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Community Water System · PWS CO0134580

Los Ranchitos HOA

Durango, Colorado 81301 - drinking water served from groundwater sources to 120 people, tracked in EPA SDWIS and UCMR5.

120
People served
58
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 58 drinking-water violations at Los Ranchitos HOA - below the Colorado per-system average.

58
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
120
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Los Ranchitos HOA

Los Ranchitos HOA is a private-owned community water system that delivers drinking water to 120 residents in Durango, Colorado (La Plata County) through 53 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 58 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 54 monitoring and reporting violations are on file. The most recent violation on record dates to 2011.

The most frequently cited contaminant at this system is Lead and Copper Rule, 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 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, 37 of 163 UCMR5-tested systems have reported PFAS detections (22.7%).

Los Ranchitos HOA's 58 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
120
Total Violations
58
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
53
County
La Plata
School/Daycare
No
MCL Violations
0
Monitoring Violations
54
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 10 2006
Coliform (TCR) MR 6 2002
DICHLOROMETHANE MR 6 2007
Consumer Confidence Rule Other 4 2011
Cadmium MR 3 2002
Chromium MR 3 2002
Nickel MR 3 2002
Antimony, Total MR 3 2002
Beryllium, Total MR 3 2002
Thallium, Total MR 3 2002
Selenium MR 3 2002
Barium MR 3 2002
Mercury MR 3 2002
Arsenic MR 3 2002
Chlorine MR 2 2007

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 Los Ranchitos 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 CO0134580 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 Los Ranchitos 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
2011 Consumer Confidence Rule Other 4 SDWIS / CO0134580 / 7000
2007 DICHLOROMETHANE MR 6 SDWIS / CO0134580 / 2964
2007 Chlorine MR 2 SDWIS / CO0134580 / 0999
2006 Lead and Copper Rule MR 10 SDWIS / CO0134580 / 5000
2002 Coliform (TCR) MR 6 SDWIS / CO0134580 / 3100
2002 Cadmium MR 3 SDWIS / CO0134580 / 1015
2002 Chromium MR 3 SDWIS / CO0134580 / 1020
2002 Nickel MR 3 SDWIS / CO0134580 / 1036
2002 Antimony, Total MR 3 SDWIS / CO0134580 / 1074
2002 Beryllium, Total MR 3 SDWIS / CO0134580 / 1075
2002 Thallium, Total MR 3 SDWIS / CO0134580 / 1085
2002 Selenium MR 3 SDWIS / CO0134580 / 1045
2002 Barium MR 3 SDWIS / CO0134580 / 1010
2002 Mercury MR 3 SDWIS / CO0134580 / 1035
2002 Arsenic MR 3 SDWIS / CO0134580 / 1005

How Los Ranchitos HOA Compares

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

Metric Los Ranchitos HOA Colorado avg Federal benchmark
Total violations 58 108.9 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 22.7% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 120 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 Los Ranchitos HOA water safe to drink? ▼
Los Ranchitos HOA (PWS ID: CO0134580) has 58 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 120 people using Groundwater sources.
How many people does Los Ranchitos HOA serve? ▼
Los Ranchitos HOA serves 120 people in Durango, Colorado. It is a Private-owned system using Groundwater water sources with 53 service connections.
What type of violations does Los Ranchitos HOA have? ▼
Los Ranchitos HOA has 58 total violations: 0 health-based violations (MCL exceedances or treatment failures), 54 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Los Ranchitos HOA water? ▼
No PFAS testing data is available for Los Ranchitos HOA under the EPA's UCMR5 monitoring program.
What water source does Los Ranchitos HOA use? ▼
Los Ranchitos 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.