Continuous Monitoring and Adaptive Control for Enhanced Flood Control in Howard County, MD

The objective of this document is to estimate the expected volume of quantity control and waterquality benefit achieved through the installation of continuous monitoring and adaptive control(CMAC) on six stormwater management ponds in Howard County, Maryland (“the County”). Theponds evaluated as part of this document were chosen based on using the CMAC RetrofitScore developed by Opti and detailed in the “Prioritization Methodology for ContinuousMonitoring and Adaptive Control (CMAC) Projects in Howard County, MD” memorandumprovided to the County (May 1, 2019). Three stormwater management ponds were chosen forfurther evaluation based on the CMAC retrofit score and through conversations with the County.Three additional alternative ponds were evaluated as part of this analysis (totaling six). Siteswere selected based on their ability to mitigate flood risk through water quantity control usingCMAC to enable Howard County to become more resilient to flooding and stormwater hazards.