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Community Water System · PWS CA4400526

Big Redwood Park Water

Felton, California 95018 - drinking water served from surface water sources to 182 people, tracked in EPA SDWIS and UCMR5.

182
People served
47
EPA violations
3
Health-based
Untested
UCMR5 result

The verdict

EPA records 47 drinking-water violations at Big Redwood Park Water, 6% of them health-based - above the California per-system average.

47
Total EPA violations on record
6%
Health-based (MCL / treatment failure)
182
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Big Redwood Park Water

Big Redwood Park Water is a private-owned community water system that delivers drinking water to 182 residents in Felton, California (Santa Cruz County) through 66 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 47 total violations for this system , of which 3 (6%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 17 monitoring and reporting violations are on file. The most recent violation on record dates to 2024.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 5 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. Statewide, 447 of 694 UCMR5-tested systems have reported PFAS detections (64.4%).

Big Redwood Park Water's 47 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
182
Total Violations
47
Health-Based Violations
3
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Private
Connections
66
County
Santa Cruz
School/Daycare
No
MCL Violations
0
Monitoring Violations
17
Treatment Tech Violations
3

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MR 5 2007
Lead and Copper Rule MR 4 2020
Surface Water Treatment Rule TT 2 1992
Gross Alpha, Excl. Radon and U MR 2 1981
2,4,5-TP MR 1 1981
LEAD AND COPPER RULE REVISIONS RPT 1 2024
BHC-GAMMA MR 1 1981
Endrin MR 1 1981
LEAD AND COPPER RULE REVISIONS TT 1 2024
2,4-D MR 1 1981
Toxaphene MR 1 1981
Methoxychlor 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 Big Redwood Park Water.

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 CA4400526 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 Big Redwood Park Water 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
2024 LEAD AND COPPER RULE REVISIONS RPT 1 SDWIS / CA4400526 / 5200
2024 LEAD AND COPPER RULE REVISIONS TT 1 SDWIS / CA4400526 / 5200
2020 Lead and Copper Rule MR 4 SDWIS / CA4400526 / 5000
2007 Coliform (TCR) MR 5 SDWIS / CA4400526 / 3100
1992 Surface Water Treatment Rule TT 2 SDWIS / CA4400526 / 0200
1981 Gross Alpha, Excl. Radon and U MR 2 SDWIS / CA4400526 / 4000
1981 2,4,5-TP MR 1 SDWIS / CA4400526 / 2110
1981 BHC-GAMMA MR 1 SDWIS / CA4400526 / 2010
1981 Endrin MR 1 SDWIS / CA4400526 / 2005
1981 2,4-D MR 1 SDWIS / CA4400526 / 2105
1981 Toxaphene MR 1 SDWIS / CA4400526 / 2020
1981 Methoxychlor MR 1 SDWIS / CA4400526 / 2015

How Big Redwood Park Water Compares

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

Metric Big Redwood Park Water California avg Federal benchmark
Total violations 47 21.1 SDWA compliance, any non-zero count is a recorded breach
Health-based violations 3 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 182 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 Big Redwood Park Water water safe to drink? ▼
Big Redwood Park Water (PWS ID: CA4400526) has 47 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 182 people using Surface Water sources.
How many people does Big Redwood Park Water serve? ▼
Big Redwood Park Water serves 182 people in Felton, California. It is a Private-owned system using Surface Water water sources with 66 service connections.
What type of violations does Big Redwood Park Water have? ▼
Big Redwood Park Water has 47 total violations: 3 health-based violations (MCL exceedances or treatment failures), 17 monitoring/reporting violations, and 3 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Big Redwood Park Water water? ▼
No PFAS testing data is available for Big Redwood Park Water under the EPA's UCMR5 monitoring program.
What water source does Big Redwood Park Water use? ▼
Big Redwood Park Water 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.