PlainWater

MWD OF SO CAL GENE PLANT

PWS ID: CA3600383 · LA VERNE, California 91750

MWD OF SO CAL GENE PLANT serves 135 people in LA VERNE, California using Surface Water water sources. It has 33 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: MWD OF SO CAL GENE PLANT

MWD OF SO CAL GENE PLANT is a private-owned community water system that delivers drinking water to 135 residents in LA VERNE, California (San Bernardino County) through 61 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 33 total violations for this system , of which 0 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 9 monitoring and reporting violations are on file. The most recent violation on record dates to 1993.

The most frequently cited contaminant at this system is Gross Alpha, Excl. Radon and U, recorded in 2 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. MWD OF SO CAL GENE PLANT's 33 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
135
Total Violations
33
Health-Based Violations
0
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Private
Connections
61
County
San Bernardino
School/Daycare
No
MCL Violations
0
Monitoring Violations
9
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Gross Alpha, Excl. Radon and U MR 2 1981
Lead and Copper Rule MR 1 1993
2,4,5-TP MR 1 1981
2,4-D MR 1 1981
Toxaphene MR 1 1981
Endrin MR 1 1981
Methoxychlor MR 1 1981
BHC-GAMMA MR 1 1981

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 MWD OF SO CAL GENE PLANT.

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 CA3600383 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 MWD OF SO CAL GENE PLANT 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
1993 Lead and Copper Rule MR 1 SDWIS / CA3600383 / 5000
1981 Gross Alpha, Excl. Radon and U MR 2 SDWIS / CA3600383 / 4000
1981 2,4,5-TP MR 1 SDWIS / CA3600383 / 2110
1981 2,4-D MR 1 SDWIS / CA3600383 / 2105
1981 Toxaphene MR 1 SDWIS / CA3600383 / 2020
1981 Endrin MR 1 SDWIS / CA3600383 / 2005
1981 Methoxychlor MR 1 SDWIS / CA3600383 / 2015
1981 BHC-GAMMA MR 1 SDWIS / CA3600383 / 2010

How MWD OF SO CAL GENE PLANT Compares

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

Metric MWD OF SO CAL GENE PLANT California avg Federal benchmark
Total violations 33 21.1 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 0 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 135 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 MWD OF SO CAL GENE PLANT water safe to drink?
MWD OF SO CAL GENE PLANT (PWS ID: CA3600383) has 33 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 135 people using Surface Water sources.
How many people does MWD OF SO CAL GENE PLANT serve?
MWD OF SO CAL GENE PLANT serves 135 people in LA VERNE, California. It is a Private-owned system using Surface Water water sources with 61 service connections.
What type of violations does MWD OF SO CAL GENE PLANT have?
MWD OF SO CAL GENE PLANT has 33 total violations: 0 health-based violations (MCL exceedances or treatment failures), 9 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in MWD OF SO CAL GENE PLANT water?
No PFAS testing data is available for MWD OF SO CAL GENE PLANT under the EPA's UCMR5 monitoring program.
What water source does MWD OF SO CAL GENE PLANT use?
MWD OF SO CAL GENE PLANT 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.

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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