Water Quality in Chesterfield, MO (63117)

EPA violation data for public water systems serving ZIP code 63117.

Past Health-Based Violations

1 health-based violation was found in the past 5 years, meaning contaminant levels exceeded federal safety limits. All have since been resolved. There are also 11 monitoring/reporting violations.

More violations than 70% of US ZIP codes.

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

9,261

Population

3

Water Systems

12

Violations (5yr)

1

Health-Based

Location

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Water Systems Serving This Area (3)

Mo American St Louis St Charles Counties

Surface water 1,111,000 people served
0 violations
Lead tested: 1 ppb (limit: 15 ppb)

St Louis City Pws

All resolved
Surface water 304,709 people served
6 violations (5yr) · All resolved
Lead tested: 1.8 ppb (limit: 15 ppb)

Granby Ranch Amenities

1 health-based
Groundwater 82 people served
6 violations (5yr) · 1 health-based · All resolved

Contaminants Found

Revised Total Coliform RuleHealth-Based

Missed testing deadlines — not a detection of bacteria.

4 violations
All resolved
AtrazineMonitoring
2 violations
All resolved
SimazineMonitoring
2 violations
All resolved
LASSOMonitoring
2 violations
All resolved
NitrateMonitoring

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

2 violations
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
1 ppb measured Action level: 15 ppb

Sampled: Jul 2024

How Does This Compare?

Chesterfield (63117) 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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