Public water system · AR0000660

Active

Casa Water Dept

At a glance

Casa Water Dept (PWSID AR0000660) is an active community water system serving Perry, Conway and Yell counties, Arkansas. It reports serving 1,500 people through 529 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, 7 are health-based, and the most recent began in October 2025.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

1,500

Service connections

529

Primary source

SWP

Purchased surface water

System type

CWS

Community water system

System record

PWSIDAR0000660

System typeCommunity water system

Activity statusActive

Population served1,500

Service connections529

Primary water sourcePurchased surface water

Owner typeLocal government

Primacy agencyAR state drinking water program

City served—

StateArkansas

ZIP—

Counties servedPerry, Conway, Yell

How does Casa Water Dept compare with other water systems in Arkansas?

By EPA's size categories, Casa Water Dept is a small system (501 to 3,300 people). Across Arkansas, the 853 active systems average 3,592 people each. Nationally, the average active community water system reports serving 6,703 people, so Casa Water Dept is well below that figure.

What does “community water system” mean?

A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Arkansas has 660 active community water systems, 77% of the state's 853 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 237 Arkansas systems (28%) list purchased surface water as their primary source.

Who owns and regulates Casa Water Dept?

EPA lists Casa Water Dept as owned by a local government. The AR state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act.

Does Casa Water Dept have drinking water violations?

Of the 12 most recent violations in EPA's records, 7 are health-based, and the most recent began in October 2025. The violations listed here began between December 2019 and October 2025. By type: 7 contaminant level above the legal limit, 3 public notice, recordkeeping or other, 1 monitoring and 1 monitoring and reporting. The contaminant or rule involved most often is Total trihalomethanes (TTHM) (7 of them). EPA lists 7 as archived and 5 as resolved. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.

Began	Violation	Contaminant or rule	Health-based	Status
2025-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Total trihalomethanes (TTHM)code 2950	Yes	Archived
2025-07-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Total trihalomethanes (TTHM)code 2950	Yes	Archived
2025-07-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Total trihalomethanes (TTHM)code 2950	Yes	Archived
2025-06-01	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2025-04-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Total trihalomethanes (TTHM)code 2950	Yes	Archived
2025-04-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Total trihalomethanes (TTHM)code 2950	Yes	Archived
2025-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Total trihalomethanes (TTHM)code 2950	Yes	Archived
2025-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Total trihalomethanes (TTHM)code 2950	Yes	Archived
2023-11-01	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2022-07-01	Monitoring and reportingLead Consumer Notice · code 66	Lead and Copper Rulecode 5000	No	Resolved
2021-07-01	Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71	Consumer Confidence Rulecode 7000	No	Resolved
2019-12-01	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved

The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.

Casa Water Dept: frequently asked questions

Who runs Casa Water Dept?

Casa Water Dept (PWSID AR0000660) is a community water system owned by a local government. It is regulated by the AR state drinking water program.

How many people does Casa Water Dept serve?

Casa Water Dept reports serving 1,500 people through 529 service connections in Perry, Conway and Yell counties, Arkansas.

Where does Casa Water Dept get its water?

EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.

Does Casa Water Dept have any drinking water violations?

Of the 12 most recent violations in EPA's records, 7 are health-based, and the most recent began in October 2025. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.

Is Casa Water Dept's water safe to drink?

AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, 7 are health-based, and the most recent began in October 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the AR state drinking water program.

Where can I find Casa Water Dept's water quality report?

As a community water system, Casa Water Dept must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.

Other water systems in Perry County(the first county EPA lists for this system)

Water system	County	Population served	Type	Source
Toad Suck Public Facility Bd	Perry	1,340	Community	Purchased surface water
Perry Water System	Perry	736	Community	Purchased surface water
Houston Waterworks	Perry	650	Community	Purchased surface water
Bigelow Waterworks	Perry	605	Community	Groundwater

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About this data

Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.

Cite as: AquaCensus, “Casa Water Dept, PWSID AR0000660, Arkansas”, https://aquacensus.com/water-systems/arkansas/casa-water-dept-ar0000660 (data as of October 1, 2026).