While there is not a dedicated poster session at MuniCon 2017, a number of posters will be on display for the duration of the Conference detailing research, processes, statuses and/or results over a range of topics.

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Stormwater Infiltration Feasibility Assessment for Seattle-Tacoma International Airport

Tom Atkins, PE, LG-Aspect Consulting

To comply with its NPDES permit the Port of Seattle is developing LID BMP guidelines for future development and redevelopment projects at Seattle-Tacoma International Airport. Existing GIS layers, geologic data, and other relevant information was used to identify shallow and deep stormwater infiltration opportunities across a broad landscape. Information sources included GIS data from local municipalities and agencies, surficial quadrangle geologic maps, topographic survey information and LiDAR elevation data, and subsurface hydrogeologic information from boring logs.

Infiltration feasibility was based on evaluation of factors that affect infiltration potential and identification of units that represent unique combinations of these factors. GIS layers of each factor were created and the infiltration feasibility was evaluated. Shallow and deep infiltration maps were created highlighting areas with good, moderate, and poor stormwater infiltration feasibilities, and the results are now being incorporated into the Port's Stormwater Management Manual for Aviation Division Property.

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Trash Talk: New data tools for citizen science, outreach, IDDE

Margaret McCauley, U.S. Environmental Protection Agency; Sydney Barnes-Grant, University of Washington Intern

The Trash Talk presentation will illustrate contemporary and emerging trash tracking and data analysis technology. Providing insight on the strengths and weakness of the available tools addressing storm water, street sweeping, and trash collection methods; the poster can aide in program improvement throughout different jurisdictions. Permittees can take away ideas for how they can incorporate these technologies and evaluate whether trash management is worth a different approach.

National View of Water Quality Outcomes Achieved Using MST Technology

James Herrin, Source Molecular Corporation

Identifying sources of fecal pollution is important for effective watershed management. The need to more accurately identify where the contamination is coming from and how much bacteria is present has spurred the development of the U.S. Environmental Protection Agency's (EPA's) source ID and Digital Polymerase Chain Reaction (PCR) technology. EPA's patented genetic testing methods developed specifically to detect human, cattle, chicken, and dog fecal pollution have undergone rigorous review and been proven to be more sensitive and more accurate. The upcoming EPA standard for microbial source tracking (MST) will enable watershed managers to use genetic-based methods for broader applications. It also will increase the credibility of MST as a useful source of information in assessing potential sources of fecal contamination and possible public health risks. Digital PCR is an advanced technology that provides absolute quantification of the target DNA, allowing water managers to know the source of fecal pollution as well as exactly how much fecal bacteria is in the water. It also improves sensitivity, allowing watershed managers to find the fecal source even if it has been some time since the pollution event, and creates the possibility of direct pathogen detection.

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Bioretention Hydrologic Performance across Western Washington

Bryan Berkompas, Aspect Consulting LLC; Jenny Saltonstall, Associated Earth Sciences, Inc.

The Bioretention Hydrologic Performance Study was funded by Stormwater Action Monitoring and is evaluating the actual hydrologic performance of ten bioretention facilities across the Puget Sound region. The study is ongoing and this poster will provide an overview of the study design and methods and a discussion of the hydrologic and hydrogeologic/geotechnical evaluations a few of the bioretention facilities based on preliminary results from data collected in the fall of 2016.

Eastern Washington BMP Effectiveness Studies Posters

Pursuant to the Eastern Washington (EW) Phase II Municipal Stormwater (MS4) Permit Section S8.B, permittees are required to "collaborate with other permittees to select, propose, develop, and conduct Ecology-approved studies to assess, on a regional or sub-regional basis, the effectiveness of permit-required stormwater management program activities and best management practices (BMPs)" [1]. In response to these requirements, the Eastern Washington Stormwater Group (EWSG), which consists of staff from the cities and counties covered under the permit, worked collaboratively and identified 24 study ideas (Phase 1) and developed a ranked list of the top 14 studies (Phase 2). Phase 1 and Phase 2 were submitted to Washington State Department of Ecology (Ecology) on June 30, 2015 and June 30, 2016 respectively. These studies are commonly referred to as the "EW Effectiveness Studies Development Project" and the current Phase 3a focuses on developing the detailed study design proposal for the 13 studies listed below. Ecology Gross Grants have assisted in the initial development of study ideas and detailed study design proposals, and as part of the grant requirements, the EWSG is hosting a Public Open house. During this time, the public is welcome to stop by and view posters for each of the studies which provide an overview the reason why the studies are being conducted, plans for conducting the studies, and how these studies may improve the stormwater management programs in eastern Washington.