Water Quality in Lewiston, ID (83545)

EPA violation data for public water systems serving ZIP code 83545.

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

458

Population

4

Water Systems

12

Violations (5yr)

1

Health-Based

Location

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Water Systems Serving This Area (4)

Lewiston Orchards Irrigation Dist

Groundwater 20,000 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

Lewiston City Of

Surface water 15,001 people served
0 violations
Lead tested: 1 ppb (limit: 15 ppb)

Peck Water System

Surface water 210 people served
3 violations (5yr)
Lead tested: 2 ppb (limit: 15 ppb)

Canyon Inn

1 health-based
Groundwater 30 people served
9 violations (5yr) · 1 health-based · All resolved

Contaminants Found

Revised Total Coliform RuleHealth-Based

Missed testing deadlines — not a detection of bacteria.

6 violations
All resolved
E. COLIMonitoring
3 violations
All resolved
TTHMMonitoring
1 violation
Has active
Total Haloacetic Acids (HAA5)Monitoring
1 violation
Has active
Public NoticeMonitoring
1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
1 ppb measured Action level: 15 ppb

Sampled: Jan 2025

How Does This Compare?

Lewiston (83545) has more violations than 70% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 12.

Fewer violations 70th 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.

UV Water Purifier

Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.

Targets:E. coli, Coliform, Giardia, Cryptosporidium

Look for:NSF/ANSI 55 (Class A) 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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