WaterVerge

Is Arcadia, MO Tap Water Safe to Drink?

Graded A-, with 3 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

605 residents served 1 water system PWSID: MO4010023
Overall Score
85.6 / 100
Violations
3 active
Last Updated
May 2026
Source
Groundwater
#213 of 509 in Missouri Top 33% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
A-GRADE
Water Quality Grade
85.6/100
waterverge.com
A- 85.6/100

Arcadia, MO — Water Quality Report

Arcadia's drinking water received a grade of A- (85.6 out of 100), indicating good water quality. The city's 1 water system serves approximately 605 residents using groundwater.

Lead levels were measured at 2.6 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 8 violations on record, including 3 health-based violations. 3 remain unresolved.

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

What to know about Arcadia's water

Arcadia ranks #213 out of 509 cities in Missouri for water quality, placing it mid-range in the state.

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

Quality Breakdown

Water quality score

See methodology →
85.6 out of 100 Grade A-
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
38.6/45
B
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 2.6 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 Arcadia, MO water safe to drink?

Concerns Identified

Arcadia's drinking water has significant quality concerns based on EPA testing data. With a grade of A- (85.6/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 605 residents using groundwater (wells).

3
Active Violations
2.6 ppb
Lead (90th %ile)
5 events
Disaster History

Recent water quality updates for Arcadia

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Arcadia's water quality assessment. Grade: A- (85.6/100).

Violation
1 drinking water violation recorded

Contaminants: Public Notice.

Violation
1 drinking water violation recorded

1 health-based. Contaminants: Stage 1 Disinfectants and Disinfection Byproducts Rule.

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 Arcadia's water supply.

Lead Within Limits
Detected: 2.6 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Arcadia's water system has 8 total violations on record, including 3 health-based violations. 3 remain unresolved. 2 violations were issued in the last 5 years.

OtherTTMONMRMCL
Most recent violations:
Jun 2023 Public Notice Open
May 2023 Stage 1 Disinfectants and Disinfection Byproducts Rule Open
Nov 2020 Revised Total Coliform Rule Resolved
Nov 2015 Coliform (TCR) Resolved
Nov 1999 Coliform (TCR) Resolved

Flood & environmental risk

Iron 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. Local water sources include St. Francis River Near Roselle.

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 Arcadia's water come from?

Arcadia's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 605 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include St. Francis River Near Roselle (river).

What Arcadia residents can do

Install a water filter

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

Arcadia'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
2.6 ppb
EPA Action Level: 15 ppb · 17% of limit
Safe Level
Compliance Record

Violation summary

8
Total violations
3
Health-based
3
Active / unresolved
Jun 2023
Most recent violation
Compliance Record

Violations & advisories

8 Total
3 Active
3 Health-based
5 Resolved
Violations by category
Total Coliform Rule
4
Public Notice Rule and Revised PN Rule
1
Stage 1 Disinfectants and Disinfection Byproducts Rule
1
Revised Total Coliform Rule
1
Jun 2023 Active
Public Notice
Other Violation 0
May 2023 Active
Stage 1 Disinfectants and Disinfection Byproducts Rule
Treatment Technique
Health-Based Health 0
Active
Compliance Violation
Monitoring 0
Nov 2020 Resolved
Revised Total Coliform Rule
Monitoring
Monitoring Resolved Nov 2020
Nov 2015 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Nov 2015
Nov 1999 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Nov 1999
Nov 1999 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Nov 1999
May 1999 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved May 1999
Environmental Risk

Drought conditions

D1 — moderate drought

Iron County is currently in D1 (moderate 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.

6.2%
Months in D2+ (last 30y)
5
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

Iron 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) 2.6 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 2.4 ppb from 1993 (5.0 ppb) to 2025 (2.6 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Local Government
Population Served
605
Water Systems
1
Water Source

Where Arcadia's water comes from

Groundwater

Arcadia'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 605 people through 1 water system.

Local Hydrology

Water bodies near Arcadia

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

St. Francis River Near Roselle
river
Infrastructure

Water systems serving Arcadia

System Name PWSID Population Source
ARCADIA PWS MO4010023 605 GW
Regional Comparison

How Arcadia compares

Full Missouri rankings →

Arcadia's score of 85.6/100 is above the average of 62/100 among major Missouri cities. It outscores 9 of 10 nearby cities.

Arcadia (this city)
85.6
St. Louis
40.9
Columbia
61.4
Missouri avg
62
City Profile

About Arcadia, MO

Economic Profile
$44,167
Median Income
$139,322
Median Home Value
$323/mo
Median Rent
2.1%
Unemployment
Community
46.9
Median Age
278
People / sq mi
19.7%
College Educated
73%
Homeownership
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Frequently asked questions

Is Arcadia, MO tap water safe to drink?

Arcadia's water quality earned a grade of A- (85.6/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #213 out of 509 cities tested in Missouri.

What contaminants are in Arcadia's water?

Lead was measured at 2.6 ppb (90th percentile). 8 violations are on record.

How is Arcadia'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 Arcadia?

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

Where does Arcadia's water come from?

Arcadia's water is sourced from Groundwater. The city has 1 water system serving approximately 605 residents.

What health violations has Arcadia's water system had?

Arcadia has 3 health-based violations on record. The most recent violation was recorded in June 2023. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 3 violations remain unresolved.

Is Arcadia's groundwater at risk of contamination?

Arcadia 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 8 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 Arcadia's water compare to other cities?

Arcadia ranks #213 out of 509 cities in Missouri (better than 58% of state cities) and #5245 out of 15744 cities nationally (67th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Arcadia's small water system affect quality?

Arcadia's system serves approximately 605 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 8 violations on record.