Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Sites in this study characterized by source water and disinfectant type
| Source water type | Disinfectant | Number of sites |
|---|---|---|
| Groundwater | None | 2 |
| Groundwater | Chlorine | 8 |
| Groundwater | Chloramine | 0 |
| Surface water | None | 0 |
| Surface water | Chlorine | 16 |
| Surface water | Chloramine | 13 |
| Surface water | Chlorine dioxide | 1 |
