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Community Water System · PWS CO0247010

River-Dale Ranch

Morrison, Colorado 80465 - drinking water served from surface water sources to 83 people, tracked in EPA SDWIS and UCMR5.

83
People served
305
EPA violations
48
Health-based
Untested
UCMR5 result

The verdict

EPA records 305 drinking-water violations at River-Dale Ranch, 16% of them health-based - above the Colorado per-system average.

305
Total EPA violations on record
16%
Health-based (MCL / treatment failure)
83
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: River-Dale Ranch

River-Dale Ranch is a private-owned community water system that delivers drinking water to 83 residents in Morrison, Colorado (Park County) through 26 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 305 total violations for this system , of which 48 (16%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 237 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 94 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%).

River-Dale Ranch's 305 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
83
Total Violations
305
Health-Based Violations
48
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Private
Connections
26
County
Park
School/Daycare
No
MCL Violations
9
Monitoring Violations
237
Treatment Tech Violations
39

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 94 2010
Surface Water Treatment Rule TT 39 2005
Surface Water Treatment Rule MR 28 2025
Nitrate MR 9 1995
Coliform (TCR) MCL 9 1999
Lead and Copper Rule MR 6 2002
1,2-Dichloroethane MR 6 1999
Benzene MR 6 1999
Ethylbenzene MR 6 1999
Toluene MR 6 1999
Trichloroethylene MR 6 1999
1,1,1-Trichloroethane MR 6 1999
Tetrachloroethylene MR 6 1999
Endrin MR 6 1999
Xylenes, Total MR 6 1999
trans-1,2-Dichloroethylene MR 6 1999
1,1,2-Trichloroethane MR 6 1999
CHLOROBENZENE MR 6 1999
Carbon tetrachloride MR 6 1999
1,2-Dichloropropane MR 6 1999
Chlorine MR 4 2010
Total Haloacetic Acids (HAA5) MR 3 2016
Interim Enhanced Surface Water Treatment Rule MR 3 2025
Gross Alpha, Excl. Radon and U MR 3 1998
TTHM MR 3 2016
Consumer Confidence Rule Other 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 River-Dale 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 CO0247010 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 River-Dale 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 Surface Water Treatment Rule MR 28 SDWIS / CO0247010 / 0200
2025 Interim Enhanced Surface Water Treatment Rule MR 3 SDWIS / CO0247010 / 0300
2016 Total Haloacetic Acids (HAA5) MR 3 SDWIS / CO0247010 / 2456
2016 TTHM MR 3 SDWIS / CO0247010 / 2950
2010 Coliform (TCR) MR 94 SDWIS / CO0247010 / 3100
2010 Chlorine MR 4 SDWIS / CO0247010 / 0999
2007 Consumer Confidence Rule Other 2 SDWIS / CO0247010 / 7000
2005 Surface Water Treatment Rule TT 39 SDWIS / CO0247010 / 0200
2002 Lead and Copper Rule MR 6 SDWIS / CO0247010 / 5000
1999 Coliform (TCR) MCL 9 SDWIS / CO0247010 / 3100
1999 1,2-Dichloroethane MR 6 SDWIS / CO0247010 / 2980
1999 Benzene MR 6 SDWIS / CO0247010 / 2990
1999 Ethylbenzene MR 6 SDWIS / CO0247010 / 2992
1999 Toluene MR 6 SDWIS / CO0247010 / 2991
1999 Trichloroethylene MR 6 SDWIS / CO0247010 / 2984

How River-Dale Ranch Compares

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

Metric River-Dale Ranch Colorado avg Federal benchmark
Total violations 305 108.9 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 48 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 83 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 River-Dale Ranch water safe to drink? ▼
River-Dale Ranch (PWS ID: CO0247010) has 305 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 83 people using Surface Water sources.
How many people does River-Dale Ranch serve? ▼
River-Dale Ranch serves 83 people in Morrison, Colorado. It is a Private-owned system using Surface Water water sources with 26 service connections.
What type of violations does River-Dale Ranch have? ▼
River-Dale Ranch has 305 total violations: 48 health-based violations (MCL exceedances or treatment failures), 237 monitoring/reporting violations, and 39 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in River-Dale Ranch water? ▼
No PFAS testing data is available for River-Dale Ranch under the EPA's UCMR5 monitoring program.
What water source does River-Dale Ranch use? ▼
River-Dale Ranch 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.