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Non-Transient Non-Community Water System · PWS CO0111525

Horca Subd Red Bear Inn

Antonito, Colorado 81120 - drinking water served from groundwater sources to 307 people, tracked in EPA SDWIS and UCMR5.

307
People served
300
EPA violations
22
Health-based
Untested
UCMR5 result

The verdict

EPA records 300 drinking-water violations at Horca Subd Red Bear Inn, 7% of them health-based - above the Colorado per-system average.

300
Total EPA violations on record
7%
Health-based (MCL / treatment failure)
307
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Horca Subd Red Bear Inn

Horca Subd Red Bear Inn is a private-owned non-transient non-community water system that delivers drinking water to 307 residents in Antonito, Colorado (Conejos County) through 145 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 300 total violations for this system , of which 22 (7%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 274 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 36 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%).

Horca Subd Red Bear Inn's 300 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
307
Total Violations
300
Health-Based Violations
22
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
145
County
Conejos
School/Daycare
No
MCL Violations
20
Monitoring Violations
274
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 36 2012
Cadmium MCL 20 2024
Total Haloacetic Acids (HAA5) MR 19 2015
TTHM MR 18 2015
Chlorine MR 17 2024
Lead and Copper Rule MR 16 2021
Cadmium MR 9 2025
1,2,4-Trichlorobenzene MR 7 2008
cis-1,2-Dichloroethylene MR 7 2008
Xylenes, Total MR 7 2008
o-Dichlorobenzene MR 7 2008
p-Dichlorobenzene MR 7 2008
Vinyl chloride MR 7 2008
trans-1,2-Dichloroethylene MR 7 2008
1,2-Dichloroethane MR 7 2008
1,1,1-Trichloroethane MR 7 2008
Carbon tetrachloride MR 7 2008
1,2-Dichloropropane MR 7 2008
Trichloroethylene MR 7 2008
Tetrachloroethylene MR 7 2008
CHLOROBENZENE MR 7 2008
Toluene MR 7 2008
Ethylbenzene MR 7 2008
Styrene MR 7 2008
1,1-Dichloroethylene MR 7 2008
1,1,2-Trichloroethane MR 7 2008
Benzene MR 7 2008
DICHLOROMETHANE MR 7 2008
Public Notice Other 4 2024
Nitrate-Nitrite MR 3 1997

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 Horca Subd Red Bear Inn.

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 CO0111525 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 Horca Subd Red Bear Inn 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 Cadmium MR 9 SDWIS / CO0111525 / 1015
2024 Cadmium MCL 20 SDWIS / CO0111525 / 1015
2024 Chlorine MR 17 SDWIS / CO0111525 / 0999
2024 Public Notice Other 4 SDWIS / CO0111525 / 7500
2024 Revised Total Coliform Rule MON 3 SDWIS / CO0111525 / 8000
2021 Lead and Copper Rule MR 16 SDWIS / CO0111525 / 5000
2015 Total Haloacetic Acids (HAA5) MR 19 SDWIS / CO0111525 / 2456
2015 TTHM MR 18 SDWIS / CO0111525 / 2950
2015 Stage 1 Disinfectants and Disinfection Byproducts Rule TT 2 SDWIS / CO0111525 / 0400
2012 Coliform (TCR) MR 36 SDWIS / CO0111525 / 3100
2008 1,2,4-Trichlorobenzene MR 7 SDWIS / CO0111525 / 2378
2008 cis-1,2-Dichloroethylene MR 7 SDWIS / CO0111525 / 2380
2008 Xylenes, Total MR 7 SDWIS / CO0111525 / 2955
2008 o-Dichlorobenzene MR 7 SDWIS / CO0111525 / 2968
2008 p-Dichlorobenzene MR 7 SDWIS / CO0111525 / 2969

How Horca Subd Red Bear Inn Compares

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

Metric Horca Subd Red Bear Inn Colorado avg Federal benchmark
Total violations 300 108.9 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 22 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 307 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 Horca Subd Red Bear Inn water safe to drink?
Horca Subd Red Bear Inn (PWS ID: CO0111525) has 300 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 307 people using Groundwater sources.
How many people does Horca Subd Red Bear Inn serve?
Horca Subd Red Bear Inn serves 307 people in Antonito, Colorado. It is a Private-owned system using Groundwater water sources with 145 service connections.
What type of violations does Horca Subd Red Bear Inn have?
Horca Subd Red Bear Inn has 300 total violations: 22 health-based violations (MCL exceedances or treatment failures), 274 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Horca Subd Red Bear Inn water?
No PFAS testing data is available for Horca Subd Red Bear Inn under the EPA's UCMR5 monitoring program.
What water source does Horca Subd Red Bear Inn use?
Horca Subd Red Bear Inn uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
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.
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.