WaterVerge

Is Marked Tree, AR 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 ↓

3K residents served 1 water system PWSID: AR0000430
Overall Score
75.9 / 100
Violations
5 active
Last Updated
May 2026
Source
Groundwater
#250 of 345 in Arkansas Top 60% nationally
Local Government
High data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
BGRADE
Water Quality Grade
75.9/100
waterverge.com
B 75.9/100

Marked Tree, AR — Water Quality Report

Marked Tree's drinking water received a grade of B (75.9 out of 100), indicating good water quality. The city's 1 water system serves approximately 2,610 residents using groundwater.

Lead levels were measured at 9.0 ppb (90th percentile), which is within EPA limits but above recommended levels. This system has not yet been tested for PFAS under the EPA UCMR 5 program.

The system has 7 violations on record, including 1 health-based violation. 5 remain unresolved.

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

What to know about Marked Tree's water

Marked Tree ranks #250 out of 345 cities in Arkansas for water quality, placing it below average in the state.

Marked Tree 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.

While lead levels are within EPA limits, they are above the recommended 5 ppb threshold that health organizations consider ideal. A point-of-use filter adds an extra layer of protection.

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

Quality Breakdown

Water quality score

See methodology →
75.9 out of 100 Grade B
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
38.9/45
B
Historical violation record including health-based and monitoring violations.
Lead & Copper
15/20
B
Lead at 9.0 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 Marked Tree, AR water safe to drink?

Concerns Identified

Marked Tree's drinking water has significant quality concerns based on EPA testing data. With a grade of B (75.9/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 2,610 residents using groundwater (wells).

5
Active Violations
9.0 ppb
Lead (90th %ile)
8 events
Disaster History

Recent water quality updates for Marked Tree

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Marked Tree's water quality assessment. Grade: B (75.9/100).

Violation
1 drinking water violation recorded

Contaminants: Revised Total Coliform Rule.

Violation
1 drinking water violation recorded

Contaminants: Consumer Confidence Rule.

Disaster
SEVERE STORMS, TORNADOES, AND FLOODING

Federal disaster declaration (FEMA DR-4873). Flood event — may have impacted local water infrastructure.

Violation
1 drinking water violation recorded

Contaminants: Lead and Copper Rule.

Disaster
HURRICANE LAURA

Federal disaster declaration (FEMA DR-3541). Hurricane event — may have impacted local water infrastructure.

Key contaminant findings

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

Lead Elevated
Detected: 9.0 ppb Limit: 15 ppb (EPA Action Level)

Within EPA limits but above the American Academy of Pediatrics recommended level of 1 ppb. An NSF 53-certified filter provides additional protection.

Violation history

Marked Tree's water system has 7 total violations on record, including 1 health-based violation. 5 remain unresolved. 3 violations were issued in the last 5 years.

RPTOtherMRMONMCL
Most recent violations:
Oct 2025 Revised Total Coliform Rule Open
Jul 2025 Consumer Confidence Rule Open
Jul 2024 Lead and Copper Rule Open
Nov 2016 Revised Total Coliform Rule Resolved
Jul 2006 Consumer Confidence Rule Open

Flood & environmental risk

Poinsett County has experienced 8 federally declared disasters since 1969. 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, AND FLOODING
Flood FEMA DR-4873
HURRICANE LAURA
Hurricane FEMA DR-3541
HURRICANE KATRINA EVACUATION
Hurricane FEMA DR-3215

Where does Marked Tree's water come from?

Marked Tree's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 2,610 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.

What Marked Tree residents can do

Install a water filter

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

Flush your taps

Run cold water for 30 seconds before drinking, especially in the morning. Lead and copper leach from household plumbing when water sits in pipes.

Monitor alerts during storms

Marked Tree'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
9.0 ppb
EPA Action Level: 15 ppb · 60% of limit
Safe Level
Compliance Record

Violation summary

7
Total violations
1
Health-based
5
Active / unresolved
Oct 2025
Most recent violation
Compliance Record

Violations & advisories

7 Total
5 Active
1 Health-based
2 Resolved
Violations by category
Revised Total Coliform Rule
2
Consumer Confidence Rule
2
Lead and Copper Rule
1
Total Coliform Rule
1
Oct 2025 Active
Revised Total Coliform Rule
Reporting
Reporting 0
Jul 2025 Active
Consumer Confidence Rule
Other Violation 0
Jul 2024 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2006 Active
Consumer Confidence Rule
Other Violation 0
Active
Compliance Violation
Monitoring 0
Nov 2016 Resolved
Revised Total Coliform Rule
Monitoring
Monitoring Resolved Nov 2016
Jul 1994 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jul 1994
Industrial pollution

Top industrial polluters within 10 miles of Marked Tree

Industrial polluters nearby

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

FacilityTop chemicalTo surface water (lbs/yr)Distance
SNYDER INDUSTRIES
Plastics and Rubber · TANK HOLDING CORP
MARKED TREE, AR72365
0.8 mi

Source: EPA Toxic Release Inventory (TRI) 2023

Environmental Risk

Drought conditions

D4 — exceptional drought

Poinsett County is currently in D4 (exceptional drought) per the U.S. Drought Monitor (week of May 5, 2026). 39.5% of the county is in D4 (exceptional) drought. Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.

14
Weeks at D2+ (current streak)
15.4%
Months in D2+ (last 30y)
14
Weeks at D2+ (last 5y)

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

Environmental Risk

Flood & disaster history

8
Declared disasters
May 2025
Most recent
Flood
Most common type

Poinsett County has experienced 8 federally declared disasters since 1969. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

May 2025
SEVERE STORMS, TORNADOES, AND FLOODING
Flood FEMA #4873
Aug 2020
HURRICANE LAURA
Hurricane FEMA #3541
Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3215
Apr 1997
FLOODING, SEVERE STORMS
Flood FEMA #1176
Dec 1987
SEVERE STORMS & FLOODING
Flood FEMA #807
May 1973
SEVERE STORMS & FLOODING
Flood FEMA #389

Recommended water filters

Based on contaminants detected in Marked Tree's water supply, we recommend the following filter types.

🚰
For Lead
Reverse Osmosis or NSF 53-Certified Pitcher
Lead detected at 9.0 ppb
Read our guide →

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 9.0 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 increased by 4.0 ppb from 1993 (5.0 ppb) to 2003 (9.0 ppb).
Contaminant Rankings

See how Marked Tree compares by contaminant

Explore where Marked Tree ranks among all Arkansas cities for specific contaminants.

Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Local Government
Population Served
2,610
Water Systems
1
Water Source

Where Marked Tree's water comes from

Groundwater

Marked Tree'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 2,610 people through 1 water system.

Infrastructure

Water systems serving Marked Tree

System Name PWSID Population Source
MARKED TREE WATERWORKS AR0000430 2,610 GW
Regional Comparison

How Marked Tree compares

Full Arkansas rankings →

Marked Tree's score of 75.9/100 is on par with the average of 75/100 among major Arkansas cities. It outscores 4 of 10 nearby cities. 6 of 10 nearby cities score higher.

Marked Tree (this city)
75.9
Springdale
79.1
Fort Smith
45.5
Arkansas avg
75
City Profile

About Marked Tree, AR

Economic Profile
$35,087
Median Income
$62,217
Median Home Value
$573/mo
Median Rent
6.7%
Unemployment
Community
42.5
Median Age
155
People / sq mi
15.2%
College Educated
57.5%
Homeownership
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Frequently asked questions

Is Marked Tree, AR tap water safe to drink?

Marked Tree's water quality earned a grade of B (75.9/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #250 out of 345 cities tested in Arkansas.

What contaminants are in Marked Tree's water?

Lead was measured at 9.0 ppb (90th percentile). 7 violations are on record.

How is Marked Tree'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 Marked Tree?

While lead levels are within EPA limits, a filter adds extra protection. Based on current data, basic filtration should suffice for additional peace of mind.

Where does Marked Tree's water come from?

Marked Tree's water is sourced from Groundwater. The city has 1 water system serving approximately 2,610 residents.

What health violations has Marked Tree's water system had?

Marked Tree has 1 health-based violation on record. The most recent violation was recorded in October 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 5 violations remain unresolved.

Is Marked Tree's groundwater at risk of contamination?

Marked Tree 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 7 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 Marked Tree's water compare to other cities?

Marked Tree ranks #250 out of 345 cities in Arkansas (better than 28% of state cities) and #9447 out of 15744 cities nationally (40th percentile). The grade of B reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Marked Tree's small water system affect quality?

Marked Tree's system serves approximately 2,610 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 7 violations on record.