EWRG June Meeting Announcement – Plant Selection for Stormwater Management Facilities

DATE:    Wednesday, June 24, 2015
PLACE:  Hawthorne Lucky Lab, 915 SE Hawthorne Blvd, Portland
TIME:     11:30 a.m. Networking, 12:00 – 1:00 p.m. Presentation
SPEAKER:  Jeremy Person PLA, LEED AP
TOPIC:  Plant Selection for Stormwater Management Facilities

For the past 10 years, the Bureau of Environmental Services (BES) has required the control and treatment of stormwater runoff by way of vegetated stormwater management facilities (SMFs).  SMFs use a combination of soil and plants to detain, treat and infiltrate runoff from roads, roofs and other paved surfaces.  The 2014 Stormwater Management Manual (SWMM) published by BES outlines the function, design and maintenance requirements of SMFs, but does not explain the role of plants in stormwater facilities.  Therefore, designers are left with little to inform their plant selections other than typical landscape considerations which may conflict with the specialized needs of the SMF.

This presentation will outline a framework for the plant selection process for SMFs.  While its basis will be specific to BES facilities built in Portland, Oregon, the intent is to identify specific characteristics of plants rather than the plants themselves, which vary by region.  By identifying important characteristics in plants, designers will be able to focus on the most appropriate plant palette to maximize facility functions.

Jeremy Person is a professionally registered landscape architect for the City of Portland’s Bureau of Environmental Services.  Jeremy has worked in the Watershed Revegetation Program at BES since 2007, where his main responsibilities are design and project management of stormwater treatment and natural area restoration projects.  Sustainability and regenerative design have been and continue to be a key component of Jeremy’s professional work.  His recent projects for the city include several large stormwater treatment facilities along I-5 as well as stormwater and habitat improvements on Powell Butte.  He is currently involved in the revision of the BES Greenstreet Details and the Stormwater Management Manual.  Prior to public service, Jeremy worked in private sector offices in Oregon, California and Ohio, on projects ranging from large-scale mixed-use developments and subdivision planning, to smaller residential properties.  He has a Bachelor of Science in Landscape Architecture from the Ohio State University and a Master’s of Landscape Architecture from California State Polytechnic University, Pomona.  Jeremy is an Oregon registered Landscape Architect and is LEED AP accredited.

Robert Léger on SLOPES V Water Quality Compliance

Robert LegerAfter a month off, the EWRG community came out in full force for the May presentation. Robert presented on SLOPES V compliance a federal permitting process regulated by the Army Corps and the National Marine Fisheries Service, which is essentially a shortcut to meeting the Endangered Species Act. His presentation lead to excellent conversation and discussion. See attached for Robert’s presentation.

Robert’s presentation explained his methodology of meeting the water quality flow requirement for SLOPES V, which states a facility must “…accept and fully treat the volume of water equal to 50% of the cumulative rainfall from the 2-year, 24-hour storm for that site…”

Robert posited that the City of Portland (COP) and Clean Water Services (CWS) water quality standards already meet this requirement, and went about showing this to be so depending on facility design.

Breaking apart a Type-1A hydrograph, Robert did a volume analysis and determined that a water quality facility designed to meet COP standards treats 90% of the 2-year event, while a CWS facility treats 74% of the 2-year event (for the projects he presented on see attachment). The facilities that he designed to meet local requirements required no expansion or increase in capacity to meet the Federal requirements.

He has received positive feedback from the National Marine Fisheries Service.

Stormwater Symposium – Call for Abstracts (Due May 22nd)

stormwater symposium logoWe welcome you to submit presentation abstracts for the 2015 Sustainable Stormwater Symposium hosted jointly by APWA and ASCE-EWRG.

Rules, guidelines, and awards are provided on the Symposium website. Preliminary technical session topics include:

  • Retrofitting Existing Development for Water Quality and Quantity Control;
  • Emerging Contaminants, Contaminated Sites, and Industrial Runoff;
  • Managing and Monitoring Construction Site Stormwater;
  • Model and Database Applications to Support Planning and Design;
  • Green Stormwater Infrastructure Case Studies;
  • Transportation Runoff Management, BMP Monitoring and Maintenance;
  • Integrated Watershed Planning;
  • Alternative Compliance (e.g., Pollutant Trading, Ecosystem Services, and Watershed-Based Mitigation)

Abstracts are due by 5 pm PST on May 22nd, 2015.

For additional information, invited speaker announcements and bios or questions please visit the website at http://www.stormwatersymposium.org/ or contact the program coordination team at program@stormwatersymposium.org. We look forward to seeing you in September!

Submit Abstract

Stormwater Symposium, September 16-17, 2015. SAVE THE DATE!!

cache_4205669869The 2015 Stormwater Symposium will be held at the Alberta Abbey September 16th and 17th. This is a great opportunity for engineering and environmental professionals to hear about the latest innovations in stormwater in Oregon and to network with fellow professionals. See the link to the right for more information. Alberta Abbey is located at 126 NE Alberta Street in Northeast Portland.