WALTHAM WATER DEPARTMENT Lead Service Line Inventory
What you need to know
Waltham Water Department serves about 65,000 residents in Waltham, Massachusetts. Lead service lines (LSLs) are pipes that can carry water from the main water line in the street to your home. If your home was built before 1986, there's a higher chance your service line contains lead.
The EPA requires all water utilities to maintain an inventory of lead service lines and share that information with the public. This page tells you what Waltham Water Department currently has on record about lead in their system.
Current inventory status
Waltham Water Department has not yet completed a full inventory of lead service lines. As of now, zero service lines have been documented and categorized in their public records. This doesn't mean there are no lead lines in Waltham—it means the utility is still in the process of identifying them.
Most utilities are working through this step-by-step, inspecting records, testing lines, or surveying properties. The federal government provided funding through the Infrastructure Investment and Jobs Act to help utilities complete these inventories faster.
What this means for your home
If you live in Waltham and your home was built before the mid-1980s, your service line could be lead. The only definitive way to know is to have it tested. You can:
- Contact Waltham Water Department directly and ask whether your specific address has a known lead service line.
- Hire a plumber to inspect the visible portion of your service line (usually visible in your basement or crawl space).
- Request a water test through the utility or a certified lab to measure lead levels coming from your tap.
Lead exposure poses real health risks, especially for young children and pregnant people. If you're concerned, the CDC has practical guidance on reducing exposure while you investigate.
Next steps for residents
- Call Waltham Water Department and ask if they have any records of lead service lines at your address.
- Request water testing if you're concerned; the utility may offer this free or at low cost.
- Check your home's age and construction records—homes built before 1986 are at higher risk.
- Visit the CDC's lead and drinking water page for health information and reduction strategies.
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Key figures
| Total inventoried lines | 0 |
|---|---|
| BIL/IIJA funding received | — |
| Replacement plan status | Not reported |
| Utility's LCRR inventory | Not provided |
Frequently asked
Does Waltham have lead in the water?
Waltham Water Department has not yet completed a full inventory of lead service lines. Lead levels in your water depend on whether your home's service line and internal pipes contain lead. Contact the utility directly to ask about your address.
How do I know if my house has a lead service line?
Call Waltham Water Department and ask if they have records for your address. You can also hire a plumber to inspect the visible portion of your service line, or request a water test through the utility.
Is lead service line water safe to drink?
Lead can dissolve into water, especially if water is corrosive or sits in the pipes for hours. The CDC recommends flushing your tap before drinking if water has sat unused, and testing your water if you suspect lead exposure, particularly if children live in your home.
How much does it cost to replace a lead service line?
Replacement costs vary widely based on line length and soil conditions, typically ranging from $3,000 to $25,000. Contact Waltham Water Department to ask if they offer cost-sharing or replacement programs funded by federal infrastructure grants.