Author Archives trkpost

  • Wash water from car washing activities typically contains dirt (sediment), soap (detergent/surfactants), gasoline and motor oil, as well as metals and oil/grease residues from exhaust fumes and brake pads. When this dirty water is allowed to flow into storm drains, it travels directly to our local creeks and rivers without treatment. This pollution can kill […]

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  • There are numerous environmental  benefits to trees in urban settings. These include the capture of carbon dioxide by trees, shading, and habitat for wildlife. Urban forests can also act as natural storm water management areas by filtering particulate matter (pollutants, some nutrients, and sediment), by absorption of water and by facilitating evapotranspiration to reduce runoff. […]

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  •   City Canopy   Durham 49.0%   Lake Oswego* 47.6%   Rivergrove 37.3%   West Linn* 33.7%   Portland* 27.7%   Beaverton* 25.6%   Tigard* 25.0%   Tualatin* 22.9%   Sherwood* 21.0%   Hillsboro 17.1%   Forest Grove* 16.0%   Gaston 15.5%   North Plains 15.3%   King City 15.0%   Cornelius 13.0%   Banks* […]

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  • What’s on the land determines the condition of the creeks and water quality. Before we developed our urban landscape and farms, the Tualatin River Watershed was covered with forests, prairies and wetlands.  When the rain fell, it was intercepted by plants or soaked into the ground.  There was very little runoff from the ground. Impervious […]

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  • What’s on the land determines the condition of the creeks and water quality. Before we developed our urban landscape and farms, the Tualatin River Watershed was covered with forests, prairies and wetlands.  When the rain fell, it was intercepted by plants or soaked into the ground.  There was very little runoff from the ground. Impervious […]

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  • What’s on the land determines the condition of the creeks and water quality. Before we developed our urban landscape and farms, the Tualatin River Watershed was covered with forests, prairies and wetlands.  When the rain fell, it was intercepted by plants or soaked into the ground.  There was very little runoff from the ground. Impervious […]

    CONTINUE READING
  • Transformation of a Degraded Urban Wetland from Tualatin Riverkeepers on Vimeo. Some people think that degraded urban wetlands are not worth restoring. Tualatin Riverkeepers strongly disagrees. Take a look at a series of aerial photos of the Cook Park Wetland in Tigard over 20 years as it is transformed from a cow pasture to a […]

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  • TUALATIN, OR – Tualatin Riverkeepers Board of Directors voted unanimously to appeal the Beaverton Planning Commission’s approval of a Conditional Use Permit for South Cooper Mountain High School. The Planning Commission, contrary to Beaverton’s comprehensive plan and natural resource protection code voted to allow the Beaverton School District to fill 2.5 acres of wetland for […]

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  • TUALATIN, OR – Tualatin Riverkeepers Board of Directors voted unanimously to appeal the Beaverton Planning Commission’s approval of a Conditional Use Permit for South Cooper Mountain High School. The Planning Commission, contrary to Beaverton’s comprehensive plan and natural resource protection code voted to allow the Beaverton School District to fill 2.5 acres of wetland for […]

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  • TUALATIN, OR – Tualatin Riverkeepers Board of Directors voted unanimously to appeal the Beaverton Planning Commission’s approval of a Conditional Use Permit for South Cooper Mountain High School. The Planning Commission, contrary to Beaverton’s comprehensive plan and natural resource protection code voted to allow the Beaverton School District to fill 2.5 acres of wetland for […]

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(I use my own pagination)s