St. Louis, MO Water Quality (ZIP 63105)

Quick Answers

Is ZIP 63105 tap water safe to drink? PFAS compounds have been detected in 63105's water at an average of 0.01 ppt across 1 compound. A certified pitcher filter or reverse osmosis system is recommended, especially for sensitive populations.

What filter should I use in 63105? Match the filter to the data: reverse osmosis handles PFAS, lead, and arsenic together; NSF-53 pitchers cover the taps you drink from. A basic Brita pitcher will not remove PFAS.

ZIP 63105 Water Quality Summary

EPA testing has detected PFAS "forever chemicals" in the water system serving ZIP 63105 (St. Louis, MO). Monitoring found a peak of 0.01 ppt across 1 system, averaging 0.01 ppt over 1 detected compound.

Contamination Level: LOW – Low contamination – PFAS detected but at lower levels; monitoring continues.

Top Detected Compounds in ZIP 63105

• PFBA: 0.01 ppt

Lead in ZIP 63105 Water

EPA Lead and Copper Rule testing recorded 22 lead samples for the system serving 63105, with a 90th-percentile high of 0.0077 mg/L (within the EPA 0.015 mg/L action level). There is no safe level of lead for children; homes built before 1986 should use a certified NSF/ANSI 53 lead filter.

About the Data

These figures come from EPA UCMR5 (2023-2025) plus Lead and Copper Rule and SDWIS records for the public water system serving ZIP 63105. UCMR5 is the most comprehensive national drinking water survey in US history.

Beyond water: other exposures in St. Louis, MO

Drinking water is one exposure route. These are the other federal datasets that cover ZIP 63105 and St. Louis County, MO.

Radon risk in St. Louis County, MO

The EPA places St. Louis County, MO in Zone 2 - a moderate-risk category, with a predicted average indoor radon level between 2 and 4 pCi/L. Zone maps predict the radon potential of an area from geology and existing indoor readings - they do not describe any individual home. Radon is the leading cause of lung cancer among people who have never smoked, and the only way to know your own level is a test kit.

Lead paint risk in St. Louis County, MO

Census figures show 70% of homes in St. Louis County, MO were built before 1980, and 16% before 1950. Lead-based paint was banned for residential use in 1978, so older housing stock is the strongest available proxy for lead-paint exposure. This is a statistic about the county's housing, not a test of any particular property - if your home predates 1980, a lead swab test is the way to check.

Air quality in St. Louis County, MO

Modelled annual fine-particle pollution (PM2.5) for St. Louis County, MO averages 8.6 µg/m³, within the EPA's annual PM2.5 standard of 9 µg/m³. PM2.5 is the pollution fraction small enough to reach deep into the lungs. These are CDC modelled estimates for the county as a whole, not a reading taken at this ZIP code.

Industrial releases near 63105

EPA Toxics Release Inventory data for 2023 records 11 reporting facilities within about five miles of 63105, together reporting roughly 469,861 pounds of on-site chemical releases that year. TRI covers facilities above federal reporting thresholds, so smaller sources are not included, and a reported release is not the same as a measured concentration in air or water.