Public water system · CA2300878
ActiveTesoro 68137
At a glance
Tesoro 68137 (PWSID CA2300878) is an active transient non-community water system in Mendocino County, Texas. It reports serving 508 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
508
Service connections
1
Primary source
GW
Groundwater
System type
TNCWS
Transient non-community water system
System record
How does Tesoro 68137 compare with other water systems in Mendocino County?
By EPA's size categories, Tesoro 68137 is a small system (501 to 3,300 people). Mendocino County has 1 active public water system, and Tesoro 68137 is the largest of them by population served. Its population served is roughly in line with the county average of 508 people per system, and accounts for 100% of the 508 people reported by systems filed under the county. Across Texas, the 7,078 active systems average 4,789 people each. Nationally, the average active transient non-community water system reports serving 144 people, so Tesoro 68137 is about 3.5 times 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. Texas has 1,622 active transient non-community water systems, 23% of the state's 7,078 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 5,215 Texas systems (74%) list groundwater as their primary source.
Who owns and regulates Tesoro 68137?
EPA lists Tesoro 68137 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. 1 of the 1 active systems in Mendocino County (100%) are also privately owned.
Does Tesoro 68137 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 Tesoro 68137. For the latest compliance status, check EPA ECHO for current compliance history.
Tesoro 68137: frequently asked questions
Who runs Tesoro 68137?
Tesoro 68137 (PWSID CA2300878) is a transient non-community water system privately owned. It is regulated by the CA state drinking water program.
How many people does Tesoro 68137 serve?
Tesoro 68137 reports serving 508 people through 1 service connection in Mendocino County, Texas.
Where does Tesoro 68137 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 Tesoro 68137 have any drinking water violations?
EPA's Safe Drinking Water Act records list no violations for this system.
Is Tesoro 68137'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 Tesoro 68137's water quality report?
The annual Consumer Confidence Report requirement applies to community water systems. Tesoro 68137 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.
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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, “Tesoro 68137, PWSID CA2300878, Texas”, https://aquacensus.com/water-systems/texas/tesoro-68137-ca2300878 (data as of October 1, 2026).