Sample data from Engineering Database — 375 reference tables, deterministic calculators, and Engineering AI. Sign up free
Water Quality Standards: PFHxS
EPA and WHO drinking water quality standards — MCLs, MCLGs, WHO guideline values, secondary standards, health effects, and treatment methods for regulated contaminants
| contaminant | CAS number | EPA MCLG mg per L (mg/L) | EPA MCL mg per L (mg/L) | EPA MCL note | contaminant category | health effects | standard | treatment methods |
|---|---|---|---|---|---|---|---|---|
| PFHxS | 355-46-4 | 0 | 0.00001 | MCL effective 2024; 10 ng/L | organic | Thyroid and immune effects | EPA PFAS NPDWR 2024 (40 CFR 141) | Granular activated carbon; reverse osmosis; nanofiltration |
What else is in Engineering Database
Iron Engine ↗Engineering AI at ironengine.ai
AI built for engineering. Searches the engineering database, performs calculations, gives source-backed engineering insights.
Get started for free ↗Reference Data375 engineering tablesMaterial properties, pipe and shape dimensions, code tables, and electrical ratings across mechanical, civil, chemical, electrical, materials, and manufacturing engineering.
Browse dataCalculatorsDeterministic engineering calculatorsSizing, checking, and conversion tools that run against the reference tables. Inputs are code-compliant, outputs are traceable to the source standard.
Browse calculators