Tetrachloroethylene (PCE) in Drinking Water
Reference information plus historical EPA compliance records associated with tetrachloroethylene (pce).
EPA Limit (MCL)
5 ppb
EPA Goal (MCLG)
0 ppb
Category
Organic
Regulatory values are a concise reference, not legal or medical advice. Confirm the current standard and rule-specific details on EPA.gov.
Health Effects
Liver problems, increased cancer risk
Common Sources
Discharge from factories, dry cleaners
Treatment Considerations for Tetrachloroethylene (PCE)
Commonly cited treatment approaches include: Granular activated carbon. 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.
13,581
Historical Violation Records
5,596
Systems With Records
Historical Tetrachloroethylene (PCE) Records by State
| State | Records | Systems |
|---|---|---|
| Pennsylvania | 3,626 | 1,123 |
| Washington | 1,936 | 711 |
| Alaska | 1,704 | 325 |
| Oregon | 650 | 363 |
| Connecticut | 469 | 240 |
| Arizona | 389 | 180 |
| Montana | 346 | 176 |
| Oklahoma | 343 | 151 |
| Colorado | 334 | 199 |
| Ohio | 315 | 206 |
| North Carolina | 314 | 167 |
| Illinois | 312 | 162 |
| West Virginia | 302 | 98 |
| Texas | 274 | 95 |
| Utah | 244 | 130 |
| Puerto Rico | 220 | 92 |
| Vermont | 193 | 114 |
| Virginia | 170 | 103 |
| Kentucky | 156 | 97 |
| New Hampshire | 150 | 106 |
Systems With the Most Tetrachloroethylene (PCE) Violation Records
LAKE FOREST PARK WATER DISTRICT
SEVEN ESTATES
COAL MOUNTAIN WATER
MARBLE WATER SYSTEM
PINNACLE WATER ASSOCIATION
NOTTINGHAM MANOR M H COURT
FOREST PARK TC
SUNRISE LAKES SEC 12
WARMINSTER MUNICIPAL AUTHORITY
NATIVE VILLAGE OF SLEETMUTE
Frequently Asked Questions
What is Tetrachloroethylene (PCE) and why can it appear in drinking-water records?
Tetrachloroethylene (PCE) can be associated with drinking water through: Discharge from factories, dry cleaners.
What reference value does this page show?
The summarized EPA Maximum Contaminant Level is 5 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.