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Non-Transient Non-Community Water System · PWS CO0219685

Roundup River Ranch

Gypsum, Colorado 81637 - drinking water served from surface water sources to 167 people, tracked in EPA SDWIS and UCMR5.

167
People served
82
EPA violations
36
Health-based
Untested
UCMR5 result

The verdict

EPA records 82 drinking-water violations at Roundup River Ranch, 44% of them health-based - below the Colorado per-system average.

82
Total EPA violations on record
44%
Health-based (MCL / treatment failure)
167
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Roundup River Ranch

Roundup River Ranch is a private-owned non-transient non-community water system that delivers drinking water to 167 residents in Gypsum, Colorado (Eagle County) through 12 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 82 total violations for this system , of which 36 (44%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 38 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 Surface Water Treatment Rule, recorded in 28 violations (TT, health-based). 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%).

Roundup River Ranch's 82 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
167
Total Violations
82
Health-Based Violations
36
Water Source
Surface Water

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
12
County
Eagle
School/Daycare
No
MCL Violations
0
Monitoring Violations
38
Treatment Tech Violations
36

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Surface Water Treatment Rule TT 28 2018
E. COLI MR 11 2023
Surface Water Treatment Rule MR 11 2012
Coliform (TCR) MR 8 2012
Public Notice Other 8 2018
Interim Enhanced Surface Water Treatment Rule TT 8 2025
Lead and Copper Rule MR 3 2023
Interim Enhanced Surface Water Treatment Rule MR 3 2025
TTHM MR 2 2025

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 Roundup River Ranch.

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 CO0219685 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 Roundup River Ranch 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 Interim Enhanced Surface Water Treatment Rule TT 8 SDWIS / CO0219685 / 0300
2025 Interim Enhanced Surface Water Treatment Rule MR 3 SDWIS / CO0219685 / 0300
2025 TTHM MR 2 SDWIS / CO0219685 / 2950
2023 E. COLI MR 11 SDWIS / CO0219685 / 3014
2023 Lead and Copper Rule MR 3 SDWIS / CO0219685 / 5000
2018 Surface Water Treatment Rule TT 28 SDWIS / CO0219685 / 0200
2018 Public Notice Other 8 SDWIS / CO0219685 / 7500
2012 Surface Water Treatment Rule MR 11 SDWIS / CO0219685 / 0200
2012 Coliform (TCR) MR 8 SDWIS / CO0219685 / 3100

How Roundup River Ranch Compares

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

Metric Roundup River Ranch Colorado avg Federal benchmark
Total violations 82 108.9 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 36 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 167 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 Roundup River Ranch water safe to drink? ▼
Roundup River Ranch (PWS ID: CO0219685) has 82 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 167 people using Surface Water sources.
How many people does Roundup River Ranch serve? ▼
Roundup River Ranch serves 167 people in Gypsum, Colorado. It is a Private-owned system using Surface Water water sources with 12 service connections.
What type of violations does Roundup River Ranch have? ▼
Roundup River Ranch has 82 total violations: 36 health-based violations (MCL exceedances or treatment failures), 38 monitoring/reporting violations, and 36 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Roundup River Ranch water? ▼
No PFAS testing data is available for Roundup River Ranch under the EPA's UCMR5 monitoring program.
What water source does Roundup River Ranch use? ▼
Roundup River Ranch uses Surface Water 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.