Public water system · CA0500109
ActiveSender'S Market
At a glance
Sender'S Market (PWSID CA0500109) is an active transient non-community water system in Calaveras County, California. It reports serving 50 people through 1 service connection. Its primary water source is groundwater, 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
50
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Sender'S Market compare with other water systems in Calaveras County?
By EPA's size categories, Sender'S Market is a very small system (500 people or fewer). Calaveras County has 51 active public water systems. Its population served is well below the county average of 1,102 people per system, and accounts for less than 0.1% of the 56,208 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 Sender'S Market is about 65% 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 Sender'S Market?
EPA lists Sender'S Market 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. 34 of the 51 active systems in Calaveras County (67%) are also privately owned.
Does Sender'S Market 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 Sender'S Market. For the latest compliance status, check EPA ECHO for current compliance history.
Sender'S Market: frequently asked questions
Who runs Sender'S Market?
Sender'S Market (PWSID CA0500109) is a transient non-community water system privately owned. It is regulated by the CA state drinking water program.
How many people does Sender'S Market serve?
Sender'S Market reports serving 50 people through 1 service connection in Calaveras County, California.
Where does Sender'S Market 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 Sender'S Market have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Sender'S Market'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 Sender'S Market's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Sender'S Market 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 Calaveras County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Ccwd - Ebbetts Pass | Calaveras | 11,545 | Community | Surface water |
| Ccwd - Jenny Lind | Calaveras | 9,861 | Community | Surface water |
| Calaveras PUD | Calaveras | 6,286 | Community | Surface water |
| Ccwd - Copper Cove | Calaveras | 5,187 | Community | Surface water |
| Blue Lake Springs Mut Wtr | Calaveras | 4,841 | Community | Purchased surface water |
| Union Public Utility District | Calaveras | 4,774 | 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, “Sender'S Market, PWSID CA0500109, California”, https://aquacensus.com/water-systems/california/sender-s-market-ca0500109 (data as of October 1, 2026).