Is Rochester, Minnesota Shower Water Safe? What's In Your Water (2026)
Khat Cruz
Last updated: April 2026.
Is Rochester, Minnesota Shower Water Safe?
Population: 126,413 · Water Source: Groundwater Wells
Concerned about what's in your shower water in Rochester, Minnesota? While the city's drinking water meets federal standards, what flows from your showerhead in 2026 can still impact your skin, hair, and overall well-being. Understanding these components is key to a healthier shower experience.
💧 Where Does Rochester's Water Come From?
Primary Source: Groundwater Wells
Rochester's water supply is sourced entirely from a system of deep groundwater wells, drawing from the Jordan and Mount Simon-Hinckley aquifers. This natural filtration provides a relatively clean source, but the water still undergoes treatment before distribution to ensure safety and quality.
Treatment: Chlorination for disinfection, fluoride addition, and pH adjustment.
🔬 What's In Rochester's Shower Water?
Here are the key contaminants detected in Rochester's water supply based on real testing data from the EWG Tap Water Database:
| Contaminant | Level Found | EPA Limit | EWG Guideline | Status |
|---|---|---|---|---|
| Perfluorohexane sulfonate (PFHXS) | 0.0000 ppt | 1e-05 ppt | 0.0000 ppt | ⚠️ Exceeds EWG Health Guideline (129x above) |
| Haloacetic acids (HAA9) | 5.65 ppb | No federal limit | 0.060 ppb | ⚠️ Exceeds EWG Health Guideline (94x above) |
| Total trihalomethanes (TTHMs) | 11.89 ppb | 80.0 ppb | 0.150 ppb | ⚠️ Exceeds EWG Health Guideline (79x above) |
| Radium, combined (-226 and -228) | 3.10 pCi/L | 5.0 pCi/L | 0.050 pCi/L | ⚠️ Exceeds EWG Health Guideline (62x above) |
| Bromodichloromethane | 2.85 ppb | No federal limit | 0.060 ppb | ⚠️ Exceeds EWG Health Guideline (47x above) |
| Haloacetic acids (HAA5) | 3.90 ppb | 60.0 ppb | 0.100 ppb | ⚠️ Exceeds EWG Health Guideline (39x above) |
| Chloroform | 7.65 ppb | No federal limit | 0.400 ppb | ⚠️ Exceeds EWG Health Guideline (19x above) |
| Dichloroacetic acid | 2.99 ppb | No federal limit | 0.200 ppb | ⚠️ Exceeds EWG Health Guideline (15x above) |
| Dibromochloromethane | 1.30 ppb | No federal limit | 0.100 ppb | ⚠️ Exceeds EWG Health Guideline (13x above) |
| Trichloroacetic acid | 0.821 ppb | No federal limit | 0.100 ppb | ⚠️ Exceeds EWG Health Guideline (8x above) |
Contaminant Details
Perfluorohexane sulfonate (PFHXS)
The health guideline of 0.001 ppt for perfluorohexane sulfonate was defined by EWG based on studies by Phillipe Grandjean of Harvard University and many other independent researchers who found reduced effectiveness of vaccines and adverse impacts on mammary gland development from exposure to PFOA and PFOS, the two PFAS most widely detected in drinking water. This health guideline harm to the developing immune system.
Comparison: State average: 0.0000 ppt. National average: 0.0000 ppt.
Shower Impact: Contaminants in shower water can be absorbed through the skin and inhaled as steam, increasing your daily exposure beyond what you get from drinking water alone.
Haloacetic acids (HAA9)
The health guideline of 0.06 ppb for haloacetic acids (HAA9) was defined by EWG . This health guideline protects against cancer.
Comparison: State average: 13.15 ppb. National average: 23.70 ppb.
Shower Impact: These disinfection byproducts become airborne in hot shower steam. You can inhale and absorb them through your skin, potentially increasing your exposure beyond just drinking water.
Total trihalomethanes (TTHMs)
The health guideline of 0.15 ppb for trihalomethanes was defined by in a peer-reviewed scientific study by EWG and represents a one-in-one-million lifetime cancer risk level. as a draft public health goal, the level of drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.
Comparison: State average: 18.07 ppb. National average: 29.06 ppb.
Shower Impact: These disinfection byproducts become airborne in hot shower steam. You can inhale and absorb them through your skin, potentially increasing your exposure beyond just drinking water.
Radium, combined (-226 and -228)
The health guideline of for radium, combined (-226 and -228) was defined by the California Office of Environmental Health Hazard Assessment as . This health guideline protects against cancer.
Comparison: State average: 1.12 pCi/L. National average: 0.332 pCi/L.
Shower Impact: Radioactive contaminants can become aerosolized in shower steam and inhaled, adding to overall exposure.
Bromodichloromethane
The health guideline of 0.06 ppb for bromodichloromethane was defined by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.
Comparison: State average: 4.00 ppb. National average: 5.89 ppb.
Shower Impact: These disinfection byproducts become airborne in hot shower steam. You can inhale and absorb them through your skin, potentially increasing your exposure beyond just drinking water.
Haloacetic acids (HAA5)
The health guideline of 0.1 ppb for haloacetic acids (HAA5) was defined by as . This health guideline protects against cancer.
Comparison: State average: 9.74 ppb. National average: 19.82 ppb.
Shower Impact: These disinfection byproducts become airborne in hot shower steam. You can inhale and absorb them through your skin, potentially increasing your exposure beyond just drinking water.
Chloroform
The health guideline of 0.4 ppb for chloroform was defined by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.
Comparison: State average: 11.63 ppb. National average: 16.20 ppb.
Shower Impact: These disinfection byproducts become airborne in hot shower steam. You can inhale and absorb them through your skin, potentially increasing your exposure beyond just drinking water.
Dichloroacetic acid
The health guideline of 0.2 ppb for dichloroacetic acid was defined by the Environmental Protection Agency as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.
Comparison: State average: 5.98 ppb. National average: 8.00 ppb.
Shower Impact: These disinfection byproducts become airborne in hot shower steam. You can inhale and absorb them through your skin, potentially increasing your exposure beyond just drinking water.
Dibromochloromethane
The health guideline of 0.1 ppb for dibromochloromethane was defined by the California Office of Environmental Health Hazard Assessment as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.
Comparison: State average: 1.87 ppb. National average: 3.55 ppb.
Shower Impact: These disinfection byproducts become airborne in hot shower steam. You can inhale and absorb them through your skin, potentially increasing your exposure beyond just drinking water.
Trichloroacetic acid
The health guideline of 0.1 ppb for trichloroacetic acid was defined by the Environmental Protection Agency as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.
Comparison: State average: 3.14 ppb. National average: 6.57 ppb.
Shower Impact: These disinfection byproducts become airborne in hot shower steam. You can inhale and absorb them through your skin, potentially increasing your exposure beyond just drinking water.
🧴 How Rochester's Water Affects Your Skin, Hair & Health
When you shower, contaminants in the water don't just wash off — they're absorbed through your skin and inhaled as steam. Here's how Rochester's water quality may be affecting you:
🧖 Skin Effects
- Dry, itchy skin
- Eczema flare-ups and irritation
- Soap scum residue buildup
- Premature aging due to chlorine exposure
💇 Hair Effects
- Dry, brittle, and dull hair
- Color fading in treated hair
- Mineral buildup leading to limpness or greasiness
- Difficulty lathering shampoo
🫁 Respiratory Effects
- Irritation of nasal passages and lungs from chlorine and DBP inhalation
- Potential exacerbation of asthma or allergies due to chemical vapors
- Dry throat or coughing after showering
✅ What You Can Do About It
Test Your Home's Water
A personalized water test can reveal the exact levels of contaminants in your specific home's water, helping you choose the best solutions.
Install a Quality Shower Filter
Shower filters effectively reduce chlorine, chloramines, and other contaminants, leading to softer skin, healthier hair, and less chemical exposure.
Take Shorter, Cooler Showers
Reducing shower time and water temperature minimizes exposure to steam-borne contaminants and helps preserve natural skin oils.
Moisturize Immediately After Showering
Applying a good moisturizer to damp skin locks in hydration, counteracting the drying effects of hard water and chlorine.
Use pH-Balanced & Sulfate-Free Products
These products are gentler on skin and hair, helping to mitigate the damage caused by harsh water conditions.
Protect Your Skin & Hair From Rochester's Water
The easiest way to remove chlorine, heavy metals, and other contaminants from your shower water.
Shop Afina Filtered Showerheads →🛒 Recommended Products for Rochester Residents
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Replacement filter cartridge for Afina shower filters. Lasts up to 6 months or 10,000 gallons.
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Related Reading
- why your skin feels dry after showering
- shower water making skin look dull
- why hair feels oily after showering
- fluoride in shower water
- nitrates in tap water
Is Rochester tap water safe to shower in?
While Rochester's tap water meets federal drinking water standards, showering exposes you to contaminants differently. Chlorine, disinfection byproducts, and hardness minerals can be inhaled via steam and absorbed through the skin, potentially causing dryness, irritation, and other issues.
Why does my skin feel dry and itchy after showering in Rochester?
Rochester's water is moderately hard and contains chlorine, both of which strip natural oils from your skin. Hard water minerals can also leave a residue, leading to dryness, itchiness, and potentially exacerbating conditions like eczema.
Does Rochester water damage hair?
Yes, the hardness minerals in Rochester's water can build up on hair, making it dull, brittle, and difficult to manage. Chlorine also strips hair's natural oils, leading to dryness, frizz, and faster fading of color-treated hair.
How effective are shower filters for Rochester water?
High-quality shower filters can be very effective at reducing chlorine, chloramines, and some heavy metals, significantly improving water quality for showering. This can lead to noticeable improvements in skin hydration, hair health, and a reduction in chemical odors.
What causes the chlorine smell in my Rochester shower water?
The chlorine smell comes from the disinfectant used by Rochester Public Utilities to kill bacteria and viruses in the water supply. When hot water vaporizes, the chlorine also becomes airborne, leading to the noticeable odor during your shower.
