ADOC TUCSON
PWSID: AZ0420557 · Tucson, AZ · Serves 4,500 people
According to EPA Safe Drinking Water Information System (SDWIS), ADOC TUCSON (PWSID AZ0420557) in Tucson, AZ is listed as a CWS water system covering about 4,500 people. The same extract lists 1 health-based violation record spanning 2025-2025. Those 1 health-based row for ADOC TUCSON cover contaminants such as Groundwater Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
ADOC TUCSON has 1 health-based violation record 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 2025–2025. 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)
- AZ0420557
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Tucson, AZ
- Population Served
- 4,500
- Health Violations
- Yes (1)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Groundwater Rule | 1 | 1 |
Violation History (1)
| Contaminant | Health | Date |
|---|---|---|
| Groundwater Rule | Yes | Dec 10, 2025 |
Frequently Asked Questions
What does EPA SDWIS list for ADOC TUCSON?
How many people does ADOC TUCSON serve?
What violations does ADOC TUCSON have?
What contaminants have been found in ADOC TUCSON water?
Compare beyond Arizona
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest ADOC TUCSON on cumulative violation count (1) and EPA-reported population served (4,500). Violation-count peers include CHOCTAW - CONEHATTA, CHOCTAW - PEARL RIVER, CHOCTAW - TUCKER. Population peers include Laguna Valley, VALDEZ WATER SYSTEM - MAIN, GREENSBORO, UTILITIES BD OF THE CITY OF.
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
ADOC TUCSON (AZ0420557) is drawn from EPA SDWIS. Nearby county systems in this extract include METROPOLITAN DWID; ORO VALLEY WATER UTILITY; COMMUNITY WC OF GREEN VALLEY; USAF DAVIS MONTHAN AFB. Health-based rows (1 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.