Historically, internal household drainage
diagrams may not always be available.
For a fee, Council will search its
files for details of household drainage lines which carry wastewater to the
reticulated sewerage system or septic disposal system (septic tank etc).
To apply for an Internal Drainage Diagram find the Related Link - Certificates Online
For further information on Internal
Drainage Diagrams contact Shoalhaven City Council’s Building and Compliance
02 4429 3211.