Public water system · CA1805007
ActiveHerlong Public Utility District
At a glance
Herlong Public Utility District (PWSID CA1805007) is an active community water system in Lassen County, California. It reports serving 2,114 people through 297 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list one violation for this system; it is not health-based, and the most recent began in October 2019.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
2,114
Service connections
297
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Herlong Public Utility District compare with other water systems in Lassen County?
By EPA's size categories, Herlong Public Utility District is a small system (501 to 3,300 people). Lassen County has 51 active public water systems, and Herlong Public Utility District is the 3rd-largest of them by population served. Its population served is about 4.4 times the county average of 476 people per system, and accounts for 8.7% of the 24,257 people reported by systems filed under the county. Across California, the 7,479 active systems average 5,706 people each. Nationally, the average active community water system reports serving 6,703 people, so Herlong Public Utility District is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. California has 2,997 active 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 Herlong Public Utility District?
EPA lists Herlong Public Utility District as owned by a local 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. 15 of the 51 active systems in Lassen County (29%) are also owned by a local government.
Does Herlong Public Utility District have drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in October 2019. By type: 1 monitoring and reporting. The contaminant or rule involved is Lead and Copper Rule. EPA lists 1 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 |
|---|---|---|---|---|
| 2019-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
The one violation in EPA's records.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.
Herlong Public Utility District: frequently asked questions
Who runs Herlong Public Utility District?
Herlong Public Utility District (PWSID CA1805007) is a community water system owned by a local government. It is regulated by the CA state drinking water program.
How many people does Herlong Public Utility District serve?
Herlong Public Utility District reports serving 2,114 people through 297 service connections in Lassen County, California.
Where does Herlong Public Utility District 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 Herlong Public Utility District have any drinking water violations?
EPA's records list one violation for this system; it is not health-based, and the most recent began in October 2019. 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 Herlong Public Utility District'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 one violation for this system; it is not health-based, and the most recent began in October 2019. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find Herlong Public Utility District's water quality report?
As a community water system, Herlong Public Utility District must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Lassen County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Susanville | Lassen | 7,811 | Community | Groundwater |
| Cdcr-High Desert State Prison | Lassen | 3,857 | Community | Groundwater |
| Westwood C.S.D. | Lassen | 1,662 | Community | Groundwater |
| Lassen Community College Dist. | Lassen | 1,380 | Non-transient non-community | Groundwater |
| Sierra Army Depot | Lassen | 1,200 | Non-transient non-community | Groundwater |
| Leavitt Lake Csd | Lassen | 950 | Community | Groundwater |
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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, “Herlong Public Utility District, PWSID CA1805007, California”, https://aquacensus.com/water-systems/california/herlong-public-utility-district-ca1805007 (data as of October 1, 2026).