Public water system · CO0201833
ActiveWatkins Square
At a glance
Watkins Square (PWSID CO0201833) is an active transient non-community water system in Adams County, Colorado. It reports serving 515 people through 3 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in June 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
515
Service connections
3
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Watkins Square compare with other water systems in Adams County?
By EPA's size categories, Watkins Square is a small system (501 to 3,300 people). Adams County has 82 active public water systems. Its population served is well below the county average of 8,669 people per system, and accounts for less than 0.1% of the 710,822 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 Watkins Square is about 3.6 times 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. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 1,437 Colorado systems (65%) list groundwater as their primary source.
Who owns and regulates Watkins Square?
EPA lists Watkins Square 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. 62 of the 82 active systems in Adams County (76%) are also privately owned.
Does Watkins Square have drinking water violations?
Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in June 2024. The violations listed here began between April 2011 and June 2024. By type: 6 public notice, recordkeeping or other, 4 required treatment not met and 2 monitoring and reporting. The contaminant or rule involved most often is Public Notice (6 of them). EPA lists 12 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 |
|---|---|---|---|---|
| 2024-06-20 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2024-03-20 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2023-12-20 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2023-09-20 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2023-06-20 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2023-03-20 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2022-09-09 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2022-09-09 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2022-09-09 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2022-09-09 | Required treatment not metFailure To Address Deficiency · code 45 | Groundwater Rulecode 0700 | Yes | Resolved |
| 2011-05-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2011-04-01 | Monitoring and reportingMonitoring, Routine Major (TCR) · code 23 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
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.
Watkins Square: frequently asked questions
Who runs Watkins Square?
Watkins Square (PWSID CO0201833) is a transient non-community water system privately owned. It is regulated by the CO state drinking water program.
How many people does Watkins Square serve?
Watkins Square reports serving 515 people through 3 service connections in Adams County, Colorado.
Where does Watkins Square get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Watkins Square have any drinking water violations?
Of the 12 most recent violations in EPA's records, 4 are health-based, and the most recent began in June 2024. 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 Watkins Square'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, 4 are health-based, and the most recent began in June 2024. For current results, consult EPA ECHO, or the CO state drinking water program.
Where can I find Watkins Square's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Watkins Square 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 Adams County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Thornton City of | Adams | 226,465 | Community | Surface water |
| Westminster City of | Adams | 202,078 | Community | Surface water |
| South Adams County Wsd | Adams | 75,559 | Community | Purchased surface water |
| Brighton City of | Adams | 56,304 | Community | Purchased surface water |
| Northglenn City of | Adams | 48,927 | Community | Surface water |
| Crestview Wsd | Adams | 23,756 | Community | Purchased 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, “Watkins Square, PWSID CO0201833, Colorado”, https://aquacensus.com/water-systems/colorado/watkins-square-co0201833 (data as of October 1, 2026).