Public water system · AZ0402027
ActiveSan Simon Dwid
At a glance
San Simon Dwid (PWSID AZ0402027) is an active community water system in Cochise County, Arizona. It reports serving 312 people through 120 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 February 2026.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
312
Service connections
120
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does San Simon Dwid compare with other water systems in Cochise County?
By EPA's size categories, San Simon Dwid is a very small system (500 people or fewer). Cochise County has 104 active public water systems. Its population served is well below the county average of 1,253 people per system, and accounts for 0.2% of the 130,277 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 San Simon Dwid 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 San Simon Dwid?
EPA lists San Simon Dwid 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. 46 of the 104 active systems in Cochise County (44%) are also privately owned.
Does San Simon Dwid have drinking water violations?
Of the 12 most recent violations in EPA's records, 2 are health-based, and the most recent began in February 2026. The violations listed here began between July 2025 and February 2026. By type: 5 public notice, recordkeeping or other, 4 monitoring and reporting, 2 contaminant level above the legal limit and 1 monitoring. The contaminant or rule involved most often is Chlorine (4 of them). EPA lists 5 as archived, 4 as resolved and 3 as unaddressed. 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. 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 |
|---|---|---|---|---|
| 2026-02-05 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2026-01-28 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2026-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Archived |
| 2025-11-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Archived |
| 2025-10-02 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2025-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Fluoridecode 1025 | Yes | Archived |
| 2025-10-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Archived |
| 2025-09-01 | MonitoringMonitoring, Routine (RTCR) · code 3A | Revised Total Coliform Rulecode 8000 | No | Resolved |
| 2025-07-24 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2025-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2025-07-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Chlorinecode 0999 | No | Resolved |
| 2025-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Fluoridecode 1025 | Yes | Archived |
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.
San Simon Dwid: frequently asked questions
Who runs San Simon Dwid?
San Simon Dwid (PWSID AZ0402027) is a community water system privately owned. It is regulated by the AZ state drinking water program.
How many people does San Simon Dwid serve?
San Simon Dwid reports serving 312 people through 120 service connections in Cochise County, Arizona.
Where does San Simon Dwid 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 San Simon Dwid 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 February 2026. 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 San Simon Dwid'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 February 2026. For current results, consult the system's annual water quality report, EPA ECHO, or the AZ state drinking water program.
Where can I find San Simon Dwid's water quality report?
As a community water system, San Simon Dwid 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 Cochise County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Bella Vista City Water System | Cochise | 20,045 | Community | Groundwater |
| Douglas City of | Cochise | 16,656 | Community | Groundwater |
| Us Army Fort Huachuca | Cochise | 15,603 | Community | Groundwater |
| Pueblo Del Sol Water Company | Cochise | 12,804 | Community | Groundwater |
| Arizona Water Co - Sierra Vista | Cochise | 9,175 | Community | Groundwater |
| Arizona Water Co - Bisbee | Cochise | 8,707 | 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, “San Simon Dwid, PWSID AZ0402027, Arizona”, https://aquacensus.com/water-systems/arizona/san-simon-dwid-az0402027 (data as of October 1, 2026).