States ›Oregon ›Yamhill County ›Lafayette

Lafayette, OR Tap Water Quality 2026

Water quality report for Lafayette, OR — PFAS, lead and copper results, violation history and state inspection findings from EPA SDWIS.

A look at Lafayette's drinking water using EPA enforcement records: violations, lead and copper results, PFAS sampling and state inspection findings.

Main Utility: Lafayette, City Of PWSID: OR4100452 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead was not detected and no violations are open. No PFAS was detected.

C

Lafayette earns a C for water quality

Graded on violations, lead, and PFAS, with state inspection findings.

Lead: not detected
PFAS tested, none detected
43 violations since 2015, 9 health-based
No violations currently open
Lafayette's lead level vs. all Oregon community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: Not detected — 0% of the federal action level
✓ Lower lead than % of Oregon utilities
Population Served
4397
~1499 connections
Water Source
Surface water
Purchased from another system — SDWIS source code SWP
Active Violations
0
43 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
0% of EPA action level
Not detected
Action level: 15 ppb
Copper (Cu)
90th percentile of tap samples. SDWIS reports a copper figure only when a system exceeds the action level, so any value here is an exceedance.
150% of EPA action level
1,950 ppb
Action level: 1,300 ppb
Lead was not detected at the 90th percentile — the result fell below the laboratory detection limit. That is not the same as an absence of lead in every tap, and older homes with lead service lines can still show higher readings. Copper reached the action level here; a copper figure appears in SDWIS only when a system triggers it.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
Groundwater Rule MONITORING AND REPORTING — — 2025 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2025 Resolved
Groundwater Rule MONITORING AND REPORTING — — 2023 Resolved
Consumer Confidence Rule OTHER — — 2023 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2023 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2023 Resolved
Groundwater Rule MONITORING AND REPORTING — — 2022 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2022 Resolved
Groundwater Rule MONITORING AND REPORTING — — 2022 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2022 Resolved
TTHM MCL EXCEEDANCE 0.082 MG/L 0.080 mg/L 2019 Resolved
TTHM MCL EXCEEDANCE 0.085 MG/L 0.080 mg/L 2019 Resolved
TTHM MCL EXCEEDANCE 0.081 MG/L 0.080 mg/L 2018 Resolved
Xylenes, Total MONITORING AND REPORTING — 10 mg/L 2018 Resolved
Ethylbenzene MONITORING AND REPORTING — 0.7 mg/L 2018 Resolved
Toluene MONITORING AND REPORTING — 1 mg/L 2018 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2018 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2018 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2018 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2017 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2017 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2017 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2017 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2017 Resolved
Lead and Copper Rule MONITORING AND REPORTING — TT 2016 Resolved
Groundwater Rule MONITORING AND REPORTING — — 2016 Resolved
Revised Total Coliform Rule MONITORING FAILURE — — 2016 Archived
Revised Total Coliform Rule MONITORING FAILURE — — 2016 Archived
TTHM MONITORING AND REPORTING — 0.080 mg/L 2016 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2016 Resolved
COLIPHAGE MONITORING AND REPORTING — — 2016 Resolved
Public Notice OTHER — — 2015 Resolved
Public Notice OTHER — — 2015 Resolved
TTHM MCL EXCEEDANCE 0.083 MG/L 0.080 mg/L 2015 Resolved
TTHM MCL EXCEEDANCE 0.088 MG/L 0.080 mg/L 2015 Archived
TTHM MONITORING AND REPORTING — 0.080 mg/L 2015 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2015 Resolved
Groundwater Rule TREATMENT TECHNIQUE — — 2015 Resolved
TTHM MCL EXCEEDANCE 0.261 MG/L 0.080 mg/L 2015 Archived
TTHM MCL EXCEEDANCE 0.084 MG/L 0.080 mg/L 2015 Resolved
TTHM MCL EXCEEDANCE 0.083 MG/L 0.080 mg/L 2015 Resolved
Coliform (TCR) MONITORING AND REPORTING — 5% of samples 2015 Resolved
Public Notice OTHER — — 2015 Resolved
Understanding violation types MCL violations mean a contaminant exceeded the federal maximum limit — the most serious type.
TT (Treatment Technique) violations mean required treatment procedures weren't followed, but don't necessarily mean contamination occurred.

Violation History

43 violations are on record since 2015, of which 9 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Lafayette, City Of
PWSID OR4100452
Water source Surface water — Purchased from another system — SDWIS source code SWP
Population served 4,397
Service connections 1,499
Systems serving this area 1
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Lafayette tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open.
Does Lafayette water have PFAS? ▼
It was tested for the six regulated PFAS compounds and none were detected.
Who supplies water to Lafayette? ▼
Lafayette, City Of (PWSID OR4100452). Surface water. Purchased from another system — SDWIS source code SWP
When was this system last inspected? ▼
It was last inspected on 2021-09-13. Inspectors recorded 1 significant deficiency.

What Should Lafayette Residents Do?

1
Read your annual water report
Your supplier publishes a Consumer Confidence Report each July covering the prior year.
2
Check for a lead service line
Lead reaches tap water mainly through service lines and household plumbing. Suppliers now publish an inventory identifying lead lines.
3
Flush before drinking
If water has sat in pipes more than six hours, run the cold tap for two minutes before drinking or cooking.

Nearby Cities in Oregon

McMinnville, Or Tap Water Quality 2026 Yamhill Newberg, Or Tap Water Quality 2026 Yamhill Sheridan, Or Tap Water Quality 2026 Yamhill Dundee, Or Tap Water Quality 2026 Yamhill Dayton, Or Tap Water Quality 2026 Yamhill Carlton, Or Tap Water Quality 2026 Yamhill