Public water system · CA3410010
ActiveCal Am - Suburban Rosemont
At a glance
Cal Am - Suburban Rosemont (PWSID CA3410010) is an active community water system in Sacramento County, California. It reports serving 54,793 people through 16,604 service connections. Its primary water source is purchased surface water, and EPA lists it as privately owned. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
54,793
Service connections
16,604
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Cal Am - Suburban Rosemont compare with other water systems in Sacramento County?
By EPA's size categories, Cal Am - Suburban Rosemont is a large system (10,001 to 100,000 people). Sacramento County has 164 active public water systems, and Cal Am - Suburban Rosemont is the 6th-largest of them by population served. Its population served is about 5.3 times the county average of 10,325 people per system, and accounts for 3.2% of the 1,693,284 people reported by systems filed under the county. Across California, the 7,479 active systems average 5,706 people each. Nationally, the average active community water system reports serving 6,703 people, so Cal Am - Suburban Rosemont is about 8.2 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. California has 2,997 active community water systems, 40% of the state's 7,479 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 506 California systems (6.8%) list purchased surface water as their primary source.
Who owns and regulates Cal Am - Suburban Rosemont?
EPA lists Cal Am - Suburban Rosemont as privately owned. The CA state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 115 of the 164 active systems in Sacramento County (70%) are also privately owned.
Does Cal Am - Suburban Rosemont 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 Cal Am - Suburban Rosemont. For the latest compliance status, check EPA ECHO for current compliance history.
Cal Am - Suburban Rosemont: frequently asked questions
Who runs Cal Am - Suburban Rosemont?
Cal Am - Suburban Rosemont (PWSID CA3410010) is a community water system privately owned. It is regulated by the CA state drinking water program.
How many people does Cal Am - Suburban Rosemont serve?
Cal Am - Suburban Rosemont reports serving 54,793 people through 16,604 service connections in Sacramento County, California.
Where does Cal Am - Suburban Rosemont 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 Cal Am - Suburban Rosemont have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Cal Am - Suburban Rosemont'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 CA state drinking water program.
Where can I find Cal Am - Suburban Rosemont's water quality report?
As a community water system, Cal Am - Suburban Rosemont 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 Sacramento County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Sacramento Main | Sacramento | 527,979 | Community | Surface water |
| Sacramento Suburban Water District | Sacramento | 194,444 | Community | Purchased surface water |
| Scwa - Laguna/Vineyard | Sacramento | 184,896 | Community | Surface water |
| Folsom, City of - Main | Sacramento | 80,969 | Community | Surface water |
| Citrus Heights Water District | Sacramento | 67,818 | Community | Purchased surface water |
| Cal Am - Parkway | Sacramento | 50,573 | 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, “Cal Am - Suburban Rosemont, PWSID CA3410010, California”, https://aquacensus.com/water-systems/california/cal-am-suburban-rosemont-ca3410010 (data as of October 1, 2026).