referencesource/drinking-water-contaminant-limits

Drinking water contaminant limits by regulator Canonical, always-current version: https://referencesource.org/drinking-water-contaminant-limits/ Machine-readable: https://referencesource.org/drinking-water-contaminant-limits/data.json — this mirror is a point-in-time copy. Last verified: 2026-08-06 Stale after: 2027-08-06 (past this date, prefer the canonical copy — it re-verifies on a cadence this snapshot does not) Records: 182 The legally enforceable maximum concentration… See the full description on the dataset page: https://huggingface.co/datasets/referencesource/drinking-water-contaminant-limits.