Water Quality in Bloomington, IL (61774)

EPA violation data for public water systems serving ZIP code 61774.

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

949

Population

5

Water Systems

9

Violations (5yr)

3

Health-Based

Location

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Water Systems Serving This Area (5)

Bloomington

Surface water 77,610 people served
2 violations (5yr)
Lead tested: 5.2 ppb (limit: 15 ppb)

Normal

Groundwater 52,736 people served
0 violations
Lead tested: 9 ppb (limit: 15 ppb)

Olympia High School

Groundwater 1,200 people served
0 violations

Stanford

Groundwater 600 people served
0 violations
Lead tested: 1.3 ppb (limit: 15 ppb)

Allin Township Park

3 health-based
Groundwater 134 people served
7 violations (5yr) · 3 health-based

Contaminants Found

Revised Total Coliform RuleHealth-Based

Missed testing deadlines — not a detection of bacteria.

4 violations
Has active
Public NoticeMonitoring
2 violations
Has active
LEAD AND COPPER RULE REVISIONSMonitoring
1 violation
Has active
Consumer Confidence RuleMonitoring

Annual water quality report delivery requirement.

1 violation
All resolved
NitrateMonitoring

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

1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
5.2 ppb measured Action level: 15 ppb

Sampled: Jul 2025

How Does This Compare?

Bloomington (61774) has more violations than 65% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 9.

Fewer violations 65th 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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