Water Treatment
Services in
Miramar, FL

The City pumps groundwater from two aquifers: the Biscayne, about 60 to 150 feet below the city, and the deeper Floridan, which it draws from around 1,350 feet down. EPA's records list nine East wells, four West wells and two Floridan wells. The water goes to one of two plants, and both remove sediment, bacteria and much of the dissolved mineral load before chlorine is added.

The East plant, at 2600 SW 66th Terrace, dates to the late 1950s and is permitted for about 6 million gallons a day. It ran lime softening for decades. In 2019 the City replaced that with nanofiltration: the state cleared the new membrane trains in May 2019, the old lime building came down that December, and East-side customers were switched from chloramine to free chlorine at the same time. It serves homes and businesses from Palm Avenue east to State Road 7.

The West plant, at 4100 South Flamingo Road, was built in the late 1990s as the western neighborhoods filled in. It's rated at about 11.5 million gallons a day, uses both nanofiltration and reverse osmosis, and serves everything from Palm Avenue west to SW 196th Avenue. A new 2.5-million-gallon RO train was under construction there in 2024, with two more Floridan wells in design.

One exception is worth knowing. A strip between the Turnpike and State Road 7, from Pembroke Road south to SW 25th Street, has been served by Broward County rather than the City; during a 2013 County boil-water notice for that area, City customers weren't affected. If your bill comes from Broward County Water and Wastewater Services, your water is the City of Hollywood's, which the County buys and resells, and our page on Hollywood's plant covers it. City billing, leaks and service questions go to 954-602-HELP (4357), Monday through Thursday, 7 a.m. to 6 p.m.

The 2023 results weren't always the case. In July 2014, while the East plant still used lime softening, EPA's earlier testing round (UCMR 3) found PFOS at 47 ppt and PFOA at 21 ppt in its finished water, plus chromium-6 at 0.11 ppb. The West plant, already running membranes, showed none of the three. Those 2014 East numbers would be far above the 4 ppt limits that take effect in 2029; in 2023, four years after nanofiltration replaced lime, neither plant had anything above the reporting level.

EPA lists high-pressure membranes such as nanofiltration and RO among the treatments that work for PFAS, so the change fits what you'd expect. Next door, Pembroke Pines draws from the same aquifer, and its plant measured PFOS at 34.7 ppt in 2023; our Pembroke Pines water report summary has those numbers. On City of Miramar water, an under-sink reverse osmosis system is something to choose for lead, taste or extra margin; the PFAS results don't call for one.

Pinhole leaks in copper plumbing have been a public dispute in central and west Miramar since at least 2021, when the City held two online workshops about them. In April 2023 a group of homeowners filed a class action in Broward Circuit Court against the City and its engineering consultant, Kimley-Horn. They claim the West plant removed minerals, calcium carbonate in particular, without putting enough back, and that the water it sent out from 2016 to 2022 corroded copper pipes. The City says its water meets every state and federal standard and has pointed to installation and grounding problems as other causes. A trial judge dismissed the case; on May 7, 2025, the Fourth District Court of Appeal revived the negligence claims and sent it back for further litigation. Nothing has been decided about the cause.

For affected residents the City offers a loan of up to $10,000 at 1% simple interest over five years, handled by the Utilities Department at 13900 Pembroke Road. We don't repipe houses and we won't sell you a system as a cure for pinholes. A water softener actually removes calcium, so it isn't the answer to water that may already be low in it. What we can do is measure pH, hardness and TDS at your tap during the free test and give you the readings to share with your plumber.

The City doesn't publish a hardness figure, and the 14 to 18 grains per gallon you'll see online describe raw Biscayne well water before any treatment. Untreated Biscayne water in Broward and Miami-Dade runs about 14 grains per gallon (USGS). Nanofiltration takes out most of that calcium and magnesium, and the West plant's 2014 strontium numbers were roughly a quarter of what lime-softened plants nearby were sending out.

So for most City customers, a softener isn't where we'd spend your money. If your test reads soft, we'll tell you so. The homes that do need a water softener are the ones on private wells, and anyone whose reading surprises us; in that case we size it to the actual grains, usually 48,000 to 64,000 grain capacity for a well-water house.

Miramar disinfects with free chlorine, while most of its Broward neighbors use chloramine, so the "pool" smell people notice here is chlorine itself. It tends to be strongest nearer the plants. Ordinary activated carbon handles free chlorine well; our whole-house carbon filtration uses catalytic carbon, which also takes out the trihalomethanes and haloacetic acids that form as chlorine reacts in the pipes. At 29.3 and 13.9 ppb in 2024, those are well under the limits, so carbon here is mostly about taste, smell and showers.

Chlorate is the one disinfection leftover the yearly report doesn't cover. It forms as stored bleach breaks down, and the 2014 federal tests found 75 to 700 ppb across the two plants and a home tap on SW 29th Court, against an EPA health reference level of 210 ppb. There's no federal limit for chlorate and no newer Miramar data. RO at the kitchen sink reduces it if you'd rather not wonder.

Lead comes from plumbing, not from the plants. Miramar began in 1955 as 2.9 square miles between SW 64th Avenue and University Drive, and the East plant and the first sewer lines date from that decade. Homes built there before 1986, when lead solder was banned, are the ones most worth a first-draw test. West of Palm Avenue, the subdivisions are mostly from the 1990s and 2000s; listings in Silver Lakes show homes built in the late 1990s, and Monarch Lakes and Sunset Lakes around 2001 and 2002.

EPA's records show the City's 90th-percentile lead result at 8 ppb in 2017 and again in one 2019 round, then between 0 and 1.7 ppb in every round since 2020, with 1.2 ppb in June 2023. When the City finished its first service line inventory on October 16, 2024, about 3,869 lines were still listed as "lead status unknown" because records were incomplete; crews are checking them in the field and the City posts a map online. If your home is older, our free lab lead test gives you your own number.

Country Club Ranches, the large-lot neighborhood in ZIP 33027, was built on private wells. The City is running water mains through it in seven phases: Phase 1 connected 134 residents by April 2023, Phase 2 went to construction that year, and Phase 3 had finished design by 2024. Phases 4 through 7 sit on private roads and need easements from each owner. Homes on a new main have 180 days to connect.

Until your street is on City water, your well is untreated Biscayne water: hard, often carrying iron, and tested by nobody but you. We test wells for hardness, iron, pH and TDS, and treatment usually means a softener and iron filtration, sometimes with UV added. Our Southwest Ranches well water page covers the same aquifer and equipment for the ranch town a few miles north.

The free water test takes about 20 minutes at your kitchen sink. We read hardness in grains, chlorine, iron, pH and TDS, and we tell you which plant serves your street and what its latest report shows. You get a quote only for what the readings support.

A carbon filter or softener usually goes in the same day in two to four hours; all three stages together take four to six. Afterward, RO filters and the membrane get changed on a schedule, softener owners top up salt about monthly and clean the brine tank yearly, and the valve wants service every five to seven years. Our filter replacement visits and softener salt delivery cover that, and you reach our own team when you call.