Public water system · CO0101140
ActiveSouth Adams County Wsd
At a glance
South Adams County Wsd (PWSID CO0101140) is an active community water system in Adams County, Colorado. It reports serving 75,559 people through 24,754 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
75,559
Service connections
24,754
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does South Adams County Wsd compare with other water systems in Adams County?
By EPA's size categories, South Adams County Wsd is a large system (10,001 to 100,000 people). Adams County has 82 active public water systems, and South Adams County Wsd is the 3rd-largest of them by population served. Its population served is about 8.7 times the county average of 8,669 people per system, and accounts for 11% 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 community water system reports serving 6,703 people, so South Adams County Wsd is about 11 times 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 South Adams County Wsd?
EPA lists South Adams County Wsd 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. 19 of the 82 active systems in Adams County (23%) are also owned by a local government.
Does South Adams County Wsd have drinking water violations?
No SDWA violations on record.
EPA's SDWA violation and enforcement data (via EPA ECHO, updated quarterly) lists no violations for South Adams County Wsd. For the latest compliance status, check EPA ECHO for current compliance history.
South Adams County Wsd: frequently asked questions
Who runs South Adams County Wsd?
South Adams County Wsd (PWSID CO0101140) is a community water system owned by a local government. It is regulated by the CO state drinking water program.
How many people does South Adams County Wsd serve?
South Adams County Wsd reports serving 75,559 people through 24,754 service connections in Adams County, Colorado.
Where does South Adams County Wsd 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 South Adams County Wsd have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is South Adams County Wsd'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 Safe Drinking Water Act records list no violations for this system. For current results, consult the system's annual water quality report, EPA ECHO, or the CO state drinking water program.
Where can I find South Adams County Wsd's water quality report?
As a community water system, South Adams County Wsd 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 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 |
| 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 |
| North Washington Street Wsd | Adams | 14,500 | Community | Purchased 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, “South Adams County Wsd, PWSID CO0101140, Colorado”, https://aquacensus.com/water-systems/colorado/south-adams-county-wsd-co0101140 (data as of October 1, 2026).