Public water system · CA4800807

Active

Self-Serve Petroleum

At a glance

Self-Serve Petroleum (PWSID CA4800807) is an active transient non-community water system in Solano County, California. It reports serving 1,210 people through 1 service connection. Its primary water source is groundwater, and EPA lists it as privately owned. EPA's records list 11 violations for this system; 2 are health-based, and the most recent began in April 2016.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

1,210

Service connections

Primary source

Groundwater

System type

TNCWS

Transient non-community water system

System record

PWSIDCA4800807

System typeTransient non-community water system

Activity statusActive

Population served1,210

Service connections1

Primary water sourceGroundwater

Owner typePrivate

Primacy agencyCA state drinking water program

City served—

StateCalifornia

ZIP—

CountySolano County

How does Self-Serve Petroleum compare with other water systems in Solano County?

By EPA's size categories, Self-Serve Petroleum is a small system (501 to 3,300 people). Solano County has 63 active public water systems. Its population served is well below the county average of 7,509 people per system, and accounts for 0.3% of the 473,083 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 Self-Serve Petroleum is about 8.4 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. 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 Self-Serve Petroleum?

EPA lists Self-Serve Petroleum 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. 40 of the 63 active systems in Solano County (63%) are also privately owned.

Does Self-Serve Petroleum have drinking water violations?

EPA's records list 11 violations for this system; 2 are health-based, and the most recent began in April 2016. The violations listed here began between October 1997 and April 2016. By type: 7 monitoring and reporting, 2 contaminant level above the legal limit and 2 public notice, recordkeeping or other. The contaminant or rule involved most often is Nitrate (5 of them). EPA lists 11 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
2016-04-01	Monitoring and reportingMonitoring, Regular · code 03	Nitratecode 1040	No	Resolved
2016-04-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01	Nitratecode 1040	Yes	Resolved
2016-03-24	Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75	Public Noticecode 7500	No	Resolved
2016-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Single Sample · code 01	Nitratecode 1040	Yes	Resolved
1998-05-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
1998-04-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
1998-04-01	Public notice, recordkeeping or otherVariance/Exemption/Other Compliance · code 08	Not reported	No	Resolved
1998-03-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
1998-01-01	Monitoring and reportingMonitoring, Check/Repeat/Confirmation · code 04	Nitratecode 1040	No	Resolved
1998-01-01	Monitoring and reportingMonitoring, Regular · code 03	Nitratecode 1040	No	Resolved
1997-10-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved

All 11 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.

Self-Serve Petroleum: frequently asked questions

Who runs Self-Serve Petroleum?

Self-Serve Petroleum (PWSID CA4800807) is a transient non-community water system privately owned. It is regulated by the CA state drinking water program.

How many people does Self-Serve Petroleum serve?

Self-Serve Petroleum reports serving 1,210 people through 1 service connection in Solano County, California.

Where does Self-Serve Petroleum 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 Self-Serve Petroleum have any drinking water violations?

EPA's records list 11 violations for this system; 2 are health-based, and the most recent began in April 2016. 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 Self-Serve Petroleum'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 11 violations for this system; 2 are health-based, and the most recent began in April 2016. For current results, consult EPA ECHO, or the CA state drinking water program.

Where can I find Self-Serve Petroleum's water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Self-Serve Petroleum 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 Solano County

Water system	County	Population served	Type	Source
City of Vallejo	Solano	121,420	Community	Surface water
City of Fairfield	Solano	120,377	Community	Surface water
City of Vacaville	Solano	99,650	Community	Surface water
Suisun-Solano Water Authority	Solano	29,105	Community	Surface water
City of Benicia	Solano	27,131	Community	Surface water
California Water Service Co.-Travis Afb	Solano	18,111	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, “Self-Serve Petroleum, PWSID CA4800807, California”, https://aquacensus.com/water-systems/california/self-serve-petroleum-ca4800807 (data as of October 1, 2026).