Skip Ribbon Commands
Skip to main content

Sewage System Permits

Permits are required for all sewage system installations and alterations with the exception of most Class 1 systems.  For more information download the Sewage Permit Process Backgrounder and Guide.

Sewage system permits and other services provided are subject to a fee schedule.

Options for Sewage Systems

The options for systems are divided into classes as described in Part 8 of the Building Code Act. The options include the following:

CLASS 1
Privies (portable, pail and vault), composting toilets, incinerating toilets, chemical toilets, re-circulating toilets and self-contained portable toilets: a
permit is not required for most of these systems with the exception of composting toilets that have an overflow drain of some sort. This drain must be connected to an approved class 3 cesspool. Class 1 systems are usually operated in conjunction with a class 2 greywater system which does, however, require a permit.

CLASS 2
Greywater systems
: these systems are intended for use with minimal plumbing. Typical plumbing includes a kitchen sink, a single bathroom sink and a shower or tub. A typical design consists of a mini-field layout with up to 9 metres of distribution piping. These systems are able to accept hot tub water.

CLASS 3
Cesspools: t
hese are used exclusively for composting toilet overflows or for the acceptance of the contents of a pail privy. 

CLASS 4
Septic systems: conventional and new technology (tertiary) type systems are available for the full range of plumbing. Conventional systems consist of either trench type systems or filter bed systems. Tertiary type systems include media based, air type or other patented technology type systems. The size of the either system is based on the daily design flow rate.

Tertiary type systems can have a smaller footprint area than conventional septic systems. Maintenance and sampling agreements are required for long-term compliance monitoring with these systems.
 
CLASS 5
Holding tank systems: h
olding tanks are sometimes allowed where there is existing development, a malfunctioning system and no area to install a Class 4 system. These systems are very expensive to operate over time as all of the plumbing, including greywater, needs to be connected into the system.
​​​​​​​​