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Lead service lines in Spearfish, SD

31 water utilities serve Spearfish, with approximately 16,193 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 Spearfish, SD

What you need to know

Spearfish serves about 16,000 residents through 31 water systems. The largest is the City of Spearfish public water system, which serves roughly 12,000 people.

Lead gets into drinking water primarily through old lead service lines—the pipes that connect your home to the water main under the street. Spearfish's water systems have not yet reported known lead service lines or galvanized pipes (which can also leach lead) to state regulators. However, "no reports" does not mean "none exist"; many systems nationwide are still inventorying their lines.

Why this matters

Lead exposure, especially for children under 6, can affect brain development and learning. Even low levels matter. The CDC recommends testing your home's water if your service line is unknown or confirmed lead, or if your home was built before 1986 (when lead solder and fixtures were still in use).

What South Dakota requires

South Dakota water systems must comply with the federal Lead and Copper Rule, which sets a maximum contaminant level of 15 parts per billion in treated water. Systems must maintain updated inventories of service line materials and report findings to the state.

Find your water system

The five largest systems serving Spearfish are listed here. If you're in one of these service areas, contact the utility directly to ask:

  • Do you have a current service line inventory?
  • Are there any known lead or galvanized lines on my block?
  • Can you test my tap water for lead?

Most utilities can provide results within 1–2 weeks of sampling.

If your home has a lead service line

A lead service line doesn't automatically mean unsafe water. Water chemistry, corrosion control treatment, and home plumbing also affect lead levels. Your utility can explain what they're doing to minimize leaching. You can also use a point-of-use filter certified for lead removal (NSF Standard 42 or 53).

Next steps for residents

  • Contact the City of Spearfish water system (or your local utility if outside city limits) to ask about your service line material and request a water test
  • Test your tap water if your line is unknown or lead, especially if you have young children
  • Flush your taps before drinking or cooking if water has sat in pipes overnight; let it run 30 seconds to a minute
  • Consult your pediatrician or the CDC if you have health concerns about lead exposure

Utilities serving Spearfish

Common questions

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

Contact your local water utility (usually the City of Spearfish for residents in city limits) and ask for your service line inventory records. You can also look at your water bill—it often lists the utility's contact number. Many utilities will also send someone to inspect or test your line.

Is Spearfish water safe to drink?

Spearfish water systems are required to test for lead and comply with federal safety limits. However, if you have an old home or unknown service line, testing your own tap water can give you peace of mind. Contact your utility for a free or low-cost test.

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

Request a water test from your utility, avoid using hot tap water for drinking or cooking (it concentrates lead), and flush pipes for 30 seconds before use. If you have young children, talk to your pediatrician about whether additional steps are needed.

Can I remove lead from my tap water myself?

Yes. Filters certified for lead removal (look for NSF Standard 42 or 53) work on faucets or pitchers. However, the best long-term fix is replacing a lead service line, which requires contacting your utility and local plumber.