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Community Water System · PWS CO0103079

Stage Run HOA

Aurora, Colorado 80013 - drinking water served from groundwater sources to 150 people, tracked in EPA SDWIS and UCMR5.

150
People served
97
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 97 drinking-water violations at Stage Run HOA - below the Colorado per-system average.

97
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
150
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Stage Run HOA

Stage Run HOA is a private-owned community water system that delivers drinking water to 150 residents in Aurora, Colorado (Arapahoe County) through 59 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 97 total violations for this system , of which 0 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 79 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 15 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 Colorado, EPA tracks 2,193 public water systems serving 7,473,456 people, with 238,796 cumulative violations and 30,589 health-based violations on record. About 93% of systems in the state carry at least one violation, and state-wide the average per system is 108.9 violations. Statewide, 98 of 163 UCMR5-tested systems have reported PFAS detections (60.1%).

Stage Run HOA's 97 violations sit below the Colorado average.

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
150
Total Violations
97
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
59
County
Arapahoe
School/Daycare
No
MCL Violations
0
Monitoring Violations
79
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 15 2009
Nitrate MR 11 2009
Lead and Copper Rule MR 9 2025
Consumer Confidence Rule Other 8 2021
Mercury MR 6 2021
Public Notice Other 5 2018
Revised Total Coliform Rule Other 4 2017
TTHM MR 4 2023
Total Haloacetic Acids (HAA5) MR 4 2023
Chromium MR 3 2005
Nickel MR 3 2005
Antimony, Total MR 3 2005
Beryllium, Total MR 3 2005
Thallium, Total MR 3 2005
Selenium MR 3 2005
Barium MR 3 2005
Chlorine MR 3 2009
Arsenic MR 3 2005
Cadmium MR 3 2005

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 Stage Run HOA.

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 CO0103079 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Colorado Drinking Water Authority

Colorado Department of Public Health and Environment, Water Quality Control is the primacy agency that licenses and inspects Stage Run HOA under EPA-delegated authority.

Open CO regulator portal

Source: Colorado Department of Public Health and Environment, Water Quality Control

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 Lead and Copper Rule MR 9 SDWIS / CO0103079 / 5000
2023 TTHM MR 4 SDWIS / CO0103079 / 2950
2023 Total Haloacetic Acids (HAA5) MR 4 SDWIS / CO0103079 / 2456
2021 Consumer Confidence Rule Other 8 SDWIS / CO0103079 / 7000
2021 Mercury MR 6 SDWIS / CO0103079 / 1035
2018 Public Notice Other 5 SDWIS / CO0103079 / 7500
2017 Revised Total Coliform Rule Other 4 SDWIS / CO0103079 / 8000
2009 Coliform (TCR) MR 15 SDWIS / CO0103079 / 3100
2009 Nitrate MR 11 SDWIS / CO0103079 / 1040
2009 Chlorine MR 3 SDWIS / CO0103079 / 0999
2005 Chromium MR 3 SDWIS / CO0103079 / 1020
2005 Nickel MR 3 SDWIS / CO0103079 / 1036
2005 Antimony, Total MR 3 SDWIS / CO0103079 / 1074
2005 Beryllium, Total MR 3 SDWIS / CO0103079 / 1075
2005 Thallium, Total MR 3 SDWIS / CO0103079 / 1085

How Stage Run HOA Compares

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

Metric Stage Run HOA Colorado avg Federal benchmark
Total violations 97 108.9 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 13.9 Indicates a contaminant exceeded a federal MCL
PFAS detection None 60.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 150 3,408 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 2,193 regulated public water systems in Colorado.

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 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Stage Run HOA water safe to drink? ▼
Stage Run HOA (PWS ID: CO0103079) has 97 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 150 people using Groundwater sources.
How many people does Stage Run HOA serve? ▼
Stage Run HOA serves 150 people in Aurora, Colorado. It is a Private-owned system using Groundwater water sources with 59 service connections.
What type of violations does Stage Run HOA have? ▼
Stage Run HOA has 97 total violations: 0 health-based violations (MCL exceedances or treatment failures), 79 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Stage Run HOA water? ▼
No PFAS testing data is available for Stage Run HOA under the EPA's UCMR5 monitoring program.
What water source does Stage Run HOA use? ▼
Stage Run HOA 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.
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.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.