WaterVerge

Is Marshall, AR Tap Water Safe to Drink?

Graded D, with 22 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

6K residents served 4 water systems PWSID: AR0000501
Overall Score
46 / 100
Violations
22 active
Last Updated
May 2026
Source
Purchased surface water
#322 of 345 in Arkansas Top 89% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
DGRADE
Water Quality Grade
46/100
waterverge.com
D 46/100

Marshall, AR — Water Quality Report

Marshall's drinking water received a grade of D (46 out of 100), indicating poor water quality. The city's 4 water systems serve approximately 5,561 residents using purchased surface water.

Lead levels were measured at 5.0 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 307 violations on record, including 250 health-based violations. 22 remain unresolved.

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

What to know about Marshall's water

Marshall ranks #322 out of 345 cities in Arkansas for water quality, placing it among the lowest-rated in the state.

The city draws from surface water sources, which are more susceptible to seasonal runoff and agricultural contamination, requiring extensive multi-barrier treatment including coagulation, filtration, and disinfection.

The system has seen 13 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.

Quality Breakdown

Water quality score

See methodology →
46 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
17/20
B
Lead at 5.0 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
8/10
B
Monitoring and reporting compliance with EPA regulations.
Source Risk
4/5
B
Water source: Purchased surface water.
Water Safety

Is Marshall, AR water safe to drink?

Concerns Identified

Marshall's drinking water has significant quality concerns based on EPA testing data. With a grade of D (46/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 4 water systems serve approximately 5,561 residents using surface water (rivers, lakes, or reservoirs).

22
Active Violations
5.0 ppb
Lead (90th %ile)
6 events
Disaster History

Recent water quality updates for Marshall

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Marshall's water quality assessment. Grade: D (46/100).

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: Revised Total Coliform Rule.

Violation
1 drinking water violation recorded

Contaminants: Public Notice.

Violation
1 drinking water violation recorded

Contaminants: Public Notice.

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 Marshall's water supply.

Lead Within Limits
Detected: 5.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Marshall's water system has 307 total violations on record, including 250 health-based violations. 22 remain unresolved. 13 violations were issued in the last 5 years.

OtherMRTTMONMCLRPT
Most recent violations:
Oct 2022 Revised Total Coliform Rule Open
Mar 2022 Public Notice Open
Feb 2022 Public Notice Open
Jan 2022 Lead and Copper Rule Open
Dec 2021 Stage 1 Disinfectants and Disinfection Byproducts Rule Open

Flood & environmental risk

Searcy County has experienced 6 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. Local water sources include Buffalo River Near St. Joe, Bear Creek Near Silver Hill.

SEVERE STORMS, TORNADOES, AND FLOODING
Flood FEMA DR-4873
HURRICANE LAURA
Hurricane FEMA DR-3541
SEVERE STORMS AND FLOODING
Flood FEMA DR-4441

Where does Marshall's water come from?

Marshall's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 4 water systems serving approximately 5,561 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment. Nearby water bodies include Buffalo River Near St. Joe (river), Bear Creek Near Silver Hill (river).

What Marshall residents can do

Install a water filter

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

Marshall'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
5.0 ppb
EPA Action Level: 15 ppb · 33% of limit
Safe Level
Compliance Record

Violation summary

307
Total violations
250
Health-based
22
Active / unresolved
Oct 2022
Most recent violation
Compliance Record

Violations & advisories

307 Total
22 Active
250 Health-based
285 Resolved
Violations by category
Radionuclides and Revised Rad Rule
121
Inorganic Chemicals
108
Total Coliform Rule
35
Surface Water Treatment Rule
16
Revised Total Coliform Rule
7
Oct 2022 Active
Revised Total Coliform Rule
Other Violation 0
Mar 2022 Active
Public Notice
Other Violation 0
Feb 2022 Active
Public Notice
Other Violation 0
Jan 2022 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Dec 2021 Active
Stage 1 Disinfectants and Disinfection Byproducts Rule
Treatment Technique
Health-Based Health 0
Nov 2021 Active
Stage 1 Disinfectants and Disinfection Byproducts Rule
Treatment Technique
Health-Based Health 0
Oct 2021 Active
Stage 1 Disinfectants and Disinfection Byproducts Rule
Treatment Technique
Health-Based Health 0
Sep 2021 Active
Stage 1 Disinfectants and Disinfection Byproducts Rule
Treatment Technique
Health-Based Health 0
Jul 2021 Active
Consumer Confidence Rule
Other Violation 0
Aug 2020 Active
Stage 1 Disinfectants and Disinfection Byproducts Rule
Treatment Technique
Health-Based Health 0
Jul 2018 Active
Consumer Confidence Rule
Other Violation 0
Aug 2016 Active
Public Notice
Other Violation 0
May 2016 Active
Revised Total Coliform Rule
Reporting
Reporting 0
Apr 2016 Active
Revised Total Coliform Rule
Reporting
Reporting 0
Apr 2016 Active
Revised Total Coliform Rule
Reporting
Reporting 0
Jan 2010 Active
Consumer Confidence Rule
Other Violation 0
Jul 2005 Active
Consumer Confidence Rule
Other Violation 0
Feb 2002 Active
Stage 1 Disinfectants and Disinfection Byproducts Rule
Treatment Technique
Health-Based Health 0
Aug 1996 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Active
Compliance Violation
Monitoring 0
Showing 20 of 307 violations
Environmental Risk

Drought conditions

D4 — exceptional drought

Searcy County is currently in D4 (exceptional drought) per the U.S. Drought Monitor (week of May 5, 2026). 52.3% 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)
7.4%
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

6
Declared disasters
May 2025
Most recent
Flood
Most common type

Searcy County has experienced 6 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
Jun 2019
SEVERE STORMS AND FLOODING
Flood FEMA #4441
Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3215
Apr 1997
FLOODING, SEVERE STORMS
Flood FEMA #1176
Feb 1969
SEVERE STORMS & FLOODING
Flood FEMA #254

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 5.0 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 1.0 ppb from 1993 (2.0 ppb) to 2003 (1.0 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Purchased Surface Water
Operator
Local Government
Population Served
5,561
Water Systems
4
Water Source

Where Marshall's water comes from

Purchased Surface Water

Marshall's drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.

Surface water systems require multi-stage treatment including coagulation, sedimentation, filtration, and disinfection to meet EPA Safe Drinking Water Act standards.

These sources can be impacted by seasonal changes, stormwater runoff, upstream agriculture, and industrial discharge.

The system is operated by local government ownership and serves approximately 5,561 people through 4 water systems.

Local Hydrology

Water bodies near Marshall

Marshall is located near 2 notable water bodies. As a surface water system, these water bodies may directly influence the city's drinking water supply.

Buffalo River Near St. Joe
river
Bear Creek Near Silver Hill
river
Infrastructure

Water systems serving Marshall

System Name PWSID Population Source
MARSHALL WATERWORKS AR0000501 2,550 SWP
MORNING STAR PUBLIC WATER AUTHORITY AR0000681 1,543 SWP
SOUTH MOUNTAIN WATER ASSN AR0000815 948 SWP
SDM WATER ASSOCIATION AR0000758 520 SWP
Regional Comparison

How Marshall compares

Full Arkansas rankings →

Marshall's score of 46/100 is below the average of 75/100 among major Arkansas cities. It outscores 1 of 10 nearby cities. 9 of 10 nearby cities score higher.

Marshall (this city)
46
Springdale
79.1
Fort Smith
45.5
Arkansas avg
75
City Profile

About Marshall, AR

Wikipedia →

Marshall is the largest city in and the county seat of Searcy County in Arkansas, United States. As of the 2020 census, Marshall had a population of 1,329. It is located in the Ozarks at the foot of the Boston Mountain Range 10.5 mi (16.9 km) south of America's first National River, the Buffalo National River. Marshall serves as a hub for area tourism including camping, floating, hiking, bicycling and Dark Sky viewing.

Economic Profile
$28,290
Median Income
$99,452
Median Home Value
$539/mo
Median Rent
3.3%
Unemployment
Community
52.3
Median Age
131
People / sq mi
14.7%
College Educated
49.2%
Homeownership
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Frequently asked questions

Is Marshall, AR tap water safe to drink?

Marshall's water quality earned a grade of D (46/100). Significant issues have been found. A water filter is strongly recommended. The city ranks #322 out of 345 cities tested in Arkansas.

What contaminants are in Marshall's water?

Lead was measured at 5.0 ppb (90th percentile). 307 violations are on record.

How is Marshall'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 Marshall?

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

Where does Marshall's water come from?

Marshall's water is sourced from Purchased surface water. The city has 4 water systems serving approximately 5,561 residents.

What health violations has Marshall's water system had?

Marshall has 250 health-based violations on record. The most recent violation was recorded in October 2022. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 22 violations remain unresolved.

How does Marshall's water compare to other cities?

Marshall ranks #322 out of 345 cities in Arkansas (better than 7% of state cities) and #13948 out of 15744 cities nationally (11th percentile). The grade of D reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.