF Compares

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

Metric ESTACADA, CITY OF Oregon avg Federal benchmark
Total violations 291 82.1 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 174 8.1 Indicates a contaminant exceeded a federal MCL
PFAS detection 1 compound 24% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 5,750 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 ESTACADA, CITY OF water safe to drink? ▼
ESTACADA, CITY OF (PWS ID: OR4100279) has 291 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 5,750 people using Surface Water sources.
How many people does ESTACADA, CITY OF serve? ▼
ESTACADA, CITY OF serves 5,750 people in ESTACADA, Oregon. It is a Local-owned system using Surface Water water sources with 2,060 service connections.
What type of violations does ESTACADA, CITY OF have? ▼
ESTACADA, CITY OF has 291 total violations: 174 health-based violations (MCL exceedances or treatment failures), 113 monitoring/reporting violations, and 174 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in ESTACADA, CITY OF water? ▼
Yes. UCMR5 testing detected 1 PFAS compound in ESTACADA, CITY OF's water supply: PFBA. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does ESTACADA, CITY OF use? ▼
ESTACADA, 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. 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