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SANTA CATALINA CATHOLIC CHURCH

PWS ID: AZ0410193 · TUCSON, Arizona 85739

SANTA CATALINA CATHOLIC CHURCH serves 212 people in TUCSON, Arizona using Groundwater water sources. It has 87 recorded EPA violations, including 3 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: SANTA CATALINA CATHOLIC CHURCH

SANTA CATALINA CATHOLIC CHURCH is a public/private-owned transient non-community water system that delivers drinking water to 212 residents in TUCSON, Arizona (Pima County) through 2 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 87 total violations for this system , of which 3 (3%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 72 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 24 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across Arizona, EPA tracks 1,493 public water systems serving 7,322,166 people, with 228,944 cumulative violations and 15,663 health-based violations on record. About 98% of systems in the state carry at least one violation, and state-wide the average per system is 153.3 violations. SANTA CATALINA CATHOLIC CHURCH's 87 violations sit below the Arizona average. Statewide, 145 of 152 UCMR5-tested systems have reported PFAS detections (95.4%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
212
Total Violations
87
Health-Based Violations
3
Water Source
Groundwater

System Details

System Type
Transient Non-Community
Owner Type
Public/Private
Connections
2
County
Pima
School/Daycare
No
MCL Violations
3
Monitoring Violations
72
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 24 2016
Nitrate MR 11 2024
Lead and Copper Rule MR 9 2020
Revised Total Coliform Rule RPT 7 2024
Revised Total Coliform Rule MON 6 2017
Coliform (TCR) MCL 3 2013
Chlorine MR 2 2017
TTHM MR 2 2017
Total Haloacetic Acids (HAA5) MR 2 2017
Selenium MR 2 1988
Mercury MR 2 1988
Barium MR 2 1988
Chromium MR 2 1988
Cadmium MR 2 1988
Arsenic MR 2 1988
Fluoride MR 2 1988
Stage 2 Disinfectants and Disinfection Byproducts Rule MR 2 2013
Revised Total Coliform Rule Other 2 2024

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for SANTA CATALINA CATHOLIC CHURCH.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID AZ0410193 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Arizona Drinking Water Authority

Arizona DEQ — Drinking Water Program is the primacy agency that licenses and inspects SANTA CATALINA CATHOLIC CHURCH under EPA-delegated authority.

Open AZ regulator portal

Source: Arizona DEQ — Drinking Water Program

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2024 Nitrate MR 11 SDWIS / AZ0410193 / 1040
2024 Revised Total Coliform Rule RPT 7 SDWIS / AZ0410193 / 8000
2024 Revised Total Coliform Rule Other 2 SDWIS / AZ0410193 / 8000
2020 Lead and Copper Rule MR 9 SDWIS / AZ0410193 / 5000
2017 Revised Total Coliform Rule MON 6 SDWIS / AZ0410193 / 8000
2017 Chlorine MR 2 SDWIS / AZ0410193 / 0999
2017 TTHM MR 2 SDWIS / AZ0410193 / 2950
2017 Total Haloacetic Acids (HAA5) MR 2 SDWIS / AZ0410193 / 2456
2016 Coliform (TCR) MR 24 SDWIS / AZ0410193 / 3100
2013 Coliform (TCR) MCL 3 SDWIS / AZ0410193 / 3100
2013 Stage 2 Disinfectants and Disinfection Byproducts Rule MR 2 SDWIS / AZ0410193 / 0600
1988 Selenium MR 2 SDWIS / AZ0410193 / 1045
1988 Mercury MR 2 SDWIS / AZ0410193 / 1035
1988 Barium MR 2 SDWIS / AZ0410193 / 1010
1988 Chromium MR 2 SDWIS / AZ0410193 / 1020

How SANTA CATALINA CATHOLIC CHURCH Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric SANTA CATALINA CATHOLIC CHURCH Arizona avg Federal benchmark
Total violations 87 153.3 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 3 10.5 Indicates a contaminant exceeded a federal MCL
PFAS detection None 95.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 212 4,904 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 1,493 regulated public water systems in Arizona.

Federal MCL reference — Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is SANTA CATALINA CATHOLIC CHURCH water safe to drink? ▼
SANTA CATALINA CATHOLIC CHURCH (PWS ID: AZ0410193) has 87 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 212 people using Groundwater sources.
How many people does SANTA CATALINA CATHOLIC CHURCH serve? ▼
SANTA CATALINA CATHOLIC CHURCH serves 212 people in TUCSON, Arizona. It is a Public/Private-owned system using Groundwater water sources with 2 service connections.
What type of violations does SANTA CATALINA CATHOLIC CHURCH have? ▼
SANTA CATALINA CATHOLIC CHURCH has 87 total violations: 3 health-based violations (MCL exceedances or treatment failures), 72 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in SANTA CATALINA CATHOLIC CHURCH water? ▼
No PFAS testing data is available for SANTA CATALINA CATHOLIC CHURCH under the EPA's UCMR5 monitoring program.
What water source does SANTA CATALINA CATHOLIC CHURCH use? ▼
SANTA CATALINA CATHOLIC CHURCH uses Groundwater as its primary water source. It is classified as a Transient Non-Community Water System, serving transient populations.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

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