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HALCYON ACRES 2

PWS ID: AZ0410058 · TUCSON, Arizona 85754

HALCYON ACRES 2 serves 164 people in TUCSON, Arizona using Groundwater water sources. It has 128 recorded EPA violations, including 2 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: HALCYON ACRES 2

HALCYON ACRES 2 is a private-owned community water system that delivers drinking water to 164 residents in TUCSON, Arizona (Pima County) through 67 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 128 total violations for this system , of which 2 (2%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 113 monitoring and reporting violations are on file. The most recent violation on record dates to 2020.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 10 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. HALCYON ACRES 2's 128 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
164
Total Violations
128
Health-Based Violations
2
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
67
County
Pima
School/Daycare
No
MCL Violations
2
Monitoring Violations
113
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 10 2009
Consumer Confidence Rule Other 10 2019
Nitrate MR 8 2002
Revised Total Coliform Rule MON 6 2019
Lead and Copper Rule MR 3 2006
Public Notice Other 3 2020
DICHLOROMETHANE MR 2 2002
o-Dichlorobenzene MR 2 2002
1,1-Dichloroethylene MR 2 2002
trans-1,2-Dichloroethylene MR 2 2002
1,2-Dichloroethane MR 2 2002
1,1,1-Trichloroethane MR 2 2002
1,1,2-Trichloroethane MR 2 2002
Toluene MR 2 2002
Ethylbenzene MR 2 2002
1,2,4-Trichlorobenzene MR 2 2002
cis-1,2-Dichloroethylene MR 2 2002
Xylenes, Total MR 2 2002
Styrene MR 2 2002
Coliform (TCR) MCL 2 2007
Chlorine MR 2 2015
Fluoride MR 2 1989
Barium MR 2 1989
Cadmium MR 2 1989
Selenium MR 2 1989
Mercury MR 2 1989
Chromium MR 2 1989
Arsenic MR 2 1989
Benzene MR 2 2002
Carbon tetrachloride MR 2 2002

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 HALCYON ACRES 2.

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 AZ0410058 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 HALCYON ACRES 2 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
2020 Public Notice Other 3 SDWIS / AZ0410058 / 7500
2019 Consumer Confidence Rule Other 10 SDWIS / AZ0410058 / 7000
2019 Revised Total Coliform Rule MON 6 SDWIS / AZ0410058 / 8000
2015 Chlorine MR 2 SDWIS / AZ0410058 / 0999
2012 Total Haloacetic Acids (HAA5) MR 2 SDWIS / AZ0410058 / 2456
2012 TTHM MR 2 SDWIS / AZ0410058 / 2950
2009 Coliform (TCR) MR 10 SDWIS / AZ0410058 / 3100
2007 Coliform (TCR) MCL 2 SDWIS / AZ0410058 / 3100
2006 Lead and Copper Rule MR 3 SDWIS / AZ0410058 / 5000
2002 Nitrate MR 8 SDWIS / AZ0410058 / 1040
2002 DICHLOROMETHANE MR 2 SDWIS / AZ0410058 / 2964
2002 o-Dichlorobenzene MR 2 SDWIS / AZ0410058 / 2968
2002 1,1-Dichloroethylene MR 2 SDWIS / AZ0410058 / 2977
2002 trans-1,2-Dichloroethylene MR 2 SDWIS / AZ0410058 / 2979
2002 1,2-Dichloroethane MR 2 SDWIS / AZ0410058 / 2980

How HALCYON ACRES 2 Compares

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

Metric HALCYON ACRES 2 Arizona avg Federal benchmark
Total violations 128 153.3 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 2 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 164 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 HALCYON ACRES 2 water safe to drink? ▼
HALCYON ACRES 2 (PWS ID: AZ0410058) has 128 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 164 people using Groundwater sources.
How many people does HALCYON ACRES 2 serve? ▼
HALCYON ACRES 2 serves 164 people in TUCSON, Arizona. It is a Private-owned system using Groundwater water sources with 67 service connections.
What type of violations does HALCYON ACRES 2 have? ▼
HALCYON ACRES 2 has 128 total violations: 2 health-based violations (MCL exceedances or treatment failures), 113 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in HALCYON ACRES 2 water? ▼
No PFAS testing data is available for HALCYON ACRES 2 under the EPA's UCMR5 monitoring program.
What water source does HALCYON ACRES 2 use? ▼
HALCYON ACRES 2 uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
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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