Virginia · population 25,180
Lead pipes in Herndon, VA
18 lead or galvanized lines to replace
Most of Herndon (population 25,180) gets its water from Fairfax County Water Authority. That system reported 16 lead and 2 galvanized-requiring-replacement service lines out of 290,219, with 115 more of unknown material.
<0.1% of Fairfax County Water Authority's service lines are lead or galvanized requiring replacement, lower than the Virginia average (0.6%) and lower than the national average (3.1%).
- Lead <0.1%
- Galvanized (replace) <0.1%
- Unknown <0.1%
- Non-lead 100%
Latest lead test for Fairfax County Water Authority (Jan 2021–Dec 2023): 1.2 ppb at the 90th percentile, against a 15 ppb federal action level. Full test history.
Compliance record: EPA lists no Lead and Copper Rule violations since 2015 for Fairfax County Water Authority.
Water systems serving Herndon
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| Fairfax County Water AuthorityMain system | 16 | 2 | 115 | <0.1% |
| Loudoun Water - Central SystemServes nearby areas | 0 | 0 | 0 | 0% |
Matched from EPA water system service area boundaries and the cities each system reports serving. Edges of the city may be served by a neighboring system; your water bill names your utility.
Check your address in Herndon
The counts above cover the whole water system. To see whether your line is lead, look up your address on Fairfax County Water Authority's official inventory. Utilities had to make these public by October 16, 2024.
No map yet? Do the 2-minute scratch and magnet test.
Protect your drinking water
If your line is lead, galvanized or unknown, use a filter certified to NSF/ANSI 53 for lead for drinking, cooking and baby formula, and use only cold water.
Choosing a lead-certified filter · Testing your water · Replacement cost
Nearby cities
- Viennano lead reported
- Fairfax18 lead + galv. lines
- Falls Church18 lead + galv. lines
- Leesburg55 lead + galv. lines
- Manassas Parkno lead reported
- Manassasno lead reported
- Haymarket11 lead + galv. lines
- Alexandria787 lead + galv. lines
Check another water system
Questions
Does Herndon, VA have lead pipes?
Yes. Fairfax County Water Authority, which serves Herndon, reported 16 lead and 2 galvanized-requiring-replacement service lines, plus 115 of unknown material.
Who supplies water to Herndon?
EPA's service area maps place most of Herndon in Fairfax County Water Authority's service area (PWSID VA6059501). Loudoun Water - Central System also serves parts of the city or nearby areas.
How do I check whether my Herndon home has a lead service line?
Search your address on Fairfax County Water Authority's service line inventory map. You can also scratch the pipe where water enters your home: lead is soft, dull gray, scratches to shiny silver and doesn't attract a magnet.
When will lead pipes in Herndon be replaced?
EPA's Lead and Copper Rule Improvements require most systems to replace lead and galvanized-requiring-replacement lines by December 31, 2037. Ask Fairfax County Water Authority whether your street is scheduled and whether it covers the private side.