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Community Water System · PWS CO0143510

Millard Mobile Home Park

Montrose, Colorado 81403 - drinking water served from groundwater sources to 90 people, tracked in EPA SDWIS and UCMR5.

90
People served
411
EPA violations
6
Health-based
Untested
UCMR5 result

The verdict

EPA records 411 drinking-water violations at Millard Mobile Home Park, 1% of them health-based - above the Colorado per-system average.

411
Total EPA violations on record
1%
Health-based (MCL / treatment failure)
90
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Millard Mobile Home Park

Millard Mobile Home Park is a private-owned community water system that delivers drinking water to 90 residents in Montrose, Colorado (Montrose County) through 32 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 411 total violations for this system , of which 6 (1%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 383 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 Lead and Copper Rule, recorded in 21 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%).

Millard Mobile Home Park's 411 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
90
Total Violations
411
Health-Based Violations
6
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
32
County
Montrose
School/Daycare
No
MCL Violations
0
Monitoring Violations
383
Treatment Tech Violations
6

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 21 2019
Chlorine MR 14 2020
Coliform (TCR) MR 11 2015
Consumer Confidence Rule Other 11 2020
cis-1,2-Dichloroethylene MR 9 2014
DICHLOROMETHANE MR 9 2014
Vinyl chloride MR 9 2014
1,1-Dichloroethylene MR 9 2014
trans-1,2-Dichloroethylene MR 9 2014
1,2-Dichloroethane MR 9 2014
1,1,1-Trichloroethane MR 9 2014
1,2-Dichloropropane MR 9 2014
Trichloroethylene MR 9 2014
1,1,2-Trichloroethane MR 9 2014
Tetrachloroethylene MR 9 2014
Benzene MR 9 2014
Ethylbenzene MR 9 2014
Styrene MR 9 2014
1,2,4-Trichlorobenzene MR 9 2014
Xylenes, Total MR 9 2014
Carbon tetrachloride MR 9 2014
p-Dichlorobenzene MR 9 2014
Toluene MR 9 2014
Revised Total Coliform Rule MON 9 2020
CHLOROBENZENE MR 9 2014
o-Dichlorobenzene MR 9 2014
Dalapon MR 6 2005
Diquat MR 6 2017
Endothall MR 6 2017
Stage 1 Disinfectants and Disinfection Byproducts Rule TT 6 2018

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 Millard Mobile Home Park.

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 CO0143510 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 Millard Mobile Home Park 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 Revised Total Coliform Rule Other 3 SDWIS / CO0143510 / 8000
2020 Chlorine MR 14 SDWIS / CO0143510 / 0999
2020 Consumer Confidence Rule Other 11 SDWIS / CO0143510 / 7000
2020 Revised Total Coliform Rule MON 9 SDWIS / CO0143510 / 8000
2020 Public Notice Other 4 SDWIS / CO0143510 / 7500
2019 Lead and Copper Rule MR 21 SDWIS / CO0143510 / 5000
2018 Stage 1 Disinfectants and Disinfection Byproducts Rule TT 6 SDWIS / CO0143510 / 0400
2017 Diquat MR 6 SDWIS / CO0143510 / 2032
2017 Endothall MR 6 SDWIS / CO0143510 / 2033
2015 Coliform (TCR) MR 11 SDWIS / CO0143510 / 3100
2014 cis-1,2-Dichloroethylene MR 9 SDWIS / CO0143510 / 2380
2014 DICHLOROMETHANE MR 9 SDWIS / CO0143510 / 2964
2014 Vinyl chloride MR 9 SDWIS / CO0143510 / 2976
2014 1,1-Dichloroethylene MR 9 SDWIS / CO0143510 / 2977
2014 trans-1,2-Dichloroethylene MR 9 SDWIS / CO0143510 / 2979

How Millard Mobile Home Park Compares

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

Metric Millard Mobile Home Park Colorado avg Federal benchmark
Total violations 411 108.9 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 6 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 90 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 Millard Mobile Home Park water safe to drink? ▼
Millard Mobile Home Park (PWS ID: CO0143510) has 411 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 90 people using Groundwater sources.
How many people does Millard Mobile Home Park serve? ▼
Millard Mobile Home Park serves 90 people in Montrose, Colorado. It is a Private-owned system using Groundwater water sources with 32 service connections.
What type of violations does Millard Mobile Home Park have? ▼
Millard Mobile Home Park has 411 total violations: 6 health-based violations (MCL exceedances or treatment failures), 383 monitoring/reporting violations, and 6 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Millard Mobile Home Park water? ▼
No PFAS testing data is available for Millard Mobile Home Park under the EPA's UCMR5 monitoring program.
What water source does Millard Mobile Home Park use? ▼
Millard Mobile Home Park 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.