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LOWER SILETZ WATER SYSTEM

PWS ID: OR4101428 · LINCOLN CITY, Oregon 97367

LOWER SILETZ WATER SYSTEM serves 165 people in LINCOLN CITY, Oregon using Surface Water water sources. It has 25 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: LOWER SILETZ WATER SYSTEM

LOWER SILETZ WATER SYSTEM is a private-owned community water system that delivers drinking water to 165 residents in LINCOLN CITY, Oregon (Lincoln County) through 159 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 25 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 21 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 Lead and Copper Rule, 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. LOWER SILETZ WATER SYSTEM's 25 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.

Population Served
165
Total Violations
25
Health-Based Violations
0
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Private
Connections
159
County
Lincoln
School/Daycare
No
MCL Violations
0
Monitoring Violations
21
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 18 2022
Consumer Confidence Rule Other 4 2025
Coliform (TCR) MR 3 1999

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 LOWER SILETZ WATER SYSTEM.

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 OR4101428 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 Consumer Confidence Rule Other 4 SDWIS / OR4101428 / 7000
2022 Lead and Copper Rule MR 18 SDWIS / OR4101428 / 5000
1999 Coliform (TCR) MR 3 SDWIS / OR4101428 / 3100

How LOWER SILETZ WATER SYSTEM Compares

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

Metric LOWER SILETZ WATER SYSTEM Oregon avg Federal benchmark
Total violations 25 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 None 24% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 165 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 LOWER SILETZ WATER SYSTEM water safe to drink?
LOWER SILETZ WATER SYSTEM (PWS ID: OR4101428) has 25 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 165 people using Surface Water sources.
How many people does LOWER SILETZ WATER SYSTEM serve?
LOWER SILETZ WATER SYSTEM serves 165 people in LINCOLN CITY, Oregon. It is a Private-owned system using Surface Water water sources with 159 service connections.
What type of violations does LOWER SILETZ WATER SYSTEM have?
LOWER SILETZ WATER SYSTEM has 25 total violations: 0 health-based violations (MCL exceedances or treatment failures), 21 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in LOWER SILETZ WATER SYSTEM water?
No PFAS testing data is available for LOWER SILETZ WATER SYSTEM under the EPA's UCMR5 monitoring program.
What water source does LOWER SILETZ WATER SYSTEM use?
LOWER SILETZ WATER SYSTEM 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.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Related

Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial