Pathogens in Urban Stormwater Systems:  Tools for the Municipal Stormwater Manager

Watch recording


Jane Clary, Vice President of Water Quality and Regulatory Affairs, Wright Water Engineers, Denver, Colorado


As of 2020, EPA has identified over 187,000 stream miles throughout the U.S. as impaired or threatened due to pathogens, based on elevated levels of fecal indicator bacteria.  As Total Maximum Daily Loads (TMDLs) are developed for these streams, local governments and municipal stormwater managers are faced with the challenging task of identifying and mitigating sources of fecal indicator bacteria loading to streams.  In some cases, sources such as leaking sanitary sewers can be identified and controlled, but in others, natural sources such as birds cause stream standards attainment to be elusive. In many cases, a combination of issues is present. This presentation will provide an overview of approaches and tools for identifying and reducing fecal indicator bacteria loading to streams.  The latest stormwater control measure performance findings will be summarized based on the 2020 analysis of the International Stormwater BMP Database. Regulatory constraints and options will be explored, with discussion continued with the invited panelists.

Speaker Bio

Jane Clary has 27 years of water resources consulting experience with Wright Water Engineers in Denver, CO.  Jane has worked with municipalities and counties in multiple states to develop approaches and guidance for meeting stormwater discharge permit requirements and to address watershed-scale water quality issues, particularly E. coli. She serves as a long-term Project Manager on the International Stormwater Best Management Practices (BMP) Database project.  In 2016, Jane served as the lead editor and co-chair of the Environmental and Water Resources Institute (EWRI) publication Pathogens in Urban Stormwater Systems.  She recently completed a three-year, governor-appointed term on the Colorado Water Quality Control Commission and is the Vice-chair of the Urban Water Resources Research Council of EWRI-ASCE. Jane earned a B.S. in Economics from Vanderbilt University and an M.S. in Environmental Science from the University of Colorado.

Jane Clary photo