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Community Water System · PWS AR0000377

Joiner Rural Water

Joiner, Arkansas 72350 - drinking water served from groundwater sources to 343 people, tracked in EPA SDWIS and UCMR5.

343
People served
113
EPA violations
50
Health-based
Untested
UCMR5 result

The verdict

EPA records 113 drinking-water violations at Joiner Rural Water, 44% of them health-based - above the Arkansas per-system average.

113
Total EPA violations on record
44%
Health-based (MCL / treatment failure)
343
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Joiner Rural Water

Joiner Rural Water is a local-owned community water system that delivers drinking water to 343 residents in Joiner, Arkansas (Mississippi County) through 137 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 113 total violations for this system , of which 50 (44%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 15 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Stage 1 Disinfectants and Disinfection Byproducts Rule, recorded in 48 violations (TT, 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%).

Joiner Rural Water's 113 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
343
Total Violations
113
Health-Based Violations
50
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
137
County
Mississippi
School/Daycare
No
MCL Violations
2
Monitoring Violations
15
Treatment Tech Violations
48

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Stage 1 Disinfectants and Disinfection Byproducts Rule TT 48 2021
Revised Total Coliform Rule RPT 27 2024
Public Notice Other 12 2021
Revised Total Coliform Rule MON 10 2024
Lead and Copper Rule MR 5 2024
Consumer Confidence Rule Other 4 2021
Coliform (TCR) MCL 2 1994
Coliform (TCR) Other 1 1994

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 Joiner Rural Water.

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 AR0000377 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
2024 Revised Total Coliform Rule RPT 27 SDWIS / AR0000377 / 8000
2024 Revised Total Coliform Rule MON 10 SDWIS / AR0000377 / 8000
2024 Lead and Copper Rule MR 5 SDWIS / AR0000377 / 5000
2021 Stage 1 Disinfectants and Disinfection Byproducts Rule TT 48 SDWIS / AR0000377 / 0400
2021 Public Notice Other 12 SDWIS / AR0000377 / 7500
2021 Consumer Confidence Rule Other 4 SDWIS / AR0000377 / 7000
1994 Coliform (TCR) MCL 2 SDWIS / AR0000377 / 3100
1994 Coliform (TCR) Other 1 SDWIS / AR0000377 / 3100

How Joiner Rural Water Compares

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

Metric Joiner Rural Water Arkansas avg Federal benchmark
Total violations 113 52.6 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 50 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 343 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 Joiner Rural Water water safe to drink? ▼
Joiner Rural Water (PWS ID: AR0000377) has 113 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 343 people using Groundwater sources.
How many people does Joiner Rural Water serve? ▼
Joiner Rural Water serves 343 people in Joiner, Arkansas. It is a Local-owned system using Groundwater water sources with 137 service connections.
What type of violations does Joiner Rural Water have? ▼
Joiner Rural Water has 113 total violations: 50 health-based violations (MCL exceedances or treatment failures), 15 monitoring/reporting violations, and 48 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Joiner Rural Water water? ▼
No PFAS testing data is available for Joiner Rural Water under the EPA's UCMR5 monitoring program.
What water source does Joiner Rural Water use? ▼
Joiner Rural Water uses Groundwater 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.