Is Baltimore, Maryland Shower Water Safe? What's In Your Water (2026)
Khat Cruz
Is Baltimore, Maryland Shower Water Safe?
Population: 569,931 · Water Source: Prettyboy Reservoir, Loch Raven Reservoir, Liberty Reservoir
For health-conscious consumers in Baltimore, Maryland, understanding your shower water quality is crucial in 2026. While the city's drinking water meets federal standards, contaminants present can still impact your skin, hair, and respiratory health during showering. Knowing what's in your Baltimore shower water empowers you to make informed decisions for your well-being.
💧 Where Does Baltimore's Water Come From?
Primary Source: Prettyboy Reservoir, Loch Raven Reservoir, Liberty Reservoir
Baltimore's water supply originates from a robust system of three major reservoirs – Prettyboy, Loch Raven, and Liberty – located in the Gunpowder and Patapsco River watersheds. This surface water undergoes extensive treatment, including coagulation, flocculation, sedimentation, filtration, and disinfection, before distribution. The system serves over 1.8 million people in the Baltimore metropolitan area.
Treatment: Chloramination, Filtration, pH Adjustment, Fluoridation
🔬 What's In Baltimore's Shower Water?
Here are the key contaminants detected in Baltimore'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) | 49.41 ppb | No federal limit | 0.060 ppb | ⚠️ Exceeds EWG Health Guideline (824x above) |
| Total trihalomethanes (TTHMs) | 53.29 ppb | 80.0 ppb | 0.150 ppb | ⚠️ Exceeds EWG Health Guideline (355x above) |
| Haloacetic acids (HAA5) | 31.60 ppb | 60.0 ppb | 0.100 ppb | ⚠️ Exceeds EWG Health Guideline (316x above) |
| Bromodichloromethane | 7.22 ppb | No federal limit | 0.060 ppb | ⚠️ Exceeds EWG Health Guideline (120x above) |
| Chloroform | 26.15 ppb | No federal limit | 0.400 ppb | ⚠️ Exceeds EWG Health Guideline (65x above) |
| Dibromochloromethane | 1.21 ppb | No federal limit | 0.100 ppb | ⚠️ Exceeds EWG Health Guideline (12x above) |
| Nitrate and nitrite | 1.39 ppm | 10.0 ppm | 0.140 ppm | ⚠️ Exceeds EWG Health Guideline (10x above) |
| Nitrate | 1.22 ppm | 10.0 ppm | 0.140 ppm | ⚠️ Exceeds EWG Health Guideline (9x above) |
| Radium, combined (-226 and -228) | 0.233 pCi/L | 5.0 pCi/L | 0.050 pCi/L | ⚠️ Exceeds EWG Health Guideline (5x above) |
| Chromium (hexavalent) | 0.039 ppb | No federal limit | 0.020 ppb | ⚠️ Exceeds EWG Health Guideline (1.9x 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: 40.70 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: 43.37 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.
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: 27.86 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.
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: 6.01 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: 15.87 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: 1.55 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.
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: 1.30 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: 1.28 ppm. National average: 0.824 ppm.
Shower Impact: While primarily a drinking water concern, nitrates can contribute to skin irritation during extended shower exposure.
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: 0.369 pCi/L. National average: 0.332 pCi/L.
Shower Impact: Radioactive contaminants can become aerosolized in shower steam and inhaled, adding to overall exposure.
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: 0.093 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.
🧴 How Baltimore'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 Baltimore's water quality may be affecting you:
🧖 Skin Effects
- Dryness and irritation, especially for sensitive skin types
- Exacerbation of eczema and other dermatological conditions
- Reduced effectiveness of soaps and shampoos, leading to residue
- Potential for premature skin aging due to chemical exposure
💇 Hair Effects
- Dry, brittle, and frizzy hair texture
- Color fading in treated hair due to chlorine/chloramine
- Residue buildup, making hair feel heavy and dull
- Increased hair breakage and difficulty managing
🫁 Respiratory Effects
- Inhalation of chloramine and disinfection byproducts (DBPs) in steam
- Irritation of airways, potentially triggering asthma or allergies
- Increased risk of long-term respiratory issues from DBP exposure
- Discomfort during showering for individuals with sensitive lungs
✅ What You Can Do About It
Test Your Water
A home water test kit can provide a personalized report of contaminants specifically present in your Baltimore household's tap water, helping you identify targeted solutions.
Install a Shower Filter
A quality shower filter can significantly reduce chlorine, chloramine, heavy metals, and other contaminants that negatively impact skin and hair health.
Take Shorter, Cooler Showers
Reducing shower time and water temperature minimizes the amount of steam inhaled and skin absorption of volatile chemicals like DBPs and chloramines.
Moisturize Immediately After Showering
Applying a good moisturizer to damp skin helps lock in hydration and creates a barrier against environmental irritants, counteracting drying effects from hard or treated water.
Use pH-Balanced Skincare & Haircare
Opt for products that help restore your skin and hair's natural pH balance, which can be disrupted by hard water and chemical disinfectants.
Protect Your Skin & Hair From Baltimore's Water
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Related Reading
Is Baltimore tap water safe to shower in?
While Baltimore's tap water meets federal drinking water standards, it contains disinfectants like chloramine and naturally occurring minerals that can cause dryness, irritation, and exacerbate skin conditions during showering. For many, it's generally safe, but health-conscious individuals or those with sensitivities may seek mitigation.
Why does my skin feel dry and itchy after showering in Baltimore?
Baltimore's water, like many municipal supplies, contains chloramine for disinfection and is moderately hard. These factors can strip natural oils from your skin, leaving it feeling dry, itchy, and irritated, especially if you have sensitive skin or conditions like eczema.
Can Baltimore's shower water damage my hair?
Yes, the chloramine in Baltimore's water can strip hair of its natural oils, leading to dryness, brittleness, and color fading for treated hair. Hard water minerals also contribute to residue buildup, making hair appear dull and difficult to manage over time.
Are shower filters effective for Baltimore's water?
Absolutely. High-quality shower filters are designed to reduce specific contaminants like chloramine, chlorine, and some heavy metals, which are common in Baltimore's water. They can lead to noticeable improvements in skin hydration, hair texture, and reduced respiratory irritation from steam.
What are disinfection byproducts, and why are they a concern in my shower?
Disinfection byproducts (DBPs), such as TTHMs and HAA5, form when disinfectants like chloramine react with organic matter in the water. In the shower, these chemicals can volatilize into the steam, leading to inhalation and skin absorption, which can be a greater exposure pathway than ingestion for some DBPs.
