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Gladstone, OR Tap Water Quality 2026

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

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

Main Utility: Gladstone, City Of PWSID: OR4100321 Updated: 2026 Q2
✅

No federal limits exceeded on record

Lead is 3.30 ppb, 22% of the action level and no violations are open. PFAS was sampled but not enough times for a compliance determination.

B

Gladstone earns a B for water quality

Graded on violations and lead, with state inspection findings. PFAS not tested.

Lead: 3.30 ppb — 22% of the federal action level
PFAS sampled, too few results to judge
22 violations since 2015, 8 health-based
No violations currently open
Gladstone's lead level vs. all Oregon community water systems
0 ppb5 ppb10 ppb15 ppb
Lead level: 3.30 ppb — 22% of the federal action level
✓ Lower lead than 38% of Oregon utilities
Population Served
11594
~3452 connections
Water Source
Surface water
Purchased from another system — SDWIS source code SWP
Active Violations
0
22 since 2015, all resolved

Lead & Copper Testing

Lead (Pb)
90th percentile of tap samples collected across the distribution system
22% of EPA action level
3.30 ppb
Action level: 15 ppb
The 90th-percentile lead result is 3.30 ppb, 22% of the 15 ppb federal action level. The action level is a treatment trigger, not a legal maximum, and it is measured across sampled taps rather than at any single home.

Contaminant Violations (2015–Present)

ContaminantTypeMeasuredLimitPeriodStatus
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.081 MG/L 0.060 mg/L 2025 Resolved
TTHM MCL EXCEEDANCE 0.087 MG/L 0.080 mg/L 2025 Resolved
Public Notice OTHER — — 2025 Resolved
Public Notice OTHER — — 2025 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.097 MG/L 0.060 mg/L 2025 Resolved
TTHM MCL EXCEEDANCE 0.098 MG/L 0.080 mg/L 2025 Resolved
TTHM MCL EXCEEDANCE 0.096 MG/L 0.080 mg/L 2025 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.098 MG/L 0.060 mg/L 2025 Resolved
Total Haloacetic Acids (HAA5) MCL EXCEEDANCE 0.104 MG/L 0.060 mg/L 2025 Resolved
TTHM MCL EXCEEDANCE 0.098 MG/L 0.080 mg/L 2025 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2025 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2025 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2024 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2024 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2020 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2020 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2018 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2018 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2017 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 2017 Resolved
TTHM MONITORING AND REPORTING — 0.080 mg/L 2015 Resolved
Total Haloacetic Acids (HAA5) MONITORING AND REPORTING — 0.060 mg/L 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

22 violations are on record since 2015, of which 8 were health-based. All have been resolved and none remain open.

About the Main Water System

Utility Gladstone, City Of
PWSID OR4100321
Water source Surface water — Purchased from another system — SDWIS source code SWP
Population served 11,594
Service connections 3,452
Systems serving this area 4
Regulator State primacy agency
Data through 2026 Q2 — EPA SDWIS

Frequently Asked Questions

Is Gladstone tap water safe to drink? ▼
No federal limit is exceeded on record. No violations are currently open. Lead is 3.30 ppb, 22% of the action level.
Does Gladstone water have PFAS? ▼
It was sampled, but no sampling point had enough results for a compliance determination.
Who supplies water to Gladstone? ▼
Gladstone, City Of (PWSID OR4100321), one of 4 systems serving this area. Surface water. Purchased from another system — SDWIS source code SWP
When was this system last inspected? ▼
It was last inspected on 2025-06-25. No significant deficiencies were recorded.

What Should Gladstone 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.

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