The short answer
Yes — Edina’s tap water is legal, with zero federal violations. But legal is a floor, not a finish line: the EWG Tap Water Database flags eleven contaminants above the levels its scientists consider healthy — mostly chlorination byproducts, radium and trace PFAS. Add chlorine and very hard water, and there is a real case for treating your tap.
Legal vs. healthy: two very different yardsticks
There are two different yardsticks, and Edina passes one while falling short of the other. The first is the set of federal legal limits (Maximum Contaminant Levels) the EPA enforces — and against those, Edina’s municipal system (serving about 53,500 people) records zero violations. The water is legal to drink — but “legal” and “healthy” are not the same glass of water.
The second yardstick is the EWG health guidelines — stricter, science-based targets the Environmental Working Group considers healthy, which are not laws (EWG is an advocacy organization, not a regulator). By that measure, the EWG Tap Water Database flags eleven contaminants above guideline in Edina. So the honest framing is this: the water is legal and violation-free, but it carries eleven things above the levels EWG considers healthy to drink — a real gap between “legal” and “healthy,” and one you can close at your own tap.
What’s actually in Edina’s tap water
Per the EWG Tap Water Database (system MN1270011), the eleven above-guideline contaminants fall into three groups — and the same one or two systems address all of them:
| What’s in Edina’s tap water | How far past EWG’s health guideline | What removes it |
|---|---|---|
| Chlorination byproducts — 8 compounds (trihalomethanes, haloacetic acids and related) | All 8 above guideline; long-term exposure is associated with higher bladder-cancer risk in studies (EPA; Villanueva, 2004) | Carbon filter + reverse osmosis |
| Radium — radioactive, bone-seeking | Roughly 62× the guideline, yet still under the federal legal limit | Reverse osmosis + softening |
| PFAS — “forever chemicals” (PFHxS, PFOA) | Above EWG’s guideline; PFOA within the EPA’s 2024 legal limit (4 ppt), whose health goal is zero | Reverse osmosis + carbon |
None of these is illegal, and none is unique to Edina — chlorination byproducts show up in most chlorinated systems. But if you would rather drink water closer to EWG’s healthy target, the two systems that cover this whole list are carbon filtration at the whole house and reverse osmosis at the kitchen tap.
Chlorine — and what it does to your skin and hair
To keep the water free of bacteria all the way to your tap, Edina — like every chlorinated system — adds chlorine. It does its job. But it does not stop working at the faucet: chlorine is what a lot of people notice as dry, tight skin and dull hair after a shower.
The research is specific. Free chlorine in bathing water has been shown to measurably reduce the skin’s moisture barrier — an effect that appears at low levels (around 0.5 mg/L) in sensitive or eczema-prone skin, and at higher levels in normal skin (Seki, Journal of Dermatology, 2003).
What is not in doubt is the chemistry: carbon filtration removes the chlorine before it reaches your shower and taps. Whether that leaves skin and hair feeling better is something many homeowners report but no clinical trial has proven — so we will call it exactly what it is: a real reduction in chlorine, and a difference a lot of people say they can feel.
What about fluoride?
Fluoride is different from everything above: it is added on purpose, not a stray contaminant, and it is not one of the eleven EWG flags. Minnesota requires community water systems to fluoridate, and Edina adds fluoride at its plants (City of Edina), at the U.S. target of about 0.7 milligrams per liter.
It is also the subject of a genuine, current scientific debate — and here is the honest version. In 2024 the federal National Toxicology Program concluded, with moderate confidence, that higher fluoride exposure — above 1.5 mg/L, more than double the U.S. target — is associated with lower IQ in children; it also said the data are insufficient to establish an effect at 0.7 mg/L. A 2025 JAMA Pediatrics meta-analysis found a similar dose-response signal, mostly in high-fluoride regions abroad. And a 2024 Cochrane review found fluoridation’s cavity-prevention benefit is smaller today than before fluoride toothpaste became universal.
So the honest position is neither “fluoride is poison” nor “nothing to see here.” The strongest concerns are at levels well above what Edina delivers, and the evidence at 0.7 mg/L is genuinely unsettled. To minimize fluoride, a reverse-osmosis system removes it at the tap.
The Brookside story: legacy contamination is real here
A piece of local history most Edina homeowners never hear. In the early 2000s, vinyl chloride — a VOC and carcinogen from legacy industrial contamination of the Prairie du Chien aquifer — was detected in one of the city’s wells, and the affected well (Well 7) was shut down in 2003. That is the reassuring and the sobering part in one story: the groundwater under Edina is not pristine, but the city acted.
In 2012 it brought online a packed-tower air stripper VOC-treatment facility — tucked beneath the municipal parking ramp on Brookside Avenue — at a cost of roughly $6 million, with the MPCA contributing about $500,000 toward design. Four wells route through it: iron and manganese come out first, then VOCs are air-stripped, then fluoride and a line-protecting orthophosphate are added. It is proof the city treats hard problems — and a reminder that what reaches your particular tap depends on which well feeds your block.
Hard, too: what Edina’s very hard water adds
On top of what is dissolved in it, Edina’s water is very hard — 17 to 20 grains per gallon, firmly in the USGS “very hard” band (City of Edina; USGS). Hardness is a plumbing-and-appliance issue rather than a health one, but it is the reason for the scale on your fixtures, the spots on your glasses and the stiffness in your laundry, and it quietly shortens the life of water heaters and appliances.
Iron adds to it: only nine of the city’s eighteen wells route through a plant for iron and manganese removal, so staining reaches many taps depending on your block. For the hardness and staining the fix is a whole-house approach — a water softener with whole-home filtration. Our hardness guide and do-I-need-a-softener guide go deeper.
Morningside is the exception
One neighborhood breaks the pattern. Morningside is not on Edina’s wells at all — it is served by treated surface water from the City of Minneapolis (a Mississippi River source, ultrafiltered and lime-softened). That is a different taste-and-treatment profile than the rest of the city, which is one more reason the only reliable way to know what is in your water is to look at your address, not the city average.
What clean water gives you back
“Legal” is the floor. Here is what treating your water actually buys — plainly, without the hype:
- Fewer contaminants where you drink. A reverse-osmosis tap reduces the chlorination byproducts, radium and trace PFAS EWG flags — and fluoride, if you prefer — right at the glass.
- Softer showers. Carbon filtration strips the chlorine that can dry skin — and many people say their hair feels softer too.
- Better-tasting water and coffee, with the chlorine taste and odor gone at every tap.
- Protected plumbing and appliances. A softener stops the scale that wears out water heaters on 17–20-grain water.
The honest first step is not a high-pressure in-home demo — it is a straight water-quality review with upfront pricing: premium, NSF-certified systems starting at $2,999, a fraction of the $8,000–$12,000 the big dealers quote after a demo. Then you decide, with real numbers instead of a guess.
Key takeaways
- Legal, but not the same as healthy. Edina records zero federal violations, yet EWG flags eleven contaminants above the levels it considers healthy to drink (EWG, system MN1270011).
- Mostly chlorination byproducts (8 of 11), plus radium (~62× the EWG guideline) and two trace PFAS — long-term DBP exposure is associated with higher bladder-cancer risk in studies (EPA; Villanueva, 2004).
- Chlorine reaches your skin and hair. It measurably lowers the skin’s moisture barrier, especially in sensitive skin (Seki, 2003); carbon filtration removes it.
- Fluoride is added on purpose at ~0.7 mg/L; the strongest IQ concerns are at levels above 1.5 mg/L (NTP, 2024), and reverse osmosis removes it if you prefer.
- Very hard, too — 17–20 grains per gallon (USGS “very hard”); a plumbing-and-appliance issue a softener solves.
- Want cleaner than legal? Whole-home filtration plus reverse osmosis — reviewed and quoted upfront, no pressure.