Public water system · CA3301902

Active

Lake Fulmor - Usfs

At a glance

Lake Fulmor - Usfs (PWSID CA3301902) is an active transient non-community water system in Riverside County, California. It reports serving 125 people through 2 service connections. Its primary water source is groundwater, and EPA lists it as owned by the federal government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in April 2016.

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

Population served

125

Service connections

Primary source

Groundwater

System type

TNCWS

Transient non-community water system

System record

PWSIDCA3301902

System typeTransient non-community water system

Activity statusActive

Population served125

Service connections2

Primary water sourceGroundwater

Owner typeFederal government

Primacy agencyCA state drinking water program

City served—

StateCalifornia

ZIP—

CountyRiverside County

How does Lake Fulmor - Usfs compare with other water systems in Riverside County?

By EPA's size categories, Lake Fulmor - Usfs is a very small system (500 people or fewer). Riverside County has 197 active public water systems. Its population served is well below the county average of 14,435 people per system, and accounts for less than 0.1% of the 2,843,721 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 Lake Fulmor - Usfs is about 13% 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 Lake Fulmor - Usfs?

EPA lists Lake Fulmor - Usfs 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. 11 of the 197 active systems in Riverside County (5.6%) are also owned by the federal government.

Does Lake Fulmor - Usfs have drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in April 2016. The violations listed here began between June 2000 and April 2016. By type: 11 monitoring and reporting and 1 monitoring. The contaminant or rule involved most often is Total coliform bacteria (TCR) (11 of them). EPA lists 12 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	MonitoringMonitoring, Routine (RTCR) · code 3A	Revised Total Coliform Rulecode 8000	No	Resolved
2004-05-01	Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26	Total coliform bacteria (TCR)code 3100	No	Resolved
2004-03-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2003-12-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2002-09-01	Monitoring and reportingMonitoring, Repeat Major (TCR) · code 25	Total coliform bacteria (TCR)code 3100	No	Resolved
2001-08-01	Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26	Total coliform bacteria (TCR)code 3100	No	Resolved
2001-07-01	Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26	Total coliform bacteria (TCR)code 3100	No	Resolved
2001-06-01	Monitoring and reportingMonitoring, Routine Major (TCR) · code 23	Total coliform bacteria (TCR)code 3100	No	Resolved
2001-03-01	Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26	Total coliform bacteria (TCR)code 3100	No	Resolved
2001-02-01	Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26	Total coliform bacteria (TCR)code 3100	No	Resolved
2000-11-01	Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26	Total coliform bacteria (TCR)code 3100	No	Resolved
2000-06-01	Monitoring and reportingMonitoring, Repeat Minor (TCR) · code 26	Total coliform bacteria (TCR)code 3100	No	Resolved

The 12 most recent 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.

Lake Fulmor - Usfs: frequently asked questions

Who runs Lake Fulmor - Usfs?

Lake Fulmor - Usfs (PWSID CA3301902) 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 Lake Fulmor - Usfs serve?

Lake Fulmor - Usfs reports serving 125 people through 2 service connections in Riverside County, California.

Where does Lake Fulmor - Usfs 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 Lake Fulmor - Usfs have any drinking water violations?

Of the 12 most recent violations in EPA's records, none is 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 Lake Fulmor - Usfs' 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. Of the 12 most recent violations in EPA's records, none is 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 Lake Fulmor - Usfs' water quality report?

The annual Consumer Confidence Report requirement applies to community water systems. Lake Fulmor - Usfs 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 Riverside County

Water system	County	Population served	Type	Source
Eastern Municipal Wd	Riverside	666,581	Community	Purchased surface water
Riverside, City of	Riverside	298,398	Community	Groundwater under influence of surface water
Coachella Vwd: Cove Community	Riverside	270,000	Community	Groundwater
Elsinore Valley Mwd	Riverside	169,455	Community	Surface water
Corona, City of	Riverside	168,575	Community	Purchased surface water
Rancho California Water District	Riverside	146,147	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, “Lake Fulmor - Usfs, PWSID CA3301902, California”, https://aquacensus.com/water-systems/california/lake-fulmor-usfs-ca3301902 (data as of October 1, 2026).