RIO MERCADO WATER
PWSID: AZ0410968 · Tucson, AZ · Serves 266 people
According to EPA Safe Drinking Water Information System (SDWIS), RIO MERCADO WATER (PWSID AZ0410968) in Tucson, AZ is listed as a CWS water system covering about 266 people. The same extract lists 2 health-based violation records spanning 2024-2024. Those 2 health-based rows for RIO MERCADO WATER cover contaminants such as LEAD AND COPPER RULE REVISIONS; they remain historical EPA registry entries, not a current compliance or drinkability score.
RIO MERCADO WATER has 2 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 LEAD AND COPPER RULE REVISIONS. Recorded violations span 2024–2024. 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)
- AZ0410968
- System Type
- CWS
- Water Source
- Groundwater
- Location
- Tucson, AZ
- Population Served
- 266
- Health Violations
- Yes (2)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| LEAD AND COPPER RULE REVISIONS | 2 | 2 |
Violation History (2)
| Contaminant | Health | Date |
|---|---|---|
| LEAD AND COPPER RULE REVISIONS | Yes | Oct 17, 2024 |
| LEAD AND COPPER RULE REVISIONS | Yes | Oct 17, 2024 |
Frequently Asked Questions
What does EPA SDWIS list for RIO MERCADO WATER?
How many people does RIO MERCADO WATER serve?
What violations does RIO MERCADO WATER have?
What contaminants have been found in RIO MERCADO WATER water?
Compare beyond Arizona
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest RIO MERCADO WATER on cumulative violation count (2) and EPA-reported population served (266). Violation-count peers include SAINT REGIS MOHAWK TRIBE, REDBY/RED LAKE, Kickapoo Traditional Tribe.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Nearby Water Systems
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About This Data
RIO MERCADO WATER (AZ0410968) 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 (2 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.