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Sep. 28, 2015 Stormwater Challenge Series in Portland, OR - FREE

Let's reduce runoff and prevent landslides in the Portland Southwest Hills

Let's reduce runoff and prevent landslides in the Portland Southwest Hills, together. [class flyer]

There's a big difference between infiltrating concentrated volumes of runoff (i.e. downspout disconnection, rain gardens) and infiltrating rainfall. We can properly implement a variety of best management practices (BMPs) that reduce runoff through interception, evaporation, and infiltration of rainfall at sites where you "can't infiltrate" because of steep slopes, high groundwater tables, clay soils, or all three! We'll cover siting, design, construction, maintenance, and cost and work with homeowners to actually build carefully selected and cost-effective BMPs at real sites in Southwest Portland. [Detailed info on challenging site practices]

You'll also learn a variety of other fascinating tidbits. For instance, did you know that the average lawn exports more than two times the total suspended solids of a highway! Compost amended soils is one practice we can use to reduce runoff from lawns by 50% annually and to keep a lot more sediment on our site.

This Sun, Oct 4, 9am - 3pm: Plan & Design Best Practices for Challenging Sites
Learn about the practices, visit two project sites and evaluate them for suitability, and redesign the sites in small group breakout groups, working with the homeowners at your table.

Sun, Nov 1 and Nov 15, 9am - 1pm: Build the Best Practices
We'll meet at our homeowners' sites and actually build a handful of practices that were located and designed in the Oct 4th class.

Register online with Southwest Neighborhoods Inc: http://swni.org/stormwater

This class is provided through a partnership between West Multnomah Soil & Water Conservation District, Southwest Watershed Resource Center, Green Girl Land Development Solutions LLC, Stamberger Outreach and Consulting, and Independence Gardens.