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Official EPA SDWIS Verified ReportWater Quality & Testing GuideHistorical Record: No Recorded SDWIS Violations

ZIP Code 64469 Water Quality & Testing Report

Maysville, MO · Dekalb County County · Updated for 2026

Sahajul HaqueCompiled & verified by Sahajul Haque from official EPA SDWIS records
Public Health & Medical Notice: Drinking water quality data on this page reflects historical compliance records submitted under the Safe Drinking Water Act. This information does not constitute medical advice or a real-time safety guarantee. If you are pregnant, nursing, preparing infant formula, or immunocompromised, consult a healthcare provider. Boiling water kills biological pathogens, but does NOT remove chemical contaminants like lead, arsenic, or PFAS.
Quick EPA Verified Answer

Is Tap Water Safe to Drink in ZIP 64469 (Maysville, MO)?

Yes, tap water in ZIP code 64469 (Maysville, MO) is safe to drink under EPA Safe Drinking Water Act standards. Supplied by Maysville Public Water System, the area earns an EPA Safety Grade of B (72/100) with 10 health violations, 4.4 ppb lead, and hard (137 mg/L / 8 GPG) water.

Safety Score
B

Water Safety Grade

Good — Minor issues on record

Health Violations

10

Total Violations

14

Lead Risk

High

Contaminants

4

⚠

Active Water Quality Issues Detected

EPA records show 4 unresolved violations. Contact Maysville Public Water System for current status.

About Tap Water in ZIP Code 64469

Tap water in ZIP code 64469 (Maysville, MO) is distributed by Maysville Public Water System (EPA ID: MO1010510), serving approximately 1,096 residents. Based on EPA Safe Drinking Water Act compliance records, this system receives a water safety grade of B with a composite quality score of 72/100.

Water System

Maysville Public Water System

EPA ID: MO1010510

Water Source

Surface Water

Population Served

1,096 residents

County

Dekalb County County, Missouri

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Lead Levels in ZIP 64469

EPA action level: 15 ppb | Public health goal: 0 ppb

Lead Level: 4.4 ppb — Very Low

The 90th percentile lead level in 64469 is 4.4 ppb. This meets the EPA action level of 15 ppb. Health experts recommend a target of 0 ppb for optimal safety.

Lead exposure risk in 64469 is rated High. EPA models estimate a 52% exposure probability based on housing and infrastructure age.

Lead Level (90th percentile)
4.40 ppb (0.0044 mg/L)
Lead Exposure Risk Rating
High
Lead Exposure Probability

EPA model estimate based on housing age and infrastructure

52%
Note: Lead levels above are the 90th percentile from EPA monitoring — meaning 90% of samples were at or below this level. Even "undetected" tap water lead doesn't account for lead leaching from home plumbing. If your home was built before 1986, individual tap testing is recommended.
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Water Hardness & Mineral Content

Grains per gallon (GPG) & Parts per million (PPM / mg/L)

Classification: Hard8 GPG · 137 mg/L

Water in ZIP 64469 is Hard (137 mg/L / 8 GPG). Residents may notice white mineral spots on glassware, reduced soap efficiency, and mineral scale on faucets and showerheads.

Recommendation: An ion-exchange water softener or descaler is recommended to prolong the life of water heaters, dishwashers, and plumbing.
Hardness (GPG)

Grains per gallon

8 GPG
Hardness (PPM / mg/L)

Parts per million CaCO3

137 mg/L
Appliance Scaling Risk
High / Severe

Official EPA SDWIS Database Entry

Utility: Maysville Public Water System · PWSID: MO1010510

Verify on EPA.gov
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Violation History

Past 5 years — EPA SDWIS data

Maysville Public Water System has recorded 10 health-based violations out of 14 total violations over the past 5 years. 4 violations remain unresolved in EPA tracking records.

Total Violations (5 yr)
14
Health-Based Violations
10
Unresolved Violations
4
Boil Water Advisories
0
Compliance Risk
Critical

Regulatory compliance risk for this utility is rated Critical based on past reporting and enforcement records.

⚗️

Contaminants Detected

Contaminants with health-based violations on record

EPA records identify 4 contaminants with health-based violations in the past 5 years: Fecal Coliform, E. coli, Contaminant 1009, Haloacetic Acids (HAA5).

Fecal ColiformE. coliContaminant 1009Haloacetic Acids (HAA5)

⚖ Enforcement Actions

EPA or state regulators have issued 10 enforcement actions to address compliance lapses.
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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.

Water Source Type
Surface Water
Energy Burden

% of household income spent on energy — indicator of older infrastructure

1.87%

Water Quality Testing in ZIP 64469

Tap Water & Well Testing Recommendations

Residents in ZIP code 64469 served by Maysville Public Water System 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.
Certified Lab Testing: Always use an EPA-certified drinking water laboratory in MO for formal legal or real estate compliance testing.

🛡 What Should You Do? — ZIP 64469 Recommendations

  • ✓ Run cold water for 30 seconds each morning before use — especially if pipes are old
  • ✓ Request your annual Consumer Confidence Report from Maysville Public Water System
  • ✓ If your home was built before 1986, consider testing your own tap for lead
  • ✓ Use a pitcher filter (NSF/ANSI 42 certified) for improved taste

Recommended Taste & Safety Filter:

🚰

NSF/ANSI 53 Certified Pitcher Filter

Best for removing aesthetic chlorine, odors, and low-level heavy metals.

Filter Selection Guide →

Frequently Asked Questions — ZIP 64469 Water Quality

Is tap water safe to drink in ZIP code 64469?+
Yes — tap water in 64469 (Maysville, MO) meets EPA standards with a water safety grade of B. No health-based violations are on record in the past 5 years.
How do I get my water tested in ZIP 64469 (Maysville, MO)?+
To test water quality in ZIP 64469, you can order a certified drinking water test kit or send water samples to an EPA/NELAP certified laboratory in MO. Certified testing checks for lead, coliform bacteria, nitrates, hardness, and PFAS that standard test strips miss. Contact Missouri Department of Natural Resources for a list of certified regional labs.
How hard is the tap water in 64469?+
Tap water in 64469 is classified as Hard with an estimated mineral hardness of 137 mg/L (8 GPG). An ion-exchange water softener or descaler is recommended to prolong the life of water heaters, dishwashers, and plumbing.
Should I test private well water in 64469?+
Yes. Unlike municipal systems, private wells in 64469 are not regulated by the EPA or local utilities. Private well owners should test their water annually for coliform bacteria and nitrates, and every 3 to 5 years for heavy metals (lead, arsenic) and volatile organic compounds.
What is the lead level in 64469 tap water?+
The 90th percentile lead level in 64469 is 4.4 ppb. The EPA action level is 15 ppb. This is below the EPA action level.
Is there an active boil water notice in 64469?+
There are currently no active boil water advisories on record for 64469. Water treatment systems are operating within normal parameters.
Who provides tap water to 64469?+
Tap water in ZIP code 64469 is provided by Maysville Public Water System (EPA ID: MO1010510), serving approximately 1,096 residents.
What water filter should I use in 64469?+
Based on water metrics for 64469, we recommend Reverse Osmosis (PFAS & Lead). Look for certifications such as NSF/ANSI 58 (Reverse Osmosis), NSF/ANSI 53 (Lead & VOCs), NSF/ANSI P473 (PFAS/PFOS).

Data Sources & Methodology

Water quality data for ZIP code 64469 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 Maysville Public Water System. 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 →