How to Check If Your City Water Has High Chlorine Levels

Why Checking Your Chlorine Level Matters

Most people know their city adds chlorine to drinking water. What fewer people know is exactly how much is in their water. And why that number matters for their skin and hair every single day.

The US Environmental Protection Agency (EPA) allows up to 4 mg/L of chlorine in public water systems. Most cities run between 0.5 and 3.5 mg/L. The exact level depends on your location, your distance from the treatment plant, and even the season.

Even at lower levels, daily shower exposure adds up. Chlorine is a drying agent. It reduces the natural oils on your skin with every shower. Knowing your level helps you understand what your skin is dealing with each day.

Three Reasons to Check Your Chlorine Level

• Understand why your skin feels tight or dry after showering.
• Find out whether your city uses chlorine or chloramine, which affects filter choice.
• Make an informed decision about whether a shower filter is right for your home.

Method 1: Read Your Free Water Quality Report (CCR)

Every public water utility in the United States must publish an annual water quality report. This is called a Consumer Confidence Report, or CCR. It lists what was detected in your water, at what levels, and how those levels compare to federal safety limits.

It is free. It is required by law. And most people have never looked at one. Your CCR will tell you the disinfectant your utility uses (chlorine or chloramine), the detected level, and the allowable range.

How to Find Your CCR in Four Steps

1. Go to the EPA's Consumer Confidence Report search page at epa.gov/ccr and search by state or utility name.
2. Search online for your city or water authority name plus "consumer confidence report" or "annual water quality report."
3. Visit your water utility's website directly. Most post the current year's CCR under a "Water Quality" or "Reports" tab.
4. Check your water bill. Your utility's phone number is on the bill. Call and ask for a copy. They are required to provide it.

What to Look for in Your CCR

• Disinfectant type: look for "chlorine" or "chloramine" (also listed as chloramines or monochloramine).
• Disinfectant residual level: the measured concentration in mg/L or ppm at the time of testing.
• MRDL: Maximum Residual Disinfectant Level. The EPA legal limit is 4.0 mg/L for both chlorine and chloramine.
• MRDLG: The health goal level, which is also 4.0 mg/L for chlorine.
• Detected range: a low and high value showing seasonal variation across the year.

Method 2: Use At-Home Chlorine Test Strips

Test strips are the fastest way to check chlorine at your own tap. You do not need a lab. You do not need special equipment. Most strips give you a result in under a minute.

They are widely available at hardware stores, home improvement retailers, and online. A basic pack typically costs between $10 and $20. They are accurate enough for a quick check, though not as precise as a certified lab test.

How to Use Chlorine Test Strips

1. Run your tap for 30 seconds to clear any standing water in the pipes.
2. Fill a clean, clear glass with tap water directly from the faucet.
3. Dip the test strip into the water for the time shown on the packaging. Usually 1 to 2 seconds.
4. Hold the strip still for the time shown. Do not shake it or wave it dry.
5. Compare the strip color to the chart on the packaging. Match as closely as possible.

What to Look for in a Good Test Strip

• Measures free chlorine and total chlorine separately, not just one reading.
• Has a color chart that covers a range of 0 to at least 5 mg/L (ppm).
• Comes from a reputable water testing brand with clear instructions.
• Has not passed its expiration date. Expired strips give inaccurate results.

Method 3: Order a Certified Lab Water Test

If you want exact numbers, a certified lab test is the most accurate option. These tests go beyond chlorine. They also measure heavy metals, disinfection byproducts, water hardness, and other substances that test strips cannot detect.

Lab test kits are available online. You collect a water sample at home and mail it to a certified laboratory. Results typically arrive within one to two weeks. Costs range from around $60 to $200 depending on how many substances you want tested.

When a Lab Test Makes Sense

• You want to know your exact chlorine or chloramine level in specific numbers.
• You are also concerned about heavy metals like lead or copper from older pipes.
• You are moving to a new home or city and want a full picture of your water.
• Your skin, hair, or scalp issues have not improved despite changing products.
• You want documentation of your water quality for health or household records.

Chlorine vs. Chloramine: Why the Difference Matters

Not every city uses the same disinfectant. About one in five US water utilities uses chloramine instead of free chlorine. Chloramine is a combination of chlorine and ammonia. It is harder to reduce than free chlorine.

This matters because the filter media that works well on free chlorine does not work as effectively on chloramine. Knowing which one your city uses helps you choose the right approach for your shower water.

The Clyrskin Filtered Shower Head uses KDF-55, activated carbon, and calcium sulfite. KDF-55 and activated carbon provide partial reduction of chloramine. Free chlorine is reduced more consistently across all three media types.

What Do Chlorine Level Numbers Actually Mean?

Chlorine in water is measured in milligrams per liter (mg/L), also written as parts per million (ppm). For water, 1 mg/L equals 1 ppm. These two terms mean the same thing.

Here is what the numbers mean in practical terms for your shower water and skin.

Signs Your Shower Water May Have Higher Chlorine

You do not need a test to notice that something feels off. Your body often gives you signals first. These are common signs that the chlorine level in your shower water may be on the higher side.

None of these signs confirm an exact level on their own. But if several of them sound familiar, checking your CCR or using a test strip is a good next step.

Physical Signs to Watch For

• A pool-like or bleach smell during or right after your shower.
• Skin that feels tight, dry, or itchy within minutes of drying off.
• Hair that feels rough, dry, or straw-like after washing, even with conditioner.
• Eyes that feel irritated or sting slightly during a hot shower.
• Scalp that feels dry or itchy after every wash despite regular shampooing.
• Color-treated hair that fades noticeably faster than expected.

Environmental Signs at Home

• White, chalky residue on fixtures, tiles, or glass shower doors.
• Rust or orange staining in the tub or sink basin.
• Soap or shampoo that does not lather easily despite using the right amount.
• A stronger chlorine smell in the water after heavy rainfall or seasonal utility flushing.

What to Do Once You Know Your Chlorine Level

Once you have checked your water quality report or run a test strip, you have real information to work with. Here is how to use it.

If Your Level Is Low (Under 1.0 mg/L)

Your tap water is on the lower end for disinfectant residual. Daily shower exposure still adds up over time, but chlorine alone is less likely to be the main driver of skin or hair dryness. Consider whether other factors like hot water temperature, harsh cleansers, or hard water minerals may be contributing.

If Your Level Is Moderate to Higher (1.0 mg/L and Above)

Daily exposure at this range is more likely to reduce the natural oils on your skin and hair during every shower. A shower filter that targets chlorine and heavy metals may help reduce the chemical load your skin encounters each day.

The Clyrskin Filtered Shower Head uses a 25-stage system to reduce chlorine, heavy metals, and sediment. Replace the Clyrskin Replacement Filter every three to four months to keep filtration at full strength.

If Your City Uses Chloramine

Chloramine is harder to reduce than free chlorine. KDF-55 and activated carbon provide partial reduction. No shower-head filter completely removes chloramine. Knowing which disinfectant your city uses helps you set accurate expectations for any filter you choose.