Public water system · CO0208678
ActiveRainbow Lake Resort
At a glance
Rainbow Lake Resort (PWSID CO0208678) is an active transient non-community water system in Chaffee County, Colorado. It reports serving 75 people through 20 service connections. Its primary water source is surface water, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in September 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
75
Service connections
20
Primary source
SW
Surface water
System type
TNCWS
Transient non-community water system
System record
How does Rainbow Lake Resort compare with other water systems in Chaffee County?
By EPA's size categories, Rainbow Lake Resort is a very small system (500 people or fewer). Chaffee County has 68 active public water systems. Its population served is well below the county average of 372 people per system, and accounts for 0.3% of the 25,274 people reported by systems filed under the county. Across Colorado, the 2,207 active systems average 3,400 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Rainbow Lake Resort is about half of that figure.
What does “transient non-community water system” mean?
A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. Colorado has 956 active transient non-community water systems, 43% of the state's 2,207 active systems. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 228 Colorado systems (10%) list surface water as their primary source.
Who owns and regulates Rainbow Lake Resort?
EPA lists Rainbow Lake Resort as privately owned. The CO state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 53 of the 68 active systems in Chaffee County (78%) are also privately owned.
Does Rainbow Lake Resort have drinking water violations?
Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in September 2025. The violations listed here began between August 2024 and September 2025. By type: 6 required treatment not met, 3 public notice, recordkeeping or other and 3 monitoring and reporting. The contaminant or rule involved most often is Surface Water Treatment Rule (8 of them). EPA lists 9 as archived and 3 as unaddressed. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-09-08 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2025-09-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Archived |
| 2025-09-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Archived |
| 2025-08-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Archived |
| 2025-07-17 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2025-07-10 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Unaddressed |
| 2025-07-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Archived |
| 2025-06-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Archived |
| 2025-06-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Archived |
| 2025-05-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Archived |
| 2024-09-01 | Required treatment not metTreatment Technique (SWTR and GWR) · code 41 | Surface Water Treatment Rulecode 0200 | Yes | Archived |
| 2024-08-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Archived |
The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Rainbow Lake Resort: frequently asked questions
Who runs Rainbow Lake Resort?
Rainbow Lake Resort (PWSID CO0208678) is a transient non-community water system privately owned. It is regulated by the CO state drinking water program.
How many people does Rainbow Lake Resort serve?
Rainbow Lake Resort reports serving 75 people through 20 service connections in Chaffee County, Colorado.
Where does Rainbow Lake Resort get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Rainbow Lake Resort have any drinking water violations?
Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in September 2025. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Rainbow Lake Resort's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, 6 are health-based, and the most recent began in September 2025. For current results, consult EPA ECHO, or the CO state drinking water program.
Where can I find Rainbow Lake Resort's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Rainbow Lake Resort is a transient non-community water system, so it is not required to publish one; like every public water system, it must notify the people it serves about violations under EPA's public notification rules.
Other water systems in Chaffee County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Salida City of | Chaffee | 5,666 | Community | Surface water |
| Buena Vista Town of | Chaffee | 3,776 | Community | Groundwater under influence of surface water |
| Monarch Ski Area | Chaffee | 2,500 | Transient non-community | Groundwater |
| Poncha Springs Town of | Chaffee | 2,118 | Community | Groundwater |
| Buena Vista Correctional Facility | Chaffee | 1,700 | Community | Groundwater |
| Noahs Ark Adventure Company | Chaffee | 506 | Transient non-community | Groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Rainbow Lake Resort, PWSID CO0208678, Colorado”, https://aquacensus.com/water-systems/colorado/rainbow-lake-resort-co0208678 (data as of October 1, 2026).