Public water system · CO0118724
ActiveSterling Ranch Cab
At a glance
Sterling Ranch Cab (PWSID CO0118724) is an active community water system in Douglas County, Colorado. It reports serving 11,501 people through 3,800 service connections. Its primary water source is purchased surface water, and EPA lists it as privately owned. EPA's records list 2 violations for this system; none is health-based, and the most recent began in January 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
11,501
Service connections
3,800
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Sterling Ranch Cab compare with other water systems in Douglas County?
By EPA's size categories, Sterling Ranch Cab is a large system (10,001 to 100,000 people). Douglas County has 74 active public water systems. Its population served is about twice the county average of 5,694 people per system, and accounts for 2.7% of the 421,335 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 Sterling Ranch Cab is about 72% above 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. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 337 Colorado systems (15%) list purchased surface water as their primary source.
Who owns and regulates Sterling Ranch Cab?
EPA lists Sterling Ranch Cab 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. 45 of the 74 active systems in Douglas County (61%) are also privately owned.
Does Sterling Ranch Cab have drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in January 2024. The violations listed here began between January 2024 and January 2024. By type: 2 monitoring and reporting. The contaminants or rules involved are Haloacetic acids (HAA5) and Total trihalomethanes (TTHM). EPA lists 2 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 |
|---|---|---|---|---|
| 2024-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2024-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
All 2 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.
Sterling Ranch Cab: frequently asked questions
Who runs Sterling Ranch Cab?
Sterling Ranch Cab (PWSID CO0118724) is a community water system privately owned. It is regulated by the CO state drinking water program.
How many people does Sterling Ranch Cab serve?
Sterling Ranch Cab reports serving 11,501 people through 3,800 service connections in Douglas County, Colorado.
Where does Sterling Ranch Cab get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Sterling Ranch Cab have any drinking water violations?
EPA's records list 2 violations for this system; none is health-based, and the most recent began in January 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 Sterling Ranch Cab'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 2 violations for this system; none is health-based, and the most recent began in January 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the CO state drinking water program.
Where can I find Sterling Ranch Cab's water quality report?
As a community water system, Sterling Ranch Cab 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 Douglas County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Castle Rock Town of | Douglas | 110,298 | Community | Surface water |
| Highlands Ranch Wsd | Douglas | 103,444 | Community | Surface water |
| Parker Wsd | Douglas | 75,949 | Community | Surface water |
| Meridian Md | Douglas | 23,415 | Community | Purchased surface water |
| Stonegate Md | Douglas | 15,295 | Community | Purchased surface water |
| Roxborough Wsd | Douglas | 13,765 | Community | Surface water |
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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, “Sterling Ranch Cab, PWSID CO0118724, Colorado”, https://aquacensus.com/water-systems/colorado/sterling-ranch-cab-co0118724 (data as of October 1, 2026).