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Lead service lines in Charleston, SC

8 water utilities serve Charleston, with approximately 327,808 people served.

Last verified from EPA SDWIS + utility inventories: 2026-04-14
Known lead
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Galvanized
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Unknown
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% unknown
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Lead Service Lines in Charleston, SC

Charleston's public water systems serve about 327,800 people. The city has 8 water systems total, with Charleston Water System serving the vast majority of residents.

What we know about lead pipes in Charleston

The data available through public lead service line inventories shows no confirmed lead service lines reported by Charleston's utilities. However, this doesn't mean lead pipes don't exist in the area—it means utilities either haven't found them yet, haven't released the data, or the information isn't publicly available.

Lead service lines are metal pipes that connect your water meter to the street main. If your home was built before the 1980s, there's a higher chance you have one. Even homes built later can have them, especially in older neighborhoods.

Why this matters

Lead in drinking water can pose health risks, especially for young children and pregnant people. The EPA has set safety standards, but the safest level is zero—there's no known safe threshold for lead exposure in children.

If you're concerned about your home, the best approach is to:

1. Find out who serves your water. Charleston Water System (SC1010001) serves most city residents. Check your water bill or visit the utility's website. 2. Ask your utility directly. Contact them and ask whether your address has a known lead service line and whether they have an inventory you can access. 3. Get your water tested. You can buy an inexpensive test kit or hire a certified lab. This tells you what's actually in your water right now. 4. Consider a filter or flushing. While you investigate, running cold water before drinking or cooking can help reduce lead exposure.

Next steps for residents

  • Contact Charleston Water System or your local utility to ask about lead service line status at your address
  • Request a copy of the utility's lead service line inventory if available
  • Have your water tested by a certified lab (EPA maintains a list of approved labs)
  • Talk to your pediatrician if you have concerns about a child's exposure

Utilities serving Charleston

Common questions

Does Charleston have lead in the water?

Charleston Water System has not reported confirmed lead service lines in public inventories. However, data gaps exist—utilities are still mapping their systems. The best way to know if lead is reaching your home is to test your water directly.

How do I know if my house has a lead service line?

Homes built before the 1980s are at higher risk. Contact your water utility and ask if your address is on their lead service line inventory. You can also have a plumber inspect the pipe that enters your home.

What should I do if I'm worried about lead in my water?

Have your water tested by a certified lab—this is the most reliable way to know. While you investigate, flush your cold water tap for 30 seconds before drinking or cooking. If you have young children, contact your pediatrician.

Who is Charleston Water System and how do I contact them?

Charleston Water System (PWSID SC1010001) is the main public utility serving Charleston's 327,000+ residents. You can find contact information and inventory requests on their official website or your water bill.