| #P001 | chemical | health | guideline | Carbon tetrachloride | drinking water | MAC | 0.002 mg/L | The maximum acceptable concentration for carbon tetrachloride is 0.002 milligrams per litre (rounded). | Calculated by taking the tolerable daily intake 0.00071 mg/kg bw/day, multiplying by 70 kg, multiplying by 0.2, and dividing by 4.3 litre-equivalents. | high |
| #P002 | chemical | health | mandatory | Carbon tetrachloride | drinking water | requirement | 5 µg/L | The current U.S. EPA maximum contaminant level (MCL) for carbon tetrachloride | Based on the carcinogenic potential of carbon tetrachloride. | high |
| #P003 | chemical | health | guideline | Carbon tetrachloride | drinking water | requirement | 4.0 µg/L | The WHO established a drinking water guideline | Based on a NOAEL of 1 mg/kg from Bruckner et al. (1986) for hepatotoxic effects in rats. | high |
| #P004 | chemical | health | guidance | Carbon tetrachloride | drinking water | treatment_goal | 0.1 µg/L | The California EPA has developed a public health goal (PHG) of 0.1 µg/L (or 0.1 ppb) | Based on an increased incidence of hepatocellular carcinomas in mice | high |
| #P005 | chemical | health | mandatory | Carbon tetrachloride | drinking water | requirement | 0.5 µg/L | California's current drinking water standard for carbon tetrachloride | Referred to as the state maximum contaminant level (MCL) | high |
| #P006 | chemical | health | guideline | Carbon tetrachloride | drinking water | requirement | 3 μg/L | The Australian drinking water guideline for carbon tetrachloride | Based on a NOAEL of 1.2 mg/kg body weight per day for hepatotoxicity in mice. | high |