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Community Water System · PWS OR4100366

Harrisburg, City Of

Harrisburg, Oregon 97446 - drinking water served from groundwater sources to 3,684 people, tracked in EPA SDWIS and UCMR5.

3,684
People served
332
EPA violations
3
Health-based
No PFAS
UCMR5 result

The verdict

EPA records 332 drinking-water violations at Harrisburg, City Of, 1% of them health-based - above the Oregon per-system average.

332
Total EPA violations on record
1%
Health-based (MCL / treatment failure)
3,684
People served by this system
0
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Harrisburg, City Of

Harrisburg, City Of is a local-owned community water system that delivers drinking water to 3,684 residents in Harrisburg, Oregon (Linn County) through 1,244 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 332 total violations for this system , of which 3 (1%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 325 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 Coliform (TCR), recorded in 10 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%).

Harrisburg, City Of's 332 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
3,684
Total Violations
332
Health-Based Violations
3
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
1,244
County
Linn
School/Daycare
No
MCL Violations
2
Monitoring Violations
325
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 10 2008
1,2,4-Trichlorobenzene MR 10 2009
Xylenes, Total MR 10 2009
DICHLOROMETHANE MR 10 2009
o-Dichlorobenzene MR 10 2009
1,1-Dichloroethylene MR 10 2009
Trichloroethylene MR 10 2009
Benzene MR 10 2009
cis-1,2-Dichloroethylene MR 10 2009
trans-1,2-Dichloroethylene MR 10 2009
1,1,1-Trichloroethane MR 10 2009
Carbon tetrachloride MR 10 2009
1,1,2-Trichloroethane MR 10 2009
Tetrachloroethylene MR 10 2009
CHLOROBENZENE MR 10 2009
Toluene MR 10 2009
Ethylbenzene MR 10 2009
p-Dichlorobenzene MR 10 2009
Vinyl chloride MR 10 2009
1,2-Dichloropropane MR 10 2009
Styrene MR 10 2009
COLIPHAGE MR 10 2012
1,2-Dichloroethane MR 10 2009
Nitrate MR 3 2002
BHC-GAMMA MR 3 2009
Methoxychlor MR 3 2009
Toxaphene MR 3 2009
Dalapon MR 3 2009
Simazine MR 3 2009
Di(2-ethylhexyl) phthalate MR 3 2009

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 58 samples detected PFAS.

Contaminant Date Result MRL Status
NFDHA 3/20/2023 <20.00 ppt 20.00 ppt Not Detected
HFPO-DA 3/20/2023 <5.00 ppt 5.00 ppt Not Detected
PFBA 3/20/2023 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 3/20/2023 <5.00 ppt 5.00 ppt Not Detected
4:2 FTS 3/20/2023 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 3/20/2023 <5.00 ppt 5.00 ppt Not Detected
PFMPA 3/20/2023 <4.00 ppt 4.00 ppt Not Detected
PFPeA 3/20/2023 <3.00 ppt 3.00 ppt Not Detected
PFEESA 3/20/2023 <3.00 ppt 3.00 ppt Not Detected
PFPeS 3/20/2023 <4.00 ppt 4.00 ppt Not Detected
PFHpS 3/20/2023 <3.00 ppt 3.00 ppt Not Detected
PFDoA 3/20/2023 <3.00 ppt 3.00 ppt Not Detected
PFBS 3/20/2023 <3.00 ppt 3.00 ppt Not Detected
ADONA 3/20/2023 <3.00 ppt 3.00 ppt Not Detected
PFMBA 3/20/2023 <3.00 ppt 3.00 ppt Not Detected
PFTA 3/20/2023 <8.00 ppt 8.00 ppt Not Detected
PFUnA 3/20/2023 <2.00 ppt 2.00 ppt Not Detected
9Cl-PF3ONS 3/20/2023 <2.00 ppt 2.00 ppt Not Detected
PFTrDA 3/20/2023 <7.00 ppt 7.00 ppt Not Detected
NEtFOSAA 3/20/2023 <5.00 ppt 5.00 ppt Not Detected
NMeFOSAA 3/20/2023 <6.00 ppt 6.00 ppt Not Detected
PFHpA 3/20/2023 <3.00 ppt 3.00 ppt Not Detected
PFNA 3/20/2023 <4.00 ppt 4.00 ppt Not Detected
PFOS 3/20/2023 <4.00 ppt 4.00 ppt Not Detected
PFOA 3/20/2023 <4.00 ppt 4.00 ppt Not Detected
PFDA 3/20/2023 <3.00 ppt 3.00 ppt Not Detected
PFHxS 3/20/2023 <3.00 ppt 3.00 ppt Not Detected
11Cl-PF3OUdS 3/20/2023 <5.00 ppt 5.00 ppt Not Detected
PFHxA 3/20/2023 <3.00 ppt 3.00 ppt Not Detected
PFBA 10/4/2023 <5.00 ppt 5.00 ppt Not Detected
PFDoA 10/4/2023 <3.00 ppt 3.00 ppt Not Detected
PFDA 10/4/2023 <3.00 ppt 3.00 ppt Not Detected
PFOA 10/4/2023 <4.00 ppt 4.00 ppt Not Detected
PFOS 10/4/2023 <4.00 ppt 4.00 ppt Not Detected
PFNA 10/4/2023 <4.00 ppt 4.00 ppt Not Detected
PFHxS 10/4/2023 <3.00 ppt 3.00 ppt Not Detected
NEtFOSAA 10/4/2023 <5.00 ppt 5.00 ppt Not Detected
PFBS 10/4/2023 <3.00 ppt 3.00 ppt Not Detected
NMeFOSAA 10/4/2023 <6.00 ppt 6.00 ppt Not Detected
PFHxA 10/4/2023 <3.00 ppt 3.00 ppt Not Detected
PFMPA 10/4/2023 <4.00 ppt 4.00 ppt Not Detected
PFTrDA 10/4/2023 <7.00 ppt 7.00 ppt Not Detected
PFHpA 10/4/2023 <3.00 ppt 3.00 ppt Not Detected
PFUnA 10/4/2023 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 10/4/2023 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 10/4/2023 <2.00 ppt 2.00 ppt Not Detected
ADONA 10/4/2023 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 10/4/2023 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 10/4/2023 <5.00 ppt 5.00 ppt Not Detected
8:2 FTS 10/4/2023 <5.00 ppt 5.00 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 Harrisburg, 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 OR4100366 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 Lead and Copper Rule MR 3 SDWIS / OR4100366 / 5000
2023 Consumer Confidence Rule Other 1 SDWIS / OR4100366 / 7000
2022 Lead and Copper Rule TT 1 SDWIS / OR4100366 / 5000
2012 COLIPHAGE MR 10 SDWIS / OR4100366 / 3028
2009 1,2,4-Trichlorobenzene MR 10 SDWIS / OR4100366 / 2378
2009 Xylenes, Total MR 10 SDWIS / OR4100366 / 2955
2009 DICHLOROMETHANE MR 10 SDWIS / OR4100366 / 2964
2009 o-Dichlorobenzene MR 10 SDWIS / OR4100366 / 2968
2009 1,1-Dichloroethylene MR 10 SDWIS / OR4100366 / 2977
2009 Trichloroethylene MR 10 SDWIS / OR4100366 / 2984
2009 Benzene MR 10 SDWIS / OR4100366 / 2990
2009 cis-1,2-Dichloroethylene MR 10 SDWIS / OR4100366 / 2380
2009 trans-1,2-Dichloroethylene MR 10 SDWIS / OR4100366 / 2979
2009 1,1,1-Trichloroethane MR 10 SDWIS / OR4100366 / 2981
2009 Carbon tetrachloride MR 10 SDWIS / OR4100366 / 2982

How Harrisburg, City Of Compares

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

Metric Harrisburg, City Of Oregon avg Federal benchmark
Total violations 332 82.1 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 3 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 3,684 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 Harrisburg, City Of water safe to drink? ▼
Harrisburg, City Of (PWS ID: OR4100366) has 332 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 3,684 people using Groundwater sources.
How many people does Harrisburg, City Of serve? ▼
Harrisburg, City Of serves 3,684 people in Harrisburg, Oregon. It is a Local-owned system using Groundwater water sources with 1,244 service connections.
What type of violations does Harrisburg, City Of have? ▼
Harrisburg, City Of has 332 total violations: 3 health-based violations (MCL exceedances or treatment failures), 325 monitoring/reporting violations, and 1 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Harrisburg, City Of water? ▼
No. Harrisburg, City Of was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does Harrisburg, City Of use? ▼
Harrisburg, 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.

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

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.