Public water system · CA3610002
ActiveAlpine Water Users Association
At a glance
Alpine Water Users Association (PWSID CA3610002) is an active community water system in San Bernardino County, California. It reports serving 2,534 people through 950 service connections. Its primary water source is purchased surface water, and EPA lists it as privately owned. EPA's records list 3 violations for this system; all are health-based, and the most recent began in July 2011.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,534
Service connections
950
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Alpine Water Users Association compare with other water systems in San Bernardino County?
By EPA's size categories, Alpine Water Users Association is a small system (501 to 3,300 people). San Bernardino County has 306 active public water systems. Its population served is well below the county average of 9,227 people per system, and accounts for less than 0.1% of the 2,823,318 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 Alpine Water Users Association is about 62% 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. 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 Alpine Water Users Association?
EPA lists Alpine Water Users Association 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. 201 of the 306 active systems in San Bernardino County (66%) are also privately owned.
Does Alpine Water Users Association have drinking water violations?
EPA's records list 3 violations for this system; all are health-based, and the most recent began in July 2011. The violations listed here began between January 2011 and July 2011. By type: 3 contaminant level above the legal limit. The contaminant or rule involved most often is Combined Uranium (3 of them). EPA lists 3 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 |
|---|---|---|---|---|
| 2011-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Combined Uraniumcode 4006 | Yes | Resolved |
| 2011-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Combined Uraniumcode 4006 | Yes | Resolved |
| 2011-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Combined Uraniumcode 4006 | Yes | Resolved |
All 3 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.
Alpine Water Users Association: frequently asked questions
Who runs Alpine Water Users Association?
Alpine Water Users Association (PWSID CA3610002) is a community water system privately owned. It is regulated by the CA state drinking water program.
How many people does Alpine Water Users Association serve?
Alpine Water Users Association reports serving 2,534 people through 950 service connections in San Bernardino County, California.
Where does Alpine Water Users Association 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 Alpine Water Users Association have any drinking water violations?
EPA's records list 3 violations for this system; all are health-based, and the most recent began in July 2011. 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 Alpine Water Users Association'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 3 violations for this system; all are health-based, and the most recent began in July 2011. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find Alpine Water Users Association's water quality report?
As a community water system, Alpine Water Users Association 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 San Bernardino County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| San Gabriel Valley Wc - Fontana | San Bernardino | 237,700 | Community | Surface water |
| San Bernardino City | San Bernardino | 214,665 | Community | Groundwater |
| Cucamonga Valley Water District | San Bernardino | 211,069 | Community | Surface water |
| Ontario Municipal Utilities Company | San Bernardino | 185,010 | Community | Purchased surface water |
| Victorville Water District | San Bernardino | 135,983 | Community | Purchased surface water |
| San Bernardino Valley Wd | San Bernardino | 109,608 | Community | Groundwater |
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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, “Alpine Water Users Association, PWSID CA3610002, California”, https://aquacensus.com/water-systems/california/alpine-water-users-association-ca3610002 (data as of October 1, 2026).