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Community Water System · PWS AR0000759

Grange-Calamine Water Assoc

Cave City, Arkansas 72521 - drinking water served from groundwater sources to 3,015 people, tracked in EPA SDWIS and UCMR5.

3,015
People served
36
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 36 drinking-water violations at Grange-Calamine Water Assoc - below the Arkansas per-system average.

36
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
3,015
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Grange-Calamine Water Assoc

Grange-Calamine Water Assoc is a local-owned community water system that delivers drinking water to 3,015 residents in Cave City, Arkansas (Independence County) through 1,206 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 36 total violations for this system , of which 0 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 18 monitoring and reporting violations are on file. The most recent violation on record dates to 2021.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 13 violations (MR). 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%).

Grange-Calamine Water Assoc's 36 violations sit below 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
3,015
Total Violations
36
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
1,206
County
Independence
School/Daycare
No
MCL Violations
0
Monitoring Violations
18
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 13 2015
Consumer Confidence Rule Other 7 2021
Chlorine MR 4 2004
Revised Total Coliform Rule RPT 4 2020
Lead and Copper Rule MR 1 2020
Public Notice Other 1 2017

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 Grange-Calamine Water Assoc.

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 AR0000759 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
2021 Consumer Confidence Rule Other 7 SDWIS / AR0000759 / 7000
2020 Revised Total Coliform Rule RPT 4 SDWIS / AR0000759 / 8000
2020 Lead and Copper Rule MR 1 SDWIS / AR0000759 / 5000
2017 Public Notice Other 1 SDWIS / AR0000759 / 7500
2015 Coliform (TCR) MR 13 SDWIS / AR0000759 / 3100
2004 Chlorine MR 4 SDWIS / AR0000759 / 0999

How Grange-Calamine Water Assoc Compares

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

Metric Grange-Calamine Water Assoc Arkansas avg Federal benchmark
Total violations 36 52.6 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 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 3,015 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 Grange-Calamine Water Assoc water safe to drink? ▼
Grange-Calamine Water Assoc (PWS ID: AR0000759) has 36 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 3,015 people using Groundwater sources.
How many people does Grange-Calamine Water Assoc serve? ▼
Grange-Calamine Water Assoc serves 3,015 people in Cave City, Arkansas. It is a Local-owned system using Groundwater water sources with 1,206 service connections.
What type of violations does Grange-Calamine Water Assoc have? ▼
Grange-Calamine Water Assoc has 36 total violations: 0 health-based violations (MCL exceedances or treatment failures), 18 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Grange-Calamine Water Assoc water? ▼
No PFAS testing data is available for Grange-Calamine Water Assoc under the EPA's UCMR5 monitoring program.
What water source does Grange-Calamine Water Assoc use? ▼
Grange-Calamine Water Assoc 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.