WaterVerge

Is Innsbrook, MO Tap Water Safe to Drink?

Graded B+, with 5 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

810 residents served 1 water system PWSID: MO6036142
Overall Score
84.2 / 100
Violations
5 active
Last Updated
May 2026
Source
Groundwater
#251 of 509 in Missouri Top 39% nationally
Private
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
B+GRADE
Water Quality Grade
84.2/100
waterverge.com
B+ 84.2/100

Innsbrook, MO — Water Quality Report

Innsbrook's drinking water received a grade of B+ (84.2 out of 100), indicating good water quality. The city's 1 water system serves approximately 810 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 6 violations on record, including 0 health-based violations. 5 remain unresolved.

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

What to know about Innsbrook's water

Innsbrook ranks #251 out of 509 cities in Missouri for water quality, placing it mid-range in the state.

Innsbrook 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, Innsbrook may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

Quality Breakdown

Water quality score

See methodology →
84.2 out of 100 Grade B+
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
42.2/45
A
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
0/10
F
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Innsbrook, MO water safe to drink?

Concerns Identified

Innsbrook's drinking water has significant quality concerns based on EPA testing data. With a grade of B+ (84.2/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 810 residents using groundwater (wells).

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

Recent water quality updates for Innsbrook

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Innsbrook's water quality assessment. Grade: B+ (84.2/100).

Violation
1 drinking water violation recorded

Contaminants: Consumer Confidence Rule.

Violation
1 drinking water violation recorded

Contaminants: Consumer Confidence Rule.

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

Federal disaster declaration (FEMA DR-3374). Flood event — may have impacted local water infrastructure.

Violation
1 drinking water violation recorded

Contaminants: Consumer Confidence Rule.

Disaster
FLOODING

Federal disaster declaration (FEMA DR-3325). Flood event — may have impacted local water infrastructure.

Key contaminant findings

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

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

Well within EPA limits.

Violation history

Innsbrook's water system has 6 total violations on record, including 0 health-based violations. 5 remain unresolved. 1 violation was issued in the last 5 years.

OtherMR
Most recent violations:
Jul 2025 Consumer Confidence Rule Open
Jul 2019 Consumer Confidence Rule Open
Jul 2013 Consumer Confidence Rule Open
Jul 2012 Consumer Confidence Rule Open
Jun 2011 Coliform (TCR) Resolved

Flood & environmental risk

Warren County has experienced 6 federally declared disasters since 1986. 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-3374
FLOODING
Flood FEMA DR-3325
HURRICANE KATRINA EVACUATION
Hurricane FEMA DR-3232

Where does Innsbrook's water come from?

Innsbrook's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 810 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.

What Innsbrook residents can do

Install a water filter

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

Innsbrook'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

6
Total violations
0
Health-based
5
Active / unresolved
Jul 2025
Most recent violation
Compliance Record

Violations & advisories

6 Total
5 Active
0 Health-based
1 Resolved
Violations by category
Consumer Confidence Rule
4
Total Coliform Rule
1
Jul 2025 Active
Consumer Confidence Rule
Other Violation 0
Jul 2019 Active
Consumer Confidence Rule
Other Violation 0
Jul 2013 Active
Consumer Confidence Rule
Other Violation 0
Jul 2012 Active
Consumer Confidence Rule
Other Violation 0
Active
Compliance Violation
Monitoring 0
Jun 2011 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 2011
Industrial pollution

Top industrial polluters within 10 miles of Innsbrook

Industrial polluters nearby

Reported releases to surface water by facilities near Innsbrook, ranked by pounds discharged annually.

FacilityTop chemicalTo surface water (lbs/yr)Distance
WARCO INC.
Electrical Equipment · NA
MARTHASVILLE, MO63357
8.8 mi
SAF-HOLLAND INC
Transportation Equipment · SAF-HOLLAND INC
WARRENTON, MO63383
6.3 mi
UNIVERSAL GALVANIZING INC
Fabricated Metals · NA
WRIGHT CITY, MO63390
5.0 mi

Source: EPA Toxic Release Inventory (TRI) 2023

Environmental Risk

Flood & disaster history

6
Declared disasters
Jan 2016
Most recent
Flood
Most common type

Warren County has experienced 6 federally declared disasters since 1986. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Jan 2016
SEVERE STORMS, TORNADOES, STRAIGHT-LINE WINDS, AND FLOODING
Flood FEMA #3374
Jun 2011
FLOODING
Flood FEMA #3325
Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3232
May 2000
SEVERE THUNDERSTORMS AND FLASH FLOODING
Flood FEMA #1328
Jul 1993
SEVERE STORMS & FLOODING
Flood FEMA #995
Oct 1986
SEVERE STORMS & FLOODING
Flood FEMA #779

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).
Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Private
Population Served
810
Water Systems
1
Water Source

Where Innsbrook's water comes from

Groundwater

Innsbrook'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 private ownership and serves approximately 810 people through 1 water system.

Infrastructure

Water systems serving Innsbrook

System Name PWSID Population Source
INNSBROOK MO6036142 810 GW
Regional Comparison

How Innsbrook compares

Full Missouri rankings →

Innsbrook's score of 84.2/100 is above the average of 62/100 among major Missouri cities. It outscores 9 of 10 nearby cities.

Innsbrook (this city)
84.2
St. Louis
40.9
Columbia
61.4
Missouri avg
62
City Profile

About Innsbrook, MO

Wikipedia →

Innsbrook is a village in Warren County, Missouri, United States. As of the 2020 census, Innsbrook had a population of 596. The village of Innsbrook is comprised almost entirely by Innsbrook Resort—a private, gated community. The village was founded in 1998.

Economic Profile
$145,156
Median Income
$462,339
Median Home Value
9.4%
Unemployment
Community
55.1
Median Age
34
People / sq mi
63.6%
College Educated
98.2%
Homeownership
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Frequently asked questions

Is Innsbrook, MO tap water safe to drink?

Innsbrook's water quality earned a grade of B+ (84.2/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #251 out of 509 cities tested in Missouri.

What contaminants are in Innsbrook's water?

Lead was measured at 0.0 ppb (90th percentile). 6 violations are on record.

How is Innsbrook'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 Innsbrook?

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

Where does Innsbrook's water come from?

Innsbrook's water is sourced from Groundwater. The city has 1 water system serving approximately 810 residents.

Is Innsbrook's groundwater at risk of contamination?

Innsbrook 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 6 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 Innsbrook's water compare to other cities?

Innsbrook ranks #251 out of 509 cities in Missouri (better than 51% of state cities) and #6062 out of 15744 cities nationally (62th percentile). The grade of B+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Innsbrook's small water system affect quality?

Innsbrook's system serves approximately 810 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 6 violations on record.