PlainWater
States → California

CALIPATRIA STATE PRISON

PWS ID: CA1310800 · IMPERIAL, California 92251

CALIPATRIA STATE PRISON serves 4,800 people in IMPERIAL, California using Surface Water water sources. It has 10 recorded EPA violations, including 8 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (1 compound found).

Water Quality Snapshot: CALIPATRIA STATE PRISON

CALIPATRIA STATE PRISON is a state-owned community water system that delivers drinking water to 4,800 residents in IMPERIAL, California (Imperial County) through 1,979 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 10 total violations for this system , of which 8 (80%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 1 monitoring and reporting violations are on file. The most recent violation on record dates to 2012.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 6 violations (MCL, health-based). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 59.3 ppt. PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across California, EPA tracks 7,249 public water systems serving 42,404,883 people, with 153,308 cumulative violations and 63,983 health-based violations on record. About 89% of systems in the state carry at least one violation, and state-wide the average per system is 21.1 violations. CALIPATRIA STATE PRISON's 10 violations sit below the California average. Statewide, 447 of 694 UCMR5-tested systems have reported PFAS detections (64.4%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

PFAS Detected

1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
4,800
Total Violations
10
Health-Based Violations
8
Water Source
Surface Water

System Details

System Type
Community
Owner Type
State
Connections
1,979
County
Imperial
School/Daycare
No
MCL Violations
6
Monitoring Violations
1
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 6 2009
Surface Water Treatment Rule TT 2 2012
Mercury MR 1 2003

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 3 of 90 samples detected PFAS.

Contaminant Date Result MRL Status
PFHxS 9/10/2025 <0.003 µg/L 0.003 µg/L Not Detected
lithium 9/10/2025 59.3000 µg/L 9 µg/L Detected
PFHpA 9/10/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 9/10/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 9/10/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 9/10/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 9/10/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 9/10/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 9/10/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 9/10/2025 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 9/10/2025 <0.005 µg/L 0.005 µg/L Not Detected
NFDHA 9/10/2025 <0.02 µg/L 0.02 µg/L Not Detected
9Cl-PF3ONS 9/10/2025 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 9/10/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 9/10/2025 <0.007 µg/L 0.007 µg/L Not Detected
PFBS 9/10/2025 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 9/10/2025 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 9/10/2025 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 9/10/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFTA 9/10/2025 <0.008 µg/L 0.008 µg/L Not Detected
PFHpS 9/10/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 9/10/2025 <0.004 µg/L 0.004 µg/L Not Detected
4:2 FTS 9/10/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 9/10/2025 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 9/10/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFEESA 9/10/2025 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 9/10/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 9/10/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 9/10/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 9/10/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFPeA 6/3/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 6/3/2025 <0.003 µg/L 0.003 µg/L Not Detected
6:2 FTS 6/3/2025 <0.005 µg/L 0.005 µg/L Not Detected
PFTA 6/3/2025 <0.008 µg/L 0.008 µg/L Not Detected
PFTrDA 6/3/2025 <0.007 µg/L 0.007 µg/L Not Detected
NEtFOSAA 6/3/2025 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 6/3/2025 <0.006 µg/L 0.006 µg/L Not Detected
PFBS 6/3/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 6/3/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 6/3/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 6/3/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 6/3/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 6/3/2025 <0.004 µg/L 0.004 µg/L Not Detected
PFEESA 6/3/2025 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 6/3/2025 <0.003 µg/L 0.003 µg/L Not Detected
lithium 6/3/2025 53.6000 µg/L 9 µg/L Detected
PFUnA 6/3/2025 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 6/3/2025 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 6/3/2025 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 6/3/2025 <0.003 µg/L 0.003 µg/L Not Detected

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for CALIPATRIA STATE PRISON.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID CA1310800 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

California Drinking Water Authority

California State Water Resources Control Board — Division of Drinking Water is the primacy agency that licenses and inspects CALIPATRIA STATE PRISON under EPA-delegated authority.

Open CA regulator portal

Source: California State Water Resources Control Board — Division of Drinking Water

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2012 Surface Water Treatment Rule TT 2 SDWIS / CA1310800 / 0200
2009 Coliform (TCR) MCL 6 SDWIS / CA1310800 / 3100
2003 Mercury MR 1 SDWIS / CA1310800 / 1035

How CALIPATRIA STATE PRISON Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric CALIPATRIA STATE PRISON California avg Federal benchmark
Total violations 10 21.1 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 8 8.8 Indicates a contaminant exceeded a federal MCL
PFAS detection 1 compound 64.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 4,800 5,850 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 7,249 regulated public water systems in California.

Federal MCL reference — Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is CALIPATRIA STATE PRISON water safe to drink? ▼
CALIPATRIA STATE PRISON (PWS ID: CA1310800) has 10 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 4,800 people using Surface Water sources.
How many people does CALIPATRIA STATE PRISON serve? ▼
CALIPATRIA STATE PRISON serves 4,800 people in IMPERIAL, California. It is a State-owned system using Surface Water water sources with 1,979 service connections.
What type of violations does CALIPATRIA STATE PRISON have? ▼
CALIPATRIA STATE PRISON has 10 total violations: 8 health-based violations (MCL exceedances or treatment failures), 1 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in CALIPATRIA STATE PRISON water? ▼
Yes. UCMR5 testing detected 1 PFAS compound in CALIPATRIA STATE PRISON's water supply: lithium. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does CALIPATRIA STATE PRISON use? ▼
CALIPATRIA STATE PRISON uses Surface Water as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

Explore PlainWater

Water in California

All systems in state
All States

Water quality by state
Contaminants

PFAS & other pollutants
Guides

Understanding water quality

Related Data for California

Environmental Data → Natural Hazards → Air Quality → Healthcare Access → Climate Data →
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

Related

Browse all → | Rankings →
Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by Kiznis Studio Editorial