Water Treatment in Palm Beach

What Is in Palm Beach Tap Water?

West Palm Beach is one of the few South Florida utilities that drinks surface water rather than well water. Rain falls into Grassy Waters Preserve, moves down the M-Canal into Clear Lake and is treated at the City's plant, which the Town's 2022 water supply study listed at 47 million gallons per day. Treatment is conventional filtration with lime softening, followed by UV and chloramine disinfection.

The numbers from the City's 2025 Annual Water Quality Report that matter for a Palm Beach home:

• Chloramine: averaged 3.21 ppm across the year, with a range of 0.5 to 4.2 ppm. Chloramine is the pool-like taste and smell in tap water and ice, and it is much more stubborn than free chlorine. It takes catalytic carbon with enough contact time to remove it.
• Total dissolved solids: 243 ppm. That is the mineral load you see as spotting on glass shower enclosures, polished stone and dark car paint after a rinse.
• Sodium 30.3 ppm, chloride 39.5 ppm, sulfate 36.6 ppm. Low compared with brackish-aquifer utilities on the Treasure Coast.
• Hardness: the City lime-softens at the plant and does not publish a hardness figure. Anyone quoting you a specific Palm Beach hardness number without testing your tap is guessing. We measure it.

Surface water carries one more consideration. On May 28, 2021, the Florida Department of Health in Palm Beach County issued a public health advisory after elevated levels of cylindrospermopsin, a toxin produced by blue-green algae, were found in drinking water from the West Palm Beach plant, which draws from Clear Lake. Vulnerable groups, including infants, pregnant and nursing women and people with liver conditions, were urged to use another source for drinking and cooking, and residents were told not to boil the water because boiling does not destroy the toxin. The City now monitors source and finished water for algal toxins through the algae season and publishes the results. For households that want an independent barrier at the kitchen tap, an under-sink reverse osmosis system is the practical answer.

Old Water Mains, Main Replacements and What Reaches Your Tap

The island's water distribution system dates to the 1940s or before. According to the Town's engineering consultant, every main installed on the island before 1960 is asbestos-cement or cast iron; mains laid after 1960 are ductile iron or PVC. In 2022 the Town's Public Works Director described the pipes as old but not failing, and the Town and City have been replacing them for more than two decades: 84 critical projects totaling $18 million were completed by 2004 under the 1999 agreement, and roughly another $11 million has been spent since from a repair and replacement fund paid for by Town customers' water bills.

• Australian Avenue received a $2 million main replacement in 2022.
• Cocoanut Row is getting a new main in 2026: about 2,500 feet of 16-inch pipe from the 1940s between Royal Poinciana Way and Pendleton Lane, budgeted at $3.2 million and funded by West Palm Beach, with work expected to run into the fall.

What this means inside your home is practical rather than alarming. The Town's consultant has said asbestos in cement pipe is a concern when pipe is cut and removed, which crews manage by keeping it wet and bagging it, not when water flows through it. The issue we actually see is particulate: main breaks, valve work and flushing on an older cast-iron grid stir up sediment and rust, which shows up as brief discoloration, grit in aerators and staining in white fixtures. A properly sized sediment prefilter ahead of your carbon stage catches that before it reaches appliances, shower valves and marble, and it protects the carbon bed from clogging early.

Palm Beach Is Choosing Its Next Water Supply

The current agreement with West Palm Beach ends on October 1, 2029, and the Town must tell the City its intentions in 2027. After a 2022 consultant study reviewed six options, the Town narrowed the field to two: stay with West Palm Beach and work with the City on a membrane treatment upgrade at its plant, or buy water from Lake Worth Beach, which blends lime-softened shallow well water with reverse osmosis water from the deep Floridan aquifer. Town leaders have said they want about 10 million gallons a day of membrane-treated water, and the agreement allows five-year extensions if the decision takes longer.

We do not know which way the Town will go, and no one should sell you equipment as if they do. Here is how we plan around it:

• Carbon stays useful either way. Both candidate supplies are disinfected with chloramine today, so a catalytic carbon stage for taste, odor and disinfection by-products is a sound purchase regardless of the outcome.
• Size a softener to your measured water, not to fear. Today's supply is already lime-softened at the plant, and membrane-treated water would be softer still. If your test justifies a softener, we size it to the numbers and install it with a bypass so it can be taken out of service later rather than stranded.
• Kitchen RO is a long-term fixture. An under-sink reverse osmosis system for drinking water and the ice maker is valuable on today's surface water and remains useful on any future supply.
• Modular, serviceable equipment. Standard housings and valves that any technician can service, so the system can be re-tuned with a filter or media change if your water changes.

Installing Water Treatment on the Island: Screening, Flood Zones and Salt Air

Where equipment goes matters more in Palm Beach than almost anywhere else we work. The Town's zoning code requires mechanical equipment to be completely obscured from view by a screening wall, and that wall is limited to seven feet measured from the lowest grade. In mapped flood zones, federal floodplain rules require mechanical equipment to sit at least a foot above base flood elevation. Town staff reported in 2025 that the two rules collide often enough that 32 variances for mechanical equipment had been approved since 2018.

We plan installations to stay out of that process whenever possible:

1. Indoors first. Garages, mechanical rooms and utility closets are the default location for softener, carbon and sediment tanks, which keeps them out of sight lines and out of the screening question entirely.
2. Existing equipment yards. Where a home already has a screened equipment area for air conditioning, pool equipment or a generator, we fit water treatment inside it and confirm the tank height clears the wall.
3. Flood elevation. On elevated or flood-zone properties we mount heads and controls on raised platforms rather than at slab level, and we flag anything that would require new outdoor equipment so you can decide before work starts.
4. New construction and major renovations. If your architect or builder is already working through the Town's review, we provide tank dimensions, drain and electrical requirements early so the equipment is drawn into the plans instead of added later.

Salt air is the other island factor. Oceanfront and lakefront exposure corrodes standard fittings and degrades cheap plastic housings, so on Palm Beach installs we use corrosion-resistant fiberglass tanks, stainless steel fittings and UV-resistant components anywhere equipment is outside the conditioned envelope.

Systems We Recommend for Palm Beach Homes

Every recommendation starts with a free in-home water test with written results: chloramine residual, hardness in grains per gallon, total dissolved solids, iron and pH, measured at your tap. On this supply most homes land on some combination of the following:

• Sediment prefilter sized to the home's peak flow, to catch rust and grit from main work on the island's older grid.
• Whole-home catalytic carbon sized by contact time and flow rate for chloramine, not a token cartridge. Larger estate homes with many simultaneous fixtures need larger beds or parallel tanks to keep pressure up. See whole-home filtration and city water filtration.
• Softener only when the test supports it, sized by measured hardness and fixture count, often twin-tank alternating on large homes so treated water is available around the clock. See water softeners.
• Under-sink reverse osmosis for drinking water and ice, the one stage that addresses dissolved solids and gives an independent barrier on a surface water supply.
• Scheduled service. Carbon, sediment and RO filters only work if they are changed on time. Our filter maintenance service tracks your system's schedule and contacts you when service is due, which matters if the house is closed for part of the year.

Seasonal homes need one extra step. Water sitting for weeks in carbon tanks, RO storage tanks and long runs of pipe goes stale and loses disinfectant. Before you return for the season, we can flush the system, replace the RO prefilters and sanitize the storage tank so the first glass tastes like the last one.

Condominium and cooperative buildings along the island are a different job: work inside a unit has to fit the space and the building's rules, and building-wide equipment involves the association. We design compact under-sink and closet systems for units and work with property managers on building systems. See our HOA and condo water treatment page for association work.

Prices depend on measured water, flow requirements and placement, not on a ZIP code, and we quote in writing after the test. Because we are based in West Palm Beach, the island is a short drive across the bridge, not a scheduled route from another county. Call (561) 309-6270 to book a test.