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Community Water System · PWS CA0910019

Lakeside Park Association

South Lake Tahoe, California 96150 - drinking water served from surface water sources to 2,648 people, tracked in EPA SDWIS and UCMR5.

2,648
People served
32
EPA violations
2
Health-based
Untested
UCMR5 result

The verdict

EPA records 32 drinking-water violations at Lakeside Park Association, 6% of them health-based - above the California per-system average.

32
Total EPA violations on record
6%
Health-based (MCL / treatment failure)
2,648
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Lakeside Park Association

Lakeside Park Association is a private-owned community water system that delivers drinking water to 2,648 residents in South Lake Tahoe, California (El Dorado County) through 142 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 32 total violations for this system , of which 2 (6%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 28 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 Surface Water Treatment Rule, recorded in 2 violations (TT, 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%).

Lakeside Park Association'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
2,648
Total Violations
32
Health-Based Violations
2
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Private
Connections
142
County
El Dorado
School/Daycare
No
MCL Violations
0
Monitoring Violations
28
Treatment Tech Violations
2

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Surface Water Treatment Rule TT 2 1993
Arsenic MR 2 2024
Cadmium MR 2 2024
Mercury MR 2 2024
Thallium, Total MR 2 2024
Selenium MR 2 2024
Nitrite MR 2 2024
Benzene MR 2 1990
Nickel MR 2 2024
Chromium MR 2 2024
Antimony, Total MR 2 2024
Beryllium, Total MR 2 2024
Barium MR 2 2024
Lead and Copper Rule MR 2 2023
Fluoride MR 2 2024
LEAD AND COPPER RULE REVISIONS RPT 1 2025

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 Lakeside Park Association.

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 CA0910019 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 Lakeside Park Association 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 LEAD AND COPPER RULE REVISIONS RPT 1 SDWIS / CA0910019 / 5200
2024 Arsenic MR 2 SDWIS / CA0910019 / 1005
2024 Cadmium MR 2 SDWIS / CA0910019 / 1015
2024 Mercury MR 2 SDWIS / CA0910019 / 1035
2024 Thallium, Total MR 2 SDWIS / CA0910019 / 1085
2024 Selenium MR 2 SDWIS / CA0910019 / 1045
2024 Nitrite MR 2 SDWIS / CA0910019 / 1041
2024 Nickel MR 2 SDWIS / CA0910019 / 1036
2024 Chromium MR 2 SDWIS / CA0910019 / 1020
2024 Antimony, Total MR 2 SDWIS / CA0910019 / 1074
2024 Beryllium, Total MR 2 SDWIS / CA0910019 / 1075
2024 Barium MR 2 SDWIS / CA0910019 / 1010
2024 Fluoride MR 2 SDWIS / CA0910019 / 1025
2023 Lead and Copper Rule MR 2 SDWIS / CA0910019 / 5000
1993 Surface Water Treatment Rule TT 2 SDWIS / CA0910019 / 0200

How Lakeside Park Association Compares

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

Metric Lakeside Park Association California avg Federal benchmark
Total violations 32 21.1 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 2 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 2,648 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 Lakeside Park Association water safe to drink? ▼
Lakeside Park Association (PWS ID: CA0910019) has 32 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 2,648 people using Surface Water sources.
How many people does Lakeside Park Association serve? ▼
Lakeside Park Association serves 2,648 people in South Lake Tahoe, California. It is a Private-owned system using Surface Water water sources with 142 service connections.
What type of violations does Lakeside Park Association have? ▼
Lakeside Park Association has 32 total violations: 2 health-based violations (MCL exceedances or treatment failures), 28 monitoring/reporting violations, and 2 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Lakeside Park Association water? ▼
No PFAS testing data is available for Lakeside Park Association under the EPA's UCMR5 monitoring program.
What water source does Lakeside Park Association use? ▼
Lakeside Park Association 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.
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.