Organic Low Risk
Heptachlor
Liver damage, increased cancer risk
Sources: Insecticide residues
Regulatory Limit
Zero EPA Limit (0.4 μg/L)
*Levels above the EPA limit are considered unsafe.
MCL Value
0.4 μg/L
Goal (MCLG)
0 μg/L
Violating Systems
0 nationwide
Affected Population
0 estimated
Avg Detected Level
0 μg/L in affected systems
Health Risk Assessment
Exposure to Heptachlor in drinking water is regulated because of its potential to cause liver damage, increased cancer risk. The EPA has set the Maximum Contaminant Level (MCL) at 0.4 μg/L to protect public health.
Note: Long-term exposure above the MCL can significantly increase health risks.
Detailed Health Effects
Liver damage, increased cancer risk
Common Sources
1
Insecticide residues National Overview
Total Tests
0
Violations Found
0
Violation Rate
0%
Treatment Methods
Granular activated carbon
Is this in your water?
Find out if your local water system has detected Heptachlor.
Frequently Asked Questions
What is Heptachlor and why is it in drinking water?
Heptachlor is a organic contaminant. Common sources include: Insecticide residues.
What are the health effects of Heptachlor in drinking water?
Liver damage, increased cancer risk
What is the EPA limit for Heptachlor?
The EPA Maximum Contaminant Level (MCL) for Heptachlor is 0.4 μg/L.
How can I remove Heptachlor from my water?
Effective treatment methods for removing Heptachlor include: Granular activated carbon.
How do I test my water for Heptachlor?
You can check your water system's annual Consumer Confidence Report for Heptachlor levels, or use a certified home water testing kit. WaterQ provides the latest EPA test data for all public water systems.