Public water system · CO0159725
ActiveSwans Nest Md
At a glance
Swans Nest Md (PWSID CO0159725) is an active community water system in Summit County, Colorado. It reports serving 200 people through 39 service connections. Its primary water source is groundwater under influence of surface water, and EPA lists it as owned by a local government. EPA's records list 9 violations for this system; 1 is health-based, and the most recent began in April 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
200
Service connections
39
Primary source
GU
Groundwater under influence of surface water
System type
CWS
Community water system
System record
How does Swans Nest Md compare with other water systems in Summit County?
By EPA's size categories, Swans Nest Md is a very small system (500 people or fewer). Summit County has 42 active public water systems. Its population served is well below the county average of 2,142 people per system, and accounts for 0.2% of the 89,964 people reported by systems filed under the county. Across Colorado, the 2,207 active systems average 3,400 people each. Nationally, the average active community water system reports serving 6,703 people, so Swans Nest Md is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Colorado has 1,068 active community water systems, 48% of the state's 2,207 active systems. Groundwater under the influence of surface water is well or spring water that the regulator has found to be affected by nearby surface water, so it is regulated under the surface-water treatment rules. 166 Colorado systems (7.5%) list groundwater under influence of surface water as their primary source.
Who owns and regulates Swans Nest Md?
EPA lists Swans Nest Md as owned by a local government. 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. 15 of the 42 active systems in Summit County (36%) are also owned by a local government.
Does Swans Nest Md have drinking water violations?
EPA's records list 9 violations for this system; 1 is health-based, and the most recent began in April 2025. The violations listed here began between June 2002 and April 2025. By type: 7 monitoring and reporting, 1 public notice, recordkeeping or other and 1 contaminant level above the legal limit. The contaminant or rule involved most often is Interim Enhanced Surface Water Treatment Rule (4 of them). EPA lists 9 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2025-04-01 | Monitoring and reportingMonitoring, Source Water (LT2) · code 32 | E. colicode 3014 | No | Resolved |
| 2024-11-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2024-10-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2024-09-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2024-08-01 | Monitoring and reportingMonitoring, Turbidity (Enhanced SWTR) · code 38 | Interim Enhanced Surface Water Treatment Rulecode 0300 | No | Resolved |
| 2019-06-24 | Public notice, recordkeeping or otherPublic Notification Violation without NPDWR Violation · code 76 | Public Noticecode 7500 | No | Resolved |
| 2013-09-01 | Monitoring and reportingMonitoring of Treatment (SWTR-Filter) · code 36 | Surface Water Treatment Rulecode 0200 | No | Resolved |
| 2013-09-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2002-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
All 9 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.
Swans Nest Md: frequently asked questions
Who runs Swans Nest Md?
Swans Nest Md (PWSID CO0159725) is a community water system owned by a local government. It is regulated by the CO state drinking water program.
How many people does Swans Nest Md serve?
Swans Nest Md reports serving 200 people through 39 service connections in Summit County, Colorado.
Where does Swans Nest Md get its water?
EPA SDWIS lists this system's primary water source as groundwater under influence of surface water. Groundwater under the influence of surface water is well or spring water that the regulator has found to be affected by nearby surface water, so it is regulated under the surface-water treatment rules.
Does Swans Nest Md have any drinking water violations?
EPA's records list 9 violations for this system; 1 is health-based, and the most recent began in April 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 Swans Nest Md'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. EPA's records list 9 violations for this system; 1 is health-based, and the most recent began in April 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the CO state drinking water program.
Where can I find Swans Nest Md's water quality report?
As a community water system, Swans Nest Md must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Summit County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Breckenridge Town of | Summit | 28,315 | Community | Surface water |
| Snake River Wd | Summit | 9,900 | Community | Groundwater |
| Silverthorne Town of | Summit | 8,400 | Community | Groundwater |
| Copper Mountain Consolidated Md | Summit | 5,785 | Community | Groundwater |
| Frisco Town of | Summit | 4,495 | Community | Surface water |
| Cdot Vail Pass Ra | Summit | 3,302 | Transient non-community | Surface water |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Swans Nest Md, PWSID CO0159725, Colorado”, https://aquacensus.com/water-systems/colorado/swans-nest-md-co0159725 (data as of October 1, 2026).