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Lead service lines in Mount Pleasant, SC

4 water utilities serve Mount Pleasant, with approximately 91,798 people served.

Last verified from EPA SDWIS + utility inventories: 2026-04-14
Known lead
0
Galvanized
0
Unknown
0
% unknown
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Lead Service Lines in Mount Pleasant, SC

Mount Pleasant serves nearly 92,000 residents across four water systems. The good news: no confirmed lead service lines have been reported in the available inventory data. However, that doesn't mean lead pipes don't exist in your neighborhood—it may mean your utility hasn't finished surveying yet.

What we know about Mount Pleasant's water systems

The largest system, Mount Pleasant Water Works, serves about 91,500 people. Three smaller systems serve mobile home parks and a campground. None of these utilities have reported known lead service lines in their current inventories, and none have reported galvanized steel pipes (which can also leach lead).

That said, inventory data can lag reality. Many utilities are still in the early stages of mapping their pipes, especially if they serve older neighborhoods built before 1986, when lead pipes were common.

Should you be concerned?

Your risk depends mainly on when your home was built and what material connects your meter to the street. Homes built before 1986 are more likely to have lead service lines. If you live in a pre-1980s neighborhood, it's worth checking.

The best way to know for sure: contact Mount Pleasant Water Works directly and ask if your address has been surveyed. They can tell you:

  • Whether your service line is lead, copper, galvanized, or plastic
  • If your property hasn't been surveyed yet, when they plan to inspect it
  • What testing or treatment options they offer

If your water tests positive for lead, the EPA and CDC recommend immediate steps—contact your water utility and pediatrician if children live in your home.

Next steps for residents

  • Contact your water utility at Mount Pleasant Water Works (PWSID: SC1010002) or your local system if you're in a mobile home park to ask about your service line status.
  • Request a water test if you're unsure about your pipes—your utility may offer free or low-cost testing.
  • Check your home's age and ask a plumber to visually inspect the service line entering your property if you suspect lead.
  • Visit the EPA's lead and copper rule page for more details on how utilities are required to track and report lead inventories.

Utilities serving Mount Pleasant

Common questions

Does Mount Pleasant, SC have lead service lines?

No confirmed lead service lines have been reported in the available inventory data for Mount Pleasant's water systems. However, inventories are still being completed, so older neighborhoods may have lead pipes that haven't been surveyed yet.

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

Contact Mount Pleasant Water Works directly and provide your address—they can tell you if your property has been surveyed and what material your service line is made of. If they haven't surveyed yet, ask when they plan to.

What should I do if my water tests positive for lead?

Contact your water utility immediately and talk to your pediatrician if children or pregnant people live in your home. The CDC and EPA have guidance on reducing exposure and next steps.

Are older homes in Mount Pleasant more likely to have lead pipes?

Yes—homes built before 1986 are at higher risk since lead pipes were legal and common until then. If you live in a pre-1980s neighborhood, it's worth asking your utility if your address has been surveyed.