Water Treatment
Services in
West Palm Beach, FL

City water comes from rain stored in Grassy Waters Preserve, a large wetland on the city's western edge. It runs through the M-Canal into Lake Mangonia and Clear Lake, and the plant pumps it out of Clear Lake for treatment. That makes the City the main exception in Palm Beach County, where most utilities pump from wells. In dry spells the City can bring water from Lake Okeechobee through the L-8 canal system, and in the 2024 drought it supplemented the lakes with water from its wells.

At the plant, the water is filtered and lime-softened, then passed under ultraviolet light before chloramine is added. The UV system started up in February 2019 and was reported at the time as the first UV drinking water treatment application in Florida. It's designed for up to 50 million gallons a day, slightly more than the plant's roughly 47 million gallon capacity.

The supply is changing. The South Florida Water Management District has approved a 50-year permit for the City to draw brackish water from the deep Floridan Aquifer, alongside the lakes. That plan calls for a reverse osmosis plant and new wells, phased in over years. Until it exists, what reaches your house is treated lake water, and the advice on this page is based on that.

Byproduct levels run higher here because disinfectant reacts with the dissolved plant material in lake water, the same material that tints Everglades water the color of tea, and forms trihalomethanes and haloacetic acids. Groundwater pumped from deep wells carries far less of it, which is why the bar chart above shows the City's 2023 figure well above its well-fed neighbors, even though all of them stay under EPA's limit.

The City's 2023 report showed a running average of 71.3 ppb for trihalomethanes, with some single samples over 80 ppb, and no violation. Levels tend to climb the farther water travels from the plant and the longer it sits in the mains. If you'd rather keep them lower inside your home, a carbon tank where the water enters the house treats the showers and laundry as well as the kitchen. RO then covers the drinking water. A softener does nothing for byproducts, so it isn't the place to start if this is your concern.

Weather has affected City water twice in recent years: an algae-toxin advisory in 2021 and a turbidity notice in 2024. An open-air source reacts to drought and heat in a way well systems rarely do. In May 2021, after a long dry season, blue-green algae in the lakes produced cylindrospermopsin. Plant samples from May 17, 24 and 25 were above EPA's 0.7 µg/L health advisory for young children and other sensitive groups. The county health department advised those groups to avoid tap water from May 28, and the City responded by switching on emergency wells, adding powdered activated carbon and changing its disinfection. Tests on June 1 and 2 were below the advisory level, and it was lifted on June 4.

The City monitors its source water for cyanotoxins as part of its source-to-tap program. In July 2024, turbidity, a measure of cloudiness, went over EPA's treatment standard; the City told customers they didn't need to boil water or take other action. Events like these are why some households here like having an RO tap for drinking water. They're not a reason to distrust the water day to day. The best way to stay informed is to sign up for City and Town alerts.

Lead isn't in the City's lake water; where it turns up, it comes from older plumbing, and the city has some of the oldest intact neighborhoods in the county. Old Northwood, on the National Register since 1994, holds more than 300 historic buildings from the 1920s and 1930s. El Cid along the Intracoastal and Flamingo Park, with its Mission-style homes and bungalows, are historic districts too, along with Central Park, Mango Promenade, Belair and Vedado Hillcrest. Many of these houses have been repiped. Others still have original copper with lead solder at the joints, galvanized lines, or old brass valves under the sinks.

The City's service-line inventory records the material of the pipe that brings water to your property, and you can look up your address on its water service line map. The plumbing inside your walls is a separate question, and only a sample from your own tap answers it. If you need a lead-specific filter, our page on drinking water filters explains what NSF/ANSI 53 certification covers. Until you have results, running the cold tap for a minute before drinking is a sensible habit.

Three different utilities serve homes with this mailing address, and your water bill names yours.

City of West Palm Beach utility. Inside city limits, mostly ZIP codes 33401, 33405, 33407 and 33409, plus parts of 33406, 33411, 33412 and 33417. It also serves the Town of Palm Beach and South Palm Beach across the Intracoastal (33480), so island homes get the same treated lake water described above. The City supplies a few parcels outside its own area by agreement with other utilities.

Palm Beach County Water Utilities. Much of the area with a "West Palm Beach" mailing address west of the city, including Westgate, Belvedere Homes and other unincorporated neighborhoods, is in the county's service area. County water comes from wells, switches to free chlorine every January and July instead of July only, and reported an average of 13.5 ppt PFOS in late-2024 federal testing. The City and the County set their service boundary by agreement, and it runs street by street, so a ZIP code alone won't settle it.

Riviera Beach Utility Special District. It serves parts of north West Palm Beach as well as Riviera Beach and Singer Island, from its own wells and lime-softening plant. Your water bill names your utility, and we confirm it during the test before comparing your results to any report. The same utility serves Palm Beach Shores, and our Palm Beach Shores page describes its plant and planned membrane upgrade in more detail.

The free water test takes about 20 minutes at your kitchen sink. We measure hardness, chloramine, iron, pH and total dissolved solids, so the recommendation rests on your water rather than a citywide average or a database listing. For pre-1986 homes we set up the lab lead test at the same visit.

On City water, choosing water filtration usually comes down to two questions: do you want byproducts and chloramine taste reduced throughout the house, and do you want RO for drinking water? A softener is a third question only if your hardness reading supports it. A condo near Clematis Street might only need RO; a 1930s Northwood house with a tank water heater might need all three. Standard installs are usually finished the same day. Filter changes, salt and service calls go to the same local team afterward.