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Public water system · FL4504903

Active

Seminole Improvement District

At a glance

Seminole Improvement District (PWSID FL4504903) is an active community water system in Palm Beach County, Florida. It reports serving 4,993 people through 4,200 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2018.

Dataset updated . Source: EPA SDWIS/ECHO public records.

Population served

4,993

Service connections

4,200

Primary source

GW

Groundwater

System type

CWS

Community water system

System record

PWSIDFL4504903
System typeCommunity water system
Activity statusActive
Population served4,993
Service connections4,200
Primary water sourceGroundwater
Owner typePrivate
Primacy agencyFL state drinking water program
City servedWestlake
StateFlorida
ZIP—
CountyPalm Beach County

How does Seminole Improvement District compare with other water systems in Palm Beach County?

By EPA's size categories, Seminole Improvement District is a medium system (3,301 to 10,000 people). Palm Beach County has 71 active public water systems. Its population served is well below the county average of 22,405 people per system, and accounts for 0.3% of the 1,590,728 people reported by systems filed under the county. Across Florida, the 5,197 active systems average 4,345 people each. Nationally, the average active community water system reports serving 6,703 people, so Seminole Improvement District is about 26% below that figure.

What does “community water system” mean?

A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Florida has 1,640 active community water systems, 32% of the state's 5,197 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 4,996 Florida systems (96%) list groundwater as their primary source.

Who owns and regulates Seminole Improvement District?

EPA lists Seminole Improvement District as privately owned. The FL state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 45 of the 71 active systems in Palm Beach County (63%) are also privately owned.

Does Seminole Improvement District have drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2018. The violations listed here began between January 2005 and January 2018. By type: 12 monitoring and reporting. The contaminant or rule involved most often is Lead and Copper Rule (3 of them). EPA lists 10 as resolved and 2 as archived. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed. Archived means the violation was not marked resolved but is more than five years past the end of the noncompliance period, so it no longer counts toward current compliance status.

BeganViolationContaminant or ruleHealth-basedStatus
2018-01-01Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52Lead and Copper Rulecode 5000NoResolved
2016-01-01Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52Lead and Copper Rulecode 5000NoResolved
2016-01-01Monitoring and reportingMonitoring and Reporting (DBP) · code 27Total trihalomethanes (TTHM)code 2950NoResolved
2016-01-01Monitoring and reportingMonitoring and Reporting (DBP) · code 27Haloacetic acids (HAA5)code 2456NoResolved
2005-09-01Monitoring and reportingMonitoring, Routine Minor (TCR) · code 24Total coliform bacteria (TCR)code 3100NoResolved
2005-01-01Monitoring and reportingMonitoring, Regular · code 03Lindane (gamma-BHC)code 2010NoResolved
2005-01-01Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52Lead and Copper Rulecode 5000NoResolved
2005-01-01Monitoring and reportingMonitoring, Regular · code 03Arseniccode 1005NoArchived
2005-01-01Monitoring and reportingMonitoring, Regular · code 03Alachlor (Lasso)code 2051NoResolved
2005-01-01Monitoring and reportingMonitoring, Regular · code 03Endrincode 2005NoResolved
2005-01-01Monitoring and reportingMonitoring, Regular · code 03Carbofurancode 2046NoResolved
2005-01-01Monitoring and reportingMonitoring, Regular · code 03Mercurycode 1035NoArchived

The 12 most recent violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.

Seminole Improvement District: frequently asked questions

Who runs Seminole Improvement District?

Seminole Improvement District (PWSID FL4504903) is a community water system privately owned. It is regulated by the FL state drinking water program.

How many people does Seminole Improvement District serve?

Seminole Improvement District reports serving 4,993 people through 4,200 service connections in Palm Beach County, Florida.

Where does Seminole Improvement District get its water?

EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.

Does Seminole Improvement District have any drinking water violations?

Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2018. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.

Is Seminole Improvement District's water safe to drink?

AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2018. For current results, consult the system's annual water quality report, EPA ECHO, or the FL state drinking water program.

Where can I find Seminole Improvement District's water quality report?

As a community water system, Seminole Improvement District must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.

Other water systems in Palm Beach County

Water systemCountyPopulation servedTypeSource
Palm Beach County Water UtilitiesPalm Beach671,114CommunityGroundwater
West Palm Beach WTPPalm Beach132,000CommunitySurface water
Boca Raton WTPPalm Beach130,000CommunityGroundwater
Boynton Beach PwsPalm Beach112,000CommunityGroundwater
Seacoast Utilities AuthorityPalm Beach97,552CommunityGroundwater
Jupiter Public Water System,Town ofPalm Beach94,929CommunityGroundwater

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About this data

Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.

Cite as: AquaCensus, “Seminole Improvement District, PWSID FL4504903, Florida”, https://aquacensus.com/water-systems/florida/seminole-improvement-district-fl4504903 (data as of October 1, 2026).