Beryllium in Drinking Water
Reference information plus historical EPA compliance records associated with beryllium.
EPA Limit (MCL)
4 ppb
EPA Goal (MCLG)
4 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
Intestinal lesions
Common Sources
Discharge from metal refineries, coal-burning factories
Treatment Considerations for Beryllium
Commonly cited treatment approaches include: Activated alumina, ion exchange. 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.
5,348
Historical Violation Records
3,488
Systems With Records
Historical Beryllium Records by State
| State | Records | Systems |
|---|---|---|
| Pennsylvania | 1,114 | 620 |
| Washington | 888 | 506 |
| North Carolina | 328 | 272 |
| Montana | 293 | 182 |
| Alaska | 275 | 143 |
| Oregon | 267 | 208 |
| Colorado | 217 | 143 |
| Connecticut | 203 | 135 |
| Ohio | 190 | 159 |
| West Virginia | 186 | 87 |
| Utah | 152 | 110 |
| Texas | 132 | 78 |
| Vermont | 87 | 67 |
| Virginia | 86 | 64 |
| Kentucky | 71 | 54 |
| Arizona | 70 | 44 |
| Illinois | 70 | 55 |
| Iowa | 69 | 65 |
| Missouri | 59 | 52 |
| Puerto Rico | 57 | 41 |
Systems With the Most Beryllium Violation Records
RIDGEFIELD PUBLIC WORKS
SEVEN ESTATES
PA AMERICAN AUDUBON
HIAWATHA WATER
COAL MOUNTAIN WATER
NOTTINGHAM MANOR M H COURT
WASHINGTON TOWNSHIP MUA
WASHINGTON TWP MUNI AUTH
WHISPERING PINES MHP
PAINT BRUSH HILLS
Frequently Asked Questions
What is Beryllium and why can it appear in drinking-water records?
Beryllium can be associated with drinking water through: Discharge from metal refineries, coal-burning factories.
What reference value does this page show?
The summarized EPA Maximum Contaminant Level is 4 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.