Orange County Water Quality Report
The City of Orlando's annual water quality report shows consistent hardness levels of 10-15 GPG across the municipal supply. This has been stable for decades.
Hardness Levels by Neighborhood
- City of Orlando: 10-15 GPG
- Kissimmee: 12-16 GPG
- Winter Garden: 10-14 GPG
- Oviedo: 9-13 GPG
- Sanford: 8-12 GPG
Mineral Content Breakdown
The Floridan Aquifer delivers water rich in calcium (150-250 mg/L) and magnesium (30-60 mg/L). These are the minerals that make water "hard."
How Orlando Compares
Orlando's 10-15 GPG is harder than Miami (5-8 GPG) and Tampa (8-12 GPG), but slightly softer than parts of Jacksonville (12-18 GPG).
What This Means for You
If you live in Orlando or the surrounding metro area, you almost certainly have hard water. The question isn't "if" but "how bad."
Conclusion
Orlando's water is definitively hard. Get a free water test to confirm your exact hardness level.
Hardness Ranges Explained
Understanding where your water falls on the hardness scale helps you make decisions about protection. The water treatment industry uses these standard GPG categories:
- 0-3.5 GPG -- Soft: Rare in Florida. No treatment needed.
- 3.5-7 GPG -- Moderately Hard: Noticeable scale in hot water areas only.
- 7-10.5 GPG -- Hard: Scale buildup visible within months. Detergent use increases.
- 10.5+ GPG -- Very Hard: Orlando falls here. Significant scale, appliance damage, and higher costs are inevitable without treatment.
Orlando's Position: At 10-15 GPG, Orlando sits firmly in the "very hard" category. This is the level where the cost of inaction starts adding up fast -- typically $1,000-2,000 per year in wasted detergent, energy, and premature appliance replacement for the average home.
Seasonal Variation in Orlando
Water hardness can fluctuate throughout the year based on rainfall, aquifer recharge rates, and water source blending. In Orlando, the general pattern is:
- Dry season (November-April): Water hardness tends toward the higher end (12-15 GPG) as the aquifer is drawn more heavily with less recharge from rain.
- Wet season (May-October): Heavy rainfall replenishes the aquifer, diluting mineral content slightly. Hardness may drop to 10-12 GPG temporarily.
While these seasonal shifts are real, they're small relative to Orlando's overall hardness. Even at its softest, Orlando water is still classified as "hard" by any standard.
What the Annual Water Quality Report Tells Us
The City of Orlando publishes an annual Consumer Confidence Report (CCR) that details water quality. Key findings from recent reports:
- Calcium levels: 150-250 mg/L -- the primary contributor to hardness
- Magnesium levels: 30-60 mg/L -- the secondary hardness contributor
- Total dissolved solids (TDS): 250-350 mg/L -- moderate, within EPA secondary standards
- pH: 7.0-8.0 -- slightly alkaline, which promotes scale formation
- Chloride: 30-60 mg/L -- within safe limits, but elevated in some coastal areas due to saltwater intrusion concerns
These numbers have been remarkably stable for decades. The Floridan Aquifer is a vast geological feature, and its mineral content doesn't change significantly year to year.
Hardness Ranges Explained
Understanding where your water falls on the hardness scale helps you make decisions about protection. The water treatment industry uses these standard GPG categories:
- 0-3.5 GPG -- Soft: Rare in Florida. No treatment needed.
- 3.5-7 GPG -- Moderately Hard: Noticeable scale in hot water areas only.
- 7-10.5 GPG -- Hard: Scale buildup visible within months. Detergent use increases.
- 10.5+ GPG -- Very Hard: Orlando falls here. Significant scale, appliance damage, and higher costs are inevitable without treatment.
Orlando's Position: At 10-15 GPG, Orlando sits firmly in the "very hard" category. This is the level where the cost of inaction starts adding up fast -- typically $1,000-2,000 per year in wasted detergent, energy, and premature appliance replacement for the average home.
Seasonal Variation in Orlando
Water hardness can fluctuate throughout the year based on rainfall, aquifer recharge rates, and water source blending. In Orlando, the general pattern is:
- Dry season (November-April): Water hardness tends toward the higher end (12-15 GPG) as the aquifer is drawn more heavily with less recharge from rain.
- Wet season (May-October): Heavy rainfall replenishes the aquifer, diluting mineral content slightly. Hardness may drop to 10-12 GPG temporarily.
While these seasonal shifts are real, they're small relative to Orlando's overall hardness. Even at its softest, Orlando water is still classified as "hard" by any standard.
What the Annual Water Quality Report Tells Us
The City of Orlando publishes an annual Consumer Confidence Report (CCR) that details water quality. Key findings from recent reports:
- Calcium levels: 150-250 mg/L -- the primary contributor to hardness
- Magnesium levels: 30-60 mg/L -- the secondary hardness contributor
- Total dissolved solids (TDS): 250-350 mg/L -- moderate, within EPA secondary standards
- pH: 7.0-8.0 -- slightly alkaline, which promotes scale formation
- Chloride: 30-60 mg/L -- within safe limits, but elevated in some coastal areas due to saltwater intrusion concerns
These numbers have been remarkably stable for decades. The Floridan Aquifer is a vast geological feature, and its mineral content doesn't change significantly year to year.
Common Questions About Hard Water
Is Orlando water safe to drink?
Yes. Orlando's water meets all EPA drinking water standards. The hardness minerals (calcium and magnesium) are actually beneficial for health. The issues with hard water are about plumbing damage, appliance life, and cleaning costs -- not safety.
What is the hardest water in the Orlando area?
Kissimmee typically has the highest hardness at 12-16 GPG (extremely hard). Parts of East Orlando near the St. Johns River watershed can reach 15-18 GPG. Most of central Orlando is 10-15 GPG.
Does boiling water remove hardness?
Boiling removes temporary hardness (calcium bicarbonate) by precipitating calcium carbonate. However, it does NOT remove permanent hardness (calcium sulfate, magnesium). For Orlando's water, boiling would reduce hardness by only about 30-40%, which is not enough to prevent scale.
How often should I test my water for hardness?
If you don't already know your exact hardness level, get tested once. If you have a water softener, test annually to verify it's working properly. DIY test strips from Home Depot or Lowe's cost $5-15 and give a quick reading.
Can I install a water softener myself?
While DIY installation is possible, professional installation ensures proper sizing for your home's water usage, correct plumbing connections, and warranty coverage. A professional installer will also test your water first to recommend the right system capacity.