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Community Water System · PWS CO0103030

Deer Trail Town Of

Deer Trail, Colorado 80105 - drinking water served from groundwater sources to 1,648 people, tracked in EPA SDWIS and UCMR5.

1,648
People served
444
EPA violations
28
Health-based
Untested
UCMR5 result

The verdict

EPA records 444 drinking-water violations at Deer Trail Town Of, 6% of them health-based - above the Colorado per-system average.

444
Total EPA violations on record
6%
Health-based (MCL / treatment failure)
1,648
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Deer Trail Town Of

Deer Trail Town Of is a local-owned community water system that delivers drinking water to 1,648 residents in Deer Trail, Colorado (Arapahoe County) through 553 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 444 total violations for this system , of which 28 (6%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 411 monitoring and reporting violations are on file. The most recent violation on record dates to 2023.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 28 violations (MCL, health-based). 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%).

Deer Trail Town Of's 444 violations sit above 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
1,648
Total Violations
444
Health-Based Violations
28
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
553
County
Arapahoe
School/Daycare
No
MCL Violations
28
Monitoring Violations
411
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 28 1997
Nitrate MR 14 2019
Coliform (TCR) MR 9 2007
Arsenic MR 6 2011
Mercury MR 6 2011
Antimony, Total MR 6 2011
Beryllium, Total MR 6 2011
Thallium, Total MR 6 2011
Selenium MR 6 2011
Barium MR 6 2011
Cadmium MR 6 2011
Chromium MR 6 2011
1,2,4-Trichlorobenzene MR 6 2011
Xylenes, Total MR 6 2011
o-Dichlorobenzene MR 6 2011
p-Dichlorobenzene MR 6 2011
trans-1,2-Dichloroethylene MR 6 2011
1,2-Dichloroethane MR 6 2011
1,1,1-Trichloroethane MR 6 2011
Trichloroethylene MR 6 2011
Ethylbenzene MR 6 2011
Styrene MR 6 2011
cis-1,2-Dichloroethylene MR 6 2011
DICHLOROMETHANE MR 6 2011
1,2-Dichloropropane MR 6 2011
1,1,2-Trichloroethane MR 6 2011
Tetrachloroethylene MR 6 2011
Endrin MR 6 2011
Methoxychlor MR 6 2011
Toxaphene MR 6 2011

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 Deer Trail Town Of.

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 CO0103030 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 Deer Trail Town Of 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
2023 Public Notice Other 4 SDWIS / CO0103030 / 7500
2019 Nitrate MR 14 SDWIS / CO0103030 / 1040
2011 Arsenic MR 6 SDWIS / CO0103030 / 1005
2011 Mercury MR 6 SDWIS / CO0103030 / 1035
2011 Antimony, Total MR 6 SDWIS / CO0103030 / 1074
2011 Beryllium, Total MR 6 SDWIS / CO0103030 / 1075
2011 Thallium, Total MR 6 SDWIS / CO0103030 / 1085
2011 Selenium MR 6 SDWIS / CO0103030 / 1045
2011 Barium MR 6 SDWIS / CO0103030 / 1010
2011 Cadmium MR 6 SDWIS / CO0103030 / 1015
2011 Chromium MR 6 SDWIS / CO0103030 / 1020
2011 1,2,4-Trichlorobenzene MR 6 SDWIS / CO0103030 / 2378
2011 Xylenes, Total MR 6 SDWIS / CO0103030 / 2955
2011 o-Dichlorobenzene MR 6 SDWIS / CO0103030 / 2968
2011 p-Dichlorobenzene MR 6 SDWIS / CO0103030 / 2969

How Deer Trail Town Of Compares

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

Metric Deer Trail Town Of Colorado avg Federal benchmark
Total violations 444 108.9 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 28 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 1,648 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 Deer Trail Town Of water safe to drink? ▼
Deer Trail Town Of (PWS ID: CO0103030) has 444 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,648 people using Groundwater sources.
How many people does Deer Trail Town Of serve? ▼
Deer Trail Town Of serves 1,648 people in Deer Trail, Colorado. It is a Local-owned system using Groundwater water sources with 553 service connections.
What type of violations does Deer Trail Town Of have? ▼
Deer Trail Town Of has 444 total violations: 28 health-based violations (MCL exceedances or treatment failures), 411 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Deer Trail Town Of water? ▼
No PFAS testing data is available for Deer Trail Town Of under the EPA's UCMR5 monitoring program.
What water source does Deer Trail Town Of use? ▼
Deer Trail Town Of 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.