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— 2025 PROVIDER REPORT

City of St. Petersburg Water Resources
water report

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

SUBSTANCES REPORTED

Water hardness
Chloramines
Haloacetic acids (HAA5)
Total trihalomethanes (TTHM)
Nitrate as nitrogen
Sodium — Cosme treated water
Lead at sampled taps
E. coli distribution sample

See amounts and explanations ↓

YOUR PROVIDER WATER SNAPSHOT● Verified official source

8REPORTED

Official monitoring reported for January–December 2025; some inorganic and lead/copper results use the latest required earlier sampling

No primary maximum-contaminant-level violation reported for 2025

City of St. Petersburg Water Resources

“8 reported substances translated into plain English below.”

WATER SOURCETampa Bay Water blend of Floridan Aquifer groundwater, regional surface water and desalinated seawater

TREATMENTAeration, lime softening, filtration, chloramine disinfection and pH stabilization

WHO THIS REPORT COVERSCity of St. Petersburg Water Resources customers; verify the provider on the utility bill

Water Resources Dispatch Center727-893-7261

— QUICK WATER SUMMARY

What your water provider reported.

St. Petersburg receives a changing blend of groundwater, surface water and desalinated water from Tampa Bay Water, then treats it at the Cosme plant with aeration, lime softening, filtration and chloramine disinfection. These results apply to City of St. Petersburg Water Resources customers—not every address in Pinellas County or every St. Petersburg mailing address.

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.

Why can a legal water limit change? See what “safe” and “compliant” actually mean →

01Water hardnessNaturally occurring calcium and magnesium create scale and soap-performance issues; hardness is mainly an aesthetic and maintenance concern.PROVIDER RESULT158 mg/L average in 2025, about 9.2 grains per gallonSee details

HEALTH BENCHMARKNo federal health-based limit

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

REPORT STATUSHard water; not a drinking-water violation

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

02ChloraminesThe disinfectant used to control microbes. Compliance is based on the running annual average, not the highest individual result.PROVIDER RESULT3.73 ppm highest running annual average; range 0.60–5.60See details

REPORT COMPARISON VALUE4 ppm MRDL

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

REPORT STATUSNo maximum residual disinfectant level violation reported

TREATMENT CONTEXTWhole-home activated carbon is commonly evaluated.

03Haloacetic acids (HAA5)A group of byproducts created during drinking-water disinfection.PROVIDER RESULT21 ppb; range 6.78–26.9See details

LEGAL LIMIT60 ppb MCL

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

REPORT STATUSBelow the federal MCL

TREATMENT CONTEXTWhole-home activated carbon is commonly evaluated.

04Total trihalomethanes (TTHM)A group of byproducts created during drinking-water disinfection.PROVIDER RESULT23 ppb; range 12.7–28.6See details

LEGAL LIMIT80 ppb MCL

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

REPORT STATUSBelow the federal MCL

TREATMENT CONTEXTWhole-home activated carbon is commonly evaluated.

05Nitrate as nitrogenCan come from fertilizer runoff, septic systems, sewage and natural deposits.PROVIDER RESULT0.15 ppm in November 2025See details

LEGAL LIMIT10 ppm MCL

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

REPORT STATUSBelow the federal MCL

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

06Sodium — Cosme treated waterCan reflect source-water minerals and saltwater influence. The date matters because this was not a 2025 sample.PROVIDER RESULT13.5 ppm in the latest required City sample from May 2023See details

REPORT COMPARISON VALUE160 ppm Florida standard

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

REPORT STATUSBelow the Florida standard

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

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

What would you like to check next?

Stay with information for Pinellas County. Choose one clear next step.

— FLORIDA TAP WATER NEWS & ANSWERS

Important Florida tap water news. Clear everyday answers.

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

NEW CONSUMER GUIDE • HOME WATER TESTSWhat should you expect from a free home water test?What hardness, TDS and pH can show—and which questions require a laboratory →NEW ANALYSIS • DRINKING-WATER STANDARDSWhy do tap-water standards keep changing?What “safe” meant before, what changed and what compliance really tells you →DRINKING-WATER WARNING • OKEECHOBEE COUNTYLead exceeds action level in Okeechobee water samplesWhat residents need to know and do now →

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 →

— POPULAR COMMUNITY WATER GUIDES

Start with the neighborhood you know

See official water results for your area—and what can still vary at an individual home.

MARTIN COUNTYNewfield · Palm City ST. LUCIE COUNTYDel Webb at Tradition JUPITERAdmirals Cove PALM BEACH GARDENSAvenir WELLINGTONOlympia LAKE WORTHWinston Trails DELRAY BEACHThe Bridges BOYNTON BEACHValencia Sound BOCA RATONBoca Bridges

Browse every Florida community water guide →

View all Florida Tap Water News →

— GET ADDRESS-SPECIFIC HELP

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your home’s water?

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Florida Premier directly serves Fort Lauderdale, Palm Beach County, Martin County, St. Lucie County and Tallahassee. Elsewhere in Florida, we will confirm a qualified local provider before connecting you.

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2We review availabilityFlorida Premier checks service coverage and the team schedule.
3We confirm the visitThe appointment is set only after confirmation by call or text.

Preparing the secure request form—it loads as you approach it.

Prefer to speak with someone?Call 888-561-8736We can take the same request by phone.Prefer to text?Text 888-561-8736Send your community and what you notice about your water.Request reference: preparing🔒 Florida Tap Report and Florida Premier have common ownership. Florida Premier currently fulfills requests in Fort Lauderdale, Tallahassee and throughout Palm Beach, Martin and St. Lucie counties. Elsewhere in Florida, any provider relationship will be disclosed before service.