Public water system · CA2500503
ActiveCalifornia Pines C.S.D.
At a glance
California Pines C.S.D. (PWSID CA2500503) is an active community water system in Modoc County, California. It reports serving 862 people through 175 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 10 violations for this system; 5 are health-based, and the most recent began in October 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
862
Service connections
175
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does California Pines C.S.D. compare with other water systems in Modoc County?
By EPA's size categories, California Pines C.S.D. is a small system (501 to 3,300 people). Modoc County has 16 active public water systems, and California Pines C.S.D. is the 2nd-largest of them by population served. Its population served is about 148% above the county average of 347 people per system, and accounts for 16% of the 5,554 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 California Pines C.S.D. 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 California Pines C.S.D.?
EPA lists California Pines C.S.D. 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. 4 of the 16 active systems in Modoc County (25%) are also owned by a local government.
Does California Pines C.S.D. have drinking water violations?
EPA's records list 10 violations for this system; 5 are health-based, and the most recent began in October 2024. The violations listed here began between October 1980 and October 2024. By type: 4 monitoring and reporting, 4 contaminant level above the legal limit, 1 reporting and 1 required treatment not met. The contaminant or rule involved most often is Total coliform bacteria (TCR) (5 of them). EPA lists 6 as resolved, 2 as unaddressed and 2 as archived. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement. 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.
| 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 |
| 2005-09-01 | Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24 | Total coliform bacteria (TCR)code 3100 | No | Resolved |
| 2003-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2003-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2002-09-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Monthly (TCR) · code 22 | Total coliform bacteria (TCR)code 3100 | Yes | Resolved |
| 2002-08-01 | 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 |
| 1981-10-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
| 1980-10-30 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Archived |
All 10 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.
California Pines C.S.D.: frequently asked questions
Who runs California Pines C.S.D.?
California Pines C.S.D. (PWSID CA2500503) is a community water system owned by a local government. It is regulated by the CA state drinking water program.
How many people does California Pines C.S.D. serve?
California Pines C.S.D. reports serving 862 people through 175 service connections in Modoc County, California.
Where does California Pines C.S.D. 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 California Pines C.S.D. have any drinking water violations?
EPA's records list 10 violations for this system; 5 are 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 California Pines C.S.D.'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 10 violations for this system; 5 are 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 California Pines C.S.D.'s water quality report?
As a community water system, California Pines C.S.D. 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 Modoc County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| City of Alturas | Modoc | 2,715 | Community | Groundwater |
| Newell County Water District | Modoc | 629 | Community | Groundwater |
| Cedarville County Water Dist. | Modoc | 600 | Community | Groundwater |
| Mdf-Blue Lake Cg | Modoc | 200 | Transient non-community | Groundwater |
| Cal Fire-Devil'S Garden Camp | Modoc | 120 | Non-transient non-community | Groundwater |
| Isot Community Water System | Modoc | 116 | 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, “California Pines C.S.D., PWSID CA2500503, California”, https://aquacensus.com/water-systems/california/california-pines-c-s-d-ca2500503 (data as of October 1, 2026).