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COLDWATER CANYON 2

PWS ID: AZ0413192 · TUCSON, Arizona 85745

COLDWATER CANYON 2 serves 247 people in TUCSON, Arizona using Groundwater water sources. It has 199 recorded EPA violations, including 10 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: COLDWATER CANYON 2

COLDWATER CANYON 2 is a private-owned community water system that delivers drinking water to 247 residents in TUCSON, Arizona (Yavapai County) through 109 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 199 total violations for this system , of which 10 (5%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 157 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 30 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. COLDWATER CANYON 2's 199 violations sit above 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
247
Total Violations
199
Health-Based Violations
10
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
109
County
Yavapai
School/Daycare
No
MCL Violations
10
Monitoring Violations
157
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 30 2015
Chlorine MR 29 2022
Consumer Confidence Rule Other 22 2019
Arsenic MR 15 2025
Lead and Copper Rule MR 5 2021
Nitrate MR 5 2006
Revised Total Coliform Rule MCL 4 2023
Revised Total Coliform Rule MON 3 2017
Coliform (TCR) MCL 3 2003
Arsenic MCL 3 2018
1,2,4-Trichlorobenzene MR 2 2002
o-Dichlorobenzene MR 2 2002
1,1-Dichloroethylene MR 2 2002
1,2-Dichloroethane MR 2 2002
1,1,1-Trichloroethane MR 2 2002
Carbon tetrachloride MR 2 2002
1,2-Dichloropropane MR 2 2002
Trichloroethylene MR 2 2002
1,1,2-Trichloroethane MR 2 2002
Tetrachloroethylene MR 2 2002
Toluene MR 2 2002
Styrene MR 2 2002
Xylenes, Total MR 2 2002
Ethylbenzene MR 2 2002
p-Dichlorobenzene MR 2 2002
CHLOROBENZENE MR 2 2002
Public Notice Other 2 2022
DICHLOROMETHANE MR 2 2002
trans-1,2-Dichloroethylene MR 2 2002
cis-1,2-Dichloroethylene 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 COLDWATER CANYON 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 AZ0413192 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 COLDWATER CANYON 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
2025 Arsenic MR 15 SDWIS / AZ0413192 / 1005
2023 Revised Total Coliform Rule MCL 4 SDWIS / AZ0413192 / 8000
2022 Chlorine MR 29 SDWIS / AZ0413192 / 0999
2022 Public Notice Other 2 SDWIS / AZ0413192 / 7500
2021 Lead and Copper Rule MR 5 SDWIS / AZ0413192 / 5000
2019 Consumer Confidence Rule Other 22 SDWIS / AZ0413192 / 7000
2018 Arsenic MCL 3 SDWIS / AZ0413192 / 1005
2017 Revised Total Coliform Rule MON 3 SDWIS / AZ0413192 / 8000
2015 Coliform (TCR) MR 30 SDWIS / AZ0413192 / 3100
2006 Nitrate MR 5 SDWIS / AZ0413192 / 1040
2003 Coliform (TCR) MCL 3 SDWIS / AZ0413192 / 3100
2002 1,2,4-Trichlorobenzene MR 2 SDWIS / AZ0413192 / 2378
2002 o-Dichlorobenzene MR 2 SDWIS / AZ0413192 / 2968
2002 1,1-Dichloroethylene MR 2 SDWIS / AZ0413192 / 2977
2002 1,2-Dichloroethane MR 2 SDWIS / AZ0413192 / 2980

How COLDWATER CANYON 2 Compares

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

Metric COLDWATER CANYON 2 Arizona avg Federal benchmark
Total violations 199 153.3 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 10 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 247 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 COLDWATER CANYON 2 water safe to drink? ▼
COLDWATER CANYON 2 (PWS ID: AZ0413192) has 199 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 247 people using Groundwater sources.
How many people does COLDWATER CANYON 2 serve? ▼
COLDWATER CANYON 2 serves 247 people in TUCSON, Arizona. It is a Private-owned system using Groundwater water sources with 109 service connections.
What type of violations does COLDWATER CANYON 2 have? ▼
COLDWATER CANYON 2 has 199 total violations: 10 health-based violations (MCL exceedances or treatment failures), 157 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in COLDWATER CANYON 2 water? ▼
No PFAS testing data is available for COLDWATER CANYON 2 under the EPA's UCMR5 monitoring program.
What water source does COLDWATER CANYON 2 use? ▼
COLDWATER CANYON 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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Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by Kiznis Studio Editorial