Alpha particles
For Alpha particles, regulator is US EPA (National Primary Drinking Water Regulations); limit is 15 picocuries per Liter (pCi/L); unit is pCi/L; limit type is MCL (Maximum Contaminant Level), recorded from its source on 2026-08-06; source re-checked 2026-09-16.
- Contaminant
- Alpha particles verified
- Regulator
- US EPA (National Primary Drinking Water Regulations) our reading
- Limit
- 15 picocuries per Liter (pCi/L) verified
- Unit
- pCi/L verified
- 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
Alpha particles | none ---------- zero | 15 picocuries per Liter (pCi/L)
— epa.gov, retrieved 2026-08-06
Source
- epa.govhttps://www.epa.gov/ground-water-and-drinking-water/national-primary-drinking-water-regulations