Heptachlor
For Heptachlor, regulator is US EPA (National Primary Drinking Water Regulations); limit is 0.0004; unit is mg/L; limit type is MCL (Maximum Contaminant Level), recorded from its source on 2026-08-06.
- Contaminant
- Heptachlor verified
- Regulator
- US EPA (National Primary Drinking Water Regulations) our reading
- Limit
- 0.0004 verified
- Unit
- mg/L
- Limit type
- MCL (Maximum Contaminant Level) our reading
Values marked our reading are our classification of what the source says — the source does not print them in those words. The quote below is the evidence for each one; judge it yourself.
What the source says
Heptachlor | zero | 0.0004
— epa.gov, retrieved 2026-08-06
Source
- epa.govhttps://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations