Public water system · CA1800503
ActiveSusan River Park Water Co.
At a glance
Susan River Park Water Co. (PWSID CA1800503) is an active community water system in Lassen County, California. It reports serving 140 people through 50 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, 10 are health-based, and the most recent began in November 2010.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
140
Service connections
50
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Susan River Park Water Co. compare with other water systems in Lassen County?
By EPA's size categories, Susan River Park Water Co. is a very small system (500 people or fewer). Lassen County has 51 active public water systems. Its population served is well below the county average of 476 people per system, and accounts for 0.6% 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 Susan River Park Water Co. 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 Susan River Park Water Co.?
EPA lists Susan River Park Water Co. 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. 29 of the 51 active systems in Lassen County (57%) are also privately owned.
Does Susan River Park Water Co. have drinking water violations?
Of the 12 most recent violations in EPA's records, 10 are health-based, and the most recent began in November 2010. The violations listed here began between July 1993 and November 2010. By type: 10 contaminant level above the legal limit and 2 monitoring and reporting. 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 |
|---|---|---|---|---|
| 2010-11-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2010-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2010-02-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2010-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2009-12-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2009-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2009-06-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2003-04-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2003-03-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2003-02-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2002-12-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 1993-07-01 | Monitoring and reportingInitial Tap Sampling for Pb and Cu · code 51 | Lead and Copper Rulecode 5000 | 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.
Susan River Park Water Co.: frequently asked questions
Who runs Susan River Park Water Co.?
Susan River Park Water Co. (PWSID CA1800503) is a community water system privately owned. It is regulated by the CA state drinking water program.
How many people does Susan River Park Water Co. serve?
Susan River Park Water Co. reports serving 140 people through 50 service connections in Lassen County, California.
Where does Susan River Park Water Co. 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 Susan River Park Water Co. have any drinking water violations?
Of the 12 most recent violations in EPA's records, 10 are health-based, and the most recent began in November 2010. 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 Susan River Park Water Co.'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. Of the 12 most recent violations in EPA's records, 10 are health-based, and the most recent began in November 2010. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find Susan River Park Water Co.'s water quality report?
As a community water system, Susan River Park Water Co. 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 |
| Herlong Public Utility District | Lassen | 2,114 | 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 |
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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, “Susan River Park Water Co., PWSID CA1800503, California”, https://aquacensus.com/water-systems/california/susan-river-park-water-co-ca1800503 (data as of October 1, 2026).