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WaterSafeCheck
Official EPA SDWIS Verified ReportWater Quality & Testing GuideStatus: Normal Operations

ZIP Code 97293 Water Quality & Testing Report

Portland, OR · Multnomah County County · Updated for 2026

Quick EPA Verified Answer

Is Tap Water Safe to Drink in ZIP 97293 (Portland, OR)?

Yes, tap water in ZIP code 97293 (Portland, OR) is safe to drink under EPA Safe Drinking Water Act standards. Supplied by Portland Water Bureau, the area earns an EPA Safety Grade of B (82/100) with 0 health violations, 4.9 ppb lead, and soft (51 mg/L / 3 GPG) water.

Safety Score
B

Water Safety Grade

Good — Minor issues on record

Health Violations

0

Total Violations

2

Lead Risk

N/A

Contaminants

0

About Tap Water in ZIP Code 97293

Tap water in ZIP code 97293 (Portland, OR) is distributed by Portland Water Bureau (EPA ID: OR4100657), serving approximately 666,200 residents. Based on EPA Safe Drinking Water Act compliance records, this system receives a water safety grade of B with a composite quality score of 82/100.

Water System

Portland Water Bureau

EPA ID: OR4100657

Water Source

Surface Water

Population Served

666,200 residents

County

Multnomah County County, Oregon

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Lead Levels in ZIP 97293

EPA action level: 15 ppb | Public health goal: 0 ppb

Lead Level: 4.9 ppb — Very Low

The 90th percentile lead level in 97293 is 4.9 ppb. This meets the EPA action level of 15 ppb. Health experts recommend a target of 0 ppb for optimal safety.
Lead Level (90th percentile)
4.90 ppb (0.0049 mg/L)
Lead (Consumer Confidence Report)

From annual CCR filing

4.4 ppb
Copper (Consumer Confidence Report)

From annual CCR filing

0.1 ppb
Lead Exposure Risk Rating
Unknown
Note: Lead levels above are the 90th percentile from EPA monitoring — meaning 90% of samples were at or below this level. Even "undetected" tap water lead doesn't account for lead leaching from home plumbing. If your home was built before 1986, individual tap testing is recommended.
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Water Hardness & Mineral Content

Grains per gallon (GPG) & Parts per million (PPM / mg/L)

Classification: Soft3 GPG · 51 mg/L

Water in ZIP 97293 is classified as Soft (51 mg/L / 3 GPG). Soft water produces abundant soap lather, prevents scale buildup in water heaters, and does not leave spots on dishes.

Recommendation: No water softener is needed. Standard carbon filtration is sufficient for taste and chlorine reduction.
Hardness (GPG)

Grains per gallon

3 GPG
Hardness (PPM / mg/L)

Parts per million CaCO3

51 mg/L
Appliance Scaling Risk
Very Low

Official EPA SDWIS Database Entry

Utility: Portland Water Bureau · PWSID: OR4100657

Verify on EPA.gov
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Violation History

Past 5 years — EPA SDWIS data

Portland Water Bureau has recorded 2 violations, but none are health-based (e.g., administrative or monitoring infractions).

Total Violations (5 yr)
2
Health-Based Violations
0
Unresolved Violations
0
Boil Water Advisories
0
Compliance Risk
Moderate

Regulatory compliance risk for this utility is rated Moderate based on past reporting and enforcement records.

⚗️

Contaminants Detected

Contaminants with health-based violations on record

No health-based contaminant violations are on record for ZIP code 97293 under the Safe Drinking Water Act.

From Consumer Confidence Report:

Total trihalomethanes (41 ppb)

⚖ Enforcement Actions

EPA or state regulators have issued 6 enforcement actions to address compliance lapses.
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Water Source & Environmental Factors

Surface Water

This system draws water from lakes, rivers, or reservoirs. Surface water is treated to remove sediment, microorganisms, and chemical contaminants before reaching taps.

Water Source Type
Surface Water
CCR Source Classification
Bull Run Watershed surface water and Columbia South Shore Well Field groundwater
EPA Radon Zone

Moderate potential

Zone 2

EPA Radon Zone 2 — moderate radon potential. The EPA recommends testing your home regardless of zone designation.

Water Quality Testing in ZIP 97293

Tap Water & Well Testing Recommendations

Residents in ZIP code 97293 served by Portland Water Bureau can test tap water or private well systems to verify water purity. Testing detects hidden contaminants before they impact family health.

Tap Water Testing Steps

  • 1.Conduct a certified lead check if your home was constructed before 1986.
  • 2.Use certified lab testing kits rather than uncalibrated test strips for regulated compliance.
  • 3.Sample water from both your kitchen faucet and water heater to compare line purity.

Private Well Testing Steps

  • •Test for Coliform bacteria and Nitrates annually.
  • •Test for heavy metals, radon, and PFAS every 3 years.
  • •Send samples to a state-certified drinking water laboratory recognized by Oregon Health Authority.
Certified Lab Testing: Always use an EPA-certified drinking water laboratory in OR for formal legal or real estate compliance testing.

🛡 What Should You Do? — ZIP 97293 Recommendations

  • ✓ Run cold water for 30 seconds each morning before use — especially if pipes are old
  • ✓ Request your annual Consumer Confidence Report from Portland Water Bureau
  • ✓ If your home was built before 1986, consider testing your own tap for lead
  • ✓ Use a pitcher filter (NSF/ANSI 42 certified) for improved taste

Recommended Taste & Safety Filter:

🚰

NSF/ANSI 53 Certified Pitcher Filter

Best for removing aesthetic chlorine, odors, and low-level heavy metals.

Filter Selection Guide →

Frequently Asked Questions — ZIP 97293 Water Quality

Is tap water safe to drink in ZIP code 97293?+
Yes — tap water in 97293 (Portland, OR) meets EPA standards with a water safety grade of B. No health-based violations are on record in the past 5 years.
How do I get my water tested in ZIP 97293 (Portland, OR)?+
To test water quality in ZIP 97293, you can order a certified drinking water test kit or send water samples to an EPA/NELAP certified laboratory in OR. Certified testing checks for lead, coliform bacteria, nitrates, hardness, and PFAS that standard test strips miss. Contact Oregon Health Authority for a list of certified regional labs.
How hard is the tap water in 97293?+
Tap water in 97293 is classified as Soft with an estimated mineral hardness of 51 mg/L (3 GPG). No water softener is needed. Standard carbon filtration is sufficient for taste and chlorine reduction.
Should I test private well water in 97293?+
Yes. Unlike municipal systems, private wells in 97293 are not regulated by the EPA or local utilities. Private well owners should test their water annually for coliform bacteria and nitrates, and every 3 to 5 years for heavy metals (lead, arsenic) and volatile organic compounds.
What is the lead level in 97293 tap water?+
The 90th percentile lead level in 97293 is 4.9 ppb. The EPA action level is 15 ppb. This is below the EPA action level.
Is there an active boil water notice in 97293?+
There are currently no active boil water advisories on record for 97293. Water treatment systems are operating within normal parameters.
Who provides tap water to 97293?+
Tap water in ZIP code 97293 is provided by Portland Water Bureau (EPA ID: OR4100657), serving approximately 666,200 residents.
What water filter should I use in 97293?+
Based on water metrics for 97293, we recommend None / Standard Pitcher. Look for certifications such as NSF/ANSI 42 (Chlorine, Taste & Odor).

Data Sources & Methodology

Water quality data for ZIP code 97293 is compiled from the EPA Safe Drinking Water Information System (SDWIS), EPA ECHO enforcement database, UCMR5 unregulated contaminant monitoring, and Consumer Confidence Reports filed by Portland Water Bureau. Safety scores are composite metrics derived from violation history, lead levels, enforcement actions, and infrastructure risk indicators. Data reflects a 5-year monitoring window. Last dataset update: 2024. View EPA source data →