SAN LUIS CITY OF
PWSID: AZ0414005 · San Luis, AZ · Serves 39,705 people
According to EPA Safe Drinking Water Information System (SDWIS), SAN LUIS CITY OF (PWSID AZ0414005) in San Luis, AZ is listed as a CWS water system covering about 39,705 people. The same extract lists 4 health-based violation records spanning 2021-2024. Those 4 health-based rows for SAN LUIS CITY OF cover contaminants such as Groundwater Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
SAN LUIS CITY OF has 4 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. 1 distinct EPA contaminant code appears in this system's record, including Groundwater Rule. Recorded violations span 2021–2024. 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)
- AZ0414005
- System Type
- CWS
- Water Source
- Groundwater
- Location
- San Luis, AZ
- Population Served
- 39,705
- Health Violations
- Yes (4)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Groundwater Rule | 4 | 4 |
Violation History (4)
| Contaminant | Health | Date |
|---|---|---|
| Groundwater Rule | Yes | Jun 6, 2024 |
| Groundwater Rule | Yes | Jun 6, 2024 |
| Groundwater Rule | Yes | Aug 5, 2021 |
| Groundwater Rule | Yes | Aug 5, 2021 |
Frequently Asked Questions
What does EPA SDWIS list for SAN LUIS CITY OF?
How many people does SAN LUIS CITY OF serve?
What violations does SAN LUIS CITY OF have?
What contaminants have been found in SAN LUIS CITY OF water?
Compare beyond Arizona
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest SAN LUIS CITY OF on cumulative violation count (4) and EPA-reported population served (39,705). Violation-count peers include Santo Domingo Pueblo, Isleta Eastside, PARSHALL-LUCKY MOUND. Population peers include MOUNT DORA, CITY OF (2WPS), HUTCHINSON, CITY OF, EUSTIS, CITY OF (4 WTPS).
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
SAN LUIS CITY OF (AZ0414005) is drawn from EPA SDWIS. Nearby county systems in this extract include CITY OF YUMA; FOOTHILLS WATER AND SEWER LLC; SOMERTON CITY OF; ASPC YUMA. Health-based rows (4 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.