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The city publishes its test results every year in a Consumer Confidence Report, and that report, not this page, is the legal answer for any given year. The water itself comes from deep wells in the Lower Hawthorn Aquifer, is treated by reverse osmosis, and is disinfected with chlorine before it reaches your tap. Meeting the legal standard is a different question from how the water feels in your house, and that second part is where most residents’ actual complaints start.
The city pulls raw water from wells 700 to 800 feet deep in the Lower Hawthorn Aquifer, according to the city’s own water production FAQ page. That depth, and the layers of rock above it, help shield the supply from surface contamination. The city runs two reverse osmosis plants, the Southwest RO plant and the North Cape Coral RO plant, pulling from a combined 55 raw water wells between them.
Reverse osmosis strips dissolved minerals out of the raw water so thoroughly that the product water coming off the membranes has little to no hardness left in it at all. The city’s water production FAQ puts the finished water at 4 to 5 grains per gallon of total hardness. Fluoride comes out the other end at 0.62 ppm at the tap, and chlorine is added for disinfection, which is why some residents notice a faint chlorine taste right after treatment.
A hardness reading of 4 to 5 grains per gallon sits in the soft to moderately hard range. It will not hurt you. It will leave spots on glassware, film on shower doors, and scale building up inside a water heater over years of use. The EPA’s own secondary standards note that total dissolved solids above 500 mg/L show up as hardness, deposits, and staining, and while Cape Coral’s water is not extreme on this scale, it is enough for most households to notice over time.
Water quality changes year to year as monitoring cycles roll over, and the city’s numbers you read today are only as current as the last published report. Cape Coral posts its Consumer Confidence Report annually on the Water Quality Report page, and that is the source to check before repeating any figure, including the ones stated above.
If scale, spots, and dry skin are the complaint rather than safety, a water softener is the standard fix for the hardness itself, and our water softener page covers how sizing works for a house on Cape Coral’s water. Some households add a reverse osmosis unit under the kitchen sink for drinking water taste on top of a whole-home softener, which our reverse osmosis page explains. Either way, sizing anything correctly starts with knowing your actual numbers at your address, not just the citywide average.
SWFL Water Pros is a referral service. We connect Cape Coral homeowners with a licensed local water treatment contractor for a free in-home water test and quote, no obligation. A test at your own tap tells you more than any citywide average can, since plumbing age and location inside the distribution system both shift the numbers. Request yours through our contact page, or start with our water testing page to see what a test actually checks for.
We connect you with a licensed local water treatment pro for a free in-home test and quote.
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