There are specific requirements for “engineered soil” used in all types of bioretention systems, including rain gardens. Engineered soil is not topsoil. For specific guidance about soil mix, soil bed requirements, and best practices for soil amendments such as compost, consult Chapter 9.1 “Bioretention Systems” of the NJDEP Stormwater BMP Manual.
The Developers Green Infrastructure Guide 2.0 breaks down New Jersey’s Stormwater Rule amendments and helps developers and decision-makers understand more clearly green infrastructure options and advantages, compare alternatives, evaluate costs and benefits.
The Developers Green Infrastructure Guide 2.0 is brought to you by the Developers Green Infrastructure Task Force, a partnership between New Jersey Future and the New Jersey Builders Association.
The Task Force gratefully acknowledges the financial support of the William Penn Foundation, which made this project possible.
