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.
a Single-line diagram of sewer network Arrudas, showing the population served, flow rates, and distances between sampling points. b Single-line diagram of sewer network Onça, showing the population served, flow rates, and distances between sampling points.
