Lead in Drinking Water
Reference information plus historical EPA compliance records associated with lead.
EPA Limit (MCL)
15 ppb
EPA Goal (MCLG)
0 ppb
Category
Inorganic
Regulatory values are a concise reference, not legal or medical advice. Confirm the current standard and rule-specific details on EPA.gov.
Health Effects
Kidney problems, high blood pressure, developmental delays in children
Common Sources
Corrosion of household plumbing, lead service lines
Treatment Considerations for Lead
Commonly cited treatment approaches include: Reverse osmosis, distillation, carbon block filters. Choose treatment only after a certified water test identifies the substance and concentration; verify NSF/ANSI certification and consult a qualified local professional when needed.
10
Historical Violation Records
10
Systems With Records
Historical Lead Records by State
| State | Records | Systems |
|---|---|---|
| New York | 4 | 4 |
| California | 3 | 3 |
| Delaware | 2 | 2 |
| Rhode Island | 1 | 1 |
Systems With the Most Lead Violation Records
METLAKATLA
AUSABLE HEIGHTS WATER SYSTEM
LINDHBROOK WATER COMPANY
TAHOE PARK WATER CO - SKYLAND/NIELSEN
ALLEGHANY COUNTY W.D.
QUILEUTE WATER SYSTEM
LIGHTHOUSE APARTMENTS
BALSAM CREST HOMEOWNERS ASSOC
BERRY CREEK COMMUNITY SERVICE DIST
ADIRONDACK APARTMENTS
Frequently Asked Questions
What is Lead and why can it appear in drinking-water records?
Lead can be associated with drinking water through: Corrosion of household plumbing, lead service lines.
What reference value does this page show?
The summarized EPA Maximum Contaminant Level is 15 ppb. Some substances use action levels or rule-specific thresholds instead, so verify the current EPA standard.
Does a historical violation record mean it is in my tap today?
No. A compliance record may be historical or resolved. Use the latest Consumer Confidence Report or a certified test for current local conditions.