Installation code for decentralized wastewater systems
|Publication Date:||1 January 2012|
This Code covers decentralized wastewater systems that use soil absorption systems for infiltration, dispersal, and final treatment of wastewater and serve residential, institutional, and commercial establishments. Note: In this Code, the term "system" refers to a decentralized wastewater system.
This Code also covers sewage holding tanks.
Note: Holding tanks are not a self-sustaining method of on-site wastewater management because they rely on the availability of an adequate off-site wastewater treatment facility, which generally creates a load on municipal infrastructure. Owners of holding tanks also incur ongoing costs for the removal and hauling of wastewater to approved treatment facilities. The use of a holding tank system as the wastewater management solution for a property is subject to the requirements of the local authority having jurisdiction.
This Code does not cover (a) lagoons or surface discharge of effluent; and (b) wastewater generated by industrial processes.
This Code does not specify requirements for, or provide direction on, the selection of the type of system and required effluent quality that might be needed to manage cumulative impacts
(a) on a multi-lot, subdivision, or watershed scale caused by multiple decentralized wastewater systems; or
(b) where systems are located in a sensitive receiving environment.
Note: The determination of treatment objectives, effluent quality, and system types required for a multi-lot subdivision should consider cumulative impact or loading limits. Loading limits required to prevent unacceptable impacts on groundwater or surface water, caused by the total wastewater generated from multi-lot subdivisions or where needed to protect a sensitive receiving environment, should be considered in the selection and use of decentralized wastewater treatment systems.