Water Quality in Chesterfield, MO (63301)

EPA violation data for public water systems serving ZIP code 63301.

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

52,667

Population

37

Water Systems

57

Violations (5yr)

5

Health-Based

Location

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Water Systems Serving This Area (37)

Mo American St Louis St Charles Counties

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

St Charles County Pwsd 2

All resolved
Purchased surface water 100,587 people served
2 violations (5yr) · All resolved
Lead tested: 0 ppb (limit: 15 ppb)

St Charles Pws

All resolved
Purchased surface water 73,040 people served
1 violation (5yr) · All resolved
Lead tested: 0 ppb (limit: 15 ppb)

Mo American St Charles

Purchased surface water 73,000 people served
0 violations

St Peters Pws

Purchased surface water 52,575 people served
0 violations
Lead tested: 0 ppb (limit: 15 ppb)

Wentzville Pws

Groundwater 41,784 people served
0 violations
Lead tested: 4.77 ppb (limit: 15 ppb)

Ofallon Pws

All resolved
Purchased surface water 32,515 people served
1 violation (5yr) · All resolved
Lead tested: 1.48 ppb (limit: 15 ppb)

Orchard Farm Schools

All resolved
Groundwater 1,600 people served
1 violation (5yr) · All resolved
Lead tested: 1.9 ppb (limit: 15 ppb)

Indian Camp Creek Park

Groundwater 300 people served
0 violations

Green Acres Subd

Groundwater 300 people served
0 violations

Daniel Boone Home

All resolved
Groundwater 162 people served
1 violation (5yr) · All resolved
Lead tested: 1.99 ppb (limit: 15 ppb)

National Cart Company

1 health-based
Groundwater 150 people served
3 violations (5yr) · 1 health-based

West Alton Elementary School

Groundwater 106 people served
0 violations

Towne Park

3 health-based
Groundwater 100 people served
4 violations (5yr) · 3 health-based

Cheshire Subd

Groundwater 95 people served
0 violations

Fountain N Lake Mhp

Groundwater 90 people served
0 violations

Port Charles Harbor

All resolved
Groundwater 75 people served
1 violation (5yr) · All resolved

Polestar Marina

All resolved
Groundwater 70 people served
5 violations (5yr) · All resolved

Yacht Club Of St Louis

Groundwater 50 people served
0 violations

Broemmelsiek Park

Groundwater 50 people served
0 violations

River Island Marina

Groundwater 41 people served
0 violations

North Shore Marina

1 health-based
Groundwater 40 people served
25 violations (5yr) · 1 health-based

Wimer Boarding Home

Groundwater 35 people served
0 violations

Marina Inn

Groundwater 35 people served
0 violations

Trinity Lutheran

Groundwater 35 people served
0 violations

Woodland Marina

All resolved
Groundwater 30 people served
3 violations (5yr) · All resolved

St Charles-Elm Point Plant

Groundwater 25 people served
0 violations

Camp Woodland Hills

Groundwater 25 people served
5 violations (5yr)

Oglesby Park

Groundwater 25 people served
0 violations

St Charles-Mo River Plt

Surface water 25 people served
0 violations

Flo Ann Subd

Groundwater 25 people served
0 violations

Two Branch Marina

All resolved
Groundwater 25 people served
4 violations (5yr) · All resolved

St Charles County Water Dept

Groundwater 25 people served
0 violations

The Iceberg Marion

Purchased surface water 25 people served
0 violations

Johns Boat Harbor

All resolved
Groundwater 25 people served
1 violation (5yr) · All resolved

Missouri Bluffs Park

Groundwater 25 people served
0 violations

Matson Hill Park Barn

Groundwater 25 people served
0 violations

Contaminants Found

Revised Total Coliform RuleHealth-Based

Missed testing deadlines — not a detection of bacteria.

25 violations
Has active
Groundwater RuleHealth-Based
4 violations
All resolved
Stage 1 Disinfectants and Disinfection Byproducts RuleHealth-Based
1 violation
All resolved
Public NoticeMonitoring
15 violations
Has active
E. COLIMonitoring
9 violations
All resolved
Lead and Copper RuleMonitoring

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

1 violation
All resolved
LEAD AND COPPER RULE REVISIONSMonitoring
1 violation
All resolved
Nitrate-NitriteMonitoring
1 violation
All resolved

Lead & Copper Levels

Lead (Pb)

Within limit
1 ppb measured Action level: 15 ppb

Sampled: Jul 2024

How Does This Compare?

Chesterfield (63301) has more violations than 91% of US ZIP codes. The national average is 18.87 violations per ZIP over 5 years. This ZIP has 57.

Fewer violations 91th 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

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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