Is Nashville, Tennessee Shower Water Safe? What's In Your Water (2026)
Khat Cruz
Last updated: April 2026.
Is Nashville, Tennessee Shower Water Safe?
Population: 683,622 · Water Source: Cumberland River
Understanding the quality of your shower water in Nashville, Tennessee, is crucial for your health and well-being. By 2026, while Nashville's water meets federal safety standards, specific contaminants can still impact your skin, hair, and respiratory health, making it vital to know what's in your water.
💧 Where Does Nashville's Water Come From?
Primary Source: Cumberland River
Nashville's drinking water primarily originates from the Cumberland River, a vital surface water source. The water undergoes a rigorous multi-stage treatment process at facilities like the K.R. Harrington Water Treatment Plant, ensuring it meets safe drinking water standards before distribution. This process includes coagulation, flocculation, sedimentation, filtration, and disinfection.
Treatment: Chloramination (using chloramines), filtration, sedimentation, coagulation, flocculation
🔬 What's In Nashville's Shower Water?
Here are the key contaminants detected in Nashville's water supply based on real testing data from the EWG Tap Water Database:
| Contaminant | Level Found | EPA Limit | EWG Guideline | Status |
|---|---|---|---|---|
| Haloacetic acids (HAA9) | 33.92 ppb | No federal limit | 0.060 ppb | ⚠️ Exceeds EWG Health Guideline (565x above) |
| Haloacetic acids (HAA5) | 20.45 ppb | 60.0 ppb | 0.100 ppb | ⚠️ Exceeds EWG Health Guideline (204x above) |
| Total trihalomethanes (TTHMs) | 27.31 ppb | 80.0 ppb | 0.150 ppb | ⚠️ Exceeds EWG Health Guideline (182x above) |
| Bromodichloromethane | 1.60 ppb | No federal limit | 0.060 ppb | ⚠️ Exceeds EWG Health Guideline (27x above) |
| Chloroform | 4.36 ppb | No federal limit | 0.400 ppb | ⚠️ Exceeds EWG Health Guideline (11x above) |
| Chromium (hexavalent) | 0.081 ppb | No federal limit | 0.020 ppb | ⚠️ Exceeds EWG Health Guideline (4x above) |
| Nitrate | 0.412 ppm | 10.0 ppm | 0.140 ppm | ⚠️ Exceeds EWG Health Guideline (3x above) |
| Vanadium | 0.215 ppb | No federal limit | 21.00 ppb | ⚠️ No Federal Limit |
| Manganese | 0.316 ppb | No federal limit | 100.00 ppb | ⚠️ No Federal Limit |
| Strontium | 0.101 ppb | No federal limit | 1500.00 ppb | ⚠️ No Federal Limit |
Contaminant Details
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: 28.44 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.
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: 21.53 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.
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: 30.36 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.
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: 3.91 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.
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: 17.68 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.
Chromium (hexavalent)
The health guideline of 0.02 ppb for chromium (hexavalent) was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.
Comparison: State average: 0.102 ppb. National average: 0.440 ppb.
Shower Impact: Hexavalent chromium can be absorbed through the skin during bathing, adding to overall exposure beyond drinking water.
Nitrate
The health guideline of 0.14 ppm for nitrate was defined in a peer-reviewed scientific study by EWG and corresponds to one-in-one-million annual cancer risk level.
Comparison: State average: 0.560 ppm. National average: 0.824 ppm.
Shower Impact: While primarily a drinking water concern, nitrates can contribute to skin irritation during extended shower exposure.
Vanadium
The health guideline of 21 ppb for vanadium was defined by the Environmental Protection Agency as a benchmark for testing under the Unregulated Contaminant Monitoring Rule program. This health guideline protects against change in blood chemistry.
Comparison: State average: 0.181 ppb. National average: 1.54 ppb.
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.
Manganese
The health guideline of 100 ppb for manganese was defined by the state of Minnesota as a health risk limit, the concentration of a contaminant that can be consumed with little or no risk to health. This health guideline protects against harm to the brain and nervous system.
Comparison: State average: 2.38 ppb. National average: 8.66 ppb.
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.
Strontium
The health guideline of 1,500 ppb for strontium was defined by the Environmental Protection Agency as a benchmark for testing under the Unregulated Contaminant Monitoring Rule program. This health guideline protects against harm to bones.
Comparison: State average: 0.094 ppb. National average: 0.488 ppb.
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.
🧴 How Nashville'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 Nashville's water quality may be affecting you:
🧖 Skin Effects
- Dryness and itchiness due to chloramines stripping natural oils
- Eczema flare-ups and irritation from mineral residue (hard water)
- Accelerated skin aging from oxidative stress caused by disinfection byproducts
- Dullness and residue buildup from hard water minerals
💇 Hair Effects
- Dryness and brittleness from chloramines and hard water
- Color fading in treated hair due to chlorine exposure
- Lack of lather and difficulty rinsing shampoo from hard water
- Residue buildup making hair feel heavy or greasy
🫁 Respiratory Effects
- Irritation of nasal passages and airways from inhaled chloramine vapor
- Exacerbation of asthma or allergy symptoms due to disinfection byproducts in steam
- Coughing or shortness of breath for sensitive individuals in poorly ventilated bathrooms
- General respiratory discomfort from chemical vapors
✅ What You Can Do About It
Test Your Home's Water Quality
Invest in a reputable home water test kit or professional analysis to get a precise understanding of contaminants present in your specific tap water.
Install a Quality Shower Filter
A shower filter specifically designed to reduce chloramines, disinfection byproducts, and heavy metals can significantly improve your shower water quality and mitigate skin/hair issues.
Use Moisturizing Skin and Hair Products
Combat the drying effects of hard water and chloramines by using hydrating lotions, conditioners, and gentle, sulfate-free cleansers after showering.
Optimize Shower Duration and Temperature
Taking shorter, cooler showers can reduce your exposure to steam-borne contaminants and minimize the drying impact on your skin and hair.
Ensure Bathroom Ventilation
Improve air circulation in your bathroom by using an exhaust fan or opening a window to reduce the concentration of inhaled chemical vapors from hot shower water.
Protect Your Skin & Hair From Nashville's Water
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Related Reading
- why your skin feels dry after showering
- chromium-6 in tap water
- nitrates in tap water
- shower water quality in Knoxville, Tennessee
- shower water quality in Memphis, Tennessee
Is Nashville tap water safe to shower in?
Yes, Nashville's tap water meets federal safety standards for showering. However, sensitive individuals, those with skin conditions like eczema, and health-conscious consumers may experience adverse effects from contaminants like chloramines and hard water minerals.
Why does my skin feel dry and itchy after showering in Nashville?
Nashville's water contains chloramines, which can strip natural oils from your skin, and it is moderately hard, leaving behind mineral residue. Both factors contribute to dryness, itchiness, and can exacerbate conditions like eczema.
Do shower filters really work for Nashville's water?
Yes, a high-quality shower filter can be very effective in Nashville. Look for filters specifically designed to reduce chloramines, disinfection byproducts (like TTHMs and HAA5s), and heavy metals, as these are the primary concerns for shower water safety and comfort.
What is 'hard water' and does Nashville have it?
Hard water refers to water with a high concentration of dissolved minerals, primarily calcium and magnesium. Yes, Nashville's water is considered moderately hard, which can lead to soap scum, mineral buildup on fixtures, and impact the effectiveness of soaps and shampoos.
How do chloramines affect my hair?
Chloramines can be harsh on hair, stripping away its natural protective oils, leading to dryness, brittleness, and a lack of luster. For color-treated hair, chloramines can also accelerate fading and alter hair color over time.
