Does St. Petersburg Have Hard Water?
Quick Summary: Yes — with an average of 180 ppm, St. Petersburg’s water is classified as very hard. This high mineral content, common throughout Florida due to the Floridan Aquifer, can cause scale buildup, soap scum, and dry skin. Learn what this means for your home and how water softening solutions from Culligan can help.
Yes, St. Petersburg, Florida, has hard water. The city’s water hardness averages around 180 parts per million (ppm), placing it in the “very hard” category according to the U.S. Geological Survey’s classification. This level of hardness is common in Florida due to the state’s reliance on the Floridan Aquifer water source, which contains high concentrations of calcium and magnesium.
Understanding Water Hardness in St. Petersburg
Water hardness refers to the concentration of dissolved minerals, primarily calcium and magnesium, in the water supply. In St. Petersburg, these minerals originate from the Floridan Aquifer, a limestone-rich underground water source. As water travels through the aquifer, it dissolves minerals from the surrounding rock, increasing its hardness.
Hard water can cause several issues in households, including:
- Scale buildup: Mineral deposits can accumulate in pipes, water heaters, and appliances, reducing efficiency and lifespan.
- Soap inefficiency: Hard water reacts with soap to form scum, decreasing cleaning effectiveness.
- Skin and hair dryness: The minerals can leave a residue on skin and hair, leading to dryness and irritation.
- Spotty dishes and laundry: Hard water can leave spots on dishes and make laundry feel stiff.

Water Quality in St. Petersburg
St. Petersburg’s water supply is managed by the city’s Water Resources Department, which sources water from surface water bodies like the Hillsborough River and regional reservoirs. The water undergoes treatment to meet safety standards set by the EPA and the Florida Department of Environmental Protection.
Despite meeting safety standards, some residents report issues such as taste, odor, and discoloration, often attributed to the mineral content in hard water. These aesthetic concerns, while not harmful, can be bothersome.
Additionally, the Environmental Working Group (EWG) has identified contaminants in St. Petersburg’s water supply that exceed their health guidelines, including arsenic, haloacetic acids, hexavalent chromium, and total trihalomethanes. These substances are byproducts of water disinfection processes and can pose health risks over long-term exposure.
Addressing Hard Water Issues
For homeowners experiencing problems associated with hard water, several solutions can improve water quality:
- Water softeners: These systems reduce water hardness by swapping out calcium and magnesium ions for sodium or potassium ions.
- Reverse osmosis systems: RO filtration systems remove a wide range of contaminants, including minerals responsible for hard water stains, providing clean drinking water.
- Whole-house filtration systems: Systems such as these treat all the water entering a home, addressing both hardness and other contaminants.
Implementing these solutions can lead to benefits such as prolonged appliance lifespan, improved soap efficiency, and better skin and hair health.
Culligan Water Solutions
Culligan Water offers a range of products and services tailored to address hard water issues in St. Petersburg:
Customized Culligan Water Treatment Systems
Culligan provides personalized water treatment solutions based on individual water quality assessments. Their offerings include:
- High-Efficiency Water Softeners: Designed to reduce scale buildup and improve water quality throughout the home. These systems replace calcium and magnesium ions with sodium or potassium ions, reducing water hardness.
- Reverse Osmosis Drinking Water Systems: These systems remove a wide array of contaminants, including minerals responsible for hardness. Through its filtration, reverse osmosis systems help with providing clean, great-tasting water to homeowners.
- Whole-House Filtration Systems: These systems address various water quality issues, including hardness and chlorine taste and odor. By using a whole-house filtration system, you will receive specialized solutions to combat iron, sulfur, and pretty much almost any other issue your Gulf Coast area home’s water is having.
Implementing these solutions can lead to benefits such as prolonged appliance lifespan, improved soap efficiency, and better skin and hair health.
Professional Services and Support
Culligan’s services extend beyond product offerings:
- Free Water Testing: Culligan offers complimentary water testing to identify specific water quality issues.
- Expert Installation: Licensed technicians ensure proper installation of water treatment systems.
- Ongoing Maintenance: Culligan provides regular maintenance services, including filter changes and system check-ups, to ensure optimal performance.
By choosing Culligan, homeowners can address hard water problems effectively, leading to improved water quality and household comfort.
Conclusion
St. Petersburg’s water is classified as very hard, with an average hardness of 180 ppm. While the water meets safety standards, the high mineral content can cause various household issues, from appliance inefficiency to skin dryness. Implementing water treatment solutions, such as those offered by Culligan, can mitigate these problems, providing residents with improved water quality and peace of mind.