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CHEMICAL WASTE MGT OF NW INC

PWS ID: OR4194718 · ARLINGTON, Oregon 97812

CHEMICAL WASTE MGT OF NW INC serves 40 people in ARLINGTON, Oregon using Groundwater water sources. It has 26 recorded EPA violations, including 0 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (1 compound found).

Water Quality Snapshot: CHEMICAL WASTE MGT OF NW INC

CHEMICAL WASTE MGT OF NW INC is a private-owned non-transient non-community water system that delivers drinking water to 40 residents in ARLINGTON, Oregon (Gilliam County) through 6 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 26 total violations for this system , of which 0 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 26 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 18 violations (MR). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 14 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. CHEMICAL WASTE MGT OF NW INC's 26 violations sit below 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
40
Total Violations
26
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
6
County
Gilliam
School/Daycare
No
MCL Violations
0
Monitoring Violations
26
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 18 2015
E. COLI MR 4 2025
Revised Total Coliform Rule MON 3 2024
Nitrate MR 1 1999

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 2 of 60 samples detected PFAS.

Contaminant Date Result MRL Status
8:2 FTS 8/19/2025 <0.005 µg/L 0.005 µg/L Not Detected
NFDHA 8/19/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFPeA 8/19/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 8/19/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 8/19/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMPA 8/19/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFPeS 8/19/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 8/19/2025 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 8/19/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 8/19/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 8/19/2025 <0.003 µg/L 0.003 µg/L Not Detected
lithium 8/19/2025 13.0000 µg/L 9 µg/L Detected
PFBS 8/19/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 8/19/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 8/19/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 8/19/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 8/19/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFDoA 8/19/2025 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 8/19/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFUnA 8/19/2025 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 8/19/2025 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 8/19/2025 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 8/19/2025 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 8/19/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 8/19/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFDA 8/19/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 4/2/2025 <0.003 µg/L 0.003 µg/L Not Detected
NEtFOSAA 4/2/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFTA 4/2/2025 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 4/2/2025 <0.007 µg/L 0.007 µg/L Not Detected
PFHxS 4/2/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 4/2/2025 <0.004 µg/L 0.004 µg/L Not Detected
NMeFOSAA 4/2/2025 <0.006 µg/L 0.006 µg/L Not Detected
PFDoA 4/2/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDA 4/2/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFOA 4/2/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFNA 4/2/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFHpA 4/2/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpS 4/2/2025 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 4/2/2025 <0.02 µg/L 0.02 µg/L Not Detected
PFEESA 4/2/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 4/2/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 4/2/2025 <0.003 µg/L 0.003 µg/L Not Detected
ADONA 4/2/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 4/2/2025 <0.002 µg/L 0.002 µg/L Not Detected
PFOS 4/2/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFMPA 4/2/2025 <0.004 µg/L 0.004 µg/L Not Detected
9Cl-PF3ONS 4/2/2025 <0.002 µg/L 0.002 µg/L Not Detected
lithium 4/2/2025 14.0000 µg/L 9 µg/L Detected
11Cl-PF3OUdS 4/2/2025 <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 CHEMICAL WASTE MGT OF NW INC.

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 OR4194718 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 E. COLI MR 4 SDWIS / OR4194718 / 3014
2024 Revised Total Coliform Rule MON 3 SDWIS / OR4194718 / 8000
2015 Coliform (TCR) MR 18 SDWIS / OR4194718 / 3100
1999 Nitrate MR 1 SDWIS / OR4194718 / 1040

How CHEMICAL WASTE MGT OF NW INC Compares

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

Metric CHEMICAL WASTE MGT OF NW INC Oregon avg Federal benchmark
Total violations 26 82.1 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 0 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 40 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 CHEMICAL WASTE MGT OF NW INC water safe to drink? ▼
CHEMICAL WASTE MGT OF NW INC (PWS ID: OR4194718) has 26 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 40 people using Groundwater sources.
How many people does CHEMICAL WASTE MGT OF NW INC serve? ▼
CHEMICAL WASTE MGT OF NW INC serves 40 people in ARLINGTON, Oregon. It is a Private-owned system using Groundwater water sources with 6 service connections.
What type of violations does CHEMICAL WASTE MGT OF NW INC have? ▼
CHEMICAL WASTE MGT OF NW INC has 26 total violations: 0 health-based violations (MCL exceedances or treatment failures), 26 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in CHEMICAL WASTE MGT OF NW INC water? ▼
Yes. UCMR5 testing detected 1 PFAS compound in CHEMICAL WASTE MGT OF NW INC's water supply: lithium. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does CHEMICAL WASTE MGT OF NW INC use? ▼
CHEMICAL WASTE MGT OF NW INC 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. 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