City of Gladstone

ZipCheckup's reading of EPA SDWIS for City of Gladstone (OR4100321): 8 past health-based violations, since resolved. Dating back across the full five-year EPA tracking window, City of Gladstone encountered 14 violations, each subsequently remedied and closed - today the utility meets all federal drinking water requirements for the 12,121 residents in its service area and holds no open enforcement actions.

Data: EPA SDWIS

System Overview

City of Gladstone, (EPA ID: OR4100321) is a community water system in Oregon that serves approximately 12,121 people from surface water sources.

This system provides water to 3 ZIP codes across 3 communities.

ZIP-Area Home Safety Context: A (90/100)

This is the average Home Safety Score for 1 of 3 service-area ZIP codes with all required score domains observed. It is not a grade for the water utility.

Model 4.0.0 uses SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the UCMR 5 PFAS MCL screen, EPA radon zone, and annual EPA AirData AQI across three equally weighted domains. Missing required evidence suppresses the score.

Violation History

Status breakdown for accepted records with record years 2021-2026: 14 resolved, 0 archived, 0 addressed, and 0 unaddressed. Under this source contract, current noncompliance is the sum of addressed and unaddressed records. Archived and resolved records are excluded from current noncompliance.

Recent Violations

Contaminants Detected

The following contaminants have been flagged in EPA records for this water system:

Health Risk Details

Total Trihalomethanes (TTHM) (EPA limit: 0.08 mg/L)

Bladder & rectal cancer risk; reproductive concerns At-risk groups: pregnant women, long-term consumers of chlorinated water, people who frequently shower in chlorinated water.

Removal methods: granular activated carbon (GAC), carbon block filter, point-of-entry aeration. Find the right filter →

Haloacetic Acids (HAA5) (EPA limit: 0.06 mg/L)

Cancer risk; reproductive & developmental effects At-risk groups: pregnant women, infants, long-term consumers of chlorinated municipal water.

Removal methods: granular activated carbon (GAC), carbon block filter, reverse osmosis. Find the right filter →

Lead & Copper

EPA Lead and Copper Rule evidence attributed directly to this water system:

No copper action-level exceedance record appears for this PWSID in the accepted LCR snapshot. This does not establish a clean copper measurement.

Radon Risk in Service Area

Dominant radon zone for ZIP codes served by this system: Zone 3 (Low Risk)

ZIP Codes Served

Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by OR or modeled from parcel and building-footprint data.

• 97015 - Clackamas
• 97027 - Gladstone
• 97267 - Portland

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View the full compliance record for City of Gladstone (OR4100321) on EPA.gov.

Frequently Asked Questions

Is City of Gladstone water safe to drink?

The accepted 2026Q2 ECHO snapshot shows no current noncompliance for City of Gladstone; its 14 accepted 2021-2026 records are resolved or archived. Historical compliance status does not establish conditions at a specific tap.

How many people does City of Gladstone serve?

City of Gladstone serves approximately 12,121 people across 3 ZIP codes in Oregon.

Where does City of Gladstone get its water?

The primary water source is surface water.

@misc{zipcheckup-water-system-or4100321,
  author = {{ZipCheckup}},
  title  = {{City of Gladstone (OR): 8 Health Violations}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/or4100321/}
}