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Community Water System · PWS CA5000090

Riverview Mobile Home Estates

Santa Cruz, California 95062 - drinking water served from groundwater sources to 540 people, tracked in EPA SDWIS and UCMR5.

540
People served
32
EPA violations
20
Health-based
Untested
UCMR5 result

The verdict

EPA records 32 drinking-water violations at Riverview Mobile Home Estates, 63% of them health-based - above the California per-system average.

32
Total EPA violations on record
63%
Health-based (MCL / treatment failure)
540
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Riverview Mobile Home Estates

Riverview Mobile Home Estates is a private-owned community water system that delivers drinking water to 540 residents in Santa Cruz, California (Stanislaus County) through 173 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 32 total violations for this system , of which 20 (63%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 12 monitoring and reporting violations are on file. The most recent violation on record dates to 2025.

The most frequently cited contaminant at this system is Combined Uranium, recorded in 14 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. Statewide, 447 of 694 UCMR5-tested systems have reported PFAS detections (64.4%).

Riverview Mobile Home Estates's 32 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
540
Total Violations
32
Health-Based Violations
20
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Private
Connections
173
County
Stanislaus
School/Daycare
No
MCL Violations
20
Monitoring Violations
12
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Combined Uranium MCL 14 2024
Coliform (TCR) MR 8 2004
Nitrate MCL 6 2025
Gross Alpha, Excl. Radon and U MR 2 1981
Nitrate MR 1 2024
Lead and Copper Rule MR 1 1993

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 Riverview Mobile Home Estates.

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 CA5000090 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 Riverview Mobile Home Estates 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
2025 Nitrate MCL 6 SDWIS / CA5000090 / 1040
2024 Combined Uranium MCL 14 SDWIS / CA5000090 / 4006
2024 Nitrate MR 1 SDWIS / CA5000090 / 1040
2004 Coliform (TCR) MR 8 SDWIS / CA5000090 / 3100
1993 Lead and Copper Rule MR 1 SDWIS / CA5000090 / 5000
1981 Gross Alpha, Excl. Radon and U MR 2 SDWIS / CA5000090 / 4000

How Riverview Mobile Home Estates Compares

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

Metric Riverview Mobile Home Estates California avg Federal benchmark
Total violations 32 21.1 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 20 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 540 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 Riverview Mobile Home Estates water safe to drink? ▼
Riverview Mobile Home Estates (PWS ID: CA5000090) has 32 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 540 people using Groundwater sources.
How many people does Riverview Mobile Home Estates serve? ▼
Riverview Mobile Home Estates serves 540 people in Santa Cruz, California. It is a Private-owned system using Groundwater water sources with 173 service connections.
What type of violations does Riverview Mobile Home Estates have? ▼
Riverview Mobile Home Estates has 32 total violations: 20 health-based violations (MCL exceedances or treatment failures), 12 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Riverview Mobile Home Estates water? ▼
No PFAS testing data is available for Riverview Mobile Home Estates under the EPA's UCMR5 monitoring program.
What water source does Riverview Mobile Home Estates use? ▼
Riverview Mobile Home Estates 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. This data is provided for informational purposes only.

Read our methodology - how this data is sourced, computed, and verified.

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.