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Community Water System · PWS AR0000758

Sdm Water Association

Marshall, Arkansas 72650 - drinking water served from surface water sources to 520 people, tracked in EPA SDWIS and UCMR5.

520
People served
624
EPA violations
592
Health-based
Untested
UCMR5 result

The verdict

EPA records 624 drinking-water violations at Sdm Water Association, 95% of them health-based - above the Arkansas per-system average.

624
Total EPA violations on record
95%
Health-based (MCL / treatment failure)
520
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Sdm Water Association

Sdm Water Association is a local-owned community water system that delivers drinking water to 520 residents in Marshall, Arkansas (Searcy County) through 212 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 624 total violations for this system , of which 592 (95%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 11 monitoring and reporting violations are on file. The most recent violation on record dates to 2018.

The most frequently cited contaminant at this system is Fluoride, recorded in 301 violations (MCL, health-based). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Arkansas, EPA tracks 1,016 public water systems serving 3,049,400 people, with 53,437 cumulative violations and 21,598 health-based violations on record. About 94% of systems in the state carry at least one violation, and state-wide the average per system is 52.6 violations. Statewide, 57 of 172 UCMR5-tested systems have reported PFAS detections (33.1%).

Sdm Water Association's 624 violations sit above the Arkansas average.

All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
520
Total Violations
624
Health-Based Violations
592
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
212
County
Searcy
School/Daycare
No
MCL Violations
592
Monitoring Violations
11
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Fluoride MCL 301 2013
Combined Radium (-226 and -228) MCL 287 2013
Coliform (TCR) MR 11 2015
Consumer Confidence Rule Other 5 2018
Fluoride Other 5 1999
Combined Radium (-226 and -228) Other 5 1999
Coliform (TCR) MCL 4 2007
Coliform (TCR) Other 1 1993
Public Notice Other 1 2016

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records, or to file a complaint, request a Consumer Confidence Report, or check current monitoring status, go directly to the federal and state regulators that enforce the Safe Drinking Water Act for Sdm Water Association.

Federal Source of Truth

EPA SDWIS, Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID AR0000758 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Arkansas Drinking Water Authority

Arkansas's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find AR regulator via EPA SDWIS

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2018 Consumer Confidence Rule Other 5 SDWIS / AR0000758 / 7000
2016 Public Notice Other 1 SDWIS / AR0000758 / 7500
2015 Coliform (TCR) MR 11 SDWIS / AR0000758 / 3100
2013 Fluoride MCL 301 SDWIS / AR0000758 / 1025
2013 Combined Radium (-226 and -228) MCL 287 SDWIS / AR0000758 / 4010
2007 Coliform (TCR) MCL 4 SDWIS / AR0000758 / 3100
1999 Fluoride Other 5 SDWIS / AR0000758 / 1025
1999 Combined Radium (-226 and -228) Other 5 SDWIS / AR0000758 / 4010
1993 Coliform (TCR) Other 1 SDWIS / AR0000758 / 3100

How Sdm Water Association Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric Sdm Water Association Arkansas avg Federal benchmark
Total violations 624 52.6 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 592 21.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 33.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 520 3,001 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,016 regulated public water systems in Arkansas.

Federal MCL reference, Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Sdm Water Association water safe to drink? ▼
Sdm Water Association (PWS ID: AR0000758) has 624 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 520 people using Surface Water sources.
How many people does Sdm Water Association serve? ▼
Sdm Water Association serves 520 people in Marshall, Arkansas. It is a Local-owned system using Surface Water water sources with 212 service connections.
What type of violations does Sdm Water Association have? ▼
Sdm Water Association has 624 total violations: 592 health-based violations (MCL exceedances or treatment failures), 11 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Sdm Water Association water? ▼
No PFAS testing data is available for Sdm Water Association under the EPA's UCMR5 monitoring program.
What water source does Sdm Water Association use? ▼
Sdm Water Association uses Surface Water as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.