Water Quality in Decatur, IL (62501)

EPA violation data for public water systems serving ZIP code 62501.

No Health-Based Violations

None of the 2 water systems serving this ZIP have exceeded federal contaminant limits in the past 5 years. There are6 monitoring/reporting violations (missed testing deadlines), all resolved.

Better than 57% of US ZIP codes.

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

2,324

Population

2

Water Systems

6

Violations (5yr)

0

Health-Based

Location

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Water Systems Serving This Area (2)

Decatur

All resolved
Surface water 76,122 people served
1 violation (5yr) · All resolved
Lead tested: 0 ppb (limit: 15 ppb) ✓

Argenta

Groundwater 900 people served
5 violations (5yr)
Lead tested: 0 ppb (limit: 15 ppb) ✓ Copper tested: 1370 ppb (limit: 1300 ppb)

Contaminants Found

Consumer Confidence RuleMonitoring

Annual water quality report delivery requirement.

2 violations
All resolved
ChloriteMonitoring
1 violation
All resolved
Lead and Copper RuleMonitoring

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

1 violation
Has active
Total Haloacetic Acids (HAA5)Monitoring
1 violation
All resolved
TTHMMonitoring
1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
0 ppb measured Action level: 15 ppb

Sampled: Jul 2025

Copper (Cu)

Exceeds limit
1370 ppb measured Action level: 1300 ppb

Sampled: Jan 2023

How Does This Compare?

Decatur (62501) has more violations than 57% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 6, most of which are monitoring/reporting issues.

Fewer violations 57th percentile More violations

Water Filter Recommendations

No contaminant issues detected. For general protection, a basic carbon filter removes common impurities like chlorine and sediment. Look for NSF/ANSI 42 certified products.

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