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Community Water System · PWS CO0134200

Edgemont Ranch MD

Durango, Colorado 81301 - drinking water served from surface water sources to 1,200 people, tracked in EPA SDWIS and UCMR5.

1,200
People served
255
EPA violations
15
Health-based
Untested
UCMR5 result

The verdict

EPA records 255 drinking-water violations at Edgemont Ranch MD, 6% of them health-based - above the Colorado per-system average.

255
Total EPA violations on record
6%
Health-based (MCL / treatment failure)
1,200
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Edgemont Ranch MD

Edgemont Ranch MD is a local-owned community water system that delivers drinking water to 1,200 residents in Durango, Colorado (La Plata County) through 760 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 255 total violations for this system , of which 15 (6%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 228 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 E. COLI, recorded in 12 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%).

Edgemont Ranch MD's 255 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
1,200
Total Violations
255
Health-Based Violations
15
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Local
Connections
760
County
La Plata
School/Daycare
No
MCL Violations
8
Monitoring Violations
228
Treatment Tech Violations
7

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
E. COLI MR 12 2017
Surface Water Treatment Rule MR 9 2024
Interim Enhanced Surface Water Treatment Rule MR 9 2024
Consumer Confidence Rule Other 9 2025
Surface Water Treatment Rule TT 7 2005
TTHM MR 4 2009
1,2,4-Trichlorobenzene MR 4 2012
DICHLOROMETHANE MR 4 2012
p-Dichlorobenzene MR 4 2012
Vinyl chloride MR 4 2012
1,1-Dichloroethylene MR 4 2012
trans-1,2-Dichloroethylene MR 4 2012
1,2-Dichloroethane MR 4 2012
Carbon tetrachloride MR 4 2012
1,1,2-Trichloroethane MR 4 2012
Benzene MR 4 2012
Ethylbenzene MR 4 2012
Styrene MR 4 2012
Nitrate MR 4 2012
TTHM MCL 4 2019
Coliform (TCR) MCL 4 2010
Xylenes, Total MR 4 2012
Trichloroethylene MR 4 2012
Tetrachloroethylene MR 4 2012
Total Haloacetic Acids (HAA5) MR 4 2009
CHLOROBENZENE MR 4 2012
1,1,1-Trichloroethane MR 4 2012
cis-1,2-Dichloroethylene MR 4 2012
o-Dichlorobenzene MR 4 2012
1,2-Dichloropropane MR 4 2012

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 Edgemont Ranch MD.

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 CO0134200 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 Edgemont Ranch MD 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 Consumer Confidence Rule Other 9 SDWIS / CO0134200 / 7000
2024 Surface Water Treatment Rule MR 9 SDWIS / CO0134200 / 0200
2024 Interim Enhanced Surface Water Treatment Rule MR 9 SDWIS / CO0134200 / 0300
2019 TTHM MCL 4 SDWIS / CO0134200 / 2950
2019 Lead and Copper Rule MR 3 SDWIS / CO0134200 / 5000
2018 Revised Total Coliform Rule MON 3 SDWIS / CO0134200 / 8000
2018 Chlorine MR 3 SDWIS / CO0134200 / 0999
2017 E. COLI MR 12 SDWIS / CO0134200 / 3014
2012 1,2,4-Trichlorobenzene MR 4 SDWIS / CO0134200 / 2378
2012 DICHLOROMETHANE MR 4 SDWIS / CO0134200 / 2964
2012 p-Dichlorobenzene MR 4 SDWIS / CO0134200 / 2969
2012 Vinyl chloride MR 4 SDWIS / CO0134200 / 2976
2012 1,1-Dichloroethylene MR 4 SDWIS / CO0134200 / 2977
2012 trans-1,2-Dichloroethylene MR 4 SDWIS / CO0134200 / 2979
2012 1,2-Dichloroethane MR 4 SDWIS / CO0134200 / 2980

How Edgemont Ranch MD Compares

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

Metric Edgemont Ranch MD Colorado avg Federal benchmark
Total violations 255 108.9 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 15 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 1,200 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 Edgemont Ranch MD water safe to drink? ▼
Edgemont Ranch MD (PWS ID: CO0134200) has 255 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,200 people using Surface Water sources.
How many people does Edgemont Ranch MD serve? ▼
Edgemont Ranch MD serves 1,200 people in Durango, Colorado. It is a Local-owned system using Surface Water water sources with 760 service connections.
What type of violations does Edgemont Ranch MD have? ▼
Edgemont Ranch MD has 255 total violations: 15 health-based violations (MCL exceedances or treatment failures), 228 monitoring/reporting violations, and 7 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Edgemont Ranch MD water? ▼
No PFAS testing data is available for Edgemont Ranch MD under the EPA's UCMR5 monitoring program.
What water source does Edgemont Ranch MD use? ▼
Edgemont Ranch MD uses Surface Water 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.