ZipCheckup grade for 63045: B.
This ZIP has a few items worth a quick check.
Your top priority: use a filter certified to reduce PFAS; check which ones. Check your ZIP → EPA PFAS info
Earth City, MO (63045): PFAS Detected in Mapped Water Systems - 83/100
EPA data for Mo American St Louis St Charles Counties
EPA records for the water systems mapped to 63045 in Earth City, MO contain zero recorded violations for inclusive record years 2021 through 2026. This does not establish that every category was monitored or published, and it does not cover events outside that source window.
Data source: U.S. Environmental Protection Agency (EPA) SDWIS
At a Glance
- Water No drinking-water violations in EPA records since 2021.
- Lead The reported 90th-percentile lead result is below the laboratory reporting limit, not a measured zero; EPA's health goal for lead is zero.
- PFAS PFAS detected in UCMR5 sampling; see the PFAS section for each compound, compared with the federal PFAS MCL where one exists.
- Radon EPA Zone 2 - county-level radon potential, not a home measurement.
Get updates when new water-quality data is available for your area
Free alerts when new EPA data affects ZIP code 63045. No spam - just safety updates.
Unsubscribe anytime. We only send updates when your safety score changes. See our Privacy Policy.
See incorrect data? Let us know
In safety data on file for 63045 in Earth City, the high-priority tier holds 1 finding, with no critical-level conditions present.
Score Breakdown
Overall Home Safety Score: 83/100
This is the published model score. Component and domain values are shown independently; they are not added together on this page.
Canonical components
Required domains
Coverage: 4 of 4 components and 3 of 3 domains observed.
Model 4.0.0; series home-safety-v4-cross-vertical.
Safety & Health (8) HIGH
Your Water System
ZIP code 63045 in Earth City, Missouri is mapped to the water system Mo American St Louis St Charles Counties (EPA ID: MO6010716). This system provides water to approximately 1,111,000 people from surface water sources.
Other Water Quality Reports in Missouri
- 63005 (Chesterfield) - 3 violations recorded for mapped water systems
- 63006 (Chesterfield)
- 63010 (Arnold) - 2 violations recorded for mapped water systems
- 63011 (Ballwin) - 1 violation recorded for mapped water systems
- 63012 (Barnhart) - 11 violations recorded for mapped water systems
- 63013 (Beaufort) - 6 violations recorded for mapped water systems
- 63014 (Berger) - 3 violations recorded for mapped water systems
- 63015 (Catawissa) - 4 violations recorded for mapped water systems
- 63016 (Cedar Hill) - 6 violations recorded for mapped water systems
- 63017 (Chesterfield)
- 63019 (Crystal City) - 7 violations recorded for mapped water systems
- 63020 (De Soto) - 9 violations recorded for mapped water systems
- 63021 (Ballwin) - 4 violations recorded for mapped water systems
- 63022 (Ballwin)
- 63023 (Dittmer) - 1 violation recorded for mapped water systems
- 63024 (Ballwin)
- 63025 (Eureka) - 6 violations recorded for mapped water systems
- 63026 (Fenton) - 5 violations recorded for mapped water systems
- 63028 (Festus) - 15 violations recorded for mapped water systems
- 63030 (Fletcher)
Nearby Water Quality Reports
- 63302 (Saint Charles) - 1 mi
- 63044 (Bridgeton) - 3 mi
- 63301 (Saint Charles) - 3 mi - 1 violation recorded for mapped water systems
- 63043 (Maryland Heights) - 3 mi
- 63346 (Flinthill) - 4 mi
- 63303 (Saint Charles) - 4 mi - 1 violation recorded for mapped water systems
- 63146 (Saint Louis) - 5 mi
- 63074 (Saint Ann) - 5 mi
- 63042 (Hazelwood) - 5 mi
- 63134 (Saint Louis) - 7 mi
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Mo American St Louis St Charles Counties (MO6010716) on EPA.gov.
5 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.
PFAS Contamination Detected
PFAS ("forever chemicals") have been reported in samples from water systems associated with ZIP code 63045.
Detected compounds: PFBA.
Highest measured level: 0.0051 µg/L
Reverse osmosis (RO) and activated carbon block filters can reduce PFAS at the tap. Certifications list the compounds covered: an NSF/ANSI 53 or 58 claim for PFOA/PFOS does not cover every PFAS, so check that the product lists the compounds detected here.
Environmental Hazards (9) CRITICAL
Home & Infrastructure (2) OK
Cost & Community (7) OK
CPSC product recall notices
These national notices are not matched to this ZIP code or water system.
Frequently Asked Questions
Is the tap water in 63045 safe to drink?
EPA SDWIS records 0 violations since 2021 across the water systems mapped to ZIP 63045 (primary system: Mo American St Louis St Charles Counties), including 0 health-based. The violation table above shows which system each record belongs to. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.
Where does 63045's water come from?
The recorded water source for Mo American St Louis St Charles Counties, a system mapped to ZIP code 63045, is Surface water. This system serves approximately 1,111,000 people.
How does Earth City water compare to the national average?
Earth City's Home Safety Score ranks better than 67% of U.S. ZIP codes, and at or above 85% within Missouri.
How can I get my water tested in Earth City?
If Mo American St Louis St Charles Counties supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.
What is the radon risk for 63045?
63045 is mapped to a county in EPA Radon Zone 2 (moderate county-level radon potential; EPA recommends testing every home), located in St. Louis County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.
Are there PFAS (forever chemicals) in 63045's water?
Yes, PFAS have been detected in samples from water systems mapped to 63045. Reverse osmosis and activated carbon filters certified to NSF/ANSI 53 or 58 specifically for PFOA/PFOS reduction can reduce PFAS.
How to cite this page
ZipCheckup. (2026). Earth City, MO (63045): PFAS Detected in Mapped Water Systems - 83/100. https://zipcheckup.com/report/63045/
@misc{zipcheckup-report-63045,
author = {{ZipCheckup}},
title = {{Earth City, MO (63045): PFAS Detected in Mapped Water Systems - 83/100}},
year = {2026},
url = {https://zipcheckup.com/report/63045/}
}
Page version: October 2026.
Nearby ZIP Code Reports
Water quality comparison for ZIP codes near 63045
| ZIP Code | City, State | Distance | Grade | Violations |
|---|---|---|---|---|
| 63302 | Saint Charles, MO | 1.3 mi | N/A | 0 |
| 63044 | Bridgeton, MO | 3.0 mi | B | 0 |
| 63301 | Saint Charles, MO | 3.1 mi | C | 1 |
| 63043 | Maryland Heights, MO | 3.3 mi | B | 0 |
| 63346 | Flinthill, MO | 4.0 mi | N/A | 0 |
| 63303 | Saint Charles, MO | 4.4 mi | C | 1 |
| 63146 | Saint Louis, MO | 4.5 mi | B | 0 |
| 63074 | Saint Ann, MO | 5.2 mi | B | 0 |
| 63042 | Hazelwood, MO | 5.4 mi | B | 0 |
| 63134 | Saint Louis, MO | 7.0 mi | B | 0 |
Nearby ZIP Code Reports
2026 Rankings for Your Area
Overall safety breakdown
Home Safety Score →Find the right water filter
Water Filter Matcher →Compare filters, tests & services
Compare My Options →Compare with another ZIP
Compare Tool →2026 Rankings