PlainWater
States → Oregon

TRI-CITY JW&SA

PWS ID: OR4100549 · MYRTLE CREEK, Oregon 97457

TRI-CITY JW&SA serves 3,500 people in MYRTLE CREEK, Oregon using Surface Water water sources. It has 151 recorded EPA violations, including 94 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: TRI-CITY JW&SA

TRI-CITY JW&SA is a local-owned community water system that delivers drinking water to 3,500 residents in MYRTLE CREEK, Oregon (Douglas County) through 1,602 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 151 total violations for this system , of which 94 (62%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 51 monitoring and reporting violations are on file. The most recent violation on record dates to 2020.

The most frequently cited contaminant at this system is Surface Water Treatment Rule, recorded in 94 violations (TT, health-based). 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. TRI-CITY JW&SA's 151 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
3,500
Total Violations
151
Health-Based Violations
94
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
1,602
County
Douglas
School/Daycare
No
MCL Violations
0
Monitoring Violations
51
Treatment Tech Violations
94

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Surface Water Treatment Rule TT 94 2001
Antimony, Total MR 4 1999
Beryllium, Total MR 4 1999
CYANIDE MR 4 1999
Nickel MR 4 1999
Thallium, Total MR 4 1999
Coliform (TCR) MR 3 1999
Nitrate MR 2 2000
1,2,4-Trichlorobenzene MR 1 2008
cis-1,2-Dichloroethylene MR 1 2008
DICHLOROMETHANE MR 1 2008
o-Dichlorobenzene MR 1 2008
p-Dichlorobenzene MR 1 2008
trans-1,2-Dichloroethylene MR 1 2008
1,2-Dichloroethane MR 1 2008
Carbon tetrachloride MR 1 2008
1,2-Dichloropropane MR 1 2008
Tetrachloroethylene MR 1 2008
CHLOROBENZENE MR 1 2008
Benzene MR 1 2008
Ethylbenzene MR 1 2008
Arsenic MR 1 2008
Revised Total Coliform Rule MON 1 2020
Gross Alpha, Excl. Radon and U MR 1 1976
Combined Radium (-226 and -228) MR 1 1976
Styrene MR 1 2008
Vinyl chloride MR 1 2008
1,1,1-Trichloroethane MR 1 2008
Xylenes, Total MR 1 2008
1,1-Dichloroethylene MR 1 2008

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
PFTA 7/17/2023 <0.008 µg/L 0.008 µg/L Not Detected
NEtFOSAA 7/17/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 7/17/2023 <0.007 µg/L 0.007 µg/L Not Detected
NMeFOSAA 7/17/2023 <0.006 µg/L 0.006 µg/L Not Detected
lithium 7/17/2023 <9 µg/L 9 µg/L Not Detected
PFBA 5/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 5/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 5/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 5/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFPeA 5/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 5/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 5/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 5/6/2024 <0.02 µg/L 0.02 µg/L Not Detected
PFHpS 5/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 5/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 5/6/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 5/6/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpA 5/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 5/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFHxS 5/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 5/6/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 5/6/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 5/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 5/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 5/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 5/6/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 5/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 5/6/2024 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 5/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 5/6/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFMPA 4/10/2023 <0.004 µg/L 0.004 µg/L Not Detected
8:2 FTS 4/10/2023 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 4/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 4/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 4/10/2023 <0.005 µg/L 0.005 µg/L Not Detected
HFPO-DA 4/10/2023 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 4/10/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFMBA 4/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 4/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 4/10/2023 <0.004 µg/L 0.004 µg/L Not Detected
11Cl-PF3OUdS 4/10/2023 <0.005 µg/L 0.005 µg/L Not Detected
PFHpS 4/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFTA 4/10/2023 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 4/10/2023 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 4/10/2023 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 4/10/2023 <0.006 µg/L 0.006 µg/L Not Detected
NFDHA 4/10/2023 <0.02 µg/L 0.02 µg/L Not Detected
PFBS 4/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 4/10/2023 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 4/10/2023 <0.003 µg/L 0.003 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 TRI-CITY JW&SA.

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 OR4100549 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
2020 Revised Total Coliform Rule MON 1 SDWIS / OR4100549 / 8000
2019 Bromate MR 1 SDWIS / OR4100549 / 1011
2008 1,2,4-Trichlorobenzene MR 1 SDWIS / OR4100549 / 2378
2008 cis-1,2-Dichloroethylene MR 1 SDWIS / OR4100549 / 2380
2008 DICHLOROMETHANE MR 1 SDWIS / OR4100549 / 2964
2008 o-Dichlorobenzene MR 1 SDWIS / OR4100549 / 2968
2008 p-Dichlorobenzene MR 1 SDWIS / OR4100549 / 2969
2008 trans-1,2-Dichloroethylene MR 1 SDWIS / OR4100549 / 2979
2008 1,2-Dichloroethane MR 1 SDWIS / OR4100549 / 2980
2008 Carbon tetrachloride MR 1 SDWIS / OR4100549 / 2982
2008 1,2-Dichloropropane MR 1 SDWIS / OR4100549 / 2983
2008 Tetrachloroethylene MR 1 SDWIS / OR4100549 / 2987
2008 CHLOROBENZENE MR 1 SDWIS / OR4100549 / 2989
2008 Benzene MR 1 SDWIS / OR4100549 / 2990
2008 Ethylbenzene MR 1 SDWIS / OR4100549 / 2992

How TRI-CITY JW&SA Compares

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

Metric TRI-CITY JW&SA Oregon avg Federal benchmark
Total violations 151 82.1 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 94 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 3,500 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 TRI-CITY JW&SA water safe to drink? ▼
TRI-CITY JW&SA (PWS ID: OR4100549) has 151 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 3,500 people using Surface Water sources.
How many people does TRI-CITY JW&SA serve? ▼
TRI-CITY JW&SA serves 3,500 people in MYRTLE CREEK, Oregon. It is a Local-owned system using Surface Water water sources with 1,602 service connections.
What type of violations does TRI-CITY JW&SA have? ▼
TRI-CITY JW&SA has 151 total violations: 94 health-based violations (MCL exceedances or treatment failures), 51 monitoring/reporting violations, and 94 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in TRI-CITY JW&SA water? ▼
No. TRI-CITY JW&SA was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does TRI-CITY JW&SA use? ▼
TRI-CITY JW&SA 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.

Explore PlainWater

Water in Oregon

All systems in state
All States

Water quality by state
Contaminants

PFAS & other pollutants
Guides

Understanding water quality

Related Data for Oregon

Environmental Data → Natural Hazards → Air Quality → Healthcare Access → Climate Data →
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.

Related

Browse all → | Rankings →
Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial