PlainWater

Community Water System · PWS OR4100500

Madras, City Of

Madras, Oregon 97741 - drinking water served from groundwater sources to 3,940 people, tracked in EPA SDWIS and UCMR5.

3,940
People served
123
EPA violations
12
Health-based
No PFAS
UCMR5 result

The verdict

EPA records 123 drinking-water violations at Madras, City Of, 10% of them health-based - above the Oregon per-system average.

123
Total EPA violations on record
10%
Health-based (MCL / treatment failure)
3,940
People served by this system
0
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Madras, City Of

Madras, City Of is a local-owned community water system that delivers drinking water to 3,940 residents in Madras, Oregon (Jefferson County) through 1,015 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 123 total violations for this system , of which 12 (10%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 103 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 16 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. Statewide, 30 of 125 UCMR5-tested systems have reported PFAS detections (24%).

Madras, City Of's 123 violations sit above the Oregon average.

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
3,940
Total Violations
123
Health-Based Violations
12
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
1,015
County
Jefferson
School/Daycare
No
MCL Violations
12
Monitoring Violations
103
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 16 2015
Coliform (TCR) MCL 12 1999
Consumer Confidence Rule Other 5 2023
Lead and Copper Rule MR 5 1994
Endrin MR 2 2011
BHC-GAMMA MR 2 2011
Toxaphene MR 2 2011
Diquat MR 2 2011
Endothall MR 2 2011
Di(2-ethylhexyl) adipate MR 2 2011
OXAMYL MR 2 2011
Picloram MR 2 2011
Dinoseb MR 2 2011
LASSO MR 2 2011
Heptachlor MR 2 2011
2,4-D MR 2 2011
HEXACHLOROBENZENE MR 2 2011
Total Polychlorinated Biphenyls (PCB) MR 2 2011
ETHYLENE DIBROMIDE MR 2 2011
Chlordane MR 2 2011
Dalapon MR 2 2011
Di(2-ethylhexyl) phthalate MR 2 2011
Atrazine MR 2 2011
Heptachlor epoxide MR 2 2011
2,4,5-TP MR 2 2011
Pentachlorophenol MR 2 2011
Methoxychlor MR 2 2011
Benzo(a)pyrene MR 2 2011
1,2-DIBROMO-3-CHLOROPROPANE MR 2 2011
Carbofuran MR 2 2011

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 116 samples detected PFAS.

Contaminant Date Result MRL Status
NFDHA 8/19/2024 <20.00 ppt 20.00 ppt Not Detected
PFMBA 8/19/2024 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 8/19/2024 <5.00 ppt 5.00 ppt Not Detected
PFMPA 8/19/2024 <4.00 ppt 4.00 ppt Not Detected
PFPeS 8/19/2024 <4.00 ppt 4.00 ppt Not Detected
PFHpS 8/19/2024 <3.00 ppt 3.00 ppt Not Detected
NMeFOSAA 8/19/2024 <6.00 ppt 6.00 ppt Not Detected
PFPeA 8/19/2024 <3.00 ppt 3.00 ppt Not Detected
PFTrDA 8/19/2024 <7.00 ppt 7.00 ppt Not Detected
NEtFOSAA 8/19/2024 <5.00 ppt 5.00 ppt Not Detected
PFTA 8/19/2024 <8.00 ppt 8.00 ppt Not Detected
PFHpA 8/19/2024 <3.00 ppt 3.00 ppt Not Detected
PFEESA 8/19/2024 <3.00 ppt 3.00 ppt Not Detected
4:2 FTS 8/19/2024 <3.00 ppt 3.00 ppt Not Detected
PFBS 8/19/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxS 8/19/2024 <3.00 ppt 3.00 ppt Not Detected
PFNA 8/19/2024 <4.00 ppt 4.00 ppt Not Detected
PFOS 8/19/2024 <4.00 ppt 4.00 ppt Not Detected
PFOA 8/19/2024 <4.00 ppt 4.00 ppt Not Detected
PFDA 8/19/2024 <3.00 ppt 3.00 ppt Not Detected
PFHxA 8/19/2024 <3.00 ppt 3.00 ppt Not Detected
PFUnA 8/19/2024 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 8/19/2024 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 8/19/2024 <2.00 ppt 2.00 ppt Not Detected
ADONA 8/19/2024 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 8/19/2024 <5.00 ppt 5.00 ppt Not Detected
PFBA 8/19/2024 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 8/19/2024 <5.00 ppt 5.00 ppt Not Detected
PFDoA 8/19/2024 <3.00 ppt 3.00 ppt Not Detected
PFOS 8/19/2024 <4.00 ppt 4.00 ppt Not Detected
9Cl-PF3ONS 8/19/2024 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 8/19/2024 <5.00 ppt 5.00 ppt Not Detected
PFUnA 8/19/2024 <2.00 ppt 2.00 ppt Not Detected
PFHxA 8/19/2024 <3.00 ppt 3.00 ppt Not Detected
PFDoA 8/19/2024 <3.00 ppt 3.00 ppt Not Detected
ADONA 8/19/2024 <3.00 ppt 3.00 ppt Not Detected
PFOA 8/19/2024 <4.00 ppt 4.00 ppt Not Detected
PFHxS 8/19/2024 <3.00 ppt 3.00 ppt Not Detected
PFNA 8/19/2024 <4.00 ppt 4.00 ppt Not Detected
PFHpA 8/19/2024 <3.00 ppt 3.00 ppt Not Detected
NEtFOSAA 8/19/2024 <5.00 ppt 5.00 ppt Not Detected
PFDA 8/19/2024 <3.00 ppt 3.00 ppt Not Detected
PFEESA 8/19/2024 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 8/19/2024 <5.00 ppt 5.00 ppt Not Detected
PFBS 8/19/2024 <3.00 ppt 3.00 ppt Not Detected
NMeFOSAA 8/19/2024 <6.00 ppt 6.00 ppt Not Detected
PFTrDA 8/19/2024 <7.00 ppt 7.00 ppt Not Detected
PFHpS 8/19/2024 <3.00 ppt 3.00 ppt Not Detected
NFDHA 8/19/2024 <20.00 ppt 20.00 ppt Not Detected
PFTA 8/19/2024 <8.00 ppt 8.00 ppt 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 Madras, 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 OR4100500 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
2023 Consumer Confidence Rule Other 5 SDWIS / OR4100500 / 7000
2015 Coliform (TCR) MR 16 SDWIS / OR4100500 / 3100
2011 Endrin MR 2 SDWIS / OR4100500 / 2005
2011 BHC-GAMMA MR 2 SDWIS / OR4100500 / 2010
2011 Toxaphene MR 2 SDWIS / OR4100500 / 2020
2011 Diquat MR 2 SDWIS / OR4100500 / 2032
2011 Endothall MR 2 SDWIS / OR4100500 / 2033
2011 Di(2-ethylhexyl) adipate MR 2 SDWIS / OR4100500 / 2035
2011 OXAMYL MR 2 SDWIS / OR4100500 / 2036
2011 Picloram MR 2 SDWIS / OR4100500 / 2040
2011 Dinoseb MR 2 SDWIS / OR4100500 / 2041
2011 LASSO MR 2 SDWIS / OR4100500 / 2051
2011 Heptachlor MR 2 SDWIS / OR4100500 / 2065
2011 2,4-D MR 2 SDWIS / OR4100500 / 2105
2011 HEXACHLOROBENZENE MR 2 SDWIS / OR4100500 / 2274

How Madras, City Of Compares

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

Metric Madras, City Of Oregon avg Federal benchmark
Total violations 123 82.1 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 12 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 3,940 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 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Madras, City Of water safe to drink?
Madras, City Of (PWS ID: OR4100500) has 123 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 3,940 people using Groundwater sources.
How many people does Madras, City Of serve?
Madras, City Of serves 3,940 people in Madras, Oregon. It is a Local-owned system using Groundwater water sources with 1,015 service connections.
What type of violations does Madras, City Of have?
Madras, City Of has 123 total violations: 12 health-based violations (MCL exceedances or treatment failures), 103 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Madras, City Of water?
No. Madras, City Of was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does Madras, City Of use?
Madras, 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.
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.
Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.