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More stories about Portland-Vancouver-Beaverton%2C OR-WA

• Rate discounts ensure low-income customers maintain water, sewer service

  Avert excessive disconnection/reconnection costs by implementing a pricing structure for the financially disadvantaged.

• Removing pavement deicer from stormwater runoff

  An anaerobic processing system cuts one airport's water pollutants by almost 90%.

• ASCE gets new face

• Why invasive species still invade

• DOT close to tapping out stimulus funds

• The war against weeds

  Located just across the Columbia River from Portland, Ore., historic Clark County attracts visitors who enjoy open spaces. But there are some visitors for whom the county would rather not play host: knapweed, poison hemlock, and butterfly bush, to name just a few.

• Renewable Renovation

  Transit agency tests nature's ability to power a train turnaround.

• Kiewit joint venture at work on combined sewer project

• From Garbage to Gold

  For more than 20 years, the city of Portland, Ore.'s Office of Transportation (PDOT) has experimented with recycling techniques—collecting paper, composting leaves, recycling construction debris, etc. Their trials paid off in fiscal year 2006-07, to the tune of nearly $3.6 million.

• Portland's porous pavement a prize