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Community Water System · PWS CA1510001

Arvin Community Services Dist

Arvin, California 93203 - drinking water served from groundwater sources to 19,669 people, tracked in EPA SDWIS and UCMR5.

19,669
People served
331
EPA violations
219
Health-based
No PFAS
UCMR5 result

The verdict

EPA records 331 drinking-water violations at Arvin Community Services Dist, 66% of them health-based - above the California per-system average.

331
Total EPA violations on record
66%
Health-based (MCL / treatment failure)
19,669
People served by this system
0
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Arvin Community Services Dist

Arvin Community Services Dist is a local-owned community water system that delivers drinking water to 19,669 residents in Arvin, California (Kern County) through 4,349 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 331 total violations for this system , of which 219 (66%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 107 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Arsenic, recorded in 161 violations (MCL, health-based). This system was sampled under EPA's UCMR5 PFAS monitoring program and no PFAS compounds were detected above the minimum reporting level.

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. Statewide, 447 of 694 UCMR5-tested systems have reported PFAS detections (64.4%).

Arvin Community Services Dist's 331 violations sit above the California average.

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
19,669
Total Violations
331
Health-Based Violations
219
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
4,349
County
Kern
School/Daycare
No
MCL Violations
218
Monitoring Violations
107
Treatment Tech Violations
1

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Arsenic MCL 161 2019
Coliform (TCR) MCL 42 2011
Nitrate MR 12 2012
Total Haloacetic Acids (HAA5) MR 10 2013
Nitrate MCL 10 2004
Lead and Copper Rule MR 9 2021
TTHM MR 8 2011
Tetrachloroethylene MCL 5 2000
Nitrite MR 2 2002
Carbon tetrachloride MR 2 2002
Benzene MR 2 2002
CHLOROBENZENE MR 2 2002
Tetrachloroethylene MR 2 2002
Fluoride MR 2 2002
Barium MR 2 2002
1,1-Dichloroethylene MR 2 2002
Chromium MR 2 2002
1,1,1-Trichloroethane MR 2 2002
1,1,2-Trichloroethane MR 2 2002
Thallium, Total MR 2 2002
Nickel MR 2 2002
1,2-Dichloropropane MR 2 2002
1,2,4-Trichlorobenzene MR 2 2002
Selenium MR 2 2002
p-Dichlorobenzene MR 2 2002
1,2-DIBROMO-3-CHLOROPROPANE MR 2 2002
Trichloroethylene MR 2 2002
Mercury MR 2 2002
Styrene MR 2 2002
ETHYLENE DIBROMIDE MR 2 2002

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 174 samples detected PFAS.

Contaminant Date Result MRL Status
4:2 FTS 5/29/2025 <3.00 ppt 3.00 ppt Not Detected
PFBA 5/29/2025 <5.00 ppt 5.00 ppt Not Detected
PFBS 5/29/2025 <3.00 ppt 3.00 ppt Not Detected
PFHpA 5/29/2025 <3.00 ppt 3.00 ppt Not Detected
PFHxS 5/29/2025 <3.00 ppt 3.00 ppt Not Detected
PFMBA 5/29/2025 <3.00 ppt 3.00 ppt Not Detected
HFPO-DA 5/29/2025 <5.00 ppt 5.00 ppt Not Detected
PFNA 5/29/2025 <4.00 ppt 4.00 ppt Not Detected
PFHpS 5/29/2025 <3.00 ppt 3.00 ppt Not Detected
PFPeS 5/29/2025 <4.00 ppt 4.00 ppt Not Detected
PFEESA 5/29/2025 <3.00 ppt 3.00 ppt Not Detected
PFPeA 5/29/2025 <3.00 ppt 3.00 ppt Not Detected
PFMPA 5/29/2025 <4.00 ppt 4.00 ppt Not Detected
8:2 FTS 5/29/2025 <5.00 ppt 5.00 ppt Not Detected
6:2 FTS 5/29/2025 <5.00 ppt 5.00 ppt Not Detected
PFDA 5/29/2025 <3.00 ppt 3.00 ppt Not Detected
NFDHA 5/29/2025 <20.00 ppt 20.00 ppt Not Detected
ADONA 5/29/2025 <3.00 ppt 3.00 ppt Not Detected
PFOA 5/29/2025 <4.00 ppt 4.00 ppt Not Detected
PFDoA 5/29/2025 <3.00 ppt 3.00 ppt Not Detected
PFHxA 5/29/2025 <3.00 ppt 3.00 ppt Not Detected
PFUnA 5/29/2025 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 5/29/2025 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 5/29/2025 <2.00 ppt 2.00 ppt Not Detected
PFOS 5/29/2025 <4.00 ppt 4.00 ppt Not Detected
PFPeS 5/20/2025 <4.00 ppt 4.00 ppt Not Detected
PFHxS 5/20/2025 <3.00 ppt 3.00 ppt Not Detected
8:2 FTS 5/20/2025 <5.00 ppt 5.00 ppt Not Detected
PFMPA 5/20/2025 <4.00 ppt 4.00 ppt Not Detected
PFPeA 5/20/2025 <3.00 ppt 3.00 ppt Not Detected
PFMBA 5/20/2025 <3.00 ppt 3.00 ppt Not Detected
NFDHA 5/20/2025 <20.00 ppt 20.00 ppt Not Detected
6:2 FTS 5/20/2025 <5.00 ppt 5.00 ppt Not Detected
PFHpS 5/20/2025 <3.00 ppt 3.00 ppt Not Detected
PFTrDA 5/20/2025 <7.00 ppt 7.00 ppt Not Detected
PFTA 5/20/2025 <8.00 ppt 8.00 ppt Not Detected
PFHpA 5/20/2025 <3.00 ppt 3.00 ppt Not Detected
PFEESA 5/20/2025 <3.00 ppt 3.00 ppt Not Detected
PFBS 5/20/2025 <3.00 ppt 3.00 ppt Not Detected
NMeFOSAA 5/20/2025 <6.00 ppt 6.00 ppt Not Detected
PFNA 5/20/2025 <4.00 ppt 4.00 ppt Not Detected
PFOS 5/20/2025 <4.00 ppt 4.00 ppt Not Detected
PFOA 5/20/2025 <4.00 ppt 4.00 ppt Not Detected
PFDA 5/20/2025 <3.00 ppt 3.00 ppt Not Detected
4:2 FTS 5/20/2025 <3.00 ppt 3.00 ppt Not Detected
PFHxA 5/20/2025 <3.00 ppt 3.00 ppt Not Detected
NEtFOSAA 5/20/2025 <5.00 ppt 5.00 ppt Not Detected
PFUnA 5/20/2025 <2.00 ppt 2.00 ppt Not Detected
11Cl-PF3OUdS 5/20/2025 <5.00 ppt 5.00 ppt Not Detected
9Cl-PF3ONS 5/20/2025 <2.00 ppt 2.00 ppt 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 Arvin Community Services Dist.

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 CA1510001 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 Arvin Community Services Dist 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
2024 LEAD AND COPPER RULE REVISIONS TT 1 SDWIS / CA1510001 / 5200
2024 LEAD AND COPPER RULE REVISIONS RPT 1 SDWIS / CA1510001 / 5200
2021 Lead and Copper Rule MR 9 SDWIS / CA1510001 / 5000
2019 Arsenic MCL 161 SDWIS / CA1510001 / 1005
2013 Total Haloacetic Acids (HAA5) MR 10 SDWIS / CA1510001 / 2456
2012 Nitrate MR 12 SDWIS / CA1510001 / 1040
2011 Coliform (TCR) MCL 42 SDWIS / CA1510001 / 3100
2011 TTHM MR 8 SDWIS / CA1510001 / 2950
2004 Nitrate MCL 10 SDWIS / CA1510001 / 1040
2002 Nitrite MR 2 SDWIS / CA1510001 / 1041
2002 Carbon tetrachloride MR 2 SDWIS / CA1510001 / 2982
2002 Benzene MR 2 SDWIS / CA1510001 / 2990
2002 CHLOROBENZENE MR 2 SDWIS / CA1510001 / 2989
2002 Tetrachloroethylene MR 2 SDWIS / CA1510001 / 2987
2002 Fluoride MR 2 SDWIS / CA1510001 / 1025

How Arvin Community Services Dist Compares

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

Metric Arvin Community Services Dist California avg Federal benchmark
Total violations 331 21.1 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 219 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 19,669 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 (EPA proposed extending to 2031, not yet final as of May 2026)
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is Arvin Community Services Dist water safe to drink?
Arvin Community Services Dist (PWS ID: CA1510001) has 331 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 19,669 people using Groundwater sources.
How many people does Arvin Community Services Dist serve?
Arvin Community Services Dist serves 19,669 people in Arvin, California. It is a Local-owned system using Groundwater water sources with 4,349 service connections.
What type of violations does Arvin Community Services Dist have?
Arvin Community Services Dist has 331 total violations: 219 health-based violations (MCL exceedances or treatment failures), 107 monitoring/reporting violations, and 1 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Arvin Community Services Dist water?
No. Arvin Community Services Dist was tested for PFAS under the EPA's UCMR5 monitoring program and no PFAS contamination was detected.
What water source does Arvin Community Services Dist use?
Arvin Community Services Dist uses Groundwater 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.
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.
Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater Editorial

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This system's figures are rendered directly from EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.