Lexington Spotlight
A lot of Lexington homeowners are convinced their tap water is the worst in the Midlands. The truth is a little more complicated — and honestly, more useful to know. There's a real, well-documented issue behind that reputation. It just isn't unique to Lexington, and knowing the actual cause changes what you should do about it.
Depending on the exact address, Lexington County homes are served by one of several different utilities: the Town of Lexington, the City of West Columbia, or the Joint Municipal Water and Sewer Commission (JMWSC). West Columbia operates two treatment plants — one drawing from Lake Murray, the other from the Saluda River — and most of the county's water traces back to one of those two sources, just delivered under a different utility's name depending on where you live.
That fragmented setup is exactly why even real estate agents and landlords in the area sometimes aren't sure which utility to call. It also means two houses a few streets apart can technically be on different water systems entirely.
The earthy, musty taste and smell that shows up in Lexington-area water — especially in warmer months — comes from naturally occurring compounds called geosmin and methylisoborneol (MIB), produced by algae and bacteria in Lake Murray. Higher temperatures, heavier rainfall, and increased runoff into the lake have made algal blooms more frequent in recent years, and human senses are extremely sensitive to both compounds — people can taste and smell them at concentrations far too low to pose any health risk. Utilities and state regulators are consistent on this point: the water remains safe to drink during these episodes, even when it doesn't taste like it.
Not really — and that's worth saying plainly. This is a Lake Murray and Saluda River sourcing issue, and it shows up across the whole region that draws from those waters. West Columbia, the Town of Lexington, JMWSC, Chapin, Irmo, and Red Bank/White Knoll have all reported the same taste-and-odor episodes. Columbia's own city water, sourced through the connected Congaree River system downstream, has reported nearly identical algae-driven taste complaints in recent years. Lexington isn't singled out by bad luck or worse treatment — it's just one of several communities sharing the same lake.
This isn't being ignored. West Columbia, Lexington, and JMWSC have been working with the University of South Carolina and the SC Department of Environmental Services since 2020 to study the problem, and that work has fed into an $86 million expansion of the Lake Murray Water Treatment Plant, which began construction in 2023. Part of that project is a $40 million ozonation system built specifically to target geosmin and MIB, along with iron and manganese, before water ever reaches your tap.
In the meantime, the utilities' own advice for taste and odor episodes is to pour tap water into a pitcher and refrigerate it overnight — which helps a little, but doesn't actually remove what's causing the problem.
That's really the gap a home filtration system fills. Whole-home carbon filtration is built to pull exactly these kinds of organic compounds out of your water at the point it enters your house, rather than waiting on a multi-year infrastructure project or refrigerating a pitcher every night. If you're in Lexington and tired of water that only tastes right some of the year, a free water test tells you exactly what's coming through your specific line right now.
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