NOGALES CITY OF
PWSID: AZ0412004 · Nogales, AZ · Serves 22,000 people
According to EPA Safe Drinking Water Information System (SDWIS), NOGALES CITY OF (PWSID AZ0412004) in Nogales, AZ is listed as a CWS water system covering about 22,000 people. The same extract lists 5 health-based violation records spanning 2012-2024. Those 5 health-based rows for NOGALES CITY OF cover contaminants such as Groundwater Rule, LEAD AND COPPER RULE REVISIONS, Revised Total Coliform Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
NOGALES CITY OF has 5 health-based violation records in this historical extract. Monitoring and reporting records are not included.
PlainEnviro's health-based SDWIS extract covers monitoring and reporting violations only -- it does not include unresolved enforcement actions in progress or corrective steps a utility has taken since the extract date. 4 distinct EPA contaminant codes appear in this system's record, including Groundwater Rule, LEAD AND COPPER RULE REVISIONS, Revised Total Coliform Rule. Recorded violations span 2012–2024. Day-to-day primacy enforcement for this system runs through the Arizona drinking-water program, not EPA directly.
A historical health-based record does not necessarily describe current water quality or compliance. The most authoritative current source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the Arizona state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- AZ0412004
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Nogales, AZ
- Population Served
- 22,000
- Health Violations
- Yes (5)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Groundwater Rule | 2 | 2 |
| LEAD AND COPPER RULE REVISIONS | 1 | 1 |
| Revised Total Coliform Rule | 1 | 1 |
| Asbestos | 1 | 1 |
Violation History (5)
| Contaminant | Health | Date |
|---|---|---|
| LEAD AND COPPER RULE REVISIONS | Yes | Oct 17, 2024 |
| Groundwater Rule | Yes | Nov 15, 2021 |
| Groundwater Rule | Yes | Nov 15, 2021 |
| Revised Total Coliform Rule | Yes | Nov 11, 2016 |
| Asbestos | Yes | Jan 1, 2012 |
Frequently Asked Questions
What does EPA SDWIS list for NOGALES CITY OF?
How many people does NOGALES CITY OF serve?
What violations does NOGALES CITY OF have?
What contaminants have been found in NOGALES CITY OF water?
Compare beyond Arizona
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest NOGALES CITY OF on cumulative violation count (5) and EPA-reported population served (22,000). Violation-count peers include Jemez Pueblo, Acoma Main, OMAHA TRIBE PWS. Population peers include CHERRY CREEK VALLEY WSD, N.A.S. JACKSONVILLE, USAF-ROBINS AB MAIN.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Similar population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ gate).
Nearby Water Systems
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About This Data
NOGALES CITY OF (AZ0412004) is drawn from EPA SDWIS. Nearby county systems in this extract include PATAGONIA WATER DEPARTMENT; THE GRAND ACRES; KINO RANCH 2; AVALON GARDENS WATER SYSTEM. Health-based rows (5 MCL/TT) are historical registry state, not a current drinkability score.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.