Largo ZIP 33773
33773 Water Quality Report for Largo Homes
This ZIP page gives Largo homeowners in 33773 a local water-data starting point from BaseWater's Tampa Bay research inventory.
- Likely utility service: Pinellas County Utilities (medium confidence in the research inventory)
- Hardness, mineral load, and shower-glass scale are worth checking first
- Chloramine taste or pool-like odor may need a carbon-focused treatment path
Heavy Metals signal
Arsenic at 753x above guidance
3.01 ppb in local reporting. Cancer.
Utility
Pinellas County Utilities
ZIP
33773
Contaminants surfaced
12
Metrics tracked
5
What homeowners in 33773 usually want to know
- Likely utility service: Pinellas County Utilities (medium confidence in the research inventory)
- Hardness, mineral load, and shower-glass scale are worth checking first
- Chloramine taste or pool-like odor may need a carbon-focused treatment path
Local utility snapshot
ZIP 33773 maps to Pinellas County Utilities in the 112-ZIP research inventory with medium confidence. BaseWater treats that as a starting point, then confirms the home, ZIP, and service boundary in the audit.
Utility
Pinellas County Utilities
Strongest local flag
Arsenic
Contaminant highlights
Arsenic
Heavy Metals
3.01 ppb · Cancer
Purchased surface water + Groundwater
Haloacetic acids (HAA9)
Disinfection Byproducts (HAAs)
25.7 ppb · Cancer
Purchased surface water + Groundwater
Haloacetic acids (HAA5)
Disinfection Byproducts
40.23 ppb · Disinfection Byproducts
Measured utility profile
Total trihalomethanes (TTHMs)
Disinfection Byproducts
48.25 ppb · Disinfection Byproducts
Measured utility profile
Radium-226 & -228
Radioactive Contaminants
2.5 pCi/L · Radioactive Contaminants
Measured utility profile
Related local pages
Clearwater water quality
Clearwater water commonly raises homeowner concerns around hardness, disinfection byproducts, and mineral-heavy groundwater blending across the Pinellas County system.
Largo water quality
Largo water commonly raises homeowner concerns around hardness, disinfection byproducts, and the day-to-day impact of mineral-heavy county utility water.
Pinellas County Utilities
Pinellas County Utilities is a major local starting point for Clearwater-area homeowners trying to understand what their tap water means in practice.
Water Filtration in Largo
For Largo homeowners dealing with hard water, spotting, or mineral-heavy county utility water across the home, BaseWater helps connect the local water profile to the right filtration strategy.
Trust and source notes
Built from public water data, then translated for the home
Public utility reports, EPA-linked records, EWG health-guideline context, and BaseWater local water-data mapping. BaseWater pages separate legal compliance from stricter health-guideline context. They are not a medical diagnosis or a tap-level lab result for any individual home.
Last reviewed
May 22, 2026
Reviewed by
BaseWater local water-data review
Data snapshot
February 20, 2026
Frequently asked questions
Who likely serves ZIP 33773?
The research inventory maps ZIP 33773 to Pinellas County Utilities with medium confidence. Service boundaries can vary by address, so BaseWater uses this as a starting point rather than a private-plumbing guarantee.
Why does BaseWater use a ZIP page for 33773?
A ZIP page connects public utility context to the homeowner's location before the audit narrows the recommendation to the actual home, symptoms, and treatment goals.
Get your free report for ZIP 33773
BaseWater uses your ZIP, local utility data, and your answers to show what may matter in your home.