Water Quality in The Dalles, OR (97001)

EPA violation data for public water systems serving ZIP code 97001.

Past Health-Based Violations

4 health-based violations were found in the past 5 years, meaning contaminant levels exceeded federal safety limits. All have since been resolved. There are also 23 monitoring/reporting violations.

More violations than 83% of US ZIP codes.

Based on EPA compliance data. Not a substitute for an official water quality report from your utility.

353

Population

3

Water Systems

27

Violations (5yr)

4

Health-Based

Location

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Water Systems Serving This Area (3)

The Dalles, City Of

All resolved
Surface water 13,010 people served
12 violations (5yr) · All resolved
Lead tested: 0.8 ppb (limit: 15 ppb)

Young Life

4 health-based
Surface water 497 people served
12 violations (5yr) · 4 health-based · All resolved
Lead tested: 2.3 ppb (limit: 15 ppb)

Antelope, City Of

All resolved
Groundwater 46 people served
3 violations (5yr) · All resolved

Contaminants Found

TTHMHealth-Based
5 violations
All resolved
Surface Water Treatment RuleMonitoring
3 violations
All resolved
Lead and Copper RuleMonitoring

Lead and copper testing requirement. Lead exposure can cause developmental harm in children.

2 violations
All resolved
Consumer Confidence RuleMonitoring

Annual water quality report delivery requirement.

2 violations
All resolved
Gross Alpha, Excl. Radon and UMonitoring
1 violation
All resolved
Total Haloacetic Acids (HAA5)Monitoring
1 violation
All resolved
Combined Radium (-226 and -228)Monitoring
1 violation
All resolved
Interim Enhanced Surface Water Treatment RuleMonitoring
1 violation
All resolved
NitrateMonitoring

At high levels, nitrate can cause blue baby syndrome in infants.

1 violation
All resolved
COLIPHAGEMonitoring
1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
2.3 ppb measured Action level: 15 ppb

Sampled: Jul 2025

How Does This Compare?

The Dalles (97001) has more violations than 83% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 27.

Fewer violations 83th percentile More violations

Recommended Water Filters

Based on health-based violations detected in your area, these filter types are commonly used to address similar contaminants. Consult your water utility's Consumer Confidence Report for the most current data.

Activated Carbon Filter

Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.

Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor

Look for:NSF/ANSI 42 & 53 certified

Always look for filters certified by NSF International for the specific contaminants you want to remove. This is general educational information, not an endorsement of any specific product.

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