Public water system · CA4500210
ActiveLassen Pines Mutual Water Co Inc.
At a glance
Lassen Pines Mutual Water Co Inc. (PWSID CA4500210) is an active community water system in Shasta County, California. It reports serving 475 people through 198 service connections. Its primary water source is groundwater under influence of surface water, and EPA lists it as privately owned. EPA's records list 6 violations for this system; 1 is health-based, and the most recent began in October 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
475
Service connections
198
Primary source
GU
Groundwater under influence of surface water
System type
CWS
Community water system
System record
How does Lassen Pines Mutual Water Co Inc. compare with other water systems in Shasta County?
By EPA's size categories, Lassen Pines Mutual Water Co Inc. is a very small system (500 people or fewer). Shasta County has 174 active public water systems. Its population served is about 61% below the county average of 1,208 people per system, and accounts for 0.2% of the 210,209 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 Lassen Pines Mutual Water Co Inc. 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 under the influence of surface water is well or spring water that the regulator has found to be affected by nearby surface water, so it is regulated under the surface-water treatment rules. 105 California systems (1.4%) list groundwater under influence of surface water as their primary source.
Who owns and regulates Lassen Pines Mutual Water Co Inc.?
EPA lists Lassen Pines Mutual Water Co Inc. 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. 117 of the 174 active systems in Shasta County (67%) are also privately owned.
Does Lassen Pines Mutual Water Co Inc. have drinking water violations?
EPA's records list 6 violations for this system; 1 is health-based, and the most recent began in October 2024. The violations listed here began between October 1981 and October 2024. By type: 3 public notice, recordkeeping or other, 1 reporting, 1 required treatment not met and 1 monitoring and reporting. The contaminant or rule involved most often is Lead and Copper Rule Revisions (2 of them). EPA lists 4 as archived and 2 as unaddressed. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2024-10-17 | ReportingLSL Reporting · code 4G | Lead and Copper Rule Revisionscode 5200 | No | Unaddressed |
| 2024-10-17 | Required treatment not metLSL Inventory · code 2E | Lead and Copper Rule Revisionscode 5200 | Yes | Unaddressed |
| 1984-07-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1982-11-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1982-10-01 | Public notice, recordkeeping or otherNotification, Public · code 06 | Not reported | No | Archived |
| 1981-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
All 6 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.
Lassen Pines Mutual Water Co Inc.: frequently asked questions
Who runs Lassen Pines Mutual Water Co Inc.?
Lassen Pines Mutual Water Co Inc. (PWSID CA4500210) is a community water system privately owned. It is regulated by the CA state drinking water program.
How many people does Lassen Pines Mutual Water Co Inc. serve?
Lassen Pines Mutual Water Co Inc. reports serving 475 people through 198 service connections in Shasta County, California.
Where does Lassen Pines Mutual Water Co Inc. get its water?
EPA SDWIS lists this system's primary water source as groundwater under influence of surface water. Groundwater under the influence of surface water is well or spring water that the regulator has found to be affected by nearby surface water, so it is regulated under the surface-water treatment rules.
Does Lassen Pines Mutual Water Co Inc. have any drinking water violations?
EPA's records list 6 violations for this system; 1 is health-based, and the most recent began in October 2024. 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 Lassen Pines Mutual Water Co Inc.'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 6 violations for this system; 1 is health-based, and the most recent began in October 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find Lassen Pines Mutual Water Co Inc.'s water quality report?
As a community water system, Lassen Pines Mutual Water Co Inc. 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 Shasta County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Redding | Shasta | 89,628 | Community | Surface water |
| Bella Vista Water District | Shasta | 18,612 | Community | Surface water |
| City of Anderson | Shasta | 11,147 | Community | Groundwater |
| City of Shasta Lake | Shasta | 10,657 | Community | Surface water |
| Shasta District Fair | Shasta | 10,200 | Transient non-community | Groundwater |
| Clear Creek Csd-Anderson | Shasta | 8,900 | Community | 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, “Lassen Pines Mutual Water Co Inc., PWSID CA4500210, California”, https://aquacensus.com/water-systems/california/lassen-pines-mutual-water-co-inc-ca4500210 (data as of October 1, 2026).