ZIP Code 63128 Water Quality & Testing Report
Saint Louis, MO · St Louis County County · Updated for 2026
Compiled & verified by Sahajul Haque from official EPA SDWIS recordsIs Tap Water Safe to Drink in ZIP 63128 (Saint Louis, MO)?
Caution / Filtration Recommended: Tap water in ZIP code 63128 (Saint Louis, MO) has compliance concerns, earning an EPA Safety Grade of D (45/100) due to 0 health violation(s) and 0 ppb lead. While treated by Mo American St Louis St Charles Counties, residents are advised to use an NSF/ANSI 53 certified water filter for drinking and cooking.
Water Safety Grade
Poor — Multiple violations recorded
Health Violations
0
Total Violations
0
Lead Risk
High
Contaminants
0
About Tap Water in ZIP Code 63128
Tap water in ZIP code 63128 (Saint Louis, MO) is distributed by Mo American St Louis St Charles Counties (EPA ID: MO6010716), serving approximately 1,111,000 residents. Based on EPA Safe Drinking Water Act compliance records, this system receives a water safety grade of D with a composite quality score of 45/100.
Water System
Mo American St Louis St Charles Counties
EPA ID: MO6010716
Water Source
Surface Water
Population Served
1,111,000 residents
County
St Louis County County, Missouri
Lead Levels in ZIP 63128
EPA action level: 15 ppb | Public health goal: 0 ppb
Lead Data Not Available
Lead exposure risk in 63128 is rated High. EPA models estimate a 48% exposure probability based on housing and infrastructure age.
EPA model estimate based on housing age and infrastructure
Water Hardness & Mineral Content
Grains per gallon (GPG) & Parts per million (PPM / mg/L)
Water in ZIP 63128 is Hard (131 mg/L / 7.7 GPG). Residents may notice white mineral spots on glassware, reduced soap efficiency, and mineral scale on faucets and showerheads.
Grains per gallon
Parts per million CaCO3
Official EPA SDWIS Database Entry
Utility: Mo American St Louis St Charles Counties · PWSID: MO6010716
Violation History
Past 5 years — EPA SDWIS data
Mo American St Louis St Charles Counties has recorded zero violations in the EPA compliance database over the past 5 years.
Contaminants Detected
Contaminants with health-based violations on record
No health-based contaminant violations are on record for ZIP code 63128 under the Safe Drinking Water Act.
Water Source & Environmental Factors
Surface Water
This system draws water from lakes, rivers, or reservoirs. Surface water is treated to remove sediment, microorganisms, and chemical contaminants before reaching taps.
Moderate potential
Estimated annual flood-related costs per property
% of household income spent on energy — indicator of older infrastructure
EPA Radon Zone 2 — moderate radon potential. The EPA recommends testing your home regardless of zone designation.
Water Quality Testing in ZIP 63128
Tap Water & Well Testing Recommendations
Residents in ZIP code 63128 served by Mo American St Louis St Charles Counties can test tap water or private well systems to verify water purity. Testing detects hidden contaminants before they impact family health.
Tap Water Testing Steps
- 1.Conduct a certified lead check if your home was constructed before 1986.
- 2.Use certified lab testing kits rather than uncalibrated test strips for regulated compliance.
- 3.Sample water from both your kitchen faucet and water heater to compare line purity.
Private Well Testing Steps
- •Test for Coliform bacteria and Nitrates annually.
- •Test for heavy metals, radon, and PFAS every 3 years.
- •Send samples to a state-certified drinking water laboratory recognized by Missouri Department of Natural Resources.
🛡 What Should You Do? — ZIP 63128 Recommendations
Serious water quality concerns — action recommended
- 🚨 Install a certified NSF/ANSI 53 or 58 (reverse osmosis) filter immediately for drinking and cooking
- 🚨 Do not give unfiltered water to children, pregnant women, or immunocompromised individuals
- 🚨 Contact Mo American St Louis St Charles Counties to request the current violation status and corrective action plan
- 🚨 Report concerns to your state environmental agency or call the EPA hotline: 1-800-426-4791
- 🚨 Consider having your home's tap water independently tested by a certified lab
Recommended Water Treatment Systems:
NSF 53 Lead Pitcher Filter
Certified to remove lead. Recommended for immediate protection.
NSF 58 Under-Sink RO System
Reverse Osmosis system certified to remove PFAS, heavy metals, and viruses.
Frequently Asked Questions — ZIP 63128 Water Quality
Is tap water safe to drink in ZIP code 63128?+
How do I get my water tested in ZIP 63128 (Saint Louis, MO)?+
How hard is the tap water in 63128?+
Should I test private well water in 63128?+
What is the lead level in 63128 tap water?+
Is there an active boil water notice in 63128?+
Who provides tap water to 63128?+
What water filter should I use in 63128?+
Data Sources & Methodology
Water quality data for ZIP code 63128 is compiled from the EPA Safe Drinking Water Information System (SDWIS), EPA ECHO enforcement database, UCMR5 unregulated contaminant monitoring, and Consumer Confidence Reports filed by Mo American St Louis St Charles Counties. Safety scores are composite metrics derived from violation history, lead levels, enforcement actions, and infrastructure risk indicators. Data reflects a 5-year monitoring window. Last dataset update: 2024. View EPA source data →