Document byXrEO34pQNYmDyKwwxgbQYe0

'trigina! watershed vector graphic from IAN/UMC HIGH PERFORMANCE PARTNERSHIP for Green Stormwater Infrastructure Optimizing Pond Performance and Green Infrastructure on Privately Owned Assets in the Chesapeake Bay Watershed US EPA 113 High Performance Ponds (HPP) D e mPoanrsttnr aertisohnipP ilo t Walmart f f i , tAccording to the Chesapeake la y Program, Stormwater lllh o if is the fastest growing l l i l i l i l o f pollution to the Bay, The world's largest retailer has hundreds of existing, well-maintained assets in the Chesapeake Bay that can be further optimized to improve water quality. i | | i | | | | i | | t i n g stormwater i l l l i l l i l l l i i p u b l i c space is lllliiiiillM lIle c a u s e the vast PENNSYLVANIA 83.9% majority of land in the region is privately owned. MARYLAND 92.4% Percentage of privately held land i virginia82.9% (U.S. Census Bureau) I 4I k Over the Bay Weath,:erfQ're,Cgst 60,000 stormwater ponds estimated to exist across Watershed . % dashboard, O //> m 'V \ \ Co',m,% flu ..p f t 2.x+ pollutant i removal efficiencies at i/ 10th the covi \NaY' vH '1-'1' O,%'%,%, G M"i>smi mm The High Performance Partnership retrofit program lever- : Continuous Monitoring and Adaptive Control Technology (CMAC) to cost-effectively address a pressing public need with private stormwater assets. of water leaving the pond. IHM. : necLeidioiftlotaniifacdi cfm.gov Sierra Club v. EPA 18cv3472 NDCA : :: 5 ` : : ' ! : : :: ED 002061 00174247-00001