Is Indianapolis, Indiana Shower Water Safe? What's In Your Water (2026)
Khat Cruz
Last updated: April 2026.
Is Indianapolis, Indiana Shower Water Safe?
Population: 882,039 · Water Source: White River, Fall Creek, Eagle Creek Reservoir, Geist Reservoir
For the nearly 900,000 residents of Indianapolis, Indiana, understanding what's in your shower water is crucial for health and well-being. While the city's water meets federal safety standards, specific contaminants can impact your skin, hair, and respiratory health, making it essential to be informed about your daily shower.
💧 Where Does Indianapolis's Water Come From?
Primary Source: White River, Fall Creek, Eagle Creek Reservoir, Geist Reservoir
Indianapolis's water supply primarily comes from surface water sources including the White River, Fall Creek, Eagle Creek Reservoir, and Geist Reservoir. This water undergoes extensive treatment processes at facilities like the White River Treatment Plant and Fall Creek Treatment Plant to ensure it is safe for consumption and use. The multi-source approach provides resilience to the water system.
Treatment: Coagulation, flocculation, sedimentation, filtration, disinfection (chloramination), fluoridation
🔬 What's In Indianapolis's Shower Water?
Here are the key contaminants detected in Indianapolis'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) | 33.30 ppb | No federal limit | 0.060 ppb | ⚠️ Exceeds EWG Health Guideline (555x above) |
| Haloacetic acids (HAA5) | 38.59 ppb | 60.0 ppb | 0.100 ppb | ⚠️ Exceeds EWG Health Guideline (386x above) |
| Total trihalomethanes (TTHMs) | 51.73 ppb | 80.0 ppb | 0.150 ppb | ⚠️ Exceeds EWG Health Guideline (345x above) |
| Bromodichloromethane | 8.10 ppb | No federal limit | 0.060 ppb | ⚠️ Exceeds EWG Health Guideline (135x above) |
| Chloroform | 18.02 ppb | No federal limit | 0.400 ppb | ⚠️ Exceeds EWG Health Guideline (45x above) |
| Dibromochloromethane | 2.70 ppb | No federal limit | 0.100 ppb | ⚠️ Exceeds EWG Health Guideline (27x above) |
| Radium, combined (-226 and -228) | 0.632 pCi/L | 5.0 pCi/L | 0.050 pCi/L | ⚠️ Exceeds EWG Health Guideline (13x above) |
| Arsenic | 0.036 ppb | 10.0 ppb | 0.0040 ppb | ⚠️ Exceeds EWG Health Guideline (9x above) |
| Nitrate and nitrite | 0.627 ppm | 10.0 ppm | 0.140 ppm | ⚠️ Exceeds EWG Health Guideline (4x above) |
| Nitrate | 0.627 ppm | 10.0 ppm | 0.140 ppm | ⚠️ Exceeds EWG Health Guideline (4x above) |
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: 21.65 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: 16.41 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: 28.96 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: 5.78 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: 15.52 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.
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: 2.57 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.
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: 0.560 pCi/L. National average: 0.332 pCi/L.
Shower Impact: Radioactive contaminants can become aerosolized in shower steam and inhaled, adding to overall exposure.
Arsenic
The health guideline of 0.004 ppb for arsenic 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: 0.333 ppb. National average: 0.624 ppb.
Shower Impact: Arsenic in shower water can be absorbed through the skin. Long hot showers increase exposure time and absorption.
Nitrate and nitrite
The health guideline of 0.14 ppm for nitrate and nitrite was defined by based on the equivalent health guideline for nitrate, as defined in a peer-reviewed scientific study by EWG. . This health guideline protects against one-in-one-million annual cancer risk level.
Comparison: State average: 0.745 ppm. National average: 0.780 ppm.
Shower Impact: While primarily a drinking water concern, nitrates can contribute to skin irritation during extended shower exposure.
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: 0.878 ppm. National average: 0.824 ppm.
Shower Impact: While primarily a drinking water concern, nitrates can contribute to skin irritation during extended shower exposure.
🧴 How Indianapolis'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 Indianapolis's water quality may be affecting you:
🧖 Skin Effects
- Dry, itchy skin due to chloramines and hard water minerals
- Eczema flare-ups and increased irritation from chemical exposure and mineral residue
- Premature skin aging and dullness from chlorine's drying effects
- Soap scum residue that clogs pores and prevents effective moisturizing
💇 Hair Effects
- Dry, brittle, and damaged hair from chloramines stripping natural oils
- Dullness and lack of shine due to hard water mineral buildup
- Color fading in treated hair from chlorine exposure
- Difficulty lathering shampoo and conditioner, leading to increased product use
🫁 Respiratory Effects
- Irritation of nasal passages and lungs from inhaling chloramine and DBP vapors
- Exacerbation of asthma and allergy symptoms in sensitive individuals
- General respiratory discomfort from strong chemical odors in steam
- Potential long-term respiratory issues from chronic inhalation of disinfection byproducts
✅ What You Can Do About It
Test Your Water
Obtain a home water test kit or professional analysis to get precise data on contaminants specific to your Indianapolis home's plumbing and location. This provides a baseline for informed decisions.
Install a Shower Filter
A quality shower filter can significantly reduce chlorine, chloramines, and certain disinfection byproducts, leading to noticeable improvements in skin and hair health.
Reduce Shower Time and Temperature
Shorter, cooler showers minimize exposure to steam-borne contaminants and reduce the drying effects of hot water on skin and hair.
Moisturize Immediately
Apply a rich moisturizer to your skin and a leave-in conditioner to your hair within minutes of showering to lock in moisture and counteract drying effects.
Consider a Whole-House Filter
For comprehensive protection against a wider range of contaminants throughout your entire home, a whole-house filtration system is an effective long-term solution.
Protect Your Skin & Hair From Indianapolis's Water
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Related Reading
Is Indianapolis tap water safe to shower in?
While Indianapolis tap water meets EPA drinking water standards, showering can expose you to contaminants differently than drinking. Inhaling steam with chloramines and disinfection byproducts, or skin absorption of hard water minerals, can lead to skin, hair, and respiratory issues, even if the water is deemed 'safe' for consumption.
Why does my skin feel dry and itchy after showering in Indianapolis?
Indianapolis water is moderately hard, meaning it contains higher levels of minerals like calcium and magnesium. These minerals, combined with chloramines used for disinfection, can strip natural oils from your skin and leave a residue, leading to dryness, itchiness, and irritation, especially for those with sensitive skin or eczema.
Can Indianapolis shower water damage my hair?
Yes, the chloramines and hardness minerals in Indianapolis water can significantly impact hair health. Chloramines can strip natural oils, making hair dry and brittle, while mineral buildup from hard water can leave hair dull, limp, and prevent shampoos from lathering effectively, potentially fading color-treated hair.
Are shower filters effective for Indianapolis water?
Yes, shower filters can be very effective for addressing common issues in Indianapolis water. Many filters are designed to reduce chlorine and chloramines, which are primary culprits for dry skin, hair damage, and respiratory irritation from steam. Look for filters specifically designed to target chloramines and hard water minerals.
What are disinfection byproducts and why are they in my shower water?
Disinfection byproducts (DBPs) like Trihalomethanes (TTHMs) and Haloacetic Acids (HAA5s) form when disinfectants, such as chloramines, react with organic matter in the source water. These volatile compounds can off-gas into shower steam, leading to inhalation exposure and potential skin absorption during your shower.
