Public water system · AZ0415029
ActiveCs Harrisburg Utility Company
At a glance
Cs Harrisburg Utility Company (PWSID AZ0415029) is an active community water system in La Paz County, Arizona. It reports serving 1,759 people through 687 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in August 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
1,759
Service connections
687
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Cs Harrisburg Utility Company compare with other water systems in La Paz County?
By EPA's size categories, Cs Harrisburg Utility Company is a small system (501 to 3,300 people). La Paz County has 84 active public water systems, and Cs Harrisburg Utility Company is the 4th-largest of them by population served. Its population served is about 4.8 times the county average of 365 people per system, and accounts for 5.7% of the 30,640 people reported by systems filed under the county. Across Arizona, the 1,769 active systems average 4,369 people each. Nationally, the average active community water system reports serving 6,703 people, so Cs Harrisburg Utility Company 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. Arizona has 936 active community water systems, 53% of the state's 1,769 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,612 Arizona systems (91%) list groundwater as their primary source.
Who owns and regulates Cs Harrisburg Utility Company?
EPA lists Cs Harrisburg Utility Company as privately owned. The AZ state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 40 of the 84 active systems in La Paz County (48%) are also privately owned.
Does Cs Harrisburg Utility Company have drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in August 2025. The violations listed here began between October 2013 and August 2025. By type: 6 monitoring and reporting, 2 required treatment not met, 2 public notice, recordkeeping or other, 1 reporting and 1 monitoring. The contaminant or rule involved most often is Groundwater Rule (2 of them). EPA lists 10 as resolved and 2 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-08-09 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Unaddressed |
| 2025-08-09 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Unaddressed |
| 2024-11-08 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2023-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2023-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2023-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2022-03-01 | ReportingReport Sample Result/Fail Monitor (RTCR) · code 4B | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2016-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2016-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2016-09-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2014-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2013-10-01 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | 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.
Cs Harrisburg Utility Company: frequently asked questions
Who runs Cs Harrisburg Utility Company?
Cs Harrisburg Utility Company (PWSID AZ0415029) is a community water system privately owned. It is regulated by the AZ state drinking water program.
How many people does Cs Harrisburg Utility Company serve?
Cs Harrisburg Utility Company reports serving 1,759 people through 687 service connections in La Paz County, Arizona.
Where does Cs Harrisburg Utility Company get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Cs Harrisburg Utility Company have any drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in August 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 Cs Harrisburg Utility Company'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, 2 are health-based, and the most recent began in August 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the AZ state drinking water program.
Where can I find Cs Harrisburg Utility Company's water quality report?
As a community water system, Cs Harrisburg Utility Company 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 La Paz County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Quartzsite Town of | La Paz | 2,761 | Community | Groundwater |
| Blm Laposa Ltva | La Paz | 2,500 | Transient non-community | Groundwater |
| Epcor - Lakeside | La Paz | 1,775 | Community | Surface water |
| Epcor - Moovalya Keys | La Paz | 1,298 | Community | Surface water |
| Cs Q Mountain Water Company | La Paz | 1,224 | Community | Groundwater |
| Adot Bouse Wash Rest Area | La Paz | 1,026 | Transient non-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, “Cs Harrisburg Utility Company, PWSID AZ0415029, Arizona”, https://aquacensus.com/water-systems/arizona/cs-harrisburg-utility-company-az0415029 (data as of October 1, 2026).