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Community Water System · PWS CO0126677

Riverland Lot Owners Assoc

Crested Butte, Colorado 81224 - drinking water served from groundwater sources to 368 people, tracked in EPA SDWIS and UCMR5.

368
People served
285
EPA violations
0
Health-based
Untested
UCMR5 result

The verdict

EPA records 285 drinking-water violations at Riverland Lot Owners Assoc - above the Colorado per-system average.

285
Total EPA violations on record
0%
Health-based (MCL / treatment failure)
368
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Riverland Lot Owners Assoc

Riverland Lot Owners Assoc is a private-owned community water system that delivers drinking water to 368 residents in Crested Butte, Colorado (Gunnison County) through 83 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 285 total violations for this system , of which 0 (0%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 275 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 Lead and Copper Rule, recorded in 16 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%).

Riverland Lot Owners Assoc's 285 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
368
Total Violations
285
Health-Based Violations
0
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
83
County
Gunnison
School/Daycare
No
MCL Violations
0
Monitoring Violations
275
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 16 2025
Chlorine MR 15 2009
Nitrate MR 13 2009
Coliform (TCR) MR 13 2009
Consumer Confidence Rule Other 8 2025
Diquat MR 7 2006
TTHM MR 7 2008
Total Haloacetic Acids (HAA5) MR 7 2008
Fluoride MR 4 2005
Arsenic MR 4 2005
Barium MR 4 2005
Chromium MR 4 2005
Mercury MR 4 2005
Nickel MR 4 2005
Antimony, Total MR 4 2005
Thallium, Total MR 4 2005
Selenium MR 4 2005
Beryllium, Total MR 4 2005
Cadmium MR 4 2005
cis-1,2-Dichloroethylene MR 3 2005
Xylenes, Total MR 3 2005
DICHLOROMETHANE MR 3 2005
o-Dichlorobenzene MR 3 2005
Vinyl chloride MR 3 2005
1,1-Dichloroethylene MR 3 2005
1,1,1-Trichloroethane MR 3 2005
Carbon tetrachloride MR 3 2005
Trichloroethylene MR 3 2005
Tetrachloroethylene MR 3 2005
CHLOROBENZENE MR 3 2005

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 Riverland Lot Owners Assoc.

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 CO0126677 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 Riverland Lot Owners Assoc 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 Lead and Copper Rule MR 16 SDWIS / CO0126677 / 5000
2025 Consumer Confidence Rule Other 8 SDWIS / CO0126677 / 7000
2022 Public Notice Other 2 SDWIS / CO0126677 / 7500
2009 Chlorine MR 15 SDWIS / CO0126677 / 0999
2009 Nitrate MR 13 SDWIS / CO0126677 / 1040
2009 Coliform (TCR) MR 13 SDWIS / CO0126677 / 3100
2008 TTHM MR 7 SDWIS / CO0126677 / 2950
2008 Total Haloacetic Acids (HAA5) MR 7 SDWIS / CO0126677 / 2456
2006 Diquat MR 7 SDWIS / CO0126677 / 2032
2005 Fluoride MR 4 SDWIS / CO0126677 / 1025
2005 Arsenic MR 4 SDWIS / CO0126677 / 1005
2005 Barium MR 4 SDWIS / CO0126677 / 1010
2005 Chromium MR 4 SDWIS / CO0126677 / 1020
2005 Mercury MR 4 SDWIS / CO0126677 / 1035
2005 Nickel MR 4 SDWIS / CO0126677 / 1036

How Riverland Lot Owners Assoc Compares

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

Metric Riverland Lot Owners Assoc Colorado avg Federal benchmark
Total violations 285 108.9 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 0 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 368 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 Riverland Lot Owners Assoc water safe to drink? ▼
Riverland Lot Owners Assoc (PWS ID: CO0126677) has 285 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 368 people using Groundwater sources.
How many people does Riverland Lot Owners Assoc serve? ▼
Riverland Lot Owners Assoc serves 368 people in Crested Butte, Colorado. It is a Private-owned system using Groundwater water sources with 83 service connections.
What type of violations does Riverland Lot Owners Assoc have? ▼
Riverland Lot Owners Assoc has 285 total violations: 0 health-based violations (MCL exceedances or treatment failures), 275 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Riverland Lot Owners Assoc water? ▼
No PFAS testing data is available for Riverland Lot Owners Assoc under the EPA's UCMR5 monitoring program.
What water source does Riverland Lot Owners Assoc use? ▼
Riverland Lot Owners Assoc uses Groundwater 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.