WaterVerge

Is Marble Hill, MO Tap Water Safe to Drink?

Graded B+, with 14 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

2K residents served 3 water systems PWSID: MO4010483
Overall Score
80 / 100
Violations
14 active
Last Updated
May 2026
Source
Groundwater
#317 of 509 in Missouri Top 51% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
B+GRADE
Water Quality Grade
80/100
waterverge.com
B+ 80/100

Marble Hill, MO — Water Quality Report

Marble Hill's drinking water received a grade of B+ (80 out of 100), indicating good water quality. The city's 3 water systems serve approximately 1,606 residents using groundwater.

Lead levels were measured at 0.0 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.

The system has 50 violations on record, including 15 health-based violations. 14 remain unresolved.

Data last updated: May 2026 · Source: EPA SDWIS, UCMR 5
Analysis

What to know about Marble Hill's water

Marble Hill ranks #317 out of 509 cities in Missouri for water quality, placing it below average in the state.

Marble Hill relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.

As a small community water system, Marble Hill may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

The system has seen 6 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.

Quality Breakdown

Water quality score

See methodology →
80 out of 100 Grade B+
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
33/45
C
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 0.0 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
5/10
D
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Marble Hill, MO water safe to drink?

Concerns Identified

Marble Hill's drinking water has significant quality concerns based on EPA testing data. With a grade of B+ (80/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 3 water systems serve approximately 1,606 residents using groundwater (wells).

14
Active Violations
0.0 ppb
Lead (90th %ile)
5 events
Disaster History

Recent water quality updates for Marble Hill

A timeline of significant water quality events, violations, and data updates.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Marble Hill's water quality assessment. Grade: B+ (80/100).

Violation
2 drinking water violations recorded

Contaminants: LEAD AND COPPER RULE REVISIONS, Consumer Confidence Rule.

Violation
1 drinking water violation recorded

Contaminants: LEAD AND COPPER RULE REVISIONS.

Violation
1 drinking water violation recorded

Contaminants: Revised Total Coliform Rule.

Disaster
SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS AND FLOODING

Federal disaster declaration (FEMA DR-4317). Flood event — may have impacted local water infrastructure.

Disaster
SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING

Federal disaster declaration (FEMA DR-4250). Flood event — may have impacted local water infrastructure.

Key contaminant findings

Based on the most recent EPA sampling data for Marble Hill's water supply.

Lead Within Limits
Detected: 0.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Marble Hill's water system has 50 total violations on record, including 15 health-based violations. 14 remain unresolved. 6 violations were issued in the last 5 years.

RPTOtherMONMRMCL
Most recent violations:
Jul 2025 LEAD AND COPPER RULE REVISIONS Open
Jul 2025 Consumer Confidence Rule Open
Oct 2024 LEAD AND COPPER RULE REVISIONS Open
Nov 2023 Revised Total Coliform Rule Resolved
Jul 2022 Revised Total Coliform Rule Resolved

Flood & environmental risk

Bollinger County has experienced 5 federally declared disasters since 1982. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies.

SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS AND FLOODING
Flood FEMA DR-4317
SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING
Flood FEMA DR-4250
SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING
Flood FEMA DR-3374

Where does Marble Hill's water come from?

Marble Hill's drinking water comes from groundwater (wells), supplied by 3 water systems serving approximately 1,606 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.

What Marble Hill residents can do

Install a water filter

Recommended: NSF-certified water filter. This addresses the specific contaminants found in Marble Hill's water.

Request your utility's CCR

Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.

Monitor alerts during storms

Marble Hill's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.

Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Safe
0.0 ppb
EPA Action Level: 15 ppb · 0% of limit
Safe Level
Compliance Record

Violation summary

50
Total violations
15
Health-based
14
Active / unresolved
Jul 2025
Most recent violation
Compliance Record

Violations & advisories

50 Total
14 Active
15 Health-based
36 Resolved
Violations by category
Total Coliform Rule
29
Revised Total Coliform Rule
6
Consumer Confidence Rule
5
Lead and Copper Rule Revisions
2
Public Notice Rule and Revised PN Rule
1
Jul 2025 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Jul 2025 Active
Consumer Confidence Rule
Other Violation 0
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Oct 2015 Active
Public Notice
Other Violation 0
Oct 2015 Active
E. COLI
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2010 Active
Consumer Confidence Rule
Other Violation 0
Jul 2010 Active
Consumer Confidence Rule
Other Violation 0
Oct 2008 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Apr 2008 Active
Stage 2 Disinfectants and Disinfection Byproducts Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2002 Active
Consumer Confidence Rule
Other Violation 0
Jul 2000 Active
Consumer Confidence Rule
Other Violation 0
Active
Compliance Violation
Monitoring 0
Active
Compliance Violation
Monitoring 0
Active
Compliance Violation
Monitoring 0
Nov 2023 Resolved
Revised Total Coliform Rule
Monitoring
Monitoring Resolved Nov 2023
Jul 2022 Resolved
Revised Total Coliform Rule
Monitoring
Monitoring Resolved Jul 2022
Jul 2021 Resolved
Revised Total Coliform Rule
Monitoring
Monitoring Resolved Jul 2021
Sep 2020 Resolved
Revised Total Coliform Rule
Monitoring
Monitoring Resolved Sep 2020
Apr 2020 Resolved
Revised Total Coliform Rule
Monitoring
Monitoring Resolved Apr 2020
Nov 2019 Resolved
Revised Total Coliform Rule
Monitoring
Monitoring Resolved Nov 2019
Showing 20 of 50 violations
Environmental Risk

Drought conditions

D2 — severe drought

Bollinger County is currently in D2 (severe drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.

4
Weeks at D2+ (current streak)
5.3%
Months in D2+ (last 30y)
9
Weeks at D2+ (last 5y)

Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.

Environmental Risk

Flood & disaster history

5
Declared disasters
Jun 2017
Most recent
Flood
Most common type

Bollinger County has experienced 5 federally declared disasters since 1982. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Jun 2017
SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS AND FLOODING
Flood FEMA #4317
Jan 2016
SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING
Flood FEMA #4250
Jan 2016
SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING
Flood FEMA #3374
Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3232
Dec 1982
SEVERE STORMS AND FLOODING
Flood FEMA #672

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.0 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 0.0 ppb from 1993 (0.0 ppb) to 2025 (0.0 ppb).
Contaminant Rankings

See how Marble Hill compares by contaminant

Explore where Marble Hill ranks among all Missouri cities for specific contaminants.

Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Local Government
Population Served
1,606
Water Systems
3
Water Source

Where Marble Hill's water comes from

Groundwater

Marble Hill's drinking water is drawn from underground aquifers through wells.

Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.

Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.

The system is operated by local government ownership and serves approximately 1,606 people through 3 water systems.

Infrastructure

Water systems serving Marble Hill

System Name PWSID Population Source
MARBLE HILL SOUTH PWS MO4010483 862 GW
MARBLE HILL NORTH PWS MO4010496 664 GW
DIANAS BOARDING HOME 2 MO4061392 80 GW
Regional Comparison

How Marble Hill compares

Full Missouri rankings →

Marble Hill's score of 80/100 is above the average of 62/100 among major Missouri cities. It outscores 8 of 10 nearby cities.

Marble Hill (this city)
80
St. Louis
40.9
Columbia
61.4
Missouri avg
62
City Profile

About Marble Hill, MO

Economic Profile
$29,615
Median Income
$89,993
Median Home Value
$765/mo
Median Rent
7.9%
Unemployment
Community
28.9
Median Age
433
People / sq mi
4.9%
College Educated
54.6%
Homeownership
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Frequently asked questions

Is Marble Hill, MO tap water safe to drink?

Marble Hill's water quality earned a grade of B+ (80/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #317 out of 509 cities tested in Missouri.

What contaminants are in Marble Hill's water?

Lead was measured at 0.0 ppb (90th percentile). 50 violations are on record.

How is Marble Hill's water quality grade calculated?

The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.

Do I need a water filter in Marble Hill?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Marble Hill's water come from?

Marble Hill's water is sourced from Groundwater. The city has 3 water systems serving approximately 1,606 residents.

What health violations has Marble Hill's water system had?

Marble Hill has 15 health-based violations on record. The most recent violation was recorded in July 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 14 violations remain unresolved.

Is Marble Hill's groundwater at risk of contamination?

Marble Hill uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 50 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.

How does Marble Hill's water compare to other cities?

Marble Hill ranks #317 out of 509 cities in Missouri (better than 38% of state cities) and #8062 out of 15744 cities nationally (49th percentile). The grade of B+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.