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— 2024 PROVIDER REPORT

Seminole Improvement District
water report

Start with the quick list. Amounts, limits and explanations are available farther down only if you want them.

SUBSTANCES REPORTED

Chlorine and chloramines
Haloacetic acids (HAA5)
Total trihalomethanes (TTHM)
Sodium
Lead at SID customer taps
PFOS (supplier UCMR5)
PFOA (supplier UCMR5)

See amounts and explanations ↓

YOUR PROVIDER WATER SNAPSHOT● Verified official source

7REPORTED

SID and Palm Beach County supplier results reported for 2023–2024

SID states the water met federal, state and local standards

Seminole Improvement District

“7 reported substances translated into plain English below.”

PUBLIC WATER SYSTEM IDFL4504903

WATER SOURCEPalm Beach County surficial-aquifer groundwater supply

TREATMENTTreated by Palm Beach County Water Utilities; distributed and sampled by SID

WHO THIS REPORT COVERSCity of Westlake; confirm Seminole Improvement District on the bill

Seminole Improvement District561-790-1742

— QUICK WATER SUMMARY

What your water provider reported.

Seminole Improvement District distributes Westlake's drinking water and purchases the treated supply from Palm Beach County Water Utilities. The latest official SID report we could verify is the 2024 report, published in 2025.

Start with the simple list below. Open See details to see whether the comparison is a legal limit, a health benchmark or another value used in the official report.

UTILITY REPORTDescribes the public system

Useful for source water, treatment and provider-wide monitoring.

PROPERTY TESTMeasures one address

Needed when the concern involves a building, service line, private well or exact tap.

IMPORTANTOne does not replace the other

A compliant utility report cannot rule out a plumbing issue inside one property.

01Chlorine and chloraminesDisinfectant used to control microbes; reported individual results ranged from 0.2 to 4.05 ppm.PROVIDER RESULT3.09 ppm running annual averageSee details

REPORT COMPARISON VALUE4 ppm MRDL

Legal limits are enforceable. Health benchmarks and goals may be non-enforceable comparison values.

REPORT STATUSNo violation reported

TREATMENT CONTEXTWhole-home activated carbon is commonly evaluated.

02Haloacetic acids (HAA5)Disinfection byproducts; reported range was 4.9–35.8 ppb.PROVIDER RESULT28.4 ppbSee details

REPORT COMPARISON VALUE60 ppb

Legal limits are enforceable. Health benchmarks and goals may be non-enforceable comparison values.

REPORT STATUSNo violation reported

TREATMENT CONTEXTWhole-home activated carbon is commonly evaluated.

03Total trihalomethanes (TTHM)Disinfection byproducts; reported range was 11.3–47.7 ppb.PROVIDER RESULT40.7 ppbSee details

REPORT COMPARISON VALUE80 ppb

Legal limits are enforceable. Health benchmarks and goals may be non-enforceable comparison values.

REPORT STATUSNo violation reported

TREATMENT CONTEXTWhole-home activated carbon is commonly evaluated.

04SodiumCan reflect natural conditions, saltwater influence and treatment inputs; supplier results ranged from 18.2–49.7 ppm.PROVIDER RESULT49.7 ppmSee details

REPORT COMPARISON VALUE160 ppm Florida standard

Legal limits are enforceable. Health benchmarks and goals may be non-enforceable comparison values.

REPORT STATUSNo violation reported

TREATMENT CONTEXTPoint-of-use reverse osmosis is commonly evaluated.

05Lead at SID customer tapsSID attributes the elevated individual result to a school fixture beyond its point of service and recommended replacement, flushing and resampling.PROVIDER RESULT0.821 and 0.41 ppb 90th-percentile results; one of 40 June samples exceeded 15 ppbSee details

REPORT COMPARISON VALUE15 ppb action level; the table marks the system action level as not exceeded

Legal limits are enforceable. Health benchmarks and goals may be non-enforceable comparison values.

REPORT STATUSLocation-specific result; not a citywide finding

TREATMENT CONTEXTCertified point-of-use RO or contaminant-specific filtration is commonly evaluated.

06PFOS (supplier UCMR5)An unregulated-monitoring result supplied by Palm Beach County Water Utilities for the water SID purchases.PROVIDER RESULT13.5 ppt; range not detected–18 pptSee details

LEGAL LIMIT4 ppt federal MCL; UCMR result is not a current compliance determination

Legal limits are enforceable. Health benchmarks and goals may be non-enforceable comparison values.

REPORT STATUSSupplier monitoring result

TREATMENT CONTEXTA complete water profile helps a qualified professional select the right approach.

Hardness and TDS can vary from street to street.

A provider report cannot tell us the exact levels at your tap. We need to test your home to give you an accurate measurement.

Get my exact measurements →

*Provider reports describe the public distribution system—not the water at a specific home. Actual results vary by service address, plumbing, seasonal utility conditions and system configuration. A softener does not necessarily reduce TDS. Address-specific testing is required before treatment is recommended.

— YOUR LOCAL WATER HUB

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— WATER NEWS & ANSWERS

Important water news. Clear everyday answers.

Local developments, treatment changes and practical explanations built from official sources.

INTERACTIVE WATER-PROBLEM CHECKERDoes your water look, smell or taste different?

Choose what you are noticing and get common causes, a safe first check and guidance on when to call the utility.

Check my water symptom →

BREAKING • OKEECHOBEE COUNTYLead exceeds action level in Okeechobee water samplesWhat residents need to know and do now →NEW • BROWARD COUNTYWill Fort Lauderdale’s new $666 million plant end yellow water?What the treatment upgrade can fix—and what it cannot →YOUR WATER REPORTWhat does a “safe amount” of chemicals actually mean?Legal limits, health goals and what compliance really tells you →

— POPULAR LOCAL WATER REPORTS

Official results for cities readers are checking now

View all Water News & Answers →

01

Less scale

Protect fixtures, water heaters and appliances from hard-water buildup.

02

Better showers

Softer-feeling water, easier lather and less residue on skin and hair.

03

Cleaner taste

Reduce the chlorine taste and odor many families notice at the tap.

— GET ADDRESS-SPECIFIC HELP

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your home’s water?

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