Public water system · CA1510802
ActiveKern Valley State Prison
At a glance
Kern Valley State Prison (PWSID CA1510802) is an active community water system in Kern County, California. It reports serving 5,000 people through 2,248 service connections. Its primary water source is groundwater, and EPA lists it as owned by a state government. Of the 12 most recent violations in EPA's records, 9 are health-based, and the most recent began in October 2017.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
5,000
Service connections
2,248
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Kern Valley State Prison compare with other water systems in Kern County?
By EPA's size categories, Kern Valley State Prison is a medium system (3,301 to 10,000 people). Kern County has 327 active public water systems. Its population served is about 59% above the county average of 3,140 people per system, and accounts for 0.5% of the 1,026,649 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 Kern Valley State Prison is about 25% 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 Kern Valley State Prison?
EPA lists Kern Valley State Prison as owned by a state 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. 8 of the 327 active systems in Kern County (2.4%) are also owned by a state government.
Does Kern Valley State Prison have drinking water violations?
Of the 12 most recent violations in EPA's records, 9 are health-based, and the most recent began in October 2017. The violations listed here began between October 2010 and October 2017. By type: 9 contaminant level above the legal limit and 3 monitoring and reporting. The contaminant or rule involved most often is Arsenic (9 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 |
|---|---|---|---|---|
| 2017-10-01 | Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2015-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2015-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2012-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | Resolved |
| 2012-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | Resolved |
| 2012-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | Resolved |
| 2012-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | Resolved |
| 2011-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | Resolved |
| 2011-07-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | Resolved |
| 2011-04-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | Resolved |
| 2011-01-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | Resolved |
| 2010-10-01 | Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02 | Arseniccode 1005 | Yes | 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.
Kern Valley State Prison: frequently asked questions
Who runs Kern Valley State Prison?
Kern Valley State Prison (PWSID CA1510802) is a community water system owned by a state government. It is regulated by the CA state drinking water program.
How many people does Kern Valley State Prison serve?
Kern Valley State Prison reports serving 5,000 people through 2,248 service connections in Kern County, California.
Where does Kern Valley State Prison 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 Kern Valley State Prison have any drinking water violations?
Of the 12 most recent violations in EPA's records, 9 are health-based, and the most recent began in October 2017. 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 Kern Valley State Prison'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, 9 are health-based, and the most recent began in October 2017. For current results, consult the system's annual water quality report, EPA ECHO, or the CA state drinking water program.
Where can I find Kern Valley State Prison's water quality report?
As a community water system, Kern Valley State Prison 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 Kern County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Cws - Bakersfield | Kern | 267,881 | Community | Surface water |
| Bakersfield, City of | Kern | 160,144 | Community | Purchased surface water |
| Delano, City of | Kern | 51,428 | Community | Groundwater |
| Oildale Mwc | Kern | 44,899 | Community | Purchased surface water |
| Indian Wells Valley W.D. | Kern | 41,580 | Community | Groundwater |
| Tejon Castac Wd - I5 & Laval Rd | Kern | 38,125 | 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, “Kern Valley State Prison, PWSID CA1510802, California”, https://aquacensus.com/water-systems/california/kern-valley-state-prison-ca1510802 (data as of October 1, 2026).