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SAN JUAN RD WS #01

PWS ID: CA2700733 · AROMAS, California 95004

SAN JUAN RD WS #01 serves 49 people in AROMAS, California using Groundwater water sources. It has 90 recorded EPA violations, including 51 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: SAN JUAN RD WS #01

SAN JUAN RD WS #01 is a private-owned community water system that delivers drinking water to 49 residents in AROMAS, California (Monterey County) through 15 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 90 total violations for this system , of which 51 (57%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 37 monitoring and reporting violations are on file. The most recent violation on record dates to 2015.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 51 violations (MCL, health-based). 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. SAN JUAN RD WS #01's 90 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
49
Total Violations
90
Health-Based Violations
51
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
15
County
Monterey
School/Daycare
No
MCL Violations
51
Monitoring Violations
37
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 51 2015
Coliform (TCR) MR 37 2008

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 SAN JUAN RD WS #01.

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 CA2700733 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 SAN JUAN RD WS #01 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
2015 Coliform (TCR) MCL 51 SDWIS / CA2700733 / 3100
2008 Coliform (TCR) MR 37 SDWIS / CA2700733 / 3100

How SAN JUAN RD WS #01 Compares

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

Metric SAN JUAN RD WS #01 California avg Federal benchmark
Total violations 90 21.1 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 51 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 49 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 SAN JUAN RD WS #01 water safe to drink?
SAN JUAN RD WS #01 (PWS ID: CA2700733) has 90 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 49 people using Groundwater sources.
How many people does SAN JUAN RD WS #01 serve?
SAN JUAN RD WS #01 serves 49 people in AROMAS, California. It is a Private-owned system using Groundwater water sources with 15 service connections.
What type of violations does SAN JUAN RD WS #01 have?
SAN JUAN RD WS #01 has 90 total violations: 51 health-based violations (MCL exceedances or treatment failures), 37 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in SAN JUAN RD WS #01 water?
No PFAS testing data is available for SAN JUAN RD WS #01 under the EPA's UCMR5 monitoring program.
What water source does SAN JUAN RD WS #01 use?
SAN JUAN RD WS #01 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.

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