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Non-Transient Non-Community Water System · PWS CO0211185

Conejos County Courthouse

Conejos, Colorado 81120 - drinking water served from groundwater sources to 84 people, tracked in EPA SDWIS and UCMR5.

84
People served
580
EPA violations
4
Health-based
Untested
UCMR5 result

The verdict

EPA records 580 drinking-water violations at Conejos County Courthouse, 1% of them health-based - above the Colorado per-system average.

580
Total EPA violations on record
1%
Health-based (MCL / treatment failure)
84
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Conejos County Courthouse

Conejos County Courthouse is a local-owned non-transient non-community water system that delivers drinking water to 84 residents in Conejos, Colorado (Conejos County) through 3 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 580 total violations for this system , of which 4 (1%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 576 monitoring and reporting violations are on file. The most recent violation on record dates to 2018.

The most frequently cited contaminant at this system is Simazine, recorded in 9 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%).

Conejos County Courthouse's 580 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
84
Total Violations
580
Health-Based Violations
4
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Local
Connections
3
County
Conejos
School/Daycare
No
MCL Violations
0
Monitoring Violations
576
Treatment Tech Violations
4

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Simazine MR 9 2009
2,4-D MR 9 2009
Benzo(a)pyrene MR 9 2009
Pentachlorophenol MR 9 2009
ETHYLENE DIBROMIDE MR 9 2009
cis-1,2-Dichloroethylene MR 9 2009
DICHLOROMETHANE MR 9 2009
o-Dichlorobenzene MR 9 2009
p-Dichlorobenzene MR 9 2009
Vinyl chloride MR 9 2009
1,1-Dichloroethylene MR 9 2009
trans-1,2-Dichloroethylene MR 9 2009
Picloram MR 9 2009
1,1,1-Trichloroethane MR 9 2009
Carbon tetrachloride MR 9 2009
1,2-Dichloropropane MR 9 2009
Trichloroethylene MR 9 2009
CHLOROBENZENE MR 9 2009
Benzene MR 9 2009
Dinoseb MR 9 2009
Methoxychlor MR 9 2009
Toxaphene MR 9 2009
Di(2-ethylhexyl) adipate MR 9 2009
OXAMYL MR 9 2009
Aldicarb sulfoxide MR 9 2009
Aldicarb sulfone MR 9 2009
Carbofuran MR 9 2009
Atrazine MR 9 2009
2,4,5-TP MR 9 2009
Arsenic MR 9 2009

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 Conejos County Courthouse.

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 CO0211185 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 Conejos County Courthouse 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
2018 Stage 1 Disinfectants and Disinfection Byproducts Rule TT 4 SDWIS / CO0211185 / 0400
2009 Simazine MR 9 SDWIS / CO0211185 / 2037
2009 2,4-D MR 9 SDWIS / CO0211185 / 2105
2009 Benzo(a)pyrene MR 9 SDWIS / CO0211185 / 2306
2009 Pentachlorophenol MR 9 SDWIS / CO0211185 / 2326
2009 ETHYLENE DIBROMIDE MR 9 SDWIS / CO0211185 / 2946
2009 cis-1,2-Dichloroethylene MR 9 SDWIS / CO0211185 / 2380
2009 DICHLOROMETHANE MR 9 SDWIS / CO0211185 / 2964
2009 o-Dichlorobenzene MR 9 SDWIS / CO0211185 / 2968
2009 p-Dichlorobenzene MR 9 SDWIS / CO0211185 / 2969
2009 Vinyl chloride MR 9 SDWIS / CO0211185 / 2976
2009 1,1-Dichloroethylene MR 9 SDWIS / CO0211185 / 2977
2009 trans-1,2-Dichloroethylene MR 9 SDWIS / CO0211185 / 2979
2009 Picloram MR 9 SDWIS / CO0211185 / 2040
2009 1,1,1-Trichloroethane MR 9 SDWIS / CO0211185 / 2981

How Conejos County Courthouse Compares

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

Metric Conejos County Courthouse Colorado avg Federal benchmark
Total violations 580 108.9 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 4 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 84 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 Conejos County Courthouse water safe to drink? ▼
Conejos County Courthouse (PWS ID: CO0211185) has 580 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 84 people using Groundwater sources.
How many people does Conejos County Courthouse serve? ▼
Conejos County Courthouse serves 84 people in Conejos, Colorado. It is a Local-owned system using Groundwater water sources with 3 service connections.
What type of violations does Conejos County Courthouse have? ▼
Conejos County Courthouse has 580 total violations: 4 health-based violations (MCL exceedances or treatment failures), 576 monitoring/reporting violations, and 4 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Conejos County Courthouse water? ▼
No PFAS testing data is available for Conejos County Courthouse under the EPA's UCMR5 monitoring program.
What water source does Conejos County Courthouse use? ▼
Conejos County Courthouse 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.

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.