sewage treatment plant or at the point of discharge into the environment. It is the system of pipes, chambers, manholes, etc. that conveys the sewage

homeowners-guide-to-septic-systemsHomeowners guide to septic systems
from EldredgeSeptic, ago in
A guide for homeowners describing septic system types and important information to ensure trouble-free operation.

Private sewage system installation and land use change in Ozaukee County …
James A. LaGro, University of Wisconsin–Madison, published 1994, 54 pages