Public water system · CA0202564
ActiveSand Flat # 3
At a glance
Sand Flat # 3 (PWSID CA0202564) is an active transient non-community water system in Alpine County, California. It reports serving 25 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as owned by the federal government. EPA's Safe Drinking Water Act records list no violations for this system.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
25
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Sand Flat # 3 compare with other water systems in Alpine County?
By EPA's size categories, Sand Flat # 3 is a very small system (500 people or fewer). Alpine County has 35 active public water systems. Its population served is well below the county average of 419 people per system, and accounts for 0.2% of the 14,677 people reported by systems filed under the county. Across California, the 7,479 active systems average 5,706 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Sand Flat # 3 is well below 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. California has 3,016 active transient non-community water systems, 40% of the state's 7,479 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 6,179 California systems (83%) list groundwater as their primary source.
Who owns and regulates Sand Flat # 3?
EPA lists Sand Flat # 3 as owned by the federal government. 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. 10 of the 35 active systems in Alpine County (29%) are also owned by the federal government.
Does Sand Flat # 3 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 Sand Flat # 3. For the latest compliance status, check EPA ECHO for current compliance history.
Sand Flat # 3: frequently asked questions
Who runs Sand Flat # 3?
Sand Flat # 3 (PWSID CA0202564) is a transient non-community water system owned by the federal government. It is regulated by the CA state drinking water program.
How many people does Sand Flat # 3 serve?
Sand Flat # 3 reports serving 25 people through 1 service connection in Alpine County, California.
Where does Sand Flat # 3 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 Sand Flat # 3 have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Sand Flat # 3'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 EPA ECHO, or the CA state drinking water program.
Where can I find Sand Flat # 3's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Sand Flat # 3 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 Alpine County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Kirkwood Meadows Public Utility District | Alpine | 7,851 | Community | Groundwater |
| Bear Valley Mountain Resort | Alpine | 3,500 | Transient non-community | Groundwater |
| Ca State Parks - Grover Hot Springs | Alpine | 1,002 | Transient non-community | Surface water |
| Lake Alpine Water Company | Alpine | 625 | Community | Surface water |
| Kirkwood Sunrise Grill | Alpine | 500 | Transient non-community | Groundwater |
| Markleeville Water Co. | Alpine | 175 | 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, “Sand Flat # 3, PWSID CA0202564, California”, https://aquacensus.com/water-systems/california/sand-flat-3-ca0202564 (data as of October 1, 2026).