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MARION CO PUBLIC WORKS

PWS ID: OR4194399 · SALEM, Oregon 97305

MARION CO PUBLIC WORKS serves 200 people in SALEM, Oregon using Groundwater water sources. It has 156 recorded EPA violations, including 7 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: MARION CO PUBLIC WORKS

MARION CO PUBLIC WORKS is a local-owned non-transient non-community water system that delivers drinking water to 200 residents in SALEM, Oregon (Marion County) through 6 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 156 total violations for this system , of which 7 (4%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 145 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 18 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. MARION CO PUBLIC WORKS's 156 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
200
Total Violations
156
Health-Based Violations
7
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Local
Connections
6
County
Marion
School/Daycare
No
MCL Violations
7
Monitoring Violations
145
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 18 2004
Coliform (TCR) MCL 7 1999
Nitrate MR 4 2001
Carbon tetrachloride MR 2 2002
DICHLOROMETHANE MR 2 2002
o-Dichlorobenzene MR 2 2002
p-Dichlorobenzene MR 2 2002
Tetrachloroethylene MR 2 2002
Toluene MR 2 2002
Xylenes, Total MR 2 2002
Vinyl chloride MR 2 2002
Di(2-ethylhexyl) adipate MR 2 2002
LASSO MR 2 2002
Atrazine MR 2 2002
Carbofuran MR 2 2002
Chlordane MR 2 2002
Dalapon MR 2 2002
1,2-DIBROMO-3-CHLOROPROPANE MR 2 2002
Dinoseb MR 2 2002
Endothall MR 2 2002
Endrin MR 2 2002
Glyphosate MR 2 2002
Heptachlor epoxide MR 2 2002
HEXACHLOROBENZENE MR 2 2002
Hexachlorocyclopentadiene MR 2 2002
Pentachlorophenol MR 2 2002
Di(2-ethylhexyl) phthalate MR 2 2002
Picloram MR 2 2002
Simazine MR 2 2002
Toxaphene MR 2 2002

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 MARION CO PUBLIC WORKS.

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 OR4194399 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 Revised Total Coliform Rule MON 1 SDWIS / OR4194399 / 8000
2016 E. COLI MR 2 SDWIS / OR4194399 / 3014
2005 Lead and Copper Rule MR 1 SDWIS / OR4194399 / 5000
2004 Coliform (TCR) MR 18 SDWIS / OR4194399 / 3100
2002 Carbon tetrachloride MR 2 SDWIS / OR4194399 / 2982
2002 DICHLOROMETHANE MR 2 SDWIS / OR4194399 / 2964
2002 o-Dichlorobenzene MR 2 SDWIS / OR4194399 / 2968
2002 p-Dichlorobenzene MR 2 SDWIS / OR4194399 / 2969
2002 Tetrachloroethylene MR 2 SDWIS / OR4194399 / 2987
2002 Toluene MR 2 SDWIS / OR4194399 / 2991
2002 Xylenes, Total MR 2 SDWIS / OR4194399 / 2955
2002 Vinyl chloride MR 2 SDWIS / OR4194399 / 2976
2002 Di(2-ethylhexyl) adipate MR 2 SDWIS / OR4194399 / 2035
2002 LASSO MR 2 SDWIS / OR4194399 / 2051
2002 Atrazine MR 2 SDWIS / OR4194399 / 2050

How MARION CO PUBLIC WORKS Compares

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

Metric MARION CO PUBLIC WORKS Oregon avg Federal benchmark
Total violations 156 82.1 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 7 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 200 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 MARION CO PUBLIC WORKS water safe to drink? ▼
MARION CO PUBLIC WORKS (PWS ID: OR4194399) has 156 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 200 people using Groundwater sources.
How many people does MARION CO PUBLIC WORKS serve? ▼
MARION CO PUBLIC WORKS serves 200 people in SALEM, Oregon. It is a Local-owned system using Groundwater water sources with 6 service connections.
What type of violations does MARION CO PUBLIC WORKS have? ▼
MARION CO PUBLIC WORKS has 156 total violations: 7 health-based violations (MCL exceedances or treatment failures), 145 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in MARION CO PUBLIC WORKS water? ▼
No PFAS testing data is available for MARION CO PUBLIC WORKS under the EPA's UCMR5 monitoring program.
What water source does MARION CO PUBLIC WORKS use? ▼
MARION CO PUBLIC WORKS uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
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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