Reference Source

Cyanide (as free cyanide)

For Cyanide (as free cyanide), regulator is US EPA (National Primary Drinking Water Regulations); limit is 0.2; unit is mg/L; limit type is MCL (Maximum Contaminant Level), recorded from its source on 2026-08-06.

Contaminant
Cyanide (as free cyanide) verified
Regulator
US EPA (National Primary Drinking Water Regulations) our reading
Limit
0.2 verified
Unit
mg/L
Limit type
MCL (Maximum Contaminant Level) our reading
Sourceepa.gov
Verified2026-08-06
Review by2027-08-06
DatasetDrinking water contaminant limits by regulator

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

Cyanide (as free cyanide) | 0.2 | 0.2

epa.gov, retrieved 2026-08-06

Source

Last verified against source: 2026-08-06. Due for re-check by 2027-08-06. This page as Markdown · OKF bundle · full dataset as JSON.