Continuous Monitoring and Adaptive Control (CMAC) Retrofit Memo

Description

In November 2016, the USWG unanimously approved a proposal to credit the Continuous Monitoring and Adaptive Control (CMAC) technique for retrofitting existing stormwater BMPs, pursuant to the previously approved Stormwater Retrofit Expert Panel Report. The technique utilizes sensors to make real time weather forecasts to make automated decisions to actively manage stormwater storage and flows within existing stormwater ponds to improve their pollutant removal performance.

The CMAC proposal directly maps into two currently approved stormwater retrofit categories: enhancement of existing BMPs or conversion of existing BMPs .A description of the CMAC approach and the rationale for integrating it into the retrofit credit system is outlined in this memo and attachments.