November Meeting Announcement

DATE:     Wednesday, November 28th
PLACE:  Hawthorne Lucky Lab Brew Pub, 915 SE Hawthorne Blvd
TIME:      11:30 a.m. Networking, 12:00 – 1:00 p.m.
TOPIC:   Pavement that can Clean Water
SPEAKERS: Katie Holzer, City of Gresham

Pervious pavement allows rain water to soak through it rather than running off. This type of pavement is known to reduce polluted stormwater runoff going to urban streams by infiltrating water into the soil below.  But can it have benefits in areas where the soil drains too slowly for infiltration?  We studied water quality and road conditions from test sections of pervious pavement on a large arterial road in Gresham, Oregon that is on top of slowly draining soil.  We compared road sections of:

  1.  Conventional asphalt,
  2.  8”-think pervious pavement with an underdrain
  3.  3”-think pervious pavement on top of conventional asphalt
We found that runoff from both types of pervious pavement had lower levels of several pollutants of concern than runoff from conventional asphalt, including sediment, bacteria, nutrients, and heavy metals.  The pollutant reduction of the pervious pavement was found to be similar to, or even higher than, reductions from other stormwater management practices in Gresham.  Additionally, we noted that both types of pervious pavement had fewer potholes, less road spray, and less road noise than the conventional asphalt.  This study indicates that pervious pavement can have multiple benefits to urban stream water quality as well as local road conditions, even when the soil below it drains too slowly for infiltration.

October Meeting Announcement

EWRG October Meeting Announcement

DATE:     Wednesday, October 31st
PLACE:  Hawthorne Lucky Lab Brew Pub, 915 SE Hawthorne Blvd
TIME:      11:30 a.m. Networking, 12:00 – 1:00 p.m.
TOPIC:   Managing Difficult Industrial Pollutants
SPEAKERS: Myles Gray, Geosyntec Consultants, Inc.

Many industrial facilities are facing challenges with difficult pollutants that are not readily manageable with conventional BMPs (best management practices). Hear case studies on evaluating and treating difficult pollutants including dissolved metals, high solids and PAHs.

http://oregonewrg.org/event/october-brownbag-managing-difficult-industrial-pollutants/

2019 EWRG Sustainable Stormwater Symposium Planning Meeting – Oct 9

Come to the first planning meeting for the 2019 ASCE-EWRG Stormwater Symposium! Be a part of making this coming year’s event a success.
The main roles/committees we typically have are: venue, bike tour, sponsorship, abstracts/speakers, registration, graphics.
The kickoff meeting for the event will be held Tuesday, October 9th, 5:00 p.m. at the Dragonwell Bistro.  The first round is on EWRG!

Dragonwell Bistro
735 Southwest 1st Avenue, Corner of 1st and Yamhill, next to Yamhill District Max Station, Portland, OR 97204
(503) 224-0800
www.dragonwellbistro.com

70th Anniversary (1948-2018) Vanport Flood Symposium

EWRG helped sponser this event at PSU reflecting on the history surrounding the Vanport Flood disaster, 70 years later.
Presenters include:
▪ Dr. Scott Burns, Professor Emeritus, PSU Geology
▪ Lumas Helaire, Ph.D. Student, PSU Civil & Env. Engr.
▪ Colin Rowan, Program Manager, Multnomah County Drainage District
▪ Ed Washington, Community Liaison for Diversity Initiatives, Global Diversity & Inclusion, PSU Presidents Office
▪ Dr. Melissa Haeffner, Assistant Professor, PSU Env. Sci. and Mgmt.
▪ Christina Appleby, Geohazards Analyst, DOGAMI
▪ Dr. Jim O’Connor, Research Geologist, USGS
▪ Dr. David Jay, Professor, PSU Civil & Env. Engr.