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Community Water System · PWS 041200002

Seminole - Big Cypress

Hollywood, EPA Region 4 — Tribal Water Systems 33024 - drinking water served from groundwater sources to 2,132 people, tracked in EPA SDWIS and UCMR5.

2,132
People served
17
EPA violations
2
Health-based
Untested
UCMR5 result

The verdict

EPA records 17 drinking-water violations at Seminole - Big Cypress, 12% of them health-based.

17
Total EPA violations on record
12%
Health-based (MCL / treatment failure)
2,132
People served by this system
N/A
PFAS compounds detected (UCMR5)

Water Quality Snapshot: Seminole - Big Cypress

Seminole - Big Cypress is a native american-owned community water system that delivers drinking water to 2,132 residents in Hollywood, EPA Region 4 — Tribal Water Systems through 658 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 17 total violations for this system , of which 2 (12%) are health-based, meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 6 monitoring and reporting violations are on file. The most recent violation on record dates to 2013.

The most frequently cited contaminant at this system is Coliform (Pre-TCR), recorded in 3 violations (Other). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

EPA Region 4 — Tribal Water Systems has thousands of regulated public water systems tracked by EPA under the Safe Drinking Water Act.

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
2,132
Total Violations
17
Health-Based Violations
2
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Native American
Connections
658
School/Daycare
No
MCL Violations
2
Monitoring Violations
6
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (Pre-TCR) Other 3 1991
Lead and Copper Rule MR 3 1993
TTHM MCL 2 2011
Coliform (TCR) MR 2 2013
Nitrate MR 1 1993
Consumer Confidence Rule Other 1 2003

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 Seminole - Big Cypress.

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 041200002 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

EPA Region 4 — Tribal Water Systems Drinking Water Authority

EPA Region 4 — Tribal Water Systems's primacy agency administers the Safe Drinking Water Act locally. Search EPA SDWIS for the current state contact, or use the state's public health or environment department portal.

Find 04 regulator via EPA SDWIS

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
2013 Coliform (TCR) MR 2 SDWIS / 041200002 / 3100
2011 TTHM MCL 2 SDWIS / 041200002 / 2950
2003 Consumer Confidence Rule Other 1 SDWIS / 041200002 / 7000
1993 Lead and Copper Rule MR 3 SDWIS / 041200002 / 5000
1993 Nitrate MR 1 SDWIS / 041200002 / 1040
1991 Coliform (Pre-TCR) Other 3 SDWIS / 041200002 / 3000

How Seminole - Big Cypress Compares

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

Metric Seminole - Big Cypress EPA Region 4 — Tribal Water Systems avg Federal benchmark
Total violations 17 - SDWA compliance, any non-zero count is a recorded breach
Health-based violations 2 - Indicates a contaminant exceeded a federal MCL
PFAS detection None - EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 2,132 - Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across all regulated public water systems in EPA Region 4 — Tribal Water Systems.

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 Seminole - Big Cypress water safe to drink?
Seminole - Big Cypress (PWS ID: 041200002) has 17 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 2,132 people using Groundwater sources.
How many people does Seminole - Big Cypress serve?
Seminole - Big Cypress serves 2,132 people in Hollywood, EPA Region 4 — Tribal Water Systems. It is a Native American-owned system using Groundwater water sources with 658 service connections.
What type of violations does Seminole - Big Cypress have?
Seminole - Big Cypress has 17 total violations: 2 health-based violations (MCL exceedances or treatment failures), 6 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in Seminole - Big Cypress water?
No PFAS testing data is available for Seminole - Big Cypress under the EPA's UCMR5 monitoring program.
What water source does Seminole - Big Cypress use?
Seminole - Big Cypress 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.
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.