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INTERSTATE 5 UTILITY COMPANY

PWS ID: CA1500491 · BAKERSFIELD, California 93313

INTERSTATE 5 UTILITY COMPANY serves 2,100 people in BAKERSFIELD, California using Groundwater water sources. It has 35 recorded EPA violations, including 10 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: INTERSTATE 5 UTILITY COMPANY

INTERSTATE 5 UTILITY COMPANY is a private-owned non-transient non-community water system that delivers drinking water to 2,100 residents in BAKERSFIELD, California (Kern County) through 20 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 35 total violations for this system , of which 10 (29%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 24 monitoring and reporting violations are on file. The most recent violation on record dates to 2016.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 12 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

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. INTERSTATE 5 UTILITY COMPANY's 35 violations sit above 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.

Population Served
2,100
Total Violations
35
Health-Based Violations
10
Water Source
Groundwater

System Details

System Type
Non-Transient Non-Community
Owner Type
Private
Connections
20
County
Kern
School/Daycare
No
MCL Violations
10
Monitoring Violations
24
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 12 2013
Coliform (TCR) MCL 10 2015
Lead and Copper Rule MR 6 2015
Nitrate MR 2 2016
TTHM MR 2 2015
Total Haloacetic Acids (HAA5) MR 2 2015

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 INTERSTATE 5 UTILITY COMPANY.

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 CA1500491 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 INTERSTATE 5 UTILITY COMPANY 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
2016 Nitrate MR 2 SDWIS / CA1500491 / 1040
2015 Coliform (TCR) MCL 10 SDWIS / CA1500491 / 3100
2015 Lead and Copper Rule MR 6 SDWIS / CA1500491 / 5000
2015 TTHM MR 2 SDWIS / CA1500491 / 2950
2015 Total Haloacetic Acids (HAA5) MR 2 SDWIS / CA1500491 / 2456
2013 Coliform (TCR) MR 12 SDWIS / CA1500491 / 3100

How INTERSTATE 5 UTILITY COMPANY Compares

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

Metric INTERSTATE 5 UTILITY COMPANY California avg Federal benchmark
Total violations 35 21.1 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 10 8.8 Indicates a contaminant exceeded a federal MCL
PFAS detection None 64.4% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 2,100 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 INTERSTATE 5 UTILITY COMPANY water safe to drink?
INTERSTATE 5 UTILITY COMPANY (PWS ID: CA1500491) has 35 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 2,100 people using Groundwater sources.
How many people does INTERSTATE 5 UTILITY COMPANY serve?
INTERSTATE 5 UTILITY COMPANY serves 2,100 people in BAKERSFIELD, California. It is a Private-owned system using Groundwater water sources with 20 service connections.
What type of violations does INTERSTATE 5 UTILITY COMPANY have?
INTERSTATE 5 UTILITY COMPANY has 35 total violations: 10 health-based violations (MCL exceedances or treatment failures), 24 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in INTERSTATE 5 UTILITY COMPANY water?
No PFAS testing data is available for INTERSTATE 5 UTILITY COMPANY under the EPA's UCMR5 monitoring program.
What water source does INTERSTATE 5 UTILITY COMPANY use?
INTERSTATE 5 UTILITY COMPANY uses Groundwater as its primary water source. It is classified as a Non-Transient Non-Community Water System, serving the same people for at least 6 months per year.
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

Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Related

Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial