PlainWater

CAL TRANS - VALLEY WELLS

PWS ID: CA3601097 · SAN BERNARDINO, California 92408

CAL TRANS - VALLEY WELLS serves 1,800 people in SAN BERNARDINO, California using Groundwater water sources. It has 23 recorded EPA violations, including 10 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: CAL TRANS - VALLEY WELLS

CAL TRANS - VALLEY WELLS is a state-owned transient non-community water system that delivers drinking water to 1,800 residents in SAN BERNARDINO, California (San Bernardino County) through 1 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 23 total violations for this system , of which 10 (43%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 13 monitoring and reporting violations are on file. The most recent violation on record dates to 2017.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 11 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. CAL TRANS - VALLEY WELLS's 23 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
1,800
Total Violations
23
Health-Based Violations
10
Water Source
Groundwater

System Details

System Type
Transient Non-Community
Owner Type
State
Connections
1
County
San Bernardino
School/Daycare
No
MCL Violations
10
Monitoring Violations
13
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 11 2013
Coliform (TCR) MCL 10 2013
Revised Total Coliform Rule MON 2 2017

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 CAL TRANS - VALLEY WELLS.

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 CA3601097 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 CAL TRANS - VALLEY WELLS 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
2017 Revised Total Coliform Rule MON 2 SDWIS / CA3601097 / 8000
2013 Coliform (TCR) MR 11 SDWIS / CA3601097 / 3100
2013 Coliform (TCR) MCL 10 SDWIS / CA3601097 / 3100

How CAL TRANS - VALLEY WELLS Compares

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

Metric CAL TRANS - VALLEY WELLS California avg Federal benchmark
Total violations 23 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 1,800 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 CAL TRANS - VALLEY WELLS water safe to drink?
CAL TRANS - VALLEY WELLS (PWS ID: CA3601097) has 23 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 1,800 people using Groundwater sources.
How many people does CAL TRANS - VALLEY WELLS serve?
CAL TRANS - VALLEY WELLS serves 1,800 people in SAN BERNARDINO, California. It is a State-owned system using Groundwater water sources with 1 service connections.
What type of violations does CAL TRANS - VALLEY WELLS have?
CAL TRANS - VALLEY WELLS has 23 total violations: 10 health-based violations (MCL exceedances or treatment failures), 13 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in CAL TRANS - VALLEY WELLS water?
No PFAS testing data is available for CAL TRANS - VALLEY WELLS under the EPA's UCMR5 monitoring program.
What water source does CAL TRANS - VALLEY WELLS use?
CAL TRANS - VALLEY WELLS uses Groundwater as its primary water source. It is classified as a Transient Non-Community Water System, serving transient populations.
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