WaterVerge

Is Osage Beach, MO Tap Water Safe to Drink?

Graded D, with 80 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

9K residents served 18 water systems PWSID: MO3011367
Overall Score
47 / 100
Violations
80 active
Last Updated
May 2026
Source
Groundwater
#472 of 509 in Missouri Top 87% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
DGRADE
Water Quality Grade
47/100
waterverge.com
D 47/100

Osage Beach, MO — Water Quality Report

Osage Beach's drinking water received a grade of D (47 out of 100), indicating poor water quality. The city's 18 water systems serve approximately 8,555 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 233 violations on record, including 30 health-based violations. 80 remain unresolved.

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

What to know about Osage Beach's water

Osage Beach ranks #472 out of 509 cities in Missouri for water quality, placing it among the lowest-rated in the state.

Osage Beach 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.

The system has seen 42 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.

Quality Breakdown

Water quality score

See methodology →
47 out of 100 Grade D
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
0/45
F
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 Osage Beach, MO water safe to drink?

Concerns Identified

Osage Beach's drinking water has significant quality concerns based on EPA testing data. With a grade of D (47/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 18 water systems serve approximately 8,555 residents using groundwater (wells).

80
Active Violations
0.0 ppb
Lead (90th %ile)
5 events
Disaster History

Recent water quality updates for Osage Beach

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Osage Beach's water quality assessment. Grade: D (47/100).

Violation
3 drinking water violations recorded

Contaminants: Lead and Copper Rule, Groundwater Rule.

Violation
1 drinking water violation recorded

Contaminants: Revised Total Coliform Rule.

Violation
1 drinking water violation recorded

Contaminants: Lead and Copper 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 Osage Beach's water supply.

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

Well within EPA limits.

Violation history

Osage Beach's water system has 233 total violations on record, including 30 health-based violations. 80 remain unresolved. 42 violations were issued in the last 5 years.

MROtherMONRPTMCL
Most recent violations:
Dec 2025 Lead and Copper Rule Open
Dec 2025 Lead and Copper Rule Open
Dec 2025 Groundwater Rule Open
Oct 2025 Revised Total Coliform Rule Resolved
Sep 2025 Lead and Copper Rule Open

Flood & environmental risk

Camden County has experienced 5 federally declared disasters since 1993. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include Osage River Near Bagnell.

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 Osage Beach's water come from?

Osage Beach's drinking water comes from groundwater (wells), supplied by 18 water systems serving approximately 8,555 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Osage River Near Bagnell (river).

What Osage Beach residents can do

Install a water filter

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

Osage Beach'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

233
Total violations
30
Health-based
80
Active / unresolved
Dec 2025
Most recent violation
Compliance Record

Violations & advisories

233 Total
80 Active
30 Health-based
153 Resolved
Violations by category
Volatile Organic Chemicals
63
Total Coliform Rule
63
Consumer Confidence Rule
31
Lead and Copper Rule
16
Inorganic Chemicals
11
Dec 2025 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Dec 2025 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Dec 2025 Active
Groundwater Rule
Other Violation 0
Sep 2025 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2025 Active
Consumer Confidence Rule
Other Violation 0
Jul 2025 Active
Consumer Confidence Rule
Other Violation 0
Jul 2025 Active
Consumer Confidence Rule
Other Violation 0
Jul 2025 Active
Consumer Confidence Rule
Other Violation 0
Jul 2025 Active
Consumer Confidence Rule
Other Violation 0
Jul 2025 Active
Consumer Confidence Rule
Other Violation 0
Jan 2025 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Showing 20 of 233 violations
Industrial pollution

Top industrial polluters within 10 miles of Osage Beach

Industrial polluters nearby

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

FacilityTop chemicalTo surface water (lbs/yr)Distance
OZARK READY MIX - OSAGE BEACH
Nonmetallic Mineral Product · OZARK READY MIX CO INC
OSAGE BEACH, MO65065
2.3 mi

Source: EPA Toxic Release Inventory (TRI) 2023

Environmental Risk

Flood & disaster history

5
Declared disasters
Jun 2017
Most recent
Flood
Most common type

Camden County has experienced 5 federally declared disasters since 1993. 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
Jul 1993
SEVERE STORMS & FLOODING
Flood FEMA #995

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 14.7 ppb from 1994 (14.7 ppb) to 2025 (0.0 ppb).
Contaminant Rankings

See how Osage Beach compares by contaminant

Explore where Osage Beach ranks among all Missouri cities for specific contaminants.

Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Local Government
Population Served
8,555
Water Systems
18
Source breakdown
Groundwater
17
Purchased Groundwater
1
Water Source

Where Osage Beach's water comes from

Groundwater

Osage Beach'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 8,555 people through 18 water systems.

Local Hydrology

Water bodies near Osage Beach

Osage Beach is located near 1 notable water body. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.

Osage River Near Bagnell
river
Infrastructure

Water systems serving Osage Beach

System Name PWSID Population Source
OSAGE BEACH EAST PWS MO3011367 2,611 GW
OSAGE BEACH WEST PWS MO3011346 1,740 GW
SWEET PEA PWS MO3076376 980 GWP
KK WATER SUPPLY MO3036050 800 GW
THE KNOLLS MO3252255 725 GW
TIMBERLAKE MASTER ASSN INC MO3031365 300 GW
TUSCANY CONDOMINIUMS MO5301390 300 GW
TT SEWER MO3071339 250 GW
OSAGE HIGHLANDS MO3031089 200 GW
ECHO VALLEY SUBDIVISION MO3031267 175 GW
ST TROPEZ SUBDIVISION MO3031279 79 GW
PENINSULA SUBD MO3031349 75 GW
ROBYN POINT MO3030474 72 GW
SIOUX TRAILS MO3036216 72 GW
KAHALA ESTATES MO5031570 65 GW
OAKWOOD HILLS SUBDIVISION MO5031469 50 GW
OAK SHADOWS SUBDIVISION MO5031544 36 GW
LAKE OZARKS RV RESORT AND CAMPGROUND MO3243371 25 GW
Regional Comparison

How Osage Beach compares

Full Missouri rankings →

Osage Beach's score of 47/100 is below the average of 62/100 among major Missouri cities. It outscores 4 of 10 nearby cities. 6 of 10 nearby cities score higher.

Osage Beach (this city)
47
St. Louis
40.9
Columbia
61.4
Missouri avg
62
City Profile

About Osage Beach, MO

Economic Profile
$51,600
Median Income
$282,583
Median Home Value
$783/mo
Median Rent
10.6%
Unemployment
Community
48
Median Age
186
People / sq mi
22.3%
College Educated
64.1%
Homeownership
Share this reportHelp others learn about their water quality
WhatsAppXFacebookLinkedInEmail

Frequently asked questions

Is Osage Beach, MO tap water safe to drink?

Osage Beach's water quality earned a grade of D (47/100). Significant issues have been found. A water filter is strongly recommended. The city ranks #472 out of 509 cities tested in Missouri.

What contaminants are in Osage Beach's water?

Lead was measured at 0.0 ppb (90th percentile). 233 violations are on record.

How is Osage Beach'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 Osage Beach?

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

Where does Osage Beach's water come from?

Osage Beach's water is sourced from Groundwater. The city has 18 water systems serving approximately 8,555 residents.

What health violations has Osage Beach's water system had?

Osage Beach has 30 health-based violations on record. The most recent violation was recorded in December 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 80 violations remain unresolved.

Is Osage Beach's groundwater at risk of contamination?

Osage Beach 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 233 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 Osage Beach's water compare to other cities?

Osage Beach ranks #472 out of 509 cities in Missouri (better than 7% of state cities) and #13688 out of 15744 cities nationally (13th percentile). The grade of D reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.