| Input parameter | Units | Values | References |
| THM Conc. in water (Cw) | mg/L | See tables | Present study |
| Ingestion rate (IR) | L/day | 2.0 | USEPA (1997) |
| Exposure frequency (EF) | days/year | 365 | Lee et al. (2004) |
| Exposure duration (ED) | year | 70 | USEPA (1997) |
| Average exposure time (AT) | days/year | non-carcinogen: 30 × 365 carcinogen: 70 × 365 | USEPA (2009) |
| Body weight (BW) | kg | 70 | Lee et al. (2004) |